Patent Publication Number: US-2019189062-A1

Title: System and Method of Controlling Light Emissions of Displays

Description:
BACKGROUND 
     Field of the Disclosure 
     This disclosure relates generally to information handling systems and more particularly to privacy for displays associated with information handling systems. 
     Description of the Related Art 
     As the value and use of information continues to increase, individuals and businesses seek additional ways to process and store information. One option available to users is information handling systems. An information handling system generally processes, compiles, stores, and/or communicates information or data for business, personal, or other purposes thereby allowing users to take advantage of the value of the information. Because technology and information handling needs and requirements vary between different users or applications, information handling systems may also vary regarding what information is handled, how the information is handled, how much information is processed, stored, or communicated, and how quickly and efficiently the information may be processed, stored, or communicated. The variations in information handling systems allow for information handling systems to be general or configured for a specific user or specific use such as financial transaction processing, airline reservations, enterprise data storage, or global communications. In addition, information handling systems may include a variety of hardware and software components that may be configured to process, store, and communicate information and may include one or more computer systems, data storage systems, and networking systems. 
     SUMMARY 
     In one or more embodiments, a display device may display first information via first light emissions of a first zone and may display second information via second light emissions of a second zone. An anisotropic material, of the display device, may obscure the first information along a first axis of the first zone and within a first threshold angle of the first zone and may obscure the second information along a first axis of the second zone and within a first threshold angle of the second zone. In one or more embodiments, the anisotropic material may further obscure the first information along a second axis of the first zone and within a second threshold angle of the first zone and may further obscure the second information along a second axis of the second zone and within a second threshold angle of the second zone. In one example, the second threshold angle may be the first threshold angle. In another example, the second threshold angle may be different from the first threshold angle. In one or more embodiments, a media classification may be determined. For example, the anisotropic material may obscure the first information along the second axis of the first zone and within the second threshold angle of the first zone in response to the determination of the media classification. 
     In one or more embodiments, the anisotropic material may permit the first information along the first axis of the first zone to be viewed by at least one person. In one or more embodiments, the anisotropic material may include a first strips, having a first height, associated with the first axis and second strips, having a second height, associated with the second axis. In one example, the first strips may include non-cubic crystal structures that restrict the first light emissions of the first zone via absorbing at least a portion of the light emissions, along the second axis of the first zone and within the second threshold angle of the first zone, or via diffusing the at least portion of the first light emissions, along the second axis of the first zone and within the second threshold angle of the first zone. In another example, the first information may be displayed via a first portion of the first light emissions, and the first strips may obscure the first portion of the first light emissions. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       For a more complete understanding of the present disclosure and its features/advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, which are not drawn to scale, and in which: 
         FIG. 1A  illustrates an example of an information handling system, according to one or more embodiments; 
         FIG. 1B  illustrates an example of an information handling system coupled to one or more display devices, according to one or more embodiments; 
         FIG. 1C  illustrates an example of an information handling system that includes one or more display devices, according to one or more embodiments; 
         FIG. 2A  illustrates an example of a portion of a display device, according to one or more embodiments; 
         FIG. 2B  illustrates an example of louvers of a display device, according to one or more embodiments; 
         FIG. 2C  illustrates another example of louvers of a display device, according to one or more embodiments; 
         FIG. 2D  illustrates an example of threshold angles of a display device, according to one or more embodiments; 
         FIGS. 2E and 2F  illustrate examples of voltage sources applied to louvers, according to one or more embodiments; 
         FIGS. 2G and 2H  illustrate examples of turning films of a display device, according to one or more embodiments; 
         FIGS. 2I and 2J  illustrate examples of turning films and polarizing films of a display device, according to one or more embodiments; 
         FIGS. 2K and 2L  illustrate examples of light control films and louvers of a display device, according to one or more embodiments; 
         FIGS. 3A-3F  illustrates example display devices, according to one or more embodiments; 
         FIG. 4  illustrates an example of an embedded controller and sensors, according to one or more embodiments; 
         FIG. 5  illustrates an example of a method of enabling privacy of a display device, according to one or more embodiments; 
         FIG. 6A  illustrates an example of an information handling system in a clamshell mode, according to one or more embodiments; 
         FIG. 6B  illustrates an example of an information handling system lying on a surface, according to one or more embodiments; 
         FIGS. 6C and 6D  illustrates examples of an information handling system in a 360 mode, according to one or more embodiments; 
         FIG. 7  illustrates an example of a method of determining a 180 mode, according to one or more embodiments; 
         FIG. 8  illustrates an example of a method of utilizing vectors in determining a 180 mode, according to one or more embodiments; 
         FIG. 9  illustrates an example of a method of controlling light emissions of a display device, according to one or more embodiments; 
         FIG. 10A  illustrates a display with multiple zones, according to one or more embodiments; 
         FIG. 10B  illustrates an example of users of a display, according to one or more embodiments; 
         FIG. 10C  illustrates an example of users that may not utilize a display, according to one or more embodiments; 
         FIG. 10D  illustrates another example of users of a display, according to one or more embodiments; 
         FIG. 11A  illustrates an example of a method of operating an information handling system is illustrated, according to one or more embodiments; 
         FIG. 11B  illustrates an example block diagram of a machine learning system, according to one or more embodiments; 
         FIG. 12  illustrates an example method of operating displays, according to one or more embodiments; and 
         FIG. 13  illustrates an example method of operating zones of a display, according to one or more embodiments. 
     
    
    
     DETAILED DESCRIPTION 
     In the following description, details are set forth by way of example to facilitate discussion of the disclosed subject matter. It should be apparent to a person of ordinary skill in the field, however, that the disclosed embodiments are exemplary and not exhaustive of all possible embodiments. 
     As used herein, a reference numeral refers to a class or type of entity, and any letter following such reference numeral refers to a specific instance of a particular entity of that class or type. Thus, for example, a hypothetical entity referenced by ‘ 12 A’ may refer to a particular instance of a particular class/type, and the reference ‘ 12 ’ may refer to a collection of instances belonging to that particular class/type or any one instance of that class/type in general. 
     In one or more embodiments, a display device may be utilized via various orientations and/or angles. In one example, the display device may be rotated by ninety degrees. For instance, the display device may be rotated from a landscape orientation to a portrait orientation. In another example, the display device may be rotated by one hundred and eighty degrees. For instance, the display device may be associated with a laptop that includes tablet-like features. 
     In one or more embodiments, one or more privacy filters may include tiny blinds called micro louvers, which may be built into the one or more privacy filters. For example, the one or more privacy filters may allow light emissions to pass straight on through but not sideways. For instance, the one or more privacy filters may block or obscure the light emissions at an angle greater than thirty degrees on either side of a screen or display device. In one or more embodiments, the one or more privacy filters may allow a user of an information handling system to see what is on the screen or display device, and any bystander&#39;s view of content, via the light emissions, may be blocked or obscured when viewing the screen or display device outside of a viewing region (e.g., greater than thirty degrees on either side of the screen or display device). For example, the one or more privacy filters may be controllable by the user. For instance, the one or more privacy filters may be turned on or off based on input from the user. 
     In one or more embodiments, privacy of information conveyed via the display device may be conveyed after the display device is rotated. For example, the display device may include a switchable diffuser that is configured to provide privacy of information conveyed via the display device after the display device is rotated and/or after an orientation of the display device is changed. For instance, the switchable diffuser that is configured to provide privacy of information conveyed via the display device may provide privacy protection associated with left side and/or right side intrusions and may continue to provide privacy protection associated with left-side and/or right-side intrusions after the display device is rotated and/or after an orientation of the display device is changed. 
     In one or more embodiments, privacy of information conveyed via the display device may be associated with a top down and/or bottom up intrusions. In one example, a person looking down on the display device may not be able to decipher information conveyed via the display device. In another example, the display device may be on or within a horizontal surface (e.g., a surface of a table, a desk, a counter, etc.), and a person looking towards a top of the display device may not be able to decipher information conveyed via the display device. 
     In one or more embodiments, a display may provide simultaneous multi-media presentation capabilities. For example, different zones of the display may be utilized in providing different content to multiple people. In one or more embodiments, the display may provide privacy of first information via a first zone, may provide privacy of second information via a second zone, may provide privacy of third information via a third zone, etc. In one example, the display may provide zone privacy via one or more angles along one or more axes. In another example, the display may provide zone privacy via one or more distances from the display. For instance, providing zone privacy via the one or more distances from the display may include providing zone privacy via one or more angles with respect to an axis that is orthogonal to two or more other axes of the display. 
     In one or more embodiments, one or more contexts may activate and/or initiate screen privacy. For example, the one or more contexts may include one or more of an orientation context, a location context, an ambient audio context, and a document classification context, among others. In one or more embodiments, an orientation context may pertain to a detection and/or a determination of an information handling system orientation and screen mode using one or more sensors of the information handling system. For example, the one or more sensors of the information handling system may include one or more of a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer, among others. 
     In one or more embodiments, a location context may pertain to a detection and/or a determination of a location of an information handling system orientation. For example, detecting and/or determining a location of the information handling system may include utilizing one or more of a WiFi communication technology, a wireless wide area network (WWAN) communication technology, a Bluetooth communication technology, and a Global Navigation Satellite System (GNSS) communication technology, among others. In one instance, a location engine may process data from one or more sources and may calculate and/or determine a location of the information handling system with respect to one or more reference frames. In another instance, a location of the information handling system may be mapped to a semantically meaningful location such as “WORK”, “HOME”, “AIRPORT”, etc. 
     In one or more embodiments, an ambient audio context may pertain to a detection and/or a determination of an environment. For example, an audio engine may receive audio information and may detect and/or determinate an environment based on the audio information. In one or more embodiments, a sound pressure level may be associated with an environment. For example, the sound pressure level may indicate an environment. In one instance, a “quiet” environment may be associated with a sound pressure level below 30 decibels. In a second instance, “speech” may be associated with a sound pressure level above 40 decibels and less than 60 decibels. In a third instance, a “noisy” environment may be associated with a sound pressure level above 60 decibels and below 80 decibels. In another instance, a “very noisy” environment may be associated with a sound pressure level above 80 decibels. In one or more embodiments, a machine learning model may be trained to determine an environment based at least on audio information. For example, the machine learning model may be trained to determine one or more of a mall, a cafeteria, an airport, and an airplane, among others, based at least on received audio information. 
     In one or more embodiments, training a machine learning model may include utilizing a collection of data that are representative of an environment and extracting invariant features (e.g., invariant features of a time domain, a frequency domain, etc.). For example, the collection of data that are representative of the environment may be utilized in forming representative feature vectors. In one or more embodiments, some feature vectors may be utilized in training models of various forms. For example, the models may include one or more mathematical models, among others. In one or more embodiments, some feature vectors may be utilized in testing the models for recall accuracy and/or precision. For example, sound pressure levels may be subsumed in one or more feature vectors. For instance, the sound pressure levels may not be a dominate classifier in classifying an audio environment. In one or more embodiments, after an information handling system has learned user privacy preferences for the audio environments, the privacy preferences may be automatically applied to one or more display modes. For example, the display modes may include a landscape mode, a portrait mode, and/or a 180 mode, among others. 
     In one or more embodiments, a document classification context may pertain to a detection and/or a determination of a media file classification. For example, a media file classification may include “no restriction”, “restricted”, “internal use”, or “critical handling”, among others. For instance, display privacy, based at least on a media file classification, may include “none”, “horizontal”, “vertical”, or “all around”. 
     In one or more embodiments, a display device may include a switchable diffuser of polymer dispersed liquid crystals (PDLC). For example, the switchable diffuser may provide privacy of information conveyed via the display device. For instance, the information conveyed via the display device may not be viewed by a person along an axis of the display device and within a threshold angle. In one or more embodiments, the PDLC may include non-cubic crystal structures that restrict the light emissions of the display device. For example, the non-cubic crystal structures may absorb at least a portion of light emissions, along the axis of the display device and within the threshold angle, and/or may diffuse the at least portion of the light emissions, along the axis of the display device and within the threshold angle. 
     Turning now to  FIG. 1A , an example of an information handling system is illustrated, according to one or more embodiments. An information handling system (IHS)  110  may include a hardware resource or an aggregate of hardware resources operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, and/or utilize various forms of information, intelligence, or data for business, scientific, control, entertainment, or other purposes, according to one or more embodiments. For example, IHS  110  may be a personal computer, a desktop computer system, a laptop computer system, a server computer system, a mobile device, a personal digital assistant (PDA), a consumer electronic device, an electronic music player, an electronic camera, an electronic video player, a wireless access point, a network storage device, or another suitable device and may vary in size, shape, performance, functionality, and price. In one or more embodiments, components of IHS  110  may include one or more storage devices, one or more communications ports for communicating with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display, among others. In one or more embodiments, IHS  110  may include one or more buses operable to transmit communication between or among two or more hardware components. In one example, a bus of IHS  110  may include one or more of a memory bus, a peripheral bus, and a local bus, among others. In another example, a bus of IHS  110  may include one or more of a Micro Channel Architecture (MCA) bus, an Industry Standard Architecture (ISA) bus, an Enhanced ISA (EISA) bus, a Peripheral Component Interconnect (PCI) bus, HyperTransport (HT) bus, an inter-integrated circuit (I 2 C) bus, a serial peripheral interface (SPI) bus, a low pin count (LPC) bus, an enhanced serial peripheral interface (eSPI) bus, a universal serial bus (USB), a system management bus (SMBus), and a Video Electronics Standards Association (VESA) local bus, among others. 
     In one or more embodiments, IHS  110  may include firmware that controls and/or communicates with one or more hard drives, network circuitry, one or more memory devices, one or more I/O devices, and/or one or more other peripheral devices. For example, firmware may include software embedded in an IHS component utilized to perform tasks. In one or more embodiments, firmware may be stored in non-volatile memory, such as storage that does not lose stored data upon loss of power. In one example, firmware associated with an IHS component may be stored in non-volatile memory that is accessible to one or more IHS components. In another example, firmware associated with an IHS component may be stored in non-volatile memory that may be dedicated to and includes part of that component. For instance, an embedded controller may include firmware that may be stored via non-volatile memory that may be dedicated to and includes part of the embedded controller. 
     As shown, IHS  110  may include a processor  120 , a volatile memory medium  150 , non-volatile memory media  160  and  170 , an I/O subsystem  175 , a network interface  180 , sensors  182 - 186 , and a sensor hub  187 . As illustrated, volatile memory medium  150 , non-volatile memory media  160  and  170 , I/O subsystem  175 , network interface  180 , and sensor hub  187  may be communicatively coupled to processor  120 . In one or more embodiments, sensors  182 - 186  may be communicatively coupled to processor  120  via sensor hub  187 . In one example, sensor hub  187  may be a discrete sensor hub. In another example, sensor hub  187  may be an integrated sensor hub. For instance, sensor hub may be integrated into a system on chip that includes processor  120 . In one or more embodiments, one or more of sensors  182 - 186  may include one or more of a thermistor, a Hall effect sensor, an accelerometer, and a gyroscope, among other sensors. For example, the Hall effect sensor may be utilized in determining an opening and/or a closing of a lid of a laptop IHS. 
     In one or more embodiments, one or more of volatile memory medium  150 , non-volatile memory media  160  and  170 , I/O subsystem  175 , and network interface  180  may be communicatively coupled to processor  120  via one or more buses, one or more switches, and/or one or more root complexes, among others. In one example, one or more of volatile memory medium  150 , non-volatile memory media  160  and  170 , I/O subsystem  175 , and network interface  180  may be communicatively coupled to processor  120  via one or more PCI-Express (PCIe) root complexes. In another example, one or more of an I/O subsystem  175  and a network interface  180  may be communicatively coupled to processor  120  via one or more PCIe switches. 
     In one or more embodiments, the term “memory medium” may mean a “storage device”, a “memory”, a “memory device”, a “tangible computer readable storage medium”, and/or a “computer-readable medium”. For example, computer-readable media may include, without limitation, storage media such as a direct access storage device (e.g., a hard disk drive, a floppy disk, etc.), a sequential access storage device (e.g., a tape disk drive), a compact disk (CD), a CD-ROM, a digital versatile disc (DVD), a random access memory (RAM), a read-only memory (ROM), a one-time programmable (OTP) memory, an electrically erasable programmable read-only memory (EEPROM), and/or a flash memory, a solid state drive (SSD), or any combination of the foregoing, among others. 
     In one or more embodiments, one or more protocols may be utilized in transferring data to and/or from a memory medium. For example, the one or more protocols may include one or more of small computer system interface (SCSI), Serial Attached SCSI (SAS) or another transport that operates with the SCSI protocol, advanced technology attachment (ATA), serial ATA (SATA), a USB interface, an Institute of Electrical and Electronics Engineers (IEEE) 1394 interface, a Thunderbolt interface, an advanced technology attachment packet interface (ATAPI), serial storage architecture (SSA), integrated drive electronics (IDE), or any combination thereof, among others. 
     Volatile memory medium  150  may include volatile storage such as, for example, RAM, DRAM (dynamic RAM), EDO RAM (extended data out RAM), SRAM (static RAM), etc. One or more of non-volatile memory media  160  and  170  may include nonvolatile storage such as, for example, a read only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM, NVRAIVI (non-volatile RAM), ferroelectric RAM (FRAM), a magnetic medium (e.g., a hard drive, a floppy disk, a magnetic tape, etc.), optical storage (e.g., a CD, a DVD, a BLU-RAY disc, etc.), flash memory, a SSD, etc. In one or more embodiments, a memory medium can include one or more volatile storages and/or one or more nonvolatile storages. 
     In one or more embodiments, network interface  180  may be utilized in communicating with one or more networks and/or one or more other information handling systems. In one example, network interface  180  may enable IHS  110  to communicate via a network utilizing a suitable transmission protocol and/or standard. In a second example, network interface  180  may be coupled to a wired network. In a third example, network interface  180  may be coupled to an optical network. In another example, network interface  180  may be coupled to a wireless network. 
     In one or more embodiments, network interface  180  may be communicatively coupled via a network to a network storage resource. For example, the network may be implemented as, or may be a part of, a storage area network (SAN), personal area network (PAN), local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a wireless local area network (WLAN), a virtual private network (VPN), an intranet, an Internet or another appropriate architecture or system that facilitates the communication of signals, data and/or messages (generally referred to as data). For instance, the network may transmit data utilizing a desired storage and/or communication protocol, including one or more of Fibre Channel, Frame Relay, Asynchronous Transfer Mode (ATM), Internet protocol (IP), other packet-based protocol, Internet SCSI (i SCSI), or any combination thereof, among others. 
     In one or more embodiments, processor  120  may execute processor instructions in implementing one or more systems, flowcharts, methods, and/or processes described herein. In one example, processor  120  may execute processor instructions from one or more of memory media  150 - 170  in implementing one or more systems, flowcharts, methods, and/or processes described herein. In another example, processor  120  may execute processor instructions via network interface  180  in implementing one or more systems, flowcharts, methods, and/or processes described herein. 
     In one or more embodiments, processor  120  may include one or more of a system, a device, and an apparatus operable to interpret and/or execute program instructions and/or process data, among others, and may include one or more of a microprocessor, a microcontroller, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and another digital or analog circuitry configured to interpret and/or execute program instructions and/or process data, among others. In one example, processor  120  may interpret and/or execute program instructions and/or process data stored locally (e.g., via memory media  150 - 170  and/or another component of IHS  110 ). In another example, processor  120  may interpret and/or execute program instructions and/or process data stored remotely (e.g., via a network storage resource). 
     In one or more embodiments, I/O subsystem  175  may represent a variety of communication interfaces, graphics interfaces, video interfaces, user input interfaces, and/or peripheral interfaces, among others. For example, I/O subsystem  175  may include one or more of a touch panel and a display adapter, among others. For instance, a touch panel may include circuitry that enables touch functionality in conjunction with a display that is driven by a display adapter. 
     As shown, non-volatile memory medium  160  may include an operating system (OS)  162 , and applications (APPs)  164 - 168 . In one or more embodiments, one or more of OS  162  and APPs  164 - 168  may include processor instructions executable by processor  120 . In one example, processor  120  may execute processor instructions of one or more of OS  162  and APPs  164 - 168  via non-volatile memory medium  160 . In another example, one or more portions of the processor instructions of the one or more of OS  162  and APPs  164 - 168  may be transferred to volatile memory medium  150 , and processor  120  may execute the one or more portions of the processor instructions of the one or more of OS  162  and APPs  164 - 168  via volatile memory medium  150 . 
     As illustrated, non-volatile memory medium  170  may include information handling system firmware (IHSFW)  172 . In one or more embodiments, IHSFW  172  may include processor instructions executable by processor  120 . For example, IHSFW  172  may include one or more structures and/or functionalities of one or more of a basic input/output system (BIOS), an Extensible Firmware Interface (EFI), a Unified Extensible Firmware Interface (UEFI), and an Advanced Configuration and Power Interface (ACPI), among others. In one instance, processor  120  may execute processor instructions of IHSFW  172  via non-volatile memory medium  170 . In another instance, one or more portions of the processor instructions of IHSFW  172  may be transferred to volatile memory medium  150 , and processor  120  may execute the one or more portions of the processor instructions of IHSFW  172  via volatile memory medium  150 . 
     In one or more embodiments, processor  120  and one or more components of IHS  110  may be included in a system-on-chip (SoC). For example, the SoC may include processor  120  and a platform controller hub (not specifically illustrated). 
     Turning now to  FIG. 1B , an example of an information handling system coupled to one or more display devices is illustrated, according to one or more embodiments. As shown, IHS  110  may be coupled to one or more of display devices  190 A- 190 C. 
     Turning now to  FIG. 1C , an example of an information handling system that includes one or more display devices is illustrated, according to one or more embodiments. As shown, IHS  110  may include one or more of display devices  190 A- 190 C. 
     Turning now to  FIG. 2A , an example of a portion of a display device is illustrated, according to one or more embodiments. As shown, a display portion  210  may include pixels  220 A- 2200 . In one or more embodiments, pixel  220  may be or include a physical point in an image displayed by display device  190 . For example, pixel  220  may be or include a smallest controllable element of an image represented via display device  190 . For instance, display device  190  may convey information via pixels  220 . In one or more embodiments, display device  190  may emit light via pixels  220 . For example, display device  190  may emit different colors of light via pixels  220 . In one instance, pixel  220  may emit a single color. In another instance, pixel  220  may emit light at an intensity. 
     As shown, display portion  210  may include louvers  230 A- 230 D and  240 A- 240 D. In one or more embodiments, each of louver  230  and louver  240  may be or include a strip that has a height. Although not specifically illustrated, one or more of louvers  230  and  240  may extend into another display portion, according to one or more embodiments. 
     In one or more embodiments, one or more of louver  230  and louver  240  may include non-cubic crystal structures. In one example, the non-cubic crystal structures may restrict light emissions of display device  190 . For instance, the non-cubic crystal structures may be utilized in absorbing and/or diffusing at least a portion of light emissions of display device  190 . In another example, one or more of louver  230  and louver  240  may include liquid crystals. For instance, the liquid crystals may be utilized in absorbing and/or diffusing at least a portion of light emissions of display device  190 . 
     In one or more embodiments, one or more of louver  230  and louver  240  may include PDLC. For example, the PDLC of a louver may restrict light emissions of display device  190 . In one or more embodiments, when no voltage (e.g., zero voltage) is applied to the PDLC of one or more of louver  230  and louver  240 , the liquid crystals of the PDLC may be randomly arranged, which may scatter light emissions of display device  190 . For example, the PDLC of one or more of louver  230  and louver  240  may absorb and/or diffuse at least a portion of light emissions of display device  190 . In one or more embodiments, one or more voltages, greater than a zero voltage, may be applied to one or more of louver  230  and louver  240 . For example, when applying the one or more voltages, greater than a zero voltage, to one or more of louver  230  and louver  240 , an electrical current may pass through the PDLC, which may align crystals of the PDLC along parallel axes that may permit light emissions of display device  190  to pass through. For instance, one or more degrees of transparency of light emissions of display device  190  may be associated with respective the one or more applied voltages to one or more of louver  230  and louver  240 . In one or more embodiments, lower voltages applied to one or more of louver  230  and louver  240  may align a few liquid crystals of the PDLC, which may permit a small portion of light emissions of display device  190 . In one or more embodiments, as voltages applied to one or more of louver  230  and louver  240  increase, fewer of the liquid crystals of the PDLC may be out of alignment, which may permit an increase in permitted light emissions of display device  190 . For example, one or more voltages applied to one or more of louver  230  and louver  240  may be utilized to control one or more amounts of light emissions of display device  190 . 
     Turning now to  FIG. 2B , an example of louvers of a display device is illustrated, according to one or more embodiments. As shown, louvers  230 A and  230 B may have a height. In one or more embodiments, louvers  230 A and  230 B may have a height above pixels  220 A- 220 C. As illustrated, louver  230 C may have a height. In one or more embodiments, louvers  230 B and  230 C may have a height above pixels  220 D- 220 F. 
     In one or more embodiments, a threshold angle may be associated with louvers  230  when louvers  230  absorb and/or diffuse at least a portion of light emissions of display device  190 . For example, at least a portion of light emissions of display device  190  may be absorbed and/or diffused by louvers  230  when a viewing angle is less than the threshold angle θ T  or greater than 180-θ T . In one instance, information conveyed via pixels  220  may not be decipherable by a person when louvers  230  absorb and/or diffuse at least a portion of light emissions of display device  190  and a viewing angle is less than the threshold angle θ T  or greater than 180-θ T . In another instance, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle θ T  and less than 180-θ T . 
     Turning now to  FIG. 2C , another example of louvers of a display device is illustrated, according to one or more embodiments. As shown, louvers  240 A and  240 B may have a height. In one or more embodiments, louvers  240 A and  240 B may have a height above pixels  220 A and  220 D. As illustrated, louver  240 C may have a height. In one or more embodiments, louvers  240 B and  240 C may have a height above pixels  220 B and  220 E. 
     In one or more embodiments, a threshold angle may be associated with louvers  240  when louvers  240  absorb and/or diffuse at least a portion of light emissions of display device  190 . For example, at least a portion of light emissions of display device  190  may be absorbed and/or diffused by louvers  240  when a viewing angle is less than the threshold angle θ T  or greater than 180-ϕ T . In one instance, information conveyed via pixels  220  may not be decipherable by a person when louvers  240  absorb and/or diffuse at least a portion of light emissions of display device  190  and a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T . In another instance, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle ϕ T  and less than 180-ϕ T . 
     In one or more embodiments, louvers  230  and louvers  240  may be stacked. In one example, louvers  230  may be stacked on louvers  240 . In another example, louvers  240  may be stacked on louvers  230 . In one or more embodiments, louvers  230  and louvers  240  may form an anisotropic material. In one or more embodiments, an anisotropic material may include louvers  230  and louvers  240 . In one or more embodiments, a filter may include louvers  230  and louvers  240 . In one example, the filter may obscure and/or block information, via light emissions of a display device, at one or more viewing angles. In another example, the filter may permit and/or allow information, via light emissions of a display device, at one or more viewing angles. 
     Turning now to  FIG. 2D , an example of threshold angles of a display device is illustrated, according to one or more embodiments. As shown, display device  190  may include display portion  210 . In one or more embodiments, display device  190  may include other display portions  210 . For example, display portion  210  may be for example and/or for illustrative purposes and may not actually exist within display device  190 . As illustrated, the threshold angle ϕ T  or may be with reference to an axis  250 , and the threshold angle θ T  may be with reference to an axis  260 . 
     Turning now to  FIGS. 2E and 2F , examples of voltage sources applied to louvers are illustrated, according to one or more embodiments. As shown in  FIG. 2E , a voltage source  262  may apply a voltage to louver  230 . The dashed sections of louver  230  indicate that louver  230  may be of any length. In one or more embodiments, voltage source  262  may apply a voltage to multiple louvers  230 . For example, applying a voltage to multiple louvers  230  may actuate and/or engage louvers  230  such that louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190  and a viewing angle is less than the threshold angle θ T  or greater than 180-θ T  with respect to axis  260 . For instance, a person may not be able to decipher information conveyed from display device  190  when a viewing angle is less than the threshold angle θ T  or greater than 180-θ T  with respect to axis  260  when a voltage from voltage source  262  is applied to louvers  230 . In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle θ T  and less than 180-θ T  with respect to axis  260  when a voltage is not applied to louvers  230 . 
     As illustrated in  FIG. 2F , a voltage source  264  may apply a voltage to louver  240 . The dashed sections of louver  230  indicate that louver  240  may be of any length. In one or more embodiments, voltage source  264  may apply a voltage to multiple louvers  240 . In one example, applying a voltage to multiple louvers  240  may actuate and/or engage louvers  240  such that louvers  240  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190  and a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T  with respect to axis  250 . For instance, a person may not be able to decipher information conveyed from display device  190  when a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T  with respect to axis  250  when a voltage from voltage source  264  is applied to louvers  240 . In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle ϕ T  and less than 180-ϕ T  with respect to axis  250  when a voltage is not applied to louvers  240 . In one or more embodiments, one or more of voltage sources  262  and  264  may be controlled via one or more of processor  120  and an embedded controller  410  (described further below), among others. 
     Turning now to  FIGS. 2G and 2H , examples of turning films of a display device are illustrated, according to one or more embodiments. As shown in  FIG. 2G , display portion  210  may include a reflector  270 , a light guide  272 A, a light source  274 A, a light guide  272 B, a light source  274 B, a turning film  276 A, and a panel  278 . As illustrated in  FIG. 2H , display portion  210  may include reflector  270 , a light guide  272 C, a light source  274 C, a light guide  272 D, a light source  274 D, a turning film  276 B, and panel  278 . In one or more embodiments, display portion  210  illustrated in  FIG. 2G  may be associated with axis  250 . In one or more embodiments, display portion  210  illustrated in  FIG. 2H  may be associated with axis  260 . In one or more embodiments, utilizing display portion  210  illustrated in  FIGS. 2G and 2H  may provide privacy along one or more of axes  250  and  260 . In one or more embodiments, an anisotropic material may include one or more of light guide  272 , light source  274 , turning film  276 , and panel  278 , among others. 
     In one or more embodiments, a light guide  272  may transmit illumination provided by a light source  274 . In one example, light source  274  may include one or more light emitting diodes (LEDs). In a second example, light source  274  may include one or more cold cathode fluorescent lights (CCFLs). In another example, light source  274  may include one or more incandescent light sources. In one or more embodiments, light sources  274  may be driven and/or illuminated, in a selective fashion, in producing variable and/or switchable distributions of light emissions. In one or more embodiments, turning film  276  may be optically transparent and may have a thickness. For example, turning film  276  may be associated with one or more attributes such as one or more of a low haze and a high clarity, among others. For instance, the one or more attributes of turning film  276  may reduce and/or eliminate undesirable scattering of incident light emissions. In one or more embodiments, turning film  276  may have a high index of refraction. For example, the index of refraction of turning film  276  may be one and one-half (1.5) or greater. In one or more embodiments, turning film  276  may be or include an asymmetric turning film. In one or more embodiments, panel  278  may include a liquid crystal display (LCD). In one or more embodiments, panel  278  may be or include a variable contrast panel. 
     Turning now to  FIGS. 2I and 2J , examples of turning films and polarizing films of a display device are illustrated, according to one or more embodiments. As shown in  FIG. 2I , display portion  210  may include reflector  270 , light guide  272 A, light source  274 A, a polarizing film  280 A, turning film  276 A, and panel  278 . As illustrated in  FIG. 2J , display portion  210  may include reflector  270 , light guide  272 C, light source  274 C, a polarizing film  280 B, turning film  276 B, and panel  278 . In one or more embodiments, display portion  210  illustrated in  FIG. 2I  may be associated with axis  250 . In one or more embodiments, display portion  210  illustrated in  FIG. 2J  may be associated with axis  260 . In one or more embodiments, utilizing display portion  210  illustrated in  FIGS. 2I and 2J  may provide privacy along one or more of axes  250  and  260 . In one or more embodiments, an anisotropic material may include one or more of light guide  272 , light source  274 , turning film  276 , polarizing film  280 , and panel  278 , among others. 
     Turning now to  FIGS. 2K and 2L , examples of light control films and louvers of a display device are illustrated, according to one or more embodiments. As shown in  FIG. 2K , display portion  210  may include reflector  270 , light guide  272 A, light source  274 A, a light control film  282 A, louvers  230 , and panel  278 . As illustrated in  FIG. 2L , display portion  210  may include reflector  270 , light guide  272 C, light source  274 C, a light control film  282 B, louvers  240 , and panel  278 . In one or more embodiments, display portion  210  illustrated in  FIG. 2K  may be associated with axis  250 . In one or more embodiments, display portion  210  illustrated in  FIG. 2L  may be associated with axis  260 . In one or more embodiments, utilizing display portion  210  illustrated in  FIGS. 2K and 2L  may provide privacy along one or more of axes  250  and  260 . In one or more embodiments, an anisotropic material may include one or more of light guide  272 , light source  274 , turning film  276 , light control film  282 , louvers  230 , louvers  240 , and panel  278 , among others. 
     Turning now to  FIGS. 3A-3F , example display devices are illustrated, according to one or more embodiments. With reference to  FIG. 3A , display device  190 A may be in a landscape mode. In one example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 A when a viewing angle is less than the threshold angle θ T  or greater than 180-θ T  with respect to axis  260 A. For instance, a person may not be able to decipher information conveyed from display device  190 A when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 A. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle θ T  and less than 180 -θ T  with respect to axis  260 A. 
     With reference to  FIG. 3B , display device  190 A may be in a portrait mode. In one example, louvers  240  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 A when a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T  with respect to axis  250 A. For instance, a person may not be able to decipher information conveyed from display device  190 A when a viewing angle is less than the threshold angleϕ T  or greater than 180- T  with respect to axis  250 A. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle ϕ T  and less than 180-ϕ T  with respect to axis  250 A. 
     In one or more embodiments, with reference to either of  FIGS. 3A and 3B , louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 A, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 A. For example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 A when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 A, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 A when a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T  with respect to axis  250 A. For instance, a person may not be able to decipher information conveyed from display device  190 A when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 A and/or when a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 A. 
     With reference to  FIG. 3C , display device  190 B may be in a portrait mode. In one or more embodiments, an IHS  110 A (e.g., a tablet computing device) may include display device  190 B. In one example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 B when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 B. For instance, a person may not be able to decipher information conveyed from display device  190 B when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 B. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle θ T  and less than 180 -θ T  with respect to axis  260 B. 
     With reference to  FIG. 3D , display device  190 B may be in a landscape mode. In one example, louvers  240  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 B when a viewing angle is less than the threshold angle ϕ T  or greater than 180 -ϕ T  with respect to axis  250 B. For instance, a person may not be able to decipher information conveyed from display device  190 B when a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 B. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle ϕ T  and less than 180- T  with respect to axis  250 B. 
     In one or more embodiments, with reference to either of  FIGS. 3C and 3D , louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 B, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 B. For example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 B when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 B, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 B and a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 B. For instance, a person may not be able to decipher information conveyed from display device  190 B when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 B and/or when a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 B. 
     With reference to  FIG. 3E , display device  190 C may be in a portrait mode. In one or more embodiments, an IHS  110 B (e.g., a wireless telephone, a smart phone, a PDA, a digital music player, etc.) may include display device  190 C. In one example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 C when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 C. For instance, a person may not be able to decipher information conveyed from display device  190 C when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 C. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle θ T  and less than 180 -θ T  with respect to axis  260 C. 
     With reference to  FIG. 3F , display device  190 C may be in a landscape mode. In one example, louvers  240  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 C when a viewing angle is less than the threshold angle ϕ T  or greater than 180 -ϕ T  with respect to axis  250 C. For instance, a person may not be able to decipher information conveyed from display device  190 C when a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 C. In another example, information conveyed via pixels  220  may be decipherable by a person when a viewing angle is greater than the threshold angle ϕ T  and less than 180- T  with respect to axis  250 C. 
     In one or more embodiments, with reference to either of  FIGS. 3E and 3F , louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 C, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 C. For example, louvers  230  may absorb, diffuse, and/or obscure at least a portion of light emissions of display device  190 C when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 C, and louvers  240  may absorb, diffuse, and/or obscure at least another portion of light emissions of display device  190 C when a viewing angle is less than the threshold angle ϕ T  or greater than 180- T  with respect to axis  250 C. For instance, a person may not be able to decipher information conveyed from display device  190 C when a viewing angle is less than the threshold angle θ T  or greater than 180 -θ T  with respect to axis  260 C and/or when a viewing angle is less than the threshold angle ϕ T  or greater than 180-ϕ T  with respect to axis  250 C. 
     Turning now to  FIG. 4 , an example of a controller and sensors is illustrated, according to one or more embodiments. As shown, a controller may include a controller processor  420 , a volatile memory medium  450 , a non-volatile memory medium  470 , and an interface  480 . As illustrated, non-volatile memory medium  474  may include an controller FW  474 , which may include an OS  462  and APPs  464 - 468 , and may include controller data  476 . For example, OS  462  may be or include a real time operating system (RTOS). 
     In one or more embodiments, one or more of OS  462  and APPs  464 - 468  may include processor instructions executable by controller processor  420 . In one example, controller processor  420  may execute processor instructions of one or more of OS  462  and APPs  464 - 468  via non-volatile memory medium  470 . In another example, one or more portions of the processor instructions of the one or more of OS  462  and APPs  464 - 468  may be transferred to volatile memory medium  450 , and controller processor  420  may execute the one or more portions of the processor instructions of the one or more of OS  462  and APPs  464 - 468  via volatile memory medium  450 . 
     In one or more embodiments, controller processor  420  may utilize controller data  476 . In one example, controller processor  420  may utilize controller data  476  via non-volatile memory medium  470 . In another example, one or more portions of controller data  476  may be transferred to volatile memory medium  450 , and controller processor  420  may utilize controller data  476  via volatile memory medium  450 . 
     As illustrated, display device  190  may include controller  410  and one or more of sensors  482 - 486 . In one or more embodiments, one or more of sensors  482 - 486  may be coupled to controller  410 . For example, one or more of sensors  482 - 486  may be coupled to an interface  480  of controller  410 . In one or more embodiments, interface  480  may be or include a sensor hub. In one or more embodiments, interface  480  may include one or more of an I 2 C interface, a SPI interface, a USB interface, a general purpose input/output (GPIO) interface, and a universal asynchronous receiver-transmitter (UART) interface, among others. In one or more embodiments, sensors  482 - 486  may include one or more structures and/or functionalities as those described with reference to respective sensors  182 - 186 . For example, controller processor  420  may receive data from one or more of sensors  482 - 486 . For instance, controller processor  420  may receive data from one or more of sensors  482 - 486  via interface  480 . 
     In one or more embodiments, controller  410  may be coupled to IHS  110 . For example, controller  410  may receive and/or provide information from and/or to IHS  110 . In one or more embodiments, controller  410  may control louvers  230  and  240  based on information received from one or more of sensors  482 - 486  and IHS  110 . As shown, voltage sources  262  and  264  may be coupled to controller  410 . In one or more embodiments, one or more of controller  410  and controller  420  may control one or more of voltage sources  262  and  264 . In one or more embodiments, one or more of IHS  110  and processor  120  may control one or more of voltage sources  262  and  264  via one or more of controller  410  and controller  420 . 
     Turning now to  FIG. 5 , an example of a method of enabling privacy of a display device is illustrated, according to one or more embodiments. At  510 , it may be determined if a mode has changed. For example, IHS  110  may determine if a mode has changed. In one instance, processor  120  may receive an interrupt that indicates the mode change. In another instance, IHS  110  may receive user input that indicates the mode change. If the mode has not changed, the method may return to  510 , according to one or more embodiments. If the mode has changed, it may be determined if the mode is a “180 mode”, a “360 mode”, or a “clamshell mode”, at  515 . If the mode is the mode is the clamshell mode, privacy along a first axis may be enabled, at  520 . For example,  FIG. 6A  illustrates IHS  110  in the clamshell mode, and privacy along axis  260  may be enabled. In one or more embodiments, the method may proceed to  510 . In one or more embodiments, the user input may be received via a software interface of IHS  110 . For example, the user input may be received via a graphical user interface of IHS  110 . In one or more embodiments, the user input may be received via a physical switch of IHS  110 . For example, the user input may be received via a physical push button of IHS  110 . 
     If the mode is the 180 mode, privacy along two axes may be enabled, at  525 . For example,  FIG. 6B  illustrates IHS  110  in the 180 mode, and privacy along axes  250  and  260  may be enabled. In one instance, IHS  110  may be lying flat on a table  610 . In another instance, IHS  110  may be lying substantially flat on a hand or lap of a person. In one or more embodiments, the method may proceed to  510 . If the mode is the 360 mode, it may be determined if an orientation of display device  190  is a portrait orientation, at  530 . If the orientation is not the portrait orientation, privacy along the first axis may be enabled, at  520 . In one example,  FIG. 6C  illustrates an example of IHS  110  in a 360 mode. In another example,  FIG. 6D  illustrates another example of IHS  110  in a 360 mode. In one or more embodiments, the method may proceed to  510 . If the orientation is the portrait orientation, privacy along a second axis may be enabled, at  535 . 
     Turning now to  FIG. 7 , an example of a method of determining a 180 mode is illustrated, according to one or more embodiments. At  710 , it may be determined if two accelerometers provide data. In one or more embodiments, determining if two accelerometers provide data may include determining if two accelerometers are present. In one or more embodiments, determining if two accelerometers provide data may include determining if two accelerometers are communicatively coupled to processor  120 . If the two accelerometers provide data, data from an accelerometer of IHS  110  may be received, at  715 . For example, processor  120  may receive data from sensor  182  (e.g., an accelerometer) may be received. At  720 , data from an accelerometer of a display device may be received. For example, processor  120  may receive data from sensor  482  (e.g., an accelerometer). For instance, processor  120  may receive data from sensor  482  may be received via controller processor  420 . 
     At  725 , it may be determined if the data from the accelerometer of IHS  110  matches 9.8 m/s 2 . For example, determining if the data from the accelerometer of IHS  110  matches 9.8 m/s 2  may include determining if the data from the accelerometer of IHS  110  matches a typical acceleration of gravity. In one or more embodiments, determining a match may include determining if data is within a tolerance. For example, the tolerance may include plus or minus five percent (5%). If the data from the accelerometer of IHS  110  does not match 9.8 m/s 2 , a mode of non-180 mode may be set, at  730 . In one or more embodiments, the method may proceed to  710 . If the data from the accelerometer of IHS  110  matches 9.8 m/s 2 , it may be determined if the data from the accelerometer of display device  190  matches 9.8 m/s 2 , at  735 . For example, determining if the data from the accelerometer of display device  190  matches 9.8 m/s 2  may include determining if the data from the accelerometer of display device  190  matches a typical acceleration of gravity. In one or more embodiments, determining a match may include determining if data is within a tolerance. For example, the tolerance may include plus or minus five percent (5%). 
     If the data from the accelerometer of display device  190  does not match 9.8 m/s 2 , the mode of non-180 mode may be set, at  730 . In one or more embodiments, the method may proceed to  710 . If the data from the accelerometer of display device  190  matches 9.8 m/s 2 , the mode may be set to the 180 mode, at  750 . In one or more embodiments, the method may proceed to  710 . If two accelerometers do not provide data, data from the accelerometer of IHS  110  may be received, at  740 . For example, processor  120  may receive data from sensor  182  (e.g., an accelerometer) may be received. 
     At  745 , it may be determined if the data from the accelerometer of IHS  110  matches 9.8 m/s 2 . For example, determining if the data from the accelerometer of IHS  110  matches 9.8 m/s 2  may include determining if the data from the accelerometer of IHS  110  matches a typical acceleration of gravity. In one or more embodiments, determining a match may include determining if data is within a tolerance. For example, the tolerance may include plus or minus five percent (5%). If the data from the accelerometer of IHS  110  does not match 9.8 m/s 2 , a mode of non-180 mode may be set, at  730 . In one or more embodiments, the method may proceed to  710 . If the data from the accelerometer of IHS  110  matches 9.8 m/s 2 , the mode may be set to the 180 mode, at  750 . In one or more embodiments, the method may proceed to  710 . 
     Turning now to  FIG. 8 , an example of a method of utilizing vectors in determining a 180 mode is illustrated, according to one or more embodiments. At  810 , it may be determined if two accelerometers provide data. In one or more embodiments, determining if two accelerometers provide data may include determining if two accelerometers are present. In one or more embodiments, determining if two accelerometers provide data may include determining if two accelerometers are communicatively coupled to processor  120 . If the two accelerometers provide data, data from an accelerometer of IHS  110  may be received, at  815 . For example, processor  120  may receive data from sensor  182  (e.g., an accelerometer) may be received. At  820 , data from an accelerometer of a display device may be received. For example, processor  120  may receive data from sensor  482  (e.g., an accelerometer). For instance, processor  120  may receive data from sensor  482  may be received via controller processor  420 . 
     At  825 , it may be determined if an orientation between IHS  110  and display  190  is within a threshold. For example, the orientation between IHS  110  and display  190  may be represented by an angle ω, illustrated in  FIG. 6A . In one or more embodiments, determining if the orientation between IHS  110  and display  190  is within the threshold may include utilizing the data from the accelerometer of IHS  110  as a first vector and utilizing the data from the accelerometer of display device  190  as a second vector. For example, determining if the orientation between IHS  110  and display  190  is within the threshold may include determining if an angle between the first vector and the second vector is less than or equal to a threshold angle. For instance, determining if an angle, ω, between the first vector and the second vector is less than or equal to a threshold angle, ω Threshold , may include determining: 
     
       
         
           
             ω 
             = 
             
               
                 
                   cos 
                   
                     - 
                     1 
                   
                 
                  
                 
                   ( 
                   
                     
                       
                         
                           X 
                           1 
                         
                         → 
                       
                       · 
                       
                         
                           X 
                           2 
                         
                         → 
                       
                     
                     
                       
                          
                         
                           
                             X 
                             1 
                           
                           → 
                         
                          
                       
                       · 
                       
                          
                         
                           
                             X 
                             2 
                           
                           → 
                         
                          
                       
                     
                   
                   ) 
                 
               
               ≤ 
               
                 ω 
                 Threshold 
               
             
           
         
       
     
     If the orientation between IHS  110  and display  190  is not within the threshold (e.g., ω is not less than or equal to ω Threshold ), a mode of a non-180 mode may be set, at  830 . If the orientation between IHS  110  and display  190  is within the threshold (e.g., ω is less than or equal to ω Threshold ), a mode of a 180 mode may be set, at  850 . In one or more embodiments, the method may proceed to  810 . If two accelerometers do not provide data, data from the accelerometer of IHS  110  may be received, at  840 . For example, processor  120  may receive data from sensor  182  (e.g., an accelerometer) may be received. 
     At  845 , it may be determined if the data from the accelerometer of IHS  110  matches 9.8 m/s 2 . For example, determining if the data from the accelerometer of IHS  110  matches 9.8 m/s 2  may include determining if the data from the accelerometer of IHS  110  matches a typical acceleration of gravity. In one or more embodiments, determining a match may include determining if data is within a tolerance. For example, the tolerance may include plus or minus five percent (5%). If the data from the accelerometer of IHS  110  does not match 9.8 m/s 2 , a mode of non-180 mode may be set, at  830 . In one or more embodiments, the method may proceed to  810 . If the data from the accelerometer of IHS  110  matches 9.8 m/s 2 , the mode may be set to the 180 mode, at  850 . In one or more embodiments, the method may proceed to  810 . 
     Turning now to  FIG. 9 , an example of a method of controlling light emissions of a display device is illustrated, according to one or more embodiments. At  910 , information may be displayed via light emissions of a display device via a first orientation. In one example, display device  190 A may display information may be displayed via light emissions via a first orientation, as illustrated in  FIG. 3A . In a second example, display device  190 B may display information may be displayed via light emissions via a first orientation, as illustrated in  FIG. 3C . In another example, display device  190 C may display information may be displayed via light emissions via a first orientation, as illustrated in  FIG. 3E . 
     At  915 , the information along a first axis of the display device and within a first threshold angle may be obscured. In one example, the information along axis  260 A of display device  190 A and within θ T  may be obscured. In a second example, the information along axis  260 B of display device  190 B and within θ T  may be obscured. In another example, the information along axis  260 C of display device  190 C and within θ T  may be obscured. In one or more embodiments, an anisotropic material, of the display device, may obscure the information along the first axis of the display device and within the first threshold angle. For example, the anisotropic material may include louvers  230 . In one instance, louvers  230  may be orthogonal to the first axis. In another instance, louvers  230  may be substantially orthogonal to the first axis (e.g., within a few degrees of orthogonal to the first axis). 
     At  920 , it may be determined that the first orientation changes to a second orientation. In one example, it may be determined that the first orientation of display device  190 A, illustrated, in  FIG. 3A , changes to a second orientation of display device  190 A, illustrated in  FIG. 3B . In a second example, it may be determined that the first orientation of display device  190 B, illustrated, in  FIG. 3C , changes to a second orientation of display device  190 B, illustrated in  FIG. 3D . In a third example, it may be determined that the first orientation of display device  190 C, illustrated, in  FIG. 3E , changes to a second orientation of display device  190 C, illustrated in  FIG. 3F . In another example, it may be determined that the first orientation of display device  190  changes to a second orientation of display device  190 , illustrated in  FIG. 6B . In one or more embodiments, determining that the first orientation changes to the second orientation may include receiving data from at least one of an electronic accelerometer, an electronic gyroscope, and an electronic magnetometer, among others, and determining that the first orientation changes to the second orientation based at least on the data from the at least one of the electronic accelerometer, the electronic gyroscope, and the electronic magnetometer, among others. In one example, sensors  182 - 186  may include the electronic accelerometer, the electronic gyroscope, and the electronic magnetometer, respectively. In another example, sensors  482 - 486  may include the electronic accelerometer, the electronic gyroscope, and the electronic magnetometer, respectively. 
     At  925 , the information along a second axis of the display device and within a second threshold angle may be obscured. In one example, the information along axis  250 A of display device  190 A and within ϕ T  may be obscured. In a second example, the information along axis  250 B of display device  190 B and within ϕ T  may be obscured. In a third example, the information along axis  250 C of display device  190 C and within ϕ T  may be obscured. In another example, the information along axis  250  of display device  190  and within ϕ T  may be obscured, illustrated in  FIG. 6A . In one or more embodiments, an anisotropic material may obscure the information along the second axis of the display device and within the second threshold angle. For example, the anisotropic material may include louvers  240 . In one instance, louvers  240  may be orthogonal to the second axis. In another instance, louvers  240  may be substantially orthogonal to the second axis (e.g., within a few degrees of orthogonal to the second axis). In one or more embodiments, obscuring the information along the second axis of the display device and within the second threshold angle may be performed in response to determining that the first orientation changes to the second orientation. 
     At  930 , the information along the first axis of the display device may be permitted to be viewed by a person. In one example, the information along axis  260 A of display device  190 A, illustrated in  FIG. 3B , may be permitted to be viewed by the person. In one instance, the anisotropic material may permit the information along axis  260 A of display device  190 A to be viewed by the person. In another instance, louvers  230  may permit the information along axis  260 A of display device  190 A to be viewed by the person. In a second example, the information along axis  260 B of display device  190 B, illustrated in  FIG. 3D , may be permitted to be viewed by the person. In one instance, the anisotropic material may permit the information along axis  260 B of display device  190 B to be viewed by the person. In another instance, louvers  230  may permit the information along axis  260 B of display device  190 B to be viewed by the person. In another example, the information along axis  260 C of display device  190 C, illustrated in  FIG. 3F , may be permitted to be viewed by the person. In one instance, the anisotropic material may permit the information along axis  260 C of display device  190 C to be viewed by the person. In another instance, louvers  230  may permit the information along axis  260 C of display device  190 C to be viewed by the person. In one or more embodiments, permitting the information along the first axis of the display device to be viewed by the person may be performed in response to determining that the first orientation changes to the second orientation. 
     Turning now to  FIG. 10A , a display with multiple zones is illustrated, according to one or more embodiments. As shown, display  190  may be sectioned into zones  1020 A- 1020 I. In one or more embodiments, zone  1020  may function as display  190 , described above. For example, zone  1020  may function as a display  190  within display  190 . For instance, zone  1020  may be or include a virtual display  190  of physical display  190 . 
     In one or more embodiments, light emissions of a zone  1020  may be controlled. In one example, an anisotropic material, of display device  190 , may obscure the information along a first axis (e.g., axis  260 ) of a zone  1020  and within a first threshold angle. In one instance, the anisotropic material may include louvers  230 . In one instance, louvers  230  may be orthogonal to the first axis. In another instance, louvers  230  may be substantially orthogonal to the first axis (e.g., within a few degrees of orthogonal to the first axis). In another example, the anisotropic material, of display device  190 , may obscure the information along a second axis (e.g., axis  250 ) of zone  1020  and within a second threshold angle. In one instance, the anisotropic material may include louvers  240 . In one instance, louvers  240  may be orthogonal to the second axis. In another instance, louvers  240  may be substantially orthogonal to the second axis (e.g., within a few degrees of orthogonal to the second axis). Although zone  1020  is shown to be rectangular, zone  1020  may be or include any shape, according to one or more embodiments. 
     In one or more embodiments, zone  1020  may be for example and/or for illustrative purposes. For example, zone  1020  may not actually physically exist within display device  190 . In one or more embodiments, zone  1020  may be configured and/or implemented via multiple pixels and/or louvers  230  and/or  240 . As illustrated, the threshold angle ϕ T  or may be with reference to an axis  250 , and the threshold angle θ T  may be with reference to an axis  260 . 
     In one or more embodiments, louvers  230  and  240  of zone  1020  may form multiple apertures. In one example, the apertures may be directed. In another example, a centroid and/or a barycenter of the apertures may be determined. In one instance, the centroid and/or the barycenter may determine one or more positions where information from zone  1020  may be obscured from viewing. In another instance, the centroid and/or the barycenter may determine one or more positions where information from zone  1020  may be unobscured from viewing. In one or more embodiments, a display aperture may be smaller near a perimeter of display  190 . For example, a centroid of apertures may be larger near the perimeter of display  190 , which may cause the display aperture may be smaller near the perimeter of display  190 . 
     Turning now to  FIG. 10B , an example of users of a display is illustrated, according to one or more embodiments. As shown, users (e.g., people)  1030 A- 1030 E may utilize display  190 . In one or more embodiments, a user  1030  may utilize one or more zones  1020  based at least on a distance from a display. In one example, user  1030 A may utilize one or more of zones  1020 G- 1020 I, based at least on a distance from display  190 . In a second example, users  1030 B and  1030 C may utilize one or more of zones  1020 D- 1020 F, based at least on a distance from display  190 . In another example, users  1030 D and  1030 E may utilize one or more of zones  1020 A- 1020 C, based at least on a distance from display  190 . 
     Turning now to  FIG. 10C , an example of users that may not utilize a display is illustrated, according to one or more embodiments. In one or more embodiments, one or more users  1030  may not utilize a display, based at least on a distance from the display. For example, users  1030 F and  1030 G may not be able to utilize display  190 , based at least on a distance from display  190 . For instance, zones  1020 A- 1020 I may obscure light emissions from users  1030 F and  1030 G. As previously described, users  1030 D and  1030 E may utilize one or more of zones  1020 A- 1020 C, based at least on a distance from display  190 . 
     Turning now to  FIG. 10D , another example of users of a display is illustrated, according to one or more embodiments. As shown, user  1030 B may be at a distance  1040 A from display  190 , user  1030 D may be at a distance  1040 B from display  190 , and user  1030 C may be at a distance  1040 C from display  190 . As illustrated, user  1030 B may be at a distance  1050 A from a reference side (e.g., a left edge) of display  190 , user  1030 D may be at a distance  1050 B from the reference side of display  190 , and user  1030 C may be at a distance  1050 C from the reference side of display  190 . In one example, display  190  may obscure information of one or more of zones  1020 A- 1020 C and  1020 E- 1020 I from  1030 B. For instance, display  190  may obscure information of one or more of zones  1020 A- 1020 C and  1020 E- 1020 I from a viewer at position  1040 A and  1050 A. In a second example, display  190  may obscure information of one or more of zones  1020 A,  1020 C- 1020 I from user  1030 D. For instance, display  190  may obscure information of one or more of zones  1020 A,  1020 C- 1020 I from a viewer at position  1040 B and  1050 B. In another example, display  190  may obscure information of one or more of zones  1020 A- 1020 E and  1020 G- 1020 I from user  1030 C. For instance, display  190  may obscure information of one or more of zones  1020 A- 1020 E and  1020 G- 1020 I from a viewer at position  1040 C and  1050 C. 
     In one or more embodiments, display  190  may be configured to permit various zones  1020  to be viewed (e.g., unobscured). In one example, user  1030 B may view one or more of zones  1020 D- 1020 F. For instance, one or more of zones  1020 D- 1020 F may be unobscured from a viewer at position  1040 A and  1050 A. In a second example, user  1030 D may view one or more of zones  1020 A- 1020 C. For instance, one or more of zones  1020 A- 1020 C may be unobscured from a viewer at position  1040 B and  1050 B. In a third example, user  1030 B may view one or more of zones  1020 D- 1020 F. For instance, one or more of zones  1020 D- 1020 F may be unobscured from a viewer at position  1040 C and  1050 C. In a fourth example, user  1030 B may view one or more of zones  1020 A,  1020 D, and  1020 G. For instance, one or more of zones  1020 A,  1020 D, and  1020 G may be unobscured from a viewer at position  1040 A and  1050 A. In a fifth example, user  1030 D may view one or more of zones  1020 B,  1020 E, and  1020 H. For instance, one or more of zones  1020 B,  1020 E, and  1020 H may be unobscured from a viewer at position  1040 B and  1050 B. In another example, user  1030 B may view one or more of zones  1020 C,  1020 F, and  1020 I. For instance, one or more of zones  1020 C,  1020 F, and  1020 I may be unobscured from a viewer at position  1040 C and  1050 C. 
     Turning now to  FIG. 11A , an example of method of operating an information handling system is illustrated, according to one or more embodiments. At  1110 , a mode of a display may be determined. For example, a mode of display  190  may be determined. For instance, the mode may include a 360 mode, a 180 mode, a landscape mode, a portrait mode, etc. In one or more embodiments, the mode of the display may obscure information along one or more axes. For example, the mode of the display may obscure information along one or more axes  250  and  260  of display  190 . 
     At  1115 , it may be determined if the mode of the display has changed. If the mode of the display has not changed, the method may proceed to  1110 , according to one or more embodiments. If the mode of the display has changed, a location may be determined at  1120 . In one example, the location may be a physical location. In one instance, the location may be received from user input. In a second instance, the location may be determined via a global positioning system (GPS) receiver device. In a third instance, the location may be determined via a WiFi access point (e.g., a physical location of the WiFi access point). In fourth instance, the location may be determined via a beacon (e.g., a WiFi beacon, a Bluetooth beacon, etc.). In another instance, the location may be determined via trilateration. In another example, the location may be a semantic location. For instance, the semantic location may be determined via a series of physical locations. In one or more embodiments, the location may include an “unknown” location, a “work” location, an “airport” location, and a “home” location, as illustrated in  FIG. 11B . 
     At  1125 , an ambient audio classification may be determined. In one or more embodiments, an ambient audio classification may include a “quiet” ambient audio classification, a “Noisy” ambient audio classification, and a “Speech” ambient audio classification, among others, as shown in  FIG. 11B . Example ambient audio classifications with associated sound pressure levels are shown in Table1. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                 Ambient Audio Classification 
                 Sound pressure level (dB) 
               
               
                   
                   
               
             
            
               
                   
                 Quiet 
                 10-30 
               
               
                   
                 Speech 
                 40-60 
               
               
                   
                 Noisy 
                 60-80 
               
               
                   
                 Very Noisy 
                 Above 80 
               
               
                   
                   
               
            
           
         
       
     
     At  1130 , a buffer may be updated. For example, a buffer  1160  ( FIG. 11B ) may be updated. In one or more embodiments, the buffer may include a first-in, first-out data structure. For example, buffer  1160  may be or include a queue. At  1135 , it may be determined if any buffer is at capacity. For example, it may be determined if any buffer  1160  is at capacity (e.g., full). If any buffer is at capacity, a majority vote may be determined, at  1140 . Otherwise, the method may proceed to  1110 , according to one or more embodiments. In one or more embodiments, the majority vote may be utilized in a machine learning process. For example, the machine learning process may determine a display mode to be utilized at a location based at least on ambient sounds. Although a majority vote machine learning process is described, any machine learning process and/or method may be utilized. 
     Turning now to  FIG. 12 , an example method of operating displays is illustrated, according to one or more embodiments. At  1210 , a media source may be determined. For example, the media source may be or include a video, an image, or a document, among others. At  1215 , a classification may be determined. For example, the classification may be or include “no restriction”, “restricted”, “internal use”, or “critical handling”, among others. 
     At  1220 , it may be determined if the media is for a zone. In one or more embodiments, determining if the media is for a zone may be based at least on the media source and/or the media classification. If the media is for a zone, a zone may be determined at  1225 . In one or more embodiments, determining the zone may be based at least on the media source and/or the media classification. For example, the determined zone may include a zone of zones  1020 A- 1020 I. At  1230 , the media may be displayed via the zone. For example, the media may be displayed via the zone determined at  1225 . If the media is not for a zone, a display mode may be determined at  1235 . In one or more embodiments, determining the display mode may be based at least on the media source and/or the media classification. For example, the mode may include a 360 mode, a 180 mode, a landscape mode, a portrait mode, etc. At  1240 , the media may be displayed via the mode. For example, display  190  may display the media via the mode determined at  1235 . In one or more embodiments, the mode determined at  1235  may be associated with a configuration that obscures information along one or more axes of the display. For example, the determined mode may obscure information along one or more of axes  250  and  260  of display  190 . 
     Turning now to  FIG. 13 , an example method of operating zones of a display is illustrated, according to one or more embodiments. At  1310 , first information may be displayed via first light emissions of a display device and via a first zone. At  1315 , second information may be displayed via second light emissions of the display device and via a second zone. In one or more embodiments, the second information may be different from the first information. At  1320 , the first information may be obscured along a first axis of the first zone and within a first of the first zone and within a first threshold angle of the first zone. For example, the first information along axis  260  of zone  1020 A and within θ T  may be obscured. In one or more embodiments, an anisotropic material, of the display device, may obscure the first information along the first axis of the first zone and within the first threshold angle of the first zone. For example, the anisotropic material may include louvers  230 . In one instance, louvers  230  may be orthogonal to the first axis of the first zone. In another instance, louvers  230  may be substantially orthogonal to the first axis of the first zone (e.g., within a few degrees of orthogonal to the first axis of the first zone). In one or more embodiments, a portion of louvers  230  may be associated to zone  1020 A. For example, a portion of louvers  230  may be associated to zone  1020 A may be assigned to zone  1020 A. 
     At  1325 , the second information may be obscured along a first axis of the second zone and within a first of the second zone and within a first threshold angle of the second zone. For example, the second information along axis  260  of zone  1020 F and within θ T  may be obscured. In one or more embodiments, an anisotropic material, of the display device, may obscure the second information along the first axis of the second zone and within the first threshold angle of the second zone. For example, the anisotropic material may include louvers  230 . In one instance, louvers  230  may be orthogonal to the first axis of the second zone. In another instance, louvers  230  may be substantially orthogonal to the first axis of the second zone (e.g., within a few degrees of orthogonal to the first axis of the second zone). In one or more embodiments, a portion of louvers  230  may be associated to zone  1020 F. For example, a portion of louvers  230  may be associated to zone  1020 F may be assigned to zone  1020 F. In one or more embodiments, the first threshold angle of the second zone may be different from or the same as the first threshold angle of the first zone. 
     At  1330 , the first information along a second axis of the first zone and within a second threshold angle of the first zone may be obscured. For example, the first information along axis  250  of the first zone and within ϕ T  may be obscured. In one or more embodiments, an anisotropic material may obscure the information along the second axis of the first zone and within the second threshold angle of the first zone. For example, the anisotropic material may include louvers  240 . In one instance, louvers  240  may be orthogonal to the second axis of the first zone. In another instance, louvers  240  may be substantially orthogonal to the second axis of the first zone (e.g., within a few degrees of orthogonal to the second axis of the first zone). In one or more embodiments, a portion of louvers  240  may be associated to zone  1020 A. For example, a portion of louvers  240  may be associated to zone  1020 A may be assigned to zone  1020 A. In one or more embodiments, the first information along the second axis of the first zone and within the second threshold angle of the first zone may be obscured in response to determining a media type and/or a media classification. 
     At  1335 , the second information along a second axis of the second zone and within a second threshold angle of the second zone may be obscured. For example, the second information along axis  250  of the second zone and within ϕ T  may be obscured. In one or more embodiments, an anisotropic material may obscure the information along the second axis of the second zone and within the second threshold angle of the second zone. For example, the anisotropic material may include louvers  240 . In one instance, louvers  240  may be orthogonal to the second axis of the second zone. In another instance, louvers  240  may be substantially orthogonal to the second axis of the second zone (e.g., within a few degrees of orthogonal to the second axis of the second zone). In one or more embodiments, a portion of louvers  240  may be associated to zone  1020 F. For example, a portion of louvers  240  may be associated to zone  1020 F may be assigned to zone  1020 F. In one or more embodiments, the second information along the second axis of the second zone and within the second threshold angle of the second zone may be obscured in response to determining a media type and/or a media classification. In one or more embodiments, the second threshold angle of the second zone may be different from or the same as the second threshold angle of the first zone. 
     At  1340 , the first information along the first axis of the first zone may be permitted to be viewed by a person and/or another person. For example, the first information along axis  260  of the first zone may be permitted to be viewed by the person and/or the other person. At  1345 , the second information along the first axis of the second zone may be permitted to be viewed by the person and/or another person. For example, the second information along axis  260  of the second zone may be permitted to be viewed by the person and/or the other person. 
     In one or more embodiments, one or more of the method and/or process elements and/or one or more portions of a method and/or processor elements may be performed in varying orders, may be repeated, or may be omitted. Furthermore, additional, supplementary, and/or duplicated method and/or process elements may be implemented, instantiated, and/or performed as desired, according to one or more embodiments. Moreover, one or more of system elements may be omitted and/or additional system elements may be added as desired, according to one or more embodiments. 
     In one or more embodiments, a memory medium may be and/or may include an article of manufacture. For example, the article of manufacture may include and/or may be a software product and/or a program product. For instance, the memory medium may be coded and/or encoded with processor-executable instructions in accordance with one or more flowcharts, systems, methods, and/or processes described herein to produce the article of manufacture. In one or more embodiments, one or more devices and/or one or more systems described herein may include circuitry that is configured in accordance with one or more flowcharts, systems, methods, and/or processes described herein. In one example, the circuitry may include a processor and/or a memory medium coded and/or encoded with processor-executable instructions in accordance with one or more flowcharts, systems, methods, and/or processes described herein. In another example, the circuitry may include other circuitry configured in accordance with one or more flowcharts, systems, methods, and/or processes described herein. 
     The above disclosed subject matter is to be considered illustrative, and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments which fall within the true spirit and scope of the present disclosure. Thus, to the maximum extent allowed by law, the scope of the present disclosure is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description.