Display device, electronic device and display control method for screen

The present disclosure relates to a display device. The display device includes: a display module, which comprises at least two layers of display panels; and at least two controllers, which are connected to respective display panels of the at least two layers of display panels of the display module, each controller of the at least two controllers is configured to, in an operating state, control one respective display panel connected to each controller to display.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is based upon and claims the benefit of priority of Chinese patent application No. 201810077532.3 filed on Jan. 26, 2018, the contents of which are incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of display technology. The present disclosure for example relates to a display device, an electronic device and a display control method for a screen.

BACKGROUND

With the development of the science and technology, display devices are widely used in daily life of people and play an indispensable role. At the same time, with the rapid development of the semiconductor technology, a crucial leap and promotion has been made to the display devices with respect to visual representation.

Most of the display devices are equipped with a one-layer display screen, which has excellent characteristics such as absence of dead angle, high definition, high resolution, wide temperature range and well shock resistance. The relative information of the display device is displayed. Therefore, the visual experience of the user is enhanced and the service life of the display device is extended.

However, in the case of the one-layer display screen, when a failure occurs on the screen or the requirements on display of the user are not satisfied, the user experience of the electronic device containing the display device is unsatisfactory.

SUMMARY

Below is the summary of the subject matter which will be described herein in detail. The summary is not to limit the protection scope of the claims. The present disclosure provides a display device, an electronic device and a display control method for a screen, so as to address the problem of unsatisfactory user experience when a failure occurs on the screen or the requirements on display of the user are not satisfied.

An embodiment provides a display device, which includes: a display module, which includes at least two layers of display panels; and at least two controllers, which are connected to respective display panels of the at least two layers of display panels of the display module, each controller of the at least two controllers is configured to, in an operating state, control one respective display panel connected to the each controller to display.

An embodiment further provides an electronic device, which includes the display device provided by any embodiment.

An embodiment further provides a display control method for a screen, which is applied in the display device provided by any embodiment, the method including:

when a master controller switches from an operating state to a hibernating state, the master controller sends a screen turn-off instruction to a first display panel and triggers a slave controller to switch from the hibernating state to the operating state; and when the master controller switches from the hibernating state to the operating state, the master controller sends a screen turn-on instruction to the first display panel and triggers the slave controller to switch from the operating state to the hibernating state, the slave controller sends the screen turn-on instruction to a second display panel when the slave controller switches from the hibernating state to the operating state, and the slave controller sends the screen turn-off instruction to the second display panel when the slave controller switches from the operating state to the hibernating state.

In the case where a specific display panel cannot display normally or satisfy the requirements on display of the user, according to the embodiments of the present disclosure, at least two controllers are respectively connected to at least two layers of display panels having different power consumption and each controller in an operating state controls one respective display panel connected to this controller to display, so as to enhance the user experience.

Other aspects can be understood will be apparent upon reading and understanding the drawings and the detailed descriptions.

DETAILED DESCRIPTION

FIG. 1is a structure diagram of a display device provided by an embodiment 1. The display device includes a display module110and at least two controllers120. The display module110includes at least two layers of display panels111. The at least two controllers120are connected to respective display panels of at least two layers of display panels111of the display device110. Each controller of at least two controllers120is configured to, in an operating state, control one respective display panel111connected to the controller to display.

Different display panels111may be combined in a bonding process to form the display module. In addition, after the bonding process, a display panel located on the upper layer is highly transparent. In this way, when a display panel located on the lower layer displays information, the display of the information by the display panel on the lower layer is not affected by the display panel on the upper layer, thereby guarantee the display effect of the display panel on the lower layer.

Controllers120and display panels111may be connected through a bus.

In practical applications, in the case where a display panel111cannot display normally or cannot satisfy the requirements on display of a user, the controllers120controls the switching between different display panels for display, so as to enhance the user experience.

On the basis of the solution in the embodiment described above, in an embodiment, different display panels of the at least two layers of display panels111of the display module110have different power consumptions.

In practical applications, the controllers120controls the switch between the display panels111of different power consumptions for displaying relative information. As such, on the premise of satisfying the requirements on display of the user, the power consumption of the display device is reduced and the stand-by time of the display device is extended, thereby achieving the effect of reducing power consumption and saving energy.

FIG. 2is a structure diagram of another display device provided by the embodiment 1. In an embodiment, the display module210includes a first display panel211and a second display panel212. The light emitting surface of the first display panel211faces a surface of the second display panel212opposite to the light emitting surface of the second display panel212. The power consumption of the second display panel212is lower than the power consumption of the first display panel211. The controllers include a master controller221and a slave controller222. The master controller221is connected to the first display panel211. The slave controller222is connected to the second display panel212. The master controller221is configured to, in the operating state, control the first display panel211to display. The slave controller222is configured to, in the operating state, control the second display panel212to display. The second display panel212is highly transparent, such that the display effect of the first display panel211is guaranteed when the first display panel211displays.

In practical applications, in the case where the use of the first display panel211with higher power consumption for displaying relative information is unnecessary, the slave controller222is in the operating state and controls the second display panel212to display. In the case of higher requirements on display such as a required resolution higher than a preset value, the master controller221is in the operating state and controls the first display panel211to display. The use of the display device described above enables that, on the premise of satisfying the requirements on display of the user, the power consumption of the display device is reduced and the stand-by time of the display device is extended, thereby achieving the effect of reducing power consumption and saving energy.

On the basis of the display module of the display device inFIG. 2, in an embodiment,FIG. 3is a structure diagram of another display module provided by the embodiment 1. The display module210includes a first display panel211and a second display panel212.

The first display panel211includes an organic light emitting display panel211. The second display panel212includes a liquid crystal display (LCD) panel212.

The organic light emitting display panel211and the LCD panel212are independent of each other in the time-division display. The LCD panel212may be transparent and does not include a backlight. If the LCD panel212has a backlight, the backlight will shield the organic light emitting display panel211on the lower layer. Meanwhile, a backlight is necessary for the LCD panel212to display normally. In view of the fact that the organic light emitting display panel211generally includes a metal layer serving as the metal cathode, the present disclosure proposes to use the metal layer in the organic light emitting display panel211as the backlight of the LCD panel212. This ingenious arrangement can implement the time-division display of two display panels.

In an embodiment, the organic light emitting display panel211and the LCD panel212may be combined in a bonding process to form the display module.

In an embodiment, the organic light emitting display panel211includes: a first substrate310; organic light emitting structures320, which are arranged in an array at one side of the first substrate310, each organic light emitting structure320includes a hole transport layer321, an organic emissive layer322, an electron transport layer323and a metal layer324which are stacked in sequence.

The LCD panel212is attached to the metal layer324of the organic light emitting display panel211, such that the metal layer324serves as the backlight of the LCD panel212. The ambient light reaches the metal layer324and is reflected by the metal layer324. The ambient light reflected by the metal layer324serves as the light source of the LCD panel212.

In an embodiment, the organic light emitting structures320include at least one red organic light emitting structure, at least one green organic light emitting structure and at least one blue organic light emitting structure. The red organic light emitting structure emits red light. The green organic light emitting structure emits green light. The blue organic light emitting structure emits blue light.

In an embodiment, since the red organic light emitting structure, the green organic light emitting structure and the blue organic light emitting structure may be powered to different luminance levels and with different combinations (e.g., one organic light emitting structure is powered, or two organic light emitting structures are powered, or all organic light emitting structures are powered), the organic light emitting structure320represents various colors. The light emitting of the organic light emitting structure320is an injected light emitting. Briefly, electrons injected from the cathode and holes injected from the anode interact on the emissive layer and form excitons. The excitons return from an excited state to a ground state, the energy difference between the excited state and the ground state is released in the form of photons.

In an embodiment, the organic light emitting display panel110may include an active-matrix organic light emitting diode (AMOLED) panel.

The AMOLED is made of organic illuminants. Thousands of illuminants are disposed on the substrate of the screen in a specific manner. Each illuminant emits light of one color selected from red, green and blue. When a voltage is applied on an illuminant, the illuminant emits red light, or green light, or blue light. The change of the voltage is also performed by means of a thin film transistor (TFT). The portions of three primary colors are adjusted to form various colors.

The OLED, i.e., organic light emitting diode (also referred as organic electroluminescent device), has a basic structure including an anode, a cathode and an emissive layer which correspond to each pixel region. When the voltage is applied on the anode and the cathode, holes moves through the hole transport layer to the emissive layer and electrons moves through the electron transport layer to the emissive layer. The holes and the electrons recombine in the emissive layer. The excitons in the emissive material moves from the excited state to the ground state. The organic light emitting structures of different colors have emissive layers made of different emissive materials. The emissive material corresponding to the respective organic light emitting structures of different colors emit light of different colors under the voltages applied on the anodes and the cathodes.

In the related art, a number of mature AMOLED products exist. In these products, a layer of circular polarizer is usually attached to the upper side of the metal layer in the AMOLED product, so as to filter out noise and improve the contrast ratio of the AMOLED product. Therefore, in order to reduce the procedure for implementing the embodiment and reduce the cost of development, in the embodiment, the organic light emitting display panel211of the embodiment may be formed by removing the circular polarizer from an existing AMOLED product.

In one embodiment, requirements may be elicited when purchasing AMOLED screens of a manufacturer, such that the manufacturer removes the process of attachment of the circular polarizer during the production process, so as to directly obtain the AMOLED screens without the circular polarizer, i.e., the organic light emitting display panel211. In the embodiment, the organic light emitting display panel211consisting of AMOLEDs may display in colors, and the LCD panel212may display in black and white. For example, in the case of the display of time and date, the LCD panel212is used to display; in the case of the display of a WeChat message, the organic light emitting display panel211is used to display.

Those skilled in the art understands through experiments that, the use of the LCD panel212to display contents, which do not need to be displayed in colors, can minimize power consumption and save most energy. For example, as for an electronic device (e.g., smartwatch or smart bracelet) containing a display device and having a small battery capacity and short battery life, the display module210described above may play a more important role.

In general, the cost of the LCD panel212is low. The present embodiment introduces the LCD panel212to substantially reduce the power consumption of the device without significantly increasing the cost of production, thereby apparently improving the user experience and product competitiveness.

In an embodiment, the LCD panel212includes a second substrate330, a crystal layer340and a third substrate350, the second substrate330is attached to the metal layer324of the organic light emitting display panel, the second substrate330and the third substrate350are transparent.

With the arrangement describe above, the LCD panel212is a transparent panel. As such, when the organic light emitting display panel211on the lower layer operates, the LCD panel212has a minimal effect on the organic light emitting display panel211. Although part of the contrast ratio and the degree of saturation of the organic light emitting display panel211is sacrificed, the sacrificed part may be compensated using software.

The LCD panel212may include a film compensation super twisted nematic (FSTN) panel.

Such LCD display panel212is covered by a layer of compensation film. The compensation film is usually made of polymer and is birefringent. When a ray of ordinary light and a ray of extraordinary light pass thought the compensation film, an additional phase difference is generated. The additional phase difference delays or compensates the phase of the ordinary light and the phase of the extraordinary light, so as to change the inference color of the polarized light. The compensation film of the FSTN may be located either under the polarizer or on the polarizer. There may be one compensation film or two compensation films. In some cases, the lower compensation film of a system of two compensation films may also serve as a collimator, and the upper compensation film also serves as a scattering film, such that the view angle of the LCD is increased without increasing the response time of the LCD.

The FSTN panel is a super twisted nematic (STN) panel with a thin compensation film and is capable of displaying in black and white. The FSTN panel has restrict requirements on the delay and orientation of the thin polymeric film. For the relationship between the contrast ratio and the view angle, the view angle and contrast ratio of a STN panel in a black-white mode is much better than those of the STN panel in a yellow-green mode. The contour lines representing a contrast ratio greater than 5 covers a broader region, and the contour lines representing a contrast ratio greater than 10 also covers a region broader than that of the STN panel in the yellow-green mode.

On the basis of the display module inFIG. 3, in an embodiment,FIG. 4is a structure diagram of another display module provided by the embodiment 1. The display module210further includes a transparent glass213. The transparent glass213is arranged on the side of the light emitting surface of the second display panel212.

On the basis of the display module inFIG. 3, in an embodiment,FIG. 5is a structure diagram of another display module provided by the embodiment 1. The display module210further includes a touch screen214. The touch screen214is arranged on the side of the light emitting surface of the second display panel212. The display panel214is connected to the master controller (not shown), the touch screen214is used to acquire touch-position information and send the touch-position information to the master controller.

The touch screen214arranged in the display module210enables the interaction between the user and the display device, and enables the user to operate the display device more conveniently.

On the basis of the display device inFIG. 2, in an embodiment,FIG. 6is a structure diagram of another display device provided by the embodiment 1. In the display device, the master controller221is connected to the slave controller222, the master controller221is configured to trigger the slave controller222to enter the operating state when the master controller221switches from the operating state to a hibernating state, and to trigger the slave controller222to enter the hibernating state when the master controller221switches from the hibernating state to the operating state.

In an embodiment, a communication connection is established between the master controller221and the slave controller222. When it is unnecessary to use the first display panel211with high power consumption to display, the master controller221switches from the operating state to the hibernating state and triggers the slave controller222to switch from the hibernating state to the operating state. At this time, the second display panel212displays and the first display panel211does not display. When the display effect of the second display panel212cannot reach the requirements on display, the master controller221switches from the hibernating state to the operating state and triggers the slave controller222to switch from the operating state to the hibernating state. At this time, the first display panel211displays and the second display panel212does not display.

In practical applications, the master controller221directly or indirectly controls the first display panel211and the second display panel212to display or not. Therefore, on the premise of satisfying the requirements on display of the user, the power consumption of the display device is reduced and the stand-by time of the display device is extended, thereby achieving the effect of reducing power consumption and saving energy.

In an embodiment, a master operating system runs on the master controller221and a slave operating system runs on the slave controller222. The power consumption of the slave operating system is lower than the power consumption of the master operating system.

In an embodiment, the master operating system is Android OS and the slave operating system is a real time operating system (RTOS). The power consumption of the RTOS is lower than the power consumption of the Android OS.

In practical applications, the Android OS running on the master controller controls the master controller221to switch between the operating state and the hibernating state, and to, in the operating state, control the first display panel211to display relative information of the display device. The master controller221is further configured to trigger the slave controller222, so as to control the slave controller222to switch between the operating state and the hibernating state. When the slave controller222is in the operating state, the RTOS running on the slave controller222controls the second display panel212to display the relative information of the display device.

When it is unnecessary to user the first display panel211with high power consumption to display the relative information of the display device, the use of the second display panel212with low power consumption for displaying the relative information of the display device can reduce the power consumption of the display device. In addition, since the RTOS, which has a power consumption lower than that of the Android OS, controls the second display panel212to process corresponding data and display the relative information of the display device, the power consumption of the display device is further reduced and the stand-by time of the display device is further extended, thereby achieving the effect of reducing power consumption and saving energy.

In an embodiment, the display device is a smartwatch or a smart bracelet.

FIG. 7is a structure diagram of a display device provided by an embodiment 2. On the basis of the solution of the embodiments described above, the display device further includes a temperature sensor230, the temperature sensor230is connected to the master controller221, the temperature sensor230is used to detect the environmental temperature of the environment and send the environmental temperature to the master controller221, the master controller221cooperates with the slave controller222to control the time-division display of the first display panel211and the second display panel212based on the environmental temperature.

In practical applications, if the environmental temperature of the environment of the display device is too high, the display module210consisting of the first display panel211and the second display panel212has a short response time. As such, the switch between the first display panel211and the second display panel212leads to a case of blank screen where both the first display panel211and the second display panel212do not display (i.e., one has been turned off and the other has not been turned on). On the contrary, if the environmental temperature of the environment of the display device is too low, the display module210consisting of the first display panel211and the second display panel212has a long response time. As such, the switch between the first display panel211and the second display panel212leads to a case of ghosting where both of the first display panel211and the second display panel212display at the same time (i.e., one display panel has the displayed content unfaded and the other display panel has been turned on).

Therefore, on the basis of the solution of the embodiments described above, a temperature sensor230is added to detect the environmental temperature of the environment of the display device. The master controller221receives the environmental temperature detected by the temperature sensor230and cooperates with the slave controller222to control the time-division display of the first display panel211and the second display panel212.

The temperature sensor230may be arranged close to an outermost display panel, so as to enhance the confidence level in the detection of environmental temperature of the environment of the display device.

In an embodiment, the master controller221acquires the environmental temperature detected by the temperature sensor230. When the display device is in an environment of high temperature, the switch time is shortened based on the correspondence between the environmental temperature and the switch time between two display panels. As such, the case of blank screen where one display panel has been turned off and the other display panel has not been turned on is avoided. When the display device is in an environment of low temperature, the switch time is extended based on the correspondence between the environmental temperature and the switch time between two display panels. As such, the case of ghosting where one display panel has the displayed content unfaded and the other display panel has been turned on is avoided.

In an embodiment, the display device is a smartwatch or a smart bracelet.

The present embodiment further provides an electronic device, which includes the display device according to any embodiment described above.

FIG. 8is a flow chart of a display control method for screen provided by an embodiment 4. The embodiment is adapted to the case of time-division display of the display device provided by any embodiment. The method may be implemented by a display control device for screen. The display control device for screen is embodied by software, hardware or the combination thereof, and is arranged in the electronic device including the display device provided by any embodiment. For example, the electronic device may be a wearable device such as smartwatch or smart bracelet. The method includes step S110and step S120described below.

In step S110, when a master controller switches from an operating state to a hibernating state, the master controller sends a screen turn-off instruction to a first display panel connected to the master controller and triggers a slave controller to switch from the hibernating state to the operating state.

In step S120, when the master controller switches from the hibernating state to the operating state, the master controller sends a screen turn-on instruction to the first display panel connected to the master controller and triggers the slave controller to switch from the operating state to the hibernating state.

When the slave controller switches from the hibernating state to the operating state, the slave controller sends a screen turn-on instruction to a second display panel connected to the slave controller. When the slave controller switches from the operating state to the hibernating state, the slave controller sends a screen turn-off instruction to the second display panel connected to the slave controller.

In the present embodiment, since the master controller and the slave controller respectively control the first display panel and the second display panel to switch between the operating state and the hibernating state, when one display panel fails and cannot display normally, the switch from the failed display panel to the other display panel guarantees the normal operation of the display device, so as to enhance the user experience.

A number of devices use organic display panels as their display screens. Organic light emitting diodes are widely used in display devices of electronic devices for their small size and well display effect in colors. In particular, the OLED display screen is a preferred option for the wearable device. However, a device which uses only the OLED display screen has an enhanced system power consumption. In the use of smart terminals, in some application scenarios, a small amount of information needs to be displayed. In an exemplary embodiment, when a user wears a wearable device and participate in outdoor sports, only relative information such as time, date or the number of steps needs to be displayed, and other information is not required. If the OLED display screen is used all the time, it will cause unnecessary power consumption. Furthermore, if there is no place to recharge the device, the use of the wearable device by the user may be affected. In order to address this problem, the present embodiment uses a dual screen consisting of the LCD panel and the organic light emitting display panel. In other words, a TN panel is disposed on the OLED panel. The TN panel is a basic LCD panel having a low cost and widespread application and is widely used in popular mid-to-low end LCDs in the market. After improvement, a film (i.e., compensation film) is added on the TN panel to compensate the small view angle of the TN panel. The existing improved TN panel may have a view angle up to 160°. This is of course an extreme value detected by the manufacturer under a contrast ratio of 10:1. In fact, when the contrast ratio decreases to 100:1, distortion and even color cast occur in the image. Since the TN panel has a low cost, such dual screen has a relatively high cost performance. Optionally, a film compensation super twisted nematic (FSTN) display panel (i.e., FSTN LCD screen) and an active-matrix organic light emitting diode (AMOLED) screen are used. Since the AMOLED is self-luminous, flexible, extreme thin and has a wide color gamut, the AMOLED has particular advantage when applied in the wearable device.

The steps of the display control method for screen will be described below in detail with reference to the structure diagrams of the display device and the display module provided in the embodiments described above.

When a display device is used, a user may select a display panel to display according his requirements. The processing system of the display device may also switch between display panels according actual requirements. When it is unnecessary to use the first display panel211with high power consumption to display relative information of the display device, the master controller221switches from the operating state to the hibernating state. At the same time, the master controller221sends a screen turn-off instruction to the first display panel211and triggers the slave controller222to switch from the hibernating state to the operating state. Correspondingly, the slave controller222sends a screen turn-on instruction to the second display panel212connected to the slave controller222, and the second display panel212displays the relative information of the display device.

When the display effect of the second display panel212with low power consumption cannot satisfy the requirements of the user, the master controller221switches from the hibernating state to the operating state. At the same time, the master controller221sends a screen turn-on instruction to the first display panel211and triggers the slave controller222to switch from the operating state to the hibernating state. Correspondingly, the slave controller222sends a screen turn-off instruction to the second display panel, and the first display panel211displays the relative information of the display device.

It should be understood that, when the display device is powered and operates normally, the master controller221and the slave controller222are respectively in the operating state and the hibernating state, alternatively. In other words, when the master controller221is in the operating state, the slave controller222is in the hibernating state; and when the master controller221is in the hibernating state, the slave controller222is in the operating state. There is a definite division of work between the master controller221and the slave controller222, that is, the master controller221and the slave controller222alternatively controls the system of the display device, avoiding the occurrence of chaos in the display by the display device.

In the embodiment, the execution sequence of the steps S110and S120is not limited. The step S110may be executed before or after the step120.

When the master controller221switches from the operating state to the hibernating state, the requirement for the use of the second display panel212with low power consumption is thus satisfied. In an example, the second display panel212is the LCD panel. Since the LCD panel may display with a lowered power consumption, the LCD panel may be used in the case of no need to display too much contents. Optionally, the trigger condition for the master controller221to switch from the operating state to the hibernating state may be any of the followings: an operation instruction inputted by the user is detected to use the second display panel212, the display device is detected to be in a sport mode or a charging mode, the display device is detected to have a light intensity equal to or greater than a preset intensity threshold, and the display device is detected to has a stand-by time greater than a preset time threshold.

The trigger condition for the master controller221to switch from the hibernating state to the operating state may be any of the followings: an operation instruction inputted by the user is detected to use the first display panel211(for example, the first display panel may be an organic display panel), and a user trigger event is detected to have a complexity greater than a preset complexity threshold. The input operation of the user may be a motion gesture inputted by the user, such as lifting a wrist, shaking an arm. The different numbers of the motion gestures may have different definitions. For example, shaking the arm once means that the user wants to user the LCD panel212as the display screen, and shaking the arm twice means that the user wants to user the organic display panel211as the display screen. The user may also input the instruction through a mechanical key of the display device. For example, the user may user the crown of the smartwatch to input the instruction. The switch of the screen may also be performed according to the mode of the display device. For example, when the smartwatch is in the sport mode or the charging mode, if the user does not need to view the applications, the smartwatch may switch to the LCD panel212to display.

In addition, the TN panel has the characteristic that the contrast ratio of the displayed image increases as the light intensity increases. In other words, when the TN panel displays in black and white, the displayed image is clearer. When the light intensity of the environmental light is large, the brightness of the OLED panel need to be adjusted to a large value, which will increase a large power consumption. Therefore, when the light intensity is high, the TN panel is used to display. The trigger condition for the master controller221to switch from the operating state to the hibernating state may be the fact that the light intensity exceeds a preset intensity threshold. The preset intensity threshold may be adjusted according to the attribute of the display panels, or may be set according to actual requirements. The trigger condition for the master controller221to switch from the hibernating state to the operating state may be the fact that the complexity of the user trigger event exceeds the preset complexity threshold.

In addition, all possible trigger events may be evaluated in advance with respect to the complexity. The complexity is determined according to the complexity of the image to be displayed. The trigger events may include viewing time, listening to a music or broadcast, running an application, etc. The events such as “viewing time” and “viewing whether” are defined to be events with low complexity. The events such as “running an application” are defined to be events with high complexity. When the complexity of an event exceeds the preset complexity threshold, the event has higher requirements on the display. For example, it is necessary to user the OLED panel to display in the case where the user runs the WeChat on the smartwatch.

The OLED panel may serve as the first display panel211, and the TN penal may serves as the second display panel212.

In the embodiment, when the master controller switches from the operating state to the hibernating state, the master controller sends the screen turn-off instruction to the first display panel and triggers the slave controller to switch from the hibernating state to the operating state. The slave controller controls the second display panel to be turned on. When the master controller switches from the hibernating state to the operating state, the master controller sends the screen turn-on instruction to the first display panel and triggers the slave controller to switch from the operating state to the hibernating state. The slave controller controls the second display panel to be turned off. This solution addresses the problem of high power consumption and short stand-by time of the display device. Therefore, on the premise of satisfying the requirements on display, the stand-by time of the display device is extended, achieving the effect of reducing power consumption and saving energy. Moreover, the user can select the panel to display according to the intention, such that the user experience is improved and the actual requirements of the user is better satisfied by the product.

On the basis of the solution of the embodiments described above, in an embodiment, after the master controller221triggers the slave controller to enter the operating state, the master controller221sends basic information to be displayed to the slave controller222; the basic information to be displayed is information to be displayed by the second display panel212in the control of the slave controller222after the slave controller222enters the operating state, the basic information to be displayed includes at least one of the followings: system time, system date, data on vital signs. The data on vital signs may be steps, heart rate, etc.

On the basis of the solution of the embodiments described above, in an embodiment, if touch-position information sent by a touch screen214is received by the master controller221in the hibernating state, the master controller221switches from the hibernating state to the operating state.

When the master controller221is in the hibernating state, if the user touches the touch screen214of the display device, the master controller221of the display device receives the touch-position information from the touch screen214. At this time, the master controller221needs to perform operations such as locating the touch. Therefore, the master controller221connected to the touch screen214switches from the hibernating state to the operating state.

FIG. 9is a structure diagram of a display control device for screen provided by an embodiment 5. The embodiment is adapted to the case of time-division display of the display device provided by any embodiment. The display control device for screen includes a first control module410and a second control module420.

The first control module410is configured to, when the master controller switches from the operating state to the hibernating state, sends a screen turn-off instruction to the first display panel connected to the master controller, and triggers the slave controller to switch from the hibernating state to the operating state.

The first control module410is also configured to, when the master controller switches from the hibernating state to the operating state, sends a screen turn-on instruction to the second display panel connected to the master controller, and triggers the slave controller to switch from the operating state to the hibernating state.

The second control module420is configured to send a screen turn-on instruction to the second display panel connected to the slave controller when the slave controller switches from the hibernating state to the operating state and to send a screen turn-off instruction to the second display panel connected to the slave controller when the slave controller switches from the operating state to the hibernating state.

In the embodiment, when the master controller switches from the operating state to the hibernating state, the master controller uses the first control module to send a screen turn-off instruction to the first display panel connected to the master controller and to trigger the slave controller to switch from the hibernating state to the operating state. The slave controller uses the second control module to send a screen turn-on instruction to the second display panel connected to the slave controller. On the contrary, when the master controller switches from the hibernating state to the operating state, the master controller uses the first control module to send a screen turn-on instruction to the first display panel connected to the master controller and to trigger the slave controller to switch from the operating state to the hibernating state. The slave controller uses the second control module to send a screen turn-off instruction to the second display panel connected to the slave controller.

Through the solution described above, in the case where one display panel of the display device fails to display normally or fails to satisfy the requirements on display of the user, the first control module and the second control module may be used to respectively control the first display panel and the second display panel to perform time-division display, improving the user experience.

On the basis of the solution of the embodiments described above, in an embodiment, the power consumption of the second display panel is lower than the power consumption of the first display panel.

In the embodiment, when the master controller switches from the operating state to the hibernating state, the first control module sends a screen turn-off instruction to the first display panel and triggers the slave controller to switch from the hibernating state to the operating state. The second controller module sends a screen turn-on instruction to the second display panel to control the second display panel to display. On the contrary, when the master controller switches from the hibernating state to the operating state, the first control module sends a screen turn-on instruction to the first display panel and triggers the slave controller to switch from the operating state to the hibernating state. The second control module sends a screen turn-off instruction to the second display panel to control the second display panel to be turned off. This solution solves the problem of high power consumption and short stand-by time of the display device. Therefore, on the premise of satisfying the requirements on display, the stand-by time of the display device is extended, thereby achieving the effect of reducing power consumption and saving energy. Moreover, the user can select the panel to display according to the intention, such that the user experience is improved and the actual requirements of the user is better satisfied by the product.

On the basis of the solution of the embodiments described above, in an embodiment, the display control device for screen further includes: a sending module, which sends the basic information to be displayed to the slave controller; the basic information to be displayed is information to be displayed by the second display panel in the control of the slave controller after the slave controller enters the operating state, the basic information to be displayed includes at least one of the followings: system time, system date, data on vital signs.

On the basis of the solution of the embodiments described above, in an embodiment, the first control module410is further configured to switch from the hibernating state to the operating state when the master in the hibernating state receives touch-position information from the touch screen.

The first control module410and the sending module correspond to the master controller, while the second control module420corresponds to the slave controller.

The display control method for screen described above is capable of implementing the display control method for screen provided by any embodiment, has function modules corresponding to the functions of the display control method for screen, and achieves the effects corresponding to the functions of the display control method for screen.

The present embodiment further provides a computer readable storage medium, on which a computer program is stored. The computer program, when executed by the display control device for screen, implements the display control device provided by the embodiment. The method includes: when a master controller switches from an operating state to a hibernating state, the master controller sends a screen turn-off instruction to a first display panel connected to the master controller and triggers a slave controller to switch from the hibernating state to the operating state; when the master controller switches from the hibernating state to the operating state, the master controller sends a screen turn-on instruction to the first display panel connected to the master controller and triggers the slave controller to switch from the operating state to the hibernating state; when the slave controller switches from the hibernating state to the operating state, the slave controller sends a screen turn-on instruction to a second display panel connected to the slave controller, and when the slave controller switches from the operating state to the hibernating state, the slave controller sends a screen turn-off instruction to the second display panel connected to the slave controller.

On the basis of the described implementations above, those skilled in the art can clearly understand that, the embodiment may be implemented in the form of software and necessary general-purpose hardware, or in the form of hardware. Based on this understanding, the solution of the present embodiment may be embodied in the form of a software product, which may be stored in a computer readable storage medium, such as floppy disk, read-only memory (ROM), random access memory (RAM), flash disk, hard disk or compact disk (CD) of a computer. The computer program includes a number of instructions, which enables a computing device (e.g., personal computer, terminal, or network device) to implement the method provided by the embodiments.

INDUSTRIAL APPLICABILITY

The present disclosure provides a display device. The display device uses at least two controllers in respective operating states to control the display panels connected to the respective controllers, enhancing the user experience.