Patent Description:
Mirrors are used for utilitarian and decorative purposes and are often placed in retail locations for both purposes. For example, mirrors are placed in dressing rooms or near retail items so that a person may view the fit and look of the product on themselves before purchasing. Two way mirrors (sometimes also referred to as one way mirrors) that present a semi-transparent view from one side of the mirror and a semi-reflective view from the other side of the mirror. These mirrors are used by police in interrogation rooms, for example, so that the investigators or witnesses may observe the person being interrogated but the person being interrogated cannot view the observers. These mirrors are also used, for example, by stores to mask the direction of a security camera lens, as well as many other applications.

Advertising displays have long been used in retail locations to promote various products and services. These advertising displays may be static posters or images displayed on electronic displays.

<CIT> discloses a method of controlling a mirror display and an electronic device. The method includes identifying whether external power is input to the electronic device; and providing operation power to the mirror display by selectively providing one of the external power and battery power to the mirror display as the operating power according to whether the external power is input to the mirror display.

<CIT> discloses an image and mirror fusion digital multimedia data display system to freely change an image and a mirror function according to an approach position and transmit data through a display. When the image output of the display panel is off, the glass mirror functions as a mirror.

<CIT> discloses an advertising display cabinet with a hinged front door comprising a half-silvered mirror, behind which is an array of open-fronted cells each containing a halogen lamp. Interposed between the open front of each cell and the mirror is a light- transmissive picture. Photo-sensors disposed behind the mirror detect the presence of a person in front of the mirror, and activate a controller which energises one or more halogen lamps in the cells to cause predetermined back-projected picture images to be seen by the person.

Exemplary embodiments of the mirrored display relate to an optical stack having an intergrated electronic display. The optical stack may be a two way mirror with the electronic display mounted therebehind such that the image displayed on the electronic display can be shown through the optical stack when the electornic display is illuminated. When the electronic display is not illuminated, the optical stack may appear as a reflective surface. The mirroed dispay may also comprise a video player, a timing and control board, and other components that are electrically connected to the electronic display and configured control static or video images displayed on the electronic display.

In other exemplary embodiments, the electronic display may be a capacative touch screen display. The mirrored display may further comprise a processor that recieves a user's input and updates the displayed image based on the user's input. For example and not to serve as a limitation, the user may select various clothing items for display on the mirroed display such that the user can see a visual depiction of the clothing item on the user without having to actually wear the clothing item. The mirroed display may include a sensor that detecs when a person is in view of the mirrored display and operate the electronic display accordingly.

According to a first aspect of the invention, an apparatus for presenting an image on a mirrored display is defined in claim <NUM>.

In addition to the features mentioned above, other aspects of the present invention will be readily apparent from the following descriptions of the drawings and exemplary embodiments, wherein like reference numerals across the several views refer to identical or equivalent features, and wherein:.

The invention is described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/ or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Embodiments of the invention are described herein with reference to illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the invention. Thus, embodiments of the invention should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.

It is well known that electronic display such as the ones described herein are capable of displaying static images as well as video. As used herein, the terms are interchangeable, since the functionality of the device is the same as it relates to the exemplary embodiments.

<FIG> In an exemplary embodiment the mirrored display <NUM> comprises an optical stack <NUM> and an electronic display <NUM>. The mirrored display <NUM> may comprise a cabinet or housing that frames and secures the optical stack <NUM> such that the reflective surface faces a user/viewer, the cabinet may also secure other components of the mirrored display <NUM>. In exemplary embodiments, the cabinet or housing may surround at least the back, sides, top, and bottom of the optical stack <NUM> and the other components. The mirrored display <NUM> and the optical stack <NUM> may be any size and shape relative to one another. The optical stack <NUM> may contain one or more reflective materials such as, but not limited to, silver, tin, nickel, mercury, aluminum, aluminum oxides, gold, chrome, silicon oxides, silicon nitrides, some combination thereof, or the like. The partially silvered or half silvered mirror may also be accomplished by organizing the die-electric optical coating components in such an order to result non-conductive "silvered" appearing mirror.

The optical stack <NUM> may be a two-way (aka and hereinafter also one-way) mirror design. To accomplish the two-way mirror design, the optical stack <NUM> may be partially silvered. In exemplary embodiments, the optical stack <NUM> may be substantially half silvered. In this way, when some or all of the electronic display <NUM> is illuminated, the image displayed thereon may appear through the optical stack <NUM> and the unilluminated portions of the electronic display <NUM> and the optical stack <NUM> may appear as a reflective surface. In exemplary embodiments, the optical stack <NUM> may comprise a cover glass or a transparent cover.

The electronic display <NUM> may be mounted inside the mirrored display <NUM> behind the optical stack <NUM>. The electronic display <NUM> may have a viewing area. In exemplary embodiments, the electronic display <NUM> has a smaller surface area than the total surface area of the mirrored display <NUM>, though any size and shape electronic display <NUM> is contemplated. The electronic display <NUM> may be any type of electronic display <NUM> such as, but not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED), Organic LED (OLED), electroluminescent polymer display, or the like. In exemplary embodiments, only the portion of the optical stack <NUM> having the electronic display <NUM> located thereunder may be of the two-way design, while the remaining portions of the optical stack <NUM> may be of a normal mirrored (i.e., substantially fully silvered) surface. In other exemplary embodiments, the entire optical stack <NUM> may be of the two-way design.

In exemplary embodiments, the optical stack <NUM> may comprise a reflective layer <NUM>. The reflective layer <NUM> may be substantially coextensive with the optical stack <NUM>. The reflective layer <NUM> may be comprised of reflective materials such that it is partially silvered or half silvered. In exemplary embodiments, the reflective layer <NUM> is partially silvered where the reflective layer <NUM> is located above the electronic display <NUM> or the viewing area and substantially fully silvered on the remaining surface thereof.

The electronic display <NUM> may be in electrical connection with a timing and control board (TCON) <NUM> which may be in electrical connection with a video player <NUM>. The TCON <NUM> and video player <NUM> may be mounted in the cabinet for the optical stack <NUM> or may be located remotely. The TCON <NUM> and video player <NUM> may control the images displayed on the electronic display <NUM>. For example, and not intended to be limiting, a general advertising image can be displayed anywhere on the electronic display <NUM>. Alternatively, the image of a clothing item may be displayed on the mirrored display <NUM>, and sized/positioned over the reflection of the viewer such that the viewer can see a visual depiction of how the clothing item would fit and appear on their body without having to actually try the clothing item on.

<FIG> A detailed sectional view taken along section line A-A of <FIG> reveals the various layers that comprise the optical stack <NUM> and the electronic display <NUM> of the mirrored display <NUM>. The section line A-A preferably cuts horizontally through the indicated portion of the mirrored display <NUM>. A glass panel <NUM> may form the outermost layer of the optical stack <NUM>. The glass panel <NUM> may be a cover glass. A first optical film <NUM> is preferably bonded to the rear surface of the glass panel <NUM>, preferably with index-matching optical adhesive. A second optical film <NUM> may be bonded to the rear surface of the first optical film <NUM>, again preferably using an index-matched optical adhesive. In an exemplary embodiment, the second optical film <NUM> may contain an anti-reflective coating on one or both sides. In some alternative embodiments, one or both sides of the first optical film <NUM> may contain an anti-reflective coating. Additionally, the outermost face of the glass panel <NUM> may also contain an anti-reflective coating. Preferably, the first optical film <NUM> may be a zero retardation film such as TAC, or a XENOR zero retardation film, or a linear polarizer. Also preferably, the second optical film <NUM> would be a linear polarizer. However, in some embodiments, the second optical film <NUM> would instead be a projective capacitance touch screen, comprising one or two layers of low birefringent or zero retardation films.

The reflective layer <NUM> may be integrally formed with, positioned on, or located adjacent to the glass panel <NUM>, and may be partially silvered on the portions that are located above the electronic display <NUM> and substantially full silvered on the portions where the electronic display <NUM> is not located thereunder. In other exemplary embodiments, the entire optical stack <NUM> is partially silvered or the reflective layer <NUM> may be located anywhere in the optical stack <NUM>. The rear surface of the glass panel <NUM> may be painted black or backed with or otherwise mounted above a fully or partially opaque layer in the locations where the electronic display <NUM> is not located thereunder. This may improve reflectivity of the optical stack <NUM>.

The electronic display <NUM> may be located below the optical stack <NUM> and may be comprised of a series of layers, the specifics being dependent upon the type of electronic display <NUM> chosen. In an exemplary embodiment, the electronic display <NUM> comprises a liquid crystal stack with a backlight positioned to illuminate the liquid crystal stack.

<FIG> In another exemplary embodiment, a mirrored display <NUM> may be similar to the mirrored display <NUM> of <FIG> with the addition of several features to increase interactivity and provide other desirable benefits. A sensor <NUM> may be mounted to the cabinet or housing of the mirrored display <NUM> or be located behind the two-way portion of the optical stack <NUM>. The sensor <NUM> may be a motion sensor, proximity sensor, or the like and may be configured to detect if a user/viewer is standing in front of, or in close proximity with, the mirrored display <NUM>. In other exemplary embodiments, the sensor <NUM> may further comprise an ambient light sensor and may adjust the illumination level of the electronic display <NUM>. Regardless, the sensor <NUM> may be in electrical connection (wired or wireless) with a processor <NUM>, which may be in electrical connection (wired or wireless) with the video player <NUM>.

In exemplary embodiments the electronic display <NUM> may include touch screen technology, preferably a capacitive touch screen, and the processor <NUM> may also be in electrical communication with a plurality of touch inputs <NUM>. The touch inputs <NUM> may receive the user's input and the processor <NUM> may determine the location, type, duration, or the like of the user's touch and direct the video player <NUM> to make appropriate changes to the image being displayed on the electronic display <NUM>.

Additionally, the mirrored display <NUM> may comprise a network interface controller <NUM>. The network interface controller <NUM> may be in electrical connection (wired or wireless) with the video player <NUM> or another component of the mirrored display <NUM>. The network interface controller <NUM> may connect the mirrored display <NUM> to a communications network such as an internet, intranet, satellite communications network, cellular network, the world wide web, or the like. In this way, the mirrored display <NUM> may receive remote updates for the images to be displayed or the operation of the mirrored display <NUM> generally.

<FIG> A detailed sectional view taken along section line B-B of <FIG> reveals the various layers that comprise the optical stack <NUM> and the electronic display <NUM> of the mirrored display <NUM>. These layers may be the same as those illustrated and described with respect to <FIG> with the addition of a touch screen layer <NUM> located below the glass panel <NUM>. The touch screen layer <NUM> may comprise a grid of wires and electrodes configured to detect the location of a user's finger or other appendage. The touch screen layer <NUM> may be electrically connected to the touch inputs <NUM>. In exemplary embodiments, the touch screen <NUM> is coextensive with at least a portion of the viewing area.

<FIG> A detailed sectional view taken along section line C-C of <FIG> reveals the internal structure and various layers of the mirrored display <NUM> in the areas where the electronic display <NUM> is not located below the optical stack <NUM>. In these areas, only the optical stack <NUM>, comprising of the layers shown and described above, may be present. This may result in a cavernous area where the electronic display <NUM> would other reside. In exemplary embodiments, various electronic components <NUM> such as, but not limited to, power supplies, cooling or thermal management systems, the processor <NUM>, TCON <NUM>, video player <NUM>, and network interface controller <NUM> could be secured in this area, though such is not required. In other embodiments, the various electronic components <NUM> could be positioned above or below the optical stack <NUM>, rather than behind it as shown in this Figure.

<FIG> The mirrored display <NUM> is in communication with the sensor <NUM> such that it detects whether the user/viewer is in view of the mirrored display <NUM>. If the user is not in view, the mirrored display <NUM> is driven in a low power mode (little luminance produced by the display). The lower power mode includes driving the backlight for the electronic display <NUM> at a reduced level. The lower power mode continues until the user is in view or within the proximity of viewing the mirrored display <NUM>.

Claim 1:
An apparatus for presenting images on an electronic display assembly of a mirrored display (<NUM>) comprising:
the electronic display assembly having a viewing area and comprising a backlight;
a cover glass <NUM> having a surface area, wherein said cover glass is positioned in front of, and substantially parallel with, the electronic display assembly such that the surface area substantially covers the viewing area;
a reflective layer positioned on and substantially coextensive with said cover glass, wherein said reflective layer is partially silvered where the reflective layer is located above the viewing area and substantially fully silvered on the remaining surface thereof;
a sensor (<NUM>) configured to detect a presence of a person in front of said mirrored display; and
a processor (<NUM>) electrically connected with said sensor and said electronic display assembly, characterised in that said processor is configured to:
operate said electronic display assembly in a first mode, comprising driving the backlight at a first, non-zero power level and displaying at least one of the images on the electronic display assembly; and
upon receipt of data from the sensor indicating detection of the presence of the person, subsequently operate the electronic display assembly in a second mode, comprising driving the backlight at a second, non-zero power level which is greater than the first, non-zero power level.