CN104165307A - Transparent display and operation method thereof - Google Patents

Abstract

The invention discloses a transparent display and an operating method thereof. The transparent display uses two light source modules with different light emission directions to respectively control the light and display light of the items behind the transparent display to achieve the effect of transparency and display. The transparent display includes a light guide plate, a bracket, a first light source module and a second light source module. The light guide plate includes a light emitting surface, a bottom surface and a light incident surface. The light incident surface is used to receive the light output from the first light source module and output the light from the light emitting surface. The second light source module is disposed on the same side of the bottom surface of the light guide plate, and the direction of the light output by the second light source module is relative to the direction of the light output by the light exit surface.

Description

Transparent display and method of operation thereof

technical field

The present invention relates to a transparent display and its operating method, in particular to a light source for the transparent display.

Background technique

With the popularity of displays, transparent displays have begun to appear in recent years. Users can observe the items behind the transparent display in a partial area of the transparent display, and can obtain the information displayed by the transparent display in another partial area of the transparent display. Transparent display Make the display of information more diverse. However, common transparent displays often need to be matched with a corresponding window and a light source provided inside the window to achieve a good transparency or display effect. This causes the transparent display to be sold together with the window, which not only increases the space of the product, but also limits the form of the window that buyers can choose.

Contents of the invention

An embodiment of the present invention provides a transparent display, which has two light source modules with different light emitting directions, one of which is used as a light source for the display, and the other light source module is used as a light source for illuminating objects. Combined with the window and the light source inside the window, a good transparency or display effect can be achieved.

An aspect of the present invention provides a transparent display including a light guide plate, a bracket, a first light source module and a second light source module. The light guide plate includes a light-emitting surface, a bottom surface and multiple side surfaces. The light-emitting surface and the bottom surface are arranged opposite to each other, and the sides connect the light-emitting surface and the bottom surface. The bracket and the light guide plate are fixed to each other. The first light source module is fixed on the bracket and arranged corresponding to the light incident surface, and the light incident surface of the light guide plate is used to receive the light output by the first light source module and output the light from the light output surface. The second light source module is fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, and the direction of light output by the second light source module is relative to the direction of light output by the light emitting surface.

In one or more embodiments of the present invention, the second light source module includes a light-emitting element and a reflective structure, and the reflective structure is arranged on the bracket to reflect the light emitted by the light-emitting element, so that the direction of the light output by the reflected light-emitting element is relative to the outgoing light. The direction of light emitted by the surface.

In one or more embodiments of the present invention, the second light source module includes a light-emitting element for directly outputting light toward the direction of the light output relative to the light-emitting surface.

In one or more embodiments of the present invention, the transparent display further includes a third light source module and a fourth light source module, the third light source module is fixed on the bracket and arranged corresponding to the light incident surface, and the light incident surface of the light guide plate is used to receive The light output by the third light source module is also output by the light output surface, and the first light source module and the third light source module are independently controlled and used to output light toward different regions of the light guide plate. The fourth light source module is fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, the direction of light output by the fourth light source module is relative to the direction of light output by the light exit surface, and the second light source module and the fourth light source module are independently controlled , for outputting light to different positions behind different regions of the light guide plate.

In one or more embodiments of the present invention, the arrangement direction of the first light source module and the third light source module is perpendicular to the arrangement direction of the second light source module and the fourth light source module.

In one or more embodiments of the present invention, the projections of the second light source module and the bracket on the light guide plate overlap each other.

In one or more embodiments of the present invention, the transparent display includes a light guide plate, a bracket, a first and a third light source module, and a second light source module. The bottom faces are opposite to each other, and the sides are connected to the light-emitting surface and the bottom surface. One of the sides is a light-incident surface, wherein the light-incidence surface includes first and second sub-light-incident surfaces, and the first and second sub-light-incident surfaces are connected to the light-emitting surface and the bottom surface. The bracket and the light guide plate are fixed to each other. The first and third light source modules are fixed on the bracket and are respectively arranged corresponding to the first and second light incident sub-surfaces, the first and second light incident sub-surfaces are respectively used to receive light output by the first and third light source modules, And output light from the light-emitting surface, wherein the light-emitting surface includes first and second regions, and the light output from the first and second regions comes from the corresponding first and second sub-light-incident surfaces adjacent to the first and second regions respectively The first and third light source modules, and the light output by the first and third light source modules have different intensities. The second light source module is fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, the direction of light output by the second light source module is relative to the direction of light output by the light output surface, wherein the first light source module and the second light source module are respectively used to control the intensity of light output from opposite sides of the transparent display.

In one or more embodiments of the present invention, the transparent display further includes a fourth light source module, the second and fourth light source modules are respectively used to output light to the first and second spaces located on the same side of the bottom surface, and the first and The second space is located behind the first and second areas respectively, so that the light output from the second and fourth light source modules to the first and second spaces is reflected and then output from the first and second areas.

In one or more embodiments of the present invention, when the light intensity output by the first light source module is greater than the light intensity output by the third light source module, the light intensity output by the second light source module is smaller than the light intensity output by the fourth light source module .

In one or more embodiments of the present invention, the operating method of the transparent display includes: providing a transparent display, the transparent display includes first and second light source modules, third and fourth second light source modules and a light guide plate, the light guide plate It includes a light-emitting surface, the light-emitting surface includes a first and a second area, the light guide plate receives the light output by the first light source module and outputs the light from the first area of the light-emitting surface, and the light guide plate receives the light output by the third light source module and outputs the light from the light output The second area on the surface outputs light. The direction of light output by the second and fourth light source modules is relative to the direction of light output by the light output surface. The second and fourth light source modules are used to output light to the same side of the bottom surface the first and second spaces, and the first space and the second space are located behind the first and second areas respectively, so that the light output from the second and fourth light source modules to the first and second spaces is reflected by the first One and two area output. And according to an image signal, the first and second light source modules and the third and fourth light source modules are partitioned and controlled. The image signal includes a plurality of sub-image signals, and the sub-image signals are used to control the first and second light source modules and the third and fourth light source modules respectively. The fourth light source module further adjusts the intensity of light output by the two opposite sides of the transparent display in partitions.

In one or more embodiments of the present invention, if the sub-image signal in the first area is a transparent image signal, the first light source module corresponding to the first area is turned off, and the second light source module corresponding to the first area is turned on.

In one or more embodiments of the present invention, if the sub-image signal in the first area is a display image signal, the second light source module corresponding to the first area is turned off, and the first light source module corresponding to the first area is turned on.

In one or more embodiments of the present invention, if the sub-image signal in the first area is a mixed image signal, the first light source module and the second light source module corresponding to the first area are turned on at the same time, and controlled according to the sub-image signal The relative light intensity of the first light source module and the second light source module corresponding to the first area.

Description of drawings

FIG. 1 shows a side view of a transparent display in an embodiment of the present invention;

FIG. 2 illustrates a side view of a transparent display in yet another embodiment of the present invention;

FIG. 3 shows an exploded schematic diagram of a transparent display in an embodiment of the present invention;

FIG. 4 shows an exploded schematic diagram of a transparent display in another embodiment of the present invention;

FIG. 5 shows an exploded schematic view of a transparent display in another embodiment of the present invention;

6A to 6D are schematic diagrams illustrating the operation of a transparent display in another embodiment of the present invention;

7A to 7E are schematic diagrams illustrating the operation of the transparent display in another embodiment of the present invention.

Among them, reference signs:

100: light guide plate

110a, 110b: first area

110c, 110d: second area

110e, 110f: the third area

110g, 110h: the fourth area

110: Light-emitting surface

120: bottom surface

130: side

132: light incident surface

132a, 132b: the first sub-light incident surface

132c, 132d: the second sub-light incident surface

200: bracket

300: The first light source module

300a, 300b: the first light source module

300c, 300d: the third light source module

300e, 300f: fifth light source module

300g, 300h: the seventh light source module

400: Second light source module

400a, 400b: second light source module

400c, 400d: the fourth light source module

410: Light emitting element

420: Reflective Structures

500: items

600: LCD panel

Detailed ways

A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some existing conventional structures and elements will be shown in a simple and schematic manner in the drawings.

Referring to FIG. 1 , FIG. 1 shows a side view of a transparent display in an embodiment of the present invention. The transparent display includes a light guide plate 100 , a bracket 200 , a first light source module 300 , a second light source module 400 and a liquid crystal panel 600 . The light guide plate 100 is disposed opposite to the liquid crystal panel 600 . The light guide plate 100 includes a light-emitting surface 110 , a bottom surface 120 and a plurality of side surfaces 130 . The light-emitting surface 110 is opposite to the bottom surface 120 . The bracket 200 and the light guide plate 100 are fixed to each other. The first light source module 300 is fixed on the bracket 200 and disposed corresponding to the light incident surface 132 . The light incident surface 132 of the light guide plate 100 is used to receive the light output by the first light source module 300 and output the light from the light output surface 110 . The second light source module 400 is fixed on the bracket 200 and disposed on the same side of the bottom surface 120 of the light guide plate 100 . Generally speaking, the light-emitting surface 110 faces the user of the display, and the bottom surface 120 usually faces the items placed on the window or display rack.

In one or more embodiments of the present invention, the second light source module 400 includes a light emitting element 410 and a reflective structure 420. The reflective structure 420 is arranged on the support 200 to reflect the light emitted by the light emitting element 410. The light emitting element 410 is also arranged on the support 200 That is, the light emitting element 410 and the reflective structure 420 are fixed by the bracket 200 , and the setting of the reflective structure 420 makes the direction of light output by the light emitting element 410 relative to the direction of light output by the light emitting surface 110 . In addition, the reflective structure 420 can be designed in conjunction with the objects behind the transparent display, so that the light output by the light-emitting element 410 can be effectively transmitted to the object after passing through the reflective structure 420. Items are observed from the side.

In one or more embodiments of the present invention, the light emitting elements 410 of the first light source module 300 and the second light source module 400 respectively include a plurality of light emitting diodes. Ideally, the light emitting diodes of the light emitting elements 410 of the first light source module 300 and the second light source module 400 are respectively arranged in strips. In this way, the light emitting diodes of the first light source module 300 can correspond to the light incident surface 132 .

In this embodiment, although the reflective structure 420 is represented by a concave reflective mirror, the present invention is not limited thereto, and the reflective structure 420 may also be a plane reflective mirror, a convex reflective mirror or other optical modules with reflective functions. What's more, the reflection structure 420 can be an adjustable reflection angle structure, which can adjust the light direction and angle to match the objects behind the transparent display.

In this way, in one or more embodiments of the present invention, the light output by the first light source module 300 enters the light incident surface 132 of the light guide plate 100, and exits from the light output surface 110 of the light guide plate 100, and the second light source module The light output by 400 is irradiated to the objects behind the transparent display, and the light is reflected by the objects. The light reflected by the objects will pass through the light guide plate 100 and exit from the light-emitting surface 110 . That is, both the light output by the first light source module 300 and the light reflected by the object by the second light source module 400 are emitted from the light emitting surface 110 . When only light from the first light source module 300 emerges from the light-emitting surface 110, the transparent display presents a display effect; when only light from the second light source module 400 emerges from the light-emitting surface 110, the transparent display presents a transparent effect; when the light-emitting surface 110 simultaneously has the first The light from the light source module 300 and the light from the second light source module 400 exit, and the transparent display presents a mixed effect of transparency and display.

Here, when only the light from the second light source module 400 emerges from the light exit surface 110, its transparent effect will be better than the transparent effect in which both the light from the first light source module 300 and the light from the second light source module 400 exit; on the contrary, when When only the light from the first light source module 300 is emitted from the light emitting surface 110 , the display effect is better than the display effect when the light from the first light source module 300 and the light from the second light source module 400 are emitted simultaneously. By controlling the switch or light intensity ratio of the first light source module 300 and the light emitting element 410 or the second light source module 400 , a proper transparent effect and display effect can be achieved on the transparent display.

Referring to FIG. 2 , a side view of a transparent display in another embodiment of the present invention is shown. The foregoing embodiments are similar to the present embodiment, and the difference lies in the structural design of the second light source module 400 . It should be noted that, regardless of the foregoing embodiment or this embodiment, the second light source module 400 has the same function, that is, the second light source module 400 outputs light in the direction of the light output relative to the light output surface 110, and illuminates the object .

In one or more embodiments of the present invention, the second light source module 400 includes a light emitting element 410 , and the light output direction of the light emitting element 410 is relative to the light output direction of the light emitting surface 110 . In this way, the light output by the light emitting element 410 is directly transmitted to the object, and after the light is reflected by the object, the user can observe the object on one side of the transparent display. In addition, the second light source module 400 may include other structures, such as gratings, lenses, prisms, or other optical modules, so that the light emitted by the light emitting element 410 can better irradiate objects behind the transparent display. Since this embodiment is similar to the foregoing embodiments, relevant details are not described in detail here. The light emitting element 410 can be, for example, a light emitting diode, a light bulb, or a cold-cathode fluorescent lamp (Cold-Cathode Fluorescent Lamp, CCFL).

In this way, by controlling the switch or light intensity ratio of the first light source module 300 and the light emitting element 410 or the second light source module 400 , the transparent effect and display effect can be achieved on the transparent display.

In one or more embodiments of the present invention, the bracket 200 is used to fix the positions of the light guide plate 100, the first light source module 300, and the second light source module 400, and the shape of the bracket 200 is not as shown in FIG. 1 or FIG. 2 shown as a limit. In order to allow the light output by the light-emitting surface 110 of the light guide plate 100 and the light reflected by the objects behind the transparent display to pass through the support 200, the support 200 is preferably arranged on the side of the light guide plate 100 to prevent the support 200 from blocking the light-emitting surface 110 and the bottom surface. 120. For example, the bracket 200 can be a frame, the frame and the sides of the light guide plate 100 are fixed to each other, and an opening is provided in the center of the frame to expose the light-emitting surface 110 and the bottom surface 120, so that the light output from the light-emitting surface 110 or the light reflected by objects can pass through the opening. .

In one or more embodiments of the present invention, the projections of the second light source module 400 and the support 200 on the light guide plate 100 overlap each other, that is, the second light source module 400 is located on the support 200 around the light guide plate 100, and the second light source The module 400 is covered by the bracket 200 so that the second light source module 400 does not block the light reflected by the objects behind the transparent display, and the light reflected by the objects can pass through the light guide plate 100 and output to human eyes from the light output surface 110 .

In one or more embodiments of the present invention, the transparent display can control the ratio of light intensity output from the opposite sides of the transparent display by manipulating the first light source module 300 and the second light source module 400, wherein the first light source module 300 is the source of The transparent display is a light source for displaying effects, and the second light source module 400 is a light source for illuminating objects behind the transparent display to present a transparent effect. Proper adjustment of the light intensity ratio output by the first light source module 300 and the second light source module 400 can achieve display and transparency effects of the display.

Referring to FIG. 3, FIG. 3 shows an exploded schematic diagram of a transparent display according to an embodiment of the present invention. For convenience of description, the liquid crystal panel and frame in FIG. 1 are not shown in FIG. 3, but this does not affect the implementation of the present invention. related examples. It can be seen from the figure that the arrangement direction of the first light source module 300 is parallel to the arrangement direction of the second light source module 400, wherein the first light source module 300 is arranged relative to the light incident surface 132 of the light guide plate 100, so that the first light source module 300 The emitted light can enter the light guide plate 100 through the light incident surface 132 . The second light source module 400 is disposed on the same side of the bottom surface 120 of the light guide plate 100 to illuminate objects behind the transparent display. In order to avoid blocking the light reflected by the object from passing through the transparent display, the second light source module 400 is arranged close to the side 130 of the light guide plate 100, wherein, in this embodiment, the second light source module 400 is arranged near the light-incoming surface 132 and the opposite light-incoming surface Side 130 of 132 . Although the length of the light emitting element 410 of the second light source module 400 is the same as the length of the light guide plate 100 and the length of the first light source module 300 , this should not limit the present invention.

Referring to FIG. 4 , FIG. 4 is an exploded schematic diagram of a transparent display in another embodiment of the present invention. The difference between this embodiment and the previous embodiment is that, in the foregoing embodiments, the arrangement direction of the first light source modules 300 is parallel to the arrangement direction of the second light source modules 400, but in this embodiment, the arrangement direction of the first light source modules 300 The arrangement direction is perpendicular to the arrangement direction of the second light source modules 400 . Similar to FIG. 3 , the first light source module 300 is disposed relative to the light incident surface 132 of the light guide plate 100 , so that the light emitted by the first light source module 300 can enter the light guide plate 100 through the light incident surface 132 . The second light source module 400 is disposed on the same side of the bottom surface 120 of the light guide plate 100 and close to the side surface 130 of the light guide plate 100, so as to prevent the light reflected by the blocking object from passing through the transparent display, wherein, in this embodiment, the second light source module 400 The side surface 130 opposite to the light-incident surface 132 and the side surface 132 are disposed close to each other. The second light source module 400 includes a light emitting element 410. Although the length of the light emitting element 410 is the same as the width of the light guide plate 100, this should not limit the present invention.

Referring to FIG. 5 , FIG. 5 is an exploded schematic diagram of a transparent display in another embodiment of the present invention. This embodiment provides a transparent display, including a light guide plate 100, a plurality of first light source modules 300a, 300b, a plurality of second light source modules 400a, 400b, a plurality of third light source modules 300c, 300d and a plurality of fourth light source modules 400c, 400d. The light guide plate 100 includes a light-emitting surface 110, a bottom surface 120, and a plurality of side surfaces 130. The light-emitting surface 110 is opposite to the bottom surface 120, and the side surfaces 130 are connected to the light-emitting surface 110 and the bottom surface 120. The light emitted by a light source module 300a, 300b and the third light source module 300c, 300d, and the first light source module 300a, 300b and the third light source module 300c, 300d are controlled independently, and are used to output light to different areas of the light guide plate 100 .

The light-incident surface 132 includes a plurality of first sub-light-incident surfaces 132a, 132b and a plurality of second sub-light-incident surfaces 132c, 132d, and each first light source module 300a, 300b corresponds to each first sub-light-incident surface 132a. , 132b are arranged, and each third light source module 300c, 300d is arranged corresponding to each second sub-light incident surface 132c, 132d respectively. In this way, the light output by each first light source module 300a, 300b or third light source module 300c, 300d can enter the guide through each first light-incident sub-surface 132a, 132b or second light-incident sub-surface 132c, 132d respectively. The light panel 100, that is, the first sub-light incident surfaces 132a and 132b respectively receive light output from the first light source modules 300a and 300b, and the second sub-light incident surfaces 132c and 132d respectively receive light output from the third light source modules 300c and 300d.

In one or more embodiments of the present invention, the light-emitting surface 110 includes a plurality of first regions 110a, 110b and second regions 110c, 110d, and the first regions 110a, 110b and the second regions 110c, 110d are respectively adjacent to the first sub-regions. The light incident surfaces 132a, 132b and the second sub-light incident surfaces 132c, 132d, wherein, as mentioned above, the light output by the first light source modules 300a, 300b and the third light source modules 300c, 300d respectively enter the first sub-light incident surfaces 132a, 132b and the second sub-light-incident surfaces 132c, 132d, and are respectively emitted from the first regions 110a, 110b and the second regions 110c, 110d of the light-emitting surface 110, that is, the first regions 110a, 110b and the second regions 110c, The light emitted by 110d comes from the first light source modules 300a, 300b and the third light source modules 300c, 300d corresponding to the adjacent first sub-light incident surfaces 132a, 132b and second sub-light incident surfaces 132c, 132d respectively.

The second light source modules 400a, 400b and the fourth light source modules 400c, 400d are arranged on the same side of the bottom surface 120 of the light guide plate 100. The direction of light output from the surface 110 , and the second light source modules 400 a , 400 b and the fourth light source modules 400 c , 400 d are independently controlled to output light toward the rear of different regions of the light guide plate 100 .

Here, the second light source modules 400a, 400b and the fourth light source modules 400c, 400d are respectively used to output light to the first space and the second space located on the same side of the bottom surface 120, and the first space is located in the first area 110a, 110b In the rear, the second space is located behind the second areas 110c and 110d. Objects are set in the first space and the second space. The first spatial reflection is output by the first regions 110a, 110b and transmitted to human eyes. Similarly, the light output from the fourth light source modules 400c and 400d to the second space will be reflected in the second space and output from the second regions 110c and 110d to be transmitted to human eyes.

In one or more embodiments of the present invention, the first light source modules 300a, 300b, the second light source modules 400a, 400b, the third light source modules 300c, 300d and the fourth light source modules 400c, 400d are respectively used to control the transparent display The ratio of the light intensity output by the relative two sides.

In one or more embodiments of the present invention, the light guide plate 100 receives light from both sides, and the first light source modules 300a, 300b and the third light source modules 300c, 300d are arranged in pairs on both sides of the light guide plate 100, but The present invention is not limited thereto, and the light guide plate 100 can also receive light from one side. For example, the first area 110a can be divided into two left and right sub-areas, which are respectively adjacent to the corresponding first light source modules 300a, and the two sub-areas output light from the two first light source modules 300a on both sides respectively, The middle of the two sub-regions can be separated by a reflective plate, which is used to reflect light, so that the light emitted by the first light source module 300a on the right can only be output from the right sub-region of the first region 110a, and cannot enter the first sub-region 110a. A sub-region to the left of region 110a.

In one or more embodiments of the present invention, when the light intensity output by the first light source module 300a is greater than the light intensity output by the first light source module 300b, the first region 110a corresponding to the first light source module 300a is compared with the first area 110a corresponding to the first light source module 300a. The first area 110b corresponding to a light source module 300b tends to display images, therefore, the light intensity output by the second light source module 400a should be smaller than the light intensity output by the second light source module 400b, so as to reduce the comparison between the first area 110a and the first area 110b. The brightness of the transparent image in the region 110b is such that the first region 110a tends to present a display image and the first region 110b tends to present a transparent image.

In one or more embodiments of the present invention, the arrangement direction of the first light source modules 300a, 300b and the third light source modules 300c, 300d is parallel to the arrangement direction of the second light source modules 400a, 400b and the fourth light source modules 400c, 400d . Each first light source module 300a, 300b and third light source module 300c, 300d are set corresponding to each second light source module 400a, 400b and fourth light source module 400c, 400d, so that each second light source module 400a, 400b and the fourth light source module The light reflected by the light source modules 400c and 400d by the objects and the corresponding first light source modules 300a and 300b and the third light source modules 300c and 300d are transmitted by the first sub-light incident surfaces 132a and 132b and the second sub-light incident surfaces of the light guide plate 100 . The light entering the light guide plate 100 on the surfaces 132c and 132d can exit from each of the first regions 110a and 110b and the second regions 110c and 110d corresponding to the light emitting surface 110 .

For example, the light output by the first light source module 300a enters the first sub-light incident surface 132a of the light guide plate 100, and exits from the first region 110a of the light output surface 110 of the light guide plate 100, and the light output by the second light source module 400a The light is irradiated to the first space behind the first area 110a, and the light is reflected by the objects in the first space. In this way, the first region 110a of the light emitting surface 110 only emits the light from the first light source module 300a or the second light source module 400a. Likewise, the first area 110b of the light emitting surface 110 only emits light reflected from the first light source module 300b or the second light source module 400b in the first space behind the first area 110b.

Therefore, the light emitted by the first regions 110a, 110b and the second regions 110c, 110d of the light-emitting surface 110 can be respectively transmitted by the first light source modules 300a, 300b, the third light source modules 300c, 300d and the corresponding second light sources. The modules 400a, 400b are controlled by the fourth light source modules 400c, 400d. In this way, the transparent display can achieve different effects in each of the first regions 110a, 110b and the second regions 110c, 110d, for example, the first region 110a only presents a transparent effect without a display effect, while the first region 110b serves as a display effect .

In actual operation, due to technical difficulties, the light output by the first area 110a, 110b and the second area 110c, 110d may not completely come from the corresponding first light source module 300a, 300b and third light source module 300c, 300d Or the second light source modules 400a, 400b and the fourth light source modules 400c, 400d, but only the light sources mainly from the corresponding regions. For example, at the boundary where the first region 110b is adjacent to the first region 110a or the second region 110c, the output light may include light mainly from the first light source module 300b and the second light source module 400b. Other light from the first light source module 300a, the second light source module 400a or the third light source module 300c, the fourth light source module 400c, but this technical non-ideal situation does not affect the implementability of the embodiment of the present invention. Area controlled light sources are still possible.

6A to 6D are schematic diagrams illustrating the operation of the transparent display in yet another embodiment of the present invention. The setup of its transparent display is depicted in Figure 5. In this embodiment, the first light source modules 300a, 300b and the third light source modules 300c, 300d are arranged in parallel with the second light source modules 400a, 400b and the fourth light source modules 400c, 400d. The operation method is described below. According to an image signal, the first light source module 300a, 300b, the second light source module 400a, 400b, the third light source module 300c, 300d, and the fourth light source module 400c, 400d are controlled in partitions. The image signal and the sub-image signal are respectively used to control the first light source modules 300a, 300b corresponding to the first areas 110a, 110b of the light emitting surface 110, the second light source modules 400a, 400b and the third light source modules 400a, 400b corresponding to the second areas 110c, 110d. The light source modules 300c, 300d and the fourth light source modules 400c, 400d further adjust the light intensities output by the two opposite sides of the transparent display in different regions. In the following description, the unfilled squares represent the light sources that are turned off, and the squares filled with the dots represent the light sources that are turned on.

Referring to FIG. 6A, in one or more embodiments of the present invention, if the sub-image signal of one of the first regions 110a is a transparent image signal, the first light source module 300a corresponding to the first region 110a is turned off, and the first region 110a is turned on. 110a corresponds to the second light source module 400a. In this case, the light output by the second light source module 400a will be transmitted to the article 500 behind the transparent display (usually refers to the side of the transparent display opposite to the consumer), and the light will be reflected by the article 500, and the reflected The light will pass through the first region 110a of the transparent display and be transmitted to the user's eyes in front of the transparent display, so the user can observe the object 500 behind the transparent display in the first region 110a. If the sub-image signals of the first area 110b and the second area 110c, 110d are also transparent image signals, the process is the same.

Referring to FIG. 6B , in one or more embodiments of the present invention, if the sub-image signal of one of the first regions 110a is a display image signal, the second light source module 400a corresponding to the first region 110a is turned off, and the first region 110a is turned on. 110a corresponds to the first light source module 300a. In this case, the light output by the first light source module 300a will be transmitted to the light guide plate 100 of the transparent display, and then emitted from the first area 110a of the light-emitting surface 110 of the light guide plate 100. Multiple devices may be arranged in front of the light guide plate 100 , such as polarizers, color filters, liquid crystal panels, etc., the light emitted by the light guide plate 100 will be processed by these devices to make the light carry display information, and then transmit the light to the user's eyes in front of the transparent display, so the user Display image information can be observed in the first area 110a. If the sub-image signals of the first region 110b and the second region 110c, 110d are also display image signals, the process is the same.

In one or more embodiments of the present invention, multiple devices in front of the light guide plate 100 are also operated or transparent under the partition control of the image signal, so as to match the first light source modules 300a, 300b, and the second light source modules 400a, 400b , the third light source modules 300c, 300d and the fourth light source modules 400c, 400d.

Referring to FIG. 6C, in one or more embodiments of the present invention, if the sub-image signal of the first area 110a is a transparent image signal, and the sub-image signals of the other first area 110b and the second area 110c, 110d are To display image signals, turn off the first light source module 300a, the second light source module 400b, the fourth light source module 400c, 400d, and turn on the first light source module 300b, the third light source module 300c, 300d, and the second light source module 400a. In this way, a transparent image can be presented in the first region 110a to reveal the object 500 behind and the images can be displayed in the first region 110b and the second regions 110c and 110d at the same time.

Although in Fig. 6A to Fig. 6C, when each first region 110a, 110b and second region 110c, 110d operate, only the first light source module 300a, 300b, and the third light source module 300c, 300d are selected to be turned on, or only The second light source modules 400a, 400b and the fourth light source modules 400c, 400d are turned on, but this should not be used to limit the present invention.

Referring to FIG. 6D , in one or more embodiments of the present invention, if the sub-image signal in one of the first regions 110a is a mixed image signal and a semi-transparent and half-displayed image signal, then simultaneously turn on the sub-image signal corresponding to the first region 110a. A light source module 300a and a second light source module 400a, and control the relative light intensity of the first light source module 300a and the second light source module 400a according to the sub image signal. In this situation, the light output by the second light source module 400a is reflected by the object 500, the reflected light will pass through the first area 110a of the transparent display, and the light output by the first light source module 300a will be emitted by the light-emitting surface of the light guide plate 100 110 output from the first area 110a, the user's eyes can receive the light output by the two light sources at the same time in the first area 110a, by controlling the relative light intensity of the first light source module 300a and the second light source module 400a, in the second A region 110a achieves the adjustment of the transparency of the displayed image. If the sub-image signals of the first region 110b and the second region 110c, 110d are also mixed image signals, the process is the same.

In a word, the first light source modules 300a, 300b, the second light source modules 400a, 400b, the third light source modules 300c, 300d, and the fourth light source modules 400c, 400d are respectively controlled by sub-image signals or light intensity, so that the first areas 110a, 110b and the second regions 110c and 110d present a transparent or display effect.

7A to 7E are schematic diagrams of the operation of the transparent display in another embodiment of the present invention. The aforementioned embodiment is similar to this embodiment, the difference is that in this embodiment, the arrangement direction of the first light source modules 300a, 300b and the third light source modules 300c, 300d is perpendicular to the arrangement direction of the second light source modules 400a, 400b . In the following description, the grids not filled with dots represent the light sources that are turned off, and the grids filled with dots represent the light sources that are turned on. The operation method of this embodiment is described below.

According to an image signal, the first light source modules 300a, 300b, the second light source modules 400a, 400b, and the third light source modules 300c, 300d are controlled in partitions. The image signal includes a plurality of sub-image signals, and the sub-image signals are used to control the light output surface 110 respectively. The first light source modules 300a, 300b, the second light source modules 400a, 400b and the third light source modules corresponding to the first areas 110a, 110b, the second areas 110c, 110d, the third areas 110e, 110f, and the fourth areas 110g, 110h 300c, 300d, and then adjust the intensity of light output by the two opposite sides of the transparent display in different regions, as illustrated below with an example.

Referring to FIG. 7A, in one or more embodiments of the present invention, if the sub-image signals of the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f, and the fourth area 110g, 110h are For transparent image signals, the first light source modules 300a, 300b and the third light source modules 300c, 300d are turned off, and the second light source modules 400a, 400b are turned on. In this situation, the light output by the second light source module 400a, 400b will be transmitted to the object 500 behind the transparent display, the light will be reflected by the object 500, and the reflected light will pass through the first area 110a, 110b of the transparent display , second area 110c, 110d, third area 110e, 110f or fourth area 110g, 110h, and transmitted to the user's eyes in front of the transparent display, so the user can observe the object 500 behind the transparent display.

7B, in one or more embodiments of the present invention, if the sub-image signals of the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f and the fourth area 110g, 110h are To display image signals, turn off the second light source modules 400a, 400b, and turn on the first light source modules 300a, 300b and the third light source modules 300c, 300d. In this situation, the light output by the first light source module 300a, 300b and the third light source module 300c, 300d will be transmitted to the light guide plate 100 of the transparent display, and will be transmitted from the first regions 110a, 110b of the light output surface 110 of the light guide plate 100 , the second area 110c, 110d, the third area 110e, 110f and the fourth area 110g, 110h are emitted, and a plurality of devices can be arranged in front of the light guide plate 100, such as polarizers, color filters, liquid crystals, etc., and the light guide plate 100 outputs The light will be processed by these devices to make the light carry display information, and then transmit the light to the user's eyes in front of the transparent display, so the user can be in the first area 110a, 110b, the second area 110c, 110d, the third area The areas 110e, 110f, and the fourth areas 110g, 110h observe and display image information.

Referring to FIG. 7C, if the sub-image signals in the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f, and the fourth area 110g, 110h are mixed image signals, the first light source module 300a, 300b, the second light source module 400a, 400b and the third light source module 300c, 300d, and control the relative light of the first light source module 300a, 300b, the second light source module 400a, 400b and the third light source module 300c, 300d according to the sub image signal strength.

In this situation, the light output by the second light source module 400a, 400b is reflected by the object 500, and the reflected light will pass through the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f or the fourth area 110g, 110h, and the light output by the first light source module 300a, 300b and the third light source module 300c, 300d will be output by the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f or the fourth area 110g, 110h, the user's eyes receive the light output by the two light sources at the same time, and can control the first light source module 300a, 300b and the third light source module 300c, 300d Relative to the light intensity of the second light source modules 400a, 400b, the display image transparency can be adjusted in the first areas 110a, 110b, the second areas 110c, 110d, the third areas 110e, 110f, and the fourth areas 110g, 110h.

However, because in this embodiment, the first light source modules 300a, 300b, the second light source modules 400a, 400b and the third light source modules 300c, 300d are not arranged in parallel or correspondingly arranged, so some problems may arise in the partition operation. For example, the first area 110a and the first area 110b share the same first light source module 300a, and the first area 110a and the second area 110c share the same second light source module 400a, so the first area 110a cannot be independently controlled. If the sub-image signals of the first area 110a are different from those of the first area 110b or the second area 110c, and it is desired to control the specific first area 110a to display the information of the sub-image signal, other areas, such as the first area 110b, may be generated. A darker situation, or a brighter situation in part of the second region 110c.

Referring to Fig. 7D, in one or more embodiments of the present invention, in order to solve the problem that the first light source modules 300a, 300b, the third light source modules 300c, 300d and the second light source modules 400a, 400b in Fig. 7C are not arranged in parallel To solve the problem, the light output by the second light source modules 400a, 400b and the fourth light source modules 400c, 400d are respectively designed to be irradiated to the rear of the first area 110a, 110b and the second area 110c, 110d, that is, the second light source module 400a , 400b irradiate to the first space behind the first area 110a, 110b respectively, and the fourth light source modules 400c, 400d respectively irradiate to the second space behind the second area 110c, 110d, the first space and the second space are set The light output by the article 500, the second light source modules 400a, 400b and the fourth light source modules 400c, 400d are reflected by the article 500 in the first space and the second space, and transmitted to the human eyes, so that the human eyes can obtain the light behind the transparent display. Item information. Here, the arrangement direction of the first light source modules 300a, 300b and the third light source modules 300c, 300d is perpendicular to the arrangement direction of the second light source modules 400a, 400b and the fourth light source modules 400c, 400d.

For example, if the sub-image signal of one of the first areas 110a is a transparent image signal, and the sub-image signals of the first area 110b, the second area 110c, and 110d are display image signals, then the first light source module 300a and the second light source module 300a are turned off. The light source module 400b and the fourth light source module 400c, 400d, turn on the first light source module 300b, the third light source module 300c, 300d and the second light source module 400a. Indicates that the light source is turned off, and the dots filled in the grid indicate that the light source is turned on, wherein the second light source module 400a illuminates the object 500 located behind the first area 110a, and the second light source that cannot be turned off behind the first area 110b and the second area 110c, 110d The module 400b illuminates with the fourth light source modules 400c and 400d. In this way, the first area 110a can be illuminated by the second light source module 400a to present a transparent image, while the first area 110b and the second area 110c, 110d are output from the first light source module 300b and the third light source module 300c, 300d receives light input into the light guide plate 100 to present a display image. The user can observe the object 500 behind the transparent display and the displayed image of the transparent display in different areas of the transparent display at the same time.

In addition to the above methods, the second light source modules 400a and 400b can also be designed as light sources with adjustable light source directions, which can mechanically move and rotate the position or scheduling of light emitting elements or reflectors to make the light of the second light source modules 400a and 400b It can also achieve good transparency or display effect when irradiated to the area.

Referring to FIG. 7E, in one or more embodiments of the present invention, in order to solve the problem that the first light source modules 300a, 300b, the third light source modules 300c, 300d and the second light source modules 400a, 400b in FIG. To solve the problem, the light guide plate 100 can be designed to receive light from one side, and the output light intensity of a specific area can be controlled by a single first light source module 300a or first light source module 300b. In detail, the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f, the fourth area 110g, 110h of the light guide plate 100 are designed to output light from the adjacent first light source module 300a respectively. , 300b, third light source modules 300c, 300d, fifth light source modules 300e, 300f, seventh light source modules 300g, 300h, so that each area has an independently controlled light source.

In one or more embodiments of the present invention, appropriate structures, such as microstructures, exist between the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h. Or reflective layer, etc., so that the light input by the light source module in the light guide plate 100 is only output from the corresponding specific area, so as to prevent the light from the light source not corresponding to a certain area from entering a certain area. For example, the light input from the first light source module 300a into the light guide plate 100 can only be output from the first area 110a but cannot enter the first area 110b, let alone output the light from the first light source module 300a from the first area 110b. In this way, the light output from each area has an independently controlled light source.

By properly controlling the switch of the light source module, transparency or images can be displayed in different areas. Here, in the figure, the grids filled with dots represent the light sources that are turned on, and the grids that are not filled with dots represent the light sources that are turned off. For example, as shown in the figure, by turning on the second light source module 400a, turning off the first light source module 300a, the third light source module 300c, the fifth light source module 300e, and the seventh light source module 300g, in the first region 110a, the second light source module The second area 110c, the third area 110e, and the fourth area 110g present transparent images; by turning off the second light source module 400b, turning on the first light source module 300b, the third light source module 300d, the fifth light source module 300f, and the seventh light source module 300h, Display images are displayed in the first area 110b, the second area 110d, the third area 110f, and the fourth area 110h. The user can observe the object 500 behind the transparent display and the displayed image of the transparent display in different areas of the transparent display at the same time.

An embodiment of the present invention provides a transparent display. The transparent display has two light source modules with different light emitting directions. One of the light source modules is used as a light source for the display, and the other light source module is used as a light source for illuminating objects. The transparent display can thereby achieve good lighting effects. The transparent effect and display effect do not need to match the light source inside the window and the window. In addition, through zone control, the transparent display can be controlled to achieve different transparency and display effects in multiple areas.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall prevail as defined in the scope of the appended patent application.

Claims (13)

1. A transparent display, characterized in that it comprises: A light guide plate, including a light-emitting surface, a bottom surface and a plurality of side surfaces, the light-emitting surface is opposite to the bottom surface, and the side surfaces are connected to the light-emitting surface and the bottom surface, wherein one of the side surfaces is a light-incident surface; a bracket, fixed to the light guide plate; A first light source module, fixed on the bracket and arranged corresponding to the light incident surface, the light incident surface of the light guide plate is used to receive the light output by the first light source module and output the light from the light output surface; A second light source module is fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, and the direction of light output by the second light source module is relative to the direction of light output by the light-emitting surface. 2. The transparent display according to claim 1, wherein the second light source module comprises: a light emitting element; and A reflective structure, which is arranged on the bracket, is used to reflect the light emitted by the second light source, so that the direction of the light output by the second light source is relative to the direction of the light output by the light-emitting surface. 3. The transparent display according to claim 1, wherein the second light source module comprises: A light-emitting element is used for directly outputting light toward the direction of light output relative to the light-emitting surface. 4. The transparent display according to claim 1, further comprising: A third light source module is fixed on the bracket and arranged corresponding to the light incident surface, the light incident surface of the light guide plate is used to receive the light output by the third light source module and output the light from the light output surface, and the first The light source module and the third light source module are independently controlled and used to output light toward different areas of the light guide plate; and A fourth light source module, fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, the direction of light output by the fourth light source module is relative to the direction of light output by the light exit surface, and the second light source module It is independently controlled from the fourth light source module, and is used to output light toward the rear of different areas of the light guide plate. 5. The transparent display according to claim 4, wherein an arrangement direction of the first light source module and the third light source module is perpendicular to an arrangement direction of the second light source module and the fourth light source module. 6 . The transparent display according to claim 1 , wherein the projections of the second light source module and the bracket on the light guide plate overlap each other. 7. A transparent display, characterized in that it comprises: A light guide plate includes a light-emitting surface, a bottom surface and a plurality of side surfaces, the light-emitting surface is opposite to the bottom surface, and the side surfaces are connected to the light-emitting surface and the bottom surface, wherein one of the side surfaces is a light-incident surface, wherein the The light-incident surface includes a first and a second sub-light-incident surface, and the first and second sub-light-incident surfaces connect the light-emitting surface and the bottom surface; a bracket, fixed to the light guide plate; a first and a third light source module, fixed on the support and arranged corresponding to the first and second sub-light-incident surfaces respectively, the first and second sub-light-incident surfaces are respectively used to receive the first and third light sources The light output by the module, and the light is output from the light-emitting surface, wherein the light-emitting surface includes a first and a second area, respectively adjacent to the first sub-light-incident surface and the second sub-light-incident surface, and the output of the first area The light comes from the first light source module corresponding to the first sub-light incident surface adjacent to the first area, and the light output by the second area comes from the second sub-light incident surface adjacent to the second area. the third light source module; and A second light source module, fixed on the bracket and arranged on the same side of the bottom surface of the light guide plate, the direction of light output by the second light source module is relative to the direction of light output by the light output surface, wherein the first light source module The second light source module and the second light source module are respectively used to control the output light intensity of the two opposite sides of the transparent display. 8. The transparent display according to claim 7, further comprising a fourth light source module, the second and fourth light source modules are respectively used to output light to the first and second spaces located on the same side of the bottom surface , and the first and second spaces are respectively located behind the first and second regions, so that the light output from the second and fourth light source modules to the first and second spaces is reflected by the first and second Two area output. 9. The transparent display according to claim 7, wherein when the light intensity output by the first light source module is greater than the light intensity output by the third light source module, the light intensity output by the second light source module is smaller than the light intensity output by the first light source module The light intensity output by the four light source module. 10. A method for operating a transparent display, characterized in that the method comprises: Provide a transparent display, the transparent display includes a first light source module, a second light source module, a third light source module, a fourth light source module and a light guide plate, the light guide plate includes a light-emitting surface, the light-emitting surface includes a In the first and second areas, the light guide plate receives the light output from the first light source module and outputs the light from the first light source module from the first area of the light output surface, and the light guide plate receives the light output from the third light source module And the light from the third light source module is output from the second area of the light-emitting surface. The direction of the light output by the second and fourth light source modules is relative to the direction of light output by the light-emitting surface. The second and fourth light sources The modules are respectively used to output light to a first and second space located on the same side of the bottom surface, and the first space and the second space are respectively located behind the first and second areas, so that the second and fourth light source modules The light output to the first and second spaces is reflected and output from the first and second areas; and Control the first light source module, the second light source module, the third light source module and the fourth light source module according to an image signal, the image signal includes a plurality of sub-image signals, and the sub-image signals are used to control the first and second light source modules respectively The second light source module and the third and fourth light source modules further adjust the intensity of light output by the two opposite sides of the transparent display. 11. The method for operating a transparent display according to claim 10, wherein if the sub-image signal in the first area is a transparent image signal, then turn off the first light source module corresponding to the first area, and turn on the sub-image signal. The second light source module corresponding to the first area. 12. The method for operating a transparent display according to claim 10, wherein if the sub-image signal in the first area is a display image signal, then turn off the second light source module corresponding to the first area, and turn on the sub-image signal. The first light source module corresponding to the first area. 13. The method for operating a transparent display according to claim 10, wherein if the sub-image signal in the first area is a mixed image signal, simultaneously turn on the first light source module and the second light source module corresponding to the first area Two light source modules, and control the relative light intensity of the first light source module and the second light source module corresponding to the first area according to the sub-image signal.