TWI502564B - Transparent display device and operation method thereof - Google Patents

Description

Transparent display and its operation method

This invention relates to a transparent display and method of operation thereof, and more particularly to a light source for a transparent display.

With the prevailing of displays, transparent displays have been introduced in recent years. Users can observe the objects behind the transparent display in a partial area of the transparent display, and the information displayed by the transparent display can be obtained in another part of the transparent display. The transparent display Make the display of information more diverse. However, a common transparent display often needs 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 sale of transparent displays to be sold along with the window, which not only increases the space of the goods, but also limits the form of the window that the buyer can choose.

The embodiment of the invention provides a transparent display, wherein the transparent display has two light source modules with different light exit directions, wherein one light source module serves as a light source of the display, and the other light source module serves as a light source for illuminating the object, so that There is no need to match the light source inside the window and window. Achieve good transparency or display.

One 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 comprises a light emitting surface, a bottom surface and a plurality of side surfaces, wherein the light emitting surface is opposite to the bottom surface, and the side surface is connected to the light emitting surface and the bottom surface, wherein one of the side surfaces is a light incident surface. The bracket and the light guide plate are fixed to each other. The first light source module is fixed to the bracket and corresponding to the light incident surface, and the light incident surface of the light guide plate is configured to receive the light output by the first light source module and output light from the light exit surface. The second light source module is fixed to the bracket and 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 opposite to the direction of the light output by the light exit 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 disposed 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 opposite to The direction of the light output from the illuminating surface.

In one or more embodiments of the present invention, the second light source module includes a light emitting element for outputting light directly toward a direction of light outputted relative to the light exiting 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, wherein the third light source module is fixed to the bracket and is disposed corresponding to the light incident surface, and the light incident surface of the light guide plate The light source for receiving the output of the third light source module is outputted by the light emitting surface, and the first light source module and the third light source module are independently controlled, and are used to output light to different regions of the light guide plate. The fourth light source module is fixed on the bracket and disposed on the same side of the bottom surface of the light guide plate, and the light direction output by the fourth light source module is opposite to the light output. The direction of the light output by the surface, and the second light source module and the fourth light source module are independently controlled to output light respectively 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, a transparent display includes a light guide plate, a bracket, first and third light source modules, and a second light source module. The light guide plate includes a light emitting surface, a bottom surface, and a plurality of side surfaces. The surface is opposite to the bottom surface, and the side surface is connected to the light surface and the bottom surface, wherein one of the side surfaces is a light incident surface, wherein the light incident surface comprises first and second sub-light incident surfaces, and the first and second sub-light incident surfaces are connected to the light surface and Bottom surface. The bracket and the light guide plate are fixed to each other. The first and third light source modules are respectively fixed to the brackets and respectively disposed corresponding to the first and second sub-light incident surfaces, and the first and second sub-light incident surfaces are respectively configured to receive the output of the first and third light source modules Light, and outputting light from the light exiting surface, wherein the light emitting surface includes first and second regions, and the first and second regions output light from the first and second sub-lighting surfaces adjacent to the first and second regions, respectively Corresponding 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 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 opposite to the direction of the light output by the light exit surface, wherein the first light source module and the second light source module The groups are respectively used to control the light intensity outputted by the 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, and the second and fourth light source modules respectively output light to the first and second spaces on the same side of the bottom surface, and The first and second spaces are located behind the first and second regions, respectively, such that the second and fourth light source modules output light to the first and second spaces, and are reflected and output by the first and second regions.

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 fourth light source module. The intensity of the light output.

In one or more embodiments of the present invention, a method for operating a transparent display includes: providing a transparent display, the transparent display comprising first and second light source modules, third and fourth light source modules, and a light guide plate, The light guide plate comprises a light emitting surface, the light emitting surface comprises a first and second regions, the light guide plate receives the light output by the first light source module and outputs light from the first region of the light emitting surface, and the light guide plate receives the output of the third light source module. The light is outputted by the second area of the light-emitting surface, and the second and fourth light source modules are respectively used by the second light source module and the light source outputted by the second light source module. Outputting light to the first and second spaces on the same side of the bottom surface, and the first space and the second space are respectively located behind the first and second regions, so that the second and fourth light source modules are output to the first and second The light of the space is reflected by the first and second regions of the output. And controlling the first and second light source modules and the third and fourth light source modules according to an image signal, wherein the image signal comprises a plurality of sub-image signals, and the sub-image signals are respectively used to control the first and second light source modules and Third and fourth light source modules, and further The area adjusts the light intensity output by the opposite sides of the transparent display.

In one or more embodiments of the present invention, if the sub-image signal of 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 of 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 of the first region is a mixed image signal, simultaneously opening the first light source module and the second light source module corresponding to the first region, and according to the sub-image signal Controlling the relative light intensity of the first light source module and the second light source module corresponding to the first area.

100‧‧‧Light guide plate

110a, 110b‧‧‧ first area

110c, 110d‧‧‧ second area

110e, 110f‧‧‧ third area

110g, 110h‧‧‧ fourth area

110‧‧‧Glossy surface

120‧‧‧ bottom

130‧‧‧ side

132‧‧‧Into the glossy surface

132a, 132b‧‧‧ the first child into the glossy

132c, 132d‧‧‧ second sub-glossy

200‧‧‧ bracket

300‧‧‧First light source module

300a, 300b‧‧‧ first light source module

300c, 300d‧‧‧ third light source module

300e, 300f‧‧‧ fifth light source module

300g, 300h‧‧‧ seventh light source module

400‧‧‧Second light source module

400a, 400b‧‧‧ second light source module

400c, 400d‧‧‧ fourth light source module

410‧‧‧Lighting elements

420‧‧‧reflective structure

500‧‧‧ items

600‧‧‧ LCD panel

Figure 1 is a side elevational view of a transparent display in accordance with one embodiment of the present invention.

2 is a side view of a transparent display in still another embodiment of the present invention.

FIG. 3 is a schematic exploded view of a transparent display in an embodiment of the present invention.

4 is an exploded perspective view of a transparent display in another embodiment of the present invention.

Figure 5 is a diagram showing the division of a transparent display in still another embodiment of the present invention. Solution diagram.

6A to 6D are schematic views showing the operation of the transparent display in still another embodiment of the present invention.

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

The various embodiments of the present invention are disclosed in the drawings, and in the claims However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Referring to Figure 1, Figure 1 is a side elevational view of a transparent display in accordance with one 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 side surface 130 is connected to the light surface 110 and the bottom surface 120. One of the side surfaces 130 is a light incident surface 132. The bracket 200 and the light guide plate 100 are fixed to each other. The first light source module 300 is fixed to the bracket 200 and is disposed corresponding to the light incident surface 132. The light incident surface 132 of the light guide plate 100 is configured to receive the light output by the first light source module 300 and output light from the light exit surface 110. The second light source module 400 is fixed to the bracket 200 and disposed on the same side of the bottom surface 120 of the light guide plate 100. The direction of the light output by the second light source module 400 is opposite to the direction of the light output by the light exit surface 110. The illuminating surface 110 is generally facing the user of the display, and the bottom surface 120 generally faces the item placed on the window or display stand.

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 disposed on the bracket 200 to reflect the light emitted by the light-emitting element 410. The light-emitting element 410 is also disposed on the bracket. 200, that is, the light-emitting element 410 and the reflective structure 420 are fixed through the bracket 200, and the reflective structure 420 is disposed such that the direction of the light output by the light-emitting element 410 is opposite to the direction of the light output by the light-emitting surface 110. In addition, the reflective structure 420 can be structurally designed with the object behind the transparent display, so that the light outputted by the light-emitting element 410 can be effectively transmitted to the object through the reflective structure 420. After the object reflects the light, the user can be one of the transparent displays. The item was observed on 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 first light source module 300 and the light-emitting elements 410 of the second light source module 400 are respectively arranged in a strip shape. In this way, the light emitting diode 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 mirror, the present invention is not limited thereto, and the reflective structure 420 may also be a planar mirror, a convex mirror or other optical module having a reflective function. Moreover, the reflective structure 420 can be a structure with adjustable angle of reflection, which can adjust the direction and angle of the light to match the items behind the transparent display.

As such, 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 is emitted by the light exit surface 110 of the light guide plate 100. The second light source The light output by the module 400 illuminates the object behind the transparent display, and the light is reflected by the object. The light reflected by the object passes through the light guide plate 100 and is emitted by the light exit surface 110. That is, the light output by the first light source module 300 and the light reflected by the second light source module 400 through the article are all emitted by the light emitting surface 110. When only the light of the first light source module 300 is emitted from the light-emitting surface 110, the transparent display exhibits a display effect; when only the light of the second light source module 400 is emitted from the light-emitting surface 110, the transparent display exhibits a transparent effect; when the light-emitting surface 110 has The light of the first light source module 300 and the light of the second light source module 400 are emitted, and the transparent display exhibits the effect of mixing the display and the display.

In this case, when only the light from the second light source module 400 is emitted from the light emitting surface 110, the transparent effect is better than the transparent effect of the light from the first light source module 300 and the light from the second light source module 400; On the other hand, 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 that of the light from the first light source module 300 and the light from the second light source module 400. By controlling the ratio of the switch or the light intensity of the first light source module 300 and the light-emitting element 410 or the second light source module 400, an appropriate transparency effect and display effect can be achieved on the transparent display.

Referring to Figure 2, a side view of a transparent display in accordance with still another embodiment of the present invention is shown. The foregoing embodiment is similar to the embodiment, and the difference lies in the structural design of the second light source module 400. It should be noted that none In the foregoing embodiment or the embodiment, the second light source module 400 has the same function, that is, the second light source module 400 outputs light in a direction of light outputted relative to the light exit surface 110 and is irradiated onto the article.

In one or more embodiments of the present invention, the second light source module 400 includes a light-emitting element 410, and the direction of the light output by the light-emitting element 410 is opposite to the direction of the light output by 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 object reflects the light, 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 a grating, a lens, a cymbal or other optical module, so that the light emitted by the illuminating element 410 can be better illuminated to the object behind the transparent display. Since this embodiment is an embodiment similar to the previous embodiment, the relevant details will not be described in detail herein. The light-emitting element 410 can be, for example, a light-emitting diode, a light bulb, or a Cold-Cathode Fluorescent Lamp (CCFL).

In this way, by controlling the ratio of the switch or the light intensity of the first light source module 300 and the light-emitting element 410 or the second light source module 400, the transparency effect and the 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. The shape of the bracket 200 is not in FIG. 1 or 2 is shown as a limit. In order to allow the light emitted by the light-emitting surface 110 of the light guide plate 100 and the light reflected by the object behind the transparent display to pass through the bracket 200, the bracket 200 is preferably disposed on the side of the light guide plate 100 to prevent the bracket 200 from blocking the light surface 110 and the bottom surface. 120. For example, the bracket 200 can be a frame, a frame and a light guide The sides of the board 100 are fixed to each other, and an opening is formed in the center of the frame to expose the light surface 110 and the bottom surface 120, so that the light reflected by the light output surface 110 or the light reflected by the object 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 bracket 200 on the light guide plate 100 overlap each other, that is, the second light source module 400 is located on the bracket 200 around the light guide plate 100, and The two light source modules 400 are shielded 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 articles can pass through the light guide plate 100 and be output to the person from the light emitting surface 110. eye.

In one or more embodiments of the present invention, the transparent display can control the ratio of the light intensity outputted by the opposite sides of the transparent display by controlling the first light source module 300 and the second light source module 400, wherein the first light source module 300 is a light source for providing a display effect to the transparent display, and the second light source module 400 is a light source for illuminating the object behind the transparent display to exhibit a transparent effect. By properly adjusting the ratio of the light intensity output by the first light source module 300 and the second light source module 400, the display and transparency effects of the display can be performed.

Referring to FIG. 3, FIG. 3 is a schematic exploded view of a transparent display according to an embodiment of the present invention. For convenience of description, the liquid crystal panel and the frame in FIG. 1 are not shown in FIG. The related description of the embodiments of the present invention is not affected. As shown in the figure, 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 disposed relative to the light incident surface 132 of the light guide plate 100, such that the first light source The light emitted by the 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 bottom surface 120 of the light guide plate 100. Side to illuminate items behind the transparent display. The second light source module 400 is disposed adjacent to the side surface 130 of the light guide plate 100, wherein, in this embodiment, the second light source module 400 is disposed to enter the light surface 132 and is opposite to each other. Side 130 of smooth surface 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, the present invention should not be limited thereto.

Referring to FIG. 4, FIG. 4 is an exploded perspective view of a transparent display in another embodiment of the present invention. The difference between the embodiment and the previous embodiment is that, in the foregoing embodiment, the arrangement direction of the first light source module 300 is parallel to the arrangement direction of the second light source module 400, and in the embodiment, the first light source mode The arrangement direction of the group 300 is perpendicular to the arrangement direction of the second light source module 400. As shown in 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 adjacent to the side surface 130 of the light guide plate 100 to prevent light reflected from the object from passing through the transparent display. In the embodiment, the second light source module The group 400 is disposed adjacent to the side 130 of the opposite light incident surface 132 and the side surface 130 of the light incident surface 132. The second light source module 400 includes the 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, the present invention should not be limited thereto.

Referring to FIG. 5, FIG. 5 is an exploded perspective view of a transparent display in still another embodiment of the present invention. The embodiment provides a transparent display, including a light guide plate 100, a plurality of first light source modules 300a, 300b, and more The second light source modules 400a and 400b, the plurality of third light source modules 300c and 300d, and the plurality of fourth light source modules 400c and 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. The side surface 130 is connected to the light surface 110 and the bottom surface 120. One of the side surfaces 130 is a light incident surface 132 for receiving the first surface. The light emitted by the light source modules 300a, 300b and the third light source modules 300c, 300d, and the first light source modules 300a, 300b and the third light source modules 300c, 300d are independently controlled and used for the light guide plate 100 Light is output from different areas.

The light incident surface 132 includes a plurality of first sub-light incident surfaces 132a and 132b and a plurality of second sub-light incident surfaces 132c and 132d. Each of the first light source modules 300a and 300b respectively corresponds to each of the first sub-light incident surfaces. 132a, 132b are disposed, and each of the third light source modules 300c, 300d is disposed corresponding to each of the second sub-light incident surfaces 132c, 132d. In this way, the light output by each of the first light source modules 300a, 300b or the third light source modules 300c, 300d can be respectively passed through each of the first sub-light incident surfaces 132a, 132b or the second sub-light incident surfaces 132c, 132d. The light entering the light guide plate 100, that is, the first sub-light incident surfaces 132a and 132b respectively receive the light output by the first light source modules 300a and 300b, and the second sub-light incident surfaces 132c and 132d respectively receive the output of the third light source modules 300c and 300d. Light.

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 respectively abut the first sub-region The light incident surfaces 132a and 132b and the second sub-light incident surfaces 132c and 132d, wherein the light output from the first light source modules 300a and 300b and the third light source modules 300c and 300d respectively enter the first sub-injection. Smooth surface 132a, 132b and second sub-input The light surfaces 132c and 132d are respectively emitted from the first regions 110a and 110b and the second regions 110c and 110d of the light-emitting surface 110, that is, the light emitted from the first regions 110a and 110b and the second regions 110c and 110d respectively comes from the light-emitting surfaces 132c and 132d. The first sub-light-emitting surfaces 132a and 132b adjacent to the first sub-light-incident surfaces 132c and 132d and the first light source modules 300a and 300b and the third light source modules 300c and 300d.

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

The second light source modules 400a, 400b and the fourth light source modules 400c, 400d are respectively configured to output light to the first space and the second space on the same side of the bottom surface 120, and the first space is located in the first area 110a. After the 110b, the second space is located behind the second area 110c, 110d. The first space and the second space are provided with objects. After the light is irradiated to the item, the second light source module 400a, 400b outputs the light to the first space. It will be reflected in the first space and transmitted to the human eye by the output of the first area 110a, 110b. Similarly, the light outputted to the second space by the fourth light source module 400c, 400d is reflected by the second space and transmitted to the human eye by the second region 110c, 110d.

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 Controls the proportion of light intensity output by the opposite sides of the transparent display.

In one or more embodiments of the present invention, the light guide plate 100 is double-sided light-in, and the first light source modules 300a and 300b and the third light source modules 300c and 300d are respectively disposed in pairs on both sides of the light guide plate 100. However, the present invention is not limited thereto, and the light guide plate 100 may also be a single side light. For example, the first region 110a can be disconnected into two left and right sub-regions, respectively adjacent to the corresponding first light source module 300a, and the two sub-regions respectively output light from the two first light source modules 300a on both sides. The two sub-areas are separated by a reflecting plate, and the reflecting plate is used for reflecting light, so that the light emitted by the first light source module 300a on the right side can be output only by the sub-area of the right side of the first area 110a, and cannot enter. A sub-area to the left of the first area 110a.

In one or more embodiments of the present invention, when the light intensity outputted by the first light source module 300a is greater than the light intensity output by the first light source module 300b, the first light source module 300a corresponds to the first region 110a. The first region 110b corresponding to the first light source module 300b tends to display a display image. Therefore, the intensity of the light output by the second light source module 400a should be smaller than the intensity of the light output by the second light source module 400b to reduce the first region. 110a is compared to the transparent image brightness of the first area 110b, so that the first area 110a tends to present a display image, so that the first area 110b tends to present a transparent image.

In one or more embodiments of the present invention, the first light source modules 300a, 300b and the third light source modules 300c, 300d are arranged in a direction parallel to the second light source modules 400a, 400b and the fourth light source module 400c, 400d alignment direction. Each of the first light source modules 300a, 300b and the third light source modules 300c, 300d corresponds to each of the second light source modules 400a, 400b and the fourth light source. The modules 400c, 400d are disposed such that the light reflected by the articles of each of the second light source modules 400a, 400b and the fourth light source modules 400c, 400d and the corresponding first light source modules 300a, 300b and the third light source module The light entering the light guide plate 100 from the first sub-light incident surface 132a, 132b and the second sub-light incident surface 132c, 132d of the light guide plate 100 can be from the first region 110a of the corresponding light exit surface 110. And 110b and the second regions 110c and 110d are emitted.

For example, the light outputted by the first light source module 300a enters the first sub-light incident surface 132a of the light guide plate 100, and is emitted by the first region 110a of the light-emitting surface 110 of the light guide plate 100. The second light source module 400a is The output light is irradiated to the first space behind the first area 110a, and the light is reflected by the object of the first space, and the light reflected by the first space will pass through the light guide plate 100 and be emitted by the first area 110a of the light exit surface 110. In this way, the first region 110a of the light-emitting surface 110 only emits light from the first light source module 300a or the second light source module 400a. Similarly, the first region 110b of the light-emitting surface 110 only emits light reflected from the first space of the first light source module 300b or the second light source module 400b behind the first region 110b.

Therefore, the light emitted by each of the first regions 110a and 110b and the second regions 110c and 110d of the light-emitting surface 110 can be respectively generated by the first light source modules 300a and 300b and the third light source modules 300c and 300d and the respective first The two light source modules 400a and 400b and the fourth light source modules 400c and 400d are controlled. 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 exhibits a transparent effect without a display effect, and the first region 110b serves as a display effect. .

In actual operation, due to technical difficulties, the light output by the first regions 110a, 110b and the second regions 110c, 110d may not completely come from the corresponding first light source modules 300a, 300b and the 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 source mainly from the corresponding area. For example, the boundary of the first region 110b adjacent to the first region 110a or the second region 110c is different from the first light source module 300b and the second light source module 400b. The light of the other first light source module 300a, the second light source module 400a or the third light source module 300c, and the fourth light source module 400c may be included, but this technically non-perfect ideal condition does not affect the embodiment of the present invention. The implementation of the sub-area control light source can still be achieved.

6A to 6D are schematic views showing the operation of the transparent display in still another embodiment of the present invention. The settings of its transparent display are depicted in Figure 5. In this embodiment, the first light source modules 300a and 300b and the third light source modules 300c and 300d and the second light source modules 400a and 400b and the fourth light source modules 400c and 400d are arranged in parallel. The following describes the operation method of 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 according to an image signal. The signal includes a plurality of sub-image signals, and the sub-image signals are respectively used to control the first light source modules 300a and 300b corresponding to the first regions 110a and 110b of the light-emitting surface 110, and the second light source modules 400a and 400b and the second region 110c. 110d corresponding third light source modules 300c, 300d and fourth light source modules 400c, 400d, and then partition adjustment The intensity of light output from opposite sides of a transparent display. In the following description, the light source that is turned off is indicated by a square that is not filled in the dot, and the square of the dot is filled to indicate the light source that is 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 The area 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 (generally referred to as the side of the transparent display relative to the consumer), and the light will be reflected by the article 500 and reflected. The light will pass through the first area 110a of the transparent display to the user's eyes in front of the transparent display, so that the user can view the item 500 behind the transparent display in the first area 110a. If the sub-picture signals of the first area 110b and the second area 110c, 110d are also transparent video signals, the same applies.

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 The area 110a corresponds to the first light source module 300a. In this case, the light outputted by the first light source module 300a is transmitted to the light guide plate 100 of the transparent display, and is emitted from the first region 110a of the light emitting surface 110 of the light guide plate 100. Devices 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 cause the light to display information, and then transmit the light to the eyes of the user in front of the transparent display, thus using The image area can be observed in the first area 110a. News. If the sub-image signals of the first area 110b and the second area 110c, 110d are also displaying image signals, the same is true.

In one or more embodiments of the present invention, a plurality of devices in front of the light guide plate 100 are also operated or transparent by the partition control of the image signals to match the first light source modules 300a and 300b and the second light source module 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-picture 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 displayed The first light source module 300a, the second light source module 400b, and the fourth light source module 400c, 400d are turned on, and the first light source module 300b, the third light source module 300c, 300d, and the second light source module are turned on. 400a. In this way, a transparent image can be presented simultaneously in the first region 110a to reveal the rear article 500 and display images in the first region 110b and the second regions 110c, 110d.

In the 6A to 6C, when each of the first regions 110a, 110b and the second regions 110c, 110d are operated, only the first light source modules 300a, 300b and the third light source modules 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 selected to be turned on, however this is not intended to limit the invention.

Referring to FIG. 6D, in one or more embodiments of the present invention, if the sub-image signal of one of the first regions 110a is a mixed image signal and the translucent half-display image signal, the first region 110a is simultaneously turned on. a light source module 300a and a second light source module 400a, and controlling relative light intensity of the first light source module 300a and the second light source module 400a according to the sub-image signal degree. In this case, the light output by the second light source module 400a is reflected by the object 500, and the reflected light will pass through the first area 110a of the transparent display. The light output by the first light source module 300a will be lighted by the light guide plate 100. The output of the first area 110a of the light-emitting surface 110, the user's eyes can simultaneously receive the light output by the two light sources in the first area 110a, and can control the relative light of the first light source module 300a and the second light source module 400a. The intensity is adjusted in the first area 110a to display the transparency of the displayed image. If the sub-picture signals of the first area 110b and the second area 110c, 110d are also mixed video signals, the same applies.

In summary, 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 to control switches or light intensity, so that the first The regions 110a, 110b and the second regions 110c, 110d exhibit a transparent or display effect.

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

The first light source module 300a, 300b, the second light source module 400a, 400b and the third light source module 300c, 300d are controlled according to an image signal. The image signal includes a plurality of sub-image signals, and the sub-image signals are respectively used. The first light source modules 300a, 300b and the second light source module corresponding to the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f and the fourth regions 110g, 110h of the light-emitting surface 110 are controlled. 400a, 400b and the third light source modules 300c, 300d, and then the light intensity outputted by the opposite sides of the transparent display is partitioned, as exemplified below.

Referring to FIG. 7A, in one or more embodiments of the present invention, if the sub-image signals of the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h are The transparent image signal turns off the first light source modules 300a, 300b and the third light source modules 300c, 300d, and turns on the second light source modules 400a, 400b. In this case, the light output by the second light source modules 400a, 400b will be transmitted to the article 500 behind the transparent display, and the light will be reflected by the article 500, and the reflected light will pass through the first region 110a of the transparent display. The 110b, the second region 110c, 110d, the third region 110e, 110f, or the fourth region 110g, 110h are transmitted to the eyes of the user in front of the transparent display, so that the user can observe the article 500 behind the transparent display.

Referring to FIG. 7B, in one or more embodiments of the present invention, if the sub-image signals of the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h are When the image signal is displayed, the second light source modules 400a and 400b are turned off, and the first light source modules 300a and 300b and the third light source modules 300c and 300d are turned on. In this case, the light output by the first light source modules 300a, 300b and the third light source modules 300c, 300d is transmitted to the light guide plate 100 of the transparent display, and is formed by the first region 110a of the light exit surface 110 of the light guide plate 100. , 110b, the second area 110c, The light emitted from the light guide plate 100 may pass through the devices Processing, the light is provided with display information, and then transmitted 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 110e, 110f, the first Image information is displayed in the four regions 110g and 110h.

Referring to FIG. 7C, if the sub-picture signals of the first area 110a, 110b, the second area 110c, 110d, the third area 110e, 110f, and the fourth area 110g, 110h are mixed video signals, the first light source module 300a is simultaneously turned on. 300b, the second light source modules 400a, 400b and the third light source modules 300c, 300d, and control the first light source modules 300a, 300b, the second light source modules 400a, 400b and the third light source module according to the sub-image signals Relative light intensity of 300c, 300d.

In this case, the light output by the second light source modules 400a, 400b is reflected by the article 500, and the reflected light will pass through the first regions 110a, 110b, the second regions 110c, 110d, and the third region 110e of the transparent display. , 110f or the fourth region 110g, 110h, and the light output by the first light source modules 300a, 300b and the third light source modules 300c, 300d will be the first region 110a, 110b, the second of the light emitting surface 110 of the light guide plate 100 The output of the area 110c, 110d, the third area 110e, 110f or the fourth area 110g, 110h, the user's eyes simultaneously receive the light output by the two light sources, and can control the first light source modules 300a, 300b and the third light source. The light intensity of the modules 300c, 300d relative to the second light source modules 400a, 400b is in the first region 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h achieve adjustment of display image transparency.

However, 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, and are not correspondingly arranged. problem. 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 that the first area 110a cannot be independently controlled. If the sub-image signal of the first area 110a is different from the first area 110b or the second area 110c, and the specific first area 110a is to be displayed by the information of the sub-picture signal, other areas, such as the first area 110b, may be generated. A darker condition, or a portion of the second region 110c, produces a brighter condition.

Referring to FIG. 7D, in one or more embodiments of the present invention, in order to solve 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, The problem of the parallel arrangement is that the light output by the second light source modules 400a, 400b and the fourth light source modules 400c, 400d can be separately irradiated to the first regions 110a, 110b and the second regions 110c, 110d. The second light source modules 400a and 400b are respectively irradiated to the first space behind the first regions 110a and 110b, and the fourth light source modules 400c and 400d are respectively irradiated to the second space behind the second regions 110c and 110d. The first space and the second space are provided with the article 500, and the light output by the second light source modules 400a, 400b and the fourth light source modules 400c, 400d is reflected by the object 500 in the first space and the second space. And transmitted to the human eye, so the human eye can get the information of the item behind the transparent display. The arrangement direction of the first light source modules 300a and 300b and the third light source modules 300c and 300d is perpendicular to the arrangement direction of the second light source modules 400a and 400b and the fourth light source modules 400c and 400d.

For example, if the sub-image signal of one of the first regions 110a is a transparent image signal, and the sub-image signals of the first region 110b and the second regions 110c and 110d are display image signals, the first light source module 300a and the second light source are turned off. The module 400b and the fourth light source module 400c, 400d open the first light source module 300b, the third light source module 300c, 300d and the second light source module 400a, as shown in the figure, the square representing the light source module, the square The dot is not filled to indicate that the light source is turned off, and the square fill dot indicates that the light source is turned on, wherein the second light source module 400a illuminates the article 500 located behind the first region 110a, and the first region 110b and the second region 110c, 110d cannot The second light source module 400b and the fourth light source modules 400c and 400d that are turned off are illuminated. In this way, the first region 110a is illuminated by the second light source module 400a to present a transparent image, and the first region 110b and the second region 110c, 110d are outputted from the first light source module 300b and the third light source module. The groups 300c, 300d are input to the light of the light guide plate 100 to present a display image. The user can simultaneously view the displayed image of the article 500 and the transparent display behind the transparent display in different areas of the transparent display.

In addition to the above methods, the second light source modules 400a and 400b may be designed as light sources with adjustable light source directions, and the positions or schedules of the light-emitting elements or mirrors may be mechanically moved and rotated to enable the second light source modules 400a and 400h. The light shines on the area and can also achieve good transparency or display effect.

Referring to FIG. 7E, in one or more embodiments of the present invention, in order to solve 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, The problem of the parallel arrangement is that the light guide plate 100 can be designed to be single-side light-in, and the output light intensity of a specific region thereof is controlled by the single first light source module 300a or the first light source module 300b. In detail, the light output by the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h of the light guide plate 100 is respectively derived from the adjacent first light source module. 300a, 300b, third light source modules 300c, 300d, fifth light source modules 300e, 300f, and seventh light source modules 300g, 300h, each of which has a separately controlled light source.

In one or more embodiments of the present invention, a suitable structure, such as a microstructure, exists between each of the first regions 110a, 110b, the second regions 110c, 110d, the third regions 110e, 110f, and the fourth regions 110g, 110h. Or a reflective layer or the like, such that the light input by the light source module in the light guide plate 100 outputs light only from a corresponding specific area, so as to prevent light of a light source corresponding to a certain area from entering a certain area. For example, the light input to the light guide plate 100 by the first light source module 300a can only be output from the first region 110a and cannot enter the first region 110b, and the light from the first light source module 300a cannot be output from the first region 110b. In this way, the light output from each area has a separately controlled light source.

By properly controlling the light source module switch, transparent or display images can be presented in different areas. Here, the square in the figure is filled with the squares of the dots. The light source is a light source that is turned off in a square that is not filled with dots. For example, as shown in the figure, 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 are turned off by turning on the second light source module 400a. A region 110a, a second region 110c, a third region 110e, and a fourth region 110g exhibit a transparent image; and the first light source module 300b, the third light source module 300d, and the fifth light source module are turned on by turning off the second light source module 400b. The group 300f and the seventh light source module 300h present display images in the first area 110b, the second area 110d, the third area 110f, and the fourth area 110h. The user can simultaneously view the displayed image of the article 500 and the transparent display behind the transparent display in different areas of the transparent display.

The embodiment of the invention provides a transparent display, wherein the transparent display has two light source modules with different light exit directions, wherein one light source module serves as a light source of the display, and the other light source module serves as a light source for illuminating the object, and the transparent display can thereby achieve Good transparency and display, no need to match the light source inside the window and window. In addition, the partition control can be used to control the transparent display to achieve different transparency effects and display effects in multiple areas.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and retouched without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Light guide plate

110‧‧‧Glossy surface

120‧‧‧ bottom

130‧‧‧ side

132‧‧‧Into the glossy surface

200‧‧‧ bracket

300‧‧‧First light source module

400‧‧‧Second light source module

410‧‧‧Lighting elements

420‧‧‧reflective structure

600‧‧‧ LCD panel

Claims (12)

A transparent display, comprising: a light guide plate, comprising a light emitting surface, a bottom surface and a plurality of side surfaces, wherein the light emitting surface is opposite to the bottom surface, the side surfaces are connected to the light emitting surface and the bottom surface, wherein one of the side surfaces is a a light-incident surface; a bracket fixed to the light guide plate; a first light source module fixed to the bracket and corresponding to the light-incident surface, the light-incident surface of the light guide plate for receiving the first light source module The light outputted by the group outputs light from the light emitting surface; a second light source module is fixed to the bracket and disposed on the same side of the bottom surface of the light guide plate, and the light direction output by the second light source module is opposite to the light source The direction of the light outputted by the light-emitting surface, wherein the projection of the second light source module and the bracket on the light guide plate overlap each other. The transparent display of claim 1, wherein the second light source module comprises: a light-emitting element; and a reflective structure, the reflective structure is disposed on the bracket for reflecting 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 exiting surface. The transparent display device of claim 1, wherein the second light source module comprises: a light emitting element for directly outputting the output relative to the light emitting surface The light direction outputs light. The transparent display device of claim 1, further comprising: a third light source module fixed to the bracket and disposed corresponding to the light incident surface, the light incident surface of the light guide plate is configured to receive the third The light output by the light source module outputs light from the light emitting surface, and the first light source module and the third light source module are independently controlled to output light to different regions of the light guide plate; and a fourth light source module And the second light source module is disposed on the same side of the bottom surface of the light guide plate, the direction of the light output by the fourth light source module is opposite to the direction of the light output by the light exiting surface, and the second light source module is The fourth light source modules are independently controlled to output light respectively behind different regions of the light guide plate. The transparent display device of claim 4, wherein the first light source module and the third light source module are arranged in a direction perpendicular to an arrangement direction of the second light source module and the fourth light source module. A transparent display, comprising: a light guide plate, comprising a light emitting surface, a bottom surface and a plurality of side surfaces, wherein the light emitting surface is opposite to the bottom surface, the side surfaces are connected to the light emitting surface and the bottom surface, wherein one of the side surfaces is a a light incident surface, wherein the light incident surface comprises a first and a second sub-light incident surface, and the first and second sub-light incident surfaces are connected to the light exit surface and the bottom surface; a bracket is fixed to the light guide plate; a first and a third light source module are fixed to the bracket and respectively disposed corresponding to the first and second sub-light incident surfaces, the first and second sub-light incident surfaces Receiving light rays outputted by the first and third light source modules respectively, and outputting light from the light emitting surface, wherein the light emitting surface includes a first and second regions respectively adjacent to the first sub-lighting surface and the first The light output from the first region is from the first light source module corresponding to the first sub-light incident surface of the first region, and the light outputted by the second region is adjacent to the first light source. The second light source module corresponding to the second sub-light incident surface of the second region; and a second light source module fixed to the bracket and disposed on the same side of the bottom surface of the light guide plate, the second light source module The direction of the light output by the group is opposite to the direction of the light output by the light emitting surface, wherein the first light source module and the second light source module are respectively used to control the light intensity outputted by the opposite sides of the transparent display. The transparent display device of claim 6, further comprising a fourth light source module, wherein the second and fourth light source modules respectively output light to the first and second spaces 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 second and fourth light source modules output light to the first and second spaces, and the first and second are reflected Two area output. The transparent display of claim 6, wherein the light intensity output by the first light source module is greater than the output of the third light source module The intensity of the light output by the second light source module is less than the intensity of the light output by the fourth light source module. A method for operating a transparent display, the method comprising: providing a transparent display, the transparent display comprising a first light source module, a second light source module, a third light source module, a fourth light source module, and a guide The light guide plate includes a light emitting surface, the light emitting surface includes a first and second regions, and the light guide plate receives the light output by the first light source module and outputs the first light source from the first light source surface. a light of the module, the light guide plate receives the light output by the third light source module, and outputs light from the third light source module from the second region of the light emitting surface, and the second and fourth light source modules output The second and fourth light source modules are respectively configured to output light to a first and second spaces on the same side of the bottom surface, and the first space and the second space are respectively opposite to the direction of the light output by the light emitting surface. The space is located behind the first and second regions, respectively, so that the second and fourth light source modules output light to the first and second spaces, and are reflected and output by the first and second regions; and according to an image Signal Controlling the first light source module, the second light source module, the third light source module, and the fourth light source module, the image signal includes a plurality of sub-image signals, and the sub-image signals are respectively used to control the first and second The light source module and the third and fourth light source modules further adjust the light intensity outputted by the opposite sides of the transparent display. The operator of the transparent display as described in claim 9 If the sub-image signal of 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. The method for operating a transparent display according to claim 9, wherein if the sub-image signal of the first area is a display image signal, the second light source module corresponding to the first area is closed, and the first area is turned on. Corresponding to the first light source module. The method for operating a transparent display according to claim 9, wherein if the sub-image signal of the first region is a mixed image signal, simultaneously opening the first light source module and the second light source module corresponding to the first region And controlling 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.