CN212302169U - LCD transparent display device and transparent display system - Google Patents
LCD transparent display device and transparent display system Download PDFInfo
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- CN212302169U CN212302169U CN202020794537.0U CN202020794537U CN212302169U CN 212302169 U CN212302169 U CN 212302169U CN 202020794537 U CN202020794537 U CN 202020794537U CN 212302169 U CN212302169 U CN 212302169U
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Abstract
The application provides a transparent display device of LCD and transparent display system, the transparent display device of LCD includes: the glass light guide plate comprises two opposite surfaces and a side surface positioned between the two surfaces; a light source disposed facing a side surface of the glass light guide plate; the liquid crystal screen is arranged on any one of the two surfaces of the glass light guide plate; the glass light guide plate is used for transmitting light rays emitted by the light source to the liquid crystal screen and supporting the liquid crystal screen. The liquid crystal display is arranged on one surface of the glass light guide plate, and the light source is arranged facing to the side surface of the glass light guide plate, so that the glass light guide plate can transmit light emitted by the light source to the liquid crystal display and can support the liquid crystal display through the glass light guide plate, a metal back plate is not needed to support the liquid crystal display, the structure of the LCD transparent display device can be simplified on one hand, and the LCD transparent display device is lighter and thinner; on the other hand, transparent display can be realized at lower cost, and the cost is reduced. Thereby facilitating the application of the LCD transparent display device to more scenes.
Description
Technical Field
The application relates to the field of liquid crystal display, in particular to an LCD transparent display device and a transparent display system.
Background
In the field of liquid crystal display, there are conventional non-transparent display modes, for example, a non-transparent display module is designed by using a liquid crystal panel, an optical film (diffuser/brightness enhancement film), a light guide Plate (PMMA), an optical film (reflector), a metal back plate, and a light source. And transparent display then has wider market and application prospect, for example adopts the transparent screen of box design mode: the light source is external light, and thus uniformity of light is poor. In addition, the conventional transparent display screen (OLED, organic light-Emitting display or organic light-Emitting semiconductor) has high price and heavy structural design, which limits the application and popularization of the transparent display technology.
SUMMERY OF THE UTILITY MODEL
An object of the embodiments of the present application is to provide an LCD transparent display device and a transparent display system, which can implement transparent display with low cost and a simplified structure, and can expand application scenarios of transparent display technologies.
In order to achieve the above object, embodiments of the present application are implemented as follows:
in a first aspect, an embodiment of the present application provides an LCD transparent display device, including: the glass light guide plate comprises two opposite surfaces and a side surface positioned between the two surfaces; a light source disposed facing a side surface of the glass light guide plate; a liquid crystal screen disposed on either one of the two surfaces of the glass light guide plate; the glass light guide plate is used for transmitting the light emitted by the light source to the liquid crystal screen and supporting the liquid crystal screen.
The liquid crystal display is arranged on one side of the glass light guide plate, and the light source is arranged facing to the side face of the glass light guide plate, so that the glass light guide plate can transmit light emitted by the light source to the liquid crystal display and can support the liquid crystal display through the glass light guide plate, and a metal back plate is not needed to support the liquid crystal display, so that the structure of the LCD transparent display device can be simplified (for example, the metal back plate is optimized), and the LCD transparent display device is lighter and thinner than a transparent screen designed by a conventional box body; on the other hand, the cost can be reduced, and the transparent display can be realized at low cost, so that the LCD transparent display device is favorably applied to more scenes.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the LCD transparent display device further includes: the inner wall of the positioning frame is provided with a groove of which the shape is matched with that of the glass light guide plate and that of the liquid crystal screen; the light source is arranged at the bottom of the groove, the edge part of the glass light guide plate and the edge part of the liquid crystal screen are embedded into the groove, the liquid crystal screen embedded into the groove is attached to the glass light guide plate, and the light source arranged at the bottom of the groove faces to the side face of the glass light guide plate.
Through positioning frame holding light source, glass light guide plate and LCD screen, and LCD screen and the attached setting of glass light guide plate can realize fixing LCD transparent display device, is favorable to improving LCD transparent display device's quality and reliability.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the grooves include a first groove with a relatively deep depth and a second groove with a relatively shallow depth, the shape of the first groove matches the shape of the glass light guide plate, the light source is disposed at the bottom of the first groove, and an edge portion of the glass light guide plate is embedded in the first groove; the shape of the second groove is matched with that of the liquid crystal screen, the edge part of the liquid crystal screen is embedded into the second groove, and the glass light guide plate embedded into the first groove and the liquid crystal screen embedded into the second groove are attached to each other.
The light source, the glass light guide plate and the liquid crystal screen are accommodated through the first groove and the second groove in the positioning frame, and the glass light guide plate embedded into the first groove and the liquid crystal screen embedded into the second groove are attached to each other, so that the fixing effect of the LCD transparent display device can be further improved.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, a buffer is disposed at the bottom of the second groove and abuts against the liquid crystal screen and the bottom of the second groove; and/or a buffer piece is arranged on the side wall, far away from the first groove, of the second groove and abuts against the liquid crystal screen and the side wall.
The bottom of the second groove is provided with the buffer part, the buffer part is abutted between the liquid crystal screen and the bottom of the second groove, the side wall far away from the first groove in the second groove is provided with the buffer part, the buffer part is abutted between the liquid crystal screen and the side wall, the direct touch of the liquid crystal screen and the positioning frame can be avoided as far as possible, when vibration caused by the outside exists, the impact force received by the edge of the liquid crystal screen can be buffered, and the quality of the LCD transparent display device is favorably ensured.
With reference to the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the light source is disposed on a light source substrate, and the light source substrate is attached to the bottom of the groove.
Through setting up the light source on the light source base plate, the light source base plate is attached in the bottom of recess, can guarantee the stability of light source position as far as possible, in addition, is favorable to the shading, avoids outside light to cause the interference to the light source, guarantees LCD transparent display device's display effect.
With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the number of the light sources is multiple, and the multiple light sources are arranged facing different side surfaces of the glass light guide plate.
Through setting up a plurality of light sources, and set up towards the different sides of glass light guide plate, can promote display effect.
With reference to the first aspect, or with reference to any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the LCD transparent display device further includes: and the semi-transparent semi-reflective film is arranged on one surface of the glass light guide plate, which is far away from the liquid crystal screen.
The one side through keeping away from the LCD screen on the glass light guide plate sets up half-transparent half-reflecting film, can reflect the light of keeping away from the one side outgoing of LCD screen from the glass light guide plate, recycles, and half-transparent half-reflecting film does not influence transparent display's transparent effect, can also reduce the loss of light.
With reference to the first aspect, or with reference to any one of the first to fifth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, a mesh point for changing a total reflection condition of light is disposed in the glass light guide plate, so that a surface of the glass light guide plate, on which the liquid crystal panel is disposed, uniformly emits light.
The mesh points used for changing the total reflection condition of the light are arranged in the glass light guide plate, so that the traveling direction of the light is changed, the light is uniformly emitted from one surface of the glass light guide plate facing the liquid crystal screen, and the display effect of the LCD transparent display device is improved.
With reference to the first aspect or any one of the first to fifth possible implementation manners of the first aspect, in an eighth possible implementation manner of the first aspect, the glass light guide plate is subjected to a rigid reinforcement treatment.
The glass light guide plate is subjected to rigid strengthening treatment, so that the strength of the glass light guide plate can be improved, and the quality of the LCD transparent display device is ensured.
In a second aspect, an embodiment of the present application further provides a transparent display system, including: a substrate; a plurality of LCD transparent display devices as described in the first aspect or any one of its possible implementations, arranged on a substrate; and the controller is connected with each LCD transparent display device and is used for controlling the LCD transparent display devices to display. In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a structural position relationship of an LCD transparent display device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an LCD transparent display device according to an embodiment of the present application.
Fig. 3 is a schematic view illustrating transmission of light in a glass light guide plate provided with dots according to an embodiment of the present disclosure.
Fig. 4 is a schematic view illustrating a transflective film disposed on one side of a glass light guide plate of an LCD transparent display device according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of an LCD transparent display device provided with a transflective film according to an embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of an LCD transparent display device including a positioning frame according to an embodiment of the present disclosure.
Fig. 7 is a schematic diagram of a transparent display system according to an embodiment of the present application.
Icon: 100-LCD transparent display device; 110-a glass light guide plate; 111-mesh points; 120-a liquid crystal screen; 130-a light source; 140-a semi-permeable and semi-reflective film; 150-a positioning frame; 151-grooves; 1511-first groove; 1512-a second groove; 152-a buffer; 160-a light source substrate; 200-transparent display systems; 210-a substrate; 220-controller.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a structural position relationship of an LCD (Liquid Crystal Display) transparent Display apparatus 100 provided in an embodiment of the present application, and fig. 2 is a schematic diagram of a structure of the LCD transparent Display apparatus 100 provided in the embodiment of the present application.
In the present embodiment, the LCD transparent display device 100 may include a glass light guide plate 110, a liquid crystal panel 120, and a light source 130.
The glass light guide plate 110 includes two opposite surfaces and a side surface between the two surfaces, for example, the two opposite surfaces are rectangular glass light guide plate 110, and the glass light guide plate has four side surfaces between the two surfaces (which is only an example and should not be construed as limiting the present application). The light source 130 may be disposed facing a side surface of the glass light guide plate 110, and the liquid crystal panel 120 may be disposed on any one of two surfaces of the glass light guide plate 110 to support the liquid crystal panel 120, so that the liquid crystal panel 120 may be supported without using a metal back plate, thereby implementing transparent display.
After the light source 130 emits light, the light may enter the glass light guide plate 110 through the side of the glass light guide plate 110 to be transmitted, and based on the principle of light transmission, the light may be emitted from the glass light guide plate 110: a part of the light may be emitted from the glass light guide plate 110 to a side where the liquid crystal panel 120 is disposed, so that the light may be transmitted to the liquid crystal panel 120 to display on the liquid crystal panel 120; a portion of the light may be emitted and lost from a surface of the glass light guide plate 110 away from the liquid crystal panel 120 or a side surface of the glass light guide plate 110.
In addition, the liquid crystal panel 120 may include a BM (black matrix) region, and the BM region is located in a portion of the liquid crystal panel 120 close to the light source 130, and is used for shielding light to improve a display effect.
The glass light guide plate 110 is used as a light guide component, and meanwhile, the liquid crystal screen 120 is supported, so that transparent display is realized, and the liquid crystal screen 120 is not required to be supported by a metal back plate, so that on one hand, the structure of the LCD transparent display device 100 can be simplified (for example, the metal back plate is optimized), and the LCD transparent display device 100 is lighter and thinner compared with a transparent screen designed by a conventional box body; on the other hand, the cost can be reduced, and the transparent display can be realized at low cost, thereby being beneficial to applying the LCD transparent display device 100 to more scenes.
In order to improve the display effect of the LCD transparent display device 100, a mesh 111 for changing the total reflection condition of light may be disposed in the glass light guide plate 110, so that the glass light guide plate 110 emits light uniformly from the side where the liquid crystal panel 120 is disposed.
Referring to fig. 3, fig. 3 is a schematic view illustrating light propagating in a glass light guide plate 110 with dots 111. In the present embodiment, the glass light guide plate 110 may be provided with dots 111 for changing the total reflection condition of the light (for example, the dots 111 are provided on the side far from the liquid crystal panel 120). When the light emitted from the light source 130 propagates in the glass light guide plate 110, due to the existence of the mesh points 111, the propagation path of the light in the glass light guide plate 110 is changed, so that more light can be emitted from the surface facing the liquid crystal panel 120, thereby improving the display effect and reducing the light loss. In addition, due to the change of the propagation path of the light in the glass light guide plate 110, a part of the light can be emitted from the surface facing the liquid crystal panel 120 after being propagated for a longer distance in the glass light guide plate 110, so that the light emitted from the glass light guide plate 110 is more uniform, and the display effect of the LCD transparent display device 100 is improved.
In order to improve the display effect of the LCD transparent display device 100, a transflective film 140 may be disposed on a surface of the glass light guide plate 110 away from the liquid crystal panel 120. Referring to fig. 4 and 5, fig. 4 is a schematic view illustrating a transflective film 140 disposed on one side of a glass light guide plate 110 of an LCD transparent display device 100, and fig. 5 is a schematic view illustrating a structure of the LCD transparent display device 100 with the transflective film 140 disposed thereon.
In this embodiment, the transflective film 140 may be disposed on a surface of the glass light guide plate 110 away from the liquid crystal panel 120, so that on one hand, light emitted from the surface of the glass light guide plate 110 away from the liquid crystal panel 120 can be reflected and reused, thereby reducing light loss and improving display effect; on the other hand, the provision of the transflective film 140 does not affect the transparency effect of the LCD transparent display device 100. The transflective film 140 may have different inverse transmittance ratios, and is not limited herein.
In addition, in order to ensure the supporting effect and strength of the glass light guide plate 110 on the liquid crystal panel 120, the glass light guide plate 110 may be subjected to a rigid reinforcement treatment. For example, the glass light guide plate 110 may be tempered, for example, physically tempered and/or chemically tempered, to improve the strength of the glass light guide plate 110, thereby being beneficial to ensuring the supporting effect of the glass light guide plate 110 on the liquid crystal panel 120.
In order to ensure the quality and reliability of the LCD transparent display device 100, the glass light guide plate 110 and the liquid crystal panel 120 may be fixed by the positioning frame 150. Referring to fig. 6, fig. 6 is a schematic structural diagram of an LCD transparent display device 100 including a positioning frame 150 according to an embodiment of the present disclosure.
In this embodiment, the inner wall of the positioning frame 150 is provided with a groove 151 having a shape matching the shape of the glass light guide plate 110 and the shape of the liquid crystal panel 120, where the shape of the groove 151 matches the shape of the glass light guide plate 110 and the shape of the liquid crystal panel 120, which means that the edge portion of the glass light guide plate 110 and the edge portion of the liquid crystal panel 120 can be embedded into the groove 151 together, the glass light guide plate 110 and the liquid crystal panel 120 embedded into the groove 151 are attached to each other to fix the glass light guide plate 110 and the liquid crystal panel 120, and the light source 130 can be disposed at the bottom of the groove 151 facing the side of the glass light guide plate 110. The positioning frame 150 accommodates the light source 130, the glass light guide plate 110 and the liquid crystal screen 120, so that the LCD transparent display device 100 can be fixed, and the quality and reliability of the LCD transparent display device 100 can be improved.
In order to ensure the position stability of the light source 130, the light source 130 may be disposed on the light source substrate 160, and the light source substrate 160 may be attached to the bottom of the groove 151, for example, by adhering a heat dissipation double-sided tape, by engaging a fastener, or by screwing, which is not limited herein.
Through setting up light source 130 on light source substrate 160, light source substrate 160 is attached in the bottom of recess 151, can guarantee the stability of light source 130 position as far as possible, in addition, is favorable to the shading, avoids outside light to cause the interference to light source 130, guarantees the display effect of LCD transparent display device 100.
In order to improve the fixing effect of the positioning frame 150 and further improve the display effect of the LCD transparent display device 100. For example, the grooves 151 formed on the inner wall of the positioning frame 150 may include a first groove 1511 having a relatively deep depth and a second groove 1512 having a relatively shallow depth.
The shape of the first groove 1511 may match the shape of the glass light guide plate 110, the light source 130 may be disposed at the bottom of the first groove 1511, and the edge portion of the glass light guide plate 110 is embedded in the first groove 1511; the shape of the second recess 1512 may match the shape of the liquid crystal panel 120, the edge portion of the liquid crystal panel 120 is embedded in the second recess 1512, and the glass light guide plate 110 embedded in the first recess 1511 and the liquid crystal panel 120 embedded in the second recess 1512 are attached to each other.
The first groove 1511 and the second groove 1512 in the positioning frame 150 are used for accommodating the light source 130, the glass light guide plate 110 and the liquid crystal panel 120, and the glass light guide plate 110 embedded in the first groove 1511 and the liquid crystal panel 120 embedded in the second groove 1512 are attached to each other, so that the fixing effect of the LCD transparent display device 100 can be further improved. Moreover, the depth of the first groove 1511 is deep, and the light source 130 is disposed at the bottom of the first groove 1511, so that a good light shielding effect can be achieved, the light source 130 is prevented from being interfered by external light, and the light of the light source 130 can be prevented from directly irradiating the liquid crystal screen 120, thereby improving the display effect of the LCD transparent display device 100.
In order to reduce scraping and collision between the lcd panel 120 and the positioning frame 150 as much as possible, in this embodiment, a buffer 152 may be disposed at the bottom of the second groove 1512 and abut between the lcd panel 120 and the bottom of the second groove 1512; the buffer 152 may also be disposed on a sidewall of the second groove 1512 away from the first groove 1511, and abuts between the liquid crystal panel 120 and the sidewall. On one hand, the direct touch between the liquid crystal panel 120 and the positioning frame 150 can be avoided as much as possible, and when there is vibration caused by the outside, the impact force on the edge of the liquid crystal panel 120 can be buffered, which is beneficial to ensuring the quality of the LCD transparent display device 100. On the other hand, when the buffer 152 disposed on the sidewall far from the first groove 1511 abuts against the liquid crystal panel 120 and the sidewall, the liquid crystal panel 120 and the glass light guide plate 110 can be tightly attached to each other, so as to support the liquid crystal panel 120 by the glass light guide plate 110, and make the liquid crystal panel 120 and the glass light guide plate 110 more stable.
In this embodiment, the number of the light sources 130 may be multiple (e.g., 3, 4, etc.) to increase the light intensity, so as to improve the display effect of the LCD transparent display device 100. In order to make the display of the LCD 120 more uniform, the plurality of light sources 130 may be disposed facing different sides of the glass light guide plate 110, for example, one light source 130 is disposed on each side, or one or more light sources 130 are disposed on two opposite sides of the glass light guide plate 110, so that the light emitted from the glass light guide plate 110 is more uniform, and the display effect of the LCD transparent display device 100 is improved.
Referring to fig. 7, an embodiment of the present application further provides a transparent display system 200, including: a substrate 210; a plurality of LCD transparent display devices 100 disposed on the substrate 210; and a controller 220 connected to each LCD transparent display device 100 for controlling the LCD transparent display device 100 to display.
In summary, the embodiment of the present application provides an LCD transparent display device and a transparent display system, in which a liquid crystal display is disposed on one side of a glass light guide plate, and a light source is disposed facing a side surface of the glass light guide plate, the glass light guide plate can transmit light emitted by the light source to the liquid crystal display, and the liquid crystal display can be supported by the glass light guide plate, so that a metal back plate is not needed to support the liquid crystal display, and on one hand, the structure of the LCD transparent display device can be simplified, and the LCD transparent display device is lighter and thinner; on the other hand, transparent display can be realized at lower cost, and the price is reduced. Therefore, the LCD transparent display device is favorably applied to more scenes, and the application scene of the transparent display technology is expanded.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. An LCD transparent display device, comprising:
the glass light guide plate comprises two opposite surfaces and a side surface positioned between the two surfaces;
a light source disposed facing a side surface of the glass light guide plate;
a liquid crystal screen disposed on either one of the two surfaces of the glass light guide plate;
the glass light guide plate is used for transmitting the light rays emitted by the light source to the liquid crystal screen and supporting the liquid crystal screen;
wherein the LCD transparent display device further comprises: the semi-transparent semi-reflective film is arranged on one surface, far away from the liquid crystal screen, of the glass light guide plate; or, the glass light guide plate is provided with a mesh point for changing the total reflection condition of the light, so that the side of the glass light guide plate, which is provided with the liquid crystal screen, uniformly emits light.
2. The LCD transparent display device according to claim 1, further comprising:
the inner wall of the positioning frame is provided with a groove of which the shape is matched with that of the glass light guide plate and that of the liquid crystal screen;
the light source is arranged at the bottom of the groove, the edge part of the glass light guide plate and the edge part of the liquid crystal screen are embedded into the groove, the liquid crystal screen embedded into the groove is attached to the glass light guide plate, and the light source arranged at the bottom of the groove faces to the side face of the glass light guide plate.
3. The LCD transparent display device of claim 2, wherein the grooves comprise a first groove of relatively deep depth and a second groove of relatively shallow depth,
the shape of the first groove is matched with that of the glass light guide plate, the light source is arranged at the bottom of the first groove, and the edge part of the glass light guide plate is embedded into the first groove;
the shape of the second groove is matched with that of the liquid crystal screen, the edge part of the liquid crystal screen is embedded into the second groove, and the glass light guide plate embedded into the first groove and the liquid crystal screen embedded into the second groove are attached to each other.
4. The LCD transparent display device according to claim 3, wherein a buffer is disposed at the bottom of the second groove and abuts between the LCD screen and the bottom of the second groove; and/or the presence of a gas in the gas,
and a buffer piece is arranged on the side wall of the second groove far away from the first groove and is abutted between the liquid crystal display and the side wall.
5. The LCD transparent display device of claim 2, wherein the light source is disposed on a light source substrate attached to the bottom of the groove.
6. The LCD transparent display device of claim 1, wherein the number of the light sources is plural, and the plural light sources are disposed facing different sides of the glass light guide plate.
7. The LCD transparent display device according to any one of claims 1 to 6, wherein the glass light guide plate is subjected to a rigid reinforcement treatment.
8. A transparent display system, comprising:
a substrate;
a plurality of the LCD transparent display devices of any one of claims 1 to 7 disposed on a substrate;
and the controller is connected with each LCD transparent display device and is used for controlling the LCD transparent display devices to display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020794537.0U CN212302169U (en) | 2020-05-13 | 2020-05-13 | LCD transparent display device and transparent display system |
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| CN202020794537.0U CN212302169U (en) | 2020-05-13 | 2020-05-13 | LCD transparent display device and transparent display system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904473A (en) * | 2021-01-28 | 2021-06-04 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and head-mounted display device |
| CN113539135A (en) * | 2021-08-02 | 2021-10-22 | 宁波视睿迪光电有限公司 | Light box and display device |
-
2020
- 2020-05-13 CN CN202020794537.0U patent/CN212302169U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904473A (en) * | 2021-01-28 | 2021-06-04 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and head-mounted display device |
| CN113539135A (en) * | 2021-08-02 | 2021-10-22 | 宁波视睿迪光电有限公司 | Light box and display device |
| CN113539135B (en) * | 2021-08-02 | 2023-08-01 | 宁波视睿迪光电有限公司 | Light box and display device |
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