Display module and display device

Abstract

The utility model provides a display module and a display device. The display module comprises a first anti-reflection layer and a second anti-reflection layer, a liquid crystal display layer; the second anti-reflection layer is arranged on the side, away from the first anti-reflection layer, of the liquid crystal display layer, and the second anti-reflection layer and the first anti-reflection layer are located on the two opposite sides of the liquid crystal display layer respectively; the solar power generation layer is used for receiving light rays transmitted through the second anti-reflection layer and converting light energy into electric energy so as to supply power to the liquid crystal display layer, and the solar power generation layer is arranged on the side, away from the liquid crystal display layer, of the second anti-reflection layer. By adopting the technical means, the conversion electric quantity of the solar power generation layer can be improved, the power consumption of the display module can be reduced, the solar power generation layer is arranged on the light emitting side of the liquid crystal display layer, liquid crystal display and solar power generation are integrated, the thickness and area of the display device can be reduced, the steps are few during installation, and more convenience is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and more specifically, to a display module and a display device. Background Art

[0002] Reflective LCD adds a reflective layer inside the display module. Ambient light enters the reflective panel and is reflected by the reflective layer. Through the modulation of the panel, the desired image is formed. Reflective LCD displays images by reflecting ambient light. If the ambient light is bright enough, the display effect will be better and the power consumption will be low. The main power consumption of liquid crystal (LCD) products occurs mainly in the backlight drive part and the panel-side TFT drive. The backlight source is removed, and the power consumption is lower than that of conventional transmissive LCD liquid crystal display technology.

[0003] Most existing low-power displays separate the solar panel from the liquid crystal display and use the solar panel to generate electricity to reduce the power consumption of the low-power display. However, due to factors such as the device structure, the thickness of the low-power display is thickened or the area is enlarged, which is not good for appearance and inconvenient to install. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a display module to solve the technical problem of inconvenient installation of low-power display in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present application is: to provide a display module, including:

[0006] a first anti-reflection layer;

[0007] A liquid crystal display layer, used to control the transmission and reflection of light to display patterns;

[0008] A second anti-reflection layer is disposed on a side of the liquid crystal display layer away from the first anti-reflection layer, the second anti-reflection layer and the first anti-reflection layer are respectively located on two opposite sides of the liquid crystal display layer; and

[0009] a solar power generation layer, used for receiving light transmitted through the second anti-reflection layer and converting light energy into electrical energy to supply power to the liquid crystal display layer, wherein the solar power generation layer is arranged on a side of the second anti-reflection layer away from the liquid crystal display layer;

[0010] The first anti-reflection layer is used to reduce the reflection of external light, and the second anti-reflection layer is used to reduce the reflection of light transmitted by the liquid crystal display layer.

[0011] By adopting the above technical means, when external light is directed toward the first anti-reflection layer from the side of the first anti-reflection layer away from the liquid crystal display layer, the light passes through the first anti-reflection layer and is directed toward the liquid crystal display layer, the liquid crystal display layer reflects part of the light, and the other part of the light is transmitted through the liquid crystal display layer, so that the reflected light forms a display pattern. The first anti-reflection layer is used to prevent the reflection of external light, so that the intensity of the incident light can be increased and the clarity of the display pattern can be improved; the second anti-reflection layer is used to prevent the reflection of the light transmitted by the liquid crystal display layer, so that the reflection of the light after the liquid crystal display layer is transmitted can be reduced, which helps to reduce the intensity of the light in the non-display pattern area, thereby increasing the difference in light intensity between the display pattern area and the non-realistic pattern area, and improving the clarity of the display pattern. Moreover, the second anti-reflection layer increases the light intensity directed toward the solar power generation layer, which is conducive to increasing the amount of electricity converted by the solar power generation layer and reducing the power consumption of the display module. The solar power generation layer is set on the light-emitting side of the liquid crystal display layer, and the liquid crystal display and solar power generation are integrated together, which is conducive to reducing the thickness and area of ​​the display module, and the installation steps are fewer and more convenient.

[0012] In one embodiment, the liquid crystal display layer includes a first transparent substrate, a first conductive layer, a liquid crystal layer, a second conductive layer and a second transparent substrate, the first transparent substrate is located between the liquid crystal layer and the first anti-reflection layer, the first conductive layer is arranged on a side of the first transparent substrate close to the liquid crystal layer, the second transparent substrate is located between the liquid crystal layer and the second anti-reflection layer, and the second conductive layer is arranged on a side of the second transparent substrate close to the liquid crystal layer.

[0013] By adopting the above technical means, liquid crystal reflective imaging can be controlled.

[0014] In one embodiment, the refractive index of the second anti-reflection layer is equal to the refractive index of the second transparent substrate.

[0015] The above technical means are adopted to help reduce the reflection of light.

[0016] In one embodiment, the first transparent substrate and / or the second transparent substrate is a transparent glass substrate.

[0017] By adopting the above technical means, the light transmittance can be guaranteed.

[0018] In one embodiment, the solar power generation layer includes a third conductive layer, a light absorbing layer, a hole transport layer and an electrode layer, and the third conductive layer, the light absorbing layer, the hole transport layer and the electrode layer are arranged in sequence from the second anti-reflection layer to the second anti-reflection layer away from the first anti-reflection layer.

[0019] By adopting the above technical means, light energy can be converted into electrical energy.

[0020] In one embodiment, the light absorbing layer is a perovskite light absorbing layer.

[0021] By adopting the above-mentioned technical means, it is helpful to convert sunlight into electrical energy.

[0022] In one embodiment, the first anti-reflection layer and / or the second anti-reflection layer is one of a MgF2 anti-reflection layer, a Sb2O3 anti-reflection layer, and a ZrO2 anti-reflection layer.

[0023] By adopting the above technical means, it is helpful to reduce reflection.

[0024] In one embodiment, the liquid crystal display layer is a bistable liquid crystal display layer.

[0025] The above technical means are adopted to improve the display effect of the liquid crystal display layer.

[0026] In one embodiment, the display module further includes a protective adhesive layer, and the protective adhesive layer is located on a side of the solar power generation layer away from the first anti-reflection layer.

[0027] The use of the above technical means is helpful in ensuring the safety of the display module.

[0028] An embodiment of the present application also provides a display device, comprising the display module described in any of the above embodiments.

[0029] By adopting the above technical means, the liquid crystal display and solar power generation are integrated, which is beneficial to reducing the thickness and area of ​​the display device and facilitating the assembly of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of light within a display module provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the cross-sectional structure of a display module provided in an embodiment of the present application;

[0033] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the liquid crystal display layer.

[0034] Among them, the reference numerals in the figure are:

[0035] 100. Display module;

[0036] 10. A first anti-reflection layer;

[0037] 20, liquid crystal display layer; 21, first transparent substrate; 22, first conductive layer; 23, liquid crystal layer; 231, plastic frame; 232, spacer; 233, liquid crystal; 24, second conductive layer; 25, second transparent substrate;

[0038] 30. a second anti-reflection layer;

[0039] 40. Solar power generation layer; 41. Third conductive layer; 42. Light absorption layer; 43. Hole transport layer; 44. Electrode layer;

[0040] 50. Protective rubber layer. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] Please also read Figures 1 to 3, the display module 100 provided by the embodiment of the present application is now described. The display module 100 includes a first anti-reflection layer 10, a liquid crystal display layer 20, a second anti-reflection layer 30 and a solar power generation layer 40; the liquid crystal display layer 20 is used to control the transmission and reflection of light to display a pattern; the second anti-reflection layer 30 is arranged on the side of the liquid crystal display layer 20 away from the first anti-reflection layer 10, and the second anti-reflection layer 30 and the first anti-reflection layer 10 are respectively located on the opposite sides of the liquid crystal display layer 20; the solar power generation layer 40 is used to receive the light transmitted through the second anti-reflection layer 30 and convert the light energy into electrical energy to supply power to the liquid crystal display layer 20, and the solar power generation layer 40 is arranged on the side of the second anti-reflection layer 30 away from the liquid crystal display layer 20; wherein, the first anti-reflection layer 10 is used to reduce the reflection of external light, and the second anti-reflection layer 30 is used to reduce the reflection of the light transmitted by the liquid crystal display layer 20. When external light is emitted from the side of the first anti-reflection layer 10 away from the liquid crystal display layer 20 to the first anti-reflection layer 10, the light passes through the first anti-reflection layer 10 to the liquid crystal display layer 20, and the liquid crystal display layer 20 reflects a part of the light, and the other part of the light is transmitted through the liquid crystal display layer 20, so that the reflected light forms a display pattern. The first anti-reflection layer 10 is used to prevent the reflection of external light, so that the intensity of the incident light can be increased and the clarity of the display pattern can be improved; the second anti-reflection layer 20 is used to prevent the reflection of the light transmitted by the liquid crystal display layer 30, so that the reflection of the light after the liquid crystal display layer 20 is transmitted can be reduced, which helps to reduce the intensity of the light in the non-display pattern area, thereby increasing the difference in light intensity between the display pattern area and the non-realistic pattern area, and improving the clarity of the display pattern. Moreover, the second anti-reflection layer 30 increases the intensity of light directed to the solar power generation layer 40, which is beneficial to increasing the amount of electricity converted by the solar power generation layer 40 and reducing the power consumption of the display module 100. The solar power generation layer 40 is arranged on the light-emitting side of the liquid crystal display layer 20, and the liquid crystal display is integrated with solar power generation, which is beneficial to reducing the thickness and area of ​​the display module 100, and the installation process is less and more convenient.

[0046] In one embodiment of the present application, see Figures 1 to 3 The liquid crystal display layer 20 includes a first transparent substrate 21, a first conductive layer 22, a liquid crystal layer 23, a second conductive layer 24, and a second transparent substrate 25. The first transparent substrate 21 is located between the liquid crystal layer 23 and the first anti-reflection layer 10, the first conductive layer 22 is arranged on a side of the first transparent substrate 21 close to the liquid crystal layer 23, the second transparent substrate 25 is located between the liquid crystal layer 23 and the second anti-reflection layer 30, and the second conductive layer 24 is arranged on a side of the second transparent substrate 25 close to the liquid crystal layer 23. The first conductive layer 22 and the second conductive layer 24 are used to drive the liquid crystal layer 23 to control the liquid crystal layer 23 to display images.

[0047] Optionally, the liquid crystal layer 23 includes a plastic frame 231, a spacer 232 and a liquid crystal 233. The spacer 232 and the liquid crystal 233 are evenly distributed in the plastic frame 231, and the spacer 232 separates the first conductive layer 22 from the second conductive layer 24. When the first conductive layer 22 and the second conductive layer 24 are turned on or off, the direction of the liquid crystal 233 can be controlled to control the transmission or reflection of light, thereby displaying an image.

[0048] The first conductive layer 22 and the second conductive layer 24 may be made of indium tin oxide, so that the voltage applied to the liquid crystal 233 can be controlled to control the direction of the liquid crystal 233 .

[0049] In one embodiment of the present application, see Figures 1 to 3 , the refractive index of the second anti-reflection layer 30 is equal to the refractive index of the second transparent substrate 25. In this way, when the light is emitted from the second transparent substrate 25 to the second anti-reflection layer 30, the direction of the light can remain unchanged, and the reflection of the light passing through the second transparent substrate 25 on the side of the second anti-reflection layer 30 close to the second transparent substrate 25 can be reduced.

[0050] In one embodiment of the present application, see Figures 1 to 3 , the first transparent substrate 21 is a transparent glass substrate. The use of a transparent glass substrate can ensure light transmittance, improve display clarity and the amount of light converted into electrical energy. Of course, in this embodiment, the second transparent substrate 25 can also be a transparent glass substrate, so that the light transmittance of the second transparent substrate 25 can be guaranteed.

[0051] In one embodiment of the present application, see Figures 1 to 3 The second transparent substrate 25 is a transparent glass substrate. The transparent glass substrate can ensure light transmittance, improve display clarity and the amount of light converted into electrical energy.

[0052] In one embodiment of the present application, see Figures 1 to 3 The solar power generation layer 40 includes a third conductive layer 41, a light absorbing layer 42, a hole transport layer 43 and an electrode layer 44, and the third conductive layer 41, the light absorbing layer 42, the hole transport layer 43 and the electrode layer 44 are arranged in sequence from the second anti-reflection layer 30 to the second anti-reflection layer 30 away from the first anti-reflection layer 10. By using the light absorbing layer 42 and the hole transport layer 43, the light transmitted through the liquid crystal display layer 20 can be converted into electric energy, and the third conductive layer 41 and the electrode layer 44 can output the electric energy to power the liquid crystal display layer 20. Optionally, the electrode layer 44 can be a metal electrode to output the electric energy.

[0053] In one embodiment of the present application, see Figures 1 to 3 The light absorbing layer 42 is a perovskite light absorbing layer. In this way, the light energy in the sunlight can be converted into electrical energy.

[0054] In one embodiment of the present application, see Figures 1 to 3 , the first anti-reflection layer 10 is one of the MgF2 anti-reflection layer, the Sb2O3 anti-reflection layer or the ZrO2 anti-reflection layer. By adopting the MgF2 anti-reflection layer, the Sb2O3 anti-reflection layer or the ZrO2 anti-reflection layer, the reflection of light can be effectively reduced and the efficiency of light energy utilization can be improved. Optionally, the MgF2 anti-reflection layer can be made of MgF2, or MgF2 can be made of a composite material with other materials; the Sb2O3 anti-reflection layer can be made of Sb2O3, or Sb2O3 can be made of a composite material with other materials; ZrO2 can be made of ZrO2, or ZrO2 can be made of a composite material with other materials. In this embodiment, the second anti-reflection layer 30 can also be one of the MgF2 anti-reflection layer, the Sb2O3 anti-reflection layer or the ZrO2 anti-reflection layer, so that the reflection of light by the second anti-reflection layer 30 can be reduced, and the efficiency of converting light energy into electrical energy can be improved.

[0055] In one embodiment of the present application, see Figures 1 to 3 The second anti-reflection layer 30 is one of a MgF2 anti-reflection layer, a Sb2O3 anti-reflection layer, and a ZrO2 anti-reflection layer. By using the MgF2 anti-reflection layer, the Sb2O3 anti-reflection layer, and the ZrO2 anti-reflection layer, the reflection of light can be effectively prevented and the light energy utilization efficiency can be improved.

[0056] In one embodiment of the present application, see Figures 1 to 3 The liquid crystal display layer 20 is a bistable liquid crystal display layer. The use of a bistable liquid crystal display layer is beneficial to improving the display effect.

[0057] In one embodiment of the present application, see Figures 1 to 3 The display module 100 further includes a protective adhesive layer 50, which is located on a side of the solar power generation layer 40 away from the first anti-reflection layer 10. By using the protective adhesive layer 50, the safety performance of the display module 100 can be improved.

[0058] See also Figures 1 to 3 The embodiment of the present application also provides a display device, including the display module 100 in any of the above embodiments. By adopting the display module 100 in the above embodiments, integrating liquid crystal display and solar power generation, the area and thickness of the display module 100 are reduced, the number of panels is reduced, the wiring is simplified, and the installation is easier.

[0059] In one embodiment of the present application, see Figures 1 to 3The display module 100 further includes a controller, which is used to receive the electric energy output by the solar power generation layer 40 and supply power to the liquid crystal display layer 20, and the controller is electrically connected to the solar power generation layer 40 and the liquid crystal display layer 20. In this way, the electric energy output by the solar power generation layer 40 can be converted into energy for the liquid crystal display layer 20, thereby improving the utilization rate of light energy and reducing power consumption.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display module, It is characterized in that include: a first anti-reflection layer; A liquid crystal display layer, used to control the transmission and reflection of light to display patterns; A second anti-reflection layer is disposed on a side of the liquid crystal display layer away from the first anti-reflection layer, and the second anti-reflection layer and the first anti-reflection layer are respectively located on two opposite sides of the liquid crystal display layer; as well as, a solar power generation layer, used for receiving light transmitted through the second anti-reflection layer and converting light energy into electrical energy to supply power to the liquid crystal display layer, wherein the solar power generation layer is arranged on a side of the second anti-reflection layer away from the liquid crystal display layer; The first anti-reflection layer is used to reduce the reflection of external light, and the second anti-reflection layer is used to reduce the reflection of light transmitted by the liquid crystal display layer.

2. The display module according to claim 1, Features: The liquid crystal display layer includes a first transparent substrate, a first conductive layer, a liquid crystal layer, a second conductive layer and a second transparent substrate, the first transparent substrate is located between the liquid crystal layer and the first anti-reflection layer, the first conductive layer is arranged on a side of the first transparent substrate close to the liquid crystal layer, the second transparent substrate is located between the liquid crystal layer and the second anti-reflection layer, and the second conductive layer is arranged on a side of the second transparent substrate close to the liquid crystal layer.

3. The display module according to claim 2, Features: The refractive index of the second anti-reflection layer is equal to the refractive index of the second transparent substrate.

4. The display module according to claim 2, Features: The first transparent substrate and / or the second transparent substrate is a transparent glass substrate.

5. The display module according to claim 1, Features: The solar power generation layer includes a third conductive layer, a light absorbing layer, a hole transport layer and an electrode layer, and the third conductive layer, the light absorbing layer, the hole transport layer and the electrode layer are arranged in sequence from the second anti-reflection layer to the second anti-reflection layer away from the first anti-reflection layer.

6. The display module according to claim 5, Features: The light absorbing layer is a perovskite light absorbing layer.

7. The display module according to any one of claims 1 to 6, Features: The first anti-reflection layer and / or the second anti-reflection layer is MgF 2 Anti-reflection layer, Sb 2 O 3 Anti-reflection layer, ZrO 2 A type of anti-reflective layer.

8. The display module according to any one of claims 1 to 6, Features: The liquid crystal display layer is a bistable liquid crystal display layer.

9. The display module according to any one of claims 1 to 6, Features: The display module further includes a protective adhesive layer, and the protective adhesive layer is located on a side of the solar power generation layer away from the first anti-reflection layer.

10. A display device, Features: Comprising a display module as described in any one of claims 1-9.

Images