Display panel and display device

Abstract

The embodiment of the utility model discloses a display panel and a display device, the display panel comprises a liquid crystal box, a light source module and a solar cell backboard, and the light source module is located on the light emitting side of the liquid crystal box; the solar cell backboard is located on the side, away from the light source module, of the liquid crystal box and connected with the liquid crystal box and / or the light source module. According to the technical scheme provided by the embodiment of the utility model, the light source module is arranged on the light emitting side of the liquid crystal box, so that when the ambient light is dark, a supplementary light source is provided for the display panel through the light source module, a good display effect can be ensured, and the phenomenon that a display picture is dark due to insufficient light is avoided. In addition, the solar cell backboard is connected with the liquid crystal box and / or the light source module, the solar cell backboard provides power for the liquid crystal box and / or the light source module, and energy conservation and environmental protection are facilitated.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to display technical field, especially display panel and display device. BACKGROUND

[0002] Reflective display panel is increasingly demanded due to its low power consumption, no harm to eyes and other advantages.

[0003] The existing reflective display panel has the problems of dark display picture and poor visual effect, and the use time of the existing reflective display panel is affected by the battery power, which is not conducive to improving the user experience effect. UTILITY MODEL CONTENT

[0004] The embodiment of the utility model provides a kind of display panel and display device, to improve display effect and user experience effect.

[0005] According to an aspect of the utility model, a display panel is provided, comprising:

[0006] Liquid crystal box;

[0007] Light source module, the light source module is located at the light exit side of the liquid crystal box;

[0008] Solar cell backboard, the solar cell backboard is located at the side of the liquid crystal box away from the light source module, and the solar cell backboard is connected with the liquid crystal box and / or the light source module.

[0009] Optionally, the solar cell backboard includes a photoelectric conversion layer, and the photoelectric conversion layer is connected with the liquid crystal box and / or the light source module through a circuit board.

[0010] Optionally, the photoelectric conversion layer has a light-absorbing surface, and the light-absorbing surface of the photoelectric conversion layer faces the side of the photoelectric conversion layer close to the liquid crystal box.

[0011] Optionally, the photoelectric conversion layer has a light-absorbing surface, and the light-absorbing surface of the photoelectric conversion layer faces the side of the photoelectric conversion layer away from the liquid crystal box.

[0012] Optionally, the light source module includes an auxiliary light source and a light guide plate.

[0013] The light guide plate is located at the side of the liquid crystal box away from the solar cell backboard, and the auxiliary light source is located at the side of the light guide plate.

[0014] Optionally, the liquid crystal box comprises a first substrate, a liquid crystal layer and a second substrate, the liquid crystal layer is located between the first substrate and the second substrate, a common electrode is arranged on the side of the first substrate close to the liquid crystal layer, and a plurality of pixel electrodes are insulatively arranged on the side of the second substrate close to the liquid crystal layer.

[0015] The solar cell back plate is located on the side of the second substrate away from the liquid crystal layer.

[0016] Optionally, the liquid crystal layer is a dye liquid crystal layer; a reflective layer is arranged on the side of the second substrate away from the liquid crystal layer, and the reflective layer is used for reflecting light passing through the dye liquid crystal layer.

[0017] Optionally, the liquid crystal box further comprises a color resistance layer, the color resistance layer is located between the first substrate and the common electrode, and color resistances of different colors are arranged on the color resistance layer in a spaced manner.

[0018] According to another aspect of the present application, a display device is provided, which comprises the display panel provided in any of the embodiments of the present application.

[0019] The technical scheme provided by the present application sets the light source module on the light-emitting side of the liquid crystal box, and the light source module provides a supplementary light source for the display panel when the ambient light is relatively dark, so that good display effect can be ensured and the phenomenon of dark display picture caused by insufficient light can be avoided. In addition, the solar cell back plate is connected with the liquid crystal box and / or the light source module, and the solar cell back plate is used to provide power supply for the liquid crystal box and / or the light source module, which is conducive to energy saving and environmental protection.

[0020] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 A structural schematic view of a display panel provided by the embodiments of the present application is shown in the figure.

[0023] Figure 2 A structural schematic view of another display panel provided by the embodiments of the present application is shown in the figure.

[0024] Figure 3 A structure schematic diagram of another display panel provided by the embodiment of the present application is shown in FIG. 6.

[0025] Figure 4 A structure schematic diagram of another display panel provided by the embodiment of the present application is shown in FIG. 6.

[0026] Figure 5 A structure schematic diagram of another display panel provided by the embodiment of the present application is shown in FIG. 6.

[0027] Among them:

[0028] 10-lcd cell; 131-first substrate; 132-second substrate; 133-lcd layer; 134-common electrode; 135-pixel electrode; 136-color resist layer; 1361-first color resist; 1362-second color resist; 1363-third color resist;

[0029] 20-light source module; 201-assistant light source; 202-light guide plate; 21-light guide dot;

[0030] 30-solar cell backboard; 301-photoelectric conversion layer; 31-light absorption surface;

[0031] 41-first circuit board; 42-second circuit board;

[0032] 60-reflective layer. DETAILED DESCRIPTION

[0033] In order to make the person skilled in the art better understand the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0034] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] Figure 1 A structure schematic diagram of another display panel provided by the embodiment of the present application is shown in FIG. 6.Figure 1 The display panel provided by the embodiment of the present application comprises a liquid crystal box 10, a light source module 20 and a solar cell backboard 30, the light source module 20 is located at the light emitting side of the liquid crystal box 10, the solar cell backboard 30 is located at the side of the liquid crystal box 10 away from the light source module 20, and the solar cell backboard 30 is connected with the liquid crystal box 10 and / or the light source module 20.

[0036] In the embodiment, the display panel can be a reflective liquid crystal display panel, the reflective display panel realizes the presentation of an image by using the reflection principle, the ambient light is reflected to the human eye by the reflection of the internal structure, thereby forming an image, and the display panel can be used for outdoor billboards, bus stop boards and the like.

[0037] Specifically, the light source module 20 is a front light source, which is used to supplement the light source of the display panel in the case of insufficient ambient light, so as to improve the display effect. The solar cell backboard 30 converts the light energy into electric energy by absorbing the ambient light, so as to supply power for the liquid crystal box 10 and / or the light source module 20. For example, the solar cell backboard 30 is connected with the light source module 20 to supply power for the light source module 20. Alternatively, the solar cell backboard 30 is connected with the liquid crystal box 10 to provide voltage for the chips and transistors and the like in the liquid crystal box 10. Alternatively, the solar cell backboard 30 is connected with the light source module 20 and the liquid crystal box 10 at the same time.

[0038] The technical scheme provided by the embodiment of the present application is that the light source module 20 is arranged at the light emitting side of the liquid crystal box 10, the display panel is provided with the supplementary light source by the light source module 20 in the case of dark ambient light, and the good display effect can be ensured, and the phenomenon that the display picture is dark due to insufficient light will not occur. In addition, the solar cell backboard 30 is connected with the liquid crystal box 10 and / or the light source module 20, the solar cell backboard 30 is used to provide power for the liquid crystal box 10 and / or the light source module 20, and the energy saving and environmental protection are facilitated.

[0039] Figure 2 Another display panel provided by the embodiment of the present application is shown in the structure schematic view, which is shown in Figure 2 On the basis of the above embodiment, optionally, the solar cell backboard 30 comprises a photoelectric conversion layer 301, the photoelectric conversion layer 301 is connected with the liquid crystal box 10 and / or the light source module 20 through a circuit board. The photoelectric conversion layer 301 is made of a semiconductor material, and the electrons in the semiconductor material in the photoelectric conversion layer 301 will jump to form a current under the irradiation of light, thereby realizing the process of converting solar energy into electric energy.

[0040] Optionally, the material of the photoelectric conversion layer 301 can be monocrystalline silicon, polycrystalline silicon, amorphous silicon and the like silicon materials, and gallium arsenide, selenium indium copper and the like multi-element compounds. In other embodiments, the photoelectric conversion layer 301 can also be prepared from organic small molecules and polymer materials.

[0041] With reference to Figure 2 Optionally, the photoelectric conversion layer 301 has a light absorption surface 31, wherein the light absorption surface 31 is used to absorb ambient light to help the photoelectric conversion layer 301 convert solar energy into electric energy.

[0042] In an optional embodiment provided by the embodiment, the light absorption surface 31 of the photoelectric conversion layer 301 is towards a side of the photoelectric conversion layer 301 close to the liquid crystal box 10. That is, the light absorption surface 31 of the photoelectric conversion layer 301 is towards the front surface of the display panel, and the light absorption surface 31 can absorb light passing through the liquid crystal box 10.

[0043] Figure 3 Another structure diagram of the display panel provided by the embodiment is shown in FIG. 4, and the display panel comprises a liquid crystal box 10, a light source module 20, a photoelectric conversion layer 301 and a solar cell backboard 30. Figure 3 In another optional embodiment provided by the embodiment, the light absorption surface 31 of the photoelectric conversion layer 301 is towards a side of the photoelectric conversion layer 301 away from the liquid crystal box 10. That is, the light absorption surface 31 of the photoelectric conversion layer 301 is towards the back surface of the display panel, and light is absorbed from the back surface of the display panel. Compared with the case that the light absorption surface 31 is towards the side of the photoelectric conversion layer 301 close to the liquid crystal box 10, when the light absorption surface 31 is towards the side of the photoelectric conversion layer 301 away from the liquid crystal box 10, the light absorption area of the solar cell backboard 30 can be increased, thereby facilitating the increase of the light absorption degree and the improvement of the charging efficiency of the solar cell backboard.

[0044] Optionally, in the embodiment, the solar cell backboard 30 has a storage function, and can store the absorbed solar energy into electric energy to provide electric energy for the light source module 20 and / or the liquid crystal box 10.

[0045] Figure 4 Another structure diagram of the display panel provided by the embodiment is shown in FIG. 4, and the display panel comprises a liquid crystal box 10, a light source module 20, a photoelectric conversion layer 301 and a solar cell backboard 30. Figure 2 and Figure 4 On the basis of the above embodiments, the liquid crystal box 10 is provided with a first circuit board 41, the first circuit board 41 can include a PCB board and / or a flexible circuit board, and the solar cell backboard 30 is connected with the first circuit board 41 through a second circuit board 42, thereby realizing the connection with the liquid crystal box 10.

[0046] When the solar cell backboard 30 is connected with the light source module 20, side wiring technology can be used to realize the connection of the two. For example, the light source module 20 includes an auxiliary light source 201, wiring is arranged on the side of the liquid crystal box 10, the electrode of the auxiliary light source 201 is connected with the second circuit board 42 through the wiring, thereby realizing the connection of the solar cell backboard 30 with the light source module 20.

[0047] Optionally, the light source module 20 further comprises a light guide plate 202, the light guide plate 202 is located at the side of the liquid crystal cell 10 away from the solar cell back plate 30, and the auxiliary light source 201 is located at the side of the light guide plate 202, so as to avoid that the auxiliary light source 201 blocks the light incident to the liquid crystal cell 10.

[0048] The light guide plate 202 is provided with a light guide dot 21, and the light emitted by the auxiliary light source 201 can be reflected to the liquid crystal cell 10 by the light guide dot 21. The light guide dot 21 can be in the shape of a triangular prism or a circle, and can be processed on the surface of the light guide plate 202 by a laser direct writing lithography process. When the auxiliary light source 201 is turned on, the light emitted by the auxiliary light source 201 is totally reflected on the light guide dot 21, so as to guide the light into the liquid crystal cell 10.

[0049] Figure 5 Another structural schematic diagram of a display panel provided by the embodiment of the utility model is shown in the figure, Figure 5 The liquid crystal cell 10 shown in the figure is a single-layer liquid crystal cell. Referring to Figure 5 The liquid crystal cell 10 comprises a first substrate 131, a liquid crystal layer 133 and a second substrate 132, the liquid crystal layer 133 is located between the first substrate 131 and the second substrate 132, a common electrode 134 is arranged on the side of the first substrate 131 close to the liquid crystal layer 133, a pixel electrode 135 is arranged on the side of the second substrate 132 close to the liquid crystal layer 133, and a plurality of pixel electrodes 135 are arranged in an insulating manner. Wherein, the region formed by the intersection of the orthographic projection of each pixel electrode 135 and the common electrode 134 on the second substrate 132 is a pixel area. For example, the first pixel area is formed between the first pixel electrode 135 and the common electrode 134, the second pixel area is formed between the second pixel electrode 135 and the common electrode 134, the third pixel area is formed between the third pixel electrode 135 and the common electrode 134, and the first pixel area, the second pixel area and the third pixel area are repeated in sequence. Wherein, the first pixel area can be a red pixel area, the second pixel area can be a green pixel area, and the third pixel area can be a blue pixel area.

[0050] The solar cell back plate 30 is located at the side of the second substrate 132 away from the liquid crystal layer 133.

[0051] Optionally, in the embodiment, the liquid crystal layer 133 is a dye liquid crystal layer. Wherein, the dye liquid crystal in the dye liquid crystal layer has an absorption axis and a transmission axis, and has the characteristics of strong absorption capacity along the long axis and weak absorption capacity along the short axis. The orientation of the dye liquid crystal and the absorption state of the light can be controlled by the electric field, so as to realize the emission of light of different colors.

[0052] Optionally, continuing to refer to Figure 5A reflective layer 60 is arranged on the side of the second substrate 132 away from the liquid crystal layer 133, and the reflective layer 60 is used for reflecting light passing through the dye liquid crystal layer.

[0053] The liquid crystal box 10 further comprises a color resistance layer 136, which is arranged between the seventh substrate 131 and the fourth common electrode 134, and different color resistances are arranged on the color resistance layer 136 in intervals.

[0054] Optionally, in the embodiment, an array layer (not shown in the figure) is further arranged between the second substrate 132 and the pixel electrode 135, and the array layer can comprise a transistor for controlling whether to transmit voltage to the pixel electrode 135.

[0055] Optionally, the utility model discloses a display device, and the display device provided in the embodiment can be an outdoor electronic product such as an advertising board and a bus stop board, or can be an electronic product such as an electronic reader and an electronic label.The display device comprises the reflective display panel provided in any of the embodiments of the utility model, so the display device also has the beneficial effects described in any of the embodiments.

[0056] It should be understood that the various forms of flow shown above can be reordered, added or deleted steps. For example, the steps described in the utility model can be executed in parallel, sequentially or in different order, as long as the desired results of the technical solutions of the utility model can be achieved, which is not limited herein.

[0057] The above specific embodiments do not constitute a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A display panel, characterized by, The display panel comprises: a liquid crystal cell; a light source module located on the light-emitting side of the liquid crystal cell; a solar cell backboard located on the side of the liquid crystal cell away from the light source module, the solar cell backboard being connected with the liquid crystal cell and / or the light source module.

2. The display panel of claim 1, wherein, The solar cell backboard comprises a photoelectric conversion layer connected with the liquid crystal cell and / or the light source module through a circuit board.

3. The display panel of claim 2, wherein, The photoelectric conversion layer has a light-absorbing surface, and the light-absorbing surface of the photoelectric conversion layer faces the side of the photoelectric conversion layer close to the liquid crystal cell.

4. The display panel of claim 2, wherein, The photoelectric conversion layer has a light-absorbing surface, and the light-absorbing surface of the photoelectric conversion layer faces the side of the photoelectric conversion layer away from the liquid crystal cell.

5. The display panel of claim 1, wherein, The light source module comprises an auxiliary light source and a light guide plate; The light guide plate is located on the side of the liquid crystal cell away from the solar cell backboard, and the auxiliary light source is located on the side of the light guide plate.

6. The display panel of claim 1, wherein, The liquid crystal cell comprises a first substrate, a liquid crystal layer and a second substrate, the liquid crystal layer is located between the first substrate and the second substrate, a common electrode is arranged on the side of the first substrate close to the liquid crystal layer, a pixel electrode is arranged on the side of the second substrate close to the liquid crystal layer, and a plurality of pixel electrodes are arranged in an insulating manner. The solar cell backboard is located on the side of the second substrate away from the liquid crystal layer.

7. The display panel of claim 6, wherein, The liquid crystal layer is a dye liquid crystal layer.

8. The display panel of claim 7, wherein, A reflective layer is arranged on the side of the second substrate away from the liquid crystal layer, and the reflective layer is used for reflecting light passing through the dye liquid crystal layer.

9. The display panel of claim 6, wherein, The liquid crystal cell further comprises a color resistance layer, the color resistance layer is located between the first substrate and the common electrode, and color resistances of different colors are arranged on the color resistance layer in an interval manner.

10. A display device, characterized by comprising: The display panel comprises the display panel according to any one of claims 1-9.

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