Liquid crystal display and dual-layer liquid crystal display

Abstract

A liquid crystal display (100) and a dual-layer liquid crystal display (200) are provided, wherein the liquid crystal display (100) comprises a display panel (110) and a solar module (120). The solar module (120) is disposed on a surface of the display panel (110) and comprises a polymer layer (121), solar cells (122), a diode (123), and a light-transmitting layer (124). The solar cells (122) are electrically connected to each other and are embedded in the polymer layer (121) at intervals. The diode (123) is embedded in the polymer layer (121) and is connected in parallel with the solar cells (122). The light-transmitting layer (124) is disposed between the display panel (110) and the polymer layer (121).

Description

LCD displays and dual-layer LCD displays Technical Field

[0001] This disclosure relates to a liquid crystal display and a dual-layer liquid crystal display, and particularly to a liquid crystal display and a dual-layer liquid crystal display incorporating a solar energy module. Background Technology

[0002] Bistable liquid crystal displays (LCMs) consume power only when updating the screen; they require no power when maintaining a static display. With increasing climate change, combining bistable LCMs with solar cells can absorb ambient light and convert it into electricity to power the LCM, thus saving energy.

[0003] However, if the display is placed outdoors and is shaded by dirt, leaves or other obstacles, the current of the solar cell in the shaded area is lower, which reduces the power generation efficiency of other solar cells connected in series with the solar cell in the shaded area. In addition, the cell in the shaded area exhibits high resistance and is prone to localized heat generation.

[0004] Furthermore, when an LCD screen displays a high-contrast image, the different colors displayed in different areas of the screen result in varying light intensity for each solar cell, leading to uneven power generation efficiency in different areas.

[0005] In view of this, there is currently a lack of LCD displays or dual-layer LCD displays on the market that can adjust the overall power generation efficiency, so relevant companies are seeking solutions. Summary of the Invention

[0006] Therefore, the purpose of this disclosure is to provide a liquid crystal display and a dual-layer liquid crystal display, which embeds diodes in a solar module to bypass the aforementioned solar cells when individual solar cells are shaded or have low current, thereby maintaining the overall power generation efficiency and display effect of the liquid crystal display or the dual-layer liquid crystal display.

[0007] According to one embodiment of the structural configuration disclosed herein, a liquid crystal display is provided, comprising a display panel and a solar module. The solar module is disposed on a surface of the display panel and includes a polymer layer, a plurality of solar cells, at least one diode, and a light-transmitting layer. The solar cells are electrically connected to each other and are spaced apart and embedded in the polymer layer. At least one diode is embedded in the polymer layer and connected in parallel with at least one of the solar cells. The light-transmitting layer is disposed between the display panel and the polymer layer. Any adjacent parts of the display panel, the light-transmitting layer, and the polymer layer are bonded together with an optical adhesive.

[0008] Other embodiments of the aforementioned implementation are as follows: The aforementioned liquid crystal display may further include a back panel. The back panel is disposed on one side of the solar module.

[0009] Other embodiments of the aforementioned implementation are as follows: the thickness of the aforementioned at least one diode may be less than or equal to 1.2 mm.

[0010] Other embodiments of the foregoing implementation are as follows: the aforementioned display panel may be a cholesteric liquid crystal panel, and any of these solar cells may be a silicon wafer solar cell, a thin-film solar power generation module, an organic solar power generation module, a perovskite solar power generation module, and a dye-sensitized solar power generation module.

[0011] Other embodiments of the aforementioned implementation are as follows: The aforementioned solar module may further include a light-shielding layer. The light-shielding layer is embedded in the polymer layer, and is disposed between at least one diode and the light-transmitting layer, corresponding to at least one diode.

[0012] Other embodiments of the aforementioned implementation are as follows: the number of the aforementioned at least one diode may be multiple, each of which corresponds to one of the solar cells, and these diodes are connected in parallel with each other.

[0013] Other embodiments of the aforementioned implementation are as follows: The aforementioned solar module may further include multiple light-shielding layers. These light-shielding layers are embedded in the polymer layer, and each of these light-shielding layers corresponds to one of the diodes. These light-shielding layers are disposed between the diodes and the light-transmitting layer.

[0014] Other embodiments of the aforementioned implementation are as follows: the number of the aforementioned at least one diode may be one, and the position of one diode corresponds to a signal output terminal of the display panel.

[0015] Other embodiments of the aforementioned implementation are as follows: The aforementioned solar module may further include another light-transmitting layer, and the polymer layer is located between the light-transmitting layer and the other light-transmitting layer.

[0016] According to another embodiment of the structural configuration disclosed herein, a dual-layer liquid crystal display is provided, comprising two display panels and a solar module. The solar module is disposed between the two display panels and includes a polymer layer, a plurality of solar cells, at least one diode, and two light-transmitting layers. The solar cells are electrically connected to each other and are spaced apart and embedded in the polymer layer. At least one diode is embedded in the polymer layer and connected in parallel with at least one of the solar cells. The light-transmitting layers are respectively disposed between the two display panels and the polymer layer. Any adjacent two display panels, two light-transmitting layers, and the polymer layer are bonded together with an optical adhesive.

[0017] Other embodiments of the aforementioned implementation are as follows: the number of the aforementioned at least one diode may be multiple, each of which corresponds to one of the solar cells, and these diodes are connected in parallel with each other.

[0018] Other embodiments of the aforementioned implementation are as follows: The aforementioned solar module may further include multiple light-shielding layers. These light-shielding layers are embedded in the polymer layer, and each of these light-shielding layers corresponds to one of the diodes. These light-shielding layers are disposed between the diodes and one of the two light-transmitting layers.

[0019] Other embodiments of the aforementioned implementation are as follows: the number of the aforementioned at least one diode may be one, and the position of one diode corresponds to a signal output terminal of one of the two display panels. Attached Figure Description

[0020] Figure 1 is a top view schematic diagram illustrating a liquid crystal display according to a first embodiment of the present disclosure;

[0021] Figure 2 is a side view schematic diagram showing the liquid crystal display according to Figure 1;

[0022] Figure 3 is a schematic diagram showing the partial shading of the liquid crystal display according to Figure 1;

[0023] Figure 4 is a schematic diagram illustrating a liquid crystal display according to a second embodiment of the present disclosure;

[0024] Figure 5 is a schematic diagram illustrating a liquid crystal display according to a third embodiment of the present disclosure;

[0025] Figure 6 is a schematic diagram illustrating a liquid crystal display according to a fourth embodiment of the present disclosure;

[0026] Figure 7 is a schematic diagram illustrating a liquid crystal display according to a fifth embodiment of the present disclosure; and

[0027] Figure 8 is a schematic diagram illustrating a dual-layer liquid crystal display according to a sixth embodiment of the present disclosure.

[0028] Figure reference numerals: 100, 100a, 100b, 100c, 100d: Liquid crystal display; 110, 210: Display panel; 111: Signal output terminal; 120, 220: Solar module; 121, 221: Polymer layer; 122, 122a, 222: Solar cell; 123, 123c, 223: Diode; 124, 224: Light-transmitting layer; 125, 125b, 225: Light-shielding layer; 130: Back panel; 200: Dual-layer liquid crystal display; A1: Area; TH1: Thickness; W1: Ribbon cable. Detailed Implementation

[0029] Several embodiments of this disclosure will be described below with reference to the accompanying drawings. For clarity, many practical details will be set forth in the following description. However, it should be understood that these practical details should not be used to limit the scope of this disclosure. That is, in some embodiments of this disclosure, these practical details are not essential. Furthermore, for the sake of simplicity in the drawings, some conventionally used structures and elements will be shown in a simple schematic manner; and repeated elements may be denoted by the same reference numerals.

[0030] Furthermore, in this document, when a component (or unit or module, etc.) is "connected" to another component, it can mean that the component is directly connected to the other component, or that the component is indirectly connected to the other component, meaning that there is another component between the component and the other component. Only when it is explicitly stated that a component is "directly connected" to another component does it indicate that there is no other component between the component and the other component. The terms "first," "second," and "third" are only used to describe different components and do not limit the components themselves; therefore, "first component" can also be referred to as "second component." Moreover, the combinations of components / units / circuits in this document are not combinations generally known, conventional, or existing in this field. Whether the component / unit / circuit itself is existing cannot be used to determine whether its combination relationship is easily accomplished by someone of ordinary skill in the art.

[0031] Please refer to Figures 1 and 2. Figure 1 is a top view of a liquid crystal display according to a first embodiment of the present disclosure; and Figure 2 is a side view of the liquid crystal display according to Figure 1. The liquid crystal display 100 includes a display panel 110 and a solar module 120. The solar module 120 is disposed on a surface of the display panel 110 and includes a polymer layer 121, a plurality of solar cells 122, at least one diode 123, and a light-transmitting layer 124. The solar cells 122 are electrically connected to each other and are spaced apart and embedded in the polymer layer 121. At least one diode 123 is embedded in the polymer layer 121 and connected in parallel with at least one of the solar cells 122. The light-transmitting layer 124 is disposed between the display panel 110 and the polymer layer 121. Any adjacent parts of the display panel 110, the light-transmitting layer 124, and the polymer layer 121 are bonded together with an optical adhesive. Therefore, the liquid crystal display 100 disclosed herein incorporates diode 123 within the solar module 120, thereby adjusting the power generation efficiency without increasing the overall thickness of the liquid crystal display 100.

[0032] In detail, the display panel 110 may be a cholesteric liquid crystal panel, the polymer layer 121 may be ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), polyvinyl fluoride resin film (Tedlar) or other elastic polymers, any of the solar cells 122 may be a silicon wafer solar cell, a thin film solar power generation module, an organic solar power generation module, a perovskite solar power generation module and a dye-sensitized solar power generation module, the diode 123 may be a bypass diode, and the light-transmitting layer 124 may be reinforced glass, but the present disclosure is not limited thereto.

[0033] In the first embodiment, there are multiple diodes 123, each corresponding to one of the solar cells 122, and these diodes 123 are connected in parallel. The thickness TH1 of the diode 123 may be less than or equal to 1.2 mm, but this disclosure is not limited thereto. The solar cells 122 are interconnected via ribbon cable W1, and the power stored in all the solar cells 122 is integrated into the signal output terminal 111 via ribbon cable W1 to supply power to the display panel 110.

[0034] Furthermore, the solar module 120 may also include multiple light-shielding layers 125. These light-shielding layers 125 are embedded in the polymer layer 121, and each light-shielding layer 125 corresponds to one of the diodes 123. These light-shielding layers 125 are disposed between the diodes 123 and the light-transmitting layer 124. By placing the light-shielding layers 125 at the positions corresponding to the diodes 123, the reflections generated by the diodes 123, which are made of metal, can be prevented from affecting the display effect of the display panel 110.

[0035] Additionally, the liquid crystal display 100 may also include a back panel 130. The back panel 130 is disposed on one side of the solar module 120. The solar module 120 is located between the back panel 130 and the display panel 110. The back panel 130 may be made of black or opaque material, which can be used to increase the contrast of the liquid crystal display 100.

[0036] Please refer to Figures 1 to 3. Figure 3 is a schematic diagram showing the partial shading of the liquid crystal display (LCD) according to Figure 1. When the LCD 100 is installed in an outdoor environment, it may be shaded by outdoor obstacles. As shown in Figure 3, area A1 of the LCD 100 is shaded, causing a decrease in the current of the solar cell 122 in area A1. Therefore, the current does not flow through the solar cell 122, but only through the diode 123 at the corresponding shading location. Therefore, by incorporating the diode 123 in the solar module 120 of the LCD 100 disclosed herein, the problem of reduced power generation efficiency of the solar cell 122 due to partial shading can be reduced.

[0037] Please refer to Figures 1, 2, and 4. Figure 4 is a schematic diagram illustrating a liquid crystal display according to a second embodiment of the present disclosure. The liquid crystal display 100a includes a display panel 110 and a solar module 120. The solar module 120 is disposed on the surface of the display panel 110 and includes a polymerization layer, a plurality of solar cells 122a, a plurality of diodes 123, and a light-transmitting layer 124. In the second embodiment, the structures of the display panel 110, the polymerization layer of the solar module 120, the diodes 123, and the light-transmitting layer 124 of the liquid crystal display 100a are the same as those of the display panel 110, the polymerization layer 121, the diodes 123, and the light-transmitting layer 124 of the liquid crystal display 100 in the first embodiment, and will not be described again. Specifically, the size of the solar cell 122a is half the size of the solar cell 122 of the liquid crystal display 100 in the first embodiment; two adjacent solar cells 122a are connected in series and correspond to one diode 123. When at least one of the two interconnected solar cells 122a is shaded or has a low current, the current flows instead through the corresponding diode 123. In other embodiments, the solar cells may be adjusted to other sizes, but this disclosure is not limited thereto.

[0038] Please refer to Figures 1, 2, and 5. Figure 5 is a schematic diagram illustrating a liquid crystal display according to a third embodiment of the present disclosure. The liquid crystal display 100b includes a display panel and a solar module 120. The solar module 120 is disposed on the surface of the display panel and includes a polymerization layer, a plurality of solar cells 122, a plurality of diodes, and a light-transmitting layer. In the third embodiment, the structures of the display panel, the polymerization layer, the solar cells 122, the diodes, and the light-transmitting layer of the liquid crystal display 100b are the same as those of the display panel 110, the polymerization layer 121, the solar cells 122, the diodes 123, and the light-transmitting layer 124 of the liquid crystal display 100 in the first embodiment, and will not be described again. In particular, the solar module 120 may further include a light-shielding layer 125b. The light-shielding layer 125b is embedded in the polymerization layer and is disposed between at least one diode 123 and the light-transmitting layer 124, corresponding to at least one diode 123. In detail, the area of ​​the light-shielding layer 125b corresponds to that of the display panel, and it can be a black elastic polymer or a dark ink mesh.

[0039] Please refer to Figures 1, 2, and 6. Figure 6 is a schematic diagram illustrating a liquid crystal display according to the fourth embodiment of this disclosure. The liquid crystal display 100c includes a display panel 110 and a solar module 120. The solar module 120 is disposed on the surface of the display panel 110 and includes a polymerization layer, a plurality of solar cells 122, at least one diode 123c, and a light-transmitting layer 124. In the fourth embodiment, the structures of the display panel 110, the polymerization layer of the solar module 120, the solar cells 122, the diodes 123c, and the light-transmitting layer 124 of the liquid crystal display 100c are the same as those of the display panel 110, the polymerization layer 121, the solar cells 122, the diodes 123c, and the light-transmitting layer 124 of the liquid crystal display 100 in the first embodiment, and will not be described again. In particular, the number of at least one diode 123c may be one, and a position of the diode 123c corresponds to a signal output terminal 111 of the display panel 110.

[0040] Specifically, diode 123c is electrically connected to ribbon cable W1 and electrically connected to signal output terminal 111. The liquid crystal display 100c in the fourth embodiment can be applied to a large display board composed of multiple liquid crystal displays 100c spliced ​​together. The liquid crystal displays 100c are connected in series or parallel. When a single liquid crystal display 100c is blocked or has insufficient light, its diode 123c is turned on to adjust the overall power generation efficiency of the large display board.

[0041] Please refer to Figures 1, 2, and 7. Figure 7 is a schematic diagram illustrating a liquid crystal display according to the fifth embodiment of this disclosure. The liquid crystal display 100d includes a display panel 110 and a solar module 120. The solar module 120 is disposed on the surface of the display panel 110 and includes a polymer layer 121, a plurality of solar cells 122, at least one diode 123, and two light-transmitting layers 124. In the fourth embodiment, the structures of the display panel 110, the polymer layer 121, the solar cells 122, and the diode 123 of the liquid crystal display 100d are the same as those of the display panel 110, the polymer layer 121, the solar cells 122, and the diode 123 of the liquid crystal display 100 in the first embodiment, and will not be described again. In particular, the solar module 120 may include two light-transmitting layers 124, with the polymer layer 121 located between the two light-transmitting layers 124.

[0042] Specifically, the light-transmitting layer 124 can be reinforced glass. In this way, the liquid crystal display 100d of this disclosure places the solar cell 122 between the two reinforced glass layers (i.e., the light-transmitting layer 124), reducing the probability of the solar cell 122 being subjected to external forces or warping during the process, and improving the yield of the bonding between the display panel 110 and the solar module 120.

[0043] Please refer to Figures 2 and 8. Figure 8 is a schematic diagram illustrating a dual-layer liquid crystal display according to a sixth embodiment of the present disclosure. The dual-layer liquid crystal display 200 includes two display panels 210 and a solar module 220. The solar module 220 is disposed between the two display panels 210 and includes a polymer layer 221, a plurality of solar cells 222, a plurality of diodes 223, and two light-transmitting layers 224. The solar cells 222 are electrically connected to each other and are spaced apart and embedded in the polymer layer 221. The diodes 223 are embedded in the polymer layer 221 and are connected in parallel with at least one of the solar cells 222. The light-transmitting layers 224 are respectively disposed between the two display panels 210 and the polymer layer 221. Any two adjacent display panels 210, two light-transmitting layers 224, and polymer layer 221 are bonded together by an optical adhesive. Therefore, the dual-layer liquid crystal display 200 disclosed herein uses a dual-layer transparent layer 224 to encapsulate the solar cell 222, which can absorb light from both sides of the solar module 220 to generate electricity and display images on both sides.

[0044] As can be seen from the above embodiments, the present disclosure has the following advantages: First, the liquid crystal display of the present disclosure places the diode in the solar module, thereby adjusting the power generation efficiency without increasing the overall thickness of the liquid crystal display; Second, placing the diode in the solar module of the liquid crystal display of the present disclosure can reduce the problem of reduced power generation efficiency of the solar cell due to local shading; Third, the liquid crystal display of the present disclosure places the solar cell between two tempered glass layers, reducing the probability of the solar cell being subjected to external force or warping during the process, and improving the yield of bonding between the display panel and the solar module.

[0045] Although the present disclosure has been described above with reference to embodiments, it is not intended to limit the present disclosure. Any person skilled in the art may make various changes and modifications without departing from the concept and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the claims.

Claims

1. A liquid crystal display, characterized by comprising: Include: A display panel; and A solar module is disposed on a surface of the display panel, the solar module comprising: One polymer layer; Multiple solar cells are electrically connected to each other and are embedded at intervals in the polymer layer; At least one diode is embedded in the polymer layer and connected in parallel with at least one of the plurality of solar cells; and A light-transmitting layer is disposed between the display panel and the polymer layer; The display panel, the light-transmitting layer, and the polymer layer are bonded together by an optical adhesive.

2. The liquid crystal display of claim 1, wherein, Also includes: A back panel is installed on one side of the solar module.

3. The liquid crystal display of claim 1, wherein, The thickness of at least one diode is less than or equal to 1.2 mm.

4. The liquid crystal display of claim 1, wherein, The display panel is a cholesteric liquid crystal panel, and any one of the plurality of solar cells is a silicon wafer solar cell, a thin-film solar power generation module, an organic solar power generation module, a perovskite solar power generation module, and a dye-sensitized solar power generation module.

5. The liquid crystal display of claim 1, wherein, The solar module also includes: A light-shielding layer is embedded in the polymer layer, and the light-shielding layer is disposed between the at least one diode and the light-transmitting layer in relation to the at least one diode.

6. The liquid crystal display of claim 1, wherein, The number of the at least one diode is multiple, each diode corresponding to a multiple solar cell, and the multiple diodes are connected in parallel with each other.

7. The liquid crystal display of claim 6, wherein, The solar module also includes: Multiple light-shielding layers are embedded in the polymer layer, and each of the multiple light-shielding layers corresponds to one of the multiple diodes; The plurality of light-shielding layers are disposed between the plurality of diodes and the light-transmitting layer.

8. The liquid crystal display of claim 1, wherein, The number of at least one diode is one, and one of the diodes is positioned to correspond to a signal output terminal of the display panel.

9. The liquid crystal display of claim 1, wherein, The solar module also includes another light-transmitting layer, with the polymer layer located between the light-transmitting layer and the other light-transmitting layer.

10. A dual layer liquid crystal display, characterized by, Include: Two display panels; and A solar module, positioned between the two display panels, includes: One polymer layer; Multiple solar cells are electrically connected to each other and are embedded at intervals in the polymer layer; At least one diode is embedded in the polymer layer and connected in parallel with at least one of the plurality of solar cells; and Two light-transmitting layers are respectively disposed between the two display panels and the polymer layer; The two display panels, the two light-transmitting layers, and the polymer layer are bonded together by an optical adhesive.

11. The dual layer liquid crystal display of claim 10, wherein the first and second liquid crystal layers are each a twisted nematic liquid crystal layer. The number of the at least one diode is multiple, each diode corresponding to a multiple solar cell, and the multiple diodes are connected in parallel with each other.

12. The dual layer liquid crystal display of claim 11, wherein, The solar module also includes: Multiple light-shielding layers are embedded in the polymer layer, and each of the multiple light-shielding layers corresponds to one of the multiple diodes; The plurality of light-shielding layers are disposed between the plurality of diodes and one of the two light-transmitting layers.

13. The dual layer liquid crystal display of claim 10, wherein the first and second liquid crystal layers are each a twisted nematic liquid crystal layer. The number of at least one diode is one, and the diode is positioned to correspond to a signal output terminal of one of the two display panels.

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