Composite self-powered transparent display device
The combined self-powered transmissive display device addresses power generation efficiency and moire pattern issues by overlapping light-transmitting areas and strategically arranging transparent and non-transparent regions, achieving efficient power generation and improved visual quality.
Patent Information
- Application Number
- JP2024195433
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-01
- Filing Date
- 2024-11-07
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2044-11-07
AI Technical Summary
Conventional cholesteric liquid crystal displays (ChLCDs) and microLED displays, when combined for solar power generation, face challenges in maximizing power generation efficiency and avoiding moire patterns due to spatial interference of stripes, which degrade visual quality.
A combined self-powered transmissive display device is designed with a multi-layer structure where the first and second light-transmitting areas overlap, and a power generation module is stacked below, converting light into electrical energy while minimizing moire effects through strategic arrangement of transparent and non-transparent regions.
The device enhances power generation efficiency and reduces moire patterns by maximizing light transmission and minimizing spatial interference, ensuring high visual quality and self-power generation capability.
Smart Images
Figure 2025169858000001_ABST
Abstract
Description
[Technical Field]
[0001] The present disclosure relates to displays, and more particularly to hybrid self-powered transmissive displays. [Background technology]
[0002] With the continuous improvement of display technology, new display styles are becoming more and more numerous. They have evolved from cathode ray tube (CRT) displays to thin displays such as liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs), and even LED splice displays. Display functions have also evolved from general displays to transparent backgrounds such as OLEDs and micro-light-emitting diode (MicroLED) displays. As screen resolutions improve, the number of light-emitting sources required increases, indicating a trend toward increasing display power consumption. Therefore, how to save power or utilize renewable energy generated by solar power has become a hot topic. Summary of the Invention [Problem to be solved by the invention]
[0003] Conventional cholesteric liquid crystal displays (ChLCDs) and microLED displays are both transmissive and therefore suitable for use in solar power generation devices. However, combining these three displays requires new panel layouts to maximize the synergistic effects of the two displays and increase the power generation efficiency of solar power generation devices. Furthermore, because both displays and solar power generation devices exhibit periodic stripes, stacking them arbitrarily can easily result in moire patterns on the image screen, severely impacting visual quality. Given this, developing a combined display device with high power generation efficiency and reduced moire patterns is a pressing challenge facing relevant industries.
[0004] The object of the present disclosure is to provide a combined self-powered transparent display device that is stacked in a multi-layer structure, in which the first light-transmitting area of the first display unit overlaps with the second light-transmitting area of the second light-transmitting display unit, thereby maximizing the area through which light can pass and further increasing the power generation efficiency of the power generation module located at the bottom, while at the same time avoiding the formation of a moiré effect due to spatial interference of stripes on the upper and lower panels. [Means for solving the problem]
[0005] According to one embodiment of the present disclosure, there is provided a combined self-powered transmissive display device comprising: a first transmissive display unit including a first transmissive region for receiving light rays and a non-transmissive region surrounding the periphery of the first transmissive region; a second transmissive display unit including a second transmissive region overlapping the first transmissive region and a peripheral region surrounding the periphery of the second transmissive region and overlapping with the non-transmissive region, the second transmissive display unit being stacked on the first transmissive display unit; and a power generation module being stacked on the second transmissive display unit, wherein light rays sequentially pass through the first transmissive region and the second transmissive region to enter the power generation module, and the power generation module converts the light rays into electrical energy and provides the electrical energy to the first transmissive display unit and the second transmissive display unit.
[0006] In another implementation of the embodiment, the power generating module includes an energy harvesting area for converting light into electrical energy, the energy harvesting area overlapping the second light-transmitting area.
[0007] In another example of the embodiment, the total area of the first light-transmitting region and the non-light-transmitting region is A1, and the overlapping area of the overlapping region between the first light-transmitting region and the second light-transmitting region is A2, satisfying the condition A2 / A1≧50%.
[0008] In another embodiment of the above embodiment, the first light-transmitting display unit is an active light-emitting panel, and the second light-transmitting display unit is a reflective light-emitting panel.
[0009] In another implementation of the embodiment, the first light-transmitting region is a transparent plate, and the second light-transmitting region is a pixel region.
[0010] In another embodiment of the above-described embodiment, the non-transmitting area includes a plurality of scan lines and a plurality of data lines, and the surrounding area is made of a transparent material.
[0011] In another implementation of the above embodiment, the non-light-transmitting region includes a plurality of first scan lines and a plurality of first data lines, and the peripheral region includes a plurality of second scan lines and a plurality of second data lines.
[0012] In another example of the embodiment, the power generation module is a silicon crystalline solar cell, a thin film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.
[0013] In another example of the embodiment, the power generation module includes a plurality of power generation units arranged at intervals from each other, each having a unit length and a unit pitch between them, and a plurality of conductive wires arranged at intervals from each other, used to connect the plurality of power generation units in series, and having a conductor pitch between them, wherein at least one of the unit length, unit pitch, and conductor pitch is 1 centimeter or more.
[0014] In another example of the embodiment, the composite self-powered transmissive display device further includes a storage unit electrically connected to the first translucent display unit, the second translucent display unit, and the power generation module, for storing electrical energy and providing the electrical energy to the first translucent display unit and the second translucent display unit.
[0015] Another embodiment of the present disclosure provides a combined self-powered transmissive display device comprising: a first translucent display unit including a first translucent region for receiving light rays and a peripheral region surrounding the first translucent region; a second translucent display unit including a second translucent region overlapping the first translucent region and a non-translucent region surrounding the second translucent region and overlapping the peripheral region, the second translucent display unit being stacked on the first translucent display unit; and a power generation module being stacked on the second translucent display unit, wherein light rays sequentially pass through the first translucent region and the second translucent region to enter the power generation module, and the power generation module converts the light rays into electrical energy and provides the electrical energy to the first translucent display unit and the second translucent display unit.
[0016] In another implementation of the embodiment, the power generating module includes an energy harvesting area for converting light into electrical energy, the energy harvesting area overlapping the second light-transmitting area.
[0017] In another example of the embodiment, the total area of the first light-transmitting region and the non-light-transmitting region is A1, and the overlapping area of the overlapping region between the first light-transmitting region and the second light-transmitting region is A2, satisfying the condition A2 / A1≧50%.
[0018] In another embodiment of the above embodiment, the first light-transmitting display unit is a reflective light-emitting panel, and the second light-transmitting display unit is an active light-emitting panel.
[0019] In another implementation of the embodiment, the first light-transmitting region is a pixel region, and the second light-transmitting region is a transparent plate.
[0020] In another embodiment of the above-described embodiment, the peripheral area is made of a transparent material, and the non-transmitting area includes a plurality of scan lines and a plurality of data lines.
[0021] In another implementation of the above embodiment, the peripheral area includes a plurality of first scan lines and a plurality of first data lines, and the non-light-transmitting area includes a plurality of second scan lines and a plurality of second data lines.
[0022] In another example of the embodiment, the power generation module is a silicon crystalline solar cell, a thin film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.
[0023] In another example of the embodiment, the power generation module includes a plurality of power generation units arranged at intervals from each other, each having a unit length and a unit pitch between them, and a plurality of conductive wires arranged at intervals from each other, used to connect the plurality of power generation units in series, and having a conductor pitch between them, wherein at least one of the unit length, unit pitch, and conductor pitch is 1 centimeter or more.
[0024] In another example of the embodiment, the composite self-powered transmissive display device further includes a storage unit electrically connected to the first translucent display unit, the second translucent display unit, and the power generation module, for storing electrical energy and providing the electrical energy to the first translucent display unit and the second translucent display unit. [Brief explanation of the drawings]
[0025] [Figure 1] 1 is a schematic three-dimensional view showing a combined self-power generation transmissive display device according to a first example of a first embodiment of the present disclosure. [Figure 2] FIG. 2 is an exploded schematic view showing the combined self-power generation transmission display device of FIG. [Figure 3] FIG. 2 is a top view showing the combined self-power generation transmission display device of FIG. [Figure 4] 2 is a partially transparent top view showing a power generation module of the combined self-power generation transmission display device of FIG. 1. FIG. [Figure 5] FIG. 2 is an exploded schematic view showing a combined self-power generation transmission display device according to a second example of the first embodiment of the present disclosure. [Figure 6] FIG. 10 is a schematic three-dimensional view showing a combined self-power generation transmissive display device according to a first example of a second embodiment of the present disclosure. [Figure 7] FIG. 7 is an exploded schematic view showing the combined self-power generation transmission display device of FIG. [Figure 8] FIG. 7 is a top view showing the combined self-power generation transmission display device of FIG. 6. [Figure 9]FIG. 10 is an exploded schematic view showing a combined self-power generating transmissive display device according to a second example of a second embodiment of the present disclosure. [Figure 10] 10 is a top view showing the combined self-power generation transmission display device of FIG. 9. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0026] Hereinafter, several embodiments of the present disclosure will be described with reference to the drawings. For clarity, many practical details are set forth in the following description. However, it should be understood that these practical details are not intended to limit the disclosure. That is, in some embodiments of the present disclosure, these practical details are not necessary. Also, to simplify the drawings, some conventional structures and elements may be shown simply and diagrammatically in the drawings, and repeated elements may be designated by the same or similar reference numerals.
[0027] Furthermore, in this specification, when an element (or unit, module, etc.) is "connected / coupled" to another element, this may mean that the element is directly connected / coupled to the other element, or that the element is indirectly connected / coupled to the other element, i.e., there is another element between the element and the other element. Only when an element is "directly connected / coupled" to another element is it meant that there is no other element between the element and the other element. Terms such as "first," "second," and "third" are used merely to describe different elements and do not limit the elements themselves; therefore, a first element may be replaced with a second element. Furthermore, the combinations of elements / units / circuits in this specification are not ordinary or conventional combinations commonly known in this field, and whether the elements / units / circuits themselves are conventional or not should not be used to determine whether the combinations can be easily achieved by those skilled in the art.
[0028] Please refer to Figures 1, 2, and 3 together. Figure 1 is a three-dimensional schematic diagram showing a combined self-powered transparent display device according to a first example of a first embodiment of the present disclosure. Figure 2 is an exploded schematic diagram showing the combined self-powered transparent display device of Figure 1. Figure 3 is a top view showing the combined self-powered transparent display device of Figure 1. As shown in Figures 1, 2, and 3, the combined self-powered transparent display device 100 is formed by stacking a multi-layer structure, and includes a first translucent display unit 110, a second translucent display unit 120, and a power generation module 130.
[0029] The first light-transmitting display unit 110 is the top layer of the composite self-powered transparent display device 100 and includes a first light-transmitting region 111 and a non-light-transmitting region 112. The first light-transmitting region 111 is used for receiving light R. The non-light-transmitting region 112 is arranged to surround the periphery of the first light-transmitting region 111. The second light-transmitting display unit 120 is an intermediate layer of the composite self-powered transparent display device 100 and is stacked below the first light-transmitting display unit 110. The second light-transmitting display unit 120 includes a second light-transmitting region 121 and a peripheral region 122. The second light-transmitting region 121 overlaps the first light-transmitting region 111. The peripheral region 122 is arranged to surround the periphery of the second light-transmitting region 121 and overlaps with the non-light-transmitting region 112. The power-generating module 130 is stacked below the second light-transmitting display unit 120. Light R passes through the first light-transmitting region 111 and the second light-transmitting region 121 in order to enter the power-generating module 130. The power-generating module 130 is the bottom layer of the composite self-powered transparent display device 100, and converts the light R into electrical energy P and provides the electrical energy P to the first light-transmitting display unit 110 and the second light-transmitting display unit 120.
[0030] Specifically, a high-transmittance adhesive layer (not shown) is provided between the first light-transmitting display unit 110 and the second light-transmitting display unit 120, and another high-transmittance adhesive layer (not shown) is provided between the second light-transmitting display unit 120 and the power generation module 130. Both of these adhesive layers may be made of optical clear adhesive (OCA). The thickness of the adhesive layer is only tens to hundreds of microns, so it can be ignored. Therefore, the first light-transmitting display unit 110, the second light-transmitting display unit 120, and the power generation module 130 appear to be in close contact with each other.
[0031] The first light-transmitting display unit 110 may be an active light-emitting panel, such as a micro-light-emitting diode (MicroLED) panel.
[0032] The first light-transmitting region 111 is a transparent substrate or a transparent plate made of a transparent material, for example, a transparent substrate made of indium tin oxide (ITO), but is not limited thereto.
[0033] The non-light-transmitting region 112 includes a first region 1121 and a second region 1122 that are opaque and connected to each other. The first region 1121 may include a plurality of LED dies and a plurality of thin-film transistors (TFTs). The second region 1122 has a rectangular shape and may include a plurality of scan lines for transmitting scan signals to the LED dies and a plurality of data lines for transmitting data signals to the LED dies. The first region 1121 is concentrated at the inner corner of the second region 1122, thereby reducing the opaque region of the first light-transmitting display unit 110 and enlarging the transparent region, thereby increasing the transmittance area of the light R (i.e., the area of the first light-transmitting region 111 in FIG. 3 ).
[0034] The second light-transmitting display unit 120 may be a reflective / emissive panel such as a cholesteric liquid crystal display (ChLCD) panel, and does not have a TFT element because its driving method is passive. The second light-transmitting region 121 is a pixel region (i.e., an effective pixel region of the ChLCD) that not only reflects light R to provide a screen by utilizing the properties of cholesteric liquid crystal, but also transmits light R to the power generating module 130 located underneath. Specifically, the light R may be outdoor or indoor ambient light. When the second light-transmitting display unit 120 is in a planar state, the cholesteric liquid crystal is aligned in an orderly manner, so that most of the light R is reflected by the second light-transmitting region 121, but a small amount of light R can transmit through the second light-transmitting region 121 to reach the power generating module 130. When the second translucent display unit 120 is in the focal conic state, the alignment of the cholesteric liquid crystal is disrupted, and the second translucent region 121 scatters the light R, thereby increasing the amount of light R that passes through and reaches the power generating module 130, thereby improving power generation efficiency. The peripheral region 122 can be an isolation region, which is a non-conductive isolation layer that surrounds the second translucent region 121 and is made of a transparent material, such as, but not limited to, glass. As a result, the hybrid self-powered transmissive display device 100 of the present disclosure has both active emission and reflective emission functions, and simultaneously allows the light R to be utilized by the bottom power generating module 130, reducing reflected light and improving readability in strong light. Furthermore, the bottom power generating module 130 can perform photoelectric conversion to achieve a self-powered effect and energy saving effects.
[0035] The total area of the first light-transmitting region 111 and the non-light-transmitting region 112 may be A1 (i.e., the top surface area of the first light-transmitting display unit 110), and the overlapping area of the first light-transmitting region 111 and the second light-transmitting region 121 may be A2, satisfying the condition A2 / A1≧50%, preferably A2 / A1≧90%. Thus, in the hybrid self-powered transmissive display device 100 of the present disclosure, the first light-transmitting region 111 overlaps the second light-transmitting region 121, thereby increasing the light-transmitting area and effectively reducing the area blocking light R, thereby further improving the power generation efficiency of the power generation module 130. In this embodiment, the first light-transmitting region 111 and the second light-transmitting region 121 may overlap completely or partially. When first light-transmitting region 111 and second light-transmitting region 121 completely overlap, the overlapping region between first light-transmitting region 111 and second light-transmitting region 121 is maximized, and high power generation efficiency can be achieved.
[0036] In addition, in conventional hybrid display devices, the multiple scanning lines and multiple data lines both exhibit periodic stripes, which are prone to forming moire patterns on the image screen, further degrading visual quality. However, in the present disclosure, the first transparent region 111 and the second transparent region 121 are arranged to overlap, and the non-transparent region 112 and the peripheral region 122 are arranged to overlap, so that the non-transparent region 112, where the multiple scanning lines and multiple data lines are provided, is hidden from the image screen displayed by the first transparent region 111 and the second transparent region 121, effectively reducing the chance of moire formation and further ensuring the screen quality of the hybrid self-powered transmissive display device 100.
[0037] Please refer to FIGS. 1, 2, 3, and 4 together. FIG. 4 is a partially transparent top view showing a power generation module of the hybrid self-powered transparent display device of FIG. 1. As shown in FIGS. 1, 2, 3, and 4, the power generation module 130 may be, for example, but not limited to, a silicon crystalline solar cell, a thin-film solar cell, an organic solar cell (OSC), a perovskite solar cell (PSC), or a dye-sensitized solar cell (DSSC), and may also be other solar cells capable of converting ambient light into electrical energy P. The power generation module 130 may include an energy harvesting region 131 for converting light R into electrical energy P. The energy harvesting region 131 is the effective power generation region of the power generation module 130, which actually refers to the region having a photoelectric conversion function and should exclude non-power generation regions (e.g., insulating regions, prohibited regions, and conductive line regions). The energy harvesting area 131 includes a plurality of power generating units 1311 arranged in an array, and each power generating unit 1311 may be a solar cell. The energy harvesting area 131 may completely or partially overlap with the second light-transmitting area 121. When the energy harvesting area 131 completely overlaps with the second light-transmitting area 121, the effective power generating area for absorbing light rays R can be maximized, further improving power generation efficiency. The conductive wire area can transmit the current (corresponding electrical energy P) generated in the energy harvesting area 131 to the first light-transmitting display unit 110, the second light-transmitting display unit 120, or an external circuit.
[0038] The composite self-powered transparent display device 100 may further include a storage unit 140 such as a rechargeable battery. The storage unit 140 is electrically connected to the first translucent display unit 110, the second translucent display unit 120, and the power generation module 130. The storage unit 140 receives and stores electric energy P from the conductor region of the power generation module 130, and provides the electric energy P to the first translucent display unit 110 and the second translucent display unit 120.
[0039] In FIG. 4 , the multiple power generation units 1311 in the energy harvesting area 131 are arranged at intervals. Each power generation unit 1311 has a unit length L. A unit pitch G1 exists between two spaced-apart power generation units 1311. The power generation module 130 may further include a plurality of conductive wires 1312. These conductive wires 1312 are arranged at intervals and are used to connect the multiple power generation units 1311 in the energy harvesting area 131 in series. A conductor pitch G2 exists between the two spaced-apart conductive wires 1312. At least one of the unit length L, the unit pitch G1, and the conductor pitch G2 is 1 centimeter (cm) or greater. Specifically, the power generation units 1311 and the conductive wires 1312 both exhibit periodic stripes, and thus the insulating region for electrically insulating the multiple power generation units 1311 also exhibits periodic stripes. In a typical display, the pixel size is usually between 50 and 300 microns (μm), and 3 to 17 stripes are visible at a viewing angle of 1 degree at a normal observation distance (e.g., 50 cm). Therefore, by controlling the unit length L, unit pitch G1, and conductor pitch G2 to 1 cm or more and making the brightness contrast of the periodic stripes smaller than 0.55, the visual sensitivity to moiré can be reduced, and further, spatial interference of the stripes on the first and second light-transmitting display units 110 and 120 caused by the power generation module 130 can be avoided, thereby reducing the probability of the moiré effect occurring.
[0040] Please refer to Fig. 5, which is an exploded schematic diagram showing a combined self-powered transmissive display device according to a second example of the first embodiment of the present disclosure. As shown in Fig. 5, the combined self-powered transmissive display device 200 includes a first translucent display unit 210, a second translucent display unit 220, and a power generation module 230. The first translucent display unit 210 and the power generation module 230 are similar elements to the first translucent display unit 110 and the power generation module 130 in Fig. 2, respectively, and therefore their detailed structures and functions will not be described in detail.
[0041] The second light-transmitting display unit 220 may be a reflective / emissive panel such as a ChLCD panel, and differs from the display unit shown in FIG. 2 in that it may have a TFT element because its driving method is active. The second light-transmitting display unit 220 includes a second light-transmitting area 221 and a peripheral area 222 surrounding the second light-transmitting area 221. The second light-transmitting area 221 overlaps the first light-transmitting area 211 of the first light-transmitting display unit 210 and overlaps the energy harvesting area 231 of the power generation module 230. The peripheral area 222 overlaps the non-light-transmitting area 212 of the first light-transmitting display unit 210. Specifically, the non-light-transmitting area 212 may include a plurality of first scan lines and a plurality of first data lines. The peripheral region 222 may include a third region 2221 and a fourth region 2222 that are connected to each other as non-transmissive regions, and the third region 2221 may include a plurality of TFT elements, and the fourth region 2222 may have a rectangular frame and include a plurality of second scan lines and a plurality of second data lines. The third region 2221 may be concentrated at the inner corners of the fourth region 2222, thereby reducing the opaque region of the second translucent display unit 220 and expanding the transparent region. The first scanning lines and first data lines, which are opaque above, overlap the second scanning lines and second data lines, which are opaque below, and the first light-transmitting area 211, the second light-transmitting area 221, and the energy harvesting area 231 overlap each other, thereby maximizing the light-transmitting area and improving the aperture ratio of light rays, which not only improves the power generation efficiency of the power generation module 230 but also prevents the formation of a moiré effect due to spatial interference of stripes on the upper and lower panels.
[0042] Please refer to Figures 6, 7, and 8 together. Figure 6 is a three-dimensional schematic diagram showing a combined self-powered transparent display device according to a first example of the second embodiment of the present disclosure. Figure 7 is an exploded schematic diagram showing the combined self-powered transparent display device of Figure 6. Figure 8 is a top view showing the combined self-powered transparent display device of Figure 6. As shown in Figures 6, 7, and 8, the combined self-powered transparent display device 300 is formed by laminating a multi-layer structure and includes a first translucent display unit 310, a second translucent display unit 320, a power generation module 330, and a power storage unit 340. The power generation module 330 and the power storage unit 340 are elements similar to the power generation module 130 and the power storage unit 140 of Figure 1, respectively, and therefore their detailed structures and functions will not be described in detail.
[0043] The first light-transmitting display unit 310 includes a first light-transmitting region 311 and a peripheral region 312. The first light-transmitting region 311 is used for receiving light R. The peripheral region 312 is arranged to surround the periphery of the first light-transmitting region 311. The second light-transmitting display unit 320 is stacked below the first light-transmitting display unit 310 and includes a second light-transmitting region 321 and a non-light-transmitting region 322. The second light-transmitting region 321 overlaps the first light-transmitting region 311. The non-light-transmitting region 322 is arranged to surround the periphery of the second light-transmitting region 321 and overlaps the peripheral region 312. The power-generating module 330 is stacked below the second light-transmitting display unit 320. Light R passes through the first light-transmitting region 311 and the second light-transmitting region 321 in order to enter the power-generating module 330. The energy harvesting region 331 of the power generation module 330 converts the light R into electrical energy P, and provides the electrical energy P to the first light-transmitting display unit 310 and the second light-transmitting display unit 320 .
[0044] Specifically, the first light-transmitting display unit 310 may be a reflective / emissive panel such as a ChLCD panel, which is driven inactively and therefore does not have a TFT element. The first light-transmitting region 311 is a pixel region (i.e., an effective pixel region of the ChLCD) that not only reflects light R to provide a screen by utilizing the properties of cholesteric liquid crystal, but also transmits light R to the energy harvesting region 331 of the power generating module 330. The peripheral region 312 may be an isolation region, which is a non-conductive isolation layer that surrounds the first light-transmitting region 311 and is made of a transparent material, such as, but not limited to, glass.
[0045] The second light-transmitting display unit 320 may be an active light-emitting panel such as a MicroLED panel. The second light-transmitting area 321 is a transparent substrate such as an ITO transparent substrate or a transparent plate made of a transparent material. The non-light-transmitting area 322 includes a first area 3221 and a second area 3222 that are connected to each other and are opaque. The first area 3221 may include a plurality of LED dies and a plurality of TFTs. The second area 3222 may have a rectangular frame and include a plurality of scan lines and a plurality of data lines. The first area 3221 is concentrated at the inner corners of the second area 3222, thereby reducing the opaque area of the second light-transmitting display unit 320 and expanding the transparent area, thereby increasing the area through which light R can pass.
[0046] The total area of the first light-transmitting region 311 and the peripheral region 312 may be A1 (i.e., the top area of the first light-transmitting display unit 310), and the overlapping area of the first light-transmitting region 311 and the second light-transmitting region 321 may be A2, which satisfies the condition A2 / A1≧50%, preferably A2 / A1≧90%. Thus, the combined self-powered transmissive display device 300 of the present disclosure has a structure in which the first light-transmitting region 311 overlaps the second light-transmitting region 321, thereby increasing the light-transmitting area and effectively reducing the area blocking light R, thereby further improving the power generation efficiency of the power generation module 330.
[0047] Specifically, the first light-transmitting display unit 310 and the second light-transmitting display unit 320 of the combined self-power-generating transparent display device 300 in Fig. 6 can be swapped to form the combined self-power-generating transparent display device 300 in Fig. 1. In other words, the first light-transmitting display unit 310 in Fig. 6 and the second light-transmitting display unit 120 in Fig. 1 are similar elements, and the second light-transmitting display unit 320 and the first light-transmitting display unit 110 are also similar elements. Therefore, the combined self-power-generating transparent display device 300 of the present disclosure also has both reflective light-emitting and active light-emitting functions, and performs photoelectric conversion using the energy harvesting region 331 of the power generation module 330 to achieve a self-power generation effect. In addition, the hybrid self-powered transparent display device 300 of the present disclosure has an overlapping arrangement between the first light-transmitting area 311 and the second light-transmitting area 321 and an overlapping arrangement between the peripheral area 312 and the non-light-transmitting area 322, so that the non-light-transmitting area 322, which is provided with multiple scanning lines and multiple data lines, is prevented from appearing on the screen of the image displayed by the first light-transmitting area 311 and the second light-transmitting area 321, thereby effectively reducing the chance of moire formation and further ensuring screen quality.
[0048] Please refer to Figures 9 and 10 together. Figure 9 is an exploded schematic view showing a combined self-powered transparent display device according to a second example of the second embodiment of the present disclosure. Figure 10 is a top view showing the combined self-powered transparent display device of Figure 9. As shown in Figures 9 and 10, the combined self-powered transparent display device 400 includes a first translucent display unit 410, a second translucent display unit 420, and a power generation module 430. The second translucent display unit 420 and the power generation module 430 are similar elements to the second translucent display unit 320 and the power generation module 330 of Figure 7, respectively, and therefore their detailed structures and functions will not be described in detail.
[0049] The first light-transmitting display unit 410 may be a reflective / emissive panel such as a ChLCD panel, and differs from the display unit shown in FIG. 7 in that it may have a TFT element due to its active driving method. The first light-transmitting display unit 410 includes a first light-transmitting area 411 and a peripheral area 412 surrounding the first light-transmitting area 411. The first light-transmitting area 411 overlaps the second light-transmitting area 421 of the second light-transmitting display unit 420 and the energy harvesting area 431 of the power generation module 430. The peripheral area 412 overlaps the non-light-transmitting area 422 of the second light-transmitting display unit 420. Specifically, the peripheral area 412 may be a separate non-light-transmitting area, which may include a plurality of first scan lines and a plurality of first data lines, and the non-light-transmitting area 422 may include a plurality of second scan lines and a plurality of second data lines. The first scanning lines and first data lines, which are opaque above, overlap the second scanning lines and second data lines, which are opaque below, and the first light-transmitting area 411, the second light-transmitting area 421, and the energy harvesting area 431 overlap each other, thereby maximizing the light-transmitting area and improving the aperture ratio of light rays, which not only improves the power generation efficiency of the power generation module 430 but also prevents the formation of a moiré effect due to spatial interference of stripes on the upper and lower panels.
[0050] In summary, the present disclosure has the following advantages: First, it combines the functions of active emission and reflective emission to realize two different display technologies, and the photovoltaic module performs photoelectric conversion to provide a self-power generation effect. Second, the structural arrangement in which the first light-transmitting region overlaps the second light-transmitting region maximizes the light transmittance area and further improves the power generation efficiency of the photovoltaic module. Third, the overlapping arrangement of the first light-transmitting region and the second light-transmitting region, as well as the overlapping arrangement of the non-light-transmitting region having the scan lines and data lines and the peripheral region, effectively reduces the chance of moire formation and further ensures screen quality.
[0051] Although the present disclosure has been disclosed as above by way of embodiments, it is not limited thereto, and those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure is determined by the content specified in the following claims. [Explanation of symbols]
[0052] 100, 200, 300, 400 Combined self-powered transparent display device 110, 210, 310, 410 First light-transmitting display unit 111, 211, 311, 411 First light-transmitting region 112, 212, 322, 422 Non-transparent area 1121, 3221 First Area 1122, 3222 Second Area 120, 220, 320, 420 Second translucent display unit 121, 221, 321, 421 Second transparent region 122, 222, 312, 412 surrounding areas 2221 Third Realm 2222 The Fourth Realm 130, 230, 330, 430 Power Generation Module 131, 231, 331, 431 Energy harvesting area 1311 Power Generation Unit 1312 Conductive wire 140, 340 storage unit G1 unit pitch G2 conductor pitch L unit length P Electrical energy R ray
Claims
1. a first light-transmitting display unit including a first light-transmitting region for receiving light rays and a non-light-transmitting region surrounding the first light-transmitting region; a second light-transmitting display unit including a second light-transmitting region overlapping the first light-transmitting region and a peripheral region surrounding the second light-transmitting region and overlapping the non-light-transmitting region, the second light-transmitting display unit being stacked on the first light-transmitting display unit; a power generation module stacked on the second light-transmitting display unit; Equipped with The light rays pass through the first light-transmitting area and the second light-transmitting area in sequence to enter the power generation module, and the power generation module converts the light rays into electrical energy and provides the electrical energy to the first light-transmitting display unit and the second light-transmitting display unit.
2. The composite self-power-generating transmissive display device according to claim 1 , wherein the power generating module includes an energy harvesting area for converting the light into the electrical energy, and the energy harvesting area overlaps with the second light-transmitting area.
3. The total area of the first light-transmitting region and the non-light-transmitting region is A １ and the overlapping area of the overlapping region between the first light-transmitting region and the second light-transmitting region is A ２ and A ２ / A １ ≧50% 2. The composite self-power generating transmission display device according to claim 1, which satisfies the above condition.
4. 2. The combined self-power-generating transmissive display device of claim 1, wherein the first transmissive display unit is an active light-emitting panel, and the second transmissive display unit is a reflective light-emitting panel.
5. 2. The composite self-power generating transmissive display device according to claim 1, wherein the first light-transmitting region is a transparent plate, and the second light-transmitting region is a pixel region.
6. The hybrid self-powering transmissive display device according to claim 1 , wherein the non-transmissive area includes a plurality of scan lines and a plurality of data lines, and the peripheral area is made of a transparent material.
7. 2. The composite self-power generating transmissive display device according to claim 1, wherein the non-transmissive region includes a plurality of first scanning lines and a plurality of first data lines, and the peripheral region includes a plurality of second scanning lines and a plurality of second data lines.
8. The hybrid self-power generating transmissive display device according to claim 1 , wherein the power generating module is a silicon crystalline solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.
9. The power generation module includes: a plurality of power generating units arranged at intervals from one another, each having a unit length and a unit pitch therebetween; a plurality of conductive wires arranged at intervals from one another, used to connect the plurality of power generating units in series, and having a conductive pitch therebetween; Including, The composite self-power generating transmissive display device according to claim 1 , wherein at least one of the unit length, the unit pitch, and the conductor pitch is 1 cm or more.
10. 2. The composite self-powered transparent display device according to claim 1, further comprising a storage unit electrically connected to the first translucent display unit, the second translucent display unit and the power generation module, for storing the electrical energy and providing the electrical energy to the first translucent display unit and the second translucent display unit.
11. a first light-transmitting display unit including a first light-transmitting region for receiving light rays and a peripheral region surrounding the first light-transmitting region; a second light-transmitting display unit including a second light-transmitting region overlapping the first light-transmitting region and a non-light-transmitting region surrounding the second light-transmitting region and overlapping the peripheral region, the second light-transmitting display unit being stacked on the first light-transmitting display unit; a power generation module stacked on the second light-transmitting display unit; Equipped with The light rays pass through the first light-transmitting area and the second light-transmitting area in sequence to enter the power generation module, and the power generation module converts the light rays into electrical energy and provides the electrical energy to the first light-transmitting display unit and the second light-transmitting display unit.
12. The hybrid self-power-generating transmissive display device according to claim 11 , wherein the power generating module includes an energy harvesting area for converting the light into the electrical energy, and the energy harvesting area overlaps with the second light-transmitting area.
13. The total area of the first light-transmitting region and the non-light-transmitting region is A １ and the overlapping area of the overlapping region between the first light-transmitting region and the second light-transmitting region is A ２ and A ２ / A １ ≧50% 12. The composite self-power generating transmission display device according to claim 11, which satisfies the following condition:
14. 12. The combined self-powering transmissive display device of claim 11, wherein the first transmissive display unit is a reflective light-emitting panel, and the second transmissive display unit is an active light-emitting panel.
15. The composite self-power generating transmissive display device according to claim 11, wherein the first light-transmitting region is a pixel region, and the second light-transmitting region is a transparent plate material.
16. The hybrid self-powering transmissive display device of claim 11 , wherein the peripheral area is made of a transparent material, and the non-transmissive area includes a plurality of scan lines and a plurality of data lines.
17. The composite self-power-generating transmissive display device of claim 11 , wherein the peripheral region includes a plurality of first scanning lines and a plurality of first data lines, and the non-transmissive region includes a plurality of second scanning lines and a plurality of second data lines.
18. The hybrid self-power generating transmissive display device according to claim 11, wherein the power generating module is a silicon crystalline solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.
19. The power generation module includes: a plurality of power generating units arranged at intervals from one another, each having a unit length and a unit pitch therebetween; a plurality of conductive wires arranged at intervals from one another, used to connect the plurality of power generating units in series, and having a conductive pitch therebetween; Including, The composite self-power generating transmissive display device according to claim 11, wherein at least one of the unit length, the unit pitch, and the conductor pitch is 1 centimeter or more.
20. 12. The composite self-powered transparent display device according to claim 11, further comprising a storage unit electrically connected to the first translucent display unit, the second translucent display unit and the power generation module, for storing the electrical energy and providing the electrical energy to the first translucent display unit and the second translucent display unit.