Combined self-powered transparent display device

Abstract

To provide a composite self-powered transparent display device.SOLUTION: A composite self-powered transparent display device comprises: a first light-transmitting display unit that includes a first light-transmitting region and a light non-transmitting region provided to surround the first light-transmitting region; a second light-transmitting display unit that includes a second light-transmitting region overlapping with the first light-transmitting region and a peripheral region provided to surround the second light-transmitting region and overlapping the light non-transmitting region, and is stacked on the first light-transmitting display unit; and a power generation module that is stacked on the second light-transmitting display unit. A light ray penetrates the first light-transmitting region and the second light-transmitting region sequentially and enters the power generation module, and the power generation module converts the light ray into electrical energy to provide the electrical energy to the first light-transmitting display unit and the second light-transmitting display unit. Thus, the composite self-powered transparent display device can improve power generation efficiency and suppress moire pattern formation.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a display device, and more particularly, to a composite self-powered transmissive display device.

Background Art

[0002] With the continuous improvement of display technology, new display styles have become increasingly numerous. It has evolved from a cathode ray tube (CRT) display to thin displays such as liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs), and further expanded to LED splice displays. The display function has evolved from general displays to transmissive backgrounds such as OLEDs and micro light-emitting diode (MicroLED) displays. Based on the improvement of screen resolution, the requirement for the number of light-emitting sources increases, and the total power consumption of the display shows a tendency to increase. Therefore, how to save power or utilize renewable energy generated by sunlight has come to be noticed.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Conventional cholesteric liquid crystal displays (ChLCDs) and MicroLED displays are both transparent and can be applied to photovoltaic power generation systems. However, to combine these three elements and maximize the synergistic effect of the two displays, thereby increasing the power generation efficiency of the photovoltaic system, a new panel arrangement structure must be proposed. Furthermore, since both displays and the photovoltaic system exhibit periodic stripes, arbitrarily stacking them easily forms moiré patterns on the image, severely impacting visual quality. In light of this, developing a composite display device that is highly efficient and less prone to moiré formation is indeed a pressing issue that related industries are currently seeking to resolve.

[0004] The purpose of this disclosure is to provide a composite self-powered transparent display device that is stacked in a multilayer structure, and in which the first light-transmitting region of the first display unit overlaps with the second light-transmitting region of the second light-transmitting display unit, thereby maximizing the area through which light rays can pass, further increasing the power generation efficiency of the power generation module located at the bottom, and 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, a composite self-powered transparent display device is provided, comprising: a first transparent display unit including a first light-transmitting region for light rays to enter and a non-transmitting region provided so as to surround the first light-transmitting region; a second transparent display unit provided stacked on the first transparent display unit, including a second light-transmitting region overlapping with the first transparent display unit and a peripheral region provided so as to surround the second transparent display unit and overlapping with the non-transmitting region; and a power generation module provided stacked on the second transparent display unit, wherein light rays pass through the first and second transparent display units in sequence and 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 and second transparent display units.

[0006] In another embodiment of the above-described embodiment, the power generation module includes an energy harvesting region for converting light rays into electrical energy, the energy harvesting region overlapping with a second light-transmitting region.

[0007] In another embodiment of the above-described embodiment, the total area of ​​the first light-transmitting region and the non-light-transmitting region is A1, the overlapping area of ​​the overlapping region between the first light-transmitting region and the second light-transmitting region is A2, and the condition A2 / A1 ≥ 50% is satisfied.

[0008] In another embodiment of the above-described 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 embodiment of the above-described embodiment, the first light-transmitting region is a transparent plate material. Includes The second light-transmitting region is the pixel region.

[0010] In another embodiment of the above-described embodiment, the non-transparent region includes a plurality of scan lines and a plurality of data lines, and the peripheral region is made of a transparent material. including .

[0011] In another embodiment of the above-described embodiment, the non-transparent 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 other embodiments of the above-described embodiment, the power generation module is a silicon crystal solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.

[0013] In another embodiment of the above-described 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 wire pitch between them, wherein at least one of the unit length, unit pitch and wire pitch is 1 centimeter or more.

[0014] In another embodiment of the above-described embodiment, the composite self-powered transparent display device further comprises a power storage unit electrically connected to the first transparent display unit, the second transparent display unit, and the power generation module for storing electrical energy and supplying electrical energy to the first and second transparent display units.

[0015] According to another embodiment of the present disclosure, a composite self-powered transparent display device is provided, comprising: a first transparent display unit including a first light-transmitting region for light rays to enter and a peripheral region provided to surround the first light-transmitting region; a second transparent display unit provided stacked on the first transparent display unit, including a second light-transmitting region overlapping with the first transparent display unit and a non-transmitting region provided to surround the second transparent display unit and overlapping with the peripheral region; and a power generation module provided stacked on the second transparent display unit, wherein light rays pass through the first and second transparent display units in sequence and 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 and second transparent display units.

[0016] In another embodiment of the above-described embodiment, the power generation module includes an energy harvesting region for converting light rays into electrical energy, the energy harvesting region overlapping with a second light-transmitting region.

[0017] In another embodiment of the above-described embodiment, the total area of ​​the first light-transmitting region and the non-light-transmitting region is A1, the overlapping area of ​​the overlapping region between the first light-transmitting region and the second light-transmitting region is A2, and the condition A2 / A1 ≥ 50% is satisfied.

[0018] In another embodiment of the above-described 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 embodiment of the above-described embodiment, the first light-transmitting region is a pixel region, and the second light-transmitting region is a transparent plate material. including .

[0020] In another embodiment of the above embodiment, the peripheral region is made of a transparent material. Includes The non-transparent region includes multiple scan lines and multiple data lines.

[0021] In another embodiment of the above-described embodiment, the peripheral region includes a plurality of first scan lines and a plurality of first data lines, and the non-transparent region includes a plurality of second scan lines and a plurality of second data lines.

[0022] In other embodiments of the above-described embodiment, the power generation module is a silicon crystal solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.

[0023] In other embodiments of the above-described embodiment, the power generation module includes a plurality of power generation units arranged at intervals from each other, each having a unit length and having a unit pitch therebetween, and a plurality of conductive wires arranged at intervals from each other and used for connecting the plurality of power generation units in series, having a wire pitch therebetween, and at least one of the unit length, the unit pitch, and the wire pitch is 1 centimeter or more.

[0024] In other embodiments of the above-described embodiment, the composite self-power generation transmissive display device further includes a power storage unit electrically connected to the first transmissive display unit, the second transmissive display unit, and the power generation module, storing electrical energy, and providing the electrical energy to the first transmissive display unit and the second transmissive display unit.

Brief Description of the Drawings

[0025] [Figure 1] It is a three-dimensional schematic diagram showing a composite self-power generation transmissive display device according to the first example of the first embodiment of the present disclosure. [Figure 2] It is an exploded schematic diagram showing the composite self-power generation transmissive display device of FIG. 1. [Figure 3] It is a top view showing the composite self-power generation transmissive display device of FIG. 1. [Figure 4] It is a partially transparent top view showing the power generation module of the composite self-power generation transmissive display device of FIG. 1. [Figure 5] It is an exploded schematic diagram showing a composite self-power generation transmissive display device according to the second example of the first embodiment of the present disclosure. [Figure 6] It is a three-dimensional schematic diagram showing a composite self-power generation transmissive display device according to the first example of the second embodiment of the present disclosure. [Figure 7] It is an exploded schematic diagram showing the composite self-power generation transmissive display device of FIG. 6. [Figure 8] It is a top view showing the composite self-power generation transmissive display device of FIG. 6. [Figure 9]This is an exploded schematic diagram showing a composite self-powered transparent display device according to a second embodiment of the second embodiment of the contents of this disclosure. [Figure 10] Figure 9 is a top view showing a composite self-powered transparent display device. [Modes for carrying out the invention]

[0026] Several embodiments of this disclosure will be described below with reference to the drawings. For clarity, many practical details will be described in the following descriptions. However, it should be understood that these practical details are not intended to limit the disclosure. In other words, in some embodiments of this disclosure, these practical details are not necessary. Also, in order to simplify the drawings, some conventional structures and elements will be shown simply and schematically in the drawings, and repeated elements may be indicated by the same or similar reference numerals.

[0027] Furthermore, in this specification, when an element (or unit or module, etc.) is "connected / linked" to another element, it may mean that the element is directly connected / linked to the other element, or it may mean that the element is indirectly connected / linked to the other element, i.e., that another element is interposed between the element and the other element. Only when it is explicitly stated that an element is "directly connected / linked" to another element does it indicate that no other element is interposed between the element and the other element. Terms such as "first," "second," and "third" are merely for describing different elements and do not limit the elements themselves, so the first element may be replaced with the second element. Also, the combinations of elements / units / circuits in this specification are not common, ordinary or conventional combinations generally known in the art, and whether or not a combination relationship can be easily achieved by a person skilled in the art should not be determined by whether or not the elements / units / circuits themselves are conventional.

[0028] Please refer to Figures 1, 2, and 3 together. Figure 1 is a schematic three-dimensional view showing a composite self-powered transparent display device according to a first embodiment of the first embodiment of the present disclosure. Figure 2 is an exploded schematic view showing the composite self-powered transparent display device of Figure 1. Figure 3 is a top view showing the composite self-powered transparent display device of Figure 1. As shown in Figures 1, 2, and 3, the composite self-powered transparent display device 100 is formed by stacking a multilayer structure and includes a first light-transmitting display unit 110, a second light-transmitting display unit 120, and a power generation module 130.

[0029] The first light-transmitting display unit 110 is the uppermost layer of the composite self-powered light-transmitting 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 the incidence of light rays R. The non-light-transmitting region 112 is provided so as to surround the first light-transmitting region 111. The second light-transmitting display unit 120 is an intermediate layer of the composite self-powered light-transmitting 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 with the first light-transmitting region 111. The peripheral region 122 is provided so as to surround the second light-transmitting region 121 and overlaps with the non-light-transmitting region 112. The power generation module 130 is stacked below the second light-transmitting display unit 120. Light rays R pass through the first light-transmitting region 111 and the second light-transmitting region 121 in sequence and enter the power generation module 130. The power generation module 130 is the bottom layer of the composite self-powered light-transmitting display device 100 and converts the light rays R into electrical energy P, which it provides to the first light-transmitting display unit 110 and the second light-transmitting display unit 120.

[0030] Specifically, a highly transparent adhesive layer (not shown) is provided between the first translucent display unit 110 and the second translucent display unit 120, and another highly transparent adhesive layer (not shown) is provided between the second translucent display unit 120 and the power generation module 130. Both of these adhesive layers may be composed of optical clear adhesive (OCA). Since the thickness of the adhesive layers is only between tens and hundreds of microns, they can be ignored. Therefore, the first translucent display unit 110, the second translucent display unit 120, and the power generation module 130 appear to be in close contact.

[0031] The first light-transmitting display unit 110 may be an active light-emitting panel such as a microlight-emitting diode (MicroLED) panel.

[0032] The first light-transmitting region 111 is a transparent plate material formed from a transparent substrate or transparent material. Includes For example, a transparent substrate made of indium tin oxide (ITO). including That's good, but it's not limited to that.

[0033] The non-transparent region 112 includes an opaque first region 1121 and a second region 1122 that are connected to each other. The first region 1121 may include a plurality of LED dies and a plurality of thin-film transistors (TFTs), and the second region 1122 may have a rectangular frame and 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. By concentrating the first region 1121 in the inner corners of the second region 1122, the opaque region of the first translucent display unit 110 is reduced and the transparent region is expanded, increasing the area through which light rays R can pass (i.e., the area of ​​the first translucent region 111 in Figure 3).

[0034] The second light-transmitting display unit 120 may be a reflective light-emitting panel such as a cholesteric liquid crystal display (ChLCD) panel, and since its driving method is inactive, it does not have a TFT element. The second light-transmitting region 121 is a pixel region (i.e., an effective pixel region of the ChLCD) that can provide a screen by reflecting light rays R using the properties of the cholesteric liquid crystal, and can also transmit light rays R to the power generation module 130 located at the bottom. In detail, the light rays R may be ambient light from outside or inside. When the second light-transmitting display unit 120 is in a planar state, the cholesteric liquid crystal is arranged in an orderly manner, so that most of the light rays R are reflected by the second light-transmitting region 121, but a small amount of light rays R can pass through the second light-transmitting region 121 and reach the power generation module 130. When the second light-transmitting display unit 120 is in a focal conic state, the arrangement of the cholesteric liquid crystal is disrupted, and the second light-transmitting region 121 scatters light rays R. As a result, the number of light rays R that pass through and reach the power generation module 130 increases, improving power generation efficiency. The peripheral region 122 can be an isolation region, which is a non-conductive isolation layer and is provided so as to surround the second light-transmitting region 121, and is made of a transparent material. Includes The transparent material may be, for example, glass, but is not limited thereto. As a result, the composite self-powered transparent display device 100 of this disclosure combines the functions of active light emission and reflected light emission, and at the same time the light ray R is available from the power generation module 130 at the bottom, which not only reduces reflected light and improves readability in strong light, but also provides a self-power generation effect by performing photoelectric conversion by the power generation module 130 at the bottom, thereby achieving an energy saving effect.

[0035] Furthermore, the total area of ​​the first light-transmitting region 111 and the non-light-transmitting region 112 may be A1 (i.e., the top area of ​​the first light-transmitting display unit 110), the overlapping area of ​​the overlapping region of the first light-transmitting region 111 and the second light-transmitting region 121 is A2, satisfying the condition A2 / A1 ≥ 50%, preferably A2 / A1 ≥ 90%. As a result, the composite self-powered light-transmitting display device 100 of this disclosure increases the light-transmitting region by a structural arrangement in which the first light-transmitting region 111 overlaps the second light-transmitting region 121, effectively reduces the area that shields the light rays R, and further increases 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 completely overlap or may partially overlap. When the first light-transmitting region 111 and the second light-transmitting region 121 completely overlap, the overlapping area between the first light-transmitting region 111 and the second light-transmitting region 121 can be maximized, thereby achieving high power generation efficiency.

[0036] Furthermore, in conventional composite display devices, multiple scan lines and multiple data lines all exhibit periodic fringes, making it easy to form moiré patterns on the image screen and further degrading visual quality. However, the present disclosure achieves to ensure screen quality of the composite self-powered transparent display device 100 by arranging the first translucent region 111 and the second translucent region 121 to overlap and the non-translucent region 112 and the peripheral region 122 to overlap, thereby preventing the non-translucent region 112, which is provided with multiple scan lines and multiple data lines, from being displayed on the image screen by the first translucent region 111 and the second translucent region 121.

[0037] Please refer to Figures 1, 2, 3, and 4 together. Figure 4 is a locally transparent top view showing the power generation module of the composite self-powered transparent display device of Figure 1. As shown in Figures 1, 2, 3, and 4, the power generation module 130 may be, but is not limited to, a silicon crystal 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 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 rays R into electrical energy P. The energy harvesting region 131 is the effective power generation region of the power generation module 130 and actually represents the region that has the photoelectric conversion function, and it is necessary to exclude non-power generation regions (e.g., insulating regions, restricted regions, and conductive regions). The energy harvesting region 131 includes a plurality of power generation units 1311 arranged in an array, each power generation unit 1311 may be a solar cell. The energy harvesting region 131 may completely overlap or partially overlap the second light-transmitting region 121. When the energy harvesting region 131 completely overlaps the second light-transmitting region 121, the effective power generation area that absorbs light rays R can be maximized, and the power generation efficiency can be further increased. The conductor region can transmit the current (corresponding electrical energy P) generated in the energy harvesting region 131 to a first light-transmitting display unit 110, a second light-transmitting display unit 120, or an external circuit coupled to it.

[0038] The combined self-generating transparent display device 100 may further include a power storage unit 140 such as a rechargeable battery. The power 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 power storage unit 140 receives and stores electrical energy P from the conductor area of ​​the power generation module 130 and provides the electrical energy P to the first translucent display unit 110 and the second translucent display unit 120.

[0039] In Figure 4, the multiple power generation units 1311 in the energy harvesting region 131 are arranged with intervals between them. Each power generation unit 1311 has a unit length L. There is a unit pitch G1 between two spaced-apart power generation units 1311. The power generation module 130 may also include a plurality of conductive wires 1312. These conductive wires 1312 are arranged with intervals between them and are used to connect the multiple power generation units 1311 in the energy harvesting region 131 in series. There is a wire pitch G2 between two spaced-apart conductive wires 1312. At least one of the unit length L, unit pitch G1, and wire pitch G2 is 1 centimeter (cm) or more. In detail, both the power generation units 1311 and the conductive wires 1312 exhibit periodic stripes, and consequently, the insulating region for electrically insulating the multiple power generation units 1311 also exhibits periodic stripes. In typical displays, the pixel size is usually between 50 and 300 microns (μm), and 3 to 17 fringes can be seen at a normal viewing distance (e.g., 50 cm) with a field of view of 1 degree. Therefore, by controlling the unit length L, unit pitch G1, and wire pitch G2 to 1 cm or more, and reducing the brightness contrast of the periodic fringes to less than 0.55, the visual sensitivity to moiré patterns is reduced, and spatial interference of the fringes from the power generation module 130 to the first translucent display unit 110 and the second translucent display unit 120 can be avoided, thereby reducing the probability of the moiré effect occurring.

[0040] Please refer to Figure 5, an exploded schematic diagram showing a composite self-powered transparent display device according to a second embodiment of the first embodiment of the present disclosure. As shown in Figure 5, the composite self-powered transparent display device 200 includes a first light-transmitting display unit 210, a second light-transmitting display unit 220, and a power generation module 230. The first light-transmitting display unit 210 and the power generation module 230 are elements similar to the first light-transmitting display unit 110 and the power generation module 130 in Figure 2, respectively, so their detailed structure and function will not be described in detail.

[0041] The second light-transmitting display unit 220 may be a reflective light-emitting panel such as a ChLCD panel, and differs from Figure 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 region 221 and a peripheral region 222 that surrounds the second light-transmitting region 221. The second light-transmitting region 221 overlaps with the first light-transmitting region 211 of the first light-transmitting display unit 210 and overlaps with the energy harvesting region 231 of the power generation module 230. The peripheral region 222 overlaps with the non-light-transmitting region 212 of the first light-transmitting display unit 210. In detail, the non-light-transmitting region 212 may include a plurality of first scan lines and a plurality of first data lines. The peripheral region 222 may include a third opaque region 2221 and a fourth region 2222, which are connected to each other as separate non-transparent regions, and the third region 2221 may be provided with 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. By concentrating the third region 2221 in the inner corners of the fourth region 2222, the opaque region of the second translucent display unit 220 is reduced and the transparent region is expanded. The first scan line and first data line, which are opaque at the top, overlap with the second scan line and second data line, which are opaque at the bottom. The first light-transmitting region 211, the second light-transmitting region 221, and the energy harvesting region 231 overlap with each other. This maximizes the light-transmitting region and improves the aperture ratio of the light rays, thereby increasing the power generation efficiency of the power generation module 230. Furthermore, it avoids the formation of a moiré effect due to the spatial interference of stripes on the upper and lower panels.

[0042] Please refer to Figures 6, 7, and 8 together. Figure 6 is a schematic three-dimensional view showing a composite self-powered transparent display device according to the first embodiment of the second embodiment of the present disclosure. Figure 7 is an exploded schematic view showing the composite self-powered transparent display device of Figure 6. Figure 8 is a top view showing the composite self-powered transparent display device of Figure 6. As shown in Figures 6, 7, and 8, the composite self-powered transparent display device 300 is formed by lamination of a multilayer structure and includes a first light-transmitting display unit 310, a second light-transmitting 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 power storage unit 140 in Figure 1, respectively, so their detailed structure and function 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 the incident light ray R. The peripheral region 312 is provided so as to surround 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 with the first light-transmitting region 311. The non-light-transmitting region 322 is provided so as to surround the second light-transmitting region 321 and overlaps with the peripheral region 312. The power generation module 330 is stacked below the second light-transmitting display unit 320. The light ray R passes through the first light-transmitting region 311 and the second light-transmitting region 321 in order and enters the power generation module 330. The energy harvesting region 331 of the power generation module 330 converts light rays 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] In detail, the first light-transmitting display unit 310 may be a reflective light-emitting panel such as a ChLCD panel, and since its driving method is inactive, it 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 can provide a screen by reflecting light rays R using the properties of a cholesteric liquid crystal, and can also transmit light rays R to the energy harvesting region 331 of the power generation module 330. The peripheral region 312 may be an isolation region, and the isolation region is a non-conductive isolation layer and is provided so as to surround the first light-transmitting region 311, and is made of a transparent material. Includes The transparent material may be, for example, glass, but is not limited to this.

[0045] The second light-transmitting display unit 320 may be an active light-emitting panel such as a MicroLED panel. The second light-transmitting region 321 is a transparent substrate such as an ITO transparent substrate or a transparent plate material formed from a transparent material. including The non-transparent region 322 includes an opaque first region 3221 and a second region 3222 that are connected to each other. The first region 3221 may include a plurality of LED dies and a plurality of TFTs. The second region 3222 has a rectangular frame and may include a plurality of scan lines and a plurality of data lines. By concentrating the first region 3221 in the inner corners of the second region 3222, the opaque region of the second translucent display unit 320 is reduced and the transparent region is expanded, increasing the area through which light rays R can pass.

[0046] Furthermore, the total area of ​​the first light-transmitting region 311 and the surrounding region 312 may be A1 (i.e., the top area of ​​the first light-transmitting display unit 310), the overlapping area of ​​the overlapping region of the first light-transmitting region 311 and the second light-transmitting region 321 is A2, satisfying the condition A2 / A1 ≥ 50%, preferably A2 / A1 ≥ 90%. As a result, the composite self-powered light-transmitting display device 300 of this disclosure increases the light-transmitting region by a structural arrangement in which the first light-transmitting region 311 overlaps the second light-transmitting region 321, effectively reduces the region that shields the light rays R, and further improves 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 composite self-powered light-transmitting display device 300 in Figure 6 can be swapped to form the composite self-powered light-transmitting display device 300 in Figure 1. In other words, the first light-transmitting display unit 310 in Figure 6 and the second light-transmitting display unit 120 in Figure 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 composite self-powered light-transmitting display device 300 of this disclosure also combines the functions of reflected light emission and active light emission, and also provides a self-power generation effect by performing photoelectric conversion through the energy harvesting region 331 of the power generation module 330. Furthermore, the composite self-powered transparent display device 300 of this disclosure is arranged such that the first light-transmitting region 311 and the second light-transmitting region 321 overlap, and the peripheral region 312 and the non-light-transmitting region 322 overlap, so that the non-light-transmitting region 322, which is provided with multiple scan lines and multiple data lines, is kept away from the image screen displayed by the first light-transmitting region 311 and the second light-transmitting region 321, thereby effectively reducing the chance of moiré formation and further ensuring screen quality.

[0048] Please refer to Figures 9 and 10 together. Figure 9 is an exploded schematic diagram showing a composite self-powered transparent display device according to a second embodiment of the second embodiment of the present disclosure. Figure 10 is a top view showing the composite self-powered transparent display device of Figure 9. As shown in Figures 9 and 10, the composite self-powered transparent display device 400 includes a first light-transmitting display unit 410, a second light-transmitting display unit 420, and a power generation module 430. The second light-transmitting display unit 420 and the power generation module 430 are elements similar to the second light-transmitting display unit 320 and the power generation module 330 in Figure 7, respectively, so their detailed structure and function will not be described in detail.

[0049] The first light-transmitting display unit 410 may be a reflective light-emitting panel such as a ChLCD panel, and differs from Figure 7 in that it may have a TFT element because its driving method is active. The first light-transmitting display unit 410 includes a first light-transmitting region 411 and a peripheral region 412 provided so as to surround the first light-transmitting region 411. The first light-transmitting region 411 overlaps with the second light-transmitting region 421 of the second light-transmitting display unit 420 and overlaps with the energy harvesting region 431 of the power generation module 430. The peripheral region 412 overlaps with the non-light-transmitting region 422 of the second light-transmitting display unit 420. In detail, the peripheral region 412 may be another non-light-transmitting region, which may include a plurality of first scan lines and a plurality of first data lines, and the non-light-transmitting region 422 may include a plurality of second scan lines and a plurality of second data lines. The first scan line and first data line, which are opaque at the top, overlap with the second scan line and second data line, which are opaque at the bottom. The first light-transmitting region 411, the second light-transmitting region 421, and the energy harvesting region 431 overlap with each other. This maximizes the light-transmitting region and improves the aperture ratio of the light rays, thereby increasing the power generation efficiency of the power generation module 430. Furthermore, it avoids the formation of a moiré effect due to the spatial interference of stripes on the upper and lower panels.

[0050] In summary, this disclosure offers the following advantages: First, it combines the functions of active light emission and reflective light emission to realize two different display technologies, and can perform photoelectric conversion by a power generation module to provide a self-power generation effect. Second, the structural arrangement in which the first light-transmitting region overlaps with the second light-transmitting region maximizes the area through which light rays can pass, further increasing the power generation efficiency of the power generation module. Third, the arrangement in which the first light-transmitting region and the second light-transmitting region overlap, as well as the arrangement in which the non-transmitting region with scan lines and data lines overlaps with the surrounding region, effectively reduces the chance of moiré formation and further ensures screen quality.

[0051] While the embodiments described herein have been disclosed as described above, those skilled in the art can make various modifications and alterations, provided they do not deviate from the spirit and scope of the disclosure. Accordingly, the scope of protection of the disclosure shall be limited to the claims set forth below. [Explanation of Symbols]

[0052] 100, 200, 300, 400 Combined Self-Powered Transmissive Display Device 110, 210, 310, 410 First translucent display unit 111, 211, 311, 411 First light-transmitting region 112, 212, 322, 422 Non-transparent area 1121, 3221 First region 1122, 3222 Second region 120, 220, 320, 420 Second translucent display unit 121, 221, 321, 421 Second light-transmitting region 122, 222, 312, 412 surrounding areas 2221 Third Domain 2222 The fourth domain 130, 230, 330, 430 power generation modules 131, 231, 331, 431 Energy Harvesting Areas 1311 Power Generation Unit 1312 Conductive wire 140, 340 Energy Storage Units G1 Unit Pitch G2 wire pitch L Unit Length P Electrical energy R-ray

Claims

1. The first light-transmitting display unit includes a first light-transmitting region for light rays to enter, and a non-light-transmitting region that surrounds the first light-transmitting region, the non-light-transmitting region including a plurality of LED dies and a plurality of thin-film transistors (TFTs), A second light-transmitting display unit is provided stacked on the first light-transmitting display unit, comprising a second light-transmitting region overlapping with the first light-transmitting region, and a peripheral region surrounding the second light-transmitting region that overlaps with the non-light-transmitting region. A power generation module is provided stacked on the second light-transmitting display unit, Equipped with, The light rays pass through the first light-transmitting region and the second light-transmitting region in sequence and enter the power generation module, 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. The first light-transmitting display unit is a transparent micro-light-emitting diode (MicroLED) panel, the second light-transmitting display unit is a cholesteric liquid crystal display (ChLCD) panel, and the second light-transmitting region is a pixel region. A hybrid self-powered transparent display device.

2. The composite self-powered transparent display device according to claim 1, wherein the power generation module includes an energy harvesting region for converting light rays into electrical energy, and the energy harvesting region overlaps with the second light-transmitting region.

3. The total area of ​​the first light-transmitting region and the non-light-transmitting region is A １ The overlap 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% A composite self-powered transparent display device according to claim 1 that satisfies the following conditions.

4. The composite self-powered light-transmitting display device according to claim 1, wherein the first light-transmitting region includes a transparent plate material.

5. The composite self-powered transparent display device according to claim 1, wherein the non-transparent region includes a plurality of scan lines and a plurality of data lines, and the peripheral region includes a transparent material.

6. The composite self-powered transparent display device according to claim 1, wherein the non-transparent 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.

7. The composite self-powered transmission display device according to claim 1, wherein the power generation module is a silicon crystal solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.

8. The aforementioned power generation module is Multiple power generation units are arranged with intervals between them, each having a unit length and a unit pitch between them, They are arranged with a gap between them and are used to connect the multiple power generation units in series, with multiple conductive wires having a wire pitch between them, Includes, The composite self-powered transparent display device according to claim 1, wherein at least one of the unit length, unit pitch, and wire pitch is 1 centimeter or more.

9. The composite self-powered transparent display device according to claim 1, further comprising a power storage unit electrically connected to the first transparent display unit, the second transparent display unit, and the power generation module, for storing the electrical energy and providing the electrical energy to the first transparent display unit and the second transparent display unit.

10. A first light-transmitting display unit including a first light-transmitting region for light rays to enter, and a peripheral region provided so as to surround the first light-transmitting region, A second light-transmitting display unit is provided stacked on the first light-transmitting display unit, comprising a second light-transmitting region overlapping with the first light-transmitting region, and a non-light-transmitting region surrounding the second light-transmitting region and overlapping with the surrounding region, wherein the non-light-transmitting region includes a plurality of LED dies and a plurality of thin-film transistors (TFTs), A power generation module is provided stacked on the second light-transmitting display unit, Equipped with, The light rays pass through the first light-transmitting region and the second light-transmitting region in sequence and enter the power generation module, 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. The first light-transmitting display unit is a cholesteric liquid crystal display (ChLCD) panel, the first light-transmitting region is a pixel region, and the second light-transmitting display unit is a transparent micro light-emitting diode (MicroLED) panel. A hybrid self-powered transparent display device.

11. The composite self-powered light-transmitting display device according to claim 10, wherein the power generation module includes an energy harvesting region for converting light rays into electrical energy, and the energy harvesting region overlaps with the second light-transmitting region.

12. The total area of ​​the first light-transmitting region and the non-light-transmitting region is A １ The overlap 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% A composite self-powered transparent display device according to claim 10 that satisfies the following conditions.

13. The composite self-powered light-transmitting display device according to claim 10, wherein the second light-transmitting region includes a transparent plate material.

14. The composite self-powered transparent display device according to claim 10, wherein the peripheral region includes a transparent material, and the non-transparent region includes a plurality of scan lines and a plurality of data lines.

15. The composite self-powered transparent display device according to claim 10, wherein the peripheral region includes a plurality of first scan lines and a plurality of first data lines, and the non-transparent region includes a plurality of second scan lines and a plurality of second data lines.

16. The composite self-powered transmission display device according to claim 10, wherein the power generation module is a silicon crystal solar cell, a thin-film solar cell, an organic solar cell, a perovskite solar cell, or a dye-sensitized solar cell.

17. The aforementioned power generation module is Multiple power generation units are arranged with intervals between them, each having a unit length and a unit pitch between them, They are arranged with a gap between them and are used to connect the multiple power generation units in series, with multiple conductive wires having a wire pitch between them, Includes, The composite self-powered transparent display device according to claim 10, wherein at least one of the unit length, unit pitch, and conductor pitch is 1 centimeter or more.

18. The composite self-powered transparent display device according to claim 10, further comprising a power storage unit electrically connected to the first transparent display unit, the second transparent display unit, and the power generation module, for storing the electrical energy and providing the electrical energy to the first transparent display unit and the second transparent display unit.

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