CN104033826B - Flexible light collection module and display - Google Patents

Abstract

A flexible light collecting module and a display are provided, the flexible light collecting module includes a flexible light guide plate, an internal light source or a photocell. The surface of the flexible light guide plate is provided with a first area, a second area and a gathering area, and the second area is provided with at least one optical microstructure. The internal light source is connected to the flexible light guide plate and used for emitting light beams, and the photocell is adjacent to the gathering area. Therefore, light beams emitted by an external light source can firstly penetrate through the first area or the second area, are refracted or reflected by the optical microstructures to be gathered to the gathering area, and irradiate the gathering area to the photocell. In addition, the light beam emitted from the internal light source can be refracted or reflected to the surface of the flexible light guide plate by the optical microstructures to be emitted.

Description

Flexible light collection module and display

technical field

The invention relates to a light-collecting module, and in particular to a flexible light-collecting module.

Background technique

With the rapid development of science and technology and economy, the gradual depletion of fossil fuels and the emission of greenhouse gases have attracted increasing global attention. For example, the use of polluting energy such as oil, natural gas, and coal will lead to increasingly serious environmental damage. Moreover, these polluting energy sources are gradually facing shortages, and the stable supply of energy has become a major global issue. Therefore, non-polluting and renewable energy sources, such as water power, wind power, solar energy, biomass energy, etc., are receiving more and more attention.

Therefore, in recent years, people have continuously actively researched and developed technologies related to alternative energy and renewable energy, among which photoelectric conversion technology has attracted the most attention. For example, solar cells can directly convert light energy into electrical energy, and the power generation process will not be accompanied by the production of greenhouse effect gases and polluting gases such as carbon dioxide, nitrogen oxides, and sulfur oxides, and will not pollute the environment , can reduce human dependence on fossil fuels and provide a safe and independent source of electricity.

Contents of the invention

An embodiment of the present invention provides a flexible light collection module, which uses the optical microstructure of the flexible light guide plate to change the transmission path of the external light source beam penetrating the surface of the flexible light guide plate, and can also form a surface light source to Collects light from an external light source.

An embodiment of the present invention provides a flexible light-collecting module. The flexible light-collecting module includes a flexible light guide plate, an internal light source, and a photocell. The surface of the flexible light guide plate has a first area, a second area and a gathering area. The second area is opposite to the first area and has at least one optical microstructure, and the gathering area is adjacent to the first area or the second area. The internal light source is connected to the flexible light guide plate to emit light beams, and the photocell is adjacent to the gathering area. In this way, the light beam emitted by an external light source can first pass through the first area or the second area, and be refracted or reflected by the optical microstructure to gather in the gathering area and irradiate the photoelectric cell. In addition, the light beam emitted by the internal light source can be refracted or reflected by the optical microstructure to the surface of the flexible light guide plate and emitted.

In summary, the flexible light-collecting module provided by the embodiments of the present invention can irradiate the light beam of the external light source that penetrates the surface of the flexible light guide plate to the photocell in a concentrated manner, so as to be optically coupled to the photocell, and can guide the light emitted by the internal light source. The light beam is emitted from at least part of the surface of the flexible light guide plate to form a surface light source.

In order to enable a further understanding of the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and accompanying drawings are only used to illustrate the present invention, rather than to the scope of rights of the present invention make any restrictions.

Description of drawings

FIG. 1A is a schematic perspective view of a flexible light collection module according to an embodiment of the present invention.

FIG. 1B is a schematic side view of the flexible light-collecting module in FIG. 1A .

FIG. 2A is a partially enlarged side view of the flexible light-collecting module in FIG. 1A .

2B is a partially enlarged side view of a flexible light-collecting module according to another embodiment of the present invention.

FIG. 2C is a partially enlarged side view of a flexible light-collecting module according to another embodiment of the present invention.

FIG. 3A is a schematic perspective view of a flexible light collection module according to another embodiment of the present invention.

FIG. 3B is a schematic side view of the flexible light-collecting module in FIG. 3A .

FIG. 4A is a schematic perspective view of a flexible light collection module according to another embodiment of the present invention.

FIG. 4B is a schematic top view of the flexible light-collecting module in FIG. 4A .

Wherein, the reference signs are explained as follows:

100a, 100b, 100c flexible light collecting module

110 flexible flexible light guide plate

111 First area

112 Second area

113 gathering area

114, 114’, 114” optical microstructure

120 internal light source

130 photocells

140 reflective layer

150 battery modules

S surface

S1 upper surface

S2 lower panel

S3, S4, S5, S6 sides

S21 Central Torus

S22 peripheral annulus

S23 top surface

S24 Bottom

T top angle

detailed description

[First embodiment]

Please refer to FIG. 1A, FIG. 1B and FIG. 2A at the same time, wherein FIG. 1A is a perspective view of a flexible light-collecting module 100a according to an embodiment of the present invention, and FIG. 1B is a side view of the flexible light-collecting module 100a in FIG. 1A schematic diagram. The flexible light collection module 100 a includes a flexible light guide plate 110 , an internal light source 120 and a photocell 130 . The surface S of the flexible light guide plate 110 has a first area 111, a second area 112 facing the first area 111, and a gathering area 113, the gathering area 113 is adjacent to the first area 111 or the second area 112, and the second area 112 Has an optical microstructure 114 . Wherein, the internal light source 120 is connected to the flexible light guide plate 110 , and the photocell 130 is adjacent to the gathering area 113 . Each of the components will be described in detail below.

The flexible light guide plate 110 can transmit light and has flexibility. In the flexible light collection module 100a of this embodiment, the shape of the flexible light guide plate 110 is roughly a slender cuboid, and the thickness of the flexible light guide plate 110 is about 0.1 millimeter (mm, millimeter) to 50 millimeters. In other embodiments, the thickness of the flexible light guide plate 110 may be more than 50 mm. The upper surface S1 , the lower surface S2 opposite to the upper surface S1 , and the side surfaces S3 , S4 , S5 , S6 form the surface S of the flexible light guide plate 110 . In addition, in other embodiments, the shape of the flexible light guide plate 110 can also be a wedge, a triangular pyramid, or an irregular shape, and those with ordinary knowledge in the technical field can design it according to actual usage requirements. Examples are not limited here.

The flexible light guide plate 110 can transmit light and is used to guide the transmission direction of the light beam. For example, the refractive index of the flexible light guide plate 110 can be significantly higher than the refractive index of the light transmission medium in the environment outside the flexible light guide plate 110, and the flexible light guide plate 110 can guide light beams in the flexible light guide plate 110 through total internal reflection. transmission inside the light panel 110 . In this embodiment, the refractive index of the flexible light guide plate 110 is, for example, 1.0 to 1.85. In addition, the material of the flexible light guide plate 110 may also include materials that are transparent to radiation of one or more wavelengths, so that the flexible light guide plate 110 can transmit light. For example, the flexible light guide plate 110 may be transparent to radiation of visible light wavelengths, and in other embodiments, the flexible light guide plate 110 may be transparent to radiation of infrared or ultraviolet wavelengths. In this embodiment, the flexible light guide plate 110 can be made of light-transmitting materials such as glass, plastic, electrochromic glass or smart glass, but the embodiment of the present invention is not limited thereto. In other embodiments, the flexible light guide plate 110 includes, for example, a flexible substrate, a plastic substrate, a reflective plate, an acrylic substrate, a polycarbonate (PC) substrate, a polyvinyl chloride (PVC) substrate, a polyethylene (PE) substrate, or Polypropylene (PP) substrate.

In addition, the flexible light guide plate 110 is flexible. For example, the flexible light guide plate 110 can be made of flexible materials including polyester, polycarbonate, ink, photocurable resin, or optical glue. Due to the flexibility of the flexible light guide plate 110, in detail, the flexible light guide plate 110 can be bent, folded, deformed by compression or curled, so users can use it according to different actual needs. When the flexible light-collecting module 100a is used, the flexible light-collecting module 100a is bent or deformed into different shapes. As shown in FIG. 1A , when the flexible light-collecting module 100a of this embodiment is in use, the flexible light guide plate 100 may be substantially S-shaped, but the embodiment of the present invention is not limited thereto.

The surface S of the flexible light guide plate 100 has a first area 111, a second area 112 and a gathering area 113, wherein the second area 112 faces the first area 111, and the gathering area 113 is adjacent to the first area 111 or the second area 112 . As shown in FIG. 1A, in the flexible light-collecting module 100a of this embodiment, the first area 111 is the end where the upper plate surface S1 is adjacent to the side S3, and the second area 112 is the end where the lower plate surface S2 is adjacent to the side S3. One end, and the gathering area 113 is the side S3. It is worth mentioning that the surface S of the flexible light guide plate 110 may also have one or more other first regions 111 , second regions 112 or gathering regions 113 . For example, in this embodiment, the surface S of the flexible light guide plate 110 also has a first region 111 , a second region 112 and a gathering region 113 .

As shown in FIG. 1A , the first area 111 is the end of the lower plate S2 adjacent to the side S4 , the second area 112 is the end of the upper plate S1 adjacent to the side S4 , and the gathering area 113 is the side S4 . It is worth mentioning that the position, shape and area of the first region 111, the second region 112 or the gathering region 113 are determined according to actual needs, and those with ordinary knowledge in the technical field can base on, for example, the shape of the flexible light guide plate 110 , flexible curvature, and refractive index are designed accordingly, so the embodiments of the present invention are not limited here.

In addition, the second region 112 has a plurality of parallel optical microstructures 114 , and the optical microstructures 114 are linear elongated ribs protruding toward the inside of the flexible light guide plate 110 . Please also refer to FIG. 2A . FIG. 2A is a partially enlarged side view of the flexible light-collecting module 100 a in FIG. 1A . As shown in FIG. 2A , the cross-sectional shapes of the optical microstructures 114 are all triangles with the same size, and the apex angle T of the optical microstructures 114 is, for example, 20 degrees to 160 degrees. The optical microstructures 114 are arranged parallel to each other, and the distances between two adjacent optical microstructures 114 are equal. In other embodiments, the optical microstructures 114 can be arranged in an ordered or random manner, and the cross-sectional shape of the optical microstructures 114 can also be trapezoidal, semicircular, wavy or other appropriate shapes, and the shape of the optical microstructures 114 can also be It may be a curved elongated convex rib, which is not limited in this embodiment of the present invention. Furthermore, the number, shape, size, and location of the optical microstructures 114 can be determined according to design requirements, and the plurality of optical microstructures 114 can also have different shapes or sizes. In other embodiments, the optical microstructure 114 can be a substantially circular convex hull. In addition, the plurality of second regions 112 can also have the same or different optical microstructures 114 .

It is worth noting that the plurality of optical microstructures 114 in the same second region 112 may be irregularly distributed in the second region 112 or periodically distributed in the second region 112 . In addition, the arrangement density of the plurality of optical microstructures 114 in the same second region 112 can be different according to the flexible curvature of the flexible light guide plate 110 , and those skilled in the art can design according to actual needs. For example, the greater the flexible curvature of the flexible light guide plate 110 in this embodiment, the greater the arrangement density of the optical microstructures 114, that is, the more optical microstructures 114 the second region 112 has; the flexible light guide plate 110 The smaller the flexible curvature of , the smaller the arrangement density of the optical microstructures 114 , that is, the fewer the optical microstructures 114 in the second region 112 . According to the difference of the flexible curvature of the flexible light guide plate 110 , the apex angle T of the optical microstructure 114 can vary within a range, such as 60°-140°, and preferably 120°.

In addition, in other embodiments, the second region 112 may have a plurality of optical microstructures 114 of different sizes. For example, when the flexible light collecting module 110a is in use, the flexible light guide plate 110 is bent into a certain shape, while the second region 112 has a certain curvature. Wherein, the greater the curvature of the second region 112 in the state of use, the larger the size of the optical microstructure 114, that is, the greater the vertical height from the optical microstructure 114 to the second region 112; The smaller the curvature, the smaller the size of the optical microstructure 114 , that is, the smaller the vertical height from the optical microstructure 114 to the second region 112 .

Furthermore, according to the different curvatures of the parts of the second region 112 in use, the optical microstructures 114 disposed on the parts of the second region 112 may also have different sizes or shapes. In detail, when the flexible light collecting module 110a in this embodiment is in use, the curvature of the end of the second region 112 adjacent to the collecting region 113 is relatively small, and the optical microstructure 114 disposed at the end of the second region 112 It has a small size; the curvature of the second region 112 relative to one end of the gathering region 113 is larger, and the optical microstructure 114 disposed at the end of the second region 112 has a larger size. However, the embodiments of the present invention are not limited here.

Please refer to FIG. 1A and FIG. 1B again, the internal light source 120 is connected to the flexible light guide plate 110 to emit light beams. In detail, in the flexible light collection module 100a of this embodiment, the internal light source 120 can be embedded in the flexible light guide plate 110, the internal light source 120 is a point light source, and contains (contains) LED elements. In other specific embodiments, the internal light source 120 may also be a line light source, a surface light source or other types of light source devices. In addition, the internal light source 120 may also include a laser diode element, a cold cathode fluorescent lamp (CCFL for short) or other types of light emitting elements, and the light beam emitted by the internal light source 120 may be direct light or indirect light through reflection. Those with ordinary knowledge in the technical field can design according to the actual usage requirements, so the embodiments of the present invention are not limited here.

The flexible light guide plate 110 can guide the light beam emitted by the internal light source 120 to exit from the first area 111 on the surface S of the flexible light guide plate 110 to form a surface light source. Specifically, the light beam emitted by the internal light source 120 is refracted or reflected to the second area 112 in the flexible light guide plate 110, and the optical microstructure 114 arranged in the second area 112 can change the transmission direction of the light beam, that is, the light beam can be The light is refracted or reflected by the optical microstructure 114 to the first area 111 of the flexible light guide plate 110 to be emitted to form a surface light source. In addition, in other embodiments, the light beam emitted by the internal light source 120 can be refracted or reflected by the optical microstructure 114 to other areas of the surface S of the flexible light guide plate 110 to be emitted, for example, it can be refracted or reflected to the second area 112 to be emitted. , to form a surface light source.

Furthermore, the light beam emitted by an external light source (not shown) can first pass through the first region 111 , and be refracted or reflected by the optical microstructure 114 to be concentrated to the focusing region 113 . The external light source is a light source provided in the environment outside the flexible light collection module 110a, such as a natural light source such as the sun or a light emitting device including a laser diode element. As shown in Figures 1A and 1B, in this embodiment, the solar beams outside the flexible light collecting module 110a can first pass through the first area 111, and then be refracted or reflected in the flexible light guide plate 110 to the second area 112. . The plurality of optical microstructures 114 disposed in the second area 112 can change the transmission direction of the solar beams, that is, the solar beams can be refracted or reflected by the optical microstructures 114 to be concentrated to the gathering area 113 . Furthermore, after the solar beams can first penetrate the first area 111, the plurality of optical microstructures 114 located in the second area 112 can be used to change the transmission path of the solar beams, so that the solar beams can be delivered to the concentrator at a smaller incident angle. The area 113 further improves the luminance efficiency of the gathering area 113 of the flexible light guide plate 110 .

A photovoltaic cell 130 is a device that converts light energy into energy in the form of, for example, electrical energy, and is adjacent to the concentration area 113 . In the flexible light-collecting module 110a of this embodiment, the photovoltaic cell 130 is a solar cell, such as a photochemical solar cell, a dye-sensitized solar cell, a polymer solar cell, or a nanocrystalline solar cell, and can be made of monocrystalline silicon, polycrystalline silicon, Cadmium Telluride (CadmiumTellurideCdTe), copper indium selenide (CopperIndiumSelenideCIS), copper indium gallium selenide (CopperIndiumGalliumSelenideCIGS), gallium arsenide (GalliumarsenideGaAs) and other semiconductor materials. In other embodiments, the photovoltaic cell 130 may include a plurality of stacked photoelectric conversion material layers. Specifically, the photovoltaic cell 130 includes, for example, a PN junction layer, an electron-hole junction layer, a silicon layer, a nanometer organic layer, or a multi-layer compound layer. The type of the photovoltaic cell 130 can be designed by those skilled in the art according to actual needs, so this embodiment is not limited here.

As shown in FIGS. 1A and 1B , in this embodiment, the photocell 130 is adjacent to the gathering area 113 on the surface S of the flexible light guide plate 110, and the light beam gathered to the gathering area 113 can be irradiated to the photocell 130 to be optically coupled to the photocell. 130. In this embodiment, the photocell 130 can be disposed around the flexible light guide plate 110 , while in other embodiments, the photocell 130 can be disposed on the surface S of the flexible light guide plate 110 . The location of the photovoltaic cell 130 can be designed by those skilled in the art according to actual needs, so the embodiment is not limited here. It is worth mentioning that the flexible light-collecting module 110 a of this embodiment may include two photocells 130 , and the two photocells 130 are respectively adjacent to two different collection regions 113 . In other embodiments, the flexible light-collecting module 110 a may further include one or more photocells 130 , and the other one or more photocells 130 are adjacent to the same collection area 113 .

The flexible light-collecting module 110 a may further include a reflective layer 140 disposed on the second region 112 . The reflective layer 140 is, for example, a metal deposition layer containing silver (Ag), aluminum (Al), gold (Au), copper (Cu), palladium (Pd), platinum (Pt), radium (Rd) or other high reflectivity materials , film or coating. When the external light beam passes through the first area 111 and is transmitted to the second area 112 , it can be reflected by the reflective layer 140 , so as to prevent the light beam from leaking out of the flexible light guide plate 110 from the second area 112 and improve the utilization efficiency of the light beam. As shown in FIGS. 1A and 1B , in this embodiment, the reflective layer 140 is an organic paint layer containing high reflectivity materials, and the reflective layer 140 itself is flexible. Therefore, when the flexible light-collecting module 110a is in use, for example, when the flexible light guide plate 110 is bent into a certain shape, the reflective layer 140 is not easy to peel off. In addition, the thickness of the reflective layer 140 is, for example, greater than 500 angstroms (A), and completely covers the second region 112 , but this embodiment of the present invention is not limited thereto. In other embodiments, the reflective layer 140 may only cover part of the second region 112 and have a pattern. For example, the reflective layer 140 may be formed by orderly distributing a plurality of dot-shaped metal films in the second region 112 .

In addition, in other embodiments, the flexible light-collecting module 110a can be configured to be suitable for a display. Specifically, the display includes a substrate, a display unit, and a flexible light-collecting module. The flexible light-collecting module 110a can be disposed on the substrate, and the flexible light-collecting module 110a can also be disposed on the top, bottom, sides, front, and/or internal structure of the display unit.

[Second Embodiment]

Please refer to FIG. 2B . FIG. 2B is a partially enlarged side view of a flexible light-collecting module according to an embodiment of the present invention. The structure of the flexible light-collecting module of this embodiment is substantially similar to that of the flexible light-collecting module 100a of the foregoing embodiments, and only the differences between the present embodiment and the foregoing embodiments will be described in detail below.

Specifically, the second region 112 has a plurality of parallel optical microstructures 114', and the optical microstructures 114' are elongated grooves. The optical microstructures 114' protrude outward from the flexible light guide plate 110, and the cross-sectional shapes of the optical microstructures 114' are all triangular and have the same size. In other embodiments, the cross-sectional shape of the optical microstructure 114' can also be trapezoidal, semicircular, wavy or other suitable shapes, and the shape of the optical microstructure 114' can also be a curved long cut groove. Examples are not limited. The rest of the structural details in FIG. 2B are as described in FIG. 1A to FIG. 1B , those skilled in the art should be able to easily deduce its implementation, so it is not necessary to repeat them here.

[Third embodiment]

Please refer to FIG. 2C . FIG. 2C is a partially enlarged side view of a flexible light-collecting module according to another embodiment of the present invention. The structure of the flexible light-collecting module of this embodiment is substantially similar to that of the flexible light-collecting module 100a of the foregoing embodiment, and only the differences between this embodiment and the foregoing embodiments will be described in detail below.

Specifically, the second region 112 has a plurality of parallel optical microstructures 114 ″, and the optical microstructures 114 ″ are printed pattern layers protruding toward the inside of the flexible light guide plate 110 . The pattern of the optical microstructure 114" is, for example, multiple groups parallel to each other, a matrix or an irregular shape formed by multiple parallel columns and rows, etc. The pattern or material of the optical microstructure 114" can be determined by those skilled in the art. The design is carried out according to actual usage requirements, so the embodiments of the present invention are not limited here. The rest of the structural details in FIG. 2C are as described in FIG. 1A to FIG. 1B , those skilled in the art should be able to easily deduce its implementation, so it is not necessary to repeat them here.

[Fourth Embodiment]

Please refer to FIG. 3A and FIG. 3B , FIG. 3A is a schematic perspective view of a flexible light collection module 100 b according to another embodiment of the present invention, and FIG. 3B is a schematic side view of the flexible light collection module 100 b in FIG. 3A . The structure of the flexible light-collecting module 100b of the present embodiment is substantially similar to that of the flexible light-collecting module 100a of the foregoing embodiments, and only the differences between the present embodiment and the foregoing embodiments will be described in detail below.

Specifically, as shown in FIG. 3A and FIG. 3B , in the flexible light-collecting module 100 b of this embodiment, the internal light source 120 can be disposed on the upper surface S1 of the flexible light guide plate 110 . The photocell 130 can be disposed on the gathering area 113 on the surface S of the flexible light guide plate 110 , and the photocell 130 can be coupled to the internal light source 120 , so that the power generated by the photocell 130 can be provided to the internal light source 120 . The flexible light-collecting module 100 b can further include a battery module 150 , and the battery module 150 can be coupled to the photocell 130 . The rest of the structural details in FIG. 3A and FIG. 3B are as described in FIG. 1A to FIG. 1B , those skilled in the art should be able to easily deduce their implementation, so it is not necessary to repeat them here.

In addition, in other embodiments, the flexible light-collecting module 100b may further include a power storage device and a switching switch. The power storage device is used to store the electric energy generated by the photovoltaic cell 130 , and the switching switch is coupled to the power storage device. When the electric energy stored in the electric storage device is lower than a predetermined value, the switching switch can be used to switch to use the electric energy of the electric storage device. Furthermore, the flexible light collecting module 100 b may further include a battery and a charging control circuit, and the battery is coupled to the internal light source 120 . When the electric energy of the battery is lower than a predetermined value, the switching switch can be used to switch to use the electric energy of the electric storage device. When the electric energy of the battery is lower than a predetermined value, the charging control circuit can be used to control the flexible light-collecting module 100b to charge the battery.

[Fifth Embodiment]

Please refer to FIG. 4A and FIG. 4B , FIG. 4A is a schematic perspective view of a flexible light collection module 100c according to another embodiment of the present invention, and FIG. 4B is a schematic top view of the flexible light collection module 100c in FIG. 4A . The structure of the flexible light-collecting module 100c of the present embodiment is substantially similar to that of the flexible light-collecting module 100a of the foregoing embodiments, and only the differences between the present embodiment and the foregoing embodiments will be described in detail below.

Specifically, as shown in FIG. 4A , in the flexible light-collecting module 100c of this embodiment, the flexible light guide plate 100 is approximately cylindrical in shape around the curl. The central annular surface S21 , the peripheral annular surface S22 , the top surface S23 and the bottom surface S24 form the surface S of the flexible light guide plate 100 . The first area 111 is a part of the peripheral annular surface S21 of the flexible light guide plate 110, the second area 112 is a part of the central annular surface S22 of the flexible light guide plate 110 facing the first area 111, and the gathering area 113 is adjacent to the first Part of the peripheral annulus S22 of the region 111 . The internal light source 120 is disposed on the central annular surface S21 , and the photocell 130 is embedded in the flexible light guide plate 110 and adjacent to the gathering area 113 .

The light beam emitted by the internal light source 120 penetrates the surface S of the flexible light guide plate 110, and is refracted or reflected in the flexible light guide plate 110 to the second area 112, and the optical microstructure 114 arranged in the second area 112 can change the light beam. The transmission direction, that is, the light beam can be refracted or reflected by the optical microstructure 114 to the first region 111 of the flexible light guide plate 110 to be emitted to form a surface light source.

Moreover, the solar beams outside the flexible light guide plate 110 can first pass through the first area 111, and then be refracted or reflected to the second area 112 in the flexible light guide plate 110, and the optical microstructures 114 disposed in the second area 112 The transmission direction of the solar beams can be changed, that is, the solar beams can be refracted or reflected by the optical microstructures 114 and delivered to the gathering area 113 at a smaller incident angle. As shown in Figures 4A and 4B, the photovoltaic cell 130 is embedded in the flexible light guide plate 110 and adjacent to the gathering area 113, so as to be arranged on the transmission path of the solar beam, and the solar beam whose transmission direction is changed by the optical microstructure 114 can be irradiated to The photocell 130 is optically coupled to the photocell 130 . The rest of the structural details in FIG. 4A and FIG. 4B are as described in FIG. 1A to FIG. 1B , those skilled in the art should be able to easily deduce their implementation, so it is not necessary to repeat them here.

[Possible efficacy of the embodiment]

According to the embodiment of the present invention, the above-mentioned flexible light-collecting modules 100a, 100b, 100c use the optical microstructures 114, 114', 114" to change the transmission path of the external light source beam penetrating the surface S of the flexible light guide plate 110 , and concentratedly irradiates to the photocell 130 to be optically coupled to the photocell 130. In this way, the flexible light collecting modules 100a, 100b, 100c of the embodiment of the present invention can increase the ratio of external light source beams irradiating to the photocell 130 to improve The use efficiency of the photovoltaic cell 130. In addition, the above-mentioned flexible light-collecting modules 100a, 100b, 100c utilize optical microstructures 114, 114', 114", which can guide the light beam emitted by the internal light source 120 from the surface of the flexible light guide plate 110 At least part of the area of S is emitted to form a surface light source.

The flexible light-collecting modules 100a, 100b, 100c of the embodiments of the present invention can be rolled, bent or folded, and arranged in a non-planar external environment in accordance with the external institutional environment. Furthermore, the shape of the flexible light guide plate 100 of the above-mentioned flexible light collecting modules 100a, 100b, 100c can be designed by those skilled in the art according to actual usage requirements, for example, it can be matched with a laptop or a tablet. The appearance of the computer is designed to be used as a protective case for a laptop or a tablet computer, and the photoelectric cell 130 is, for example, a solar cell. In this way, the above-mentioned flexible light-collecting modules 100a, 100b, 100c can use the photovoltaic cell 130 to provide power for a laptop computer or a tablet computer, or to recharge peripheral accessories of the computer.

The flexible light collecting modules 100a, 100b, 100c of the embodiment of the present invention can also be attached to clothing. For example, the above-mentioned flexible light-collecting modules 100a, 100b, 100c can increase the ratio of external light beams irradiating the photocell 130 to improve the efficiency of the photocell 130, and the photocell 130 is, for example, a photocell. And the power generated by the photocell 130 can be used to provide power for handheld devices (such as PDA, mp3 player, mobile phone, etc.). In another option, the power generated by the photovoltaic cell 130 can be provided to the internal light source 120, whereby the surface light source formed by the above-mentioned flexible light-collecting modules 100a, 100b, 100c can illuminate airline ground crews and policemen in the dark. , Firefighters and emergency workers wear vests and jackets to enhance visibility.

The above descriptions are only examples of the present invention, and are not intended to limit the scope of patent protection of the present invention. Anyone who is familiar with similar skills, without departing from the spirit and scope of the present invention, the equivalent replacements of changes and modifications are still within the scope of patent protection of the present invention.

Claims (21)

1. a bendable light-collecting module, it is characterised in that including:

Flexible light guide plate, its surface has:

First area；

Second area, is opposite in this first area, and this second area has at least one optical microstructures；And

Aggregation zone, is adjacent to this first area or this second area；

Internal light source, is connected to this flexible light guide plate, in order to send light beam；And

Light cell, is adjacent to this aggregation zone,

Wherein, the light beam that external light source sends can first penetrate this first area or this second area, reflected by this optical microstructures or reflect to assemble to this aggregation zone, and expose to this light cell, and the light beam that this internal light source sends can be reflected by this optical microstructures or reflex to the surface of this flexible light guide plate and penetrate；

Wherein, this light cell is arranged in this flexible light guide plate, and this light cell is coupled to this internal light source.

2. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate be shaped as wedge shape.

3. bendable light-collecting module as claimed in claim 1, it is characterised in that the refractive index of this flexible light guide plate is 1.0 to 1.85.

4. bendable light-collecting module as claimed in claim 1, it is characterised in that the light beam that this internal light source sends is reflected or reflexes to this first area or this second area by this optical microstructures and penetrates.

5. bendable light-collecting module as claimed in claim 1, it is characterised in that this optical microstructures is convex closure, fin, dissected valley or printed patterns.

6. bendable light-collecting module as claimed in claim 1, it is characterised in that the section of this optical microstructures is triangle, trapezoidal, semicircle or wave-like.

7. bendable light-collecting module as claimed in claim 1, it is characterised in that this bendable light-collecting module includes this optical microstructures multiple, wherein those optical microstructures are for being distributed in this second area brokenly or being distributed in this second area periodically.

8. bendable light-collecting module as claimed in claim 1, it is characterised in that this bendable light-collecting module also includes reflecting layer, and this reflecting layer is arranged on this second area.

9. bendable light-collecting module as claimed in claim 1, it is characterised in that this bendable light-collecting module also includes battery module, and this battery module is coupled to this light cell.

10. bendable light-collecting module as claimed in claim 1, it is characterised in that this light cell comprises the photoelectric conversion material layer of multiple storehouse.

11. bendable light-collecting module as claimed in claim 1, it is characterised in that this light cell comprises PN junction layer, electronics electricity hole junction layer, silicon layer, nanometer organic layer or multilayer compound nitride layer.

12. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate comprises flexible base board.

13. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate comprises plastic base.

14. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate comprises reflecting plate.

15. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate comprises acryl substrate.

16. bendable light-collecting module as claimed in claim 1, it is characterised in that this flexible light guide plate comprises polycarbonate substrate, polyvinyl chloride substrate, polyethylene substrate or polypropylene substrate.

17. bendable light-collecting module as claimed in claim 1, it is characterized in that, this bendable light-collecting module also includes electric storage device and switching switch, this electric storage device is coupled to this light cell, in order to store electric energy produced by this light cell, and this switching switch is coupled to this electric storage device, wherein when the electric energy stored by this electric storage device is lower than predetermined value, this switching switchs in order to switch over to use the electric energy of this electric storage device.

18. bendable light-collecting module as claimed in claim 17, it is characterized in that, this bendable light-collecting module also includes battery, and this battery is coupled to this internal light source, wherein when the electric energy of this battery is lower than predetermined value, this switching switchs in order to switch over to use the electric energy of this electric storage device.

19. bendable light-collecting module as claimed in claim 18, it is characterized in that, this bendable light-collecting module also includes charging control circuit, and when the electric energy of this battery is lower than predetermined value, this battery is charged by this charging control circuit in order to control this bendable light-collecting module.

20. a display, it is characterised in that including:

Substrate；

Display unit；And

Bendable light-collecting module, this bendable light-collecting module is arranged on this substrate, the top of this display unit, lower section, both sides, front and or internal structure, this bendable light-collecting module includes:

Flexible light guide plate, its surface has first area, is opposite in second area and the aggregation zone of this first area, and this second area has at least one optical microstructures, and this aggregation zone is adjacent to this first area or this second area；

Internal light source, is connected to this flexible light guide plate, in order to send light beam；And

Light cell, is adjacent to this aggregation zone,

Wherein, this light cell is arranged in this flexible light guide plate, and this light cell is coupled to this internal light source.

21. display as claimed in claim 20, it is characterized in that, the light beam that external light source sends can first penetrate this first area or this second area, reflected by this optical microstructures or reflect to assemble to this aggregation zone, and expose to this light cell, and the light beam that this internal light source sends can be reflected by this optical microstructures or reflex to the surface of this flexible light guide plate and penetrate.