WO2016123918A1 - 背光模组、其制作方法、显示装置 - Google Patents
背光模组、其制作方法、显示装置 Download PDFInfo
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- WO2016123918A1 WO2016123918A1 PCT/CN2015/084550 CN2015084550W WO2016123918A1 WO 2016123918 A1 WO2016123918 A1 WO 2016123918A1 CN 2015084550 W CN2015084550 W CN 2015084550W WO 2016123918 A1 WO2016123918 A1 WO 2016123918A1
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- WIPO (PCT)
- Prior art keywords
- power generating
- electrode
- backlight module
- generating unit
- light
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/023—Power supplies in a casing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
Definitions
- Embodiments of the present invention relate to a backlight module, a method of fabricating the same, and a display device.
- a television mainly provides an electrical signal through an external power source.
- a mobile phone itself includes a battery for storing electric energy, but the battery must be charged by an external power source before use, and when the battery is exhausted, it must be charged by an external power source to continue use.
- the related display device must rely on an external power supply device to realize the display, especially for a mobile display device such as a mobile phone, which brings problems such as inconvenient use.
- An embodiment of the present invention provides a backlight module, including a light emitting unit and a power generating unit that supplies power to the light emitting unit.
- the backlight module has a light emitting surface, and the power generating unit and the light emitting surface face each other.
- the light emitted by the light-emitting unit enters between the at least one power generating unit and the light-emitting surface and emits the backlight module from the light-emitting surface, and the power generating unit is away from the light-emitting surface
- a first electrode, a power generating layer, and a second electrode are included, the first electrode configured to reflect light from the light emitting unit.
- the embodiment of the present invention provides a method for fabricating a backlight module, comprising: a light emitting unit and a power generating unit for supplying power to the light emitting unit; wherein the backlight module has a light emitting surface, and the power generating unit and the light emitting surface are mutually connected to each other Facing and spaced apart, the light emitted by the light-emitting unit enters between the power generating unit and the light-emitting surface, and the backlight module is emitted from the light-emitting surface, and the power generating unit is away from the light-emitting surface.
- the upper electrode includes a first electrode, a power generation layer, and a second electrode, the first electrode configured to reflect light from the light emitting unit.
- Embodiments of the present invention provide a display device including a display panel and the backlight module.
- 1 is a schematic diagram of a related direct type backlight module
- FIG. 2 is a schematic diagram of a related side-entry backlight module
- FIG. 3 is a schematic diagram of a backlight module according to an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of another backlight module according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of another backlight module according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a power generating unit according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of another power generating unit according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of another power generating unit according to an embodiment of the present invention.
- Embodiments of the present invention provide a backlight module, a manufacturing method thereof, and a display device.
- the backlight module includes a power generating unit that collects generated electric energy and applies it to display.
- the reflective layer of the backlight module and the first electrode of the power generating unit may be the same film layer, which is also advantageous for integration and thinning of the backlight module.
- the liquid crystal display does not emit light by itself, and is generally realized by a backlight module.
- a backlight module provided by the embodiment of the present invention, the type and basic structure of the related backlight module are first introduced.
- the backlight module is divided into a side-in backlight module and a direct-lit backlight module according to different positions of the light-emitting units in the LCD.
- the light-emitting unit of the side-lit backlight module is disposed on the side of the LCD display, and the light-emitting unit of the direct-lit backlight module is disposed below the LCD display.
- the direct type backlight module and the side-in type backlight module shown in FIG. 1 and 2 the light emitted by the light emitting unit converts the point light source or the line light source into a surface light source through the light guide plate to enter the LCD display screen.
- FIG. 1 is a schematic structural diagram of a related direct type backlight module, including a plurality of light emitting units. 11.
- the light guide plate 13 is not essential, that is, the direct type backlight module shown in FIG. 1 may not include the light guide plate 13.
- FIG. 2 it is a schematic structural diagram of a related side-lit backlight module, including a plurality of light emitting units 11 , a reflective sheet 12 , a light guide plate 13 , and an optical film 14 .
- the light emitting unit 11 is located on the side of the light guide plate 13 , and the light emitted by the light emitting unit 11 is reflected from the side surface and reflected by the reflective sheet 12 into the light guide plate 13 .
- the optical film generally includes a diffusion sheet, a prism sheet, and the like.
- the light emitted by the light-emitting unit is reflected by the reflective plate to the upper surface of the light guide plate, converted into planar light by the light guide plate, and then emitted by the diffusion plate and the diffusion and mixing of the prism sheet.
- the backlight module in the embodiment of the present invention may be the above-mentioned direct type backlight module, or may be a side-in type backlight module, and the embodiment of the present invention and the drawings do not improve other structures of the backlight module, only Some of the structures related to the inventive aspects of the embodiments of the present invention are exemplified.
- the embodiment of the present invention provides a backlight module, as shown in FIG. 3, including a power generating unit 11, a light guide plate 13, and at least one power generating unit 20.
- the backlight module includes a power generating unit 20 as an example, and the power generating unit is used.
- 20 includes a first electrode 21, a second electrode 22, and a power generation layer 23 between the first electrode 21 and the second electrode 22, wherein the first electrode 21 and the second electrode 22 are outputs of the power generating unit 20.
- the power generating unit 20 is for supplying an electric signal to the light emitting unit 11. That is, the backlight module can drive the illumination unit to emit light without an external power supply.
- the backlight module has a light emitting surface S, and the power generating unit 20 is disposed on a side of the light emitting surface S of the light guiding plate 13 , and the first electrode 21 of the at least one power generating unit is in direct contact with the light guiding plate 13 , wherein the first electrode 21 has a light reflecting property, and a side of the first electrode 21 facing the light guide plate is a reflecting surface.
- the backlight module of FIG. 3 includes only one power generating unit 20, that is, the first electrode 21 of the power generating unit 20 is in direct contact with the light guide plate 13.
- the backlight module may include a plurality of power generating units, and any one of the plurality of power generating units may be the power generating unit 20 as shown in FIG. 3, and the first electrode 21 is in direct contact with the light guide plate 13.
- the first electrodes of each of the plurality of power generating units may be in direct contact with the light guide plate 13.
- the power generating unit 20 may be a friction power generating unit.
- the power generation layer may be a polymer insulation layer.
- the principle of frictional power generation is that the first electrode is rubbed with the polymer insulating layer, and the polymer insulating layer forms an induced electric field with the first electrode and the second electrode, respectively, thereby generating a voltage or a current. At this time, the first electrode and the second electrode are respectively collected. Negative charge and positive charge, first electrode and second electrode as hair
- the output of the electrical unit may be a positive and negative charge drawn through the wire to power the lighting unit or the display panel.
- Embodiments of the present invention provide a backlight module including at least one power generating unit, which can be self-generated to be applied to a backlight module or a display device including the backlight module.
- the first electrode of the power generating unit is in direct contact with the light guide plate. Since the first electrode is reflective, the side of the first electrode facing the light guide plate is a reflective surface, that is, the first electrode is used as a reflective layer of the light guide plate, that is, the power generation unit.
- the first electrode and the reflective layer of the light guide plate are the same layer of film, and it is not necessary to form a reflective sheet on the light guide plate, which can not only reduce the manufacturing process steps, reduce the film material, reduce the production cost, but also facilitate the integration of the backlight module. Light and thin.
- the first electrode of the power generating unit may be in direct contact with the light guide plate, and the first electrode 21 of the power generating unit 20 and the light guide plate 13 may be directly bonded to each other to form a backlight module as shown in FIG. 3 .
- the direct contact of the first electrode with the light guide plate may be: the first electrode is deposited on the light guide plate. That is, the light guide plate is used as a base substrate of the power generating unit, and the first electrode, the power generation layer, and the second electrode are sequentially deposited on the light guide plate.
- the first electrode is deposited on the light guide plate, the first electrode and the light guide plate are not easily detached, and the power generating device is integrated with the light guide plate.
- the light guide plate may be glass, polymethyl methacrylate (PMMA, Polymethyl Methacrylate), polyimide (PI, Polyimide), or the like.
- the first electrode has a light reflectivity, and the first electrode may be a metal electrode or other electrode having a reflective property.
- the first electrode is a metal electrode such as Al, Ag or Cu as an example for detailed description.
- the power generating unit further includes a protective layer, and the first electrode and the second electrode are covered by the protective layer on the side facing the power generating layer.
- the material forming the protective layer may be Mo or ITO (Indium tin oxide).
- the first electrode and the second electrode are covered by the protective layer, and the first electrode and the second electrode may be directly coated and deposited on the protective layer without exposure.
- the reflective sheet in the related backlight module is generally a polymer material layer having a separate reflection function
- the first electrode is used as a reflective layer of the light guide plate, that is, the power generation unit
- the one electrode and the reflective layer of the light guide plate are the same layer of the film, and it is not necessary to form a reflective layer on the light guide plate, so that the power generation unit and the backlight module are integrated, light and thin.
- a surface of the first electrode facing the light-emitting layer, a surface of the second electrode facing the light-emitting layer, At least one of the surface of the light-emitting layer facing the first electrode side and the surface of the light-emitting layer facing the second electrode has an uneven structure.
- the surface of the first electrode 21 and the second electrode 22 on the side facing the power generation layer 23 is an uneven structure.
- 7 shows that the surface of the first electrode 21 and the second electrode 22 facing the power generation layer 23 has a concave-convex structure, and the surface of the power generation layer facing the first electrode side and the surface of the power generation layer facing the second electrode are both uneven structures.
- the concave-convex structure in FIG. 6 and FIG. 7 includes a triangular structure, and of course, any other irregular concave-convex structure, etc., which is not specifically limited in the embodiment of the present invention.
- At least one surface is a concave-convex structure, which increases the relative surface area of the first electrode 21, the second electrode 22 and the power generation layer 23, thereby enabling the first electrode and the second electrode to contact the power generation layer better. More charge is induced at the first electrode and the second electrode.
- an elastic member is disposed between the first electrode 21 and the second electrode 22.
- the elastic member can be used not only as the elastic support of the first electrode 21 and the second electrode 22, so that a squeeze-separated vibration state is generated between the first electrode, the second electrode and the power generation layer to form a voltage pulse, and when an external force acts on the first An electrode, the first electrode is compressed by the extrusion spring, and the power generation layer forms a friction interface with the first electrode; when the external force disappears, the spring returns to elastic deformation, the first electrode is separated from the power generation layer, and the friction power generation unit quickly returns to the original state. It can also act as a buffer when the display is impacted by an external force to further enhance the drop resistance of the display including the backlight module of the embodiment of the present invention.
- the elastic member 24 is located at the edge position of the first electrode 21 and the second electrode 22, so that the contact friction between the first electrode and the second electrode and the power generation layer is not affected.
- the elastic member is a resin material or a rubber material.
- the elastic member in the embodiment of the present invention may be an elastic resin material such as a PR glue.
- the composition and mass fraction of the PR glue can be: solvent (ether, ester, etc.) accounted for 90%, monomer (Acrylates) and polymers accounted for 7%, dispersants accounted for 2%, and initiators accounted for 1%. It should be noted that the mass fraction of the components of the above-mentioned PR glue can also be adjusted as needed, and the embodiment of the present invention is described by way of example only.
- the elastic material is made of high-elastic PR glue, and the content of the monomer can be adjusted to improve the elastic modulus of the elastic member, so that the elastic member can be pressed down by 10-15%, and the rebound amount is greater than 95%.
- a particulate matter is doped in the resin material, wherein the particle diameter of the particulate matter is not more than 100 ⁇ m.
- the high-elasticity PR glue is doped with acrylic particles or inorganic filler particles to further increase the toughness of the PR glue, so that the elastic member undergoes shear yielding under pressure, absorbs a large amount of plastic deformation energy, and promotes brittle-ductile transformation of the elastic member. .
- the inorganic filler particles may be CaCO 3 having a particle diameter of 1 to 11 ⁇ m, or an ultrafine ceramic having a particle diameter of 0.09 ⁇ m, or a silicon sphere having a particle diameter of 3 to 10 ⁇ m and any combination thereof.
- the rubber material may be, for example, polystyrene, polybutadiene or polyisoprene or the like.
- the backlight module includes a plurality of power generating units, and at least two power generating units 20 are stacked.
- the backlight module includes three power generating units, that is, a first power generating unit, a second power generating unit, and a third power generating unit, wherein the first electrode of the first power generating unit and the second power generating unit and the light guide plate Direct contact, and a third power generating unit is additionally stacked on the first power generating unit or the second power generating unit.
- the backlight module includes two power generating units as an example, and two power generating units are stacked, and the first electrode 21 of one power generating unit 20 is in direct contact with the light guide plate 13.
- a weight layer 15 is formed between two adjacent power generating units 20 stacked.
- the weight layer may be an insulating layer depending on the use of the power generating unit.
- the output ends of the first electrode and the second electrode of the two power generating units may be electrically connected by external components to realize series or parallel connection of the two power generating units.
- the weight layer is an insulating layer, which not only can reduce the electrostatic adsorption force between the two electrodes after collecting the electric charge, avoiding the power generation effect, and can also enhance the friction effect between the electrodes on both sides of the weight layer and the power generation layer.
- the second electrode of one power generating unit When there is no weight layer, the second electrode of one power generating unit is directly in electrical contact with the first electrode of the other power generating unit, and the thicknesses of the first electrode and the second electrode are adjusted, and the shared electrode serves as a weight.
- the role of the layer at the same time to achieve the series connection of two power generation units.
- the backlight module provided by the embodiment of the present invention may further include: a voltage stabilizing circuit 16 electrically connected to the power generating unit 20, and the power generating unit 20 inputs an electrical signal to the voltage stabilizing circuit 16. Since the electrical signal output by the power generating unit 20 is generally a pulse signal, a stable electrical signal can be output through the voltage stabilizing circuit 16.
- the backlight module provided by the embodiment of the present invention further includes: an electrical energy storage device 17 electrically connected to the power generating unit 20, configured to store the electrical energy output by the power generating unit 20, so as to be required to the backlight module.
- the display panel provides an electrical signal.
- the electrical signal output by the power generating unit 20 may be stored in the power storage unit 17 after being passed through the voltage stabilizing circuit 16.
- Embodiments of the present invention provide a method for fabricating a backlight module, including:
- Step 101 Providing a light guide plate.
- Each optical film or the like can be formed on the light guide plate.
- the embodiment of the present invention is described by using only the light guide plate associated with the power generating unit.
- Other structures of the backlight module can be made by referring to the related art, which is not specifically described in the embodiment of the present invention.
- Step 102 Providing at least one power generating unit, wherein the power generating unit includes: forming a first electrode, a second electrode, and a power generating layer between the first electrode and the second electrode; wherein the first electrode of the power generating unit is directly connected to the light guide plate In contact, the first electrode is reflective and serves as a reflective layer of the light guide plate.
- the method comprises: depositing a conductive film on the light guide plate to form a first electrode.
- the light guide plate may be glass, PMMA, PI, or the like.
- a metal layer having a high reflectance such as Al, Ag or Cu may be deposited on the light guide plate, and the thickness is generally 1000-4000 angstroms.
- the backlight module formed by the above method has a small thickness, a small number of films, and can well integrate the light guide plate and the power generating unit, and the first electrode is deposited on the light guide plate, and the first electrode and the light guide plate are not easily peeled off.
- the power generation device is integrated with the light guide plate.
- the first electrode 21 of the power generating unit 20 may be brought into direct contact with the light guide plate 13 to form the power generating unit 20, and the first electrode 21 of the power generating unit 20 and the light guide plate 13 may be directly bonded.
- This method of formation is simple and easy to implement.
- a protective layer is formed on a side of the first electrode and the second electrode close to the power generation layer.
- the material forming the protective layer may be Mo or ITO.
- the first electrode and the second electrode are covered by the protective layer, which may be directly coated and deposited on the protective layer to cover the first electrode and the second electrode without exposure, and protection The layer prevents the metal electrode from being eroded by water oxygen in the air.
- the backlight module includes at least two power generating units, and forming at least two power generating units includes, for example:
- Step 201 Form a power generating unit.
- Step 202 forming a weight layer on the power generating unit.
- the weight layer may be an insulating layer depending on the use of the power generating unit.
- the output ends of the first electrode and the second electrode of the two power generating units may be electrically connected by external components to realize series or parallel connection of the two power generating units.
- the weight layer is an insulating layer, which not only can reduce the electrostatic adsorption force between the two electrodes after collecting the electric charge, avoiding the power generation effect, and can also enhance the friction effect between the electrodes on both sides of the weight layer and the power generation layer.
- the second electrode of one power generating unit When there is no weight layer, the second electrode of one power generating unit is directly in electrical contact with the first electrode of the other power generating unit, and the thickness of the first electrode and the second electrode is adjusted, and the shared electrode functions as a weight layer. At the same time, the series connection of two power generating units is realized.
- Step 203 forming another power generating unit on the weight layer.
- the above steps 202 and 203 may be repeatedly performed to form two or more power generating units.
- forming three power generating units includes:
- Step 021 forming a first power generating unit.
- Step 022 forming a weight layer on the first power generating unit.
- Step 023 forming a second power generating unit on the weight layer.
- Step 024 forming a weight layer on the second power generating unit.
- Step 025 forming a third power generating unit on the weight layer.
- step of forming the power generating unit may refer to the description of step 102 above, and details are not described herein.
- the embodiment of the present invention provides a display device, including the backlight module and the display panel provided by any embodiment of the present invention.
- the display device is a liquid crystal display device.
- the display panel is a liquid crystal display panel.
- the TFT array substrate and the opposite substrate are opposed to each other to form a liquid crystal cell, and the liquid crystal cell is filled with a liquid crystal material.
- the opposite substrate is, for example, a color filter substrate.
- the pixel electrode of each pixel unit of the TFT array substrate is used to apply an electric field to control the degree of rotation of the liquid crystal material System to perform display operations.
- the power generating unit in the backlight module provided by the embodiment of the present invention can also provide an electrical signal to the display panel.
- a backlight module comprising: a light emitting unit and a power generating unit for supplying power to the light emitting unit; wherein the backlight module has a light emitting surface, and the power generating unit and the light emitting surface face each other and are spaced apart
- the light emitted by the light-emitting unit enters between the power generating unit and the light-emitting surface and emits the backlight module from the light-emitting surface
- the power generating unit includes a first electrode in a direction away from the light-emitting surface And a power generating layer and a second electrode, the first electrode configured to reflect light from the light emitting unit.
- the backlight module of (1) further comprising a light guide plate between the power generating unit and the light emitting surface, and the first electrode of the power generating unit is in direct contact with the light guide plate.
- the backlight module according to any one of (1) to (3) wherein the power generating unit is a friction power generating unit, and the power generating layer is a polymer insulating layer.
- the backlight module according to any one of (1) to (5), wherein the first electrode faces the side of the light-emitting layer, the surface of the second electrode faces the light-emitting layer, and emits light. At least one of the surface of the layer facing the first electrode side and the surface of the light emitting layer facing the second electrode has an uneven structure.
- the backlight module according to any one of (1) to (6), wherein an elastic member is disposed between the first electrode and the second electrode.
- the backlight module according to any one of (1) to (7), wherein the backlight module includes a plurality of the power generating units, wherein at least two of the power generating units are stacked.
- the backlight module according to any one of (1) to (9) wherein the first electrode is a metal electrode.
- the backlight module according to any one of (1) to (12) further comprising: a voltage stabilizing circuit electrically connected to the power generating unit, wherein the voltage stabilizing circuit powers the power generating unit The signal is regulated.
- the power generating unit includes a first electrode, a power generating layer and a second electrode in a direction away from the light emitting surface, wherein the first electrode is configured to reflect from the Light from the lighting unit.
- Another power generating unit is disposed on the weight layer.
- a display device comprising a display panel and the backlight module according to any one of (1) to (14).
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Abstract
Description
Claims (18)
- 一种背光模组,包括发光单元和对该发光单元供电的发电单元;其中,所述背光模组具有一出光面,所述发电单元与所述出光面彼此面对且间隔开,所述发光单元发出的光线进入所述发电单元与所述出光面之间并从所述出光面射出所述背光模组,所述发电单元在远离所述出光面的方向上包括第一电极、发电层和第二电极,所述第一电极构造为反射来自所述发光单元的光线。
- 根据权利要求1所述的背光模组,还包括位于所述发电单元与所述出光面之间的导光板,且所述发电单元的第一电极与所述导光板直接接触。
- 根据权利要求2所述的背光模组,其中,所述第一电极直接沉积在所述导光板上。
- 根据权利要求1至3中任一项所述的背光模组,其中,所述发电单元为摩擦发电单元,所述发电层为高分子绝缘层。
- 根据权利要求4所述的背光模组,其中,所述发电层为高分子绝缘层。
- 根据权利要求1至5中任一项所述的背光模组,其中,所述第一电极朝向发光层一侧的面、第二电极朝向发光层一侧的面、发光层朝向第一电极一侧的面以及发光层朝向第二电极一侧的面中,至少一个面具有凹凸结构。
- 根据权利要求1至6中任一项所述的背光模组,其中,所述第一电极和所述第二电极之间设置有弹性件。
- 根据权利要求1至7中任一项所述的背光模组,其中,所述背光模组包括多个所述发电单元,其中至少两个所述发电单元为层叠设置。
- 根据权利要求8所述的背光模组,其中,相邻的两个层叠设置的发电单元之间形成有配重层。
- 根据权利要求1至9中任一项所述的背光模组,其中,所述第一电极为金属电极。
- 根据权利要求1至10中任一项所述的背光模组,其中,所述发电单元还包括保护层,所述第一电极和所述第二电极在朝向所述发电层的一侧被所述保护层覆盖。
- 根据权利要求7所述的背光模组,其中,所述弹性件为树脂材料或橡胶材料。
- 根据权利要求1至12中任一项所述的背光模组,其中,还包括:与所述发电单元电连接的稳压电路,所述稳压电路对发电单元的电信号进行稳压处理。
- 根据权利要求1至13中任一项所述的背光模组,其中,还包括:与所述发电单元电连接的电能存储装置,用于存储发电单元输出的电能。
- 一种背光模组的制作方法,该背光模组具有一出光面,该方法包括以下步骤:提供发光单元;以及提供发电单元以对所述发光单元供电,其中,所述发电单元与所述出光面彼此面对且间隔开,使得所述发光单元发出的光线进入所述发电单元与所述出光面之间并从所述出光面射出所述背光模组,所述发电单元在远离所述出光面的方向上包括第一电极、发电层和第二电极,所述第一电极构造为反射来自所述发光单元的光线。
- 根据权利要求15所述的制作方法,还包括提供位于所述发电单元与所述出光面之间的导光板,其中提供发电单元的步骤包括:在所述导光板上沉积导电薄膜作为所述第一电极。
- 根据权利要求15或16所述的制作方法,其中,提供发电单元的步骤包括:提供一个发电单元;在所述发电单元上设置配重层;在所述配重层上设置另一个发电单元。
- 一种显示装置,包括显示面板以及权利要求1至14中任一项所述的背光模组。
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