CN114859601A - Reflection assembly, backlight module, display module and display device - Google Patents
Reflection assembly, backlight module, display module and display device Download PDFInfo
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- CN114859601A CN114859601A CN202210461588.5A CN202210461588A CN114859601A CN 114859601 A CN114859601 A CN 114859601A CN 202210461588 A CN202210461588 A CN 202210461588A CN 114859601 A CN114859601 A CN 114859601A
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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
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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
- G02F1/133605—Direct backlight including specially adapted reflectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a reflection assembly, backlight unit, display module and display device, this reflection assembly includes the bowl, be equipped with the plane of reflection of light on the bowl, the peripheral region of bowl centers on main body district and distributes, the peripheral region is including a plurality of marginal reflection units that encircle main body district and distribute, adjacent second reflection cup passes through connecting portion and connects among the marginal reflection unit, connecting portion back to a side surface of plane of reflection for having the plane of predetermineeing area S, marginal reflection unit is fixed in the supporter through the plane bonding, the plane has increased the bonding area of marginal reflection unit with the supporter, the joint strength of peripheral region and supporter has been strengthened, thereby the structural strength in peripheral region has been strengthened, the possibility of deformation of peripheral region under environment such as high temperature has been reduced, be favorable to the homogeneity of this reflection assembly reflection.
Description
Technical Field
The application relates to the technical field of backlight modules, in particular to a reflection assembly, a backlight module, a display module and a display device.
Background
The backlight module is a device for providing light source at the back of the liquid crystal display, and the luminous effect of the backlight module directly influences the visual effect of the liquid crystal display module. The liquid crystal itself does not emit light and it displays graphics or characters as a result of its modulation of the light produced by the backlight module.
In the prior art, a backlight module generally uses a reflective structure to reflect light emitted from a light source such as a light emitting diode to provide a light source. How to ensure the reflection of the reflection structure to be uniform and improve the uniformity of the light emission of the backlight module is a research direction in the industry.
Disclosure of Invention
In view of the above problems, the present application provides a reflection assembly, a backlight module, a display module and a display device, in which the reflection assembly can reduce the possibility of deformation and is beneficial to the uniformity of reflection.
In a first aspect, the present application provides a reflective assembly, which includes a reflective cover, the reflective cover includes a main body region and a peripheral region, the peripheral region surrounds the main body region, the main body region includes a plurality of main body reflective units distributed in an array, the peripheral region includes a plurality of edge reflective units distributed around the main body region, and the reflective cover includes a reflective surface for reflecting light; the main body reflection unit includes a first reflection cup; the edge reflection unit comprises second reflection cups and a connecting part connected between the adjacent second reflection cups, the surface of one side, back to the reflection surface, of the connecting part is a plane with a preset area S, and the edge reflection unit is fixedly bonded on the supporting body through the plane.
Through the structure, the edge reflection unit is fixed on the supporting body through plane bonding, the bonding area of the edge reflection unit and the supporting body is increased through the plane, and the connection strength of the peripheral area and the supporting body is enhanced, so that the structural strength of the peripheral area is enhanced, the possibility of deformation of the peripheral area under the environments of high temperature and the like is reduced, and the reflection uniformity of the reflection assembly is facilitated.
In some embodiments of the present disclosure, the first reflective cup includes a first reflective base and a first reflective wall connected to each other, the first reflective base and the first reflective wall enclose a first reflective space, a surface of the first reflective base and a surface of the first reflective wall facing the first reflective space form a first reflective surface, and a surface of the first reflective base facing the support body is adhesively fixed to the support body as a first adhesive surface having a preset area S1, so that the support body can support the first reflective cup through the first reflective base, which is beneficial for maintaining a structural stability of the reflector body region.
In some embodiments of the present disclosure, the second reflective cup includes a second reflective base and a second reflective wall connected to each other, the second reflective base and the second reflective wall enclose a second reflective space, a second reflective surface is formed on a surface of the second reflective base and a surface of the second reflective wall facing the second reflective space, and a surface of the second reflective base facing the support body is adhesively fixed to the support body as a second adhesive surface having a preset area S2, so that the support body can support the second reflective cup through the second reflective base, which is beneficial to maintaining a structural stability of the reflective cup peripheral area.
In some embodiments of the present application, the edge reflection unit and the support body have an adhesion area m1 ═ x × S + y × S2, and m1/y ≧ S1, where x is the number of the planes in the edge reflection unit, y is the number of the second reflection cups in the edge reflection unit,
through the technical scheme, the area which is uniformly distributed to each second reflection cup and is used for being bonded with the supporting body is larger than or equal to the area which is used for being bonded with the supporting body on each first reflection cup, the bonding strength between the edge reflection unit and the supporting body is larger than or equal to the bonding strength between the main body reflection unit and the supporting body, the connection strength between the peripheral area in the reflection cover and the supporting body is larger than or equal to the connection strength between the main body area, the possibility that the peripheral area is warped and the like under the environments of high temperature and the like can be effectively reduced, the reflection uniformity of the reflection assembly is facilitated, and the optical effect of the reflection assembly is improved.
In some embodiments of the present disclosure, a reflective assembly is provided, wherein the edge reflective unit includes first sub-units and second sub-units, the first sub-units are located at four corners of the reflective assembly, and the second sub-units are arranged in a row or a column between the two first sub-units; the projection area of the first subunit on the support body is twice as large as that of the second subunit on the support body, and the projection area of the second subunit on the support body is twice as large as that of the main body reflection unit on the support body.
In some embodiments of the present disclosure, the first sub-unit includes four second reflective cups distributed in an array, and a connection portion is connected between two adjacent second reflective cups; the second sub-unit includes two second reflection cups and a connection part connected between the two second reflection cups.
The arrangement mode is beneficial to arranging the first reflection cup and the second reflection cup in the reflection cover in a row or a column, and the structural arrangement of the reflection cover is convenient.
In the reflection assembly provided by some embodiments of the present application, a compensation reflection surface for reflecting light is disposed on a side surface of the connection portion facing the reflection surface, an area of the compensation reflection surface is a1, an area of the second reflection surface on the second reflection wall is a2, a1 is greater than or equal to a2/5, a reflection area of the compensation reflection surface in the connection portion is effectively increased, and a reflection effect of the connection portion is enhanced.
In some embodiments of the present application, an included angle between the compensation reflective surface and the second reflective surface on the second reflective substrate is B1, an included angle between the second reflective surface on the second reflective wall and the second reflective surface on the second reflective substrate is B2, and B1 is greater than or equal to 90 ° and less than or equal to B2 and less than or equal to 120 °, which is beneficial to increasing the bonding area between the second reflective substrate and the supporting body and improving the connection strength between the edge reflective unit and the supporting body.
In some embodiments of the present disclosure, a first reflective bottom is provided with a first mounting hole, and a light emitting device extends into the first reflective space through the first mounting hole; and a second mounting hole is formed in the second reflection bottom, and the light-emitting device extends into the second reflection space through the second mounting hole, so that the light-emitting device can be mounted in the first reflection space and the second reflection space.
In the reflection assembly provided in some embodiments of the present application, the reflection assembly further includes a frame surrounding the reflection cover, the frame is provided with a protrusion, the protrusion is configured to extend toward the reflection cover, the second reflection cup is pressed onto the support body by the protrusion, and the frame presses the edge of the second reflection cup onto the support body by the protrusion, so that deformation such as warping of the edge of the second reflection cup can be reduced.
In the reflection assembly that some embodiments of this application provided, still including the reflector plate that is used for the reflection of light, the reflector plate is connected in the side that the supporter was kept away from to the frame, and the reflector plate can compensate the light of the luminescent device of marginal reflection unit reflection, is favorable to improving this reflection of light assembly's reflection of light efficiency, makes the border reflection of light intensity of reflection of assembly unanimous with inside reflection of light intensity as far as possible, is favorable to improving the homogeneity that this reflection of assembly reflected light.
In the reflection assembly provided by some embodiments of the present application, the projection of the protrusion on the support body is separated from the projection of the second mounting hole on the support body, so that the protrusion can be prevented from blocking the second mounting hole, and the possibility of interference between the protrusion and the light emitting device in the second mounting hole is reduced.
In the reflection assembly provided in some embodiments of the present application, the main reflection unit is connected to an adjacent main reflection unit or edge reflection unit through the support portion, the reflection assembly further includes a support member connected to the support body, the support member forms a plurality of accommodation spaces, the main reflection unit and the edge reflection unit are both disposed in the accommodation spaces, and the support member is supported by the support portion.
Support piece has realized the support to the bowl, has strengthened the joint strength of bowl middle part region and supporter to strengthened the structural strength of bowl, reduced the bowl middle part region take place couch contract etc. under the environment such as high temperature the deformation's possibility, be favorable to improving the homogeneity that this reflection assembly reflects.
In some embodiments of the present disclosure, the supporting member includes a plurality of first supporting plates and a plurality of second supporting plates, and the first supporting plates and the second supporting plates are connected to each other to form an accommodating space.
In some embodiments of the present disclosure, the supporting portion has a slot, the slot is disposed corresponding to the first supporting plate and the second supporting plate, and the first supporting plate and the second supporting plate are inserted into the slot.
In a second aspect, the present application provides a backlight module, which includes a light emitting device, a supporting body and a reflective assembly provided by any of the above technical solutions, wherein the reflective cover and the light emitting device are both connected to the supporting body, and the light emitting device is disposed in the reflective cover.
In a third aspect, the present application provides a display module, which includes the backlight module provided by the foregoing technical solution.
In a third aspect, the present application provides a display device, which includes the display module provided in the foregoing technical solution.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
the application provides a reflection assembly, this reflection assembly includes the bowl, be equipped with the plane of reflection of light on the bowl, the peripheral region of bowl distributes around the main part district, the peripheral region is including a plurality of marginal reflection units that encircle the main part district and distribute, adjacent second reflection cup passes through connecting portion and connects in the marginal reflection unit, a side surface of connecting portion back to the plane of reflection is for having the plane of predetermineeing area S, marginal reflection unit is fixed in the supporter through the plane bonding, the plane has increased the bonding area of marginal reflection unit with the supporter, the joint strength of peripheral region with the supporter has been strengthened, thereby the structural strength in peripheral region has been strengthened, the possibility of the deformation of peripheral region under environments such as high temperature has been reduced, be favorable to the homogeneity that this reflection assembly reflects.
The application provides a backlight unit, this backlight unit includes illuminator, supporter and the reflection component that aforementioned technical scheme provided, and illuminator sets up in the bowl, and bowl and illuminator all connect in the supporter. Because the backlight module comprises the reflection assembly provided by the technical scheme, the light emitted by the backlight module has higher uniformity.
The application provides a display module assembly, because this display module assembly includes the backlight unit that aforementioned technical scheme provided, this display module assembly's display effect is comparatively even.
The application provides a display device, because this display device includes the display module assembly that aforementioned technical scheme provided, this display device's display effect is comparatively even, is favorable to improving user's use and experiences.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a top view of a reflective assembly provided in some embodiments of the present application;
FIG. 2 is a schematic diagram of a partial bowl according to some embodiments of the present disclosure;
FIG. 3 is a schematic structural diagram of a partially reflective assembly according to some embodiments of the present application;
FIG. 4 is a top view of a support provided by some embodiments of the present application;
fig. 5 is a schematic structural view of a support member and a frame according to some embodiments of the present disclosure after connection.
The reference numbers in the detailed description are as follows:
1. a reflector; 10. a support body; 12. a main body reflection unit; 121. a first reflector cup; 1211. a first reflective base; 12111. a first mounting hole; 1212. a first reflective wall; 1213. a first reflective space; 1214. a first reflective surface; 13. an edge reflection unit; 131. a second reflector cup; 1311. a second reflective base; 13111. a second mounting hole; 1312. a second reflective wall; 1313. a second reflective space; 1314. a second reflective surface; 14. a connecting portion; 141. compensating the reflecting surface; 20. a light emitting device; 2. a frame; 21. a protrusion; 3. a reflective sheet; 4. a support member; 41. an accommodating space; 42. a first support plate; 43. a second support plate; 5. a support portion; 51. and (4) a slot.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should be understood as having a common meaning as understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise specified.
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the embodiments of the present application and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present application.
Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The backlight module is one of the key components of the lcd panel, and can provide sufficient light sources with uniform brightness and distribution, so that the lcd panel can normally display images. With the continuous development of liquid crystal display technology, the application field of liquid crystal display devices is continuously widened. The backlight module provides a light source for the liquid crystal display device, mainly comprises a light emitting device, a reflection assembly and other structures, wherein the reflection assembly has higher reflectivity and is used for reflecting light rays emitted by the light emitting device.
In the related art, in order to obtain high light reflection efficiency and light reflection uniformity, the reflective structure is generally composed of a plurality of reflective cups fabricated from a material having excellent reflectivity. The inventor notices that in an application scene with large environmental temperature change such as high temperature, the temperature change of the reflecting structure can cause the structure to expand and contract, and the stress changes, so that the reflecting structure generates deformation such as couch contraction or peripheral warping, and the like, and the uniformity of the reflection of the reflecting structure can be reduced, and the optical effect of the reflecting structure is influenced.
To alleviate the problem of deformation of the reflective structure, the applicant has found that a support structure may be provided on the reflective structure to support the deformation of the reflective structure. The position that specifically for easily taking place to warp in reflection configuration adds the connecting portion that have a supporting role, and connecting portion connect and have increased the area of being connected of supporter and reflection configuration in the supporter for the supporter can carry out better support to reflection configuration, in order to alleviate reflection configuration's deformation, improves the homogeneity that reflection configuration reflected light.
Based on the above consideration, in order to solve the problems of uneven reflection of light, poor optical effect and the like caused by deformation of the reflection structure, the inventors have conducted extensive research and designed a reflection assembly, wherein a connection portion is additionally arranged in a peripheral region of a reflection cover forming the reflection assembly, the connection portion is fixedly bonded to a support body, so that the bonding area between the reflection assembly and the support body is increased, the connection strength between the peripheral region of the reflection cover and the support body is enhanced, the structural strength of the peripheral region is enhanced, the possibility of deformation of the peripheral region in environments of high temperature and the like is reduced, and the improvement of the uniformity of reflection of the reflection assembly is facilitated.
The reflection assembly disclosed in the embodiment of the application can be used for backlight modules but not limited to backlight modules, and can also be used for light-emitting equipment such as matrix car lamps, and thus, the uniformity of light emission of the light-emitting equipment is improved, and the optical effect of the light-emitting equipment is improved.
The technical solutions of the reflective assembly, the backlight module, the display module and the display device provided in the embodiments of the present application are further described below.
Some embodiments of the present application provide a reflective assembly, as shown in fig. 1, the reflective assembly includes a reflective cover 1, the reflective cover 1 includes a main body region and a peripheral region, the peripheral region is distributed around the main body region, the main body region includes a plurality of main body reflective units 12 distributed in an array, the peripheral region includes a plurality of edge reflective units 13 distributed around the main body region, the reflective cover 1 includes a reflective surface for reflecting light; the main body reflection unit 12 includes a first reflection cup 121; as shown in fig. 2 and 3, the edge reflection unit 13 includes second reflection cups 131 and connection portions 14 connected between adjacent second reflection cups 131, a surface of one side of the connection portion 14 facing away from the reflection surface is a plane having a predetermined area S, and the edge reflection unit 13 is fixed to the support body 10 by plane bonding.
The reflective cover 1 is a structural member for reflecting light in the reflective assembly, and includes a reflective surface thereon for reflecting light. In some embodiments of the present application, the reflection case 1 is made of a nano reflection plate formed of Polyethylene terephthalate (PET). The nano-reflecting plate is made of a PET (polyethylene terephthalate) base material by adopting a foaming process, and the PET base material is required to be subjected to a gas absorption process for 48 hours in a high-pressure gas tank. The obtained nanometer reflecting plate does not use harmful raw materials, has high smoothness on the surface, is white and opaque in color, has the thickness of 0.5mm, has the total reflectivity of 100.4 percent, the diffuse reflectivity of 94.7 percent and the specular reflectivity of 5.7 percent, and has good uniformity on the reflecting capacity of each wavelength of a light-emitting diode light source. The nanometer reflecting plate meets the combustion standard of foaming material UL94-HBF, and the nanometer reflecting plateTensile strength of 7.2MPa, tear strength of 1060N/cm, bending strength of 6.3MPa, and average linear expansion coefficient of 4.7 x 10 at 30-70 deg.C -5 ℃ -1 The nano-reflective plate can be subjected to secondary processing by cutting, stamping, bending, heating, and the like. Optionally, the thickness of the reflector 1 formed by secondary processing of the nano-reflective plate is 0.2mm, and a person skilled in the art can select the specific thickness of the reflector 1 according to actual conditions.
Both the main body region and the peripheral region are regions on the reflection housing 1, and the peripheral region surrounds the periphery arranged in the main body region. The plurality of main body reflection units 12 in the main body region are distributed in an array so as to facilitate the structure of the reflection housing 1 to be uniformly arranged, so that the main body region can uniformly reflect light emitted by the light emitting device 20, which is beneficial to improving the optical effect of the reflection housing 1. The first reflective cup 121 in the main body reflective unit 12 is formed by performing secondary processing on the nano reflective plate, in some embodiments, the secondary processing uses a hot-pressing plastic-forming process, and those skilled in the art can process the nano reflective plate into the first reflective cup 121 and form the main body reflective unit 12 by using an appropriate secondary processing process according to actual situations.
The connection part 14 refers to a structural member in the edge reflection unit 13, which is connected between the adjacent second reflection cups 131 in the edge reflection unit 13. The connecting portion 14 is provided with a plane for being fixedly bonded with the supporting body 10 on the surface of the side opposite to the reflecting surface, so that the bonding fixing area of the edge reflecting unit 13 and the supporting body 10 is increased, the connecting strength between the peripheral region of the reflecting cover 1 and the supporting body 10 is enhanced, the structural strength of the peripheral region is enhanced, the possibility that the peripheral region is warped and deformed under the environment of high temperature and the like is reduced, the reflecting uniformity of the reflecting assembly is facilitated, and the optical effect of the reflecting assembly is improved. The deformation of the reflecting assembly can be verified through a high-temperature reliability experiment by a person skilled in the art, the reflecting assembly subjected to the high-temperature reliability experiment is disassembled, and whether the deformation such as couch shrinkage, warping and the like occurs or not is observed; the brightness variation of the light reflected by the reflection housing 1 can also be tested by an optical detection device.
The connection portion 14 and the second reflective cup 131 in the edge reflective unit 13 are also formed by secondary processing of the nano reflective plate, in some embodiments, the secondary processing adopts a hot-pressing plastic-absorbing process, and those skilled in the art can use an appropriate secondary processing process to process the nano reflective plate into the connection portion 14 and the second reflective cup 131 and form the edge reflective unit 13 according to actual situations.
In some embodiments of the present application, the main body reflection unit 12 in the main body region and the edge reflection unit 13 in the peripheral region are integrally formed, so that the reflective cover 1 is an integral structure, which is not only beneficial to improving the overall structural strength of the reflective cover 1, but also beneficial to improving the manufacturing convenience of the reflective cover 1, and beneficial to improving the production efficiency.
In some embodiments of the present application, as shown in fig. 3, the first reflective cup 121 includes a first reflective bottom 1211 and a first reflective wall 1212, which are connected to each other, the first reflective bottom 1211 and the first reflective wall 1212 enclose a first reflective space 1213, a surface of the first reflective bottom 1211 and a surface of the first reflective wall 1212 facing the first reflective space 1213 form a first reflective surface 1214, and a surface of the first reflective bottom 1211 facing the supporting body 10 is adhesively fixed to the supporting body 10 as a first adhesive surface having a predetermined area S1.
The first reflective bottom 1211 and the first reflective wall 1212 refer to structures for forming the first reflective cup 121, which are connected to each other to form the cup-shaped first reflective cup 121 having an opening. The first reflecting space 1213 is a space in the first reflecting cup 121 capable of accommodating the light emitting device 20, and is surrounded by the first reflecting bottom 1211 and the first reflecting wall 1212, surfaces of the first reflecting bottom 1211 and the first reflecting wall 1212 facing the first reflecting space 1213 form a first reflecting surface 1214, and the first reflecting surface 1214 is a part of the reflecting surface for reflecting light emitted by the light emitting device 20.
The surface of the first reflective bottom 1211 facing the support body 10 is adhered and fixed to the support body 10 as a first adhesion surface, so that the support body 10 can support the first reflective cup 121 through the first reflective bottom 1211, which is beneficial to maintaining the structural stability of the main body region of the reflective cover 1.
In some embodiments of the present application, the first reflective bottom 1211 is provided with a first mounting hole 12111, and the light emitting device 20 protrudes into the first reflective space 1213 through the first mounting hole 12111, so that light emitted from the light emitting device 20 can be reflected by the first reflective surface 1214 in the first reflective space 1213. Alternatively, the light emitting device 20 is attached to the side of the support 10 close to the first reflector cup 121, so that when the first reflector cup 121 is attached to the support 10, the light reflecting device can extend into the first reflecting space 1213.
In some embodiments of the present application, the second reflective cup 131 includes a second reflective bottom 1311 and a second reflective wall 1312 connected to each other, the second reflective bottom 1311 and the second reflective wall 1312 enclose a second reflective space 1313, surfaces of the second reflective bottom 1311 and the second reflective wall 1312 facing the second reflective space 1313 form a second reflective surface 1314, and a surface of the second reflective bottom 1311 facing the support 10 is adhesively fixed to the support 10 as a second adhesive surface having a predetermined area S2.
The second reflecting bottom 1311 and the second reflecting wall 1312 refer to a structure for forming the second reflecting cup 131, which are connected to each other to form the second reflecting cup 131 having a cup shape with an opening. The second reflecting space 1313 is a space capable of accommodating the light emitting device 20 in the second reflecting cup 131, and is surrounded by a second reflecting bottom 1311 and a second reflecting wall 1312, surfaces of the second reflecting bottom 1311 and the second reflecting wall 1312 facing the second reflecting space 1313 form a second reflecting surface 1314, and the second reflecting surface 1314 is a part of the reflecting surface and is used for reflecting light emitted by the light emitting device 20.
The surface of the second reflecting base 1311 facing the support 10 is adhesively fixed to the support 10 as a second adhesive surface, so that the support 10 can support the second reflecting cup 131 through the second reflecting base 1311, which is beneficial to maintaining the structural stability of the peripheral area of the reflection housing 1.
In some embodiments of the present application, the second reflective substrate 1311 is provided with a second mounting hole 13111, and the light emitting device 20 protrudes into the second reflective space 1313 through the second mounting hole 13111, so that light emitted from the light emitting device 20 can be reflected by the second reflective surface 1314 in the second reflective space 1313. Alternatively, the light emitting device 20 is attached to the side of the support 10 near the second reflective cup 131, such that the light reflecting device can extend into the second reflective space 1313 when the second reflective cup 131 is attached to the support 10.
In some embodiments of the present application, the bonding area m1 of the edge reflection unit 13 and the support 10 is x × S + y S2, and m1/y is greater than or equal to S1, where x is the number of planes in the edge reflection unit 13 and y is the number of second reflection cups 131 in the edge reflection unit 13.
Through the technical scheme, the area which is uniformly distributed on each second reflection cup 131 and used for being bonded with the support body 10 is larger than or equal to the area which is used for being bonded with the support body 10 on each first reflection cup 121, the bonding strength between the edge reflection unit 13 and the support body 10 is larger than or equal to the bonding strength between the main body reflection unit 12 and the support body 10, the connection strength between the peripheral area in the reflection cover 1 and the support body 10 is larger than or equal to the connection strength between the main body area, the possibility that the peripheral area is warped and deformed under the environment of high temperature and the like can be effectively reduced, the uniformity of reflection of the reflection assembly is facilitated, and the optical effect of the reflection assembly is improved.
In some embodiments of the present application, the edge reflection unit 13 includes first sub-units located at four corners of the reflection assembly and second sub-units arranged in a row or a column between the two first sub-units; the projection area of the first subunit on the support 10 is twice as large as the projection area of the second subunit on the support 10, and the projection area of the second subunit on the support 10 is twice as large as the projection area of the main body reflection unit 12 on the support 10.
The first and second sub-units are each distributed along the periphery of the main body reflection unit 12 such that the main body reflection unit 12 is surrounded by the edge reflection unit 13. The first subunits are positioned at four top corners of the reflecting component, and the second subunits are arranged between the two first subunits in rows or columns, which means that the first subunits are arranged at the intersection of the intersected second subunit rows and the second subunit columns.
The projection area of the first subunit on the supporting body 10 is twice as large as the projection area of the second subunit on the supporting body 10, which means that the first subunit is formed by two adjacent second subunits, so that the edge reflection unit 13 is conveniently arranged on the periphery of the reflective cover 1.
In some embodiments of the present application, the main body reflection unit 12 includes a first reflection cup 121, and a projection area of the first reflection cup 121 on the support 10 is equal to a projection area of the second reflection cup 131 on the support 10; the projection area of the second sub-unit on the support 10 is twice of the projection area of the main body reflection unit 12 on the support 10, which means that the second sub-unit comprises two second reflection cups 131, and the two second reflection cups 131 are connected with the main body reflection unit 12 through a connection part 14, so that the two second reflection cups 131 form a second sub-unit whole; the projection area of the first sub-unit on the support body 10 is twice as large as the projection area of the second sub-unit on the support body 10, which means that the first sub-unit includes four second reflection cups 131 distributed in an array, and any two adjacent second reflection cups 131 are connected by the connection portion 14, so that the four second reflection cups 131 form a first sub-unit whole. The above arrangement is advantageous for arranging the first reflector cup 121 and the second reflector cup 131 in the reflector 1 in a row or a column, so as to facilitate the structural arrangement of the reflector 1.
In some embodiments of the present application, a compensation reflection surface 141 for reflecting light is disposed on a side surface of the connection portion 14 facing the reflection surface, an area of the compensation reflection surface 141 is a1, an area of the second reflection surface 1314 on the second reflection wall 1312 is a2, and a1 is greater than or equal to a 2/5.
The compensating reflective surface 141 is a structural surface of the connecting portion 14, faces the reflective surface and forms a part of the reflective surface, and is used for reflecting the light emitted by the light emitting device 20, so that the connecting portion 14 can reflect the light emitted by the light emitting device 20, which is beneficial to improving the reflective efficiency of the reflective cover 1. In some embodiments of the present application, by setting A1 ≧ A2/5, the reflection area of the compensation reflection surface 141 in the connection portion 14 is effectively increased, and the reflection effect of the connection portion 14 is enhanced.
In some embodiments of the present application, the angle between the compensating reflective surface 141 and the second reflective surface 1314 on the second reflective base 1311 is B1, the angle between the second reflective surface 1314 on the second reflective wall 1312 and the second reflective surface 1314 on the second reflective base 1311 is B2, and B1 is greater than or equal to 90 ° and less than or equal to 120 ° from B2.
Through the above arrangement, the included angle B1 between the compensation reflection surface 141 and the second reflection bottom 1311 is equal to the included angle B2 between the second reflection wall 1312 and the second reflection bottom 1311, and the light reflection angles of the connection portion 14 and the second reflection wall 1312 are the same, which is beneficial to improving the uniformity of light reflection of the reflection surface in the edge reflection unit 13. The angle ranges of B1 and B2 are 90-120 degrees, which is beneficial to increasing the bonding area of the second reflecting bottom 1311 and the supporting body 10 and improving the connection strength of the edge reflecting unit 13 and the supporting body 10.
In some embodiments of the present application, the reflective assembly further comprises a frame 2 surrounding the reflective cover 1, the frame 2 is provided with a protrusion 21, the protrusion 21 is configured to extend toward the reflective cover 1, and the protrusion 21 presses the second reflective cup 131 onto the support 10.
The frame 2 is a structure surrounding and connected to the outer edge of the reflection housing 1, and the frame 2 is connected to the support 10 to connect the outer edge of the reflection housing 1 with the frame 2. The protrusion 21 is a structure protruding from the frame 2 and extending toward the rim of the reflection cover 1, and the frame 2 can reduce deformation such as warping of the rim of the second reflection cup 131 by pressing the rim of the second reflection cup 131 against the support 10 by the protrusion 21. Optionally, the protrusion 21 is provided with a chamfer, so that the probability of scratching the protrusion 21 when the protrusion is matched with the reflector 1 can be reduced.
The protrusion 21 and the frame 2 may be made of at least one of PET material and polycarbonate material, or other materials with relatively high hardness, and the materials of the protrusion 21 and the frame 2 may be selected by those skilled in the art according to actual situations. The protrusion 21 and the frame 2 may be formed by 3D printing or by die forming, and a person skilled in the art may select the manufacturing method of the protrusion 21 and the frame 2 according to actual situations.
In some embodiments of the present application, the frame 2 is provided with the plurality of protrusions 21, and the plurality of protrusions 21 are uniformly disposed along the frame 2 at equal intervals, so that the acting force of the protrusions 21 on the second reflective cup 131 is uniformly distributed along the edge of the reflective cover 1, which is beneficial to preventing the edge of the reflective cover 1 from being deformed due to uneven distribution of the acting force. Alternatively, the projection shape of the protrusion 21 on the support body 10 may be at least one of an arc shape, a square shape or a trapezoid shape, and a person skilled in the art can select the projection shape according to actual situations.
Optionally, an opening is provided at the edge of the second reflective cup 131 close to the frame 2, the protrusion 21 of the frame 2 presses against the edge of the opening, and the opening is provided to facilitate the protrusion 21 to press against the edge of the second reflective cup 131. Alternatively, the number of the clips pressed on the opening of the second reflective cup 131 may be one, two or more, and those skilled in the art can select the number of the clips pressed on the opening of each second reflective cup 131 according to actual situations.
In some embodiments of the present application, the reflective assembly further comprises a reflective sheet 3 for reflecting light, and the reflective sheet 3 is attached to the side of the frame 2 away from the support body 10.
The reflector plate 3 is a sheet structure with excellent reflectivity, and is attached to the frame 2, and light emitted by the light emitting device 20 can be reflected by the reflector plate 3 when being irradiated to the reflector plate 3, so that the reflector plate 3 can compensate the light of the light emitting device 20 reflected by the edge reflection unit 13, the reflection efficiency of the reflection assembly is favorably improved, the edge reflection intensity of the reflection assembly is consistent with the inner reflection intensity as much as possible, and the reflection uniformity of the reflection assembly is favorably improved.
In some embodiments of the present application, the projection of the protrusion 21 on the support body 10 is separated from the projection of the second mounting hole 13111 on the support body 10, so that the protrusion 21 can be prevented from blocking the second mounting hole 13111, and the possibility of interference between the protrusion 21 and the light emitting device 20 in the second mounting hole 13111 is reduced.
In some embodiments of the present application, the main reflection unit 12 is connected to the adjacent main reflection unit 12 or the edge reflection unit 13 through the support portion 5, the reflection assembly further includes a support member 4, the support member 4 is connected to the support body 10, the support member 4 forms a plurality of accommodating spaces 41, the main reflection unit 12 and the edge reflection unit 13 are disposed in the accommodating spaces 41, and the support member 4 is supported by the support portion 5.
The support portion 5 refers to a structure located between the main body reflection unit 12 and the adjacent main body reflection unit 12 or the adjacent edge reflection unit 13. The support member 4 is a structure connected to the support body 10, a plurality of accommodating spaces 41 are formed in the support member, when the main body reflection unit 12 and the edge reflection unit 13 are placed in the accommodating spaces 41, the support member 4 is connected to the support portion 5, so that the reflection cover 1 is supported, and the connection strength between the middle area of the reflection cover 1 and the support body 10 is enhanced, thereby enhancing the structural strength of the reflection cover 1, reducing the possibility that the middle area of the reflection cover 1 deforms such as couch shrinkage under the environments of high temperature and the like, and being beneficial to improving the uniformity of reflection of the reflection assembly.
In some embodiments of the present application, as shown in fig. 4, the supporting member 4 includes a plurality of first supporting plates 42 arranged at intervals and a plurality of second supporting plates 43 arranged at intervals, and the first supporting plates 42 and the second supporting plates 43 are connected with each other to enclose the accommodating space 41. Optionally, the extending direction of the first supporting plate 42 is a direction perpendicular to the supporting body 10, the plurality of first supporting plates 42 are arranged in parallel to each other, the plurality of second supporting plates 43 are arranged in parallel to each other, and the second supporting plates 43 are perpendicularly connected to the first supporting plates 42, so that the accommodating space 41 is of a rectangular parallelepiped structure, and the plurality of accommodating spaces 41 are distributed in an array, so that the main body reflection units 12 and the edge reflection units 13 which are distributed in an array are installed in the accommodating space 41.
Alternatively, as shown in fig. 5, the supporting member 4 and the frame 2 may be an integrally formed structure, and may be manufactured by an integrally forming process of die forming, so that the manufacturing of the reflection assembly is convenient, which is beneficial to improving the manufacturing efficiency of the reflection assembly.
Optionally, the thickness of the first and second support plates 42, 43 is set in the range of 0.2mm-0.6mm, so that the support member 4 has a good supporting effect on the reflector 1. In some embodiments, the thickness of each of the first and second support plates 42 and 43 is set to 0.4mm, and the support 4 has a good supporting effect on the reflector 1.
In some embodiments of the present application, the support portion 5 is provided with a slot 51, the slot 51 is disposed corresponding to the first support plate 42 and the second support plate 43, and the first support plate 42 and the second support plate 43 are inserted into the slot 51.
The insertion grooves 51 are provided corresponding to the first and second support plates 42 and 43, so that the plurality of first support plates 42 and the plurality of second support plates 43 are connected to the support portion 5 by being inserted into the insertion grooves 51. The width of slot 51 is set in the range of 0.2mm to 0.6mm to enable slot 51 to mate with first leg 42 and second leg 43. When the thickness of each of the first support plate 42 and the second support plate 43 is set to 0.4mm, the width of the slot 51 is 0.4mm, and the slot 51 can be connected with the first support plate 42 and the second support plate 43 in a matching manner.
Optionally, the portions of the first and second brackets 42, 43 near the support portion 5 are chamfered to facilitate smooth insertion of the first and second brackets 42, 43 into the slot 51. In some embodiments, the slot 51 is provided as a V-shaped groove with an opening disposed toward the support 4 such that the first and second leg plates 42, 43 can be smoothly inserted into the slot 51.
Some embodiments of the present application further provide a backlight module, which includes a light emitting device 20, a supporting body 10 and the reflection assembly provided by the foregoing technical solution, the reflective cover 1 and the light emitting device 20 are both connected to the supporting body 10, the light emitting device 20 is disposed in the reflective cover 1, and light emitted by the light emitting device 20 can be reflected by the reflective cover 1 and then emitted outward.
Because the backlight module comprises the reflection assembly provided by the technical scheme, the light emitted by the backlight module has higher uniformity.
Some embodiments of the present application further provide a display module, which includes the backlight module provided by the foregoing technical solution. Because the display module comprises the backlight module provided by the technical scheme, the display effect of the display module is uniform.
Some embodiments of the present application further provide a display device, which includes the display module provided by the foregoing technical solution. Because this display device includes the display module assembly that aforementioned technical scheme provided, this display device's display effect is comparatively even, is favorable to improving user's use and experiences.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (18)
1. A reflective assembly, comprising: the reflecting cover comprises a main body area and a peripheral area, the peripheral area is distributed around the main body area and comprises a plurality of main body reflecting units distributed in an array mode, the peripheral area comprises a plurality of edge reflecting units distributed around the main body area, and the reflecting cover comprises a reflecting surface used for reflecting light rays;
the main body reflection unit comprises a first reflection cup;
the edge reflection unit comprises second reflection cups and connecting parts connected between the adjacent second reflection cups, the surface of one side, back to the reflection surface, of each connecting part is a plane with a preset area S, and the edge reflection unit is fixedly bonded on the supporting body through the planes.
2. The reflection assembly according to claim 1, wherein the first reflection cup includes a first reflection bottom and a first reflection wall connected to each other, the first reflection bottom and the first reflection wall define a first reflection space, a surface of the first reflection bottom and the first reflection wall facing the first reflection space form a first reflection surface, and a surface of the first reflection bottom facing the support body is adhesively fixed to the support body as a first adhesion surface having a predetermined area S1.
3. The reflection assembly according to claim 2, wherein the second reflection cup includes a second reflection bottom and a second reflection wall connected to each other, the second reflection bottom and the second reflection wall define a second reflection space, a surface of the second reflection bottom and the second reflection wall facing the second reflection space form the second reflection surface, and a surface of the second reflection bottom facing the support body is adhesively fixed to the support body as a second adhesive surface having a predetermined area S2.
4. The reflection assembly according to claim 3, wherein the edge reflection unit is bonded to the support body with an area m1 ═ x × S + y × S2, and m1/y ≧ S1, where x is the number of the planes in the edge reflection unit and y is the number of the second reflection cups in the edge reflection unit.
5. The reflective assembly of claim 1, wherein said edge reflective unit comprises first subunits located at four corners of said reflective assembly and second subunits arranged in rows or columns between two of said first subunits; the projection area of the first subunit on the support is twice as large as that of the second subunit on the support, and the projection area of the second subunit on the support is twice as large as that of the main reflection unit on the support.
6. The reflection assembly according to claim 5, wherein the first sub-unit comprises four second reflection cups distributed in an array, and the connection portion is connected between two adjacent second reflection cups; the second sub-unit includes two second reflection cups and the connection part connected between the two second reflection cups.
7. The reflection assembly according to claim 3, wherein a compensation reflection surface for reflecting light is provided on a side surface of the connection portion facing the reflection surface, the compensation reflection surface has an area of A1, the second reflection surface on the second reflection wall has an area of A2, and A1 is greater than or equal to A2/5.
8. The reflective assembly of claim 7 wherein said compensating reflective surface is at an angle B1 to said second reflective surface on said second reflective base, and said second reflective surface on said second reflective wall is at an angle B2 to said second reflective surface on said second reflective base, and wherein B1 is 90 ° and B2 ° and 120 °.
9. The reflection assembly according to claim 3, wherein the first reflective base is provided with a first mounting hole through which the light emitting device protrudes into the first reflective space; and a second mounting hole is formed in the second reflection bottom, and the light-emitting device extends into the second reflection space through the second mounting hole.
10. The reflection assembly according to claim 9, further comprising a frame surrounding the reflector, wherein the frame is provided with a protrusion configured to extend toward the reflector, and wherein the protrusion presses the second reflector cup against the support.
11. The reflective assembly of claim 10, further comprising a reflective sheet for reflecting light, said reflective sheet being attached to a side of said frame remote from said support.
12. The reflection assembly of claim 10, wherein a projection of the protrusion on the support body is spaced apart from a projection of the second mounting hole on the support body.
13. The reflection assembly according to claim 1, wherein the main reflection unit is connected to the adjacent main reflection unit or the edge reflection unit through a support portion, the reflection assembly further comprises a support member connected to the support body, the support member forms a plurality of accommodating spaces, the main reflection unit and the edge reflection unit are disposed in the accommodating spaces, and the support member is supported by the support portion.
14. The reflective assembly of claim 13, wherein said support member includes a plurality of first spaced apart plates and a plurality of second spaced apart plates, said first and second plates being interconnected to define said receiving space.
15. The reflective assembly of claim 14 wherein said support portion defines slots corresponding to said first and second support plates, said first and second support plates being received in said slots.
16. A backlight module comprising a light emitting device, a support, and the reflective assembly of any of claims 1-15, wherein a reflective cover and the light emitting device are attached to the support, and wherein the light emitting device is disposed in the reflective cover.
17. A display module comprising the backlight module of claim 16.
18. A display device comprising the display module of claim 17.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210461588.5A CN114859601B (en) | 2022-04-28 | 2022-04-28 | Reflection assembly, backlight module, display module and display device |
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| CN202210461588.5A CN114859601B (en) | 2022-04-28 | 2022-04-28 | Reflection assembly, backlight module, display module and display device |
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| CN114859601B (en) | 2023-09-08 |
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