CN110308590B - Diffusion plate, backlight module, assembling method and display device - Google Patents
Diffusion plate, backlight module, assembling method and display device Download PDFInfo
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- CN110308590B CN110308590B CN201910647409.5A CN201910647409A CN110308590B CN 110308590 B CN110308590 B CN 110308590B CN 201910647409 A CN201910647409 A CN 201910647409A CN 110308590 B CN110308590 B CN 110308590B
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- main body
- diffusion plate
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02F1/133608—Direct backlight including particular frames or supporting means
Abstract
The invention provides a diffusion plate, a backlight module, an assembling method and a display device, belongs to the technical field of display, and can at least partially solve the problem that the conventional direct type backlight module is difficult to further lighten and thin. The diffusion plate comprises a diffusion plate main body, at least one limiting piece and at least two carrying pieces; the limiting pieces are used for limiting the optical diaphragm, each limiting piece is positioned on the light emitting side of the diffusion plate main body, and the orthographic projection of each limiting piece on the diffusion plate main body is not overlapped with the display area and is overlapped with the peripheral area; the carrying pieces are used for carrying the lamp panel, all the carrying pieces are located on the light inlet side of the diffusion plate main body, all the carrying pieces do not overlap with the display area on the contact surface of the diffusion plate main body and overlap with the peripheral area, the carrying pieces are correspondingly arranged on at least one pair of opposite peripheral areas of the diffusion plate main body, and the carrying pieces are not arranged on at least one peripheral area of the diffusion plate main body.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a diffusion plate, a backlight module, an assembling method of the backlight module and a display device.
Background
The backlight module can provide backlight for a liquid crystal display panel and the like. The conventional backlight module can be divided into a direct type backlight module and a side type backlight module. In the direct-type backlight module, a back plate and a frame are required to support the lamp panel and the optical films (e.g., an upper prism sheet, a lower prism sheet, etc.). The frame and the thickness of the existing direct type backlight module are difficult to further shorten.
Disclosure of Invention
The invention at least partially solves the problem that the frame and the thickness of the existing direct type backlight module are difficult to further shorten, and provides a diffusion plate, a backlight module, an assembling method of the backlight module and a display device.
The diffusion plate comprises a diffusion plate main body, wherein the diffusion plate main body comprises a light inlet surface and a light outlet surface which are opposite, and a plurality of side surfaces which are connected with the light inlet surface and the light outlet surface; the limiting pieces are used for limiting the optical diaphragm, each limiting piece is located on the light emitting side of the diffusion plate main body, and the orthographic projection of each limiting piece on the diffusion plate main body is not overlapped with the display area and is overlapped with the peripheral area; the carrying pieces are used for carrying the lamp panel, each carrying piece is located at the light inlet side of the diffusion plate main body, each carrying piece is located at the contact surface of the diffusion plate main body, the display area is not overlapped and the peripheral area is overlapped, the carrying pieces are correspondingly arranged at least one pair of opposite peripheral areas of the diffusion plate main body, and the carrying pieces are not arranged at least one peripheral area of the diffusion plate main body.
Optionally, the diffuser plate main body, the limiting member, and the carrying member are of an integrally formed structure.
Optionally, the outer boundary of the orthographic projection of the limiting member on the diffusion plate main body is flush with the side face of the corresponding diffusion plate main body, and the outer boundary of the orthographic projection of the carrying member on the diffusion plate main body is flush with the side face of the corresponding diffusion plate main body.
Optionally, the peripheral region where the carrying member is disposed is correspondingly provided with the limiting member.
Optionally, the carrying part comprises a first sub-plate and a second sub-plate, the first sub-plate and the second sub-plate are connected to form a bending structure, the first end face of the first sub-plate is just opposite to the peripheral area where the first sub-plate is located, the first sub-plate extends in the direction perpendicular to the diffusion plate main body, the end face, opposite to the first end face, of the first sub-plate is a second end face, and the second sub-plate is connected with the second end face and faces the opposite side of the side face of the diffusion plate main body where the carrying part is located.
Optionally, the side face of the limiting part, which is used for facing away from the optical diaphragm, the side face of the peripheral area where the limiting part is located, the side face of the carrying part, which is used for facing away from the lamp panel, and the side face of the peripheral area where the carrying part is located are all blackened.
The technical scheme adopted for solving the technical problem is that the backlight module comprises the diffusion plate, the optical diaphragm which is positioned on the light emitting side of the diffusion plate main body and limited by the limiting piece, and the lamp panel which is positioned on the light emitting side of the diffusion plate main body and carried by the carrying piece.
Optionally, the light-emitting side of the diffusion plate main body is not provided with the side position of the limiting part and the light-entering side of the main body of the diffusion plate is not provided with the side position of the carrying part and is provided with a closed structure, and the closed structure is used for closing the optical film and the lamp panel.
Optionally, the closure structure comprises a siliceous closure strip.
Optionally, the lamp plate includes the lamp plate basement and sets up the lamp plate basement is in the a plurality of illuminating parts of diffuser plate main part one side.
The technical scheme adopted for solving the technical problem of the invention is an assembling method of a backlight module, the diffusion plate is adopted, and the assembling method comprises the following steps: placing an optical film on the light emitting side of the diffusion plate main body, wherein the optical film is limited by the limiting piece; inserting the lamp panel from the lower side of the side surface, which is not provided with the carrying piece, of the light inlet side of the diffusion plate main body to the lower side of the light inlet side of the diffusion plate main body and carrying the lamp panel on the carrying piece; utilize the enclosed construction to be in the light-emitting side of diffuser plate main part and not set up the side position department of locating part is right the optics diaphragm seals and the light-in side of the main part of diffuser plate and not set up the side position department of carrier is right the lamp plate seals.
The technical scheme adopted for solving the technical problem is that the display device comprises the backlight module and a display panel arranged on the light emitting side of the light guide plate main body of the backlight module.
Drawings
Fig. 1 is a schematic structural diagram of a diffusion plate according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a portion of a backlight module according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a portion of a backlight module according to an embodiment of the present invention;
fig. 4 is a sectional view showing a partial structure of a display device according to an embodiment of the present invention;
fig. 5 is a sectional view showing a partial structure of a display device according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a method for assembling a backlight module according to an embodiment of the invention;
wherein the reference numerals are: 1. a diffusion plate; 11. a diffusion plate main body; 12. a limiting member; 13. a carrier; 131. a first sub-board; 132. a second sub-board; 1B, coating a black layer; 2. a lamp panel; 21. a lamp panel base; 22. a light emitting member; 3. an optical film; 4. a closed structure; 1000. a display panel; 1001. and (5) soaking cotton.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
referring to fig. 1, the present embodiment provides a diffuser plate 1, which includes a diffuser plate main body 11, where the diffuser plate main body 11 includes a light incident surface and a light exiting surface opposite to each other, and a plurality of side surfaces connected to the light incident surface and the light exiting surface, and the diffuser plate main body 11 is divided into a display area and a plurality of peripheral areas surrounding the display area, where each peripheral area corresponds to one side surface.
The diffusion plate 1 can be applied to a direct type backlight module. The diffuser plate body 11 is used to form a surface light source, and the specific structural features of the diffuser plate can refer to those of a conventional direct-type backlight module. The features of the diffusion plate body 11 will not be described in detail. Wherein the light rays emerging from the display area are used for display. The diffuser plate 1 shown in fig. 1 has 4 sides and accordingly 4 peripheral sections. The four sections of peripheral areas are connected end to surround the display area. The boundary between the display area and the peripheral area can be generally regarded as the boundary against which the optical film 3 faces in the subsequent assembly process. Of course, the boundary between the display region and the peripheral region may also be set as the boundary of the active area (AA region) of the display panel 1000 in the subsequent assembly process. This embodiment is not particularly limited to this.
The diffuser plate 1 further includes at least one stopper 12 connected to the diffuser plate main body 11 and at least two carriers 13 connected to the diffuser plate main body 11.
The limiting members 12 are used for limiting the optical film 3, each limiting member 12 is located on the light emitting side of the diffusion plate main body 11, and the orthographic projection of each limiting member 12 on the diffusion plate main body 11 is not overlapped with the display area and is overlapped with the peripheral area. The limiting member 12 does not enter the display area and thus does not block the light for display. In the embodiment shown in fig. 1, the light guide plate 1 has 3 stoppers 12, which are connected to each other end-to-end. Of course, the length of the stopper 12 is not limited to be as long as the side surface of the corresponding light guide plate body 11. The number of the light guide plates 1 is not limited to 3, and the optical modules 3 may be limited.
The carrying pieces 13 are used for carrying the lamp panel 2, each carrying piece 13 is located on the light incident side of the diffusion plate main body 11, each carrying piece 13 is overlapped with the display area (so that light emitted by the lamp panel 2 is not influenced to enter the display area) on the contact surface of the diffusion plate main body 11 and is overlapped with the peripheral area (namely, the carrying pieces 13 are fixed on the peripheral area), the carrying pieces 13 are correspondingly arranged on at least one pair of opposite peripheral areas of the diffusion plate main body 11, and the carrying pieces 13 are not arranged on at least one peripheral area of the diffusion plate main body 11. Of course, the length of the mounting member 13 is not limited to be as long as the side surface of the corresponding light guide plate body 11.
The following description will be made by taking the light exit side as the upper side of the diffusion plate body 11 and the light entrance side as the lower side of the diffusion plate body 11, in conjunction with the usage state of the diffusion plate 1.
Referring to fig. 2, when the diffuser plate 1 is applied to a backlight module, the stopper 12 on the upper side of the diffuser plate body 11 can limit the optical film 3. The two opposite mounts 13 on the lower side of the diffuser plate body 11 can carry edge regions at two opposite sides of the lamp panel 2. An opening is formed at a side of the diffusion plate main body 11 where the carrier 13 is not provided, so that the lamp panel 2 can be inserted into the lower side of the diffusion plate main body 11 from this opening when assembling the backlight module.
The diffuser plate 1 of this embodiment has the effect of the support lamp plate 2 and the spacing optical diaphragm 3 that traditional backplate and frame played simultaneously concurrently, can save backplate and the frame commonly used among traditional straight following formula backlight unit, has greatly shortened the holistic size of backlight unit and weight, and backlight unit's frame also can be shortened simultaneously.
Alternatively, the diffuser plate body 11, the stopper 12, and the carrier 13 are integrally formed. Thus, the manufacturing process of the diffuser plate 1 can be simplified. Of course, the stopper 12 and the carrier 13 may be fixed to the peripheral region of the diffusion plate main body 11 by means of bonding or the like.
Alternatively, the outer boundary of the orthographic projection of the limiting member 12 on the diffusion plate main body 11 is flush with the side face of the corresponding diffusion plate main body 11, and the outer boundary of the orthographic projection of the carrying member 13 on the diffusion plate main body 11 is flush with the side face of the corresponding diffusion plate main body 11. The outer boundary here refers to a boundary away from the display area. In this embodiment, referring to fig. 1 and 2, the entire side surface of the light guide plate 1 is flat, which is advantageous for the subsequent assembly process. Of course, due to other structural considerations, the positions of the limiting member 12 and the mounting member 13 may be moved inward or outward in addition to fig. 1 and 2.
Optionally, a stopper 12 is correspondingly disposed at a peripheral region of the diffusion plate main body 11 where the carrier 13 is disposed. So set up, diffuser plate main part 11 upper and lower structure is more regular, can make follow-up backlight unit's equipment simpler.
Alternatively, the number of the mounts 13 is three. I.e. leaving only one opening below the diffuser body 11 for insertion of the lamp panel 2.
Alternatively, the mounting members 13 are integrally connected, and the stopper members 12 are integrally connected. So, improve the sealed effect to optical diaphragm 3 and lamp plate 2, reduce the light leak.
Of course, as shown in fig. 1, the length of each mounting tool 13 may be the same as the length of the side surface of the corresponding diffusion plate body 11, or may be shorter than the length of the side surface of the corresponding diffusion plate body 11.,
optionally, the carrier 13 includes a first sub-plate 131 and a second sub-plate 132, the first sub-plate 131 and the second sub-plate 132 are connected to form a bent structure, a first end surface of the first sub-plate 131 faces the peripheral region where the first sub-plate is located, the first sub-plate 131 extends in a direction perpendicular to the diffuser plate main body 11, an end surface of the first sub-plate 131 opposite to the first end surface is a second end surface, and the second sub-plate 132 is connected to the second end surface and extends toward an opposite side of a side surface of the diffuser plate main body 11 where the carrier 13 is located.
That is, the cross section of the carrier 13 is "L" shaped. The second sub-board 132 directly contacts and supports the edge region of the lamp panel 2 in subsequent applications.
Of course, the shape of the limiting members 12 may be a plate shape as shown in fig. 1, that is, each limiting member 12 has a rectangular parallelepiped shape. The shapes of the stopper 12 and the carrier 13 are not limited to this.
Optionally, the side surface of the limiting member 12 facing away from the optical film 3, the side surface of the peripheral area where the limiting member 12 is located, the side surface of the carrying member 13 facing away from the lamp panel 2, and the side surface of the peripheral area where the carrying member 13 is located are all blackened. Referring to fig. 2, in order to reduce light leakage, a black coating process may be performed on the outer side surface of the light guide plate. To highlight this process, it is indicated in the drawing by a blackened layer 1B.
Example 2:
referring to fig. 2 and fig. 3, and with reference to fig. 1, the present embodiment provides a backlight module, which includes a diffuser plate 1 of embodiment 1, an optical film 3 located on a light-emitting side of a diffuser plate main body 11 and limited by a limiting member 12, and a lamp panel 2 located on a light-entering side of the diffuser plate main body 11 and carried by a carrying member 13.
Because diffuser plate 1 has the effect of spacing and bearing lamp plate 2 to optical diaphragm 3 concurrently, backlight unit can realize narrow frame and frivolousization.
Optionally, a sealing structure 4 is disposed at a side position of the diffuser body 11 on the light emitting side where the limiting member 12 is not disposed and at a side position of the diffuser body 1 on the light incident side where the carrying member 13 is not disposed, and the sealing structure 4 is used to seal the optical film 3 and the lamp panel 2.
The description is made with reference to fig. 1 and 3, and with reference to the current perspective of fig. 3. The left side of the light guide plate is not provided with the stopper 12 and the carrier 13, which makes the backplane film and the lamp panel 2 easily slide out from the opening. The closing structure 4 serves to block this opening.
Optionally, the closure structure 4 comprises a silicon closure strip. The siliceous sealing strip is soft in material, easy to process and assemble and has the effect of shading light.
Optionally, the closed structure 4 is shaped like a half-i. With reference to fig. 3, the horizontal bar above the sealing structure 4 also plays a role in pressing the fixed optical film 3, and the horizontal bar below the sealing structure 4 plays a role in carrying the lamp panel 2.
Alternatively, the lamp panel 2 includes a lamp panel base 21 and a plurality of luminous members 22 provided on a side of the lamp panel base 21 facing the diffuser body 11. The arrangement of the luminous elements 22 is not limited in this embodiment. An example of the light emitting element 22 is a Mini light emitting diode (Mini-LED).
Example 3:
referring to fig. 6 in combination with fig. 2 and 3, the present embodiment provides an assembling method of a backlight module, which uses the diffuser plate 1 of embodiment 1, and the assembling method includes the following steps.
S1, the optical film 3 is placed on the light emitting side of the diffusion plate main body 11, wherein the optical film 3 is limited by the limiting member 12.
S2, the lamp panel 2 is inserted from below the side surface of the diffuser plate body 11 on the light incident side where the mounting member 13 is not provided to the light incident side lower side of the diffuser plate body 11 and mounted on the mounting member 13.
S3, the optical film 3 is sealed at the side position of the light-emitting side of the diffusion plate body 11 where the stopper 12 is not provided and the lamp panel 2 is sealed at the side position of the light-emitting side of the diffusion plate body 1 where the carrier 13 is not provided by the sealing structure 4.
It should be noted that the order of assembling the optical film 3 and the lamp panel 2 can be changed from front to back. In addition, the optical film 3 and the lamp panel 2 can be fixed by means of, for example, gluing. Of course, the gap formed for providing the stopper 12 and the carrier 13 may be closed in the subsequent manufacturing process of the display module.
By using the assembling method, the traditional back plate and frame can be saved, and the light and thin of the backlight module can be realized.
Example 4:
referring to fig. 4 and 5, the present embodiment provides a display device, including the backlight module of embodiment 2 and a display panel 1000 disposed on the light exit side of the light guide plate main body of the backlight module. By adopting the backlight module of embodiment 2, the display device also realizes a light and thin design.
Specifically, the display device can be any product or component with a display function, such as a liquid crystal display module, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Fig. 4 and 5 may show a liquid crystal display module, and a liquid crystal display panel 1000 is disposed on a light emitting side of the backlight module. Referring to fig. 5, the sealing structure 4 also serves to buffer the pressure of the display panel 1000 on the backlight module. In the place where the enclosing structure 4 is not disposed, referring to fig. 4, the foam 1001 is used to buffer the pressure of the display panel 1000 on the backlight module. Of course, the enclosing structure 4 and the foam 1001 also function to seal the gap between the lower side of the display panel 1000 and the optical film 3.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (11)
1. A diffusion plate is characterized by comprising a diffusion plate main body, wherein the diffusion plate main body comprises a light inlet surface and a light outlet surface which are opposite to each other, and a plurality of side surfaces which are connected with the light inlet surface and the light outlet surface;
the limiting pieces are used for limiting the optical diaphragm, each limiting piece is located on the light emitting side of the diffusion plate main body, and the orthographic projection of each limiting piece on the diffusion plate main body is not overlapped with the display area and is overlapped with the peripheral area;
the carrying pieces are used for carrying the lamp panel, each carrying piece is located on the light incidence side of the diffusion plate main body, the contact surface of each carrying piece on the diffusion plate main body is not overlapped with the display area and is overlapped with the peripheral area, the carrying pieces are correspondingly arranged on at least one pair of opposite peripheral areas of the diffusion plate main body, and the carrying pieces are not arranged on at least one peripheral area of the diffusion plate main body;
the carrier includes first daughter board and second daughter board, first daughter board with the second daughter board is connected and is formed bending structure, the first terminal surface of first daughter board is just to its place peripheral region, first daughter board is along the perpendicular to the direction of diffuser plate main part is extended, first daughter board with the terminal surface that first terminal surface is relative is the second terminal surface, the second daughter board with the second terminal surface links to each other and moves towards the offside extension of the side of carrier place diffuser plate main part.
2. The diffuser plate of claim 1, wherein the diffuser plate body, the retainer and the carrier are integrally formed.
3. The diffuser plate of claim 1 wherein the outer boundaries of the retainers in the orthographic projection of the diffuser plate body are flush with the sides of the corresponding diffuser plate body, and the outer boundaries of the mounts in the orthographic projection of the diffuser plate body are flush with the sides of the corresponding diffuser plate body.
4. The diffuser plate as claimed in claim 1, wherein the limiting members are disposed at the peripheral region where the carrying members are disposed.
5. The diffuser plate according to claim 1, wherein the side of the limiting member facing away from the optical film, the side of the peripheral area where the limiting member is located, the side of the carrier member facing away from the lamp panel, and the side of the peripheral area where the carrier member is located are blackened.
6. A backlight module, comprising the diffuser plate according to any one of claims 1 to 5, an optical film located at the light exit side of the diffuser plate main body and limited by the limiting member, and a lamp panel located at the light entrance side of the diffuser plate main body and carried by the carrying member.
7. The backlight module according to claim 6, wherein a sealing structure is disposed at a position of a side surface of the diffuser main body where the position-limiting member is not disposed and at a position of a side surface of the diffuser main body where the light-incident side of the diffuser main body where the carrying member is not disposed, the sealing structure being configured to seal the optical film and the lamp panel.
8. A backlight module according to claim 7, wherein the enclosing structure comprises a silicon enclosing strip.
9. The backlight module as claimed in claim 6, wherein the lamp panel comprises a lamp panel base and a plurality of light emitting members disposed on a side of the lamp panel base facing the diffuser body.
10. A method of assembling a backlight module using the diffuser plate according to any one of claims 1 to 5, the method comprising:
placing an optical film on the light emitting side of the diffusion plate main body, wherein the optical film is limited by the limiting piece;
inserting the lamp panel from the lower side of the side surface, which is not provided with the carrying piece, of the light inlet side of the diffusion plate main body to the lower side of the light inlet side of the diffusion plate main body and carrying the lamp panel on the carrying piece;
utilize the enclosed construction to be in the light-emitting side of diffuser plate main part and not set up the side position department of locating part is right the optics diaphragm seals and the light-in side of the main part of diffuser plate and not set up the side position department of carrier is right the lamp plate seals.
11. A display device comprising the backlight module according to any one of claims 6 to 9 and a display panel disposed on a light exit side of the diffusion plate main body of the backlight module.
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| CN201910647409.5A CN110308590B (en) | 2019-07-17 | 2019-07-17 | Diffusion plate, backlight module, assembling method and display device |
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| CN201910647409.5A CN110308590B (en) | 2019-07-17 | 2019-07-17 | Diffusion plate, backlight module, assembling method and display device |
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| TW200835962A (en) * | 2007-02-16 | 2008-09-01 | Ind Tech Res Inst | A liquid crystal display device, backlight module and method for manufacturing thereof |
| WO2011089960A1 (en) * | 2010-01-19 | 2011-07-28 | シャープ株式会社 | Lighting device, display device, and television receiver device |
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| CN101131503A (en) * | 2006-08-23 | 2008-02-27 | 中华映管股份有限公司 | Backlight module |
| CN103698918A (en) * | 2013-12-30 | 2014-04-02 | 京东方科技集团股份有限公司 | Straight-down-type backlight module testing device |
| CN105911757A (en) * | 2016-05-19 | 2016-08-31 | 京东方科技集团股份有限公司 | Backlight module frame, backlight module and liquid crystal display device |
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