CN114509883A - Liquid crystal display module - Google Patents
Liquid crystal display module Download PDFInfo
- Publication number
- CN114509883A CN114509883A CN202210128141.6A CN202210128141A CN114509883A CN 114509883 A CN114509883 A CN 114509883A CN 202210128141 A CN202210128141 A CN 202210128141A CN 114509883 A CN114509883 A CN 114509883A
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- circuit board
- printed circuit
- liquid crystal
- crystal display
- middle frame
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000009792 diffusion process Methods 0.000 description 9
- 210000002105 tongue Anatomy 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a liquid crystal display module, which comprises a liquid crystal display panel and a backlight module, wherein the display panel is positioned above the backlight module and comprises a printed circuit board and an array substrate, and the printed circuit board is used for driving the array substrate to work; the printed circuit board comprises a first surface, a second surface and a side surface, wherein the second surface is arranged opposite to the first surface, the side surface is vertically connected with the first surface and the second surface, the distance between the first surface and the second surface is the thickness of the printed circuit board, and the backlight module comprises a frame body and a backlight assembly fixed in the frame body; the printed circuit board also comprises at least one positioning column, and the positioning column extends out from the side surface of the printed circuit board; the frame body is provided with at least one opening, and a positioning column is accommodated in one opening to connect the printed circuit board and the frame body. The application provides a liquid crystal display module can save screw cost and lock and attach time, be difficult to the light leak and can prevent the foreign matter entering.
Description
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal display module.
Background
For Notebook (NB) items in which a Flexible Printed Circuit (FPC) is not folded, a Printed Circuit Board (PCB) needs to be locked to a tongue piece of a backlight metal frame by screws, and the tongue piece supports and fixes the PCB. The back of the backlight metal frame is required to be provided with holes for forming the tongue piece, light leakage at the holes is easy to cause, and foreign matters are easy to enter the backlight structure; the PCB needs to be locked by screws and tongues.
Disclosure of Invention
Therefore, the liquid crystal display module can save screw cost and locking time, is not easy to leak light and can prevent foreign matters from entering.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a liquid crystal display module, which comprises a display panel and a backlight module, wherein the display panel is positioned above the backlight module and comprises a printed circuit board and an array substrate, and the printed circuit board is used for driving the array substrate to work; the printed circuit board comprises a first surface, a second surface and a side surface, wherein the second surface is arranged opposite to the first surface, the side surface is vertically connected with the first surface and the second surface, the distance between the first surface and the second surface is the thickness of the printed circuit board, and the backlight module comprises a frame body and a backlight assembly fixed in the frame body;
the printed circuit board further comprises at least one positioning column, and the positioning column extends out from the side face of the printed circuit board; the frame body is provided with at least one opening, and one positioning column is accommodated in one opening to connect the printed circuit board and the frame body.
In an optional embodiment of the present application, the positioning column is integrally formed with the printed circuit board.
In an optional embodiment of the present application, the positioning column includes a connecting portion and a fastening portion, the connecting portion is connected to a side surface of the printed circuit board, the fastening portion is located at an end of the connecting portion away from the side surface of the printed circuit board, the connecting portion is accommodated in the opening, and the fastening portion extends out of the opening and is fastened to the frame body.
In an optional embodiment of the present application, a size of the connecting portion is smaller than or equal to a size of the opening, and a size of the fastening portion is larger than the size of the opening.
In an optional embodiment of the present application, the locking portion has elasticity.
In an optional embodiment of the present application, the frame body includes a back frame and a middle frame, the middle frame includes a first middle frame portion and a second middle frame portion, the first middle frame portion is vertically connected to the back frame, the second middle frame portion is vertically connected to the first middle frame portion, the second middle frame portion faces the back frame, the opening is opened in the first middle frame portion, the back frame, the first middle frame portion, and the second middle frame portion form a receiving space, the backlight assembly is received in the backlight assembly, and the opening is communicated with the receiving space.
In an optional embodiment of the present application, the backlight assembly includes a first flexible circuit board and a light emitting element electrically connected to the first flexible circuit board; the first flexible circuit board is positioned on the surface of the back frame facing the second middle frame part; the surface of the back frame facing the second middle frame portion is a continuous plane.
In an optional embodiment of the present application, the fastening portion includes a first fastening surface connected to the connecting portion and a second fastening surface opposite to the first fastening surface, the size of the first fastening surface is larger than the size of the opening, and the first fastening surface is attached to a surface of the first middle frame portion facing the accommodating space.
In an optional embodiment of the present application, the fastening portion further includes at least one connection surface, and the connection surface connects the first fastening surface and the second fastening surface.
In an optional embodiment of the present application, a size of the second snap surface is smaller than a size of the first snap surface.
According to the liquid crystal display module, a tongue piece on the existing frame body is omitted, the frame body is provided with the opening, the side face of the printed circuit board driving the array substrate to work is provided with the positioning column matched with the opening, and the printed circuit board is fixedly connected with the frame body in an inserting mode through the positioning column, so that the screw cost and the locking time can be saved; in addition, the opening of the exposed part of the first flexible circuit board on the back frame of the frame body is eliminated, so that light leakage can be avoided, foreign matters can be prevented from entering the liquid crystal display module, and the display quality of the liquid crystal display module can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of a liquid crystal display module according to a first embodiment of the present disclosure.
Fig. 2 is a partial exploded view of the lcd module shown in fig. 1.
FIG. 3 is a cross-sectional view of the liquid crystal display module along the section line III-III shown in FIG. 1.
Fig. 4 is an exploded view of a liquid crystal display module according to a second embodiment of the present application.
FIG. 5 is a schematic assembly view of the LCD module shown in FIG. 4.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" 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. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The present application may repeat reference numerals and/or letters in the various implementations, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various implementations and/or configurations discussed.
The backlight module aims at the problem that holes are required to be formed in the back of a backlight metal frame during the forming of a tongue piece in the existing liquid crystal display module, so that light leakage is easily caused at the positions of the holes, and foreign matters easily enter a backlight structure; the PCB needs to be locked and attached through screws and tongue pieces, the tongue pieces on the existing frame body are eliminated, the frame body is provided with openings, positioning columns matched with the openings are formed on the side face of the printed circuit board driving the array substrate to work, and the printed circuit board is fixedly connected with the frame body through the positioning columns in an inserting mode, so that the screw cost and the locking and attaching time can be saved; in addition, the opening of the exposed part of the first flexible circuit board on the back frame of the frame body is eliminated, so that light leakage can be avoided, foreign matters can be prevented from entering the liquid crystal display module, and the display quality of the liquid crystal display module can be improved.
Referring to fig. 1 to 3, a first embodiment of the present application provides a liquid crystal display module 100, where the liquid crystal display module 100 includes a liquid crystal display panel 120 and a backlight module 110, the display panel 120 is located above the backlight module 110, and the backlight module 110 includes a frame 10 and a backlight assembly 20 fixed in the frame 10.
The frame body 10 includes a back frame 11 and a middle frame 12, the middle frame 12 includes a first middle frame portion 121 and a second middle frame portion 122, the second middle frame portion 122 is perpendicularly connected to the first middle frame portion 121, the second middle frame portion 122 is parallel and faces the back frame 11, and one end of the first middle frame portion 121, which is away from the second middle frame portion 122, is perpendicularly connected to the back frame 11.
The surface of the back frame 11 facing the second middle frame portion 122 is a continuous plane, that is, an opening or a hole communicating with the accommodating space L is not formed in the back frame 11.
In this embodiment, the first middle frame portion 121 is integrally formed with the second middle frame portion 122, and the first middle frame portion 121 is integrally formed with the back frame 11. In another embodiment, the first middle frame portion 121 and the second middle frame portion 122 and the first middle frame portion 121 and the back frame 11 may be connected together by a mechanical structure, a mortise and tenon structure, an adhesive, or the like.
A receiving space L is formed among the first middle frame portion 121, the second middle frame portion 122 and the back frame 11, and the backlight assembly 20 is at least partially received in the receiving space L and fixed on the second middle frame portion 122 and the back frame 11.
The first middle frame portion 121 is provided with at least one opening 123, and the opening 123 penetrates through the first middle frame portion 121 and is communicated with the accommodating space L.
Specifically, the backlight assembly 20 includes a first flexible circuit board 22, a light emitting element 21 formed on the flexible circuit board 22 and electrically connected to the first flexible circuit board 22, a light guide plate 23, a first reflective sheet 24, a second reflective sheet 25, and an optical function film 26.
Specifically, the light emitting element 21 is accommodated in the accommodating space L and fixed on a surface of the first flexible circuit board 22 facing away from the back frame 11. Wherein the light emitting element 21 is for emitting light.
Specifically, the first flexible circuit board 22 is received in the receiving space L and fixed on a surface of the back frame 11 facing the receiving space L. The first flexible circuit board 22 is used for driving the light emitting element 21 to emit light.
Specifically, the light guide plate 23 is located above the back frame 11 and is bonded to the first flexible circuit board 22 through an adhesive 27, the light guide plate 23 is located on one side of the light emitting element 21, and one end of the adhesive 27 facing the light emitting element 21 is bonded to the light emitting element 21. The light guide plate 23 is used to convert the light emitted from the light emitting elements 21 on the side edge into a surface light source and make the emitted light uniform.
Specifically, the first reflective sheet 24 is located between the light guide plate 23 and the back frame 11 and located on one side of the first flexible circuit board 22 and the adhesive 27. Specifically, two opposite surfaces of the first reflective sheet 24 are respectively in contact with the back frame 11 and the light guide plate 23. The first reflective sheet 24 is used for reflecting light rays exposed from a side surface of the light guide plate 23 facing the back frame 11 back into the light guide plate 23, so as to improve the use efficiency of the light. In this embodiment, the adhesive 27 is lamp glue, and in other embodiments, the adhesive 27 is other adhesive besides lamp glue.
Specifically, the second reflective sheet 25 is located on a surface of the light guide plate 23 facing away from the first reflective sheet 24 and on a surface of the light emitting element 21 facing away from the first flexible circuit board 22, and a surface of the second reflective sheet 25 facing away from the light emitting element 21 is in contact with a surface of the second middle frame portion 122 facing the back frame 11. The second reflective sheet 25 is used for reflecting light rays exposed from a side surface of the light guide plate 23 facing away from the back frame 11 back into the light guide plate 23, so as to improve the use efficiency of the light.
Specifically, the optical functional film 26 is disposed on a surface of the light guide plate 23 facing away from the first reflection sheet 24 and facing the second reflection sheet 25. Specifically, in an optional embodiment of the present application, the optical functional film 26 includes a first diffusion sheet 261, a first light enhancement sheet 262, a second diffusion sheet 263 and a second light enhancement sheet 264, the first diffusion sheet 261 is located on the light guide plate 23, the first light enhancement sheet 262 is located on the first diffusion sheet 261, the second diffusion sheet 263 is located on the first light enhancement sheet 262, and the second light enhancement sheet 264 is located on the second diffusion sheet 263 and faces the display panel 120. The light emitted from the light guide plate 23 enters the first diffusion sheet 261 and the second diffusion sheet 263 and is diffused, so as to provide a uniform surface light source for the display panel 120. The light emitted from the light guide plate 23 enters the first light enhancement sheet 262 and the second light enhancement sheet 264 and is refracted to increase the brightness of the display panel 120. Of course, in other embodiments, the optical functional film 26 is not limited to the diffusion sheet and the brightness enhancement sheet, and may be designed according to the actual situation.
Referring to fig. 1 to fig. 3 again, the display panel 120 includes an array substrate 51, a color filter substrate 52 disposed opposite to the array substrate 51, a liquid crystal (not shown) formed between the array substrate 51 and the color filter substrate 52, a first polarizer 53 formed on the array substrate 51, a second polarizer 54 formed on the color filter substrate 52, an integrated circuit 55 formed on the array substrate 51, a printed circuit board 56, and a second flexible circuit board 57. The first polarizer 53 faces the second brightness enhancement film 264, and the second polarizer 54 faces away from the array substrate 51. The printed circuit board 56 is electrically connected to the integrated circuit 55 through the second flexible circuit board 57 and traces (not shown) in the array substrate 51, so as to drive the display panel 120 to operate.
Referring to fig. 1 to 3, the printed circuit board 56 includes a first surface 561, a second surface 562 opposite to the first surface 561, and a side surface 563 vertically connecting the first surface 561 and the second surface 562, and a distance between the first surface 561 and the second surface 562 is a thickness of the printed circuit board 56. One end of the second flexible circuit board 57 is electrically connected on the first surface 561. The printed circuit board 56 further includes at least one positioning post 58, the positioning post 58 extends from the side surface 563 of the printed circuit board 56, and one positioning post 58 is received in one of the openings 123 to connect the printed circuit board 56 and the frame 10.
In an alternative embodiment of the present application, the positioning posts 58 are integrally formed with the printed circuit board 56.
Referring to fig. 4 to fig. 5, a second alternative embodiment of the present application provides another lcd module, which is different from the lcd module 100 in that: the positioning post 58 includes a connecting portion 581 and a fastening portion 582, the connecting portion 581 is connected to a side surface 563 of the printed circuit board 56, the fastening portion 582 is located at an end of the connecting portion 581 away from the side surface 563 of the printed circuit board 56, the connecting portion 581 is received in the opening 123, and the fastening portion 582 extends out of the opening 123 and is fastened to the first middle frame 121.
In an alternative embodiment of the present application, the size of the connecting portion 581 is smaller than or equal to the size of the opening 123, and the size of the buckling portion 582 is larger than the size of the opening 123.
In an alternative embodiment of the present application, the locking portion 582 has elasticity.
The fastening portion 582 includes a first fastening surface 5821 connected to the connecting portion 581 and a second fastening surface 5822 opposite to the first fastening surface 5821, the size of the first fastening surface 5821 is larger than the size of the opening 123, and the first fastening surface 5821 is attached to the surface of the first middle frame 121 facing the receiving space L.
The fastening portion 582 further includes at least one connection surface 5823, wherein the connection surface 5823 is connected to the first fastening surface 5821 and the second fastening surface 5822; the second snap surface 5822 is smaller in size than the first snap surface 5821. That is, the locking portion 582 has a boss shape.
According to the liquid crystal display module, a tongue piece on the existing frame body is omitted, the frame body is provided with the opening, the side face of the printed circuit board driving the array substrate to work is provided with the positioning column matched with the opening, and the printed circuit board is fixedly connected with the frame body in an inserting mode through the positioning column, so that the screw cost and the locking time can be saved; in addition, the opening of the exposed part of the first flexible circuit board on the back frame of the frame body is eliminated, so that light leakage can be avoided, foreign matters can be prevented from entering the liquid crystal display module, and the display quality of the liquid crystal display module can be improved.
The liquid crystal display module provided by the embodiment of the present application is described in detail above, and a specific example is applied to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A liquid crystal display module comprises a liquid crystal display panel and a backlight module, wherein the display panel is positioned above the backlight module and comprises a printed circuit board and an array substrate, and the printed circuit board is used for driving the array substrate to work; the printed circuit board comprises a first surface, a second surface and a side surface, wherein the second surface is arranged opposite to the first surface, the side surface is vertically connected with the first surface and the second surface, the distance between the first surface and the second surface is the thickness of the printed circuit board, and the backlight module comprises a frame body and a backlight assembly fixed in the frame body; the method is characterized in that:
the printed circuit board further comprises at least one positioning column, and the positioning column extends out from the side face of the printed circuit board; the frame body is provided with at least one opening, and one positioning column is accommodated in one opening to connect the printed circuit board and the frame body.
2. The liquid crystal display module of claim 1, wherein the positioning posts are integrally formed with the printed circuit board.
3. The liquid crystal display module as claimed in claim 1 or 2, wherein the positioning column comprises a connecting portion and a fastening portion, the connecting portion is connected to a side surface of the printed circuit board, the fastening portion is located at an end of the connecting portion facing away from the side surface of the printed circuit board, the connecting portion is received in the opening, and the fastening portion extends out of the opening and is fastened to the frame.
4. The liquid crystal display module of claim 3, wherein the size of the connecting portion is smaller than or equal to the size of the opening, and the size of the buckling portion is larger than the size of the opening.
5. The liquid crystal display module of claim 4, wherein the latch portion is resilient.
6. The liquid crystal display module as claimed in claim 3, wherein the frame body includes a back frame and a middle frame, the middle frame includes a first middle frame portion and a second middle frame portion, the first middle frame portion is vertically connected to the back frame, the second middle frame portion is vertically connected to the first middle frame portion, the second middle frame portion faces the back frame, the opening is opened on the first middle frame portion, the back frame, the first middle frame portion and the second middle frame portion form a receiving space, the backlight assembly is received in the backlight assembly, and the opening is communicated with the receiving space.
7. The liquid crystal display module as claimed in claim 6, wherein the backlight assembly comprises a first flexible circuit board and a light emitting device electrically connected to the first flexible circuit board; the first flexible circuit board is positioned on the surface of the back frame facing the second middle frame part; the surface of the back frame facing the second middle frame portion is a continuous plane.
8. The liquid crystal display module as claimed in claim 6, wherein the fastening portion includes a first fastening surface connected to the connecting portion and a second fastening surface opposite to the first fastening surface, the first fastening surface is larger than the opening, and the first fastening surface is attached to a surface of the first middle frame portion facing the receiving space.
9. The liquid crystal display module as claimed in claim 8, wherein the fastening portion further comprises at least one connecting surface, and the connecting surface connects the first fastening surface and the second fastening surface.
10. The liquid crystal display module of claim 8, wherein the second snap surface is smaller in size than the first snap surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128141.6A CN114509883B (en) | 2022-02-11 | 2022-02-11 | Liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128141.6A CN114509883B (en) | 2022-02-11 | 2022-02-11 | Liquid crystal display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114509883A true CN114509883A (en) | 2022-05-17 |
| CN114509883B CN114509883B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210128141.6A Active CN114509883B (en) | 2022-02-11 | 2022-02-11 | Liquid crystal display module |
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| CN (1) | CN114509883B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400237A (en) * | 2008-08-27 | 2009-04-01 | 友达光电（苏州）有限公司 | Positioning construction, rubber frame construction, backlight module for circuit board and LCD |
| CN103137021A (en) * | 2012-11-07 | 2013-06-05 | 友达光电股份有限公司 | Display device |
| CN109085721A (en) * | 2018-09-11 | 2018-12-25 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN113835269A (en) * | 2021-10-08 | 2021-12-24 | 厦门天马微电子有限公司 | Backlight module and display device |
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2022
- 2022-02-11 CN CN202210128141.6A patent/CN114509883B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101400237A (en) * | 2008-08-27 | 2009-04-01 | 友达光电（苏州）有限公司 | Positioning construction, rubber frame construction, backlight module for circuit board and LCD |
| CN103137021A (en) * | 2012-11-07 | 2013-06-05 | 友达光电股份有限公司 | Display device |
| CN109085721A (en) * | 2018-09-11 | 2018-12-25 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN113835269A (en) * | 2021-10-08 | 2021-12-24 | 厦门天马微电子有限公司 | Backlight module and display device |
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| CN114509883B (en) | 2023-11-28 |
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