CN114509896B - Liquid crystal display module - Google Patents

Liquid crystal display module Download PDF

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Publication number
CN114509896B
CN114509896B CN202210121807.5A CN202210121807A CN114509896B CN 114509896 B CN114509896 B CN 114509896B CN 202210121807 A CN202210121807 A CN 202210121807A CN 114509896 B CN114509896 B CN 114509896B
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CN
China
Prior art keywords
circuit board
flexible circuit
liquid crystal
crystal display
frame
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Active
Application number
CN202210121807.5A
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Chinese (zh)
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CN114509896A (en
Inventor
谢天旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Guangzhou China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN202210121807.5A priority Critical patent/CN114509896B/en
Publication of CN114509896A publication Critical patent/CN114509896A/en
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Classifications

    • 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
    • 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
    • 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
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/133612—Electrical details

Abstract

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; the backlight assembly comprises a first flexible circuit board and a light-emitting element which is formed on the flexible circuit board and is electrically connected with the first flexible circuit board, an opening is formed in the frame body, and part of the first flexible circuit board is exposed out of the opening; the liquid crystal display module further comprises: a support member accommodated in the opening and fixed on a surface of the first flexible circuit board facing away from the light emitting element; and a shielding layer fixed on the frame body and shielding the opening. The liquid crystal display module provided by the application can emit light uniformly after being heated.

Description

Liquid crystal display module
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal display module.
Background
For the Note Book (NB) project where the flexible circuit board (Flexible Printed Circuit, FPC) is not folded back, the printed circuit board (Printed Circuit Board, PCB) needs to be locked to the tongue piece of the backlight metal frame by screws, and the tongue piece plays a role in supporting and fixing the PCB. The tongue piece is formed by punching holes on the back surface of the backlight metal frame, and obvious uneven luminescence can occur at the position corresponding to the hole of the tongue piece of the metal frame after RA test of the liquid crystal display module. The reason is that the light guide plate drives the FPC to shrink when low temperature, and the FPC bulges and deforms at the opening of the metal frame, and the luminous element LED and the light guide plate are dislocated, so that uneven luminescence is caused.
Disclosure of Invention
Therefore, the application provides a liquid crystal display module which can emit light uniformly even after being heated.
In order to solve the problems, the technical scheme provided by the 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; the backlight assembly comprises a first flexible circuit board and a light-emitting element which is formed on the flexible circuit board and is electrically connected with the first flexible circuit board, an opening is formed in the frame body, and part of the first flexible circuit board is exposed out of the opening; the liquid crystal display module further comprises:
a support member accommodated in the opening and fixed on a surface of the first flexible circuit board facing away from the light emitting element; a kind of electronic device with high-pressure air-conditioning system
And the shielding layer is fixed on the frame body and shields the opening.
In an alternative embodiment of the present application, an end of the supporting member facing away from the first flexible circuit board protrudes from the frame body.
In an optional embodiment of the present application, on a cross section perpendicular to the display panel and the backlight module, a thickness T of the support member is defined, and a thickness T1 of the frame where the opening is located, where the T and the T1 satisfy: T-T1 is more than or equal to 0.03 mm-0.05 mm.
In an alternative embodiment of the present application, said T1 further satisfies: t1 is more than or equal to 0.15mm and less than or equal to 0.25mm.
In an alternative embodiment of the present application, the support member includes an insulating material layer and an adhesive layer, the insulating material layer is fixed on the first flexible circuit board through the adhesive layer, and the shielding layer is in contact with the insulating material layer.
In an alternative embodiment of the present application, on a cross section perpendicular to the display panel and the backlight module, a thickness of the adhesive layer is defined as T2, and a thickness of the insulating material layer is defined as T3, where the T2 and the T3 satisfy: t2 is more than or equal to 0.03mm and less than or equal to 0.06mm, T3 is more than or equal to 0.1mm and less than or equal to 0.3mm.
In an alternative embodiment of the application, the support is a stiffening plate.
In an alternative embodiment of the present application, the shielding layer is a single-sided adhesive layer.
In an optional embodiment of the application, the backlight module further includes a light guide plate, a first reflecting sheet and a second reflecting sheet, where the light guide plate is located at one side of the light emitting element, the first reflecting sheet and the second reflecting sheet are both formed on the frame and the light guide plate, the first reflecting sheet is located at one end of the first flexible circuit board and faces the light emitting element, and the second reflecting sheet is located at one end of the light emitting element facing away from the first flexible circuit board.
In an alternative embodiment of the present application, the frame body includes a back frame, a middle frame, and a tongue piece, the opening is formed on the back frame, the middle frame is fixed on the back frame, and the tongue piece extends from one end of the back frame/the middle frame;
the display panel comprises an array substrate, a color film substrate, an integrated circuit, a hard circuit board and a second flexible circuit board, wherein the color film substrate is arranged opposite to the array substrate; a kind of electronic device with high-pressure air-conditioning system
The hard circuit board is fixed on the tongue piece, and is electrically connected with the integrated circuit through the second flexible circuit board and the wiring in the array substrate so as to drive the display panel to work.
According to the liquid crystal display module, the supporting piece is formed in the opening in the frame body, and the shielding layer capable of shielding the opening is formed on the frame body, so that the first flexible circuit board exposed out of the opening can be supported, the bulge deformation of the first flexible circuit board can be limited, the liquid crystal display module can emit light uniformly after being heated, and the display effect of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a liquid crystal display module according to a first embodiment of the present application.
Fig. 2 is a partial enlarged view of the liquid crystal display module shown in fig. 1.
Fig. 3 is a cross-sectional view of a liquid crystal display module according to a second embodiment of the application.
Fig. 4 is a partial enlarged view of the lcd module shown in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The present application may repeat reference numerals and/or letters in the various examples, and is for the purpose of simplicity and clarity, and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
According to the application, aiming at the technical problem of uneven light emission of the existing liquid crystal display module, the supporting piece is formed in the opening on the frame body, and the shielding layer capable of shielding the opening is formed on the frame body, so that the first flexible circuit board exposed out of the opening can be supported, the bulge deformation of the first flexible circuit board can be limited, the problem of uneven light emission of the liquid crystal display module after being heated can be solved, and the display effect of the display panel is improved.
Referring to fig. 1 to 4, the present application provides a liquid crystal display module 100, the liquid crystal display module 100 includes a display panel 120 and a backlight module 110, the display panel 120 is located above the backlight module 110, the backlight module 110 includes a frame 10 and a backlight assembly 20 fixed in the frame 10; the backlight assembly 20 includes a first flexible circuit board 22 and a light emitting element 21 formed on the flexible circuit board 22 and electrically connected to the first flexible circuit board 22, and the frame 10 is provided with an opening 111, and a portion of the first flexible circuit board 22 is exposed from the opening 111. The liquid crystal display module 100 further includes a support 30 and a shielding layer 40, the support 30 is accommodated in the opening 111 and is fixed on a surface of the first flexible circuit board 22 facing away from the light emitting element 21, and the shielding layer 40 is fixed on the frame 10 and shields the opening 111. The supporting member 30 and the shielding layer 40 cooperate with each other to support the first flexible circuit board 22 exposed from the opening, so as to limit the rising deformation of the first flexible circuit board 22, and further solve the problem of uneven light emission caused by the heated liquid crystal display module 100, so as to improve the display effect of the display panel 120.
The frame body 10 includes a back frame 11, a middle frame 12, and a tongue piece 13, the opening 111 is formed in the back frame 11, the middle frame 12 is fixed on the back frame 11, and the tongue piece 13 extends from one end of the back frame 11/the 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 vertically connected with the first middle frame portion 121, the second middle frame portion 122 is parallel to 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 vertically connected with the back frame 11.
In this embodiment, the first middle frame 121 is integrally formed with the second middle frame 122, and the first middle frame 121 is integrally formed with the back frame 11. In other embodiments, the first middle frame 121 and the second middle frame 122 and the connection between the first middle frame 121 and the back frame 11 may be made by mechanical structure, mortise and tenon structure, glue, etc.
In an alternative embodiment of the present application, the tongue 13 extends from the connection between the first middle frame 121 and the back frame 11. That is, the tongue piece 13 is integrally formed with the first middle frame 121 and the back frame 11.
The first middle frame 121, the second middle frame 122 and the back frame 11 form a receiving space L therebetween, and the backlight assembly 20 is at least partially received in the receiving space L and fixed to the second middle frame 122 and the back frame 11.
Specifically, the backlight assembly 20 includes the light emitting element 21, the first flexible circuit board 22, a light guide plate 23, a first reflection sheet 24, a second reflection sheet 25, and an optical functional film 26.
Specifically, the light emitting element 21 is accommodated in the accommodation 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 accommodated in the accommodation space L and fixed on a surface of the back frame 11 facing the accommodation space L. Wherein 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 adhered to the first flexible circuit board 22 by an adhesive 27, the light guide plate 23 is located on one side of the light emitting element 21, and an end of the adhesive 27 facing the light emitting element 21 is adhered to the light emitting element 21. Wherein the light guide plate 23 is used for converting light emitted from the light emitting element 21 at the side into a surface light source and making the emitted light uniform.
Specifically, the first reflecting sheet 24 is located between the light guide plate 23 and the back frame 11 and on one side of the first flexible circuit board 22 and the adhesive 27. Specifically, the opposite surfaces of the first reflecting sheet 24 are respectively contacted with the back frame 11 and the light guide plate 23. The first reflecting sheet 24 is used for reflecting the light exposed from the side surface of the light guide plate 23 facing the back frame 11 back to the light guide plate 23, so as to improve the light use efficiency. In this embodiment, the adhesive 27 is a lamp adhesive, and in other embodiments, the adhesive 27 is another adhesive other than the lamp adhesive.
Specifically, the second reflecting sheet 25 is located on the surface of the light guide plate 23 facing away from the first reflecting sheet 24 and on the surface of the light emitting element 21 facing away from the first flexible circuit board 22, and the surface of the second reflecting sheet 25 facing away from the light emitting element 21 is in contact with the surface of the second middle frame 122 facing the back frame 11. The second reflecting sheet 25 is used for reflecting light rays exposed from the side surface of the light guide plate 23, which is away from the back frame 11, back into the light guide plate 23, so as to improve the use efficiency of 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 alternative 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, where 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 plate 261 and the second diffusion plate 263 and diffuses, 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, so as to increase the brightness of the display panel 120. Of course, in other embodiments, the optical functional film 26 is not limited to a diffusion film and a brightness enhancement film, and may be designed according to practical situations.
In an alternative embodiment of the present application, an end of the supporting member 30 facing away from the first flexible circuit board 22 protrudes from the frame 10. Specifically, an end of the support member 30 facing away from the first flexible circuit board 22 protrudes from a surface of the back frame 11 facing away from the accommodating space L.
In an alternative embodiment of the present application, in a cross section perpendicular to the display panel 120 and the backlight module 110, a thickness T of the support member 30 is defined, and a thickness T1 of the back frame 11 where the opening 111 is located is defined, where the T and the T1 satisfy: T-T1 is more than or equal to 0.03 mm-0.05 mm.
In an alternative embodiment of the present application, said T1 further satisfies: t1 is more than or equal to 0.15mm and less than or equal to 0.25mm.
Referring to fig. 1 and 2, in a first embodiment of the present application, the supporting member 30 includes an insulating material layer 31 and an adhesive layer 32, the insulating material layer 31 is fixed on the first flexible circuit board 22 through the adhesive layer 32, and the shielding layer 40 is in contact with the insulating material layer 31.
In this embodiment, the adhesive layer 32 is a double-sided tape.
In an alternative embodiment of the present application, in a cross section perpendicular to the display panel 120 and the backlight module 110, the thickness of the adhesive layer 32 is defined as T2, and the thickness of the insulating material layer 31 is defined as T3, where the T2 and the T3 satisfy: t2 is more than or equal to 0.03mm and less than or equal to 0.06mm, T3 is more than or equal to 0.1mm and less than or equal to 0.3mm.
Referring to fig. 3 and 4, in a second embodiment of the present application, the supporting member 30 is a reinforcing plate. Specifically, the material of the support 30 is a reinforcing material such as polyimide or a steel sheet.
Specifically, the shielding layer 40 is a single-sided adhesive layer. Preferably, the shielding layer 40 is a single-sided tape. Of course, in other embodiments, the material of the shielding layer 40 is not limited to a single-sided adhesive material, and may be determined according to practical situations.
Referring to fig. 1 and 3, the display panel 120 includes an array substrate 51, a color film substrate 52 disposed opposite to the array substrate 51, a liquid crystal (not shown) formed between the array substrate 51 and the color film substrate 52, a first polarizer 53 formed on the array substrate 51, a second polarizer 54 formed on the color film substrate 52, an integrated circuit 55 formed on the array substrate 51, a hard circuit board 56, and a second flexible circuit board 57. The first polarizer 53 faces the second light enhancement sheet 264, and the second polarizer 54 faces away from the array substrate 51. The hard circuit board 56 is fixed on the tongue 13, and the hard 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 to drive the display panel 120 to work.
According to the liquid crystal display module, the supporting piece is formed in the opening on the frame body, and the shielding layer capable of shielding the opening is formed on the frame body, so that the first flexible circuit board exposed out of the opening can be supported, the bulge deformation of the first flexible circuit board can be limited, the liquid crystal display module can emit light uniformly after being heated, the display effect of the display panel is improved, smooth mass production of projects is ensured, and customer satisfaction is improved.
The above describes the liquid crystal display module provided by the embodiment of the present application in detail, and specific examples are applied to illustrate the principle and implementation of the present application, and the description of the above embodiment is only used to help understand the technical solution and core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (7)

1. The liquid crystal display module comprises a display panel and a backlight module, wherein the display panel is positioned above the backlight module, and the backlight module comprises a frame body and a backlight assembly fixed in the frame body; the backlight assembly comprises a first flexible circuit board and a light-emitting element which is formed on the first flexible circuit board and is electrically connected with the first flexible circuit board, an opening is formed in the frame body, and part of the first flexible circuit board is exposed out of the opening; the liquid crystal display module is characterized by further comprising:
a support member accommodated in the opening and fixed on a surface of the first flexible circuit board facing away from the light emitting element; a kind of electronic device with high-pressure air-conditioning system
A shielding layer fixed on the frame body and shielding the opening;
one end of the support piece, which is far away from the first flexible circuit board, protrudes out of the frame body;
the support piece comprises an insulating material layer and an adhesive layer, wherein the insulating material layer is fixed on the first flexible circuit board through the adhesive layer, and the shielding layer is in contact with the insulating material layer.
2. The liquid crystal display module of claim 1, wherein, on a cross section perpendicular to the display panel and the backlight module, a thickness of the supporting member is defined as T, a thickness of the frame where the opening is located is defined as T1, and then the T and the T1 satisfy: T-T1 is more than or equal to 0.03 mm-0.05 mm.
3. The liquid crystal display module of claim 2, wherein T1 further satisfies: t1 is more than or equal to 0.15mm and less than or equal to 0.25mm.
4. The liquid crystal display module of claim 1, wherein, in a cross section perpendicular to the display panel and the backlight module, a thickness of the adhesive layer is defined as T2, and a thickness of the insulating material layer is defined as T3, the T2 and the T3 satisfy: t2 is more than or equal to 0.03mm and less than or equal to 0.06mm, T3 is more than or equal to 0.1mm and less than or equal to 0.3mm.
5. A liquid crystal display module according to any one of claims 1 to 3, wherein the shielding layer is a single-sided adhesive layer.
6. The liquid crystal display module of claim 1, wherein the backlight module further comprises a light guide plate, a first reflecting sheet and a second reflecting sheet, the light guide plate is located at one side of the light emitting element, the first reflecting sheet and the second reflecting sheet are both formed on the frame and the light guide plate, the first reflecting sheet is located at one end of the first flexible circuit board and faces the light emitting element, and the second reflecting sheet is located at one end of the light emitting element facing away from the first flexible circuit board.
7. The liquid crystal display module as claimed in claim 6, wherein the frame body comprises a back frame, a middle frame and a tongue piece, the opening is formed on the back frame, the middle frame is fixed on the back frame, and the tongue piece extends from one end of the back frame/the middle frame;
the display panel comprises an array substrate, a color film substrate, an integrated circuit, a hard circuit board and a second flexible circuit board, wherein the color film substrate is arranged opposite to the array substrate; a kind of electronic device with high-pressure air-conditioning system
The hard circuit board is fixed on the tongue piece, and is electrically connected with the integrated circuit through the second flexible circuit board and the wiring in the array substrate so as to drive the display panel to work.
CN202210121807.5A 2022-02-09 2022-02-09 Liquid crystal display module Active CN114509896B (en)

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CN108319063A (en) * 2018-01-31 2018-07-24 广东欧珀移动通信有限公司 Electronic device and its display module, backlight module
CN110928041A (en) * 2019-11-22 2020-03-27 厦门天马微电子有限公司 Backlight module and 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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JPH06314139A (en) * 1993-04-30 1994-11-08 Toshiba Corp Portable electronic equipment
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CN108254973A (en) * 2018-01-31 2018-07-06 广东欧珀移动通信有限公司 Electronic device and its display module, backlight module
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