CN104267522B - Backlight module and liquid crystal display device - Google Patents

Backlight module and liquid crystal display device Download PDF

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Publication number
CN104267522B
CN104267522B CN201410508209.9A CN201410508209A CN104267522B CN 104267522 B CN104267522 B CN 104267522B CN 201410508209 A CN201410508209 A CN 201410508209A CN 104267522 B CN104267522 B CN 104267522B
Authority
CN
China
Prior art keywords
backboard
backlight module
liquid crystal
center
cushion block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410508209.9A
Other languages
Chinese (zh)
Other versions
CN104267522A (en
Inventor
萧宇均
阙成文
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.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201410508209.9A priority Critical patent/CN104267522B/en
Priority to PCT/CN2014/088152 priority patent/WO2016045147A1/en
Publication of CN104267522A publication Critical patent/CN104267522A/en
Application granted granted Critical
Publication of CN104267522B publication Critical patent/CN104267522B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317Intermediate frames, e.g. between backlight housing and front frame

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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)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a kind of backlight module, including backboard and the light guide plate and center that are arranged on the backboard, wherein, multiple cushion blocks are also equipped with backboard, the wherein one side of cushion block and the side wall of backboard are connected, and relative opposite side is pushed against with light guide plate to be connected, and a holding tank is further opened with cushion block;On the side wall of backboard a neck for being communicated to holding tank is offered corresponding to each cushion block;Center includes longitudinal bracing portion, and longitudinal bracing portion includes multiple interspersed tongues, and each interspersed tongue, which corresponds on each holding tank, the side wall of interspersed tongue, is provided with a snap fit;Center is assemblied in holding tank by the interspersed tongue, and snap fit is mutually clamped with neck.Invention additionally discloses a kind of liquid crystal display device for including the backlight module.The present invention efficiently reduces the border width of liquid crystal display module, is conducive to the design of narrow frame structure liquid crystal display device by the improvement for the fit structure that interfixed to backboard and center.

Description

Backlight module and liquid crystal display device
Technical field
The present invention relates to LCD Technology field, especially a kind of backlight module and the liquid comprising the backlight module Crystal device.
Background technology
Liquid crystal display (LCD) has the advantages that fuselage is thin, low in energy consumption, radiationless, is widely used, for example, moves Mobile phone, digital camera, computer, television screen etc..Liquid crystal display on existing market is largely backlight liquid Crystal display, including liquid crystal panel and backlight module, liquid crystal panel are oppositely arranged with backlight module, and backlight module, which is provided, shows light Source is to liquid crystal panel, so that liquid crystal panel shows image.In increasingly competitive monitor market, differentiation is designed to respectively Producer lifts one of important research direction of itself selling point, in existing product, common are slimming or narrow frame Design, the design can obtain profile more attractive in appearance, to attract the concern of consumer.
A kind of backlight module of the prior art as shown in Figure 1, including backboard 1 and be successively set on backboard 1 Reflector 2, light guide plate 3 and diaphragm group 4, include the center 5 for the cooperation that interfixes with backboard 1.The longitudinal bracing knot of center 5 Structure includes inwall 6 and outer wall 7, is formed between inwall 6 and outer wall 7 and neck 8 is provided with a groove, and outer wall 7.Backboard 1 Snap fit 9 is provided with the wall of side, by the way that the side wall of backboard 1 is inserted into foregoing groove, snap fit 9 is mutually clamped with neck 8, Realize that backboard 1 interfixes with center 5.In the backlight module of this structure, because the longitudinal support structure of center 5 is including interior Wall 6 and outer wall 7, the presence of outer wall 7 add the border width of liquid crystal display module, are unfavorable for the design of narrow frame structure.And And, in the structure, center 5 can carry out spacing to light guide plate 3 in a longitudinal direction, but light guide plate 3 is in a lateral direction It is spacing to also need to other position limiting structure part, increase the complexity of back light module unit structure.
The content of the invention
In view of the deficienciess of the prior art, the invention provides a kind of backlight module, by mutual with center to backboard The improvement of fixing and matching structure, efficiently reduces the border width of liquid crystal display module, is conducive to narrow frame structure liquid crystal The design of showing device.
In order to reach above-mentioned goal of the invention, present invention employs following technical scheme:
A kind of backlight module, including backboard and the light guide plate and center that are arranged on the backboard, wherein, on the backboard Be also equipped with multiple cushion blocks, the wherein one side of the cushion block is connected with the side wall of the backboard, relative opposite side with it is described Light guide plate, which is pushed against, to be connected, and a holding tank is further opened with the cushion block;Opened up on the side wall of the backboard corresponding to each cushion block There is a neck for being communicated to the holding tank;The center includes longitudinal bracing portion, and the longitudinal bracing portion includes multiple interspersed Tongue, each interspersed tongue, which corresponds on each holding tank, the side wall of the interspersed tongue, is provided with a snap fit;The center passes through described Interspersed tongue is assemblied in the holding tank, and the snap fit is mutually clamped with the neck.
Preferably, the cushion block is prepared by elastomeric material forms.
Preferably, the cushion block is connected by way of stickup with the side wall of the backboard.
Preferably, the center also includes transverse support portion, and the transverse support portion is mutually interconnected with the longitudinal bracing portion Connect, one end of the transverse support portion extends to concordant with the side wall of the backboard.
Preferably, optical diaphragm group is additionally provided with the light guide plate, the transverse support portion is pressed in the optical film Piece group.
Preferably, the transverse support portion presses the upper plane in the cushion block.
Preferably, a reflector is additionally provided between the backboard and the light guide plate.
Preferably, the center is prepared by plastic material forms.
Present invention also offers a kind of liquid crystal display device, including liquid crystal panel and backlight module, the liquid crystal panel with The backlight module is oppositely arranged, and the backlight module provides display light source to the liquid crystal panel, so that the liquid crystal panel Image is shown, wherein, the backlight module is foregoing backlight module.
Beneficial effect:
In backlight module provided in an embodiment of the present invention, by setting cushion block in the inner side of backboard side wall and being opened on cushion block If holding tank, the longitudinal bracing portion of center includes the interspersed tongue for being provided with snap fit, and being inserted into by interspersed tongue in holding tank makes snap fit It is mutually clamped with the neck on the wall of backboard side, realizes backboard and center secure fit.In the structure shown here, the longitudinal bracing portion of center A supporting walls are only needed, the border width of liquid crystal display module is efficiently reduced, are conducive to narrow frame structure liquid crystal display The design of device.It is relative due to the side wall connection of the wherein one side and backboard of cushion block while narrow frame design is realized Opposite side is pushed against with light guide plate to be connected, and light guide plate can be carried out in a lateral direction spacing.
Brief description of the drawings
Fig. 1 is a kind of structural representation of backlight module of prior art.
Fig. 2 is a kind of structural representation of liquid crystal display device provided in an embodiment of the present invention.
Fig. 3 is a kind of structural representation of backlight module provided in an embodiment of the present invention.
Fig. 4 is the profile after center assembling along XX lines such as the backlight module in Fig. 3.
Embodiment
In order to preferably illustrate the technical characterstic and structure of the present invention, with reference to embodiments and its accompanying drawing is retouched in detail State.
The structural representation for the liquid crystal display device that Fig. 2 provides for the present embodiment.As shown in Fig. 2 the liquid crystal display device Including liquid crystal panel 100 and backlight module 200, the liquid crystal panel 100 is oppositely arranged with the backlight module 200, the back of the body Optical mode group 200 provides display light source to the liquid crystal panel 100, so that the liquid crystal panel 100 shows image.
Wherein, refering to Fig. 3 and Fig. 4, backlight module 200 at least includes backboard 10 and the leaded light being arranged on the backboard 10 Plate 20 and center 30, wherein, multiple cushion blocks 40 are also equipped with the backboard 10, and (quantity of cushion block 40 is needed according to liquid crystal display The area of device carries out merely exemplary in appropriate selection, accompanying drawing be shown in which one), wherein the one of the cushion block 40 Side is connected with the side wall 11 of the backboard 10, and relative opposite side is pushed against with the light guide plate 20 to be connected, on the cushion block 40 It is further opened with a holding tank 41;One is offered corresponding to each cushion block 40 be communicated to the clamping on the side wall 11 of the backboard 10 The neck 12 of groove 41;The center 30 includes transverse support portion 31 and longitudinal bracing portion 32, the transverse support portion 31 and longitudinal direction Supporting part 32 is similar to vertically be connected with each other, and forms inverted "L" shaped structure.The longitudinal bracing portion 32 includes multiple interspersed tongues 33, each interspersed tongue 33, which corresponds on each holding tank 41, the side wall of the interspersed tongue 33, is provided with a snap fit 34, interts tongue 33 Both sides be respectively arranged with slot to make way 35;The center 30 is assemblied in the holding tank 41 by the interspersed tongue 33, described Snap fit 34 is mutually clamped with the neck 12.As shown in figure 4, the backlight module 200 also includes reflector 60 and optical diaphragm group 50, wherein reflector 60 is arranged between the backboard 10 and the light guide plate 20, and optical diaphragm group 50 is arranged at the leaded light On plate 20 (on the exiting surface for being located at light guide plate 20).
In the present embodiment, the cushion block 40 is prepared by elastomeric material forms, and the side that the cushion block 40 passes through stickup Formula and the side wall 11 of the backboard 10.The center 30 is prepared by plastic material to be formed.
As shown in figure 4, compared to Fig. 3, Fig. 4 shows the optical diaphragm group 50 on the exiting surface of light guide plate 20, in Frame 30 is assemblied in the holding tank 41 of cushion block 40 by interspersed tongue 33.In the present embodiment, when center 20 is inserted on backboard 10 Cushion block 40 after, snap fit 34 and neck 12, which are mutually clamped, prevents center 30 from being ejected from backboard 10, the transverse support portion of center 30 31 press in optical diaphragm group 50, light guide plate 20 are carried out in a longitudinal direction spacing;Meanwhile, transverse support portion 31 also press in The upper plane 42 of cushion block 40.Wherein the wherein side of cushion block 40 pushes against with the end face of light guide plate 20 and is connected, can be in horizontal direction On light guide plate 20 is carried out it is spacing.Further, one end of the transverse support portion 31 of center 30 extends to the side wall with backboard 10 11 is concordant, i.e., the end face of transverse support portion 31 is concordant with the outside of the side wall 11 of backboard 10.
In the backlight module that above example is provided, by setting cushion block in the inner side of backboard side wall and being opened on cushion block If holding tank, the longitudinal bracing portion of center includes the interspersed tongue for being provided with snap fit, and being inserted into by interspersed tongue in holding tank makes snap fit It is mutually clamped with the neck on the wall of backboard side, realizes backboard and center secure fit.In the structure shown here, the longitudinal bracing portion of center A supporting walls are only needed, the border width of liquid crystal display module is efficiently reduced, are conducive to narrow frame structure liquid crystal display The design of device.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Also there is other identical element in process, method, article or equipment including the key element.
Obviously, protection scope of the present invention is not limited to the embodiment of appeal, and those skilled in the art can To carry out various changes and modification without departing from the spirit and scope of the present invention to invention.So, if these of the present invention are repaiied Change and belong to modification within the scope of the claims in the present invention and its equivalent technologies, then the present invention be also intended to comprising these change and Including modification.

Claims (7)

1. a kind of backlight module, including backboard (10) and the light guide plate (20) and center (30) that are arranged on the backboard (10), Characterized in that, be also equipped with multiple cushion blocks (40) on the backboard (10), the wherein one side of the cushion block (40) with it is described Side wall (11) connection of backboard (10), relative opposite side is pushed against with the light guide plate (20) to be connected, on the cushion block (40) also Offer a holding tank (41);One is offered corresponding to each cushion block (40) be communicated to institute on the side wall (11) of the backboard (10) State the neck (12) of holding tank (41);The center (30) includes longitudinal bracing portion (32), and the longitudinal bracing portion (32) includes Multiple interspersed tongues (33), each interspersed tongue (33), which corresponds on each holding tank (41), the side wall of the interspersed tongue (33), to be set There is a snap fit (34);The center (30) is assemblied in the holding tank (41) by the interspersed tongue (33), the snap fit (34) it is mutually clamped with the neck (12);The center (30) also includes transverse support portion (31), the transverse support portion (31) it is connected with each other with the longitudinal bracing portion (32), one end of the transverse support portion (31) is extended to and the backboard (10) Side wall (11) it is concordant;The transverse support portion (31) presses the upper plane (42) in the cushion block (40).
2. backlight module according to claim 1, it is characterised in that the cushion block (40) is prepared by elastomeric material to be formed.
3. backlight module according to claim 1 or 2, it is characterised in that the cushion block (40) by way of stickup with Side wall (11) connection of the backboard (10).
4. backlight module according to claim 1, it is characterised in that be additionally provided with blooming piece on the light guide plate (20) Group (50), the transverse support portion (31) is pressed in the optical diaphragm group (50).
5. backlight module according to claim 1, it is characterised in that between the backboard (10) and the light guide plate (20) It is additionally provided with a reflector (60).
6. backlight module according to claim 1, it is characterised in that the center (30) is prepared by plastic material to be formed.
7. a kind of liquid crystal display device, including liquid crystal panel (100) and backlight module (200), the liquid crystal panel (100) and institute State backlight module (200) to be oppositely arranged, the backlight module (200) provides display light source and gives the liquid crystal panel (100), so that The liquid crystal panel (100) shows image, it is characterised in that the backlight module (200) is as described in claim 1-6 is any Backlight module.
CN201410508209.9A 2014-09-28 2014-09-28 Backlight module and liquid crystal display device Expired - Fee Related CN104267522B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410508209.9A CN104267522B (en) 2014-09-28 2014-09-28 Backlight module and liquid crystal display device
PCT/CN2014/088152 WO2016045147A1 (en) 2014-09-28 2014-10-08 Backlight module and liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410508209.9A CN104267522B (en) 2014-09-28 2014-09-28 Backlight module and liquid crystal display device

Publications (2)

Publication Number Publication Date
CN104267522A CN104267522A (en) 2015-01-07
CN104267522B true CN104267522B (en) 2017-07-25

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Country Status (2)

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CN (1) CN104267522B (en)
WO (1) WO2016045147A1 (en)

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