CN104267522A - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN104267522A CN104267522A CN201410508209.9A CN201410508209A CN104267522A CN 104267522 A CN104267522 A CN 104267522A CN 201410508209 A CN201410508209 A CN 201410508209A CN 104267522 A CN104267522 A CN 104267522A
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- CN
- China
- Prior art keywords
- backlight module
- cushion block
- liquid crystal
- backboard
- light guide
- 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.)
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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
- G02F1/133308—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
- G02F1/1335—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
- 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
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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)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a backlight module which comprises a back plate, a light guide plate and a middle frame, wherein the light guide plate and the middle frame are arranged on the back plate. A plurality of cushion blocks are assembled on the back plate, one side of each cushion block is connected with the side wall of the back plate, the opposite other side of each cushion block is connected with the light guide plate in an abutted manner, a clamping groove is formed in each cushion block, a fastening groove corresponding to each cushion block is formed in the side wall of the back plate and communicated with the clamping groove, the middle frame comprises a longitudinal support, the longitudinal support comprises a plurality of crossing bolts, each crossing bolt corresponds to one clamping groove, a fastening hook is arranged on the side wall of each crossing bolt, the middle frame is assembled in the clamping grooves, and the fastening hooks and the fastening grooves are mutually fastened. The invention further discloses a liquid crystal display device comprising the backlight module. By improving the fixed matching structure of the back plate and the middle frame, the border width of a liquid crystal display module is effectively decreased, and design of the liquid crystal display device with a narrow frame structure is facilitated.
Description
Technical field
The present invention relates to LCD Technology field, especially a kind of backlight module and comprise the liquid crystal indicator of this backlight module.
Background technology
Liquid crystal display (LCD) has the advantages such as fuselage is thin, low in energy consumption, radiationless, is widely used, such as mobile phone, digital camera, computing machine, television screen etc.Liquid crystal display major part on existing market is backlight liquid crystal display, and comprise liquid crystal panel and backlight module, liquid crystal panel and backlight module are oppositely arranged, and backlight module provides display light source to liquid crystal panel, to make liquid crystal panel show image.In increasingly competitive monitor market, differentiation design becomes each producer and promotes one of important research direction of self selling point, in existing product, common are slimming or narrow frame design, this design can obtain profile comparatively attractive in appearance, to attract the concern of consumer.
The backlight module of the prior art of one as shown in Figure 1, comprises backboard 1 and is successively set on reflector 2, light guide plate 3 and the diaphragm group 4 on backboard 1, also comprises the center 5 coordinated that to interfix with backboard 1.The longitudinal support structure of center 5 comprises inwall 6 and outer wall 7, forms a groove, and outer wall 7 is provided with draw-in groove 8 between inwall 6 and outer wall 7.The sidewall of backboard 1 being provided with snap fit 9, by being inserted in aforesaid groove by the sidewall of backboard 1, snap fit 9 being engaged mutually with draw-in groove 8, realize backboard 1 and interfix with center 5.In the backlight module of this structure, the longitudinal support structure due to center 5 comprises inwall 6 and outer wall 7, and the existence of outer wall 7 adds the border width of liquid crystal display module, is unfavorable for the design of narrow border structure.Further, in this structure, center 5 can carry out spacing to light guide plate 3 in a longitudinal direction, but light guide plate 3 in a lateral direction spacing also needs other position limiting structure part, increases the complicacy of back light module unit structure.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of backlight module, by the improvement of the fit structure that interfixes to backboard and center, efficiently reduce the border width of liquid crystal display module, be conducive to the design of narrow border structure liquid crystal indicator.
In order to reach above-mentioned goal of the invention, present invention employs following technical scheme:
A kind of backlight module, the light guide plate comprising backboard and be arranged on this backboard and center, wherein, described backboard is also equipped with multiple cushion block, a wherein side of described cushion block is connected with the sidewall of described backboard, relative opposite side pushes against with described light guide plate and is connected, and described cushion block also offers a holding tank; The sidewall of described backboard corresponds to each cushion block and offer the draw-in groove that is communicated to described holding tank; Described center comprises longitudinal bracing portion, and described longitudinal bracing portion comprises multiple interspersed tongue, and each interspersed tongue corresponds to each holding tank, and the sidewall of described interspersed tongue is provided with a snap fit; Described center is assemblied in described holding tank by described interspersed tongue, and described snap fit engages mutually with described draw-in groove.
Preferably, described cushion block is formed by resilient material preparation.
Preferably, described cushion block is connected with the sidewall of described backboard by the mode of pasting.
Preferably, described center also comprises transverse support portion, and described transverse support portion and described longitudinal bracing portion are interconnected, and one end of described transverse support portion extends to concordant with the sidewall of described backboard.
Preferably, described light guide plate is also provided with optical diaphragm group, described transverse support portion is pressed in described optical diaphragm group.
Preferably, described transverse support portion presses the upper plane in described cushion block.
Preferably, a reflector is also provided with between described backboard and described light guide plate.
Preferably, described center is formed by plastic material preparation.
Present invention also offers a kind of liquid crystal indicator, comprise liquid crystal panel and backlight module, described liquid crystal panel and described backlight module are oppositely arranged, described backlight module provides display light source to described liquid crystal panel, to make described liquid crystal panel show image, wherein, described backlight module is aforesaid backlight module.
Beneficial effect:
In the backlight module that the embodiment of the present invention provides, by arranging cushion block in the inner side of backboard sidewall and offer holding tank on cushion block, the longitudinal bracing portion of center comprises the interspersed tongue being provided with snap fit, being inserted in holding tank by interspersed tongue makes snap fit mutually engage with the draw-in groove on backboard sidewall, realizes backboard and center secure fit.In the structure shown here, the longitudinal bracing portion of center only needs a supporting walls, efficiently reduces the border width of liquid crystal display module, is conducive to the design of narrow border structure liquid crystal indicator.While realizing narrow frame design, because a wherein side of cushion block is connected with the sidewall of backboard, relative opposite side pushes against with light guide plate and is connected, and can carry out spacing to light guide plate in a lateral direction.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of backlight module of prior art.
Fig. 2 is the structural representation of a kind of liquid crystal indicator that the embodiment of the present invention provides.
Fig. 3 is the structural representation of a kind of backlight module that the embodiment of the present invention provides.
Fig. 4 is as the sectional view along XX line after center assembling of the backlight module in Fig. 3.
Embodiment
In order to set forth technical characterstic of the present invention and structure better, be described in detail below in conjunction with embodiment and accompanying drawing thereof.
The structural representation of the liquid crystal indicator that Fig. 2 provides for the present embodiment.As shown in Figure 2, this liquid crystal indicator comprises liquid crystal panel 100 and backlight module 200, described liquid crystal panel 100 is oppositely arranged with described backlight module 200, and described backlight module 200 provides display light source to described liquid crystal panel 100, to make described liquid crystal panel 100 show image.
Wherein, consult Fig. 3 and Fig. 4, backlight module 200 at least comprises backboard 10 and the light guide plate 20 that is arranged on this backboard 10 and center 30, wherein, (number needs of cushion block 40 will carry out suitable selection according to the area of liquid crystal indicator described backboard 30 to be also equipped with multiple cushion block 40, only exemplaryly in accompanying drawing show one of them), a wherein side of described cushion block 40 is connected with the sidewall 11 of described backboard 10, relative opposite side pushes against with described light guide plate 20 and is connected, and described cushion block 40 also offers a holding tank 41; The sidewall 11 of described backboard 10 corresponds to each cushion block 40 and offer the draw-in groove 12 that is communicated to described holding tank 41; Described center 30 comprises transverse support portion 31 and longitudinal bracing portion 32, and described transverse support portion 31 is similar to longitudinal bracing portion 32 and is vertically interconnected, and forms inverted "L" shaped structure.Described longitudinal bracing portion 32 comprises multiple interspersed tongue 33, and each interspersed tongue 33 corresponds to each holding tank 41, and the sidewall of described interspersed tongue 33 is provided with a snap fit 34, and the both sides of interspersed tongue 33 are respectively arranged with slot to make way 35; Described center 30 is assemblied in described holding tank 41 by described interspersed tongue 33, and described snap fit 34 engages mutually with described draw-in groove 12.As shown in Figure 4, this backlight module 200 also comprises reflector 60 and optical diaphragm group 50, wherein reflector 60 is arranged between described backboard 10 and described light guide plate 20, and optical diaphragm group 50 is arranged in described light guide plate 20 and (is positioned on the exiting surface of light guide plate 20).
In the present embodiment, described cushion block 40 is formed by resilient material preparation, and the mode of described cushion block 40 by stickup and the sidewall 11 of described backboard 10.Described center 30 is formed by plastic material preparation.
As shown in Figure 4, show the optical diaphragm group 50 on the exiting surface being positioned at light guide plate 20 compared to Fig. 3, Fig. 4, center 30 is assemblied in the holding tank 41 of cushion block 40 by interspersed tongue 33.In the present embodiment, be inserted into the cushion block 40 on backboard 10 when center 20 after, snap fit 34 and draw-in groove 12 mutually engage and prevent center 30 from ejecting from backboard 10, and the transverse support portion 31 of center 30 is pressed in optical diaphragm group 50, carries out spacing in a longitudinal direction to light guide plate 20; Meanwhile, transverse support portion 31 also presses the upper plane 42 in 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, and can carry out spacing to light guide plate 20 in a lateral direction.Further, one end of the transverse support portion 31 of center 30 extends to concordant with the sidewall 11 of backboard 10, and namely the end face of transverse support portion 31 is concordant with the outside of the sidewall 11 of backboard 10.
In the backlight module that above embodiment provides, by arranging cushion block in the inner side of backboard sidewall and offer holding tank on cushion block, the longitudinal bracing portion of center comprises the interspersed tongue being provided with snap fit, being inserted in holding tank by interspersed tongue makes snap fit mutually engage with the draw-in groove on backboard sidewall, realizes backboard and center secure fit.In the structure shown here, the longitudinal bracing portion of center only needs a supporting walls, efficiently reduces the border width of liquid crystal display module, is conducive to the design of narrow border structure liquid crystal indicator.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Obviously, protection scope of the present invention is not limited to the embodiment of appeal, and those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a backlight module, the light guide plate (20) comprising backboard (10) and be arranged on this backboard (10) and center (30), it is characterized in that, described backboard (30) is also equipped with multiple cushion block (40), a wherein side of described cushion block (40) is connected with the sidewall (11) of described backboard (10), relative opposite side pushes against with described light guide plate (20) and is connected, and described cushion block (40) also offers a holding tank (41); Upper each cushion block (40) that corresponds to of the sidewall (11) of described backboard (10) offers the draw-in groove (12) that is communicated to described holding tank (41); Described center (30) comprises longitudinal bracing portion (32), described longitudinal bracing portion (32) comprises multiple interspersed tongue (33), each interspersed tongue (33), corresponding to each holding tank (41), the sidewall of described interspersed tongue (33) is provided with a snap fit (34); Described center (30) is assemblied in described holding tank (41) by described interspersed tongue (33), and described snap fit (34) engages mutually with described draw-in groove (12).
2. backlight module according to claim 1, is characterized in that, described cushion block (40) is formed by resilient material preparation.
3. backlight module according to claim 1 and 2, is characterized in that, described cushion block (40) is connected with the sidewall (11) of described backboard (10) by the mode of pasting.
4. backlight module according to claim 1, it is characterized in that, described center (30) also comprises transverse support portion (31), described transverse support portion (31) and described longitudinal bracing portion (32) are interconnected, and one end of described transverse support portion (31) extends to concordant with the sidewall of described backboard (10) (11).
5. backlight module according to claim 4, it is characterized in that, described light guide plate (20) is also provided with optical diaphragm group (50), described transverse support portion (31) is pressed in described optical diaphragm group (50).
6. the backlight module according to claim 4 or 5, is characterized in that, described transverse support portion (31) presses the upper plane (42) in described cushion block (40).
7. backlight module according to claim 1, is characterized in that, is also provided with a reflector (60) between described backboard (10) and described light guide plate (20).
8. backlight module according to claim 1, is characterized in that, described center (30) is formed by plastic material preparation.
9. a liquid crystal indicator, comprise liquid crystal panel (100) and backlight module (200), described liquid crystal panel (100) and described backlight module (200) are oppositely arranged, described backlight module (200) provides display light source to described liquid crystal panel (100), to make described liquid crystal panel (100) show image, it is characterized in that, described backlight module (200) be as arbitrary in claim 1-8 as described in backlight module.
Priority Applications (2)
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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 |
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CN201410508209.9A CN104267522B (en) | 2014-09-28 | 2014-09-28 | Backlight module and liquid crystal display device |
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CN104267522A true CN104267522A (en) | 2015-01-07 |
CN104267522B CN104267522B (en) | 2017-07-25 |
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WO (1) | WO2016045147A1 (en) |
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CN104950498A (en) * | 2015-06-29 | 2015-09-30 | 青岛海信电器股份有限公司 | Display device and glue frame and backboard for display device |
CN105068318A (en) * | 2015-09-18 | 2015-11-18 | 合肥京东方显示光源有限公司 | Backlight module and display device |
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