CN104806929A - Optical film locating structure for backlight module, backlight module and display - Google Patents

Optical film locating structure for backlight module, backlight module and display Download PDF

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Publication number
CN104806929A
CN104806929A CN201510173830.9A CN201510173830A CN104806929A CN 104806929 A CN104806929 A CN 104806929A CN 201510173830 A CN201510173830 A CN 201510173830A CN 104806929 A CN104806929 A CN 104806929A
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CN
China
Prior art keywords
blooming piece
backlight module
glue
thermal deformation
slide 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.)
Granted
Application number
CN201510173830.9A
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Chinese (zh)
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CN104806929B (en
Inventor
郭庆
周革革
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to CN201510173830.9A priority Critical patent/CN104806929B/en
Publication of CN104806929A publication Critical patent/CN104806929A/en
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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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

Abstract

The invention provides an optical film locating structure for a backlight module. The backlight module comprises a rubber frame and an optical film. The locating structure comprises a locating hole arranged in the edge of the optical film, a sliding block, and a thermal deformation glue. A locating hole in the sliding block facing to the optical film is provided with a locating column. A surface of the rubber frame facing to the optical film is provided with a limiting groove. The rubber frame is arranged on the circumference of the optical film. The sliding block is slidingly installed inside the limiting groove. The locating column passes through the locating hole. The thermal deformation glue is arranged on one side of the sliding block. The invention further provides the backlight module and a display.

Description

Backlight module optical film location structure, backlight module and display
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of backlight module optical film location structure, backlight module and display.
Background technology
At present, liquid crystal indicator has been widely used in various electronic product as the display unit of electronic equipment, and along with the development that electronic product is lightening, the frame of electronic equipment is designed to be more and more narrow.Backlight module is then a vitals in liquid crystal indicator, and the frame of backlight module also certainly will be more and more narrow.
Backlight module of the prior art includes glue frame, and light guide plate is surrounded by glue frame, and blooming piece is fixed on described light guide plate and glue frame by shading rubber belt.Because described blooming piece adopts PET (PET) material to make mostly, so need when structural design for blooming piece reserves certain expansion space.Headspace is larger, letter tolerance problems possibility occurs less; But meanwhile, blooming piece needs to carry out position to be fixed, avoid diaphragm assembling deviation, crooked and that cause light leak, diaphragm escape etc. are bad, and positioning gap is more little more not easily problems occurs.The mutual neutralization of fixed form needs of so reserved expansion space and blooming piece can reduce above-described problem and occur.
Summary of the invention
The object of the present invention is to provide a kind of backlight module optical film location structure and backlight module, can the expansion space ensureing blooming piece while blooming piece does not occur to offset ensured.
The present invention also provides a kind of display with described backlight module.
The invention provides a kind of backlight module optical film location structure, described backlight module comprises glue frame and blooming piece, described location structure comprises the locating hole being located at described blooming piece edge, slide block and thermal deformation glue, described slide block is provided with locating dowel towards the locating hole of blooming piece, the face towards described blooming piece of described glue frame is provided with stopper slot, described glue frame is positioned at described blooming piece periphery, described skid is loaded in described stopper slot, and described locating dowel is through described locating hole; Described thermal deformation mucilage binding is in described slide block side.
Wherein, described glue frame comprises sidewall, and the surface towards described blooming piece is the upper surface of sidewall, and described stopper slot is recessed in described upper surface.
Wherein, described slide block comprises slide body and is located at the described locating dowel on slide body one surface; What described slide body was slided is loaded in described stopper slot.
Wherein, the coefficient of expansion of described thermal deformation glue is identical with the thermal coefficient of expansion size of described blooming piece, and when blooming piece expands, thermal deformation glue shrinks; When described blooming piece shrinks, thermal deformation glue expands.
Wherein, described thermal deformation glue is identical with the hot expansibility of described blooming piece, and when blooming piece expands, thermal deformation glue expands; When described blooming piece shrinks, thermal deformation glue shrinks.
Wherein, described thermal deformation glue is fixed on the side near described glue frame on described slide block.
Wherein, described thermal deformation glue is fixed on the side away from described glue frame on described slide block.
Wherein, described blooming piece sides aligned parallel is also extended with Extendible flake away from blooming piece, and described locating hole is located on described Extendible flake, and described Extendible flake is arranged at above described stopper slot.
The present invention also provides a kind of backlight module, described backlight module comprises backboard, glue frame, light guide plate and blooming piece, described light guide plate and blooming piece are loaded in described backboard, described glue frame is loaded on described backboard periphery and around described light guide plate and blooming piece, described location structure comprises the locating hole being located at described blooming piece edge, slide block and thermal deformation glue, described slide block is provided with locating dowel towards the locating hole of blooming piece, the face towards described blooming piece of described glue frame is provided with stopper slot, described glue frame is positioned at described blooming piece periphery, described skid is loaded in described stopper slot, described locating dowel is through described locating hole, described thermal deformation mucilage binding is in described slide block side.
The present invention also provides a kind of display, described display comprises display floater and the backlight module as described in any one of claim 8-9, described display floater is located on described backlight module, and is fixed by double faced adhesive tape between described display floater and described blooming piece and glue frame.
Glue frame of the present invention is provided with slidably slide block, locating dowel on slide block is used for positioning optical diaphragm, and described slide block side is provided with thermal deformation glue, while described blooming piece deforms, described thermal deformation glue deforms equally, drives described slide block to move, and then ensures that the locating dowel on described slide block and the locating hole on described blooming piece keep holding location, and then ensure the location of described blooming piece, prevent described blooming piece from offseting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram with the backlight module plane of blooming piece location structure of the present invention.
Fig. 2 is the schematic cross-section with the backlight module of blooming piece location structure shown in Fig. 1.
Fig. 3 is the schematic cross-section of another embodiment of blooming piece location structure described in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the good embodiment of the present invention provides a kind of backlight module optical film location structure and backlight module.Described backlight module comprises backboard 11, glue frame 13, light guide plate 15 and blooming piece 17, and described light guide plate 15 and blooming piece 17 are loaded in described backboard 11 successively, and described glue frame 13 is loaded on described backboard 11 periphery and around described light guide plate 15 and blooming piece 17.
Described backboard 11 comprises base plate 111 and side plate 112, and described base plate 111 surrounds receiving space, for accommodating described glue frame 13, light guide plate 15 and blooming piece 17 with described side plate 112.Backlight module also comprises reflecting piece 19, and described reflecting piece 19 is loaded between base plate 111 and described light guide plate 15.
In the present embodiment, described location structure comprises the locating hole 172 being located at described blooming piece 17 edge, slide block 18 and thermal deformation glue 20.Described slide block 18 is provided with locating dowel 182 towards the locating hole 172 of blooming piece 17.The face towards described blooming piece 17 of described glue frame 13 is provided with stopper slot 132.Described glue frame 13 is positioned at described blooming piece 17 periphery, and described slide block 18 slides and is loaded in described stopper slot 132, and described locating dowel 182 is through described locating hole 172; Described thermal deformation glue 20 is loaded on described slide block 18 side.
Further, described glue frame 13 comprises sidewall, and the surface towards described blooming piece 17 is the upper surface 131 of sidewall, and described stopper slot 132 is opened on described cascaded surface 131.Described blooming piece 17 sides aligned parallel is also extended with Extendible flake 171 away from blooming piece, and described locating hole 172 is located on described Extendible flake 171, and described Extendible flake 171 is arranged at above described stopper slot 132.
Further, described slide block 18 comprises slide body 181 and is located at the described locating dowel 182 on slide body 181 1 surface; What described slide body 181 was slided is loaded in described stopper slot 132.Described locating dowel 182 is vertical and extend away from described upper surface direction.
In first embodiment of the invention, the coefficient of expansion of described thermal deformation glue 20 is identical with the thermal coefficient of expansion size of described blooming piece 17, and when blooming piece 17 expands, thermal deformation glue 20 shrinks; When described blooming piece 17 shrinks, thermal deformation glue 20 expands.Further, described thermal deformation glue 20 is fixed on the side near described glue frame 13 on described slide block 18.When described backlight module lamp source point is bright be heated time, described blooming piece 17 can expand, namely expand to non-light incidence side from light inlet side, pull described slide block 18 to slide to described glue frame 13 direction simultaneously, so described blooming piece 17 reduces with the distance of the sidewall of described glue frame 13; Described thermal deformation glue 20 collecting is simultaneously reduced, the mobile of slide block 18 ensures that the locating dowel on described slide block 18 182 keeps holding location with the locating hole 172 on described blooming piece 17, and then ensure the location of described blooming piece, prevent described blooming piece from offseting.On the contrary, when blooming piece 17 shrinks, described thermal deformation glue 20 expands, same ensure described locating dowel with tell the position of locating hole, prevent described blooming piece from offseting.
Refer to Fig. 3, in the second embodiment of the present invention, with the first embodiment unlike, described thermal deformation glue 20 is identical with the hot expansibility of described blooming piece 17, and when blooming piece 17 expands, thermal deformation glue 20 expands; When described blooming piece 17 shrinks, thermal deformation glue 20 shrinks.Further, described thermal deformation glue 20 is fixed on the side away from described blooming piece 17 on described slide block 18.When described backlight module lamp source point is bright be heated time, described blooming piece 17 can expand, namely expand to non-light incidence side from light inlet side, pull described slide block 18 to slide to described glue frame 13 direction simultaneously, so described blooming piece 17 reduces with the distance of the sidewall of described glue frame 13; Described thermal deformation glue 20 expands and becomes large simultaneously, and the mobile of slide block ensures that the locating dowel on described slide block 18 182 keeps holding location with the locating hole 172 on described blooming piece 17, and then ensures the location of described blooming piece, prevents described blooming piece from offseting.On the contrary, when blooming piece 17 shrinks, described thermal deformation glue 20 shrinks, same ensure described locating dowel with tell the position of locating hole, prevent described blooming piece from offseting.
The present invention also provides a kind of display, and described display comprises display floater and above-described backlight module, and described display floater is located on described backlight module, and is fixed by double faced adhesive tape between described display floater and described blooming piece and glue frame.
Glue frame of the present invention is provided with slidably slide block, locating dowel on slide block is used for positioning optical diaphragm, and described slide block side is provided with thermal deformation glue, while described blooming piece deforms, described thermal deformation glue deforms equally, drives described slide block to move, and then ensures that the locating dowel on described slide block and the locating hole on described blooming piece keep holding location, and then ensure the location of described blooming piece, prevent described blooming piece from offseting.
Above disclosedly be only present pre-ferred embodiments, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.

Claims (10)

1. a backlight module optical film location structure, described backlight module comprises glue frame and blooming piece, it is characterized in that, described location structure comprises the locating hole being located at described blooming piece edge, slide block and thermal deformation glue, described slide block is provided with locating dowel towards the locating hole of blooming piece, the face towards described blooming piece of described glue frame is provided with stopper slot, described glue frame is positioned at described blooming piece periphery, described skid is loaded in described stopper slot, and described locating dowel is through described locating hole; Described thermal deformation mucilage binding is in described slide block side.
2. backlight module optical film location structure as claimed in claim 1, it is characterized in that, described glue frame comprises sidewall, and the surface towards described blooming piece is the upper surface of sidewall, and described stopper slot is recessed on described upper surface.
3. backlight module optical film location structure as claimed in claim 1, it is characterized in that, described slide block comprises slide body and is located at the described locating dowel on slide body one surface; What described slide body was slided is loaded in described stopper slot.
4. backlight module optical film location structure as claimed in claim 3, it is characterized in that, the coefficient of expansion of described thermal deformation glue is identical with the thermal coefficient of expansion size of described blooming piece, and when blooming piece expands, thermal deformation glue shrinks; When described blooming piece shrinks, thermal deformation glue expands.
5. backlight module optical film location structure as claimed in claim 3, it is characterized in that, described thermal deformation glue is identical with the hot expansibility of described blooming piece, and when blooming piece expands, thermal deformation glue expands; When described blooming piece shrinks, thermal deformation glue shrinks.
6. backlight module optical film location structure as claimed in claim 4, is characterized in that, described thermal deformation glue is fixed on the side near described glue frame on described slide block.
7. backlight module optical film location structure as claimed in claim 5, it is characterized in that, described thermal deformation glue is fixed on the side away from described glue frame on described slide block.
8. backlight module optical film location structure as claimed in claim 2, it is characterized in that, described blooming piece sides aligned parallel is also extended with Extendible flake away from blooming piece, and described locating hole is located on described Extendible flake, and described Extendible flake is arranged at above described stopper slot.
9. a backlight module, described backlight module comprises backboard, glue frame, light guide plate and blooming piece, described light guide plate and blooming piece are loaded in described backboard, described glue frame is loaded on described backboard periphery and around described light guide plate and blooming piece, it is characterized in that, described location structure comprises the locating hole being located at described blooming piece edge, slide block and thermal deformation glue, described slide block is provided with locating dowel towards the locating hole of blooming piece, the face towards described blooming piece of described glue frame is provided with stopper slot, described glue frame is positioned at described blooming piece periphery, described skid is loaded in described stopper slot, described locating dowel is through described locating hole, described thermal deformation mucilage binding is in described slide block side.
10. a display, it is characterized in that, described display comprises display floater and the backlight module as described in any one of claim 8-9, and described display floater is located on described backlight module, and is fixed by double faced adhesive tape between described display floater and described blooming piece and glue frame.
CN201510173830.9A 2015-04-14 2015-04-14 Backlight module optical film location structure, backlight module and display Active CN104806929B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105629573A (en) * 2016-03-08 2016-06-01 昆山龙腾光电有限公司 Backlight module and liquid crystal display device
CN106371249A (en) * 2016-11-29 2017-02-01 青岛海信电器股份有限公司 Straight down type backlight module and liquid crystal display device
CN106681053A (en) * 2017-01-03 2017-05-17 京东方科技集团股份有限公司 Backlight module and liquid crystal display device
CN107924078A (en) * 2015-08-31 2018-04-17 堺显示器制品株式会社 Display device
CN108037619A (en) * 2018-01-25 2018-05-15 惠州市华星光电技术有限公司 Backlight module and liquid crystal display
CN108803105A (en) * 2017-05-02 2018-11-13 京东方科技集团股份有限公司 A kind of backboard, back board module, backlight module and display module
CN110488537A (en) * 2019-08-27 2019-11-22 深圳市泰坦士科技有限公司 A kind of backlight module
CN110570766A (en) * 2019-09-06 2019-12-13 厦门天马微电子有限公司 Backlight module and display device
CN110632791A (en) * 2019-08-27 2019-12-31 武汉华星光电技术有限公司 Backlight module and liquid crystal display device

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Publication number Priority date Publication date Assignee Title
CN110596955A (en) * 2019-09-25 2019-12-20 北京京东方专用显示科技有限公司 Liquid crystal display device, backlight module and preparation method of backlight module

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CN103090323A (en) * 2013-01-31 2013-05-08 深圳市华星光电技术有限公司 Diaphragm positioning structure and backlight module thereof
CN103982868A (en) * 2014-04-30 2014-08-13 合肥京东方显示光源有限公司 Self-buffering element and preparation method thereof as well as backlight module and display device

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CN101866029A (en) * 2010-06-09 2010-10-20 宁波激智新材料科技有限公司 Deformation-resistant optics reflecting film, liquid crystal display device and LED lighting equipment
CN102494277A (en) * 2011-12-05 2012-06-13 深圳市华星光电技术有限公司 Backlight module and liquid crystal display (LCD) device thereof
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107924078A (en) * 2015-08-31 2018-04-17 堺显示器制品株式会社 Display device
CN105629573A (en) * 2016-03-08 2016-06-01 昆山龙腾光电有限公司 Backlight module and liquid crystal display device
CN105629573B (en) * 2016-03-08 2018-09-18 昆山龙腾光电有限公司 Backlight module and liquid crystal display device
CN106371249A (en) * 2016-11-29 2017-02-01 青岛海信电器股份有限公司 Straight down type backlight module and liquid crystal display device
CN106371249B (en) * 2016-11-29 2019-11-08 青岛海信电器股份有限公司 A kind of down straight aphototropism mode set and liquid crystal display device
CN106681053A (en) * 2017-01-03 2017-05-17 京东方科技集团股份有限公司 Backlight module and liquid crystal display device
CN108803105A (en) * 2017-05-02 2018-11-13 京东方科技集团股份有限公司 A kind of backboard, back board module, backlight module and display module
CN108037619A (en) * 2018-01-25 2018-05-15 惠州市华星光电技术有限公司 Backlight module and liquid crystal display
CN110488537A (en) * 2019-08-27 2019-11-22 深圳市泰坦士科技有限公司 A kind of backlight module
CN110632791A (en) * 2019-08-27 2019-12-31 武汉华星光电技术有限公司 Backlight module and liquid crystal display device
CN110570766A (en) * 2019-09-06 2019-12-13 厦门天马微电子有限公司 Backlight module and display device

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