CN100403114C - Backlight mould set and liquid crystal display device using the backlight mould set - Google Patents
Backlight mould set and liquid crystal display device using the backlight mould set Download PDFInfo
- Publication number
- CN100403114C CN100403114C CNB2005100365764A CN200510036576A CN100403114C CN 100403114 C CN100403114 C CN 100403114C CN B2005100365764 A CNB2005100365764 A CN B2005100365764A CN 200510036576 A CN200510036576 A CN 200510036576A CN 100403114 C CN100403114 C CN 100403114C
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- China
- Prior art keywords
- framework
- blooming piece
- flexure strip
- projection wall
- module backlight
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Abstract
A back light module is prepared as setting a side wall on the first frame being buckled up coordinately with the second frame to form a containing space for containing light guide plate and optical diaphragm, setting at least one elastic plate on side wall in order to fix optical diaphragm.
Description
[technical field]
The present invention relates to the liquid crystal indicator of a kind of module backlight and this module backlight of application.
[background technology]
Liquid crystal indicator generally includes the liquid crystal panel backlight module and is used for fixing this liquid crystal panel and the housing of this module backlight.Module backlight mainly comprises a light source one light guide plate and a framework.Wherein, this light guide plate comprises at least one incidence surface, and contiguous this incidence surface of this light source is provided with, and this framework is in order to carry above-mentioned light guide plate and light source.In addition, the effect that presents for the gray scale of promoting module backlight, and then improve the display quality of liquid crystal indicator, can above light guide plate, dispose one or more blooming piece.
Seeing also Fig. 1, is the synoptic diagram after a kind of module backlight 10 assembling of prior art.See also Fig. 2, be the sectional view of Fig. 1 along II-I I, this light guide plate 13 is arranged in this framework 12, the incidence surface setting of these light source 15 contiguous these light guide plate 13, this reflector plate 14 is arranged on this light guide plate 13 belows, this blooming piece 11 is arranged on this light guide plate 13 tops, and this framework 12 is provided with inwardly outstanding projection wall 121 along this frame wall 16, and it is the spacing design to this blooming piece 11.
Yet, consider the heat expansion problem of blooming piece 11, usually can reserve some tolerance clearances 122 between the blooming piece 11 of the superiors and this projection wall 121, this gap tolerance 122 easily causes blooming piece to produce shift phenomenon, and, when temperature reaches the temperature of blooming piece 11 buckling deformations, existence because of this tolerance clearance 122, this projection wall 121 can't effectively be fixed this blooming piece 11, buckling deformation can take place and cause light leakage phenomena in blooming piece 11, light leakage phenomena can make screen produce bright uneven zone, thereby has reduced display effect.
[summary of the invention]
In order to solve the problem of above-mentioned blooming piece heat expansion and light leak, the module backlight that is necessary to provide a kind of effectively fixed optics diaphragm and leaves the heat expansion space for blooming piece.
A kind of liquid crystal indicator of using above-mentioned module backlight also is provided.
One embodiment solves this technical problem the technical scheme that is adopted: a kind of module backlight is provided, comprise a blooming piece, a light guide plate, one first framework and second framework that cooperates with first framework, this first framework comprises at least one sidewall, this first framework and second framework are clasped and form a receiving space to accommodate this light guide plate and this blooming piece, wherein, this sidewall is provided with at least one flexure strip that is used for fixing this blooming piece, and this flexure strip and this first framework are one-body molded.
One embodiment solves this technical problem the technical scheme that is adopted: a kind of liquid crystal indicator is provided, comprise a liquid crystal panel, one housing and a module backlight, this module backlight comprises a blooming piece, one light guide plate, one first framework and second framework that cooperates with first framework, this first framework comprises at least one sidewall, this first framework and second framework are clasped and form a receiving space to accommodate this light guide plate and this blooming piece, wherein, this sidewall is provided with at least one flexure strip that is used for fixing this blooming piece, and this flexure strip and this first framework are one-body molded.
Compared with prior art, module backlight of the present invention and liquid crystal indicator are provided with the flexure strip that is used for fixing this blooming piece because of this first frame side wall, can when leaving certain space, effectively fix this blooming piece for the heat expansion of this blooming piece, thereby can prevent because of blooming piece produces the light leakage phenomena that skew and buckling deformation produce, thereby make screen intensity even.
[description of drawings]
Fig. 1 is the synoptic diagram after the prior art module assembling backlight.
Fig. 2 is the schematic cross-section along line I I-I I shown in Figure 1.
Fig. 3 is the three-dimensional exploded view of the module backlight of first embodiment of the invention.
Fig. 4 is the partial enlarged drawing of the I V part of module backlight shown in Figure 3.
Fig. 5 is the stereographic map after module backlight shown in Figure 3 is assembled.
Fig. 6 is a module backlight shown in Figure 5 sectional view along VI-VI.
Fig. 7 is the partial enlarged drawing of the module backlight of second embodiment.
Fig. 8 is the three-dimensional exploded view of liquid crystal indicator of the present invention.
[embodiment]
Seeing also Fig. 3, is the preceding structural representation of module backlight 200 assemblings of first embodiment.This module 200 backlight comprises blooming piece 210, one first framework 260, second framework 270, a light guide plate 230, a reflector plate 240 and a light source 250, this first framework 260 is generally the glue frame, this second framework 270 is generally chase, this first framework 260 is clasped with this second framework 270, form a receiving space (figure does not show), to accommodate this light guide plate 230, reflector plate 240, light source 250 and blooming piece 210.This light source 250 be generally cold cathode fluorescent tube (Cold Cathode FluorescentLamp, CCFL), this light guide plate 230 comprises at least one incidence surface (indicate), this blooming piece 210 generally includes blast sheet, diffusion sheet.
This first framework 260 comprises a plurality of sidewalls 266, and the sidewall 266 of this first framework 260 comprises a plurality of inwardly outstanding and projection walls 261 substantially parallel with this blooming piece, and these projection wall 261 continuous distribution are on these first framework, 260 each sidewalls 266.The sidewall 266 of this first framework 260 outwards is provided with a plurality of projections 262, the sidewall 276 of this second framework 270 is provided with a plurality of bayonet sockets 272, this bayonet socket 272 is corresponding with the projection 262 of this first framework 260, to realize being clasped of this first framework 260 and this second framework 270.
Seeing also Fig. 4, is IV enlarged diagram partly shown in Figure 3.The marginal portion of this projection wall 261 is provided with an opening 2611 and a flexure strip 2612, this flexure strip 2612 is an outstanding downwards arc-like sheet, be positioned at this and open 2611 the outside, and its two ends all are connected with this projection wall 261, this flexure strip 2612, open 2611, this projection wall 261 and this first framework 260 be one-body molded, this is set, and to open 2611 purpose be for the ease of this flexure strip moulding.
See also Fig. 5, it is the stereographic map after these module 200 assemblings backlight, this module 200 backlight is assembled in the following order: this reflector plate 240 is arranged on the bottom surface of this second framework 270, this light guide plate 230 is arranged on this reflector plate 240 tops, the incidence surface setting of these light source 250 contiguous these light guide plate 230, this blooming piece 210 is arranged on this light guide plate 230 tops, and this first framework 260 is clasped with this second framework 270, makes this flexure strip 2612 push down this blooming piece 210.
See also Fig. 6, be the sectional view of Fig. 5 along VI-VI, after this first framework 260 is clasped with this second framework 270, these flexure strip 2612 downward protrusion distances are slightly larger than the distance of the projection wall 261 of this blooming piece 210 and this first framework 260, so that this flexure strip 2612 can be pushed down blooming piece 210.After this first framework 260 fastened with this second framework 270, this flexure strip 2612 was pushed down this blooming piece 210 and is produced deformation, so can compress this blooming piece 210, reaches the purpose of effectively fixing this blooming piece 210.And, also leave certain space between this projection wall 261 and this blooming piece 210 for the heat expansion of this blooming piece 210.
Compared with prior art, module 200 backlight is provided with the flexure strip of fixing this blooming piece 210 because of the sidewall 266 of this first framework 260, when leaving certain space, the heat expansion that can be embodied as this blooming piece 210 effectively fixes this blooming piece 210, thereby can prevent to reach to make screen display even brightness purpose because of blooming piece 210 produces the light leakage phenomena that skews and buckling deformation produce.
See also Fig. 7, it is the partial enlarged drawing of the module backlight of second embodiment, the difference of the module backlight of the structure of this module backlight and first embodiment is: this flexure strip 3612 is a bent sheet structure, it comprises a rake 3613 and a horizontal part 3614, this rake 3613 and these 261 angled connections of projection wall, this angle also can be fillet, this rake 3613 can be straight plate shape, also can be arc, this horizontal part 3614 is parallel with this projection wall 261, and has a free end, after this first framework 260 and this second framework 270 fasten, this flexure strip 3612 produces elastic deformation because of pushing down this blooming piece 210, reaches the purpose of effectively fixing this blooming piece.And, also leave certain space between this projection wall 261 and this blooming piece 210 for the heat expansion of this blooming piece.
It is described that this module backlight is not limited to above-mentioned embodiment, and for example, the projection wall of first embodiment and second embodiment also can be spaced apart on this sidewall.
Fig. 8 is the structural representation before liquid crystal indicator 100 assemblings of the present invention, the assembling of liquid crystal indicator 100 of the present invention, be after the assembling of finishing module 200 backlight, display panels 120 is arranged on this projection wall 261 tops, again this housing 110 and this module 200 fastenings backlight is got final product.
Liquid crystal indicator of the present invention also can adopt the module backlight of above-mentioned second embodiment.
Claims (10)
1. a module backlight, comprise a blooming piece, a light guide plate, one first framework and second framework that cooperates with first framework, this first framework comprises at least one sidewall, this first framework and second framework are clasped and form a receiving space to accommodate this light guide plate and this blooming piece, it is characterized in that: this sidewall is provided with at least one flexure strip that is used for fixing this blooming piece, and this flexure strip and this first framework are one-body molded.
2. module backlight as claimed in claim 1 is characterized in that: this sidewall further comprises at least one projection wall substantially parallel with this blooming piece, and this flexure strip is arranged on this projection wall.
3. module backlight as claimed in claim 2 is characterized in that: this flexure strip is the outstanding downwards arc-like sheet that two ends all are connected with this projection wall.
4. module backlight as claimed in claim 2 is characterized in that: this flexure strip is the bent sheet that an end is connected with this projection wall.
5. as claim 3 or 4 described modules backlight, it is characterized in that: contiguous this flexure strip is provided with opening on this projection wall.
6. module backlight as claimed in claim 2 is characterized in that: this projection wall continuous distribution or interruption are distributed on this sidewall.
7. as the module backlight as described in the claim 2, it is characterized in that: the distance that this flexure strip protrudes to this blooming piece is greater than the distance of this blooming piece and this first framework projection wall.
8. liquid crystal indicator, it comprises a housing, a liquid crystal panel and a module backlight, this module backlight comprises a blooming piece, a light guide plate, one first framework and second framework that cooperates with first framework, this first framework comprises at least one sidewall, this first framework and second framework are clasped and form a receiving space to accommodate this light guide plate and this blooming piece, it is characterized in that: this sidewall is provided with at least one flexure strip that is used for fixing this blooming piece, this flexure strip and this first framework are one-body molded, and it is a sheet structure.
9. liquid crystal indicator as claimed in claim 8 is characterized in that: this sidewall further comprises at least one projection wall substantially parallel with this blooming piece, and this flexure strip is arranged on this projection wall.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: the distance that this flexure strip protrudes to this blooming piece is greater than the distance of this blooming piece and this first framework projection wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100365764A CN100403114C (en) | 2005-08-12 | 2005-08-12 | Backlight mould set and liquid crystal display device using the backlight mould set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100365764A CN100403114C (en) | 2005-08-12 | 2005-08-12 | Backlight mould set and liquid crystal display device using the backlight mould set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1912702A CN1912702A (en) | 2007-02-14 |
| CN100403114C true CN100403114C (en) | 2008-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100365764A Expired - Fee Related CN100403114C (en) | 2005-08-12 | 2005-08-12 | Backlight mould set and liquid crystal display device using the backlight mould set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100403114C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8467010B2 (en) | 2007-04-11 | 2013-06-18 | Beijing Boe Optoelectronics Technology Co., Ltd. | Liquid crystal display module |
| TWI446072B (en) * | 2011-10-05 | 2014-07-21 | Au Optronics Corp | Backlight module |
| CN103712173A (en) * | 2013-12-23 | 2014-04-09 | 京东方科技集团股份有限公司 | Back plate and backlight source |
| CN106444126A (en) * | 2016-11-24 | 2017-02-22 | 京东方科技集团股份有限公司 | Plastic frame, backlight module and display device |
| CN109445152A (en) * | 2018-11-06 | 2019-03-08 | 惠州市华星光电技术有限公司 | Panel center, display panel and display device |
| TWI727636B (en) * | 2020-01-30 | 2021-05-11 | 友達光電股份有限公司 | Display device |
| CN111427182B (en) * | 2020-04-13 | 2023-10-13 | 深圳市华星光电半导体显示技术有限公司 | Display module and display terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634761B2 (en) * | 2000-10-05 | 2003-10-21 | Advanced Display Inc. | Planar light source device and liquid crystal display device |
| WO2004011997A1 (en) * | 2002-07-26 | 2004-02-05 | Samsung Electronics Co., Ltd. | Backlight assembly using the same and liquid crystal display device |
| CN1556432A (en) * | 2004-01-12 | 2004-12-22 | 友达光电股份有限公司 | Liquid crystal displag module |
| CN2819251Y (en) * | 2005-07-02 | 2006-09-20 | 群康科技(深圳)有限公司 | Negative light molding set and liquid-crystal display device |
-
2005
- 2005-08-12 CN CNB2005100365764A patent/CN100403114C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634761B2 (en) * | 2000-10-05 | 2003-10-21 | Advanced Display Inc. | Planar light source device and liquid crystal display device |
| WO2004011997A1 (en) * | 2002-07-26 | 2004-02-05 | Samsung Electronics Co., Ltd. | Backlight assembly using the same and liquid crystal display device |
| CN1556432A (en) * | 2004-01-12 | 2004-12-22 | 友达光电股份有限公司 | Liquid crystal displag module |
| CN2819251Y (en) * | 2005-07-02 | 2006-09-20 | 群康科技(深圳)有限公司 | Negative light molding set and liquid-crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1912702A (en) | 2007-02-14 |
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Granted publication date: 20080716 Termination date: 20190812 |