CN100543547C - Module backlight and liquid crystal indicator - Google Patents
Module backlight and liquid crystal indicator Download PDFInfo
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- CN100543547C CN100543547C CNB2006100635289A CN200610063528A CN100543547C CN 100543547 C CN100543547 C CN 100543547C CN B2006100635289 A CNB2006100635289 A CN B2006100635289A CN 200610063528 A CN200610063528 A CN 200610063528A CN 100543547 C CN100543547 C CN 100543547C
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- circuit board
- flexible circuit
- framework
- module backlight
- stator
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Abstract
The present invention relates to the liquid crystal indicator of a kind of module backlight and this module backlight of employing.This module backlight comprises a light guide plate, a flexible circuit board, a framework and a holding structure.This light guide plate is arranged in this framework, and has an incidence surface.This flexible circuit board comprises that one is provided with the light source setting area of light-emitting component, and this light-emitting component is between this framework and this light guide plate incidence surface.This this flexible circuit board of holding structure clamping is between this framework and this holding structure, and this holding structure comprises stator and pickup groove, and this stator and pickup groove cooperatively interact, and then this flexible circuit board is retained on this framework.
Description
Technical field
The present invention relates to the liquid crystal indicator of a kind of module backlight and this module backlight of employing.
Background technology
Because the liquid crystal itself in the panel of LCD does not possess the characteristics of luminescence, therefore for reaching display effect, need to give the LCD panel to provide a planar light source device to realize Presentation Function, as module backlight, its function is to provide the planar light that brightness is abundant and be evenly distributed to display panels.
Usually, module backlight comprises that mainly (Flexible Printed Circuit, FPC) with other optical element, each element of this module backlight needs a backlight module frame to be fixed for light source, light source cover, light guide plate, flexible circuit board when assembling.
See also Fig. 1 and Fig. 2, Fig. 1 is the three-dimensional exploded view of a kind of prior art module backlight, and Fig. 2 is the assembling synoptic diagram of module backlight shown in Figure 1.This module 10 backlight comprises a flexible circuit board 11, a plurality of light-emitting component 15, has the light guide plate 17 of an incidence surface 16, accommodates this flexible circuit board 11 and light guide plate 17 framework 13 and a two-sided adhesive tape 19 within it.
This flexible circuit board 11 comprises a light source setting area 112, and this light-emitting component 15 is arranged on the light source setting area 112 of this flexible circuit board 11.
This framework 13 comprises a depressed part 131, and this depressed part 131 has a plurality of breach 132.
This framework 13 is generally the glue frame, this light-emitting component 15 be generally light emitting diode (Light Emitting Diode, LED).
This module 10 backlight can be assembled according to following order.At first, this light guide plate 17 is arranged on this framework 13, again this flexible circuit board 11 is arranged in this depressed part 131, and utilize double sticky tape 19 applyings to be fixed on this depressed part 131, at this moment, these a plurality of light-emitting components 15 lay respectively in a plurality of breach 132 of this depressed part 131, this light-emitting component 15 over against and the incidence surface 16 of contiguous this light guide plate 17.
Yet, when adopting adhesive means to be fixed on flexible circuit board 11 on the framework 13, when fitting, need do the contraposition calibration, and double sticky tape 19 has light absorptive, make light utilization efficiency descend, thereby make the brightness of module 10 backlight descend, and then influence the bright dipping quality of module 10 backlight.
And because of the restriction on module backlight 10 spaces, flexible circuit board 11 is also very limited with the zone that the glue frame is pasted, and it is relatively poor that therefore the effect of this flexible circuit board 11 is fixed in adhesion; Module 10 backlight is when practical application, and this flexible circuit board 11 need be made bending action, and fix this flexible circuit board 11 double sticky tape 19 adhesive strength a little less than, make flexible circuit board 11 easily upspring or the phenomenon of perk; And As time goes on, the perhaps change of environment temperature, it is unstable that the mucilage materials of double sticky tape 19 can become, and this flexible circuit board 11 also can be upspring or the phenomenon of perk.At this moment, easily cause light source setting area 112 and light guide plate 17 relative positions to break away from, the light that is sent by light-emitting component 15 can depart from the incidence surface 16 of light guide plate 17, make the brightness of module 10 backlight descend, and then influence the bright dipping quality of module 10 backlight, make liquid crystal panel can't obtain enough illuminations, the problem that causes brightness to reduce.
Summary of the invention
In order to solve the lower problem of light utilization efficiency of the prior art, be necessary the module backlight that provides a kind of light utilization efficiency higher.
Also be necessary to provide a kind of liquid crystal indicator that adopts above-mentioned module backlight.
A kind of module backlight, it comprises a light guide plate, a flexible circuit board, a framework and a holding structure.This light guide plate is arranged in this framework, and has an incidence surface.This flexible circuit board comprises that one is provided with the light source setting area of light-emitting component, and this light-emitting component is between the incidence surface of this framework and this light guide plate.This this flexible circuit board of holding structure clamping is between this framework and this holding structure, and this holding structure comprises stator and pickup groove, and this stator and pickup groove cooperatively interact, and then this flexible circuit board is retained on this framework.
A kind of liquid crystal indicator, it comprises the module backlight that a liquid crystal panel and contiguous this liquid crystal panel are provided with.This module backlight comprises a light guide plate, a flexible circuit board, a framework and a holding structure.This light guide plate is arranged in this framework, and has an incidence surface.This flexible circuit board comprises that one is provided with the light source setting area of light-emitting component, and this light-emitting component is between the incidence surface of this framework and this light guide plate.This this flexible circuit board of holding structure clamping is between this framework and this holding structure, and this holding structure comprises stator and pickup groove, and this stator and pickup groove cooperatively interact, and then this flexible circuit board is retained on this framework.
Compared with prior art, this module backlight and liquid crystal indicator utilize this flexible circuit board of holding structure clamping between this framework and this holding structure, it has enough big holding force, increased the steadiness of this flexible circuit board, the relative position that can guarantee the light source setting area of flexible circuit board and light guide plate incidence surface is stable, and then guarantees the bright dipping quality.And this stator is positioned at this flexible circuit board and is not provided with light-emitting component one side, can prevent the phenomenon that causes light utilization efficiency to descend owing to extinction.
Description of drawings
Fig. 1 is the three-dimensional exploded view of a kind of prior art module backlight.
Fig. 2 is the assembling synoptic diagram of module backlight shown in Figure 1.
Fig. 3 is the three-dimensional exploded view of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the enlarged diagram of IV part among Fig. 3.
Fig. 5 is the assembling synoptic diagram of the module backlight of liquid crystal indicator shown in Figure 3.
Fig. 6 is the partial cross section figure of Fig. 5 along the VI-VI direction.
Fig. 7 is the partial cross section figure of liquid crystal indicator second embodiment of the present invention.
Fig. 8 is the partial cross section figure of liquid crystal indicator the 3rd embodiment of the present invention.
Fig. 9 is the three-dimensional exploded view of liquid crystal indicator the 4th embodiment of the present invention.
Figure 10 is the cross section enlarged drawing of Fig. 9 along the X-X direction.
Embodiment
Seeing also Fig. 3, is the three-dimensional exploded view of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 2 comprises the module backlight 20 that a liquid crystal panel 29 and contiguous this liquid crystal panel 29 are provided with.
This module 20 backlight comprises that one has light guide plate 27, a flexible circuit board 21, a plurality of light-emitting component 25, a stator 222 and a framework 23 of incidence surface 26.This light guide plate 27, flexible circuit board 21, a plurality of light-emitting component 25 and stator 222 are housed in this framework 23.
This flexible circuit board 21 comprises a light source setting area 212, and this light-emitting component 25 is generally light emitting diode, and it is arranged on this light source setting area 212.
The metal lamellar body that this stator 222 is L shaped structures, it comprises first blade 226 and second blade 228 that intersects vertically.
Seeing also Fig. 4, is IV enlarged diagram partly shown in Figure 3.This framework 23 is generally the glue frame, and it comprises the first side wall 233, second sidewall 234, the 3rd sidewall 235 and the 4th sidewall 236, and each sidewall links to each other successively and defines a receiving space (not indicating).Have a depressed part 231 on this first side wall 233, this depressed part 231 has a plurality of breach 232.Respectively be provided with a pickup groove 224 on second sidewall 234 that is oppositely arranged and links to each other with this first side wall 233 respectively and the 4th sidewall 236.
See also Fig. 5 and Fig. 6 again, Fig. 5 is the assembling synoptic diagram of the module backlight 20 of liquid crystal indicator 2 shown in Figure 3, and Fig. 6 is the partial cross section figure of Fig. 5 along the VI-VI direction.This module 20 backlight can be assembled in the following order.At first, this light guide plate 27 is arranged on this framework 23, again this flexible circuit board 21 is arranged in this depressed part 231, and make that these a plurality of light-emitting components 25 lay respectively in these a plurality of breach 232, so that this light-emitting component 25 is between this framework 23 and this light guide plate 27, over against and contiguous this incidence surface 26.Then this stator 222 is pressed and put on this flexible circuit board 21, and make the two ends of this stator 222 embed respectively in this two pickup groove 224.At this moment, this this flexible circuit board 21 of stator 222 clampings is between its first blade 226 and framework 23, and its second blade 228 bends the outside surface of these framework 23 the first side walls 233, to strengthen the structural strength of module 20 backlight.This stator 222 and pickup groove 224 match and as a holding structure this flexible circuit board 21 are retained on this framework 23.
Compared to prior art, owing in this module 20 backlight these stator 222 pressures are put on flexible circuit board 21, utilize this flexible circuit board 21 of stator 222 clampings between its first blade 226 and framework 23, it has enough big holding force, increased the steadiness of this flexible circuit board 21, the light source setting area 212 that can guarantee flexible circuit board 21 is stable with the relative position of light guide plate 27, and then guarantees the bright dipping quality of module 20 backlight.And this stator 222 is to press to put on flexible circuit board 21, is positioned at the side that this flexible circuit board 21 is not provided with light-emitting component 25, can prevent the phenomenon that causes module 20 light utilization efficiencies backlight to descend owing to its extinction.
Seeing also Fig. 7, is the partial cross section figure of liquid crystal indicator second embodiment of the present invention.This liquid crystal indicator is similar to the liquid crystal indicator of first embodiment, and its difference is: these pickup groove 324 relative the second, the 4th sidewall slope, the corresponding inclination in the two ends of this stator 322 and accommodating are fixed in this pickup groove 324, to increase retain strength.
Seeing also Fig. 8, is the partial cross section figure of liquid crystal indicator the 3rd embodiment of the present invention.This liquid crystal indicator is similar to the liquid crystal indicator of first embodiment, its difference is: this pickup groove 424 is arranged on the two ends of this first side wall 433, it is a U-lag, this stator 422 is provided with U-shaped projection 423 with this pickup groove opposite position, these flexible circuit board 41 two ends and this pickup groove 424 opposite positions are provided with through hole 414, the U-shaped projection 423 of this stator 422 is passed this through hole 414 and pickup groove 424, and these flexible circuit 41 plates are retained on this framework 43.
See also Fig. 9 and Figure 10, Fig. 9 is the three-dimensional exploded view of liquid crystal indicator the 4th embodiment of the present invention, and Figure 10 is the cross section enlarged drawing of Fig. 9 along the X-X direction.This liquid crystal indicator is similar to the liquid crystal indicator of the 3rd embodiment, its difference is: this stator 522 is strip structures, projection 523 disposed thereon is the rectangular sheets that go out from stator 522 self bending, this pickup groove 524 matches with projection 523, the width of promptly contiguous this flexible circuit board one side of the width minimum at these pickup groove 524 middle parts, its top and its underpart promptly away from the width of this flexible circuit board one side all greater than the width at its middle part.The thickness of this projection 522 is less than the width of these pickup groove 524 upper and lowers, and be slightly larger than the width at its middle part, when so this projection 523 is passed the through hole 514 of flexible circuit board and pickup groove 524, the projection 523 of this this stator 522 of pickup groove 524 clampings, and this flexible circuit board is retained on this framework.
Yet it is described that this module backlight is not limited to above-mentioned embodiment, for example, projection also can be arranged on the framework, and fixed orifice is set on stator, the projection that is arranged on the framework cooperates with fixed orifice on being arranged on stator, and flexible circuit board is retained on this framework; The size and dimension of this stator also can be according to its demand change design, and it can reach retention effect and get final product; Also fixed orifice can be set on this stator, its this flexible circuit board of pickup groove fixing that passes the through hole of fixed orifice, flexible circuit board of stator and framework by a gim peg is on this framework, and it also can be by screw and stator fixing flexible circuit board on framework; This flexible circuit board also can be only by stator as a holding structure, this flexible circuit board of clamping is between this stator and framework; The material of this stator also can for iron, copper, tin, poly-to stupid dioctyl phthalate second two fat (Polyethylene Terepthalate, PET) or polycarbonate (Polycarbonate, PC) or the like.
Claims (9)
1. module backlight, it comprises a light guide plate, one flexible circuit board and a framework, this light guide plate is arranged in this framework, it comprises an incidence surface, this flexible circuit board comprises that one is provided with the light source setting area of light-emitting component, this light-emitting component is between this framework and this light guide plate incidence surface, it is characterized in that: this module backlight further comprises a holding structure, this flexible circuit board of its clamping is between this framework and holding structure, this holding structure comprises stator and pickup groove, this stator and pickup groove cooperatively interact, and then this flexible circuit board is retained on this framework.
2. module backlight as claimed in claim 1 is characterized in that: this framework comprises a sidewall, and this flexible circuit board is arranged on this sidewall.
3. module backlight as claimed in claim 2, it is characterized in that: this framework further comprises two sidewalls that are oppositely arranged and link to each other with this sidewall respectively, this pickup groove is separately positioned on two opposing sidewalls of this framework, this stator is pressed and is put this flexible circuit board, its two ends embed this pickup groove, and then this flexible circuit board is retained on this framework.
4. module backlight as claimed in claim 3 is characterized in that: this pickup groove this two opposing sidewalls relatively tilts the corresponding inclination in the two ends of this stator.
5. module backlight as claimed in claim 2, it is characterized in that: this pickup groove is arranged on this sidewall two ends, this stator and this pickup groove relative position are provided with projection, these flexible circuit board two ends and this pickup groove correspondence position are provided with through hole, the projection of this stator is passed this through hole and pickup groove and is pressed and put on this flexible circuit board, and then this flexible circuit board is retained on this framework.
6. module backlight as claimed in claim 5, it is characterized in that: this projection is the rectangular sheet that goes out from stator self bending, the width minimum at this pickup groove middle part, and the thickness of this projection is less than the width of this pickup groove upper and lower, be slightly larger than the width at its middle part, then this this projection of pickup groove clamping is retained on this framework with this flexible circuit board.
7. module backlight as claimed in claim 1 is characterized in that: the material of this stator is iron, copper, tin, poly-to stupid dioctyl phthalate second two fat or polycarbonate.
8. module backlight as claimed in claim 1 is characterized in that: this stator is L shaped structure.
9. liquid crystal indicator, it comprises the liquid crystal panel that a module backlight and contiguous this module backlight are provided with, it is characterized in that: this module backlight is the described module backlight of any claim in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100635289A CN100543547C (en) | 2006-11-08 | 2006-11-08 | Module backlight and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100635289A CN100543547C (en) | 2006-11-08 | 2006-11-08 | Module backlight and liquid crystal indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178504A CN101178504A (en) | 2008-05-14 |
| CN100543547C true CN100543547C (en) | 2009-09-23 |
Family
ID=39404814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100635289A Expired - Fee Related CN100543547C (en) | 2006-11-08 | 2006-11-08 | Module backlight and liquid crystal indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100543547C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592819B (en) * | 2008-05-30 | 2010-10-13 | 胜华科技股份有限公司 | Backlight module |
| CN101630070B (en) * | 2008-07-18 | 2012-10-31 | 龙旗科技(上海)有限公司 | Method for designing ultrathin highlight wide-viewing-angle face-change liquid crystal display module |
| CN101770753B (en) * | 2009-01-06 | 2013-07-24 | 胜华科技股份有限公司 | Display device structure |
| CN101630077B (en) * | 2009-08-21 | 2011-02-09 | 友达光电（苏州）有限公司 | Liquid crystal display (LCD) module |
| CN102300439A (en) * | 2010-06-24 | 2011-12-28 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN103744218B (en) * | 2014-01-30 | 2016-08-17 | 友达光电(厦门)有限公司 | Display module |
| CN109036124B (en) * | 2018-08-30 | 2021-01-26 | 京东方科技集团股份有限公司 | Display module and display device |
-
2006
- 2006-11-08 CN CNB2006100635289A patent/CN100543547C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101178504A (en) | 2008-05-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090923 Termination date: 20191108 |