CN101211046A

CN101211046A - LCD device

Info

Publication number: CN101211046A
Application number: CNA2006100646461A
Authority: CN
Inventors: 张正芳
Original assignee: Innolux Shenzhen Co Ltd; Innolux Display Corp
Current assignee: Innolux Shenzhen Co Ltd; Innolux Corp
Priority date: 2006-12-29
Filing date: 2006-12-29
Publication date: 2008-07-02
Anticipated expiration: 2026-12-29
Also published as: CN101211046B

Abstract

The invention relates to a liquid crystal display device, which comprises a liquid crystal display panel, a backlight module and a first framework. The first framework contains and fixes the backlight module, and includes two opposite sides, each of which comprises an extension sheet extending towards the inside of the first framework. The backlight module and the liquid crystal display panel are arranged overlappedly, and include a second framework which comprises two side walls facing each other and corresponding to the sides of the first framework, and each side wall is provided with a slide groove. The extension sheets are contained in the slide grooves of the second framework. No matter whether discrepancy exists between actual sizes and design sizes of the two frameworks, the structure can still realize firm matching of the backlight module and the first framework, and the liquid crystal display device can be firmer and more reliable after the assembly.

Description

Liquid crystal indicator

Technical field

The invention relates to a kind of liquid crystal indicator.

Background technology

In recent years, advantage such as liquid crystal indicator is frivolous because of volume, it is little to take up room, radiation is little shows the main flow of product and occupied gradually, and has replaced traditional cathode-ray tube display gradually.Liquid crystal indicator generally includes an area source, as module backlight, for its display panels provides brightness planar light adequately and uniformly.

Seeing also Fig. 1, is a kind of perspective exploded view of prior art liquid crystal indicator.This liquid crystal indicator 1 comprises that a display panels 11 reaches and a module 10 backlight of these display panels 11 stacked settings.This module 10 backlight provides uniform in-plane light for this display panels 11.This liquid crystal indicator 1 further comprises a chase 190, to accommodate and to reinforce this module 10 backlight.

This module 10 backlight comprises a light guide plate 140, a flexible circuit board 150, a plurality of pointolite 160 and a glue frame 180.These a plurality of pointolites 160 are arranged on this flexible circuit board 150.

This glue frame 180 is roughly the rectangle framework, and it comprises a first side wall 181, one second sidewall 182, one the 3rd sidewall 183 and one the 4th sidewall 184.This four sidewall 181,182,183,184 joins end to end in regular turn, and then defines one first receiving space 187 and accommodate this light guide plate 140, this flexible circuit board 150 and these a plurality of pointolites 160.Wherein, this first side wall 181 respect to one another comprises two projections that are set up in parallel 185 that extend to these glue frame 180 outsides respectively with the 3rd sidewall 183 outsides.

This chase 190 comprises a rectangular base plate 199, the vertical respectively side that extends in four limits of this base plate 199, be first side 191, second side 192, the 3rd side 193 and four side 194, this four side 191,192,193,194 and this base plate 199 definition one second receiving space 197 are accommodated this module 10 backlight.Wherein, this first side 191 respect to one another comprises two openings that are set up in parallel 195 respectively with the 3rd side 193.This opening 195 is corresponding one by one with the projection 185 of this glue frame 180.The design size of this chase 190 is slightly larger than the design size of this glue frame 180.

See also Fig. 2 and Fig. 3, Fig. 2 is the assembling synoptic diagram of this module 10 backlight and this chase 190, and Fig. 3 is the schematic cross-section of Fig. 2 along the III-III direction.This light guide plate 140 is arranged in this glue frame 180, and a plurality of pointolites 160 on this flexible circuit board 150 are arranged between second sidewall 182 and this light guide plate 140 of this glue frame 180.Second receiving space 197 of this chase 190 is accommodated this module 10 backlight, and four projections 185 of this glue frame 180 are contained in respectively in four openings 195 of this chase 190 and engage with it, and then should be fixed in this chase 10 by module 10 backlight.

Yet this chase 190 and this glue frame 180 are made condition effect, and there are certain error in its size and former design size, and this error can cause this module 10 backlight insecure with the assembling of this chase 190.Seeing also Fig. 4, is the schematic cross-section of this module 10 backlight and these chase 190 loose assemblings.The size of this glue frame 180 is less than normal than design load, the size of this chase 190 is bigger than normal than design load, four projections 185 of this glue frame 180 only have part can be contained in respectively in the corresponding opening 195, and this liquid crystal indicator 1 is in carrying or impact process, and this module 10 backlight easily rocks in this chase 190.See also Fig. 5 and Fig. 6, if scale error is bigger, then the 3rd sidewall 183 of this glue frame 180 is adjacent to the 3rd side 193 of this chase 190, the first side 191 that the first side wall 181 of this glue frame 180 breaks away from this chase 190 causes this module 10 backlight and this chase 190 to break away from, thereby influences the structural reliability of this liquid crystal indicator 1.

Summary of the invention

Module backlight and chase easily break away from the prior art liquid crystal indicator in order to solve, and cause the lower problem of liquid crystal indicator reliability, and the liquid crystal indicator that provides a kind of reliability higher is provided.

A kind of liquid crystal indicator, it comprises a display panels, a module backlight and one first framework.This first framework is accommodated and fixing this module backlight, and it comprises two opposed side edges, and each side comprises to the inner Extendible flake that extends of this first framework.This module backlight and the stacked setting of this display panels, it comprises one second framework, this second framework comprises and this first frame sides corresponding two sidewalls respect to one another that each sidewall comprises a chute.This Extendible flake is contained in the chute of this second framework.

Compared with prior art, the Extendible flake of above-mentioned liquid crystal indicator first framework is contained in the chute of second framework, makes this first framework more firm with cooperating of this second framework.During fabrication, though the physical size of this two framework and design size error slightly, this structure still can realize cooperating firmly, and then this liquid crystal indicator is comparatively firm after assembling, reliability is higher.

Description of drawings

Fig. 1 is a kind of perspective exploded view of prior art liquid crystal indicator.

Fig. 2 is the module backlight of liquid crystal indicator shown in Figure 1 and the assembling synoptic diagram of chase.

Fig. 3 is the schematic cross-section of Fig. 2 along the III-III direction.

Fig. 4 is the schematic cross-section of module backlight shown in Figure 2 and the loose assembling of chase.

Fig. 5 is the schematic cross-section of the one-sided disengaging chase of module backlight shown in Figure 2.

Fig. 6 is the enlarged diagram of VI part among Fig. 5.

Fig. 7 is the perspective exploded view of liquid crystal indicator one better embodiment of the present invention.

Fig. 8 is the perspective exploded view of 180 ° of the glue frame of liquid crystal indicator shown in Figure 7 and chase counter-rotatings.

Fig. 9 is the enlarged diagram at IX place among Fig. 8.

Figure 10 is the enlarged diagram at X place among Fig. 8.

Figure 11 is the enlarged diagram at XI place among Fig. 8.

Figure 12 is the assembling schematic perspective view of 180 ° of liquid crystal indicator shown in Figure 8 module backlight and chase counter-rotatings.

Figure 13 is the enlarged diagram at XII place among Figure 12.

Embodiment

Seeing also Fig. 7, is the perspective exploded view of liquid crystal indicator one better embodiment of the present invention.This liquid crystal indicator 2 comprises a display panels 21 and a module 22 backlight.This module backlight 22 and these display panels 21 stacked settings also provide uniform in-plane light for this display panels 21.This liquid crystal indicator 2 further comprises a chase 29, to accommodate and to reinforce this module 22 backlight and this display panels 21.

This module 22 backlight comprises a light guide plate 24, a flexible circuit board 25, a plurality of pointolite 26 and a glue frame 28.These a plurality of pointolites 26 are arranged on this flexible circuit board 25.

This glue frame 28 is roughly the rectangle framework, and it comprises a first side wall 281, one second sidewall 282, one the 3rd sidewall 283 and one the 4th sidewall 284.This four sidewall 281,282,283,284 joins end to end in regular turn, and then defines one first receiving space 287 and accommodate this light guide plate 24, this flexible circuit board 25 and these a plurality of pointolites 26.

This chase 29 comprises a rectangular base plate 299, the vertical respectively side that extends in three limits of this base plate 299, i.e. and first side 291, second side 292 and the 3rd side 293, this first side 291 is oppositely arranged and structural symmetry with the 3rd side 293.This three side 291,292,293 and this base plate 299 definition one second receiving space 297 are to accommodate this module 22 backlight.

See also Fig. 8, Fig. 9, Figure 10 and Figure 11, Fig. 8 is this glue frame 28 and the perspective exploded view of 180 ° of this chase 29 counter-rotatings, Fig. 9 is the enlarged diagram at IX place among Fig. 8, and Figure 10 is the enlarged diagram at X place among Fig. 8, and Figure 11 is the enlarged diagram at XI place among Fig. 8.The 3rd side 293 of this chase 29 is provided with two Extendible flakes 298, and between this two Extendible flake 298 and edge of this base plate 299 is provided with a rectangular aperture 296.This Extendible flake 298 is to this chase 29 inner extensions, its be parallel to this base plate 299 and and this base plate 299 between have one apart from d.The 3rd sidewall 283 of this glue frame 28 comprises two chutes 288 and is arranged at a elastic key 286 between this two chute 288.This two chute 288 is corresponding with these two Extendible flakes, 298 positions, and this elastic key 286 is corresponding with these opening 296 positions.This chute 288 comprises a square breach 2881 and a slideway 2882.This breach 2881 communicate with this slideway 2882 and its both bottom at grade.This cross-sectional area of scarce 2881 is greater than the area of this Extendible flake 298, and the degree of depth of this breach 2881 is identical to the distance of this base plate 299 with this Extendible flake 298, and the width b of this slideway 2882 is slightly larger than or is equal to the thickness of this Extendible flake 298.This elastic key 286 extends along the edge of the 3rd sidewall 283, and its bearing of trend is identical with the bearing of trend of this slideway 2882, and the end of this elastic key 286 (not indicating) is a little more than the surface of this glue frame 28.

This light guide plate 24 is arranged in this glue frame 28, and a plurality of pointolites 26 on this flexible circuit board 25 are arranged between the 4th sidewall 284 and this light guide plate 24 of this glue frame 28, and second receiving space 297 of this chase 29 is accommodated this module 22 backlight.This display panels 21 be arranged at this light guide plate 24 with these chase 29 opposite sides and be contained in this glue frame 28.

See also Figure 12 and Figure 13, Figure 12 is this module backlight 22 and the assembling schematic perspective view of 180 ° of this chase 29 counter-rotatings, and Figure 13 is the enlarged diagram at XII place among Figure 12.In assembling process, at first with 292 pairs of the second sides of this chase 29 should glue frame 28 second sidewall 282 be provided with, and the Extendible flake 298 that makes this chase 29 is contained in the breach 2881 of these glue frame 28 chutes 288, secondly, promote this chase 29 or this glue frame 28, making this Extendible flake 298 slip into this slideway 2882 from this breach 2881 conflicts until this Extendible flake 298 and the root (not indicating) of this slideway 2882, simultaneously, the end of the elastic key 286 of this glue frame 28 slips in the rectangular aperture 296 of this chase 29, and second sidewall 282 of second side 292 these glue frames 28 of conflict of this chase 29.The slideway 2882 of the Extendible flake 298 of this module 22 backlight by this chase 29 and this glue frame 28 cooperate the location that is implemented in Z axle on the vertical direction; The end of the elastic key 286 by this glue frame 28 cooperates to be implemented on X-axis, the Y direction with the rectangular aperture 296 of this chase 29 locatees.The distance of the first side 291 of this chase 29 and the 3rd side 293 inboards, promptly the inner width of this chase 29 is slightly larger than the first side wall 281 of design width or this glue frame 28 and the distance in the 3rd sidewall 283 outsides, promptly the outside width of this glue frame 28 is slightly less than the design width, above-mentioned fit structure can guarantee that all this module 22 backlight does not break away from this chase 29, and then the reliability of this liquid crystal indicator 1 improves.

Yet, it is described that liquid crystal indicator 2 of the present invention is not limited to above-mentioned embodiment, it can further comprise a framework (figure do not show), and the assembling mode that this display panels 21 and its and this glue frame 28 were accommodated and fixed to this framework is equal to the assembling mode of this chase 29 and this glue frame 28.Promptly, this glue frame 28 is provided with chute (figure does not show) and elastic key (figure does not show), also be provided with Extendible flake (figure does not show) and rectangular aperture (figure does not show) on this framework 29, this chute cooperates with this Extendible flake, and this elastic key cooperates with this opening this frame fixation on this glue frame 28.This framework is a metal frame, as chase.

Claims

1. liquid crystal indicator, it comprises a display panels, a module backlight and one first framework of stacked setting, this first framework is accommodated and is fixed this module backlight and comprise two opposed side edges, this module backlight comprises one second framework, this second framework comprises and this first frame sides corresponding two sidewalls respect to one another, it is characterized in that: each side comprises to the inner Extendible flake that extends of this first framework, each sidewall comprises a chute, and this Extendible flake is contained in the chute of this second framework.

2. liquid crystal indicator as claimed in claim 1 is characterized in that: this first framework comprises a rectangular base plate, and this dual-side is vertically extended on the relative both sides of this base plate, and this Extendible flake is parallel to this base plate.

3. liquid crystal indicator as claimed in claim 2 is characterized in that: this chute comprises a breach and a slideway, this breach communicate with this slideway and its both bottom at grade.

4. liquid crystal indicator as claimed in claim 3 is characterized in that: the xsect of this breach is greater than the area of this Extendible flake, and the degree of depth of this breach equates with the distance of this Extendible flake to this base plate.

5. liquid crystal indicator as claimed in claim 3 is characterized in that: the width of this slideway is identical with the thickness of this Extendible flake.

6. liquid crystal indicator as claimed in claim 2 is characterized in that: this first framework further comprises the opening of being located at this bottom edge.

7. liquid crystal indicator as claimed in claim 6 is characterized in that: this sidewall further comprises and the corresponding elastic key of this opening.

8. liquid crystal indicator as claimed in claim 7 is characterized in that: this elastic key extends along the edge of this sidewall, and the end of this elastic key is a little more than the surface of this second framework.

9. liquid crystal indicator as claimed in claim 8 is characterized in that: the end of this elastic key is contained in this opening, and inconsistent with the edge of this opening.

10. liquid crystal indicator as claimed in claim 1, it is characterized in that: this liquid crystal indicator further comprises one the 3rd framework, the 3rd framework is accommodated this display panels, and the connected mode of the 3rd framework and this second framework is that Extendible flake is contained in the chute.