CN101988993B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN101988993B CN101988993B CN 200910165098 CN200910165098A CN101988993B CN 101988993 B CN101988993 B CN 101988993B CN 200910165098 CN200910165098 CN 200910165098 CN 200910165098 A CN200910165098 A CN 200910165098A CN 101988993 B CN101988993 B CN 101988993B
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- China
- Prior art keywords
- liquid crystal
- inside casing
- backboard
- crystal indicator
- bridge formation
- Prior art date
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a liquid crystal display device. The device comprises an outer frame, a liquid crystal panel and a backlight module, wherein the backlight module comprises a back plate, an inner frame and other elements; the inner frame comprises an opening in which a check block is arranged; the back plate is provided with a bridge at a position corresponding to the check block; and the check block is combined with the bridge, so that the elements of the backlight module are fixed between the back plate and the inner frame. The liquid crystal display device is mainly characterized in that: the mechanism designs of the inner frame and the back plate meet the requirements of enough strength, low cost and rapid assembly.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly about a kind of package assembly of liquid crystal indicator.
[background technology]
The Development Technology of liquid crystal indicator is more rapid and sound compared to other flat-panel screens.In recent years, the machine that each producer releases has the trend of more rationalizing towards large scale, price, to accord with the demands of the market.
Usually, liquid crystal indicator comprises a liquid crystal panel and a backlight module.Liquid crystal panel comprises a colored filter substrate and a membrane transistor substrate, is filled with a liquid crystal layer between two substrates.Backlight module provides liquid crystal panel to show needed light source.
Backlight module can be divided into straight-down negative and the large type of side-light type two according to light source position, and the latter's light source position is arranged at the side of backlight module and a light guide plate is set to assist light source evenly to penetrate more.Common large-sized liquid crystal indicator can adopt the backlight module of straight-down negative.
Fig. 1 discloses a kind of existing liquid crystal indicator 10, and it mainly comprises a backlight module 11, a liquid crystal panel 19, a housing 18.In diagram, backlight module 11 is backlight modules of a kind of straight-down negative, and it comprises a backboard 12, and several light sources 13 are arranged on backboard 12.In addition, between backboard 12 and light source 13, a reflecting plate 14 may be provided with, the luminescence efficiency of utilizing light source 13 can be increased.
In addition, in order to promote the efficient of light source 13, may be provided with a diffuser plate 15 above light source 13; Optimization for optical characteristics such as brightness, visual angle, homogeneitys is provided with an optic film set 16 usually above diffuser plate 15.
In addition, a framework 17 (hereinafter to be referred as inside casing 17, its material can be plastic cement) is arranged on optic film set 16.The role of inside casing 17 in mechanism is quite important, and on the one hand, aforesaid liquid crystal panel 19 is arranged at the inner edge of inside casing 17, then sees through the combination of inside casing 17 and housing 18, and liquid crystal panel 19 is fixed between inside casing 17 and housing 18; On the other hand, inside casing 17 is pressed on the outer rim of optic film set 16, and sees through the combination of inside casing 17 and backboard 12, and the elements such as optic film set 16, diffuser plate 15 are fixed between inside casing 17 and backboard 12.
Usually backboard 12 is metals, for example aluminium, steel or meet lightweight and the alloy strong condition of rigidity, and may be to make in integrated mode.And being generally plastic material, makes inside casing 17.Can be expected that, in order to reduce the manufacturing journey basis of liquid crystal indicator, particularly for large-sized liquid crystal indicator, the combination of inside casing 17 and backboard 12 must meet on its mechanism design: sufficient intensity each element with carrying backlight module 11, low manufacturing cost, the demand such as easy to assembly are provided.
Therefore, needing badly provides a kind of new liquid crystal indicator, is primarily characterized in that inside casing 17 and the mechanism design of backboard 12 can meet above-mentioned requirements, leaves in a large number under situation to reach in production capacity, reaches the target that makes the liquid crystal indicator reasonable price.
[summary of the invention]
The object of the present invention is to provide a kind of new liquid crystal indicator, be primarily characterized in that the mechanism design of inside casing and backboard meets the demand that intensity is enough, cost is low, assembling is fast.
According to above-mentioned purpose, the invention provides a kind of liquid crystal indicator, comprise a housing, a liquid crystal panel, a backlight module, wherein backlight module comprises a backboard, several light sources, a diffuser plate, an optic film set, an inside casing, liquid crystal panel is fixed between inside casing and housing, and inside casing comprises an opening, and opening is provided with a block, backboard is provided with a bridge formation in the correspondence position of block, and block is fixed between backboard and inside casing each element of backlight module in conjunction with bridge formation.
According to above-mentioned purpose, the invention provides another kind of liquid crystal indicator, its structure is identical with the structure of above-mentioned liquid crystal indicator, does not exist together only to be to build bridge location swap with block.
According to above-mentioned purpose, the invention provides another kind of liquid crystal indicator, its structure and above-mentioned liquid crystal indicator different be in, inside casing comprises several frame sections, wherein the below of at least one frame section comprises an overhead kick, backboard is provided with a groove in the correspondence position of overhead kick, and the overhead kick engagement groove is fixed between backboard and inside casing each element of backlight module.
The invention provides a kind of liquid crystal indicator, comprise:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
One inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises at least one opening, this opening is provided with a block, this backboard is provided with a bridge formation in the correspondence position of this block, and this block is fixed between this backboard and this inside casing these several light sources, this diffuser plate, this optic film set in conjunction with this bridge formation.
The present invention also provides a kind of liquid crystal indicator, comprises:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
One inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises at least one bridge formation, this backboard is provided with an opening and this opening is provided with a block in the correspondence position of this bridge formation, and this block is fixed between this backboard and this inside casing these several light sources, this diffuser plate, this optic film set in conjunction with this bridge formation.
The present invention also provides a kind of liquid crystal indicator, comprises:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
One inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises several frame sections, the below of at least one this frame section comprises an overhead kick, this backboard is provided with a groove in the correspondence position of this overhead kick, and this overhead kick is fixed between this backboard and this inside casing these several light sources, this diffuser plate, this optic film set in conjunction with this groove.
[description of drawings]
Fig. 1 shows an existing liquid crystal indicator;
Fig. 2 to Fig. 6 shows the liquid crystal indicator of the embodiment of the present invention; And
Fig. 7 to Fig. 9 shows the liquid crystal indicator of preferred embodiment of the present invention.
10 liquid crystal indicators
11 backlight modules
12 backboards
13 light sources
14 reflecting plates
15 diffuser plates
16 optic film set
17 inside casings
18 housings
19 liquid crystal panels
20 liquid crystal indicators
21 backlight modules
22 backboards
23 light sources
24 reflecting plates
25 diffuser plates
26 optic film set
27 inside casings
28 housings
29 liquid crystal panels
30 frame sections
31 frame sections
32 snap fits
33 overhead kicks
34 grooves
35 blocks
36 build bridge
38 bridge formation outer rims
39 outer rims
40 openings
41 breach
[embodiment]
Fig. 2 to Fig. 5 discloses the liquid crystal indicator of the embodiment of the present invention, and wherein Fig. 2 is the exploded perspective view of liquid crystal indicator, and other diagrams illustrate other elements or the key character of liquid crystal indicator.
As shown in Figure 2, the liquid crystal indicator 20 of the embodiment of the present invention comprises a backlight module 21, a liquid crystal panel 29, a housing 28.In an embodiment, liquid crystal indicator be a kind of large scale for example 47 o'clock above display device, backlight modules 21 are backlight modules of a kind of straight-down negative, but are not limited to this.Backlight module 21 comprises a backboard 22, several light sources 23, and for example cold cathode fluorescent lamp or light emitting diode, be arranged on backboard 22.In addition, between backboard 22 and light source 23, can be provided with a reflecting plate 24 to increase the luminescence efficiency of light source 23.
In addition, in order to promote the efficient of light source 23, can be provided with a diffuser plate 25 on light source 23; Optimization for optical characteristics such as brightness, visual angle, homogeneitys, can be provided with an optic film set 26 on diffuser plate 25, optic film set 26 may comprise the combination of diffusion barrier, prism film, brightness enhancement film (BEF), reflective brightness enhancement film (DBEF) etc.
In addition, a framework 27 (hereinafter to be referred as inside casing 27, its material can be plastic cement) is arranged on optic film set 26.Inside casing 27 and housing 28 combinations are fixed between inside casing 27 and housing 28 liquid crystal panel 29; On the other hand, inside casing 27 and backboard 22 combinations are fixed between inside casing 27 and backboard 22 elements such as optic film set 26, diffuser plate 25.Simultaneously with reference to figure 3, for the die cost of saving huge ejection formation and the recycling rate that improves mould, inside casing 27 be by several independently frame section 30,31 consist of, each frame section 30,31 is penetrated by a mould respectively, its manufacturing cost is much smaller than the cost of single large mold.It should be noted that in an embodiment, each frame section 30,31 has a connecting structure (will in other graphic explanations) to be made with backboard 22 fixingly, and frame section 30,31 there is no each other connecting structure and makes each other and link.In addition, and unrestricted, the inside casing 27 of the present embodiment is a rectangle as illustration, has two long limits and two minor faces, and each grows that limit includes two frame sections 30 and each minor face only comprises a frame section 31.
Yet though 27 designs of above-mentioned inside casing of disassembling formula can be saved many manufacturing costs, the assembling variability can more integrated inside casing 17 height, the requirement that may therefore not reach QC.For example, Fig. 4 shows the partial enlarged drawing of Fig. 3, consider the weight of rectangle inside casing 27 palpus bearing liquid crystal display panels 29, therefore the frame section 30 on inside casing 27 each long limit and backboard 22 are with more firm structure, for example fix in the mode of screw (not shown), the frame section 31 of each minor face and backboard 22 fixing consider the assembling space deficiency, easy to assembly, save the factor such as screw cost, design frame section 31 has a breach 41, backboard 22 has a snap fit 32 at the correspondence position of breach 41, and both are fastened mutually.As shown in the figure, the fixing of snap fit 32 modes only has restraining of z direction, but restrains without effective in the degree of freedom of x and y direction, and this kind design is harmless for the inside casing 17 of integrate shaped type, but produces puzzlement for 27 of the inside casings of the formula of disassembling.As shown in Figure 5, aforementioned rectangle inside casing 27 is fixed in snap fit 32 modes in the frame section 31 of minor face with backboard 22, because the x direction is not restricted in, when short frame section 31 has ejection formation during residual stress, can make the frame section 31 of the minor face radian that turns up, except the image quality that affects liquid crystal indicator 20, and when QC checked, the size of the opening size of inside casing 27 or backlight module 21 can't reach requirement.
For the link that solves short frame section 31 and backboard 22 lacks built on the sand, a feasible way is with the screw locking, but this mode has the problem that assembling is consuming time, cost is higher, assembling space is not enough.
Fig. 6 discloses a feasible embodiment, for convenience of description with highlight key character, only illustrate the parts such as inside casing 27 and backboard 22 in figure, all the other elements of liquid crystal indicator can be same as shown in Figure 2.Inside casing 27 has an overhead kick 33 below short frame section 31, backboard 22 has a groove 34 at the correspondence position of overhead kick 33, and the combination of frame section 31 and backboard 22 is completed in overhead kick 33 with groove 34 fastenings.This fixed sturcture has enough steadinesss can restrain frame section 31 in the displacement of x direction and easy to assembly, this fixed sturcture does not limit the inside casing 27 that uses in the formula of disassembling yet simultaneously, also can use at traditional integrate shaped type inside casing 17 (as shown in Figure 1), but shortcoming is to disassemble comparatively difficulty, element as liquid crystal panel 19 or backlight module 21 needs repairing, and can need to spend the more time; In addition, the Design of Dies of inside casing 17 is also comparatively complicated, makes the down ratio of die cost also can't be satisfactory.
Fig. 7 to Fig. 9 discloses the liquid crystal indicator of preferred embodiment of the present invention.For convenience of description with highlight key character, only illustrate the parts such as inside casing 27 and backboard 22 in figure, all the other elements of liquid crystal indicator can be same as shown in Figure 2.
Fig. 7 shows the partial enlarged drawing of the inside casing of liquid crystal indicator of the present invention, inside casing can be the formula of the disassembling inside casing 27 as shown in Fig. 2,3, it can be also inside casing 17 as shown in Figure 1, and in figure, illustration is to be applied to disassemble formula inside casing 27, as previous embodiment, inside casing 27 comprises several frame sections 30,31 and consists of, and wherein has at least a frame section 31 to comprise at least one opening 40, and the appropriate location of opening arranges a block 35.
Fig. 8 shows the partial enlarged drawing of the backboard 22 of crystal device of the present invention, and backboard 22 has one and builds bridge 36 on the correspondence position of aforementioned link stopper 35.
Fig. 9 display box section 31 is completed figure with the assembling of backboard 22.Insert the bridge formation 36 of backboard 22 when the link stopper 35 of frame section 31, namely complete assembling.See through the combination of block 35 and bridge formation 36, can make frame section 31 can not produce the displacement of x direction.Consider easy to assembly and increase firmly, except the structure of block 35 and bridge formation 36, aforesaid snap fit 32 and breach 41 structures, the x degree of freedom reinforcement that snap fit 32 can't be restrained can be set also in other positions of frame section 31 and backboard 22.It should be noted that, link stopper 35 is arranged at the position of the comparatively close inner edge of opening 40 of frame section 31, and after making link stopper 35 and bridge formation 36 combinations, one bridge formation outer rim 38 of bridge formation 36 is positioned at same plane with the outer rim 39 (be applied in 17 of one-body molded inside casings as block 35 and be the outer rim 39 of inside casing) of frame section 31, and so design can make the space obtain more effectively to utilize.
In addition, in another embodiment, the structure of its structure and Fig. 7 to Fig. 9 embodiment is roughly the same, do not exist together only be to build bridge 36 with the location swap of block 35.Inside casing 27 comprises at least one bridge formation 36, and backboard 22 is provided with an opening 40 and opening is provided with a block 35 in 36 the correspondence position of building bridge, and block 35 36 is fixed between backboard 22 and inside casing 27 several light sources 23, diffuser plate 15, optic film set 26 in conjunction with building bridge.
Embodiment from the above mentioned, use block 35 and build bridge 36 through independent, the perhaps structure of overhead kick 33 and groove 34, or the structure of further arrange in pairs or groups snap fit 32 and breach 41, make inside casing obtain effectively constraint in the displacement of x direction, overcome the disappearance of prior art.In addition, said structure all has good property easy to assembly.Moreover, if above-mentioned each structure is applied to the inside casing 27 of the formula of disassembling, can further saves huge die cost and improve the recycling rate.According to above disclosure, liquid crystal indicator provided by the invention, the design of its inside casing and backboard, having met provides enough steadinesss, low manufacturing cost, easy to assembly etc. goal of the invention.
The above is only preferred embodiment of the present invention, is not to limit claim of the present invention; All other do not break away from the equivalence of completing under the spirit that invention discloses and change or modify, and all should be included in claim.
Claims (13)
1. liquid crystal indicator comprises:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
one inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises at least one opening, this opening is provided with a block, this backboard is provided with a bridge formation in the correspondence position of this block, this block makes this several light sources in conjunction with this bridge formation, this diffuser plate, this optic film set is fixed between this backboard and this inside casing, this inside casing comprises several frame sections, at least one frame section comprises at least one this opening and this block is set, this inside casing is that a rectangle has two long limit and two minor faces, each long limit and each minor face comprise respectively at least one frame section, this frame section of each of each minor face comprises at least one this opening and is provided with this block, at least one frame Duan Shang of this of each minor face comprises at least one snap fit, this backboard still comprises a breach in the correspondence position of this snap fit, this snap fit and this breach fasten and fix.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: these several frame sections there is no each other connecting structure and make each other and link, and each frame section is independent is combined with this backboard.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: this block and this bridge formation in conjunction with after, a bridge formation outer rim of this bridge formation and an outer rim of this inside casing are positioned at same plane.
4. liquid crystal indicator as claimed in claim 1, it is characterized in that: the size of this liquid crystal indicator was more than or equal to 47 o'clock.
5. liquid crystal indicator comprises:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
one inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises at least one bridge formation, this backboard is provided with an opening and this opening is provided with a block in the correspondence position of this bridge formation, this block makes this several light sources in conjunction with this bridge formation, this diffuser plate, this optic film set is fixed between this backboard and this inside casing, this inside casing comprises several frame sections, at least one frame section comprises at least one this bridge formation, this inside casing is that a rectangle has two long limit and two minor faces, each long limit and each minor face comprise respectively at least one frame section, this frame section of each of each minor face comprises at least one this bridge formation, at least one frame Duan Shang of this of each minor face comprises a snap fit, this backboard still comprises a breach in the correspondence position of this snap fit, this snap fit and this breach fasten and fix.
6. liquid crystal indicator as claimed in claim 5 is characterized in that: these several frame sections there is no each other connecting structure and make each other and link, and each frame section is independent is combined with this backboard.
7. liquid crystal indicator as claimed in claim 5 is characterized in that: this block and this bridge formation in conjunction with after, a bridge formation outer rim of this bridge formation and an outer rim of this inside casing are positioned at same plane.
8. liquid crystal indicator as claimed in claim 5, it is characterized in that: the size of this liquid crystal indicator was more than or equal to 47 o'clock.
9. liquid crystal indicator comprises:
One housing:
One liquid crystal panel; And
One backlight module comprises:
One backboard;
Several light sources are positioned at above this backboard;
One diffuser plate is positioned at above these several light sources;
One optic film set is positioned at above this diffuser plate;
One inside casing, this liquid crystal panel is fixed between this inside casing and this housing, and this inside casing comprises several frame sections, the below of at least one this frame section comprises an overhead kick, this backboard is provided with a groove in the correspondence position of this overhead kick, and this overhead kick is fixed between this backboard and this inside casing these several light sources, this diffuser plate, this optic film set in conjunction with this groove.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: these several frame sections there is no each other connecting structure and make each other and link, and each frame section is independent is combined with this backboard.
11. liquid crystal indicator as claimed in claim 10 is characterized in that: this inside casing is that a rectangle has two long limit and two minor faces, and each long limit and each minor face comprise respectively at least one frame section.
12. liquid crystal indicator as claimed in claim 11 is characterized in that: this frame section of each of each minor face comprises at least one this overhead kick.
13. liquid crystal indicator as claimed in claim 9 is characterized in that: this frame of each of each minor face Duan Shang comprises a snap fit, and this backboard still comprises a breach in the correspondence position of this snap fit, and this snap fit and this breach fasten and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165098 CN101988993B (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165098 CN101988993B (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101988993A CN101988993A (en) | 2011-03-23 |
| CN101988993B true CN101988993B (en) | 2013-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910165098 Expired - Fee Related CN101988993B (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988993B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392994B (en) * | 2011-11-18 | 2014-10-15 | 深圳市华星光电技术有限公司 | Back frame of panel display device, backlight system and panel liquid crystal display device |
| CN103489379B (en) * | 2013-09-27 | 2016-04-13 | 京东方科技集团股份有限公司 | Display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200983055Y (en) * | 2006-12-01 | 2007-11-28 | 群康科技(深圳)有限公司 | Backlight module assembly and LCD |
| CN101101406A (en) * | 2006-07-06 | 2008-01-09 | 瀚宇彩晶股份有限公司 | Backlight module and liquid crystal display device |
| CN101191950A (en) * | 2006-12-01 | 2008-06-04 | 瀚宇彩晶股份有限公司 | Backlight module and LCD device |
| EP1956424A1 (en) * | 2007-02-08 | 2008-08-13 | Funai Electric Co., Ltd. | Liquid crystal display device |
| CN101266353A (en) * | 2007-03-12 | 2008-09-17 | 瀚宇彩晶股份有限公司 | LCD device and its backlight module |
| CN101441355A (en) * | 2007-11-21 | 2009-05-27 | 苏州璨宇光学有限公司 | Outer frame of backlight module |
-
2009
- 2009-07-30 CN CN 200910165098 patent/CN101988993B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101406A (en) * | 2006-07-06 | 2008-01-09 | 瀚宇彩晶股份有限公司 | Backlight module and liquid crystal display device |
| CN200983055Y (en) * | 2006-12-01 | 2007-11-28 | 群康科技(深圳)有限公司 | Backlight module assembly and LCD |
| CN101191950A (en) * | 2006-12-01 | 2008-06-04 | 瀚宇彩晶股份有限公司 | Backlight module and LCD device |
| EP1956424A1 (en) * | 2007-02-08 | 2008-08-13 | Funai Electric Co., Ltd. | Liquid crystal display device |
| CN101266353A (en) * | 2007-03-12 | 2008-09-17 | 瀚宇彩晶股份有限公司 | LCD device and its backlight module |
| CN101441355A (en) * | 2007-11-21 | 2009-05-27 | 苏州璨宇光学有限公司 | Outer frame of backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101988993A (en) | 2011-03-23 |
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