CN101089700B - Liquid crystal module - Google Patents
Liquid crystal module Download PDFInfo
- Publication number
- CN101089700B CN101089700B CN2006100913763A CN200610091376A CN101089700B CN 101089700 B CN101089700 B CN 101089700B CN 2006100913763 A CN2006100913763 A CN 2006100913763A CN 200610091376 A CN200610091376 A CN 200610091376A CN 101089700 B CN101089700 B CN 101089700B
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- reflex housing
- liquid crystal
- crystal display
- guide plate
- display module
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Abstract
A liquid crystal display module is prepared as forming back light unit by the first reflection cover, the second reflection cover, a light source, a light guide plate, a front support frame and a back support frame; setting liquid crystal display face-plate on front support frame; arranging front frame above back light unit to sandwich liquid crystal display face-plate together with said front support frame; arranging back frame under back light unit and assembling back frame with front frame.
Description
Technical field
The invention relates to that a kind of image shows module, particularly relevant for a kind of liquid crystal display module (Liquid Crystal Display Module, LCM).
Background technology
Along with modern video signal development of technology, the liquid crystal display module has been used on the display screens of consumption electronic products such as mobile phone, notebook computer, PC and personal digital assistant in large quantities.Yet, because the display panels of liquid crystal display module itself does not have luminous function, therefore need below display panels, dispose back light unit providing display panels needed light source, and then make display panels reach the effect of demonstration.
Fig. 1 is the partial cutaway schematic of existing a kind of liquid crystal display module.Please refer to Fig. 1, existing liquid crystal display module 100 comprises a back light unit 110, a display panels 120, one a preceding frame (FrontBezel) 130 and an after-frame (Back Bezel) 140, and back light unit 110 comprises a cold cathode fluorescent lamp pipe (Cathode Cold Fluorescent Lamp, CCFL) 112, one reflex housing (LampReflector) 114, a light guide plate (Light Guide Plate, LGP) 116, one front baffle (FrontFrame) 118a and an afterframe (Back Frame) 118b.Cold cathode fluorescent lamp pipe 112, reflex housing 114 all are disposed on the afterframe 118b with light guide plate 116, and wherein cold cathode fluorescent lamp pipe 112 is to be positioned at reflex housing 114, and light guide plate 116 is to be positioned at cold cathode fluorescent lamp pipe 112 sides.
Accept above-mentionedly, display panels 120 is to be disposed on the front baffle 118a, and preceding frame 130 is to be disposed at back light unit 110 tops, and with front baffle 118a holding liquid crystal display panel 120.After-frame 140 is to be disposed at back light unit 110 belows, and with preceding frame 130 assemblings with fixing back light unit 110.
In addition, reflex housing 114 is to be used to collect the light (not illustrating) that cold cathode fluorescent lamp pipe 112 is sent, and light is provided to light guide plate 116.It should be noted that the normally integrated member of existing reflex housing 114, and reflex housing 114 can be surrounded cold cathode fluorescent lamp pipe 112 to avoid light leak with light guide plate 116.Light guide plate 116 is to be used for light is converted to area source (not illustrating), and area source is provided to display panels 120.Display panels 120 is to be used for area source is converted to image (not illustrating), to reach the effect of demonstration.
Yet,, often only can't provide light, so that liquid crystal display module 100 can't display image because cold cathode fluorescent lamp pipe 112 damages separately because the tenure of use of cold cathode fluorescent lamp pipe 112 is shorter.Existing skill be if will change or keep in repair cold cathode fluorescent lamp pipe 112, at first needs after-frame 140 from preceding frame 130 dismountings, so that preceding frame 130 separates with back light unit 110, and then display panels 120 dismantled from front baffle 118a.
So far after the step, cold cathode fluorescent lamp pipe 112 remains be reflected cover 114 and light guide plate 116 encirclements, therefore must light guide plate 116 be dismantled from afterframe 118b again, cold cathode fluorescent lamp pipe 112 could be taken out in reflex housing 114.In disassembling process, except expending a large amount of man-hours, make that the maintenance efficiency of liquid crystal display module 100 is low, more likely damage display panels 120 or other members of liquid crystal display module 100 accidentally, cause the maintenance cost of liquid crystal display module 100 to improve in the process of disassembling.
In addition, surging along with environmental consciousness is when liquid crystal display module 100 damages and need scrap the time, environment protection requirement not directly abandons liquid crystal display module 100, and must earlier cold cathode fluorescent lamp pipe 112 be reclaimed.So, still need carry out the above-mentioned complicated step of disassembling taking out cold cathode fluorescent lamp pipe 112, thereby expend a large amount of man-hours.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of liquid crystal display module, to solve the problem that the maintenance of liquid crystal display module is difficult for.
For reaching above-mentioned purpose, the present invention proposes a kind of liquid crystal display module, it comprises a back light unit, a display panels, a preceding frame and an after-frame, and back light unit comprises one first reflex housing, one second reflex housing, a light source, a light guide plate, a front baffle and an afterframe.First reflex housing, second reflex housing, light source and light guide plate all are disposed on the afterframe, and wherein second reflex housing is to be bearing on first reflex housing, and form an accommodation space with first reflex housing.Light source is to be disposed in the accommodation space, and light guide plate is to be disposed at by the light source, and the part light guide plate is to be arranged in accommodation space.Front baffle is disposed on first reflex housing, and display panels is to be disposed on the front baffle, and preceding frame is to be disposed at back light unit top, and with front baffle holding liquid crystal display panel.After-frame is to be disposed at the back light unit below, and assembles with preceding frame.When after-frame after the dismounting of preceding frame, second reflex housing is suitable for from the afterframe dismounting, to separate with first reflex housing.
In one embodiment of this invention, aforesaid after-frame can with afterframe clamping second reflex housing.
In one embodiment of this invention, aforesaid second reflex housing can be bearing on the light guide plate.
In one embodiment of this invention, aforesaid first reflex housing can be bearing on the light guide plate.
In one embodiment of this invention, aforesaid second reflex housing can engage with first reflex housing, and wherein second reflex housing has a protuberance, and first reflex housing has a recess of collocation protuberance, and protuberance is to be disposed in the recess.
In one embodiment of this invention, the material of aforesaid first reflex housing and second reflex housing can comprise metal or highly reflective cardboard.
In one embodiment of this invention, aforesaid light source comprises a line source or a plurality of pointolite, and wherein line source can be the cold cathode fluorescent lamp pipe, and pointolite can be light emitting diode (Light Emitting Diode, LED).
In one embodiment of this invention, aforesaid light guide plate can be plate light guide plate or wedge shape light guide plate.
In one embodiment of this invention, aforesaid module backlight more comprises a blooming piece (0pticFilm), be disposed between light guide plate and the display panels, wherein blooming piece can comprise diffusion sheet (Diffuser Plate), brightening piece (Light Enhanced Plate) and/or prismatic lens (PrismPlate).
In one embodiment of this invention, aforesaid display panels can be penetration (transmissivetype) display panels or semi-penetration, semi-reflective (transflect ive type) display panels.
In sum, in liquid crystal display module of the present invention, with after-frame after the dismounting of preceding frame, because first reflex housing and second reflex housing are separable two members, so second reflex housing can be exposed light source from the afterframe dismounting, conveniently to change or to keep in repair light source.Whereby, can simplify the maintenance flow of liquid crystal display module, to improve the maintenance efficiency of liquid crystal display module.
Description of drawings
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and cooperate appended graphicly, elaborate.
Fig. 1 is the partial cutaway schematic of existing a kind of liquid crystal display module.
Fig. 2 A is the partial cutaway schematic according to the liquid crystal display module of one embodiment of the invention.
Fig. 2 B disassembles synoptic diagram for the part of the liquid crystal display module of Fig. 2 A.
Fig. 3 A and Fig. 3 B are the partial cutaway schematic according to two kinds of liquid crystal display modules of one embodiment of the invention.
Fig. 4 A～Fig. 4 C is the diagrammatic cross-section of first reflex housing, second reflex housing and light source according to one embodiment of the invention.
Main element symbol description among the figure
100: the liquid crystal display module
110: back light unit
112: the cold cathode fluorescent lamp pipe
114: reflex housing
116: light guide plate
118a: front baffle
118b: afterframe
120: display panels
130: preceding frame
140: after-frame
200,200 ＇, 200 ": the liquid crystal display module
210: back light unit
211,211a, 211b, 211c: first reflex housing
211a ＇: protuberance
212,212a, 212b, 212c, 212 ＇, 212 ": second reflex housing
212a ＇: recess
214: light source
216: light guide plate
217: blooming piece
218a: front baffle
218b: afterframe
220: display panels
230: preceding frame
240: after-frame
S: accommodation space
Embodiment
Please refer to Fig. 2 A and Fig. 2 B, Fig. 2 A is the partial cutaway schematic according to the liquid crystal display module of one embodiment of the invention, and Fig. 2 B disassembles synoptic diagram for the part of the liquid crystal display module of Fig. 2 A.Liquid crystal display module 200 of the present invention comprises a back light unit 210, a display panels 220, one a preceding frame 230 and an after-frame 240, and back light unit 210 comprises one first reflex housing 211, one second reflex housing 212, a light source 214, a light guide plate 216 1 front baffle 218a and an afterframe 218b.First reflex housing 211, second reflex housing 212, light source 214 all are disposed on the afterframe 218b with light guide plate 216, and front baffle 218a is disposed on first reflex housing 211, wherein second reflex housing 212 is to be bearing on first reflex housing 211, and forms an accommodation space S with first reflex housing 211.Light source 214 is to be disposed among the accommodation space S, and light guide plate 216 is to be disposed at light source 214 sides, and part light guide plate 216 is to be arranged in accommodation space S.
In addition, first reflex housing 211 and second reflex housing 212 are suitable for collecting the light (not illustrating) that light source 214 is sent, and light is provided to light guide plate 216.Light guide plate 216 is suitable for light is converted to area source (not illustrating), and area source is provided to display panels 220.Display panels 220 is suitable for area source is converted to image (not illustrating), to reach the effect of demonstration.
Need readjust the position of light source when light source 214 location changes (for example liquid crystal display module 200 bumps), or light source 214 damages and when needing to change light source 214 maintenances, the present invention only needs after-frame 240 is dismantled to expose second reflex housing 212 from preceding frame 230, then second reflex housing 212 is separated with first reflex housing 211 from afterframe 218b dismounting, promptly expose light source 214.Afterwards, just can adjust the position of light source 214, or maintain and replace light source 214.So, liquid crystal display module 200 of the present invention can have higher heavy industry efficient and maintenance efficiency.
Because liquid crystal display module 200 of the present invention is in the aforementioned process of disassembling, need not dismantle display panels 220 or light guide plate 216, therefore can keep in repair light source 214, can avoid display panels 220 or light guide plate 216 is damaged because of dismantling accidentally.Particularly, it is to be packaged in chip (Chip onFilm that many precision components as drive integrated circult (Driver IC) are arranged in the display panels 220, COF) on, and the present invention simplifies the required step of maintenance light source 214, making no longer needs to dismantle display panels 220, so can reduce the impaired chance of precision component, and avoid foreign matter to enter in display panels 220 or the light guide plate 216.
Refer again to Fig. 2 A, in the present embodiment, light source 214 is a line source, and particularly, light source 214 can be the cold cathode fluorescent lamp pipe.But, the present invention does not limit the kind of light source 214, and for example, light source 214 can also be the pointolite as light emitting diode.In addition, the present invention does not also limit the light guide plate 216 or the kind of display panels 220, for example, light guide plate 216 can be plate light guide plate, wedge shape light guide plate or the light guide plate of other suitable shapes, and display panels 220 can be penetrate through type liquid crystal display board or semi-penetrating and semi-reflective liquid crystal display panel.
For further promoting the display quality of liquid crystal display module 200, back light unit 210 also can comprise a blooming piece 217, is disposed between light guide plate 216 and the display panels 220.In the present embodiment, blooming piece 217 for example be selected from diffusion sheet, prismatic lens, brightening piece and combination thereof wherein one.Whereby, light guide plate 216 can provide area source more even and more high brightness to display panels 220, so that liquid crystal display module 200 has better display quality.
In addition, the material of first reflex housing 211 and second reflex housing 212 can have the material of high reflectance for metal, highly reflective cardboard or other, but the present invention does not limit the kind of first reflex housing 211 and second reflex housing, 212 materials.In the present embodiment, first reflex housing 211 for example is to be bearing on the light guide plate 216, to improve first reflex housing, 211 collection light and to provide to the efficient of light guide plate 216.In addition, although in the present embodiment, after-frame 240 be with afterframe 218b clamping second reflex housing 212 so that second reflex housing 212 is not bearing on the light guide plate 216.But, in other embodiments, second reflex housing 212 can also be bearing on the light guide plate 216.Below, the diagram of will arranging in pairs or groups describes.
Please refer to Fig. 3 A and Fig. 3 B, Fig. 3 A and Fig. 3 B are the partial cutaway schematic according to two kinds of liquid crystal display modules of one embodiment of the invention.Liquid crystal display module 200 ＇, 200 of present embodiment " similar to the liquid crystal display module 200 of Fig. 2 A; that its difference is that liquid crystal display module 200 ＇, 200 " in second reflex housing, 212 ＇, 212 " are to be bearing on the light guide plate 216, to improve second reflex housing, 212 ＇, 212 " collect light and provide to the efficient of light guide plate 216.
Subsidiary one what carry is that " in, although part second reflex housing 212 is arranged " is between light guide plate 216 and afterframe 218b at liquid crystal display module 200, and makes second reflex housing 212 " difficultly dismantles from afterframe 218b.But, " material can comprise elastic body to second reflex housing 212 of the present invention, so that second reflex housing 212 " has elasticity, and can disassemble from afterframe 218b easily.
It should be noted that, main spirit of the present invention is to utilize separable first reflex housing and second reflex housing to form accommodation space to hold light source, and when needs repair and replacement light source, second reflex housing is dismantled from afterframe, and separate to expose light source with first reflex housing.Aforementioned a plurality of embodiment only is to specialize spirit of the present invention but not in order to limit the present invention.And the present invention does not limit the relative position relation between second reflex housing, light guide plate and the afterframe.
In addition, the present invention does not also limit the mode that second reflex housing is bearing on first reflex housing, below will cooperate diagram to describe again.
Fig. 4 A～Fig. 4 C is the diagrammatic cross-section of first reflex housing, second reflex housing and light source according to one embodiment of the invention.Please refer to Fig. 4 A, in the present embodiment, the second reflex housing 212a for example is breasting to the first reflex housing 211a in the mode of engaging.Particularly be, the second reflex housing 212a has a protuberance 212a ＇, and the first reflex housing 211a has the recess 211a ＇ of collocation protuberance 212a ＇, and protuberance 212a ＇ is arranged in recess 211a ＇.Refer again to Fig. 4 B, in the present embodiment, the second reflex housing 212b is breasting to the first reflex housing 211b in partly overlapping mode, and wherein the overlapping part of the first reflex housing 211b and the second reflex housing 212b has thin thickness.
In addition, the present invention does not also limit the shape and the size of first reflex housing and second reflex housing.Please refer to Fig. 4 C, in the present embodiment, the shape of the second reflex housing 212c for example is the L type, and the volume of the second reflex housing 212c is greater than the volume of the first reflex housing 211c.What emphasize once more is, above-mentioned a plurality of embodiment are only for specializing spirit of the present invention, and the personnel that are familiar with this technology are when extending deduction voluntarily with reference to above stated specification, precisely because must belong to category of the present invention.
In sum, liquid crystal display module of the present invention has following advantage at least:
One, with after-frame after the dismounting of preceding frame because first reflex housing is separable two members with second reflex housing, thus second reflex housing can be dismantled and be exposed light source from afterframe, conveniently to change or to keep in repair light source.Whereby, can simplify the maintenance flow step of liquid crystal display module, to improve the maintenance and the heavy industry efficient of liquid crystal display module.
Two, in the aforementioned process of disassembling, owing to do not need to dismantle other members (as display panels, light guide plate or blooming piece) of liquid crystal display module, can keep in repair light source, therefore can reduce precision component because of dismantling careless and impaired chance, and avoid foreign matter to enter in display panels, light guide plate or the blooming piece.
Three, in the time of need scrapping when the damage of liquid crystal display module, the quickly-detachable light source reclaims, and is beneficial to the promotion of efforts at environmental protection.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is with being as the criterion that accompanying claims were defined.
Claims (10)
1. a liquid crystal display module is characterized in that, comprising:
One back light unit, described back light unit comprises:
One first reflex housing;
One second reflex housing is bearing on this first reflex housing, and forms an accommodation space with this first reflex housing;
One light source is disposed in this accommodation space;
One light guide plate is disposed at by this light source, and this light guide plate of part is to be arranged in this accommodation space;
One afterframe, and this first reflex housing, this second reflex housing, this light source and this light guide plate all are disposed on this afterframe;
One front baffle is disposed on this first reflex housing;
One display panels is disposed on this front baffle;
Frame before one is disposed at this back light unit top, and with this this display panels of front baffle clamping; And
One after-frame is disposed at this back light unit below, and assembles with this preceding frame,
Wherein, after the frame dismounting, this second reflex housing is suitable for from this afterframe dismounting, to separate with this first reflex housing before this after-frame is somebody's turn to do certainly.
2. liquid crystal display module according to claim 1 is characterized in that, described after-frame and described second reflex housing of described afterframe clamping.
3. liquid crystal display module according to claim 1 is characterized in that, described second reflex housing is to be bearing on the described light guide plate.
4. liquid crystal display module according to claim 1 is characterized in that, described first reflex housing is to be bearing on the described light guide plate.
5. liquid crystal display module according to claim 1 is characterized in that, described second reflex housing engages with described first reflex housing.
6. liquid crystal display module according to claim 5 is characterized in that, described second reflex housing has a protuberance, and described first reflex housing has a recess of this protuberance of collocation, and this protuberance is to be disposed in this recess.
7. liquid crystal display module according to claim 1 is characterized in that, the material of described first reflex housing and described second reflex housing comprises metal or highly reflective cardboard.
8. liquid crystal display module according to claim 1 is characterized in that, described light source is a cold cathode fluorescent lamp pipe.
9. liquid crystal display module according to claim 1 is characterized in that, described light source is a plurality of light emitting diodes.
10. liquid crystal display module according to claim 1 is characterized in that, described light guide plate comprises a plate light guide plate or a wedge shape light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100913763A CN101089700B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100913763A CN101089700B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101089700A CN101089700A (en) | 2007-12-19 |
| CN101089700B true CN101089700B (en) | 2010-09-08 |
Family
ID=38943112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100913763A Expired - Fee Related CN101089700B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal module |
Country Status (1)
| Country | Link |
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| CN (1) | CN101089700B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968579B (en) * | 2009-07-27 | 2013-01-02 | 群康科技(深圳)有限公司 | Liquid crystal display and assembling method thereof |
| KR101693655B1 (en) * | 2009-11-12 | 2017-01-06 | 엘지전자 주식회사 | Back Light Unit And Liquid Crystal Display Device Comprising Thereof |
| USRE46781E1 (en) | 2009-11-12 | 2018-04-10 | Lg Electronics Inc. | Backlight unit and liquid crystal display including the same |
| KR20110103074A (en) | 2010-03-12 | 2011-09-20 | 엘지전자 주식회사 | Display apparatus |
| CN101865376A (en) * | 2010-04-21 | 2010-10-20 | 友达光电股份有限公司 | Backlight module, display and manufacturing method of reflecting cover of backlight module |
| CN202101063U (en) * | 2011-05-19 | 2012-01-04 | 深圳市华星光电技术有限公司 | LED light source structure and backlight module |
| US8845171B2 (en) | 2011-05-19 | 2014-09-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED light-source structure and backlight module |
| CN102494269B (en) * | 2011-11-22 | 2014-05-21 | 深圳市华星光电技术有限公司 | Backlight module of display device |
| US9244299B2 (en) | 2011-11-22 | 2016-01-26 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module of display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515933A (en) * | 2003-01-09 | 2004-07-28 | 友达光电股份有限公司 | Liquid crystal display backlight module device |
| CN1580896A (en) * | 2003-08-06 | 2005-02-16 | 友达光电股份有限公司 | Sidelight back light module |
| CN1766707A (en) * | 2004-10-28 | 2006-05-03 | 中华映管股份有限公司 | Backlight module and liquid crystal display using the same |
-
2006
- 2006-06-14 CN CN2006100913763A patent/CN101089700B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515933A (en) * | 2003-01-09 | 2004-07-28 | 友达光电股份有限公司 | Liquid crystal display backlight module device |
| CN1580896A (en) * | 2003-08-06 | 2005-02-16 | 友达光电股份有限公司 | Sidelight back light module |
| CN1766707A (en) * | 2004-10-28 | 2006-05-03 | 中华映管股份有限公司 | Backlight module and liquid crystal display using the same |
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| Publication number | Publication date |
|---|---|
| CN101089700A (en) | 2007-12-19 |
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Granted publication date: 20100908 Termination date: 20190614 |