CN1779520A - Backlight module and liquid-crystal display module - Google Patents
Backlight module and liquid-crystal display module Download PDFInfo
- Publication number
- CN1779520A CN1779520A CN 200410091582 CN200410091582A CN1779520A CN 1779520 A CN1779520 A CN 1779520A CN 200410091582 CN200410091582 CN 200410091582 CN 200410091582 A CN200410091582 A CN 200410091582A CN 1779520 A CN1779520 A CN 1779520A
- Authority
- CN
- China
- Prior art keywords
- positioning tab
- light guide
- guide plate
- backboard
- backlight module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A back light module consists of back plate including base part and positioning trip, light guiding plate including a positioning convex lug with checking in groove, fixing frame being set on back plate of light guiding plate and being set with containing slot for containing said positioning convex lug and positioning trip as containing slot being fixed against with two sides of positioning convex lug.
Description
Technical field
The invention relates to a kind of Backlight module and liquid crystal display module, and particularly about a kind of invention that has the Backlight module and liquid crystal display module of preferable pooling feature for external force.
Background technology
The assembling mode of known LCD can be divided into back side assembly type and positive assembly type, wherein positive modular backlight module, its assembling sequence is backboard, light guide plate, blooming piece and glue frame, and light guide plate utilizes the ear of its protrusion to position on backboard.
Figure 1A is the stereographic map of known a kind of positive assembly type backlight module, and Figure 1B is the backboard lateral margin of Figure 1A and near the partial top view the light guide plate positioning tab.Shown in Figure 1A and 1B, backlight module 100 comprises backboard 110, light guide plate 120, fixed frame 130 and blooming piece 140, the lateral margin 112 that its dorsulum 110 has bottom 114 and is vertically connected at 114 peripheries, bottom can be for the space of light guide plate 120 and blooming piece 140 placements to constitute.In addition, lateral margin 112 has opening 112a, can make after light guide plate 120 and blooming piece 140 and backboard 110 assemblings, the positioning tab 120a and the positioning tab 140a of light guide plate 120 and blooming piece 140 peripheries protrude from lateral margin 112 by opening 112a, wherein positioning tab 120a and positioning tab 140a are abutted against in opening 112a, so that light guide plate 120 is positioned on the backboard 110 with blooming piece 140.In addition, fixed frame 130 is arranged on the backboard 110, with the position of lightguide plate fixing 120 and blooming piece 140.
It should be noted that, as is generally known because, in the process of making backboard 110, may produce the burr 116 of out-of-flatness because of the cutting of cutter at the inner edge of opening 112a, therefore when backboard 110 is subjected to external impacts, make burr 116 position contacting of the positioning tab 120a of light guide plate 120 and opening 112a inner edge produce the phenomenon of stress raisers easily, thereby cause positioning tab 120a to be subjected to stress and damage or rupture.In addition, when being assembled to light guide plate 120 or blooming piece 140 on the backboard 110, also may cause the packaging qualification rate decline of backlight module 100 because contact with burr 116 and make light guide plate 120 or blooming piece 140 be damaged.
Summary of the invention
Purpose of the present invention just provides a kind of backlight module, and this backlight module can be avoided the stress raisers on the light guide plate, to strengthen the tolerances of light guide plate for external impacts.
A further object of the present invention provides a kind of LCD MODULE, and this LCD MODULE is used above-mentioned backlight module, and therefore the stress raisers that produced when carrying light guide plate to reduce can have higher reliability and packaging qualification rate.
The present invention proposes a kind of backlight module, comprises backboard, light guide plate and fixed frame, and its dorsulum comprises bottom and the location trip that is vertically installed in bottom periphery.Light guide plate is arranged on the bottom of backboard, wherein encloses first positioning tab with outside horizontal-extending outside the light guide plate, and end face has draw-in groove before first positioning tab, and the location trip is positioned at draw-in groove.Fixed frame is arranged on light guide plate and the backboard, and the position corresponding to first positioning tab of this fixed frame has holding tank, and in order to hold first positioning tab and location trip, and wall is abutted against in the both sides of first positioning tab within the holding tank.
The present invention proposes a kind of LCD MODULE, comprises backlight module and display panels, and wherein backlight module comprises backboard, light guide plate and fixed frame, and backboard comprises bottom and the location trip that is vertically installed in bottom periphery.Light guide plate is arranged on the bottom of backboard, wherein encloses first positioning tab with outside horizontal-extending outside the light guide plate, and end face has draw-in groove before first positioning tab, and the location trip is positioned at draw-in groove.In addition, fixed frame is arranged on light guide plate and the backboard, and the position corresponding to first positioning tab of fixed frame has holding tank, and in order to hold first positioning tab and location trip, wherein wall is abutted against in the both sides of first positioning tab within the holding tank.In addition, display panels is arranged on the fixed frame.
Based on above-mentioned explanation, the cooperating to come of the present invention's backlight module and the LCD MODULE draw-in groove by the location trip on the backboard and light guide plate carried out coarse positioning to light guide plate, and be abutted against the positioning tab of light guide plate by fixed frame, so that preferable buffering effect to be provided, thereby has higher reliability.
State with other purpose, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Figure 1A is the stereographic map of known a kind of positive assembly type backlight module.
Figure 1B is the backboard lateral margin of Figure 1A and near the partial top view the light guide plate positioning tab.
Fig. 2 is the three-dimensional exploded view of a kind of backlight module of a preferred embodiment of the present invention.
Fig. 3 is the sectional view of the backlight module of Fig. 2.
Fig. 4 A～4C is the assembling flow path synoptic diagram of a kind of backlight module of the present invention's preferred embodiment.
The side diagrammatic cross-section that Fig. 5 finishes for the present invention's backlight module assembling.
Fig. 6 is the diagrammatic cross-section of the LCD MODULE of one of the present invention preferred embodiment.
Main element indicates explanation
100: known backlight module
110: backboard
112: lateral margin
112a: opening
120: light guide plate
120a, 140a: positioning tab
130: fixed frame
140: blooming piece
200: the present invention's backlight module
210: backboard
212: the bottom
214: the location trip
220: light guide plate
220a, 240a: positioning tab
224: draw-in groove
230: fixed frame
232: holding tank
234: chamfering
240: blooming piece
244: bayonet socket
D1, d2, d3: width
Embodiment
Please refer to Fig. 2 and 3, wherein Fig. 2 is the three-dimensional exploded view of a kind of backlight module of a preferred embodiment of the present invention, and Fig. 3 is the sectional view of the backlight module of Fig. 2.Backlight module 200 comprises backboard 210, light guide plate 220 and fixed frame 230, and its dorsulum 210 comprises bottom 212 and the location trip 214 that is vertically installed in bottom periphery, and bottom 212 for example is one-body molded design with location trip 214.In addition, light guide plate 220 is arranged on the bottom 212 of backboard 210, wherein encloses the positioning tab 220a with outside horizontal-extending outside the light guide plate 220, and end face has draw-in groove 224 before this positioning tab 220a, and location trip 214 is positioned at draw-in groove 224.In addition, fixed frame 230 is arranged on light guide plate 220 and the backboard 210, the position corresponding to positioning tab 220a of fixed frame 230 has holding tank 232, and in order to hold positioning tab 220a and location trip 214, and wall is abutted against in the both sides of positioning tab 220a within the holding tank 232.What deserves to be mentioned is that the opening part of the holding tank 232 of fixed frame 230 for example can be provided with chamfering 234, this chamfering 234 for example is corner cut or arc angle, the smooth-going degree when helping to improve fixed frame 230 with positioning tab 220a assembling.
Refer again to Fig. 2 and 3, in the present embodiment, backlight module 200 for example also comprises blooming piece 240, be arranged between light guide plate 220 and the fixed frame 230, and this blooming piece 240 for example is a diffusion sheet.In addition, enclose another positioning tab 240a outside the blooming piece 240, be positioned at holding tank 232, and edge has card 244 before this positioning tab 240a, in order to be placed on the trip 214 of location, to reach the effect of location with outside horizontal-extending.In preferred embodiment, between the draw-in groove 224 of light guide plate 220 and the location trip 214 for example is loose fit (loose fit), wherein the draw-in groove 224 of light guide plate 220 has width d1, greater than the width d2 of location trip 214, so that light guide plate 220 can be made move left and right slightly in the horizontal direction.
In addition, for example be wringing fit (tight fit) between the card 244 of blooming piece 240 and the location trip 214, wherein the card 244 of blooming piece 240 has width d3, and is close with the width d2 of location trip 214, to form friction tight state with location trip 214.In addition, in preferred embodiment, contract in the both sides than the positioning tab 220a of light guide plate 220 in the both sides of the positioning tab 240a of blooming piece 240, wall is urged to the two ends of blooming piece 240 within the holding tank 232 to avoid, thereby it is smooth in the situation generation of light guide plate 220 to make blooming piece 240 fail.
In order to be described in more detail the present invention's feature, hereinafter to enumerate a kind of assemble method of stating backlight module on the present invention.Please refer to Fig. 4 A～4C and Fig. 5, wherein Fig. 4 A～4C is the assembling flow path synoptic diagram of a kind of backlight module of the present invention's preferred embodiment, and Fig. 5 diagrammatic cross-section of finishing of backlight module assembling for this reason.
At first, shown in Fig. 4 A, backboard 210 and light guide plate 220 are provided, and light guide plate 220 is positioned on the bottom 212 of backboard 210, the location trip 214 of its dorsulum 210 is placed in the draw-in groove 224 of positioning tab 220a front end face of light guide plate 220, and draw-in groove 224 and location trip 214 are the state of loose fit.
Then, shown in Fig. 4 B, blooming piece 240 is arranged on the light guide plate 220, and the bayonet socket 244 on the positioning tab 240a of blooming piece 240 is placed on the trip 214 of location, the state that is wringing fit of bayonet socket 244 and location trip 214 wherein is to position by 214 pairs of blooming pieces 240 of location trip.
Afterwards, shown in Fig. 4 C and 5, fixed frame 230 is arranged on the backboard 210, and makes the positioning tab 240a of positioning tab 220a, blooming piece 240 of light guide plate 220 and the holding tank 232 that location trip 214 correspondences enter fixed frame 230.Wherein, because the opening part of holding tank 232 is provided with chamfering 234, and positioning tab 220a and location trip 214 be the state of loose fit, and therefore when fixed frame 230 was from top to bottom assembled, positioning tab 220a can take advantage of a situation and slide in the holding tank 232.
Please refer to Fig. 6, this figure is the diagrammatic cross-section of a kind of LCD MODULE of one of the present invention preferred embodiment.LCD MODULE 400 is made of display panels 300 and above-mentioned backlight module 200, wherein display panels 300 is arranged on the fixed frame 230 of backlight module 200, and backlight module 200 required light source when providing display panels 300 to show.
In sum, the present invention's Backlight module and liquid crystal display module has following feature and advantage at least:
(1) holding tank by fixed frame is abutted against light guide plate, thereby preferable buffering effect can be provided, and then improves the reliability and the packaging qualification rate of backlight module and LCD MODULE.
(2) the location trip of backboard can provide the function of coarse positioning when light guide plate is assembled, but and the fixed optics diaphragm, be beneficial to the assembling of subsequent fixed frame.
(3) contract in the positioning tab of positioning tab both sides than light guide plate of blooming piece, thereby can avoid fixed frame compressing blooming piece two ends and make the problem of blooming piece perk.
(4) opening of the holding tank of fixed frame can have chamfer design, and the loose fit of positioning tab that can be by light guide plate and the location trip of backboard, makes that the positioning tab of light guide plate can slip in the holding tank smoothly when assembling.
Though the present invention with preferred embodiment openly as above; right its is not in order to limit the present invention; the ordinary skill of any technical field that the present invention belongs to; in thought that does not break away from the present invention and scope; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking claims person of defining.
Claims (14)
1. backlight module is characterized in that comprising:
Backboard comprises bottom and the location trip that is vertically installed in this bottom periphery;
Light guide plate is arranged on this bottom of this backboard, wherein encloses first positioning tab with outside horizontal-extending outside this light guide plate, and end face has draw-in groove before this first positioning tab, and this location trip is positioned at this draw-in groove; And
Fixed frame, be arranged on this light guide plate and this backboard, the position corresponding to this first positioning tab of this fixed frame has holding tank, and in order to hold this first positioning tab and this location trip, wherein wall is abutted against in the both sides of this first positioning tab within this holding tank.
2. the backlight module according to claim 1, it is characterized in that also comprising blooming piece, be arranged between this light guide plate and this fixed frame, enclose second positioning tab outside this blooming piece with outside horizontal-extending, be positioned at this holding tank, and edge has bayonet socket before this second positioning tab, in order to be placed on this location trip.
3. the backlight module according to claim 2 is characterized in that being loose fit between this draw-in groove of this light guide plate and this location trip, and this bayonet socket of this blooming piece to locate between the trip with this be wringing fit.
4. the backlight module according to claim 2 is characterized in that contracting in the both sides of both sides than this first positioning tab of this second positioning tab.
5. the backlight module according to claim 1 is characterized in that the opening part of this holding tank is provided with chamfering.
6. the backlight module according to claim 5 is characterized in that this chamfering comprises a kind of in corner cut and the arc angle.
7. the backlight module according to claim 1 is characterized in that this backboard is formed in one.
8. LCD MODULE is characterized in that comprising:
Backlight module comprises:
Backboard comprises bottom and the location trip that is vertically installed in this bottom periphery;
Light guide plate is arranged on this bottom of this backboard, wherein encloses first positioning tab with outside horizontal-extending outside this light guide plate, and end face has draw-in groove before this first positioning tab, and this location trip is positioned at this draw-in groove;
Fixed frame, be arranged on this light guide plate and this backboard, the position corresponding to this first positioning tab of this fixed frame has holding tank, and in order to hold this first positioning tab and this location trip, wherein wall is abutted against in the both sides of this first positioning tab within this holding tank; And
Display panels is arranged on this fixed frame.
9. described according to Claim 8 LCD MODULE, it is characterized in that also comprising blooming piece, be arranged between this light guide plate and this fixed frame, enclose second positioning tab outside this blooming piece with outside horizontal-extending, be positioned at this holding tank, and edge has bayonet socket before this second positioning tab, in order to be placed on this location trip.
10. the LCD MODULE according to claim 9 is characterized in that being loose fit between this draw-in groove of this light guide plate and this location trip, and this bayonet socket of this blooming piece to locate between the trip with this be wringing fit.
11. the LCD MODULE according to claim 9 is characterized in that contracting in the both sides of both sides than this first positioning tab of this second positioning tab.
12. described according to Claim 8 LCD MODULE is characterized in that the opening part of this holding tank is provided with chamfering.
13. the LCD MODULE according to claim 12 is characterized in that this chamfering comprises a kind of in corner cut and the arc angle.
14. described according to Claim 8 LCD MODULE is characterized in that this backboard is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100915825A CN100373228C (en) | 2004-11-19 | 2004-11-19 | Backlight module and liquid-crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100915825A CN100373228C (en) | 2004-11-19 | 2004-11-19 | Backlight module and liquid-crystal display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1779520A true CN1779520A (en) | 2006-05-31 |
| CN100373228C CN100373228C (en) | 2008-03-05 |
Family
ID=36769904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100915825A Expired - Fee Related CN100373228C (en) | 2004-11-19 | 2004-11-19 | Backlight module and liquid-crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100373228C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434983C (en) * | 2006-12-26 | 2008-11-19 | 友达光电股份有限公司 | Panel display module |
| CN101392895B (en) * | 2008-10-08 | 2010-06-02 | 友达光电（苏州）有限公司 | Backlight module |
| US7883259B2 (en) | 2008-12-12 | 2011-02-08 | Au Optronics Corp. | Backlight module |
| CN102654601A (en) * | 2012-05-10 | 2012-09-05 | 深圳市华星光电技术有限公司 | Light guide plate with buffer protection fixed structure and liquid crystal display (LCD) device thereof |
| CN102679235A (en) * | 2011-03-11 | 2012-09-19 | 常州天禄光电科技有限公司 | Backlight module |
| CN105674145A (en) * | 2016-01-05 | 2016-06-15 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN106989319A (en) * | 2014-05-23 | 2017-07-28 | 瑞仪(广州)光电子器件有限公司 | Back plate assembly and backlight module |
| CN109785744A (en) * | 2018-12-25 | 2019-05-21 | 友达光电（昆山）有限公司 | Display device and the terminal for using the display device |
| WO2019214451A1 (en) * | 2018-05-09 | 2019-11-14 | 京东方科技集团股份有限公司 | Backlight source module and display device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8928833B2 (en) | 2011-11-29 | 2015-01-06 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device |
| CN102494273A (en) * | 2011-11-29 | 2012-06-13 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100739527B1 (en) * | 2000-10-13 | 2007-07-13 | 삼성전자주식회사 | Backlight unit for liquid crystal display device |
| KR100840715B1 (en) * | 2002-05-28 | 2008-06-23 | 삼성전자주식회사 | Back light assembly and liquid crystal display having the same |
| CN1266520C (en) * | 2002-11-01 | 2006-07-26 | 友达光电股份有限公司 | Assembly structure of display poor light mould set |
-
2004
- 2004-11-19 CN CNB2004100915825A patent/CN100373228C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434983C (en) * | 2006-12-26 | 2008-11-19 | 友达光电股份有限公司 | Panel display module |
| CN101392895B (en) * | 2008-10-08 | 2010-06-02 | 友达光电（苏州）有限公司 | Backlight module |
| US7883259B2 (en) | 2008-12-12 | 2011-02-08 | Au Optronics Corp. | Backlight module |
| CN102679235A (en) * | 2011-03-11 | 2012-09-19 | 常州天禄光电科技有限公司 | Backlight module |
| CN102654601A (en) * | 2012-05-10 | 2012-09-05 | 深圳市华星光电技术有限公司 | Light guide plate with buffer protection fixed structure and liquid crystal display (LCD) device thereof |
| CN106989319A (en) * | 2014-05-23 | 2017-07-28 | 瑞仪(广州)光电子器件有限公司 | Back plate assembly and backlight module |
| US10302853B2 (en) | 2014-05-23 | 2019-05-28 | Radiant Opto-Electronics Corporation | Back plate assembly and backlight module |
| CN105674145A (en) * | 2016-01-05 | 2016-06-15 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10209433B2 (en) | 2016-01-05 | 2019-02-19 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| WO2019214451A1 (en) * | 2018-05-09 | 2019-11-14 | 京东方科技集团股份有限公司 | Backlight source module and display device |
| US11500147B2 (en) | 2018-05-09 | 2022-11-15 | Boe Optical Science And Technology Co., Ltd. | Backlight source module and display device |
| CN109785744A (en) * | 2018-12-25 | 2019-05-21 | 友达光电（昆山）有限公司 | Display device and the terminal for using the display device |
| CN109785744B (en) * | 2018-12-25 | 2023-06-30 | 友达光电（昆山）有限公司 | Display device and terminal using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100373228C (en) | 2008-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1779520A (en) | Backlight module and liquid-crystal display module | |
| US7679694B2 (en) | Liquid crystal display device comprising a frame having through holes at a bottom portion and a frame-like mold having protrusions which insert into the through holes | |
| AU2014218650B2 (en) | Method of making a device housing and device housing comprising a transparent lens with a stepped flange | |
| CN1162738C (en) | Display panel fixing frame and image display device | |
| CN101392895B (en) | Backlight module | |
| CN1598664A (en) | Liquid crystal display device | |
| US9810832B2 (en) | Illumination device, display device, and television receiving device | |
| CN102032511B (en) | Backlight module and liquid crystal display module | |
| CN1731246A (en) | Optical module and positioning frame therein | |
| CN1743909A (en) | Liquid crystal display module | |
| CN104823101A (en) | Liquid crystal display device | |
| CN1831598A (en) | Liquid crystal display device | |
| TW201319683A (en) | Optical film positioning structure | |
| CN1818757A (en) | Liquid-crystal display module shell and liquid-crystal display device therewith | |
| EP2840434A1 (en) | Display device | |
| JP2008293902A (en) | Backlight device and display device using it | |
| JP2006065008A (en) | Holding tool of panel element | |
| CN213210670U (en) | Backlight module and display device | |
| CN101149529B (en) | Backlight module | |
| US9618677B2 (en) | Backlight module and liquid crystal display | |
| CN110737045B (en) | Backlight module and electronic equipment | |
| CN2766489Y (en) | Connection mechanism for preventing electromagnetic wave from leaking outwards | |
| KR102007816B1 (en) | Liquid Crystal Display | |
| CN101042484A (en) | Liquid crystal display unit | |
| CN1896828A (en) | Liquid crystal display module fixing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fujian Huaying Display Technology Co., Ltd. Assignor: Chunghwa Picture Tubes Ltd. Contract fulfillment period: 2008.9.18 to 2013.9.18 Contract record no.: 2008990000652 Denomination of invention: Backlight module and liquid crystal display module Granted publication date: 20080305 License type: Exclusive license Record date: 20081010 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.18 TO 2013.9.18; CHANGE OF CONTRACT Name of requester: FUJIAN HUAYING DISPLAY SCIENCE CO., LTD. Effective date: 20081010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |