CN202955582U - Backlight module and liquid crystal display device - Google Patents

Backlight module and liquid crystal display device Download PDF

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Publication number
CN202955582U
CN202955582U CN 201220703180 CN201220703180U CN202955582U CN 202955582 U CN202955582 U CN 202955582U CN 201220703180 CN201220703180 CN 201220703180 CN 201220703180 U CN201220703180 U CN 201220703180U CN 202955582 U CN202955582 U CN 202955582U
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CN
China
Prior art keywords
described
contraposition
sidewall
step
backlight module
Prior art date
Application number
CN 201220703180
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Chinese (zh)
Inventor
钟辉
Original Assignee
厦门天马微电子有限公司
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Priority to CN 201220703180 priority Critical patent/CN202955582U/en
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Publication of CN202955582U publication Critical patent/CN202955582U/en

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Abstract

The utility model discloses a backlight module and a liquid crystal display device. The backlight module comprises a rear panel, a light guide plate and an optical film group, wherein the rear panel comprises a plurality of counterpoint side walls, a carrying side wall and a bottom wall; at least one counterpoint side wall is bent towards the direction of being away from the bottom wall to form a first counterpoint side wall, a counterpoint step and a second counterpoint side wall; the counterpoint step is connected with the first counterpoint side wall and the second counterpoint side wall, the first counterpoint side wall is connected with the bottom wall and the counterpoint step, a space defined by the first counterpoint side wall and the bottom wall is used for placing the light guide plate and the optical film group, and a space defined by the second counterpoint side wall and the counterpoint step is used for placing a liquid crystal display screen. By adopting the backlight module, a rubber frame is saved, thus the production cost is lowered; and processes of dispensing and solidifying for fixing the light guide plate are not needed, thus the process step is reduced on the premise of a narrow frame, and the process assembly error is reduced. Meanwhile due to the adoption of a pure-iron frame structure, the heat radiating effect is better.

Description

A kind of backlight module and liquid crystal indicator

Technical field

The utility model relates to flat panel display, particularly a kind of backlight module and liquid crystal indicator.

Background technology

Along with the sharply development of network and radio communication technology, portable information product has obtained significant progress.People, when constantly pursuing the liquid crystal indicator of high-resolution, high-contrast and narrow frame, also wish to reduce its production cost.Backlight module, as one of vital part of liquid crystal indicator, need to constantly improve backlight module, to reduce its cost further narrow frame.

As shown in Figure 1, backlight module 100 comprises: a backboard 101, be arranged at reflector plate 102 on backboard 101, be arranged at glue frame 103 on described backboard 101, be set in turn in LGP 104, optical diaphragm group 105 and LCDs 106 on described reflector plate 102.Wherein, described glue frame 103 and described reflector plate 102 are fixing by two-sided tape 107, and described LCDs 106 is fixing with described glue frame 103 by shading rubber belt 108.

In order to reduce costs and narrow frame, someone has proposed omission glue frame, with LGP, replaces the glue frame.As shown in Figure 2, backlight module 200 comprises: a backboard 201, be arranged at reflector plate 202 on backboard 201, be arranged at LGP 203 on described reflector plate 202, be set in turn in optical diaphragm group 204 and LCDs 205 on described LGP 203.Wherein, the contraposition sidewall of described LGP 203 and described backboard 201 is fixing by adhesive glue 206, and described adhesive glue 206 completes by gluing process and curing process.

As can be seen here, although backlight module 200 has omitted the glue frame, increased gluing process and curing process, increased production cost and elongated the production time.On the other hand, because described LGP 203 is fixed together by adhesive glue 206 and described backboard 201, if defect appears in LGP 203 or backboard 201, this can be discarded together with backboard 201 or LGP 203, reduce the chance of doing over again and keeping in repair, increased production cost.

The utility model content

The utility model provides a kind of backlight module and liquid crystal indicator, reach when omitting the glue frame, can also remove gluing process and curing process, thereby in the time of the frame of realizing narrowing, reduction material cost, also can not increase the purpose of production cost, to solve after removal glue frame of the prior art, increase the problem that production cost that some glue and curing process cause rises.

For solving above-mentioned technology for topic, the utility model provides a kind of backlight module, comprise: backboard, LGP and optical diaphragm group, described backboard comprises a plurality of contraposition sidewalls, one carries sidewall and a diapire, at least one contraposition sidewall is to away from described diapire direction, being bent to form the first contraposition sidewall, contraposition step and the second contraposition sidewall, described contraposition step connects the first contraposition sidewall and the second contraposition sidewall, described the first contraposition sidewall connects described diapire and described contraposition step, the space that described the first contraposition sidewall and diapire limit is for placing described LGP and optical diaphragm group, the space that described the second contraposition sidewall and contraposition step limit is for placing a LCDs.

Optionally, in described backlight module, described contraposition step is parallel to described diapire.

Optionally, in described backlight module, the surface of the close described LCDs of described contraposition step and described optical diaphragm group maintain an equal level away from the surface of described LGP.

Optionally, in described backlight module, the free end of described the second contraposition sidewall is to away from described contraposition step direction, being bent to form a bar shaped flanging, described bar shaped flanging and described the second contraposition parallel sidewalls.

Optionally, in described backlight module, the free end of described the second contraposition sidewall is near described contraposition step direction, being bent to form a bar shaped flanging, described bar shaped flanging and described the second contraposition parallel sidewalls.

Optionally, in described backlight module, the free end of described bar shaped flanging extends on the horizontal plane of described diapire.

Optionally, in described backlight module, the free end of described the second contraposition sidewall is to away from described contraposition step direction, being bent to form a L shaped flanging, the vertical edge of described L shaped flanging and described the second contraposition parallel sidewalls, and the horizontal edge of described L shaped flanging and described diapire are on same level.

Optionally, in described backlight module, adjacent described the second contraposition sidewall is separate.

Optionally, in described backlight module, described lift-launch sidewall is to being bent to form the first lift-launch sidewall away from described diapire direction and carrying step, described first carries sidewall connects described diapire and described lift-launch step, the described first space of carrying sidewall and diapire restriction is for placing described LGP and optical diaphragm group, and described lift-launch step is for carrying described LCDs.

Optionally, in described backlight module, described lift-launch ledge surface is parallel to described diapire.

Optionally, in described backlight module, also comprise light source, described light source carries between sidewall and LGP described first.

Optionally, in described backlight module, the described first free end that carries step is near described diapire direction, being bent to form a bar shaped flanging, and described bar shaped flanging and described first carries parallel sidewalls.

Optionally, in described backlight module, the described first free end that carries step is near described diapire direction, being bent to form a L shaped flanging, and the vertical edge of described L shaped flanging and described first carries parallel sidewalls, and the horizontal edge of described L shaped flanging and described diapire are on same level.

Accordingly, the utility model also provides a kind of liquid crystal indicator, comprises LCDs and described backlight module.

Optionally, in described liquid crystal indicator, described LCDs comprises color membrane substrates and the array base palte arranged corresponding thereto, and the color membrane substrates between two adjacent the second contraposition sidewalls and the bight of array base palte are provided with chamfering, and described chamfering is positioned at described backboard.

Optionally, in described liquid crystal indicator, described LCDs is fixed on described contraposition step and described optical diaphragm group by shading rubber belt.

Optionally, in described liquid crystal indicator, described liquid crystal indicator also comprises the main FPC be arranged on described LCDs, described main FPC comprises light source FPC and LCDs FPC, described light source FPC carry described lift-launch step with on described LGP and with described light source, be connected, described LCDs FPC is connected with described LCDs.

Optionally, in described liquid crystal indicator, described light source FPC carries on described lift-launch step and described LGP by double faced adhesive tape.

Optionally, in described liquid crystal indicator, described LCDs is fixed on light source FPC and optical diaphragm group by shading rubber belt.

In backlight module provided by the utility model, at least one contraposition sidewall is to be bent to form the first contraposition sidewall, contraposition step and the second contraposition sidewall away from described diapire direction, described contraposition step connects the first contraposition sidewall and the second contraposition sidewall, described the first contraposition sidewall connects described diapire and described contraposition step, the space that described the first contraposition sidewall and diapire limit is for placing described LGP and optical diaphragm group, and the space that described the second contraposition sidewall and contraposition step limit is for placing a LCDs.Visible, LGP and optical diaphragm group can be limited by described first sidewall and diapire, therefore described LGP does not need just can be fixed in the space that described first sidewall and diapire limit by extra adhesive glue again, therefore just do not need the technique of a glue and curing glue yet, certainly there do not is the problem that can't keep in repair and do over again because LGP and described backboard fix yet, thereby reduce processing step and reduced production cost, and the pure iron mount structure, heat radiation is better.

The accompanying drawing explanation

The structural representation that Fig. 1 is a liquid crystal indicator in prior art;

The structural representation that Fig. 2 is another liquid crystal indicator in prior art;

The structural representation of the backlight module that Fig. 3 is the utility model one embodiment;

The top view of the liquid crystal indicator that Fig. 4 is the utility model one embodiment;

Fig. 5 is the partial enlarged drawing in the dotted line circle in Fig. 4;

Fig. 6 is along the cutaway view of AA ' line in Fig. 4;

The structural representation of the contraposition sidewall that Fig. 7 is another embodiment of the utility model;

The structural representation of the contraposition sidewall that Fig. 8 is the another embodiment of the utility model;

Fig. 9 is along the cutaway view of BB ' line in Fig. 4;

Figure 10 is the utility model structural representation of the lift-launch sidewall of an embodiment again.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing, further elaborate.

As shown in Figure 3, the backlight module 300 of the utility model one embodiment comprises: backboard 301, LGP 302 and optical diaphragm group 303, described backboard 301 comprises a plurality of contraposition sidewalls 3011, one carries sidewall 3012 and a diapire 3013, at least one contraposition sidewall 3011 is to away from described diapire 3013 directions, being bent to form the first contraposition sidewall 30111, contraposition step 30112 and the second contraposition sidewall 30113, described contraposition step 30112 connects the first contraposition sidewall 30111 and the second contraposition sidewall 30113, described the first contraposition sidewall 30111 connects described diapire 3013 and described contraposition step 30112, the space that described the first contraposition sidewall 30111 and diapire 3013 limit is for placing described LGP 302 and optical diaphragm group 303, the space that described the second contraposition sidewall 30113 and contraposition step 30112 limit is for placing a LCDs 304.Described contraposition step 30112 is parallel to described diapire 3013.The surface of the close described LCDs 304 of described contraposition step 30112 and described optical diaphragm group 303 maintain an equal level away from the surface of described LGP 302.Wherein, described LCDs 304 comprises color membrane substrates 3041 and the array base palte 3042 arranged corresponding thereto.

As shown in Figure 4, described LCDs 304 is fixed on to rear formation one liquid crystal indicator 400 of described backlight module 300.Described liquid crystal indicator also comprises the main FPC401 be arranged on described LCDs 304, and described main FPC401 carries on described lift-launch sidewall 3012.

As shown in Figure 5, for the ease of manufacturing, the second adjacent contraposition sidewall 30113 is separate.Stretch out between two the second separate contraposition sidewalls 30113 in bight for fear of described LCDs 304, cause touching angle or broken screen in the process of moving, the bight of the color membrane substrates 3041 between two adjacent the second contraposition sidewalls 30113 and array base palte 3042 can be ground and form chamfering 3043, described chamfering 3043 is positioned at described backboard 301.

As shown in Figure 6, in order to strengthen the edge strength of described contraposition sidewall 30111, can be by the free end of described the second contraposition sidewall 30113 to away from described contraposition step 30112 directions, being bent to form a bar shaped flanging, described bar shaped flanging is parallel with described the second contraposition sidewall 30113.While grabbing by backlight module in order to reduce, to operator's scuffing, the free end of bar shaped flanging can be extended on the horizontal plane of described diapire 3013 always.

As shown in Figure 7, in another embodiment of the present utility model, the free end of described the second contraposition sidewall 30113 is bent to form to a bar shaped flanging to close described contraposition step 30112 directions, described bar shaped flanging is parallel with described the second contraposition sidewall 30113, can make equally the edge strength of described backboard 301 be strengthened, simultaneously because the free end of bar shaped flanging near described to a step 30112, in the time of can avoiding grabbing by backlight module to operator's scuffing.

As shown in Figure 8, in an embodiment more of the present utility model, in order to reach the handled easily, the person grabs the purpose by backlight module, also can be by the free end of described the second contraposition sidewall 30113 to away from described contraposition step 30112 directions, being bent to form a L shaped flanging, the vertical edge of described L shaped flanging is parallel with described the second contraposition sidewall 30113, and the horizontal edge of described L shaped flanging and described diapire 3013 are on same level.

As shown in Figure 9, described lift-launch sidewall 3012 is to being bent to form the first lift-launch sidewall 301211 away from described diapire 3013 directions and carrying step 30122, described first carries sidewall 301211 connects described diapire 3013 and described lift-launch step 30122, the described first space of carrying sidewall 301211 and diapire 3013 restrictions is for placing described LGP 302 and optical diaphragm group 303, and described lift-launch step 30122 is for carrying described LCDs 304.Wherein, described lift-launch step 30122 surfaces are parallel to described diapire 3013.

Continuation is with reference to figure 9, and described liquid crystal indicator 400 also comprises light source 402, and described light source 402 carries between sidewall 301211 and LGP 302 described first.Described main FPC401 comprises light source FPC4011 and LCDs FPC4012, described light source FPC4011 carry described lift-launch step 30122 with on described LGP 302 and with described light source 402, be connected, described LCDs FPC4012 is connected with described LCDs 304.Described light source FPC402 carries on described lift-launch step 30122 and described LGP 302 by double faced adhesive tape 403, and described LCDs 304 is fixed on described light source FPC4011 and optical diaphragm group 303 by shading rubber belt 404.

As shown in Figure 9, in order to strengthen the bearing strength of described lift-launch sidewall 3012, can be by the described first free end that carries step 30122 near described diapire 3013 directions, being bent to form a bar shaped flanging, it is parallel that described bar shaped flanging and described first carries sidewall 30121.

As shown in figure 10, in another embodiment of the present utility model, in order to reach the handled easily, the person grabs the purpose by backlight module, can carry the free end of step 30122 near described diapire 3013 directions, being bent to form a L shaped flanging by described first, it is parallel that the vertical edge of described L shaped flanging and described first carries sidewall 30121, and the horizontal edge of described L shaped flanging and described diapire 3013 are on same level.

In sum, in backlight module of the present utility model, at least one contraposition sidewall is to be bent to form the first contraposition sidewall, contraposition step and the second contraposition sidewall away from described diapire direction, the space that described the first contraposition sidewall and diapire limit is for placing described LGP and optical diaphragm group, and the space that described the second contraposition sidewall and contraposition step limit is for placing a LCDs.Visible, described LGP and optical diaphragm group can be limited by described first sidewall and diapire, described do not need again just can be fixed on LGP in the space that described first sidewall and diapire limit by extra adhesive glue, therefore just do not need the technique of a glue and curing glue yet, certainly there do not is the problem that can't keep in repair and do over again because LGP and described backboard fix yet, thereby reduce processing step and reduced production cost, and the pure iron mount structure, heat radiation is better.

Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model utility model.Like this, if, within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these change and modification.

Claims (19)

1. a backlight module, comprise: backboard, LGP and optical diaphragm group, described backboard comprises a plurality of contraposition sidewalls, one carries sidewall and a diapire, it is characterized in that, at least one contraposition sidewall is to away from described diapire direction, being bent to form the first contraposition sidewall, contraposition step and the second contraposition sidewall, described contraposition step connects the first contraposition sidewall and the second contraposition sidewall, described the first contraposition sidewall connects described diapire and described contraposition step, the space that described the first contraposition sidewall and diapire limit is for placing described LGP and optical diaphragm group, the space that described the second contraposition sidewall and contraposition step limit is for placing a LCDs.
2. backlight module as claimed in claim 1, is characterized in that, described contraposition step is parallel to described diapire.
3. backlight module as claimed in claim 1, is characterized in that, the surface of the close described LCDs of described contraposition step and described optical diaphragm group maintain an equal level away from the surface of described LGP.
4. backlight module as claimed in claim 1, is characterized in that, the free end of described the second contraposition sidewall is to away from described contraposition step direction, being bent to form a bar shaped flanging, described bar shaped flanging and described the second contraposition parallel sidewalls.
5. backlight module as claimed in claim 1, is characterized in that, the free end of described the second contraposition sidewall is near described contraposition step direction, being bent to form a bar shaped flanging, described bar shaped flanging and described the second contraposition parallel sidewalls.
6. backlight module as claimed in claim 4, is characterized in that, the free end of described bar shaped flanging extends on the horizontal plane of described diapire.
7. backlight module as claimed in claim 1, it is characterized in that, the free end of described the second contraposition sidewall is to away from described contraposition step direction, being bent to form a L shaped flanging, the vertical edge of described L shaped flanging and described the second contraposition parallel sidewalls, the horizontal edge of described L shaped flanging and described diapire are on same level.
8. backlight module as claimed in any of claims 1 to 7 in one of claims, is characterized in that, adjacent described the second contraposition sidewall is separate.
9. backlight module as claimed in claim 1, it is characterized in that, described lift-launch sidewall is to being bent to form the first lift-launch sidewall away from described diapire direction and carrying step, described first carries sidewall connects described diapire and described lift-launch step, the described first space of carrying sidewall and diapire restriction is for placing described LGP and optical diaphragm group, and described lift-launch step is for carrying described LCDs.
10. backlight module as claimed in claim 9, is characterized in that, described lift-launch ledge surface is parallel to described diapire.
11. backlight module as claimed in claim 9, is characterized in that, also comprises light source, described light source carries between sidewall and LGP described first.
12. backlight module as claimed in claim 10, is characterized in that, the described first free end that carries step is near described diapire direction, being bent to form a bar shaped flanging, and described bar shaped flanging and described first carries parallel sidewalls.
13. backlight module as claimed in claim 10, it is characterized in that, described first carries the free end of step near described diapire direction, being bent to form a L shaped flanging, the vertical edge of described L shaped flanging and described first carries parallel sidewalls, and the horizontal edge of described L shaped flanging and described diapire are on same level.
14. a liquid crystal indicator, comprise LCDs, it is characterized in that, also comprises backlight module as described as claim 1 to 13 any one.
15. liquid crystal indicator as claimed in claim 14, it is characterized in that, described LCDs comprises color membrane substrates and the array base palte arranged corresponding thereto, color membrane substrates between two adjacent the second contraposition sidewalls and the bight of array base palte are provided with chamfering, and described chamfering is positioned at described backboard.
16. liquid crystal indicator as claimed in claim 14, is characterized in that, described LCDs is fixed on described contraposition step and described optical diaphragm group by shading rubber belt.
17. liquid crystal indicator as claimed in claim 16, it is characterized in that, also comprise the main FPC be arranged on described LCDs, described main FPC comprises light source FPC and LCDs FPC, described light source FPC carry described lift-launch step with on described LGP and with described light source, be connected, described LCDs FPC is connected with described LCDs.
18. liquid crystal indicator as claimed in claim 17, is characterized in that, described light source FPC carries on described lift-launch step and described LGP by double faced adhesive tape.
19. liquid crystal indicator as claimed in claim 18, is characterized in that, described LCDs is fixed on described light source FPC and optical diaphragm group by shading rubber belt.
CN 201220703180 2012-12-14 2012-12-14 Backlight module and liquid crystal display device CN202955582U (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105122126A (en) * 2013-04-18 2015-12-02 夏普株式会社 Display device
WO2016078127A1 (en) * 2014-11-17 2016-05-26 深圳市华星光电技术有限公司 Backlight module and display
CN105629551A (en) * 2016-03-28 2016-06-01 青岛海信电器股份有限公司 Display device
CN105785624A (en) * 2016-05-06 2016-07-20 武汉华星光电技术有限公司 Liquid crystal display device without rubber frame and assembling method thereof
CN105807467A (en) * 2016-05-17 2016-07-27 厦门天马微电子有限公司 Display device
WO2016169210A1 (en) * 2015-04-21 2016-10-27 小米科技有限责任公司 Mobile device
WO2017008313A1 (en) * 2015-07-10 2017-01-19 深圳市华星光电技术有限公司 Liquid crystal display device
CN106405939A (en) * 2016-11-28 2017-02-15 武汉华星光电技术有限公司 Backlight module and liquid crystal display
CN106896581A (en) * 2017-04-27 2017-06-27 武汉华星光电技术有限公司 Backlight assembly and liquid crystal display device
CN107329301A (en) * 2016-04-29 2017-11-07 群创光电股份有限公司 Display device
CN107797325A (en) * 2017-11-22 2018-03-13 维沃移动通信有限公司 A kind of flexible liquid crystal screen module and a kind of assemble method of flexible liquid crystal screen module
CN108426200A (en) * 2018-03-23 2018-08-21 京东方科技集团股份有限公司 Backlight module and display device
CN108426200B (en) * 2018-03-23 2020-07-07 京东方科技集团股份有限公司 Backlight module and display device

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105122126A (en) * 2013-04-18 2015-12-02 夏普株式会社 Display device
WO2016078127A1 (en) * 2014-11-17 2016-05-26 深圳市华星光电技术有限公司 Backlight module and display
GB2546678A (en) * 2014-11-17 2017-07-26 Shenzhen China Star Optoelect Backlight module and display
RU2649237C2 (en) * 2015-04-21 2018-03-30 Сяоми Инк. Mobile device
WO2016169210A1 (en) * 2015-04-21 2016-10-27 小米科技有限责任公司 Mobile device
CN106154597A (en) * 2015-04-21 2016-11-23 小米科技有限责任公司 Mobile device
US9888101B2 (en) 2015-04-21 2018-02-06 Xiaomi Inc. Mobile device
WO2017008313A1 (en) * 2015-07-10 2017-01-19 深圳市华星光电技术有限公司 Liquid crystal display device
CN105629551A (en) * 2016-03-28 2016-06-01 青岛海信电器股份有限公司 Display device
CN107329301A (en) * 2016-04-29 2017-11-07 群创光电股份有限公司 Display device
WO2017190380A1 (en) * 2016-05-06 2017-11-09 武汉华星光电技术有限公司 Liquid crystal display apparatus having adhesive-free frame and packaging method thereof
CN105785624A (en) * 2016-05-06 2016-07-20 武汉华星光电技术有限公司 Liquid crystal display device without rubber frame and assembling method thereof
CN105807467B (en) * 2016-05-17 2019-12-20 厦门天马微电子有限公司 Display device
CN105807467A (en) * 2016-05-17 2016-07-27 厦门天马微电子有限公司 Display device
CN106405939A (en) * 2016-11-28 2017-02-15 武汉华星光电技术有限公司 Backlight module and liquid crystal display
CN106896581A (en) * 2017-04-27 2017-06-27 武汉华星光电技术有限公司 Backlight assembly and liquid crystal display device
CN107797325A (en) * 2017-11-22 2018-03-13 维沃移动通信有限公司 A kind of flexible liquid crystal screen module and a kind of assemble method of flexible liquid crystal screen module
CN108426200A (en) * 2018-03-23 2018-08-21 京东方科技集团股份有限公司 Backlight module and display device
US10429571B1 (en) 2018-03-23 2019-10-01 Beijing Boe Optoelectronics Technology Co., Ltd. Backlight module and display device
CN108426200B (en) * 2018-03-23 2020-07-07 京东方科技集团股份有限公司 Backlight module and display device

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