CN202813236U - Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device - Google Patents
Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device Download PDFInfo
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- CN202813236U CN202813236U CN 201220480584 CN201220480584U CN202813236U CN 202813236 U CN202813236 U CN 202813236U CN 201220480584 CN201220480584 CN 201220480584 CN 201220480584 U CN201220480584 U CN 201220480584U CN 202813236 U CN202813236 U CN 202813236U
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- adhesive tape
- glue
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Abstract
The utility model relates to a light leakage preventing black and white double-sided adhesive tape, a backlight module and a liquid crystal display device. The middle part of the black and white double-sided adhesive tape is provided with a window, one side of the periphery of the light leakage preventing black and white double-sided adhesive tape is provided with a black adhesive side, the other side of the periphery of the light leakage preventing black and white double-sided adhesive is provided with a black and white adhesive side, the black and white adhesive side comprises a black adhesive side and a white adhesive side, the black adhesive side corresponds to a corner of a wall structure, and the white adhesive side corresponds to the other parts. Aiming at the characteristic of severe local light leakage of the black and white double-sided adhesive tape with a small size and a narrow edge, the white adhesive side of the traditional black and white double-sided adhesive tape is arranged into the black adhesive side at the corner of the housing wall structure, and the local part of the black adhesive side absorbs the light, so the occurrence of local light leakage of the black and white double-sided adhesive tape is effectively avoided; and meanwhile, because the other parts of the black and white adhesive side is still the white adhesive side, the severe light absorbing phenomenon is avoided, and the brightness of the backlight module and the liquid crystal display device is ensured.
Description
Technical field
The utility model relates to field of liquid crystal display, relates in particular to a kind of light leakage black and white glue and contains backlight module and the liquid crystal display device of this black and white glue.
Background technology
Backlight module (Back light module is called for short (BL) backlight) is one of key component of display panels (LCD panel).Because liquid crystal itself is not luminous, function backlight is to supply enough brightness and the light source that is evenly distributed, and makes normally show image of panel of LCD.Main use backlight is on the LCD MODULE of the products such as mobile phone, notebook computer, PAD, digital camera.Backlight generally by formations such as black and white double faced adhesive tape, upper bright enhancement film, lower bright enhancement film, diffusion barrier, LGP (film), LED FPC FPC, reflectance coating, glue shell and iron-clads.(LED) is luminous by light emitting source, breaks up through LGP that luminous to become the top luminous by side, again by which floor diaphragm optically focused, so that surface uniform backlight is luminous.For preventing the regional luminous display effect that affects outside the LCD viewing area, so need around the glue frame, to stick one deck black and white double faced adhesive tape (fine flour is down), light all around is reflected back LGP, re-use again.
Because the black and white double faced adhesive tape is die-cut by cutting die, man-made assembly is pasted on the glue frame, thus be bound to exist an assembly clearance (being generally 0.05mm), and light will transmit from this gap, so that module surface light leak causes properties of product bad.Particularly for the product on narrow limit, usually the inwall of glue shell upwards is being provided with city wall structure (this structure generally can't be avoided small-size product) week, at the corner location of city wall structure, often need to reserve the assembly clearance of 0.1mm, cause that light leak is serious herein.For improving this light leak bad phenomenon, traditional black double faced adhesive tape of common employing or black glue frame substitute the black and white double faced adhesive tape, improve module periphery light leak with the dark border extinction, but the dark border extinction are serious, can affect the requirement to brightness backlight.
The utility model content
Based on this, be necessary to provide a kind of light leakage black and white double faced adhesive tape that can effectively prevent backlight module surface light leak and can not reduce backlight module brightness.
A kind of light leakage black and white double faced adhesive tape of the backlight module be used to having the city wall structure, window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder.
Among embodiment, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay therein.
This light leakage black and white double faced adhesive tape is for the serious characteristic of local light leak of the narrow limit of small size product, by the white size face of traditional black and white double faced adhesive tape is arranged to black glue face at the corner location of glue shell city wall structure, the local extinction of black glue face can effectively prevent the generation of the local light leakage phenomena of product; Because other positions of black and white glue face still are the white size face, do not have serious extinction phenomenon and occur, thereby the brightness of backlight assembly product can be guaranteed simultaneously.
In addition, also be necessary to provide a kind of backlight module and liquid crystal display device that uses above-mentioned light leakage black and white double faced adhesive tape.
A kind of backlight module is included in the reflecting piece, reflecting piece gum, LGP, diffusion sheet, brightening piece and the light leakage black and white double faced adhesive tape that are cascading in the glue shell, and described backlight module also comprises the light source that is positioned at the glue shell and is located at described LGP one end; The inwall of described glue shell upwards is provided with the city wall structure in week; Window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder; Described black and white glue face and described glue shell inwall are bonding; The light that described light source sends can spread out of by described LGP, described diffusion sheet, described brightening piece and described window successively.
Among embodiment, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay therein.
Therein among embodiment, the inwall of described glue shell is axially surrounding secondary ladder heavy stand groove, described reflecting piece, described reflecting piece gum, described LGP, described diffusion sheet and described brightening piece are located in the lowermost level heavy stand groove, described light leakage black and white double faced adhesive tape in the heavy stand groove of the second level and described black and white glue face and second level ladder bonding.
Among embodiment, the gap between described light leakage black and white double faced adhesive tape and the described glue shell inwall is 0.05mm therein; The perimembranous of described light leakage black and white double faced adhesive tape is used for bonding monolateral size less than 0.8mm.
A kind of liquid crystal display device is characterized in that, comprising:
Backlight module is included in the reflecting piece, reflecting piece gum, LGP, diffusion sheet, brightening piece and the light leakage black and white double faced adhesive tape that are cascading in the glue shell, and described backlight module also comprises the light source that is positioned at the glue shell and is located at described LGP one end; The inwall of described glue shell upwards is provided with the city wall structure in week; Window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder; Described black and white glue face and described glue shell inwall are bonding; The light that described light source sends can spread out of by described LGP, described diffusion sheet, described brightening piece and described window successively;
Light source is fixed on an end of described LGP, and is positioned at described glue shell;
The first polaroid with a side bonds of described light leakage black and white double faced adhesive tape, and is positioned at described glue shell;
Display panels is located on described the first polaroid, and is positioned at described glue shell;
The second polaroid is located on the described display panels;
Shell wraps up described glue shell;
The light that described light source sends reaches described display panels by described LGP, described diffusion sheet, described brightening piece, described window and described the first polaroid successively.
Among embodiment, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay therein.
Therein among embodiment, the inwall of described glue shell is axially surrounding secondary ladder heavy stand groove, described reflecting piece, described reflecting piece gum, described LGP, described diffusion sheet and described brightening piece are located in the lowermost level heavy stand groove, described light leakage black and white double faced adhesive tape in the heavy stand groove of the second level and described black and white glue face and second level ladder bonding.
Among embodiment, the distance between described display panels external dimensions and the liquid crystal display area edge is 1.1mm therein; Gap between described light leakage black and white double faced adhesive tape edge and the described glue shell inwall is 0.05mm; Distance between described LGP and the described liquid crystal display area edge is 0.4mm; The perimembranous of described light leakage black and white double faced adhesive tape is used for bonding monolateral size less than 0.8mm.
Above-mentioned backlight module and liquid crystal display device use light leakage black and white double faced adhesive tape, this light leakage black and white double faced adhesive tape is for the serious characteristic of local light leak of the narrow limit of small size product, by the white size face of traditional black and white double faced adhesive tape is arranged to black glue face at the corner location of glue shell city wall structure, the local extinction of black glue face can effectively prevent the generation of the local light leakage phenomena of product; Because other positions of black and white glue face still are the white size face, do not have serious extinction phenomenon and occur, thereby the brightness of backlight assembly product can be guaranteed simultaneously.
Description of drawings
Fig. 1 is the structural representation of the liquid crystal display device of an embodiment, and figure cathetus arrow represents the light trend;
Fig. 2 is the partial enlarged drawing at another visual angle of liquid crystal display device among Fig. 1;
Fig. 3 is the front view of light leakage black and white double faced adhesive tape among Fig. 1;
Fig. 4 is the dorsal view of light leakage black and white double faced adhesive tape among Fig. 1.
The specific embodiment
The below mainly is described in further detail light leakage black and white double faced adhesive tape, backlight module and liquid crystal display device in conjunction with the drawings and the specific embodiments.
As shown in Figure 1, the liquid crystal display device 10 of an embodiment comprises backlight module 100, the first polaroid 210, display panels 220, the second polaroid 230 and shell 300.
In the present embodiment, the inwall of glue shell 110 is axially surrounding secondary ladder heavy stand groove.Reflecting piece 120, reflecting piece gum 130, LGP 140, diffusion sheet 150 and brightening piece 160 are cascading in lowermost level heavy stand groove.Light leakage black and white double faced adhesive tape 170 is in the heavy stand groove of the second level.Please in conjunction with Fig. 2, the inwall of glue shell 110 upwards is provided with city wall structure 112 in week, also is that the inwall of glue shell 110 upwards has local dent or protrusion in week, thereby the inwall of glue shell 100 can form a plurality of turnings (removing the turning on several summits).
Reflecting piece gum 130 is a double faced adhesive tape, connects reflecting piece 120 and LGP 140.
Please refer to Fig. 3 and Fig. 4, in the present embodiment, window 172 is offered at the middle part of light leakage black and white double faced adhesive tape 170, and the light after LGP 140 is broken up can pass through successively LGP 140, diffusion sheet 150, brightening piece 160 and window 172 and reach in the display panels 220.One side of the perimembranous of light leakage black and white double faced adhesive tape 170 is provided with black glue face 174, and opposite side is provided with black and white glue face 176.As shown in Figure 4, black and white glue face 176 comprises the black glue face 762 corresponding with city wall structure 112 corner locations and the white size face 764 of remainder.Black glue face 762 on the black and white glue face 176 is black glue-line or mass colour ink lay.Light leakage black and white double faced adhesive tape 170 is located in the second level heavy stand groove of glue shell 110, and black and white glue face 176 is bonding with the bottom land of second level heavy stand groove.
This light leakage black and white double faced adhesive tape 170 is for the serious characteristic of local light leak of the narrow limit of small size product, by the white size face of traditional black and white double faced adhesive tape is arranged to black glue face at the corner location of glue shell city wall structure 112, black glue face 762 local extinctions, shown in Fig. 1 cathetus arrow, can effectively prevent the generation of the local light leakage phenomena of product; Because other positions of black and white glue face still are white size face 764, do not have serious extinction phenomenon and occur, thereby the brightness of backlight assembly 100 can be guaranteed simultaneously.Further, owing to black and white glue face 176 only has the part that black glue face 762 is set, thereby can not affect the adhesive property of traditional black and white glue face, i.e. the viscose power large 15% of traditional viscose force rate black glue face that needs the white size face.
The first polaroid 210, display panels 220 and the second polaroid 230 be stacked to be arranged in the second level heavy stand groove of glue shell 110, and the first polaroid 210 is bonding with the black glue face 174 of light leakage black and white double faced adhesive tape 170.Light after LGP 140 is broken up can pass through successively LGP 140, diffusion sheet 150, brightening piece 160, window 172 and the first polaroid 210 and reach in the display panels 220, makes display panels 220 show images.
Shell 300 wraps up glue shells 110, consists of the external shell of whole liquid crystal display device 10.
Please refer to Fig. 2, in the present embodiment, the distance between display panels 220 external dimensions 222 and the liquid crystal display area edge 224 is 1.1mm.Gap between light leakage black and white double faced adhesive tape 170 edges 178 and glue shell 110 inwalls is 0.05mm.Distance between LGP 140 and the liquid crystal display area edge 224 is 0.4mm; The perimembranous of light leakage black and white double faced adhesive tape 170 is used for bonding monolateral size less than 0.8mm.
Above-mentioned liquid crystal display device 10 uses light leakage black and white double faced adhesive tape 170, this light leakage black and white double faced adhesive tape 170 is for the serious characteristic of local light leak of the narrow limit of small size product, by the white size face of traditional black and white double faced adhesive tape is arranged to black glue face at the corner location of glue shell city wall structure, the local extinction of black glue face can effectively prevent the generation of the local light leakage phenomena of product; Because other positions of black and white glue face still are the white size face, do not have serious extinction phenomenon and occur, thereby the brightness of backlight assembly 100 and whole liquid crystal display device 10 can be guaranteed simultaneously.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. light leakage black and white double faced adhesive tape that is used for having the backlight module of city wall structure, it is characterized in that, window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder.
2. light leakage black and white double faced adhesive tape as claimed in claim 1 is characterized in that, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay.
3. backlight module, it is characterized in that, be included in the reflecting piece, reflecting piece gum, LGP, diffusion sheet, brightening piece and the light leakage black and white double faced adhesive tape that are cascading in the glue shell, described backlight module also comprises the light source that is positioned at the glue shell and is located at described LGP one end; The inwall of described glue shell upwards is provided with the city wall structure in week; Window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder; Described black and white glue face and described glue shell inwall are bonding; The light that described light source sends can spread out of by described LGP, described diffusion sheet, described brightening piece and described window successively.
4. backlight module as claimed in claim 3 is characterized in that, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay.
5. backlight module as claimed in claim 3, it is characterized in that, the inwall of described glue shell is axially surrounding secondary ladder heavy stand groove, described reflecting piece, described reflecting piece gum, described LGP, described diffusion sheet and described brightening piece are located in the lowermost level heavy stand groove, described light leakage black and white double faced adhesive tape in the heavy stand groove of the second level and described black and white glue face and second level ladder bonding.
6. backlight module as claimed in claim 3 is characterized in that, the gap between described light leakage black and white double faced adhesive tape and the described glue shell inwall is 0.05mm; The perimembranous of described light leakage black and white double faced adhesive tape is used for bonding monolateral size less than 0.8mm.
7. a liquid crystal display device is characterized in that, comprising:
Backlight module is included in the reflecting piece, reflecting piece gum, LGP, diffusion sheet, brightening piece and the light leakage black and white double faced adhesive tape that are cascading in the glue shell, and described backlight module also comprises the light source that is positioned at the glue shell and is located at described LGP one end; The inwall of described glue shell upwards is provided with the city wall structure in week; Window is offered at the middle part of described light leakage black and white double faced adhesive tape, one side of the perimembranous of described light leakage black and white double faced adhesive tape is provided with black glue face, opposite side is provided with black and white glue face, and described black and white glue face comprises the black glue face corresponding with described city wall structural corners position and the white size face of remainder; Described black and white glue face and described glue shell inwall are bonding; The light that described light source sends can spread out of by described LGP, described diffusion sheet, described brightening piece and described window successively;
The first polaroid with a side bonds of described light leakage black and white double faced adhesive tape, and is positioned at described glue shell;
Display panels is located on described the first polaroid, and is positioned at described glue shell;
The second polaroid is located on the described display panels;
Shell wraps up described glue shell;
The light that described light source sends reaches described display panels by described LGP, described diffusion sheet, described brightening piece, described window and described the first polaroid successively.
8. liquid crystal display device as claimed in claim 7 is characterized in that, the black glue face on the described black and white glue face is black glue-line or mass colour ink lay.
9. liquid crystal display device as claimed in claim 7, it is characterized in that, the inwall of described glue shell is axially surrounding secondary ladder heavy stand groove, described reflecting piece, described reflecting piece gum, described LGP, described diffusion sheet and described brightening piece are located in the lowermost level heavy stand groove, described light leakage black and white double faced adhesive tape in the heavy stand groove of the second level and described black and white glue face and second level ladder bonding.
10. liquid crystal display device as claimed in claim 7 is characterized in that, the distance between described display panels external dimensions and the liquid crystal display area edge is 1.1mm; Gap between described light leakage black and white double faced adhesive tape edge and the described glue shell inwall is 0.05mm; Distance between described LGP and the described liquid crystal display area edge is 0.4mm; The perimembranous of described light leakage black and white double faced adhesive tape is used for bonding monolateral size less than 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220480584 CN202813236U (en) | 2012-09-18 | 2012-09-18 | Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220480584 CN202813236U (en) | 2012-09-18 | 2012-09-18 | Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device |
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| CN202813236U true CN202813236U (en) | 2013-03-20 |
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| CN 201220480584 Expired - Fee Related CN202813236U (en) | 2012-09-18 | 2012-09-18 | Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527966A (en) * | 2013-10-30 | 2014-01-22 | 京东方科技集团股份有限公司 | Light-emitting diode (LED) lamp strip, side light type backlight source module and display device |
| CN104575406A (en) * | 2015-02-09 | 2015-04-29 | 京东方科技集团股份有限公司 | Method for driving backlight plate as well as time sequence controller and backlight driving plate |
| CN105698017A (en) * | 2016-04-07 | 2016-06-22 | 何友杰 | Light guide plate and diffusion plate combination structure solving bright border problem |
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
| CN108227071A (en) * | 2018-01-31 | 2018-06-29 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic device |
| CN109960080A (en) * | 2019-01-21 | 2019-07-02 | 东莞市利源实业有限公司 | A kind of production technology of novel mobile phone backlight composite layer |
-
2012
- 2012-09-18 CN CN 201220480584 patent/CN202813236U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527966A (en) * | 2013-10-30 | 2014-01-22 | 京东方科技集团股份有限公司 | Light-emitting diode (LED) lamp strip, side light type backlight source module and display device |
| CN103527966B (en) * | 2013-10-30 | 2015-08-19 | 京东方科技集团股份有限公司 | A kind of LED lamp bar, side-light type back light module and display device |
| CN104575406A (en) * | 2015-02-09 | 2015-04-29 | 京东方科技集团股份有限公司 | Method for driving backlight plate as well as time sequence controller and backlight driving plate |
| CN105698017A (en) * | 2016-04-07 | 2016-06-22 | 何友杰 | Light guide plate and diffusion plate combination structure solving bright border problem |
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
| CN108227071A (en) * | 2018-01-31 | 2018-06-29 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic device |
| CN109960080A (en) * | 2019-01-21 | 2019-07-02 | 东莞市利源实业有限公司 | A kind of production technology of novel mobile phone backlight composite layer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 516003 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Co-patentee after: Huizhou Techne Group Co., Ltd. Patentee after: Hua Hin photoelectric technology (Huizhou) Co., Ltd. Address before: 516003 Guangdong province Huizhou Jiangbei Road No. 21 Yunshan Yunshan Industrial Zone No. nine TCL Co-patentee before: Huizhou Techne Group Co., Ltd. Patentee before: TCL Display Technology (Huizhou) Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20190918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |