CN2789801Y - Liquid crystal displaying device with antielectrostatic structure - Google Patents
Liquid crystal displaying device with antielectrostatic structure Download PDFInfo
- Publication number
- CN2789801Y CN2789801Y CN 200520057626 CN200520057626U CN2789801Y CN 2789801 Y CN2789801 Y CN 2789801Y CN 200520057626 CN200520057626 CN 200520057626 CN 200520057626 U CN200520057626 U CN 200520057626U CN 2789801 Y CN2789801 Y CN 2789801Y
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- liquid crystal
- lcd
- transparency carrier
- base plate
- transparent base
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Abstract
The utility model relates to a liquid crystal display device with an anti-electrostatic structure. The utility model comprises a first transparent base plate, a second transparent base plate and a liquid crystal box formed by frame glue, wherein a liquid crystal is held in the liquid crystal box, a scanning line group which is composed of scanning lines is arranged on the first transparent base plate and a signal line group which is composed of signal lines is arranged on the second transparent base plate. The scanning line group and the signal line group are connected with a driving integrated circuit which controls the scanning lines and the signal lines to be selected. One end of the scanning line at the peripheral edge of the scanning line group is provided with a discharging pointed end. The periphery of the frame glue of the first transparent base plate and the second transparent base plate is also provided with an auxiliary ITO running line which surrounds the whole ITO design figure. One end of the auxiliary ITO running line is provided with a discharging pointed end. Through the improvement of the structure, in the process for manufacturing the liquid crystal display device, a static ITO running line structure which is generated can be effectively dispersed and eliminated and the displaying quality of the liquid crystal display device is further improved.
Description
[technical field]
The utility model relates to a kind of LCD, relates in particular to the improvement to the ITO Wiring structure of LCDs, thereby improves the anti-static ability of LCD.
[background technology]
Please refer to Fig. 1, a LCD body mainly comprises by top glass substrate 1, the box body of the band cavity that lower glass substrate 2 and frame glue 3 constitute, accommodate liquid crystal 4 in this cavity, this top glass substrate 1 and lower glass substrate 2 are respectively arranged with COM line (scan electrode) 5 and SEG line (signal electrode) 6, this COM line and SEG line form a matrix in the viewing area of LCD, last, lower glass substrate and COM line, one deck PI layer (oriented layer) 7 is arranged respectively between the SEG line, general SEG line be direct cabling to DRIVER IC, the COM line then needs to be grouped in the non-display area cabling of glass substrate both sides to DRIVER IC.
The displaying principle of above-mentioned LCD is: by choosing of DRIVER IC control COM line and SEG line, with the liquid crystal applied voltages to certain pixel, make liquid crystal rotation printing opacity.
Determined by Wiring structure, the COM cabling to be divided into two parts up and down respectively from the left and right sides cabling space cabling of top glass substrate or lower glass substrate to DRIVER IC.LCD after cutting action, blue through inserting respectively, irritate liquid, seal, operations such as cleaning, electrical measurement, COG, paster, these processes can not avoid rubbing and with the contacting of ITO PAD face, and then produce a large amount of static charges.Because it is edge effect, the most serious by the electrostatic phenomenon of four COM cablings at cabling two ends.If the static that produces on the COM cabling is excessive, will wound and the corresponding PI layer of these COM cablings, make the orientation characteristic of PI layer be subjected to expendable polarization phenomena, and then when showing, show as black and white line.
[summary of the invention]
Technical problem to be solved in the utility model provides a kind of ITO Wiring structure that can effectively dredge and eliminate the static that LCD produces in manufacture process, and then improves the LCD of display quality.
Another technical matters to be solved in the utility model provides a kind of LCD that can eliminate the electrostatic phenomenon that produces in the duty.
For achieving the above object, the utility model adopts following technical scheme:
A kind of LCD with electrostatic prevention structure, comprise first transparency carrier, the liquid crystal cell that second transparency carrier and frame glue form, accommodate liquid crystal in the liquid crystal cell, on this first transparency carrier, be provided with the scanline groups that sweep trace is formed, on this second transparency carrier, be provided with the signal line group that signal wire is formed, described scanline groups and signal line group are connected to a drive integrated circult and choosing by this circuit gated sweep line and signal wire, it is characterized in that: an end of the sweep trace at the edge of described scanline groups is provided with discharge tip, an auxiliary ITO cabling is also established in the frame glue periphery of described first transparency carrier and second transparency carrier, should entire I TO design configuration be surrounded auxiliary ITO cabling, and be provided with discharge tip at an end of this auxiliary ITO cabling.
Wherein, described sweep trace is divided into half screen and two groups of sweep traces of following half screen, is respectively equipped with a discharge tip on the sweep trace of the boundary of last half screen and two groups of sweep traces of following half screen.
Wherein, described discharge tip length is 0.05 ~ 0.08mm, width 0.05 ~ 0.08mm, angle 53 degree.
Further improvement of the utility model is: the other end of described auxiliary ITO cabling is connected to the grounding pin VSS of drive integrated circult.
Further improvement of the utility model is: the other end of described auxiliary ITO cabling is connected to the grounding pin VSS on the flexible print circuit board.
The beneficial effects of the utility model are: by designing discharge tip on the edge C OM line on the LCD, auxiliary ITO cabling with design belt discharge tip, can effectively dredge and eliminate the static that produces in the production run, thereby avoid the middle black and white line problem that causes because of oriented layer polarization, thereby improve the quality of products.On the other hand, an end of auxiliary ITO cabling is connected on the grounding pin of the grounding pin of drive integrated circult or flexible print circuit board, can effectively dredges the static that produces in the use, effectively protect LCD.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of available liquid crystal display.
Fig. 2 is the structural representation of the last sheet glass substrate of the utility model LCD first embodiment.
Fig. 3 is the structural representation of the following sheet glass substrate of the utility model LCD first embodiment.
Fig. 4 is the structural representation of the following sheet glass substrate of the utility model LCD second embodiment.
[embodiment]
As a preferred embodiment of the present utility model, COLOR STN-LCD dot matrix is 128*128, and DUTY=1/128, DRIVER IC are SSD1781.
As shown in Figure 2, comprise a viewing area 11 (active area) on the top glass substrate 10 of this LCD, the COM line 12 of many horizontal direction parallel arrangements passes viewing area 11, these many COM lines 12 are divided into two groups, these two groups of COM lines split screen place in the middle of the viewing area is provided with a discharge tip 13, this discharge tip 13 is to utilize principle of corona discharge work, promptly under the highfield effect, the place that body surface curvature is big is (as sharply, the top of fines), equipotential plane is close, electric field intensity increases severely, and causes near its air to be ionized and produces gas discharge.In the present embodiment, described discharge tip length is 0.05 ~ 0.08mm, width 0.05 ~ 0.08mm, angle 53 degree.Described COM line 12 is connected to the ITO cabling 24 (among Fig. 3 as seen) of lower glass substrate by transfer printing point 14, auxiliary ITO cabling 16 of periphery design at the frame glue 15 of top glass substrate 10, should entire I TO design configuration be surrounded auxiliary ITO cabling 16, the two ends design of this auxiliary ITO cabling 16 has a discharge tip 17.
As shown in Figure 3, comprise a viewing area 21 (active area) on the lower glass substrate 20 of this LCD, the SEG line 22 that many vertical directions are arranged in parallel passes viewing area 21, described SEG line 22 is connected on the drive integrated circult 23 that is positioned at non-display area, be provided with ITO cabling 24 and frame glue 25 in the periphery of viewing area, ITO cabling 24 is directly connected on the drive integrated circult 23, auxiliary ITO cabling 26 of the periphery design of frame glue 25, should entire I TO design configuration be surrounded and be connected on the grounding pin VSS of drive integrated circult 23 by auxiliary ITO cabling 26, the other end of this auxiliary ITO cabling 26 design has a discharge tip 27.
Compare with embodiment 1, difference is: the auxiliary ITO cabling of the frame glue periphery design of lower-glass can be directly connected to the VSS pin of flexible print circuit board FPC.
Existing method for designing relatively is easy to generate middle black and white line problem because of static reason in the production run of actual LCD, on the COM at split screen place line, design discharge tip by present embodiment, the isostructural improvement of auxiliary ITO cabling with design belt discharge tip, the black and white line problem has obtained effective control in the middle of making, thereby has improved display quality.Checking by experiment, the ratio of static black and white line is greater than 74% when not designing the safeguard procedures of present embodiment electrostatic prevention structure, and the ratio of adding static black and white line after these safeguard procedures is less than 1%.
In addition, an end of auxiliary ITO cabling is connected on the grounding pin of the grounding pin of drive integrated circult or flexible print circuit board, can effectively dredges the static that produces in the use, effectively protect LCD.
Claims (5)
1. LCD with electrostatic prevention structure, comprise first transparency carrier, the liquid crystal cell that second transparency carrier and frame glue form, accommodate liquid crystal in the liquid crystal cell, on this first transparency carrier, be provided with the scanline groups that sweep trace is formed, on this second transparency carrier, be provided with the signal line group that signal wire is formed, described scanline groups and signal line group are connected to a drive integrated circult and choosing by this circuit gated sweep line and signal wire, it is characterized in that: an end of the sweep trace at the edge of described scanline groups is provided with discharge tip, an auxiliary ITO cabling is also established in the frame glue periphery of described first transparency carrier and second transparency carrier, should entire I TO design configuration be surrounded auxiliary ITO cabling, and be provided with discharge tip at an end of this auxiliary ITO cabling.
2. the LCD of band electrostatic prevention structure as claimed in claim 1 is characterized in that: described sweep trace is divided into half screen and two groups of sweep traces of following half screen, is respectively equipped with a discharge tip on the sweep trace of the boundary of last half screen and two groups of sweep traces of following half screen.
3. the LCD of band electrostatic prevention structure as claimed in claim 1 is characterized in that: described discharge tip length is 0.05 ~ 0.08mm, width 0.05 ~ 0.08mm, angle 53 degree.
4. the LCD of band electrostatic prevention structure as claimed in claim 1 is characterized in that: the other end of described auxiliary ITO cabling is connected to the grounding pin VSS of drive integrated circult.
5. the LCD of band electrostatic prevention structure as claimed in claim 1 is characterized in that: the other end of described auxiliary ITO cabling is connected to the grounding pin VSS on the flexible print circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057626 CN2789801Y (en) | 2005-04-21 | 2005-04-21 | Liquid crystal displaying device with antielectrostatic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057626 CN2789801Y (en) | 2005-04-21 | 2005-04-21 | Liquid crystal displaying device with antielectrostatic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789801Y true CN2789801Y (en) | 2006-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057626 Expired - Lifetime CN2789801Y (en) | 2005-04-21 | 2005-04-21 | Liquid crystal displaying device with antielectrostatic structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN2789801Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154668B (en) * | 2006-09-26 | 2010-12-01 | 龙腾光电（控股）有限公司 | Substrate for display device, its manufacturing method and display device |
| CN101630078B (en) * | 2008-07-17 | 2010-12-15 | 胜华科技股份有限公司 | Liquid crystal display panel |
| US8018543B2 (en) | 2008-06-16 | 2011-09-13 | Wintek Corporation | Liquid crystal display panel with electrostatic protection structure |
| CN101441372B (en) * | 2007-11-23 | 2011-12-07 | 上海中航光电子有限公司 | Electrostatic discharge protection device of LCD device and manufacturing method thereof |
| CN105068290A (en) * | 2015-07-30 | 2015-11-18 | 汕头市锐科电子有限公司 | VA-type liquid crystal display multi-display prevention method |
| CN107436520A (en) * | 2017-09-22 | 2017-12-05 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| US11256151B2 (en) | 2006-12-27 | 2022-02-22 | Japan Display Inc. | Liquid crystal display device having improved electrostatic discharge resistance |
| US11835827B2 (en) | 2008-03-06 | 2023-12-05 | Japan Display Inc. | Liquid crystal device and electronic apparatus |
-
2005
- 2005-04-21 CN CN 200520057626 patent/CN2789801Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154668B (en) * | 2006-09-26 | 2010-12-01 | 龙腾光电（控股）有限公司 | Substrate for display device, its manufacturing method and display device |
| US11256151B2 (en) | 2006-12-27 | 2022-02-22 | Japan Display Inc. | Liquid crystal display device having improved electrostatic discharge resistance |
| US11835828B2 (en) | 2006-12-27 | 2023-12-05 | Japan Display Inc. | Liquid crystal display device having improved electrostatic discharge resistance |
| CN101441372B (en) * | 2007-11-23 | 2011-12-07 | 上海中航光电子有限公司 | Electrostatic discharge protection device of LCD device and manufacturing method thereof |
| US11835827B2 (en) | 2008-03-06 | 2023-12-05 | Japan Display Inc. | Liquid crystal device and electronic apparatus |
| US8018543B2 (en) | 2008-06-16 | 2011-09-13 | Wintek Corporation | Liquid crystal display panel with electrostatic protection structure |
| CN101630078B (en) * | 2008-07-17 | 2010-12-15 | 胜华科技股份有限公司 | Liquid crystal display panel |
| CN105068290A (en) * | 2015-07-30 | 2015-11-18 | 汕头市锐科电子有限公司 | VA-type liquid crystal display multi-display prevention method |
| CN105068290B (en) * | 2015-07-30 | 2018-07-03 | 林锐群 | A kind of VA types liquid crystal prevents the method more shown |
| CN107436520A (en) * | 2017-09-22 | 2017-12-05 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150421 Granted publication date: 20060621 |