CN105182648A - Liquid crystal display panel and liquid crystal display panel ESD monitoring method - Google Patents
Liquid crystal display panel and liquid crystal display panel ESD monitoring method Download PDFInfo
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- CN105182648A CN105182648A CN201510715667.4A CN201510715667A CN105182648A CN 105182648 A CN105182648 A CN 105182648A CN 201510715667 A CN201510715667 A CN 201510715667A CN 105182648 A CN105182648 A CN 105182648A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
Abstract
The invention provides a liquid crystal display panel and a liquid crystal display panel ESD monitoring method. According to the liquid display panel structure, multiple sets of electrostatic discharge testing elements (5) which are horizontally arranged at intervals in the first direction are arranged on the wireless peripheral area of a TFT array substrate (1), each set of the electrostatic discharge testing elements comprises two metal test bars (51) which are oppositely arranged in a spacing mode in the second direction perpendicular to the first direction, the opposite ends of the two metal test bars (51) serve as tips (511), and occurrence of electrostatic discharge is induced easily. Therefore, by means of monitoring of the electrostatic discharge testing elements (5), occurrence of liquid crystal display panel ESD can be monitored continuously in time, occurrence risks of the ESD can be foreseen, and improvement on products can be facilitated.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of structure of liquid crystal display panel and display panels ESD method for supervising.
Background technology
Liquid crystal indicator (LiquidCrystalDisplay, LCD) have that fuselage is thin, power saving, the many merits such as radiationless, be widely used, as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen etc.
Liquid crystal indicator major part on existing market is backlight liquid crystal indicator, and it comprises housing, be located at the display panels in housing and be located in housing and the backlight module (BacklightModule) that arranges of display panels relatively.
The structure of liquid crystal panel is normally by a colored filter substrate (ColorFilter, CF), a thin-film transistor array base-plate (ThinFilmTransistorArraySubstrate, TFTArraySubstrate) and a liquid crystal layer (LiquidCrystalLayer) be configured between two substrates formed, its principle of work is by applying the rotation that driving voltage controls the liquid crystal molecule of liquid crystal layer on two panels glass substrate, the light refraction of backlight module out being produced picture.
At CF substrate and tft array substrate, in the production run of especially tft array substrate, static discharge (Electro-Staticdischarge, ESD) right and wrong are usually shown in the phenomenon being also difficult to avoid.The reason of static discharge is caused to mainly contain: one is particle; Two is process conditions and starting material, in the CF substrate of display panels and the manufacturing process of tft array substrate, the process conditions of deposition procedures, exposure process, etching work procedure, stripping and cleaning process etc. all may cause static discharge, meanwhile, used in processing procedure starting material also can produce static discharge due to fault in material.
Static discharge can cause the reduction of display panels yield, cost increases, production capacity declines, in the production run of display panels, therefore need ESD to monitor work.ESD method for supervising at present for display panels is mainly detected by the viewing area of board to display panels such as detection board and telecommunications detection board of taking pictures, and causes impact to the product quality of display panels when ESD being detected.
Summary of the invention
The object of the present invention is to provide a kind of structure of liquid crystal display panel, can in time, a situation arises for continuous surveillance display panels ESD, precognition ESD occurrence risk, be beneficial to and improvement made to product.
The present invention also aims to provide a kind of display panels ESD method for supervising, can in time, a situation arises for continuous surveillance display panels ESD, precognition ESD occurrence risk, be beneficial to and improvement made to product.
For achieving the above object, the invention provides a kind of structure of liquid crystal display panel, comprising: the tft array substrate be oppositely arranged, CF substrate and the liquid crystal layer be configured between tft array substrate and CF substrate;
Described tft array substrate there is viewing area and be positioned at periphery, described viewing area without wiring neighboring area;
Described tft array substrate wiring neighboring area is provided with many groups of and the electrostatic discharge testing elements that be arranged spaced along first direction, often organize electrostatic discharge testing element include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar be oppositely arranged, the opposite end of these two metallic test bars be tip; Spacing distance along second direction between the tip of two metallic test bars of each group of electrostatic discharge testing element is unequal.
The shape at described tip is sharp-pointed triangle.
Two adjacent groups electrostatic discharge testing element is equal along the spacing distance of first direction.
Described tft array substrate comprises the substrate, the first metal layer, the first insulation course, semiconductor layer, the second insulation course, the second metal level, the 3rd insulation course and the pixel electrode layer that arrange from bottom to top, and described many group electrostatic discharge testing elements are positioned at same layer with described second metal level and are made by same metal material simultaneously.
The material of described many group electrostatic discharge testing elements and the second metal level is one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
The present invention also provides a kind of display panels ESD method for supervising, comprise: in the step making many group electrostatic discharge testing elements without wiring neighboring area of the corresponding periphery, viewing area of the second metal level while making the second metal level of display panels tft array substrate, and after the successive process often completing one display panels, fixed point is carried out to many group electrostatic discharge testing elements and take pictures, the step of the static discharge situation of monitoring many groups electrostatic discharge testing element;
Described many group electrostatic discharge testing elements are spaced and be arranged in parallel along first direction, often organize electrostatic discharge testing element include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar be oppositely arranged, the opposite end of these two metallic test bars be tip; Spacing distance along second direction between the tip of two metallic test bars of each group of electrostatic discharge testing element is unequal.
The shape at described tip is sharp-pointed triangle.
Two adjacent groups electrostatic discharge testing element is equal along the spacing distance of first direction.
The material of described many group electrostatic discharge testing elements and the second metal level is one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
Beneficial effect of the present invention: a kind of structure of liquid crystal display panel provided by the invention, at tft array substrate, many groups of and the electrostatic discharge testing elements that be arranged spaced along first direction are set without wiring neighboring area, often organize electrostatic discharge testing element include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar be oppositely arranged, the opposite end of these two metallic test bars is most advanced and sophisticated, static discharge is more easily induced to occur, therefore, it is possible to come in time by monitoring described electrostatic discharge testing element, a situation arises to monitor display panels ESD constantly, the occurrence risk of precognition ESD, be beneficial to and improvement is made to product, a kind of display panels ESD method for supervising provided by the invention produces many group electrostatic discharge testing elements while the second metal level making array base palte, take pictures monitor its static discharge situation by carrying out fixed point to many group electrostatic discharge testing elements again, a situation arises can to monitor display panels ESD in time, constantly, the occurrence risk of precognition ESD, is beneficial to and makes improvement to product.
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but accompanying drawing only provides reference and explanation use, is not used for being limited the present invention.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention describe in detail, will make technical scheme of the present invention and other beneficial effect apparent.
In accompanying drawing,
Fig. 1 is the diagrammatic cross-section of structure of liquid crystal display panel of the present invention;
Fig. 2 is the schematic top plan view of tft array substrate in the structure of liquid crystal display panel of invention;
Fig. 3 is the enlarged diagram of electrostatic discharge testing element in Fig. 2.
Embodiment
For further setting forth the technological means and effect thereof that the present invention takes, be described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
Please refer to Fig. 1, Fig. 2 and Fig. 3, first the present invention provides a kind of structure of liquid crystal display panel, comprising: the tft array substrate 1 be oppositely arranged, CF substrate 2 and the liquid crystal layer 3 be configured between tft array substrate 1 and CF substrate 2.
Described tft array substrate 1 there is viewing area AA and be positioned at AA periphery, described viewing area without wiring neighboring area B.Described tft array substrate 1 wiring neighboring area B is provided with many groups of and the electrostatic discharge testing elements 5 that be arranged spaced along first direction, often organize electrostatic discharge testing element 5 include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar 51 be oppositely arranged, the opposite end of these two metallic test bars 51 be tip 511; Spacing distance along second direction between the tip 511 of two metallic test bars 51 of each group of electrostatic discharge testing element 5 is unequal.
As shown in Figure 2 and Figure 3, the described shape of most advanced and sophisticated 511 is preferably sharp-pointed triangle.
Two adjacent groups electrostatic discharge testing element 5 is equal along the spacing distance of first direction.
Particularly, as shown in Figure 1, described tft array substrate 1 comprises the substrate 11, the first metal layer 12, first insulation course 13, semiconductor layer 14, second insulation course 15, second metal level 16, the 3rd insulation course 17 and the pixel electrode layer 18 that arrange from bottom to top.Be as good as with prior art, described substrate 11 is generally glass substrate or plastic base, and described the first metal layer 12 comprises the grid of TFT and the pattern of sweep trace, and described second metal level 16 comprises the pattern of the source electrode of TFT, drain electrode and data line.Consider that static discharge mostly occurs the second metal level of tft array substrate 1, therefore arranges described many group electrostatic discharge testing elements 5 and is positioned at same layer with described second metal level 16 and is made by same metal material simultaneously.Further, the material of described many group electrostatic discharge testing elements 5 and the second metal level 16 is one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
Opposite end due to two metallic test bars 51 of described electrostatic discharge testing element 5 is most advanced and sophisticated 511, static charge is more easily accumulated in described most advanced and sophisticated 511 places, compare the generation that static discharge more easily induced by circuit in viewing area and pattern, therefore the static discharge situation observing described many group electrostatic discharge testing elements 5 after one processing procedure terminates by taking pictures judge the risk of display panels generation static discharge.Simultaneously, due to two metallic test bars 51 of each group of electrostatic discharge testing element 5 tip 511 between spacing distance along second direction unequal, the static discharge situation that the tip 511 of two metallic test bars 51 of different electrostatic discharge testing element 5 occurs also is different, can reflect the order of severity of different operation static discharge and the stability of associated stations board.Because described many group electrostatic discharge testing elements 5 are arranged at without wiring neighboring area B, electrostatic discharge testing element 5 is not connected with the circuit in the AA of viewing area and pattern, also can not impact viewing area AA even if electrostatic occurs electrostatic discharge testing element 5.The point position occurred frequently comparing the static discharge in existing monitoring display panels viewing area is compared, the present invention arrange described many group electrostatic discharge testing elements 5 in time, monitor the situation of display panels generation static discharge constantly, there is foresight, the risk change that static discharge occurs can be predicted in advance, be beneficial to and improvement is made to product.
Based on same inventive concept, the present invention also provides a kind of display panels ESD method for supervising.Please refer to Fig. 1 to Fig. 3, the method organizes electrostatic discharge testing element 5 making without wiring neighboring area B of the second AA periphery, metal level 16 corresponding viewing area more while the second metal level 16 making display panels tft array substrate 1; Then, after the successive process often completing one display panels, (as made pixel electrode layer 18, to the group processing procedure such as tft array substrate 1 and CF substrate 2) is carried out fixed point and is taken pictures how organize electrostatic discharge testing element 5, the monitoring static discharge situation organizing electrostatic discharge testing element 5 more.
Particularly, described many group electrostatic discharge testing elements 5 are spaced and be arranged in parallel along first direction, often organize electrostatic discharge testing element 5 include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar 51 be oppositely arranged, the opposite end of these two metallic test bars 51 be tip 511.Spacing distance along second direction between the tip 511 of two metallic test bars 51 of each group of electrostatic discharge testing element 5 is unequal.
The described shape of most advanced and sophisticated 511 is sharp-pointed triangle.
Two adjacent groups electrostatic discharge testing element 5 is equal along the spacing distance of first direction.
The material of described many group electrostatic discharge testing elements 5 and the second metal level 16 is one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
Organize in the step of electrostatic discharge testing element 5 making without wiring neighboring area B of the second AA periphery, metal level 16 corresponding viewing area while described the second metal level 16 making display panels tft array substrate 1 more, the pattern of described many group electrostatic discharge testing elements 5 only need be added on the light shield for patterning second metal level 16, adopt conventional film forming, exposure, etching, removing photoresistance processing procedure again, when forming the pattern of the second metal level 16 in the AA of viewing area, also at the pattern forming described many group electrostatic discharge testing elements 5 without wiring neighboring area B.Further, during exposure, retain the photoresistance covering described many group electrostatic discharge testing elements 5; During etching, retain the metal corresponding to described many group electrostatic discharge testing elements 5, finally remove photoresistance.
Carry out fixed point to many group electrostatic discharge testing elements 5 after the described successive process often completing one display panels to take pictures, in the step of the static discharge situation of monitoring many groups electrostatic discharge testing element 5, opposite end due to two metallic test bars 51 of described electrostatic discharge testing element 5 is most advanced and sophisticated 511, static charge is more easily accumulated in described most advanced and sophisticated 511 places, compare the generation that static discharge more easily induced by circuit in viewing area and pattern, taken pictures by fixed point and observe the risk that the described static discharge situation organizing electrostatic discharge testing element 5 can judge display panels generation static discharge more.Simultaneously, due to two metallic test bars 51 of each group of electrostatic discharge testing element 5 tip 511 between spacing distance along second direction unequal, the static discharge situation that the tip 511 of two metallic test bars 51 of different electrostatic discharge testing element 5 occurs also is different, can reflect the order of severity of different operation static discharge and the stability of associated stations board.Because described many group electrostatic discharge testing elements 5 are arranged at without wiring neighboring area B, electrostatic discharge testing element 5 is not connected with the circuit in the AA of viewing area and pattern, also can not impact viewing area AA even if electrostatic occurs electrostatic discharge testing element 5.The point position occurred frequently comparing the static discharge in existing monitoring display panels viewing area is compared, this method by described many group electrostatic discharge testing elements 5 in time, monitor the situation of display panels generation static discharge constantly, there is foresight, the risk change that static discharge occurs can be predicted in advance, be beneficial to and improvement is made to product.
In sum, structure of liquid crystal display panel of the present invention, at tft array substrate, many groups of and the electrostatic discharge testing elements that be arranged spaced along first direction are set without wiring neighboring area, often organize electrostatic discharge testing element include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar be oppositely arranged, the opposite end of these two metallic test bars is most advanced and sophisticated, static discharge is more easily induced to occur, therefore, it is possible to come in time by monitoring described electrostatic discharge testing element, a situation arises to monitor display panels ESD constantly, the occurrence risk of precognition ESD, be beneficial to and improvement is made to product, display panels ESD method for supervising of the present invention produces many group electrostatic discharge testing elements while the second metal level making array base palte, take pictures monitor its static discharge situation by carrying out fixed point to many group electrostatic discharge testing elements again, a situation arises can to monitor display panels ESD in time, constantly, the occurrence risk of precognition ESD, is beneficial to and makes improvement to product.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to the claims in the present invention.
Claims (9)
1. a structure of liquid crystal display panel, it is characterized in that, comprising: the tft array substrate (1) be oppositely arranged, CF substrate (2) and the liquid crystal layer (3) be configured between tft array substrate (1) and CF substrate (2);
Described tft array substrate (1) there is viewing area (AA) and be positioned at described viewing area (AA) peripheral without wiring neighboring area (B);
Described tft array substrate (1) wiring neighboring area (B) is provided with many groups of and the electrostatic discharge testing elements (5) that be arranged spaced along first direction, often organize electrostatic discharge testing element (5) include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar (51) be oppositely arranged, the opposite end of these two metallic test bars (51) be tip (511); Spacing distance along second direction between the tip (511) of two metallic test bars (51) of each group of electrostatic discharge testing element (5) is unequal.
2. structure of liquid crystal display panel as claimed in claim 1, it is characterized in that, the shape of described tip (511) is sharp-pointed triangle.
3. structure of liquid crystal display panel as claimed in claim 1, it is characterized in that, two adjacent groups electrostatic discharge testing element (5) is equal along the spacing distance of first direction.
4. structure of liquid crystal display panel as claimed in claim 1, it is characterized in that, described tft array substrate (1) comprises the substrate (11), the first metal layer (12), the first insulation course (13), semiconductor layer (14), the second insulation course (15), the second metal level (16), the 3rd insulation course (17) and the pixel electrode layer (18) that arrange from bottom to top, and described many groups electrostatic discharge testing element (5) are positioned at same layer with described second metal level (16) and are made by same metal material simultaneously.
5. structure of liquid crystal display panel as claimed in claim 3, is characterized in that, described many groups electrostatic discharge testing element (5) and the material of the second metal level (16) are one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
6. a display panels ESD method for supervising, it is characterized in that, comprise: the step making many groups electrostatic discharge testing element (5) without wiring neighboring area (B) peripheral in the second metal level (16) corresponding viewing area (AA) while making second metal level (16) of display panels tft array substrate (1), and after the successive process often completing one display panels, fixed point is carried out to many groups electrostatic discharge testing element (5) and take pictures, the step of the static discharge situation of monitoring many groups electrostatic discharge testing element (5);
Described many groups electrostatic discharge testing element (5) are spaced and be arranged in parallel along first direction, often organize electrostatic discharge testing element (5) include two edges perpendicular to described first direction second direction mutually and interval and the metallic test bar (51) be oppositely arranged, the opposite end of these two metallic test bars (51) be tip (511); Spacing distance along second direction between the tip (511) of two metallic test bars (51) of each group of electrostatic discharge testing element (5) is unequal.
7. display panels ESD method for supervising as claimed in claim 6, it is characterized in that, the shape of described tip (511) is sharp-pointed triangle.
8. display panels ESD method for supervising as claimed in claim 6, it is characterized in that, two adjacent groups electrostatic discharge testing element (5) is equal along the spacing distance of first direction.
9. display panels ESD method for supervising as claimed in claim 6, it is characterized in that, described many groups electrostatic discharge testing element (5) and the material of the second metal level (16) are one or more the heap stack combination in molybdenum, titanium, aluminium, copper.
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| CN201510715667.4A CN105182648A (en) | 2015-10-28 | 2015-10-28 | Liquid crystal display panel and liquid crystal display panel ESD monitoring method |
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| CN201510715667.4A CN105182648A (en) | 2015-10-28 | 2015-10-28 | Liquid crystal display panel and liquid crystal display panel ESD monitoring method |
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Cited By (8)
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| CN105676512A (en) * | 2016-04-13 | 2016-06-15 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN106291187A (en) * | 2016-08-11 | 2017-01-04 | 京东方科技集团股份有限公司 | The electrostatic discharge detection device of a kind of display device and detection method |
| CN106680635A (en) * | 2017-01-03 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch screen test system and touch screen test method |
| CN108267904A (en) * | 2016-12-30 | 2018-07-10 | 乐金显示有限公司 | Display panel |
| CN108318848A (en) * | 2018-02-13 | 2018-07-24 | 北京无线电计量测试研究所 | A kind of calibrating installation and method of precipitation static discharge electric current |
| CN109285460A (en) * | 2018-11-29 | 2019-01-29 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN112213995A (en) * | 2020-08-20 | 2021-01-12 | 格创东智(天津)科技有限公司 | Intelligent monitoring method and device for factory equipment |
| CN114859589A (en) * | 2022-06-07 | 2022-08-05 | Tcl华星光电技术有限公司 | Display panel and lighting method thereof |
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