CN105785610B - Liquid crystal display panel measurement circuit - Google Patents
Liquid crystal display panel measurement circuit Download PDFInfo
- Publication number
- CN105785610B CN105785610B CN201610280685.9A CN201610280685A CN105785610B CN 105785610 B CN105785610 B CN 105785610B CN 201610280685 A CN201610280685 A CN 201610280685A CN 105785610 B CN105785610 B CN 105785610B
- Authority
- CN
- China
- Prior art keywords
- data line
- liquid crystal
- stub
- crystal display
- display panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The present invention provides a kind of liquid crystal display panel measurement circuit, test for liquid crystal display panel, the liquid crystal display panel includes multiple pixel units, the data line of the same side is wherein connected with the pixel unit of a line, the pixel unit of same row adjacent rows is separately connected the data line of two sides, the measurement circuit includes that the first data line tests stub, second data line tests stub, the first data line test stub and the second data line test stub include danger signal line, green line and blue signal line, the data line of the liquid crystal display panel is according to red, it is green, blue sequence alternate is connected to the first data line test stub and the second data line test stub.It is an advantage of the current invention that providing a kind of pair of data line signal two sides above and below liquid crystal display panel intersects the measurement circuit that the liquid crystal display panel fed is tested, the test of high accuracy is provided.
Description
Technical field
The present invention relates to liquid crystal display panel field more particularly to a kind of liquid crystal display panel measurement circuits.
Background technique
In liquid crystal display panel production process, it generally can all carry out once being powered on the test lighted, to detect liquid crystal picture
Whether element display is normal.It is main using test stub (Shorting bar) in the technology of existing liquid crystal display panel test detection
The mode of panel wiring is tested, and the test stub is exactly the face for being shorted independent gate signal or data-signal
Plate region, the various exceptions that LCD display intralamellar part occurs, can theoretically be detected by this test at this station
Come, it should guarantee to be tested to each pixel unit offer signal.
As shown in Figure 1, Fig. 1 shows a kind of structural schematic diagram of typical liquid crystal display panel LCD array substrate, the array
Substrate includes viewing area 10 and the peripheral region 11 positioned at 10 periphery of viewing area.
A plurality of orthogonal data line Dm and grid line Gn, each data line Dm and grid line are provided in viewing area 10
Gm infall connects a pixel unit 14.The peripheral region 11 is provided with the first test stub 15 and public electrode wire 16,
Danger signal line R, green line G are provided on the first test stub 15 and blue signal line B (is corresponded respectively to red green
The test of blue R/G/B), the data line Dm connecting with red pixel cell is connected to danger signal line R, with green pixel cell
The data line Dm of connection is connected to green line G, and the data line Dm connecting with blue pixel cells is connected to blue letter
Number line B, danger signal line R, green line G and blue signal line B are used to that data line test letter to occur to the data line Dm
Number, the public electrode wire 16 is used for each pixel unit 14 into viewing area 10 and provides public electrode；The peripheral region also
Be provided with the second test stub 18, the second test stub 18 is provided with a plurality of grid line p-wire 19, respectively with viewing area 10
In each grid line Gn connection, for the grid line Gn occur grid line test signal, pass through it is described first test stub 15 and second
Test stub 18 can light pixel unit 14, when the first test stub 15 provides R signal and the second test unlatching of stub 18
When, all red pixel cells are lighted, and when the first test stub 15 provides Gn signal and the second test stub 18 is opened, are owned
Green pixel cell is lighted, when the first test stub 15 provides B signal and the second test stub 18 is opened, all blue pixels
Unit is lighted, thus detect liquid crystal pixel show it is whether defective.
The resolution ratio of TV panel is higher and higher at present, and screen size is certain, and resolution ratio is higher, and data line is immediately also increasingly
More, data line is more, required COF (the Chip on Film flip introduced external data signal in liquid crystal display panel
Film) quantity is also more and more, and the pin of COF has the certain amount upper limit, the distance between COF and COF are also required to enough
Space meets processing procedure boundary (margin).And the panel that size is certain, since space is limited, the COF IC that unilateral side is put has one
Fixed quantity limitation, in the case that panel data line is more and more face to face, is difficult to put COF as traditional design scheme.
Referring to fig. 2, in order to solve the problems, such as that the unilateral space COF of putting is inadequate, by the signal of data line D1~Dm from liquid crystal
Two sides intersection is fed panel up and down, and the signal of grid line G1~Gn is still fed from liquid crystal display panel side, multiple data line date
The opposite two sides up and down of liquid crystal display panel are arranged in COF, and multiple grid line Gate COF are arranged in liquid crystal display panel side, in this way, in phase
In the case where with data line quantity, the space that can double.A kind of this solution for the resolution panels of small-medium size
Certainly scheme.
For above-mentioned data line signal, two sides intersect the liquid crystal display panel fed, conventional liquid crystal display panel above and below liquid crystal display panel
Detection method obviously cannot be applied, and therefore, needing one kind, the two sides intersection above and below liquid crystal display panel is fed applied to data line signal
Liquid crystal display panel measurement circuit.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of liquid crystal display panel measurement circuits, can be to data
Line signal two sides above and below liquid crystal display panel, which intersect the liquid crystal display panel fed, to be tested, and the test of high accuracy is provided.
To solve the above-mentioned problems, the present invention provides a kind of liquid crystal display panel measurement circuit, the LCD display
Plate includes multiple pixel units, wherein the data line of the same side is connected with the pixel unit of a line, the pixel of same row adjacent rows
Unit is separately connected the data line of two sides, which is characterized in that the measurement circuit includes the first data line test stub, the second number
Stub is tested according to line, the first data line test stub and the second data line test stub include danger signal line, green
The data line of signal wire and blue signal line, the liquid crystal display panel is connected to described according to the sequence alternate of red, green, blue
One data line tests stub and the second data line tests stub.
Further, one first data line connects the danger signal line of the first data line test stub, with described first
The second adjacent data line of data line connects the green line of the second data line test stub, with second data line
Adjacent third data line connects the blue signal line of the first data test stub, and adjacent with the third data line
Four data lines connect the danger signal line of second data line test stub, the data line of the liquid crystal display panel with it is described
First data line test stub and the second data line test stub are so circuited sequentially and are alternately connected.
Further, the first data line test stub and the second data line test stub are separately positioned on the liquid crystal
Show the two sides up and down of panel.
Further, one first public electrode wire is additionally provided in first data line test stub side.
Further, one second public electrode wire is additionally provided in second data line test stub side.
Further, the measurement circuit further includes odd number grid line test stub and even number grid line test stub, the odd number
Grid line test stub is connect with odd number grid line, and the even number grid line test stub is connect with even number grid line, if opening the odd number
Grid line tests stub, and the first data line test stub and the second data line test the danger signal line input signal of stub,
Then the red pixel of all odd-numbered lines is lighted, the green letter of the first data line test stub and the second data line test stub
Number line input signal, then the green pixel of all odd-numbered lines is lighted, and the first data line test stub and the second data line are surveyed
The blue signal line input signal of stub is tried, then the blue pixel of all odd-numbered lines is lighted；If opening the even number grid line test
Stub, the first data line test stub and the second data line test the green line input signal of stub, then all idols
Several rows of red pixel is lighted, the blue signal line input of the first data line test stub and the second data line test stub
Signal, then the green pixel of all even number lines is lighted, and the first data line test stub and the second data line test stub
Danger signal line input signal, then the blue pixel of all even number lines is lighted.
Further, the liquid crystal display panel is arranged in the odd number grid line test stub and even number grid line test stub
The same side.
Further, stub is tested in the odd number grid line and even number grid line test stub side is additionally provided with a third common electrical
Polar curve.
Further, the liquid crystal display panel includes display area and the peripheral region positioned at the display area periphery,
The peripheral region of liquid crystal display panel is arranged in the measurement circuit.
It is an advantage of the current invention that test signal is divided into two groups of data line test stubs, two groups of data lines test stub
Alternating is connect with data line, can be used for data line signal in the survey of the not ipsilateral liquid crystal display panel fed of liquid crystal display panel
Examination, improves the accuracy of test, and make full use of space.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of typical liquid crystal display panel LCD array substrate；
Fig. 2 is a kind of driving framework of existing liquid crystal display panel；
Fig. 3 is the structural schematic diagram of the array substrate of this valve liquid crystal display panel.
Specific embodiment
The specific embodiment of liquid crystal display panel measurement circuit provided by the invention is done specifically with reference to the accompanying drawing
It is bright.
Referring to Fig. 3, liquid crystal display panel includes viewing area 30 and the peripheral region 40 that 30 periphery of display is arranged in.
A plurality of orthogonal data line and grid line are provided in viewing area 30, each data line connect a picture with grid line infall
Plain unit 31.In this embodiment, data line D1~D12 and grid line G1~G7 is schematically indicated.
The liquid crystal display panel includes multiple pixel units 31, wherein the pixel unit 31 with a line connects the same side
Data line, the pixel unit 31 of same row adjacent rows are separately connected the data line of two sides, that is to say, that are located in the middle data line
It can be connected by the pixel unit 31 of row interval and the left and right sides, as the structure of 1G1D Flip drive form, as shown in figure 3, odd
Several rows of pixel unit 31 is connect with the data line on the left of it, and the pixel unit 31 of even number line connects with the data line on the right side of it
It connects, for example, the pixel unit 31 of first row, the pixel unit 31 of odd-numbered line is connected to the first data line D1, the pixel of even number line
Unit 31 is connected to the second data line D2.In this embodiment, the signal of the data line is from liquid crystal display panel
Upper and lower two sides, which intersect, to be fed.
The peripheral region 40 is provided with liquid crystal display panel measurement circuit.Liquid crystal display panel measurement circuit of the present invention
Stub 41 is tested including the first data line and the second data line tests stub 42.First data line tests stub 41 and second
It includes danger signal line R, green line G and blue signal line B, the danger signal line R use that data line, which tests stub 42,
In providing red test signal, the green line G is for providing green test signal, and the blue signal line B is for mentioning
Signal is tested for blue.
The data line of the liquid crystal display panel is connected to first data line according to the sequence alternate of red, green, blue and surveys
It tries stub 41 and the second data line tests stub 42, i.e., the described data line and first data line test stub 41 and the second number
It is RGBRGB according to line test 42 order of connection of stub, the first data line test stub 41 and the second data line test stub 42
For to data line input test signal.For example, one first data line D1 connects the red of the first data line test stub 41
Chrominance signal line R, the second data line D2 adjacent with the first data line D1 connect the second data line test stub 42
Green line G, the third data line D3 adjacent with the second data line D2 connect the first data test stub 41
Blue signal line B, the fourth data line D4 connection adjacent with the third data line D3, second data line test stub 42
Danger signal line R, so circuit sequentially so that the data line of the liquid crystal display panel and first data line test it is short
Stick 41 and the second data line test stub 42 alternately connect, i.e., the described data line is sequentially connected with the first data according to RGB's
Line tests stub 41 and the second data line tests stub 42.
The measurement circuit further includes odd number grid line test stub 43 and even number grid line test stub 44, the odd number grid line
Test stub 43 is connect with odd number grid line, and the even number grid line test stub 44 is connect with even number grid line, is used for the odd number
Grid line and even number grid line input test signal, when the odd number grid line tests stub 43 to odd number grid line input test signal,
The data line intersected with the odd number grid line.
Liquid crystal display panel measurement circuit test process of the present invention is as follows, and signal of every input can only light half
Corresponding picture element signal.
The odd number grid line test stub 43 is opened, the odd number grid line is tested stub 43 and believed to odd number grid line input test
Number, the danger signal line R of first data line test stub 41 and the second data line test stub 42 is to number connected to it
According to line input signal, then the red pixel of all odd-numbered lines is lighted, the first data line test stub 41 and the second data line
The green line G of stub 42 is tested to data line input signal connected to it, then the green pixel of all odd-numbered lines is lighted,
The blue signal line B of first data line test stub 41 and the second data line test stub 42 is to data line connected to it
Input signal, then the blue pixel of all odd-numbered lines is lighted.That is the wiring of data line and first data line test stub 41
Sequence is RBGRBG.
The even number grid line test stub 44 is opened, the idol grid line is tested stub 44 and believed to even number grid line input test
Number, the green line G of first data line test stub 41 and the second data line test stub 42 is to number connected to it
According to line input signal, then the red pixel of all even number lines is lighted, the first data line test stub 41 and the second data line
The blue signal line B of stub 42 is tested to data line input signal connected to it, then the green pixel of all even number lines is lighted,
The danger signal line R of first data line test stub 41 and the second data line test stub 42 is to data line connected to it
Input signal, then the blue pixel of all even number lines is lighted.That is the wiring of data line and second data line test stub 42
Sequence is GRBGRB.
Further, the first data line test stub 41 and the second data line test stub 42 are separately positioned on the liquid
The two sides up and down of LCD panel, the odd number grid line test stub 43 and even number grid line test stub 44 are arranged in the liquid crystal
The same side of display panel, in order to the distribution in space.
It is additionally provided with one first public electrode wire 45 in first data line test, 41 side of stub, in second data
Line test 42 side of stub is additionally provided with one second public electrode wire 46, tests stub 43 in the odd number grid line and even number grid line is surveyed
Examination 44 side of stub is additionally provided with a third public electrode wire 47.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (8)
1. a kind of liquid crystal display panel measurement circuit, the liquid crystal display panel include multiple pixel units, wherein with a line
Pixel unit connects the data line of the same side, and the pixel unit of same row adjacent rows is separately connected the data line of two sides, feature
It is, the measurement circuit includes the first data line test stub, the second data line test stub, the first data line test
Stub and the second data line test stub include danger signal line, green line and blue signal line, the liquid crystal display
The data line of panel is connected to the first data line test stub according to the sequence alternate of red, green, blue and the second data line is surveyed
Stub is tried, wherein one first data line connects the danger signal line of the first data line test stub, with first data
The second adjacent data line of line connects the green line of the second data line test stub, adjacent with second data line
Third data line connect the blue signal line of the first data test stub, fourth number adjacent with the third data line
The danger signal line of the second data line test stub, the data line of the liquid crystal display panel and described first are connected according to line
Data line test stub and the second data line test stub are so circuited sequentially and are alternately connected.
2. liquid crystal display panel measurement circuit according to claim 1, which is characterized in that the first data line test is short
Stick and the second data line test stub are separately positioned on the two sides up and down of the liquid crystal display panel.
3. liquid crystal display panel measurement circuit according to claim 1, which is characterized in that tested in first data line
Stub side is additionally provided with one first public electrode wire.
4. liquid crystal display panel measurement circuit according to claim 3, which is characterized in that tested in second data line
Stub side is additionally provided with one second public electrode wire.
5. liquid crystal display panel measurement circuit according to claim 1, which is characterized in that the measurement circuit further includes surprise
Number grid line test stub and even number grid line test stub, and the odd number grid line test stub is connect with odd number grid line, the even number
Grid line test stub is connect with even number grid line.
6. liquid crystal display panel measurement circuit according to claim 5, which is characterized in that the odd number grid line tests stub
And the same side of the liquid crystal display panel is arranged in even number grid line test stub.
7. liquid crystal display panel measurement circuit according to claim 5, which is characterized in that tested in the odd number grid line short
Stick and even number grid line test stub side are additionally provided with a third public electrode wire.
8. liquid crystal display panel measurement circuit according to claim 1, which is characterized in that the liquid crystal display panel includes
The periphery of liquid crystal display panel is arranged in display area and peripheral region positioned at the display area periphery, the measurement circuit
Region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280685.9A CN105785610B (en) | 2016-04-28 | 2016-04-28 | Liquid crystal display panel measurement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280685.9A CN105785610B (en) | 2016-04-28 | 2016-04-28 | Liquid crystal display panel measurement circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105785610A CN105785610A (en) | 2016-07-20 |
| CN105785610B true CN105785610B (en) | 2019-05-03 |
Family
ID=56400185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280685.9A Active CN105785610B (en) | 2016-04-28 | 2016-04-28 | Liquid crystal display panel measurement circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785610B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200181A (en) * | 2016-09-07 | 2016-12-07 | 深圳市华星光电技术有限公司 | A kind of display panels measurement circuit and display panels |
| CN108335682B (en) * | 2018-02-13 | 2021-05-04 | 厦门天马微电子有限公司 | Display panel, test method and display device |
| CN108983461B (en) * | 2018-08-22 | 2021-04-27 | 惠科股份有限公司 | Array substrate and liquid crystal module |
| CN109557738B (en) * | 2018-12-21 | 2022-06-10 | 惠科股份有限公司 | Test circuit, test method and display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021628A (en) * | 2007-02-16 | 2007-08-22 | 友达光电股份有限公司 | Testing system and method for liquid crystal display panel and array substrate |
| CN101191910A (en) * | 2006-11-30 | 2008-06-04 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and testing method thereof |
| CN101592832A (en) * | 2008-05-29 | 2009-12-02 | 立景光电股份有限公司 | Silica-based liquid crystal panel |
| CN103399422A (en) * | 2013-07-31 | 2013-11-20 | 合肥京东方光电科技有限公司 | Signal line and repair line short circuit detection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI335560B (en) * | 2006-02-17 | 2011-01-01 | Au Optronics Corp | Circuit structure of a display |
-
2016
- 2016-04-28 CN CN201610280685.9A patent/CN105785610B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191910A (en) * | 2006-11-30 | 2008-06-04 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and testing method thereof |
| CN101021628A (en) * | 2007-02-16 | 2007-08-22 | 友达光电股份有限公司 | Testing system and method for liquid crystal display panel and array substrate |
| CN101592832A (en) * | 2008-05-29 | 2009-12-02 | 立景光电股份有限公司 | Silica-based liquid crystal panel |
| CN103399422A (en) * | 2013-07-31 | 2013-11-20 | 合肥京东方光电科技有限公司 | Signal line and repair line short circuit detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105785610A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105759521B (en) | Measurement circuit for the liquid crystal display panel with half source drive pixel array | |
| CN105182644B (en) | The detection method of thin-film transistor array base-plate, display panel and display panel | |
| CN104090440B (en) | Pixel structure, liquid crystal display array substrate and liquid crystal display panel | |
| CN105243980B (en) | Thin-film transistor array base-plate, display panel and the method for detecting pure color picture | |
| CN107967886B (en) | Display panel to be detected, detection method thereof, display panel, mother board and display device | |
| CN107315291B (en) | GOA display panel and GOA display device | |
| CN105785610B (en) | Liquid crystal display panel measurement circuit | |
| US9972232B2 (en) | Liquid crystal display device and method for testing pixels of the same | |
| US7659744B2 (en) | Pixel testing circuit and method for liquid crystal display device | |
| CN104678668A (en) | Thin film transistor array substrate and liquid crystal display panel | |
| US10403648B2 (en) | Array substrates with adjacent sub-pixels having opposite polarities | |
| WO2013159504A1 (en) | Mother board of liquid crystal display device and a liquid crystal display device detection method | |
| US10067384B2 (en) | Detection unit, array structure, liquid crystal display device and detection method | |
| CN105511129A (en) | Display panel, display device and test method for display panel | |
| CN100388108C (en) | LCD subassembly and thin film transistor substrate and testing method | |
| US20150002553A1 (en) | Pixel array | |
| WO2014194539A1 (en) | Test circuit of display panel and test method thereof | |
| CN105974702A (en) | Array substrate and display device | |
| CN105676496B (en) | Liquid crystal display panel and liquid crystal display device | |
| CN205334925U (en) | Display panel and display device | |
| CN105866989A (en) | Array substrate and liquid crystal display panel | |
| CN107578735A (en) | A kind of array base palte, method of testing and display device | |
| CN110580869A (en) | Line detection system | |
| CN106340261A (en) | Array substrate test circuit and display panel | |
| WO2023193294A1 (en) | Liquid crystal display panel and display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |