CN109493770A - Display panel and its detection method - Google Patents
Display panel and its detection method Download PDFInfo
- Publication number
- CN109493770A CN109493770A CN201811359499.XA CN201811359499A CN109493770A CN 109493770 A CN109493770 A CN 109493770A CN 201811359499 A CN201811359499 A CN 201811359499A CN 109493770 A CN109493770 A CN 109493770A
- Authority
- CN
- China
- Prior art keywords
- transistor
- electrode
- signal
- display panel
- line
- 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.)
- Pending
Links
Classifications
-
- 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
Disclose a kind of display panel and its detection method, the display panel includes display area and non-display area and electrode signal line interconnected and the fan-shaped wiring line for being located at display panel, further includes: the first driving chip connecting with electrode signal line and the second driving chip connecting with fan-shaped wiring line；And with the connection of electrode signal line and the signal opposite with the second driving chip provides circuit, it includes multiple the first transistors that signal, which provides circuit, first pole of the first transistor of odd level and even level is separately connected the first signal input part and second signal input terminal, second driving chip includes multiple second transistors, and the second pole of the first transistor of odd level is connected to the first pole of second transistor by electrode signal line and fan-shaped wiring line.TFT can be produced on inside IC by the display panel of the disclosure, can detect fan-shaped wiring line whether failure while take into account the demand of source electrode charging.
Description
Technical field
The present invention relates to field of liquid crystal display, in particular to a kind of display panel and its detection method.
Background technique
The array substrate of thin film transistor (TFT) (Thin Film Transistor, TFT) liquid crystal display (LCD) is by complicated
Process flow manufacture, route open circuit easy to form and short circuit phenomenon on substrate detect on substrate the open circuit of route and short
Road simultaneously repairs the yield that product can be improved.
And most of can be driven using bi-directional drive design or GIA (gate in array) is designed in TFT LCD,
Display area or fan-shaped wiring line open circuit or short circuit can not detect completely, and current such detection mode will lead to liquid crystal module shape
It can not detected at horizontal light line, leakage is put to follow-up process, and product yield is influenced.Route is also commonly used when lighting test at present
Detection, two kinds of common methods are to will test route using radium-shine laser cutting mode or compressive source input terminal TFT size and done
To inside IC.Radium-shine laser cutting mode can more cutting processing procedures together after sensing, and compress TFT, it is too small to will lead to TFT, nothing
Method meets charge requirement.If when being detected, IC interior location is inadequate, route is laid with outside IC, and will lead to can not
Detect the short circuit or open circuit problem of fan-shaped wiring line circuit.
Summary of the invention
In view of this, the present invention provides a kind of display panel and its detection method, TFT can be produced on inside IC, energy
Detect fan-shaped wiring line whether failure while take into account the demand of source electrode charging.
According to a first aspect of the present invention, a kind of display panel is provided, the viewing area including being located at the display panel
Domain and non-display area and electrode signal line interconnected and fan-shaped wiring line, further includes: connect with the electrode signal line
The first driving chip connect and the second driving chip being connect with the fan-shaped wiring line；And connect with the electrode signal line
It connecing and the signal opposite with second driving chip provides circuit, it includes multiple the first transistors that the signal, which provides circuit,
First pole of the first transistor of odd level and even level is separately connected the first signal input part and second signal input terminal,
Second driving chip includes multiple second transistors, and the second pole of the first transistor of odd level passes through the electricity
Pole signal wire and the fan-shaped wiring line are connected to the first pole of the second transistor.
Preferably, the electrode signal line includes the first electrode signal wire and second electrode signal wire of array arrangement, institute
It states first electrode signal wire to connect with first driving chip, the second electrode signal wire passes through the fan-shaped wiring line
It is connect with second driving chip.
Preferably, the second pole of the second electrode signal wire and the first transistor connects one to one.
Preferably, the second pole of the second transistor passes through the fan-shaped wiring line and the second electrode connecting line
It is connected to the second pole of the first transistor of even level.
Preferably, it is connected with a second transistor between the every two adjacent second electrode signal wires, described
The quantity of one transistor is two times of the quantity of the second transistor.
Preferably, the type of the first transistor of the first transistor and even level of odd level is different, odd number
The control electrode of the first transistor of grade and even level receives first control signal and second control signal respectively, and described second
The control electrode of transistor receives third and controls signal.
Preferably, the second pole of the second transistor is commonly connected to third signal input part, the second transistor
Control electrode receive third control signal.
Preferably, the type of the first transistor of the first transistor and even level of odd level is identical, owns
The control electrode of the first transistor receives first control signal, the quantity of the first transistor and the second transistor
Quantity it is identical.
Preferably, the first electrode signal wire is grid line, and the second electrode signal wire is source electrode line；Described first
Driving chip is grid drive chip, and second driving chip is source driving chip；The first transistor of odd level
It is N-type metal-oxide-semiconductor with the second transistor.
According to a second aspect of the present invention, a kind of detection method of display panel is provided, the display panel is described above
Display panel, the detection method includes: the multiple the first transistors and multiple second transistors to odd level
Control electrode input respectively first control signal and third control signal；Control to multiple the first transistors of even level
Pole inputs one of first control signal and second control signal；According to the lines that a certain position of display area occurs, certain is judged
The corresponding electrode signal line in one position and the fan-shaped wiring line are with the presence or absence of open circuit or short circuit phenomenon.
Display panel provided by the invention and its detection method, by the way that TFT is respectively set at the both ends of electrode signal line, and
The voltage on wire electrodes signal wire is detected, to judge whether the fan-shaped wiring line connecting with electrode signal line breaks down,
If being not received by voltage or voltage swing being improper, fan-shaped wiring line open circuit or short circuit.
The present invention can make in a relatively short period of time the voltage in adjacent detection line identical, and when lighting test is used to fill
Electric time reduces, it is possible to which the size for compressing TFT is integrated in inside IC, can be with to adapt to lesser space inside IC
Wireline inspection and charge requirement are taken into account, easy to operate, detection is efficient.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from.
Fig. 1 shows the schematic circuit of the display panel of first embodiment of the invention.
Fig. 2 shows the schematic circuit of the display panel of first embodiment of the invention at work.
Fig. 3 shows the waveform diagram of each input signal of the display panel of first embodiment of the invention at work.
Fig. 4 shows the waveform of the adjacent two strip electrodes signal wire of the display panel of first embodiment of the invention at work
Figure.
Fig. 5 shows the waveform diagram that Fig. 4 of first embodiment of the invention amplifies at A.
Fig. 6 shows the schematic circuit of the display panel of second embodiment of the invention.
Specific embodiment
The various embodiments that the present invention will be described in more detail that hereinafter reference will be made to the drawings.In various figures, identical element
It is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Fig. 1 shows the schematic circuit of the display panel of first embodiment of the invention, and Fig. 2 shows the present invention first to implement
The schematic circuit of the display panel of example at work.As depicted in figs. 1 and 2, the display panel 100 of the present embodiment includes point
Not Wei Yu display panel display area 110 and non-display area 120 and electrode signal line interconnected and fan-shaped wiring line
Road 121.
The display panel 100 of the present embodiment further include: the first driving chip 111 for being connect with electrode signal line and with sector
The second driving chip 112 that wiring line 121 connects, and connect with electrode signal line and with the second driving chip 112 relatively
Signal provide circuit 130.Electrode signal line includes the first electrode signal wire 113 and second electrode signal wire of array arrangement
114, first electrode signal wire 113 is connect with the first driving chip 111, and second electrode signal wire 114 passes through fan-shaped wiring line
121 connect with the second driving chip 112.Preferably, first electrode signal wire 113 is gate lines G 1, G2 ... Gm, second electrode
Signal wire 114 is source electrode line S1, S2 ... Sn, and the first driving chip 111 is grid drive chip, and the second driving chip 112 is
Source driving chip.114 cross arrangement of first electrode signal wire 113 and second electrode signal wire, is also connected with thin in infall
Film transistor 115 forms multiple pixel units.
The present embodiment illustrates for detecting to the fan-shaped wiring line 121 connecting with source electrode line S1, S2 ... Sn,
It includes multiple the first transistors, the first pole connection the of the first transistor N1, N2 ... Nn of odd level that signal, which provides circuit 130,
One signal input part receives the first input signal SO, the first pole connection second of the first transistor P1, P2 ... Pn of even level
Signal input part, receive the second input signal SE, the second of all the first transistors extremely with second electrode signal wire 114 one by one
It is correspondingly connected with.
In the present embodiment, the first transistor N1, N2 ... Nn of odd level and the first transistor P1, P2 ... of even level
The control electrode of Pn receives first control signal ADDO and second control signal ADDE respectively, the first transistor N1 of odd level,
The type of N2 ... Nn and the first transistor P1, P2 ... Pn of even level is different, such as respectively N-type metal-oxide-semiconductor and p-type MOS
Pipe.
Second driving chip 112 includes multiple second transistor MN1, MN2 ... MNn, and every two the second adjacent electricity
A second transistor is connected between pole signal wire 114, then the quantity of the first transistor is the two of the quantity of second transistor
Times.Specifically, the second pole of the first transistor N1, N2 ... Nn of odd level are matched by second electrode signal wire 114 and sector
Line route 121 is connected to the first pole of second transistor MN1, MN2 ... MNn, and the of second transistor MN1, MN2 ... MNn
Two poles pass through fan-shaped wiring line 121 and second electrode connecting line 114 is connected to the first transistor P1, P2 ... Pn of even level
The second pole, the control electrode of second transistor MN1, MN2 ... MNn receives third and controls signal ADD.For example, the first order first
The first pole of transistor N1 receives the first input signal SO, and control electrode receives first control signal ADDO, and the second pole passes through source electrode
Line S1 and fan-shaped wiring line 121 are connected to the first pole of the second transistor MN1 of the first order, the second transistor of the first order
The second pole of MN1 is connected to the second pole of second level the first transistor P1 further through fan-shaped wiring line 121 and source electrode line S2, the
The first pole of second level the first transistor P1 receives the second input signal SE, and control electrode receives second control signal ADDE, and second is brilliant
The control electrode of body pipe MN1 receives third and controls signal ADD.
Further, second transistor is, for example, N-type metal-oxide-semiconductor, and the first pole of the first transistor and second transistor is
Drain electrode, the second pole is source electrode, control extremely grid.As first control signal ADDO, the third input of control signal ADD and first
Signal SO is high level, when second control signal ADDE and the second input signal SE are low level, the first transistor of odd level
N1, N2 ... Nn and second electrode signal wire 114, fan-shaped wiring line 121, second transistor MN1 ... MNn, and it is fan-shaped
Current path is formed between the first transistor P1, P2 ... Pn of wiring line 121, second electrode signal wire 114 and even level.
When being detected, can on every line of fan-shaped wiring line 121 corresponding with source electrode line S1-Sn or from
Some detection voltage V1, V2, V3 ... Vn is successively taken on source electrode line S1-Sn respectively, the size by detecting voltage judges fan-shaped
Wiring line 121 whether there is failure.
Fig. 3 shows the waveform diagram of each input signal of the display panel of first embodiment of the invention at work.Such as Fig. 3 institute
Show, abscissa represents the time, and ordinate indicates that voltage, first control signal ADDO and the first input signal SO are periodically square
Wave, the high level of first control signal ADDO are, for example, 20V, and low level is, for example, 0V, the high level example of the first input signal SO
For example 4V, low level are, for example, -4V；It is high level, for example, 22V, second control signal ADDE and that third, which controls signal ADD,
Two input signal SE are low level, for example, second control signal ADDE is -7V, the second input signal SE is 0V.
Fig. 4 shows the waveform of the adjacent two strip electrodes signal wire of the display panel of first embodiment of the invention at work
Figure, Fig. 5 show the waveform diagram that Fig. 4 of first embodiment of the invention amplifies at A.
In conjunction with Fig. 1-Fig. 5, at work, first control signal ADDO first is opened circuit, and second control signal ADDE is closed
It closing, i.e. it is 20V that first control signal ADDO, which is in the high level of square wave, the low level of second control signal ADDE -7V, first
Input signal SO accesses high level 4V, and third controls signal ADD also input high level, such as 22V, detects voltage V1, V2 ...
Size and record；After a period of time, the first input signal SO accesses low level -4V, and first control signal ADDO is from high level
20V is reduced to low level 0V, and increasing is 20V, detects the size and record of voltage V1, V2 ...；It repeats the above process to obtain figure
4, as shown in figure 4, for the waveform situation of two root polar curve S1 and S2 when detecting that is connected, by simulation result it is found that two root poles
The waveform of line S1 and S2 are similar to the waveform of the first input signal SO, are also square wave, and since initial time, are being separated by
After 186us, the voltage of the voltage V1 and V2 of two root polar curve S1 and S2 are increased to identical value, at present the charging time of lighting test
It is all disposed within 2ms or so, 186us is much larger than, will not influence the charging of display panel, fan-shaped wiring line 121 can be carried out
Wireline inspection.
And when display panel carries out lighting test, due to charging time long enough used, so second transistor can
To be made very small, to adapt to the 112 lesser space in inside of the second driving chip.The size of second transistor is for example set as
30um/3.5um, the size of the first transistor are normal design, for example, 500um/3.5um.
The display panel of the present embodiment provides end in signal and carries out conventional design, guarantees to charge using multiple the first transistors
Stabilization, small-sized second transistor is added in design in the driving chip at fan-shaped wiring line end, and source-drain electrode connects adjacent respectively
Two grid lines, detect fan-shaped wiring line whether failure, so the present embodiment can combine the charging time, charging ability and
The problem of wireline inspection.
The present invention illustrates so that source electrode line S1, S2 ... Sn connect with fan-shaped wiring line 121 and to detect as an example, in other realities
It applies in example, the fan-shaped wiring line connecting with gate lines G 1, G2 ... Gm can also be detected, then second transistor is integrated
Inside grid drive chip, signal offer circuit is opposite with grid drive chip, and detection process is for example described with embodiment one
It is identical.In other embodiments, the fan-shaped wiring line connecting with grid line and source electrode line can also be detected simultaneously.
Fig. 6 shows the schematic circuit of the display panel of second embodiment of the invention.
The present embodiment and the detection circuit of embodiment one are slightly different, compared to the first embodiment, the display of the present embodiment
Signal where panel provides circuit 230 in signal provides end, a first control signal ADDO is only arranged, and in the second driving
212 side of chip increases a source signal input terminal, only the simple disconnection problem for detecting fan-shaped wiring line 221.
In the present embodiment, the type of the first transistor of the first transistor and even level of odd level is identical, for example, all
The first transistor N1 ', N2 ' ... Nn ' and all second transistor MN1 ', MN2 ' ... MNn ' are N-type metal-oxide-semiconductor, and first is brilliant
Body pipe N1 ', N2 ' ... Nn ' the second pole the second crystalline substance is connected to by second electrode signal wire 214 and fan-shaped wiring line 221
The first pole of body pipe MN1 ', MN2 ' ... MNn ', the first transistor N1 ', N2 ' ... Nn ' and second transistor MN1 ',
MN2 ' ... MNn ' is corresponded, and quantity is identical.
The first of the first transistor N2 ' of the first transistor N1 ', the N3 ' ... of odd level and even level, N4 ' ...
Pole receives the first input signal SO and the second input signal SE respectively, and control electrode receives first control signal ADDO；Second is brilliant
Body pipe MN1 ', MN2 ' ... MNn ' the second pole be commonly connected to third signal input part, receive third input signal source
Signal, the control electrode reception third control signal ADD of second transistor MN1 ', MN2 ' ... MNn '.
The first transistor N1 ', N2 ' ... the Nn ' of every level-one pass through the source electrode line being attached thereto and fan-shaped wiring line
Current path is formed between corresponding second transistor MN1 ', MN2 ' ... MNn ', passes through detection source electrode line or fan-shaped wiring
Voltage on circuit, it can be determined that whether fan-shaped wiring line breaks down.
The present invention also provides a kind of detection method of display panel, display panel is above-mentioned display panel, detection method
It include: to input first control signal and respectively to multiple the first transistors of odd level and the control electrode of multiple second transistors
Three control signals；To even level multiple the first transistors control electrode input first control signal and second control signal it
One；According to the lines that a certain position of display area occurs, the corresponding electrode signal line in a certain position and fan-shaped wiring line are judged
Road is with the presence or absence of open circuit or short circuit phenomenon.
For the circuit structure of embodiment one, it is preferable that the control to multiple the first transistor N1, N2 ... Nn of odd level
Pole processed inputs first control signal ADDO, controls signal to the control electrode of multiple second transistor MN1 ... MNn input third
ADD inputs second control signal ADDE to the control electrode of multiple the first transistor P1, P2 ... Pn of even level；And to odd number
The first pole difference of multiple the first transistor P1, P2 ... Pn of multiple the first transistor N1, N2 ... Nn and even level of grade
Input the first input signal SO and the second input signal SE.Further, first control signal ADDO, third control signal ADD
It is high level with the first input signal SO, second control signal ADDE and the second input signal SE are low level.
For the circuit structure of embodiment two, it is preferable that the control of the first transistor N1 ', N2 ' ... Nn ' of Xiang Suoyou
Pole inputs first control signal ADDO, to the input third control of the control electrode of multiple second transistor MN1 ', MN2 ' ... MNn '
Signal ADD, and to multiple the first transistor N2 ' of multiple the first transistor N1 ', the N3 ' ... of odd level and even level,
The first pole of N4 ' ... inputs the first input signal SO and the second input signal SE respectively, to multiple second transistor MN1 ',
The second pole of MN2 ' ... MNn ' inputs third input signal source signal；Further, first control signal ADDO, third
Controlling signal ADD and the first input signal SO is high level, and the second input signal SE is also high level.
Preferably, it first extremely drains, the second extremely source electrode.When can't detect the voltage on electrode signal line, explanation
Fan-shaped wiring line open circuit, if the electric voltage exception detected, fan-shaped wiring line short circuit.
Display panel provided by the invention and its detection method by the way that TFT is respectively set at the both ends of electrode signal line, and
The voltage on wire electrodes signal wire is detected, to judge whether the fan-shaped wiring line connecting with electrode signal line breaks down,
The voltage in adjacent detection line can be made in a relatively short period of time identical, the charging time used when much smaller than lighting test,
So the size of TFT can be compressed, it is integrated in inside IC, wireline inspection and charge requirement can be taken into account, easy to operate, inspection
It surveys efficient.
Finally, it should be noted that as described above according to the embodiment of the present invention, there is no detailed descriptionthes for these embodiments
All details, also not limiting the invention is only the specific embodiment.Obviously, as described above, many repair can be made
Change and changes.All any modification, equivalent replacement, improvement and so within the spirit and principles of the present invention, should be included in
Within protection scope of the present invention.The present embodiment is chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, thus enable skilled artisan well using the present invention and on the basis of the present invention
Modification use.The invention is limited only by the claims and the full scope thereof and equivalents thereof.
Claims (10)
1. a kind of display panel, display area and non-display area and interconnected including being located at the display panel
Electrode signal line and fan-shaped wiring line, which is characterized in that further include:
The first driving chip being connect with the electrode signal line and the second driving chip being connect with the fan-shaped wiring line；
And
With electrode signal line connection and the signal opposite with second driving chip provides circuit,
It includes multiple the first transistors that the signal, which provides circuit, the first pole of the first transistor of odd level and even level
It is separately connected the first signal input part and second signal input terminal,
Second driving chip includes multiple second transistors, and the second pole of the first transistor of odd level passes through institute
It states electrode signal line and the fan-shaped wiring line is connected to the first pole of the second transistor.
2. display panel according to claim 1, which is characterized in that the electrode signal line includes the first of array arrangement
Electrode signal line and second electrode signal wire, the first electrode signal wire are connect with first driving chip, and described second
Electrode signal line is connect by the fan-shaped wiring line with second driving chip.
3. display panel according to claim 2, which is characterized in that the second electrode signal wire and the first crystal
Second pole of pipe connects one to one.
4. display panel according to claim 3, which is characterized in that the second pole of the second transistor passes through the fan
Shape wiring line and the second electrode connecting line are connected to the second pole of the first transistor of even level.
5. display panel according to claim 4, which is characterized in that every two adjacent second electrode signal wires it
Between be connected with a second transistor, the quantity of the first transistor is two times of the quantity of the second transistor.
6. display panel according to claim 4, which is characterized in that the first transistor of odd level and even level
The type of the first transistor is different, and the control electrode of the first transistor of odd level and even level receives the first control respectively
Signal processed and second control signal, the control electrode of the second transistor receive third and control signal.
7. display panel according to claim 3, which is characterized in that the second pole of the second transistor is commonly connected to
Third signal input part, the control electrode of the second transistor receive third and control signal.
8. display panel according to claim 7, which is characterized in that the first transistor of odd level and even level
The type of the first transistor is identical, and the control electrode of all the first transistors receives first control signal, and described
The quantity of one transistor is identical as the quantity of the second transistor.
9. display panel according to claim 2, which is characterized in that
The first electrode signal wire is grid line, and the second electrode signal wire is source electrode line；
First driving chip is grid drive chip, and second driving chip is source driving chip；
The first transistor and the second transistor of odd level are N-type metal-oxide-semiconductor.
10. a kind of detection method of display panel, the display panel is display surface of any of claims 1-9
Plate, which is characterized in that the detection method includes:
The control electrode of multiple the first transistors and multiple second transistors to odd level inputs the first control respectively
Signal and third control signal；
One of first control signal and second control signal are inputted to the control electrode of multiple the first transistors of even level；
According to the lines that a certain position of display area occurs, the corresponding electrode signal line in a certain position and the fan are judged
Shape wiring line is with the presence or absence of open circuit or short circuit phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359499.XA CN109493770A (en) | 2018-11-15 | 2018-11-15 | Display panel and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359499.XA CN109493770A (en) | 2018-11-15 | 2018-11-15 | Display panel and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109493770A true CN109493770A (en) | 2019-03-19 |
Family
ID=65694956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811359499.XA Pending CN109493770A (en) | 2018-11-15 | 2018-11-15 | Display panel and its detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109493770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179794A (en) * | 2020-01-06 | 2020-05-19 | 京东方科技集团股份有限公司 | Detection circuit, array substrate and display panel |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412735A (en) * | 2001-10-11 | 2003-04-23 | 三星电子株式会社 | Film transistor array panel with visual checking device and its checking method |
| US20070091040A1 (en) * | 2005-10-20 | 2007-04-26 | Innolux Display Corp. | Driving circuit having voltage detecting circuit and liquid crystal display using same |
| US20070296453A1 (en) * | 2006-05-18 | 2007-12-27 | Toshiba Matsushita Display Technology Co., Ltd. | Display element |
| CN103186000A (en) * | 2011-12-31 | 2013-07-03 | 上海中航光电子有限公司 | Liquid crystal display device and test method thereof |
| CN103217844A (en) * | 2013-04-01 | 2013-07-24 | 合肥京东方光电科技有限公司 | Display panel and display device |
| CN104793365A (en) * | 2015-04-23 | 2015-07-22 | 深圳市华星光电技术有限公司 | Display panel circuit detecting device and method |
| US20150241501A1 (en) * | 2014-02-25 | 2015-08-27 | Samsung Display Co., Ltd. | Display apparatus and method of testing the same |
| CN106205444A (en) * | 2016-09-27 | 2016-12-07 | 昆山龙腾光电有限公司 | Display floater and detection method thereof |
| CN106782255A (en) * | 2017-03-23 | 2017-05-31 | 京东方科技集团股份有限公司 | One kind detection circuit, detection method and detection means |
| CN107492353A (en) * | 2017-07-21 | 2017-12-19 | 惠科股份有限公司 | The driving method and drive device of display panel |
| US20180102396A1 (en) * | 2016-03-24 | 2018-04-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Repair structure of line defect of amoled display panel and repair method |
| CN108053786A (en) * | 2018-02-07 | 2018-05-18 | 京东方科技集团股份有限公司 | Data-driven module and its abatement detecting method, display device |
| CN207458545U (en) * | 2017-11-23 | 2018-06-05 | 昆山龙腾光电有限公司 | A kind of display panel and display device |
| CN108172155A (en) * | 2018-01-05 | 2018-06-15 | 京东方科技集团股份有限公司 | A kind of detection device and detection method |
| CN108447450A (en) * | 2018-03-05 | 2018-08-24 | 昆山龙腾光电有限公司 | Gate driving circuit, display device and driving method |
| CN108766373A (en) * | 2018-05-08 | 2018-11-06 | 昆山龙腾光电有限公司 | A kind of detection circuit and liquid crystal display device |
-
2018
- 2018-11-15 CN CN201811359499.XA patent/CN109493770A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412735A (en) * | 2001-10-11 | 2003-04-23 | 三星电子株式会社 | Film transistor array panel with visual checking device and its checking method |
| US20070091040A1 (en) * | 2005-10-20 | 2007-04-26 | Innolux Display Corp. | Driving circuit having voltage detecting circuit and liquid crystal display using same |
| US20070296453A1 (en) * | 2006-05-18 | 2007-12-27 | Toshiba Matsushita Display Technology Co., Ltd. | Display element |
| CN103186000A (en) * | 2011-12-31 | 2013-07-03 | 上海中航光电子有限公司 | Liquid crystal display device and test method thereof |
| CN103217844A (en) * | 2013-04-01 | 2013-07-24 | 合肥京东方光电科技有限公司 | Display panel and display device |
| US20150241501A1 (en) * | 2014-02-25 | 2015-08-27 | Samsung Display Co., Ltd. | Display apparatus and method of testing the same |
| CN104793365A (en) * | 2015-04-23 | 2015-07-22 | 深圳市华星光电技术有限公司 | Display panel circuit detecting device and method |
| US20180102396A1 (en) * | 2016-03-24 | 2018-04-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Repair structure of line defect of amoled display panel and repair method |
| CN106205444A (en) * | 2016-09-27 | 2016-12-07 | 昆山龙腾光电有限公司 | Display floater and detection method thereof |
| CN106782255A (en) * | 2017-03-23 | 2017-05-31 | 京东方科技集团股份有限公司 | One kind detection circuit, detection method and detection means |
| CN107492353A (en) * | 2017-07-21 | 2017-12-19 | 惠科股份有限公司 | The driving method and drive device of display panel |
| CN207458545U (en) * | 2017-11-23 | 2018-06-05 | 昆山龙腾光电有限公司 | A kind of display panel and display device |
| CN108172155A (en) * | 2018-01-05 | 2018-06-15 | 京东方科技集团股份有限公司 | A kind of detection device and detection method |
| CN108053786A (en) * | 2018-02-07 | 2018-05-18 | 京东方科技集团股份有限公司 | Data-driven module and its abatement detecting method, display device |
| CN108447450A (en) * | 2018-03-05 | 2018-08-24 | 昆山龙腾光电有限公司 | Gate driving circuit, display device and driving method |
| CN108766373A (en) * | 2018-05-08 | 2018-11-06 | 昆山龙腾光电有限公司 | A kind of detection circuit and liquid crystal display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179794A (en) * | 2020-01-06 | 2020-05-19 | 京东方科技集团股份有限公司 | Detection circuit, array substrate and display panel |
| WO2021139658A1 (en) * | 2020-01-06 | 2021-07-15 | 京东方科技集团股份有限公司 | Test circuit, array substrate, and display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206610040U (en) | The display device of sensor and belt sensor | |
| US7551240B2 (en) | Electrostatic discharge (ESD) protection circuit integrated with cell test function | |
| US7532265B2 (en) | Integrated circuit with the cell test function for the electrostatic discharge protection | |
| CN102005196B (en) | Shift register with low power loss | |
| CN108281123A (en) | Shift register cell, gate driving circuit, display device and driving method | |
| CN101097673B (en) | Electrostatic discharge protection integrated circuit with single-sided board function testing | |
| US9489907B2 (en) | Gate driver circuit basing on IGZO process | |
| KR101950943B1 (en) | Display device including electrostatic protection circuit and manufacturing method thereof | |
| CN108877650A (en) | Pixel-driving circuit, driving compensation method, display base plate and display device | |
| CN101136588B (en) | Voltage converter and display device comprising a voltage converter | |
| CN101236338A (en) | Array substrate and display panel having the same | |
| CN103165091A (en) | Liquid crystal display device having discharge circuit and method of driving thereof | |
| CN105913822A (en) | GOA (Gate Driver on Array) signal judging circuit and judging method, gate driving circuit and display device | |
| CN103913865A (en) | Display device | |
| CN103489394A (en) | Organic light emitting diode display | |
| KR20150069317A (en) | Gate driver circuit outputs overlapped pulses | |
| US20060158421A1 (en) | Driver circuit of display device and method of driving the same | |
| CN101866606B (en) | Scanning line driving circuit, display device, and scanning line driving method | |
| CN102324420A (en) | Semiconductor device | |
| CN1979856A (en) | Electrostatic discharge protection circuit, display panel, and electronic system utilizing the same | |
| CN109272960A (en) | Gate driving circuit and display device | |
| CN107978286A (en) | The method of the characteristic of display panel and monitoring gating drive circuit | |
| CN108281105B (en) | Scanning signal adjusting method and device and display device | |
| CN108242223A (en) | Board driving mchanism and display device | |
| CN109493770A (en) | Display panel and its detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant before: Kunshan Longteng Optronics Co., Ltd. |
|
| CB02 | Change of applicant information |