CN110187531B - Display panel and detection method thereof - Google Patents
Display panel and detection method thereof Download PDFInfo
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- CN110187531B CN110187531B CN201910458464.XA CN201910458464A CN110187531B CN 110187531 B CN110187531 B CN 110187531B CN 201910458464 A CN201910458464 A CN 201910458464A CN 110187531 B CN110187531 B CN 110187531B
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- 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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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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- 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
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The invention provides a display panel and a detection method thereof, wherein the display panel comprises: a plurality of first connecting lines; the plurality of transverse scanning lines and the plurality of longitudinal data lines are arranged in a staggered mode, wherein the data lines are connected with the first connecting lines on the first side of the display panel; a first longitudinal test electrode disposed on a third side of the display panel and vertically crossing the scan line, wherein the transverse test electrode is electrically connected to the first longitudinal test electrode; and a first floating electrode having a terminal electrically connected to the first driving board.
Description
Technical Field
The present invention relates to a display panel and a detection method thereof, and more particularly, to a data line and signal line routing design for facilitating the analysis and repair of the panel.
Background
An active liquid crystal display panel is generally composed of an array substrate, a color filter substrate, and a liquid crystal layer. The array substrate is provided with a plurality of scanning lines (Gate lines) and Data lines (Data lines) which are arranged in a staggered mode to form a plurality of pixel regions.
The Array substrate line driving technology (GOA) is a driving method for scanning a scan line (Gate line) line by fabricating a scan driving signal circuit On an Array substrate by using an Array substrate (Array) process in a conventional tft-lcd.
Fig. 1 is a schematic diagram of electrode traces of a conventional display panel 1 with resolution UD (3840x2160), which has 2160-level scan lines G1, G2, G3, …, G2159, G2160, and 3840 data lines D1, D2, D3, …, D3840. As shown in fig. 1, the 2160-level scan lines are respectively connected to the effective display area 14, and the Data line signal lines from the control board (C-board)11 are firstly passed through the driving boards (X-board)121 and 122 and then passed through the Wire On Array (WOA) 13 to enter the effective display area 14. As shown in fig. 1, Data line signal lines coming from the driving boards (X-boards) 121 and 122 are routed through the WOA, and then each Data line signal line is passed through a via, converted into Data lines D1, D2, D3, … and D3840, and finally input into the AA area. Similarly, as shown in FIG. 1, the Gate line signal lines G1, G2, G3, …, G2159, and G2160 are also inputted to the active display area 14.
When the display abnormality occurs on the panel, the panel needs to be analyzed by various means to find out the cause of the abnormality, but as the size of the panel increases, it is difficult to quickly find out the source of the problem. In order to quickly find out reasons and judge whether a GOA circuit has problems, the most intuitive means is to observe the waveform of each level of Gate line; meanwhile, how to judge whether a problem occurs in a Data line signal line of a certain level is the most intuitive method, the Data line waveform is detected for comparison and then the judgment is carried out, and the conventional panel signal line routing is not beneficial to the design of the aspect of analysis.
In order to solve the problems existing in the prior art, a new wiring design is necessary, so that the Gate line waveform can be detected according to requirements, the Data line waveform can also be detected, and the abnormal reason can be conveniently and rapidly found out when the panel is abnormal.
Disclosure of Invention
Based on the above, an object of the present invention is to provide a display panel and a detection method thereof, where the display panel has a novel Data line routing design scheme, and on the basis of the original Data line signal line routing, by performing a suitable routing design on a Data line signal, a Gate line waveform and a Data line waveform of a required number of levels can be detected as required, so that the circuit is favorable for analysis.
In order to achieve the above object, the present invention provides a display panel including; a control panel; the first driving plate is electrically connected with the control plate; a plurality of first connection lines electrically connected to the first driving board; a plurality of horizontal scanning lines (gate lines) and a plurality of vertical data lines (data lines) are arranged in a staggered manner, wherein the data lines are connected with the first connecting lines on a first side of the display panel; a transverse test electrode, configured on a second side of the display panel and vertically crossed with the data line, wherein the first side is opposite to the second side; a first longitudinal test electrode disposed on a third side of the display panel and vertically crossing the scan line, wherein the transverse test electrode is electrically connected to the first longitudinal test electrode; and a first floating electrode having a terminal electrically connected to the first driving board.
The invention also provides a panel detection method, which comprises the following steps:
s10 provides a display panel, comprising: a control panel; the first driving plate is electrically connected with the control plate; a plurality of first connection lines electrically connected to the first driving board; a plurality of horizontal scanning lines (gate lines) and a plurality of vertical data lines (data lines) are arranged in a staggered manner, wherein the data lines are connected with the first connecting lines on a first side of the display panel; a transverse test electrode arranged at the second side of the display panel and vertically crossed with the data line, wherein the first side is opposite to the second side; the first longitudinal test electrode is arranged on the third side of the display panel and vertically crossed with the scanning line; the first floating electrode is provided with a terminal electrically connected with the first driving plate;
s20a welding the other end of the first floating electrode and the first longitudinal test electrode by laser;
s25a welding the vertically interleaved lateral test electrodes and the first longitudinal test electrodes with a laser;
s30a, using laser to weld the vertically crossed transverse test electrodes and a data line to form a welding point; and
s40a collects the signals transmitted back to the control board to perform waveform test on the data line.
According to an embodiment of the invention, in the panel inspection method, the sequence of the steps S20a, S25a, and S30a can be arbitrarily adjusted.
The invention further provides a panel detection method, which comprises the following steps:
s10 provides a display panel, comprising: a control panel; the first driving plate is electrically connected with the control plate; a plurality of first connection lines electrically connected to the first driving board; a plurality of transverse scanning lines (gate lines) and a plurality of longitudinal data lines (data lines) are arranged in a staggered manner, wherein the data lines are connected with the first connecting lines on a first side of the display area; a transverse test electrode arranged at the second side of the display panel and vertically crossed with the data line, wherein the first side is opposite to the second side; the first longitudinal test electrode is arranged on the third side of the display panel and vertically crossed with the scanning line; the first floating electrode is provided with a terminal electrically connected with the first driving plate;
s20a welding the other end of the first floating electrode and the first longitudinal test electrode by laser;
s30b, welding the vertically crossed first longitudinal test electrodes and a scanning line by laser to form a welding point; and
s40b collects the signals transmitted back to the control board to perform waveform test on the scan lines.
According to an embodiment of the invention, in the panel detection method, the sequence of the steps S20a and S30b can be arbitrarily adjusted.
According to an embodiment of the present invention, the display panel further includes: the second driving plate is electrically connected with the control plate; a plurality of second connection lines electrically connected to the second driving board, wherein the plurality of second connection lines and the second driving board are disposed at a first side of the display panel; the second longitudinal test electrode is arranged on the fourth side of the display panel and vertically crossed with the scanning line, wherein the fourth side is opposite to the third side; and a second floating electrode having a terminal electrically connected to the second driving board.
According to an embodiment of the present invention, the plurality of first connecting lines, the first floating electrodes, the plurality of horizontal scan lines, and the horizontal test electrodes are located on a gate metal layer; and the plurality of longitudinal data lines and the first longitudinal test electrode are positioned on a source/drain metal layer, wherein the source/drain metal layer is positioned on the gate metal layer.
According to another embodiment of the present invention, the display panel further includes: and the first floating electrode pin is arranged on the control board and is connected with the first floating electrode.
According to another embodiment of the present invention, the display panel further includes: and the second floating electrode pin is arranged on the control board and is connected with the second floating electrode.
According to another embodiment of the present invention, the panel inspection method further comprises the following steps:
s20b welding the other end of the second floating electrode and the second longitudinal test electrode by laser;
s25b welding the vertically interleaved transverse test electrodes and the second longitudinal test electrodes with a laser;
s30c vertically crossing the transverse test electrode and another data line by laser welding, wherein the signal transmission between the another data line and the control board does not pass through the welding point in the step S30a or S30 b; and S40c collecting the signal transmitted back to the control board to perform waveform test on the data line.
According to an embodiment of the invention, in the panel inspection method, the sequence of the steps S20b, S25b, and S30c can be arbitrarily adjusted.
According to another embodiment of the present invention, the panel inspection method further comprises the following steps;
s20b welding the other end of the second floating electrode and the second longitudinal test electrode by laser;
s30d welding the vertically-staggered second longitudinal test electrode and another scan line by laser, wherein the signal transmission between the another scan line and the control board does not pass through the welding point in the step S30a or S30 b; and
s40d collects the signals transmitted back to the control board to perform waveform test on the scan lines.
According to an embodiment of the invention, in the panel detection method, the sequence of the steps S20b and S30d can be arbitrarily adjusted.
According to the display panel and the detection method thereof, by adopting the novel Data line wiring design scheme, not only can the Gate line waveform be detected according to the requirement, but also the Data line waveform can be detected, and the abnormal reason can be conveniently and rapidly found out when the panel is abnormal.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of conventional GOA electrode routing with resolution UD (3840x 2160).
Fig. 2 is a schematic diagram of electrode traces of a display panel according to an embodiment of the invention.
FIG. 3 is a schematic side view of electrode traces of a display panel according to an embodiment of the invention.
FIG. 4 is a schematic diagram of electrode traces and signal lines during testing of a display panel according to an embodiment of the invention.
FIG. 5 is a schematic diagram of electrode traces and signal lines in another embodiment of a display panel according to the invention.
FIG. 6 is a flowchart illustrating a panel inspection method according to an embodiment of the present invention.
FIG. 7 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention.
FIG. 8 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention.
FIG. 9 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention.
Detailed Description
In order to make the aforementioned and other objects of the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. Directional terms mentioned in the present invention, such as [ longitudinal ], [ lateral ], [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer to the directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
The invention provides a display panel and a detection mode thereof, wherein the display panel has a novel Data line routing design scheme, and the Data line waveform of required levels can be detected according to requirements by carrying out proper routing design on Data line signals on the basis of the original Data line signal routing, so that the circuit is beneficial to analysis.
Fig. 2 is a schematic diagram of electrode traces of a display panel according to an embodiment of the invention. Specifically, as shown in fig. 2, the present invention provides a display panel 2, which includes a control board 21; a first driving board 221 electrically connected to the control board 21; a plurality of first connection lines 231 electrically connected to the first driving board 221; a plurality of transverse scan lines (Gate lines) G1, G2, G3, …, Gn-1, Gn and a plurality of longitudinal Data lines (Data lines) D1, D2, D3, …, Dn-1, Dn pass through a display area 24 and are arranged in a staggered manner in the display area 24, wherein the Data lines D1, D2, D3, …, Dn-1, Dn are connected with the first connecting line 231 on a first side of the display area 24; a transverse test electrode 25 disposed on a second side of the display area 24 and vertically crossing the data lines D1, D2, D3, …, Dn-1, wherein the first side is opposite to the second side; a first vertical test electrode 261 disposed at a third side of the display region 24 and vertically crossing the scan lines G1, G2, G3, …, Gn-1, Gn, wherein the horizontal test electrode 25 and the first vertical test electrode 261 are electrically connected; and a first floating electrode 271 having a terminal electrically connected to the first driving board 221.
As shown in fig. 2, the display panel of the present invention may further include: a second driving board 222 electrically connected to the control board 21; a plurality of second connection lines 232 electrically connected to the second driving board 222, wherein the plurality of second connection lines 232 and the second driving board 222 are disposed on a first side of the display area 24; a second vertical test electrode 262 disposed on a fourth side of the display region 24 and vertically crossing the scan lines G1, G2, G3, …, Gn-1, Gn, wherein the fourth side is opposite to the third side; and a second floating electrode 272 having a terminal electrically connected to the second driving board 222.
Further, the display panel may further include a first floating electrode pin (not shown) disposed on the control board 21 and connected to the first floating electrode 271. Furthermore, the display panel may further include a second floating electrode pin (not shown) disposed on the control board 21 and connected to the second floating electrode.
FIG. 3 is a schematic side view of electrode traces of a display panel according to an embodiment of the invention. Specifically, as shown in fig. 3, in the display panel 2 of the present invention, the plurality of first connection lines 231, the first floating electrodes 271, the plurality of horizontal scan lines G1, G2, G3, …, Gn-1, Gn, and the horizontal test electrodes 25 are located on a gate metal layer M1; and the plurality of vertical data lines D1, D2, D3, …, Dn-1, Dn and the first vertical test electrode 261 are located on a source/drain metal layer M2, wherein the source/drain metal layer M2 is located on the gate metal layer M1.
FIG. 4 is a schematic diagram of electrode traces and signal lines for performing a test on a display panel according to an embodiment of the invention; FIG. 6 is a flowchart illustrating a panel inspection method according to an embodiment of the present invention. Referring to fig. 4 and 6 together, as shown in fig. 4 and 6, an embodiment of the invention provides a panel detection method, including the following steps:
s10 provides a display panel 2 including; a control board 21; a first driving board 221 electrically connected to the control board 11; a plurality of first connection lines 231 electrically connected to the first driving board 221; a plurality of transverse scan lines (Gate lines) G1, G2, G3, …, Gn-1, Gn and a plurality of longitudinal Data lines (Data lines) D1, D2, D3, …, Dn-1, Dn pass through a display area 24 and are arranged in a staggered manner in the display area 24, wherein the Data lines D1, D2, D3, …, Dn-1, Dn are connected with the first connecting line 231 on a first side of the display area 24; a transverse test electrode 25 disposed on a second side of the display area 24 and vertically crossing the data lines D1, D2, D3, …, Dn-1, wherein the first side is opposite to the second side; a first vertical test electrode 261 disposed at a third side of the display region 24 and vertically crossing the scan lines G1, G2, G3, …, Gn-1, Gn, wherein the horizontal test electrode 25 and the first vertical test electrode 261 are electrically connected; and a first floating electrode 271 having a terminal electrically connected to the first driving board 221.
S20a welding the other end of the first floating electrode 271 and the first longitudinal test electrode 261 by laser to form a welding point P1;
s25a, using laser to weld the vertically crossed transverse testing electrode 25 and the first longitudinal testing electrode 261 to form a welding point P3;
s30a forming a welding point P4 by laser welding the vertically crossed lateral test electrodes 25 and a data line D3; and
s40a collects the signals transmitted back to the control board 21 for performing waveform testing on the data lines (not labeled).
According to the above embodiment, in the panel inspection method, the sequence of steps S20a, S25a, and S30a can be arbitrarily adjusted.
According to the present embodiment, fig. 4 and fig. 6 specifically describe a method for quickly determining whether a problem occurs in a GOA circuit, so that the circuit is easy to analyze.
Although the Data lines of a specific number of stages are selected for waveform testing in the present embodiment, those skilled in the art can select Data lines or Gate lines of other number of stages for waveform testing according to the panel testing method of the present invention.
According to an embodiment of the present invention, after performing the Data line waveform test of a specific number of levels, the laser-welded lateral test electrode and the Data line can be further laser-fused, and the other Data line or Gate line waveform test can be continuously performed column by column, wherein the signal routing of the welding point of the other selected Data line or Gate line and the test electrode is required to be located between the previous laser fusing point and the control board, and does not pass through the previous laser fusing point.
FIG. 5 is a schematic diagram of electrode traces and signal lines for testing a display panel according to another embodiment of the present invention; FIG. 7 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention. Referring to fig. 5 and 7 together, as shown in fig. 5 and 7, another embodiment of the present invention provides a panel detection method, including the following steps:
s10 provides a display panel 2, which is configured as the foregoing embodiments in detail and will not be described herein;
s20a welding the other end of the first floating electrode 271 and the first longitudinal test electrode 261 by laser to form a welding point P1;
s30b, using laser to weld the vertically crossed first longitudinal test electrodes 261 and a scanning line G3 to form a welding point P2; and
s40b collects the signals transmitted back to the control board 21 to perform waveform testing on the scan line G3.
According to this embodiment, in the panel detection method, the sequence of steps S20a and S30b can be arbitrarily adjusted. According to the present embodiment, fig. 5 and 7 specifically describe a method for rapidly determining whether a GOA circuit has a problem, so that the circuit is easy to analyze, and the method can directly observe the waveform of the Gate line requiring the number of stages, and further determine whether a signal line of a certain stage of a scan line (Gate line) has a problem.
Although a specific number of stages of Gate lines are selected for waveform testing in the present embodiment, those skilled in the art can select other stages of Gate lines for waveform testing according to the panel testing method of the present invention.
According to an embodiment of the present invention, after performing the Gate line waveform test of a specific number of stages, the laser-welded lateral test electrode and data line can be further laser-fused, and the other Gate line waveform tests can be continuously performed row by row, wherein the signal routing of the welding point of the other selected Gate line and the test electrode is required to be located between the previous laser fusing point and the control board, and does not pass through the previous laser fusing point.
FIG. 8 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention. Referring to fig. 4 and 8 together, as shown in fig. 4 and 8, another embodiment of the present invention provides a panel detection method, further comprising the following steps:
s20b welding the other end of the second floating electrode 272 and the second longitudinal test electrode 262 by laser to form a welding point P5;
s25b, using laser to weld the vertically crossed transverse test electrodes 25 and the second longitudinal test electrodes 262 to form a welding point P6;
s30c vertically crossing the transverse test electrodes 25 and another data line (not numbered) by laser welding, wherein the signal transmission between the another data line (not numbered) and the control board 21 does not pass through the welding point P4 or P2 in step S30a or S30 b; and
s40c collects the signals transmitted back to the control board for performing waveform testing on the data lines (not labeled).
According to this embodiment, in the panel inspection method, the sequence of steps S20b, S25b, and S30c can be arbitrarily adjusted.
As in the foregoing embodiments, although the Data lines of a specific number of stages are selected for waveform testing in the present embodiment, those skilled in the art can select Data lines or Gate lines of other number of stages for waveform testing according to the panel testing method of the present invention. Similarly, after performing the Data line waveform test of a specific level, the laser-welded lateral test electrode and Data line can be further laser-fused, and the other Data line or Gate line waveform tests can be continuously performed column by column, wherein the signal routing of the welding point of the other selected Data line or Gate line and the test electrode needs to be positioned between the previous laser fusing point and the control board, but does not pass through the previous laser fusing point.
FIG. 9 is a flowchart illustrating a panel inspection method according to another embodiment of the present invention. Referring to fig. 5 and 9 together, as shown in fig. 5 and 9, a further embodiment of the present invention provides a panel detection method, further comprising the following steps:
s20b welding the other end of the second floating electrode 272 and the second longitudinal test electrode 262 by laser to form a welding point P5;
s30d laser-welding the vertically-staggered second vertical test electrodes 262 and another scan line (not shown), wherein the signal transmission between the another scan line (not shown) and the control board does not pass through the welding point P4 or P2 in steps S30a or S30 b; and
s40d collects the signals transmitted back to the control board 21 for performing waveform testing on the scan lines (not shown).
According to an embodiment of the invention, in the panel detection method, the sequence of the steps S20b and S30d can be arbitrarily adjusted.
Although the present embodiment selects a specific number of stages of Gate lines for waveform testing, those skilled in the art can select other stages of Gate lines for waveform testing according to the panel testing method of the present invention. Similarly, after the Gate line waveform test of a specific stage number is performed, the laser-welded transverse test electrode and the data line can be further subjected to laser fusing, and other Gate line waveform tests are continuously performed row by row, wherein signal routing of the welding points of the other selected Gate lines and the test electrode is required to be positioned between the previous laser fusing point and the control board and does not pass through the previous laser fusing point.
Accordingly, the panel detection method provided by the embodiment of the invention can simultaneously perform one, two or more stages of Gate line and/or Data line waveform tests, and further can perform laser fusing on the laser-welded transverse test electrode and the Gate line and/or Data line after performing the specific stages of Gate line and/or Data line waveform tests, and continue to perform other Gate line and/or Data line waveform tests row by row, so that the circuit is beneficial to analysis.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (9)
1. A display panel includes;
a plurality of first connecting lines;
the plurality of transverse scanning lines and the plurality of longitudinal data lines are arranged in a staggered mode, wherein the data lines are connected with the first connecting lines on the first side of the display panel;
the first longitudinal test electrode is arranged on the third side of the display panel and vertically crossed with the scanning line;
a first floating electrode having a terminal electrically connected to a first driving board; and
and the transverse test electrode is arranged on the second side of the display panel and vertically staggered with the data line, wherein the first side is opposite to the second side, and the transverse test electrode is electrically connected with the first longitudinal test electrode.
2. The display panel of claim 1, further comprising:
the first driving board is electrically connected with the control board, and the first connecting lines are electrically connected with the first driving board.
3. The display panel of claim 2, further comprising:
the second driving plate is electrically connected with the control plate;
a plurality of second connection lines, wherein the plurality of second connection lines are electrically connected to the second driving board, and the plurality of second connection lines and the second driving board are disposed at a first side of the display panel;
a second vertical test electrode disposed on a fourth side of the display panel and vertically crossing the scan line, wherein the fourth side is opposite to the third side; and
and the second floating electrode is provided with a terminal electrically connected with the second driving plate.
4. The display panel of claim 1, wherein
The plurality of first connecting lines, the first floating electrodes, the plurality of transverse scanning lines and the transverse testing electrodes are positioned on a gate metal layer; and
the plurality of longitudinal data lines and the first longitudinal test electrode are positioned on a source/drain metal layer, wherein the source/drain metal layer is positioned on the gate metal layer.
5. The display panel of claim 2, further comprising:
and the first floating electrode pin is arranged on the control board and is connected with the first floating electrode.
6. The display panel of claim 3, further comprising:
and the second floating electrode pin is arranged on the control board and is connected with the second floating electrode.
7. A panel detection method comprises the following steps of;
s10 provides a display panel, comprising:
a plurality of first connecting lines;
a plurality of horizontal scanning lines (gate lines) and a plurality of vertical data lines (data lines) are arranged in a staggered manner, wherein the data lines are connected with the first connecting lines on a first side of the display panel;
the first longitudinal test electrode is arranged on the third side of the display panel and vertically crossed with the scanning line;
a first floating electrode having a terminal electrically connected to a first driving board; and
the first driving board is electrically connected with the control board, and the plurality of first connecting lines are electrically connected with the first driving board;
s20a welding the other end of the first floating electrode and the first longitudinal test electrode by laser;
s30b, welding the vertically crossed first longitudinal test electrodes and a scanning line by laser to form a welding point; and
s40b collects the signals transmitted back to the control board to perform waveform test on the scan lines.
8. A panel detection method comprises the following steps of;
s10 provides a display panel, comprising:
a plurality of first connecting lines;
a plurality of horizontal scanning lines (gate lines) and a plurality of vertical data lines (data lines) are arranged in a staggered manner, wherein the data lines are connected with the first connecting lines on a first side of the display panel;
a transverse test electrode arranged at the second side of the display panel and vertically crossed with the data line, wherein the first side is opposite to the second side;
the first longitudinal test electrode is arranged on the third side of the display panel and vertically crossed with the scanning line;
a first floating electrode having a terminal electrically connected to a first driving board; and
the first driving board is electrically connected with the control board, and the plurality of first connecting lines are electrically connected with the first driving board;
s20a welding the other end of the first floating electrode and the first longitudinal test electrode by laser;
s25a welding the vertically interleaved lateral test electrodes and the first longitudinal test electrodes with a laser;
s30a, using laser to weld the vertically crossed transverse test electrodes and a data line to form a welding point; and
s40a collects the signals transmitted back to the control board to perform waveform test on the data lines.
9. The panel detecting method according to claim 8, wherein the display panel further comprises:
the second driving plate is electrically connected with the control plate;
a plurality of second connection lines, wherein the plurality of first connection lines are electrically connected to the first driving board, the plurality of second connection lines are electrically connected to the second driving board, and the plurality of first connection lines and the plurality of second connection lines are connected to the data lines at a first side of the display panel;
a second vertical test electrode disposed on a fourth side of the display panel and vertically crossing the scan line, wherein the third side is opposite to the fourth side; and
the second floating electrode is provided with a terminal electrically connected with the second driving plate;
the panel detection method further comprises;
s20b welding the other end of the second floating electrode and the second longitudinal test electrode by laser;
s25b welding the vertically interleaved transverse test electrodes and the second longitudinal test electrodes with a laser;
s30c vertically crossing the transverse test electrode and another data line by laser welding, wherein the signal transmission between the another data line and the control board does not pass through the welding point in the step S30a or S30 b; and
s40c collects the signals transmitted back to the control board to perform waveform test on the data line.
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| CN201910458464.XA CN110187531B (en) | 2019-05-29 | 2019-05-29 | Display panel and detection method thereof |
| PCT/CN2019/103784 WO2020237888A1 (en) | 2019-05-29 | 2019-08-30 | Display panel and detection method therefor |
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| CN201910458464.XA CN110187531B (en) | 2019-05-29 | 2019-05-29 | Display panel and detection method thereof |
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| CN113311606B (en) * | 2021-05-26 | 2023-06-20 | 合肥京东方光电科技有限公司 | Substrate for display device and display device thereof |
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| CN110187531A (en) | 2019-08-30 |
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