CN105652539B - Liquid crystal display device and its liquid crystal display panel - Google Patents
Liquid crystal display device and its liquid crystal display panel Download PDFInfo
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- CN105652539B CN105652539B CN201610147976.0A CN201610147976A CN105652539B CN 105652539 B CN105652539 B CN 105652539B CN 201610147976 A CN201610147976 A CN 201610147976A CN 105652539 B CN105652539 B CN 105652539B
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- liquid crystal
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of liquid crystal display device and its liquid crystal display panels.The liquid crystal display panel includes: substrate；Multiple first terminals；A plurality of signal wire；Multiple test switches；At least one p-wire；Control line；Second terminal is connect with control line；When liquid crystal display panel is closed, Second terminal receives second control signal, opens for controlling multiple test switches according to second control signal, multiple signal wires are shorted.By the above-mentioned means, the present invention can eliminate ghost caused by liquid crystal display panel shutdown.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of liquid crystal display device and its LCD display
Plate.
Background technique
Liquid crystal display device has been widely used in a variety of electronic products, and liquid crystal display panel is liquid crystal display device
Important composition component.Liquid crystal display panel manufacturer is after liquid crystal display panel is made, it usually needs to LCD display
Plate is tested, and reduces the waste of processing procedure to find the problem product as early as possible.
Currently, p-wire usually is arranged in the array substrate of liquid crystal display panel in the detection of liquid crystal display panel
(Shorting Bar) connects the signal wire of liquid crystal display panel.By p-wire input test signal to signal wire, with inspection
It surveys signal wire and utilizes the company of laser cutting p-wire and signal wire after test completion with the presence or absence of open circuit or other defect
It connects.
Since the measurement circuit by above-mentioned liquid crystal display panel is after detecting liquid crystal display panel, benefit is needed further exist for
Cut off p-wire with laser, and then increase the processing procedure of one of laser cutting, and be unfavorable for liquid crystal display panel production capacity and
Yield.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of liquid crystal display device and its liquid crystal display panels, to solve
The above problem.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of liquid crystal display panel is provided,
Include:
Substrate；
Multiple first terminals, are disposed on the substrate；
A plurality of signal wire, signal wire are connected with one end of corresponding first terminal；
Multiple test switches, the other end of first terminal are connected with the first end of corresponding test switch；
At least one p-wire is connect with the second end of test switch, for providing test signal to a plurality of signal wire；
Control line is connect with the control terminal of multiple test switches, for being opened according to the multiple tests of first control signal control
Pass is turned on or off；
Second terminal is connect with control line；
When liquid crystal display panel is closed, Second terminal receives second control signal, for according to second control signal
It controls multiple test switches to open, multiple signal wires are shorted.
Wherein, when liquid crystal display panel is tested, the multiple test switches of control line traffic control are opened, and Second terminal is outstanding
It is empty.
Wherein, when liquid crystal display panel works normally, Second terminal receives low level, for dragging down the electricity of control line
Flat, the multiple test switches of control line traffic control are closed.
Wherein, liquid crystal display panel is connect by Second terminal with driving assembly, and driving assembly for Second terminal for mentioning
For second control signal.
Wherein, test switch is thin film transistor (TFT).
Wherein, the other end of the drain electrode of thin film transistor (TFT) and first terminal connects, the grid and control line of thin film transistor (TFT)
Connection, the source electrode of thin film transistor (TFT) are connect with p-wire.
Wherein, liquid crystal display panel includes red sub-pixel, green sub-pixels and blue subpixels.
Wherein, at least one p-wire is three p-wires, and three p-wires for testing red sub-pixel, green respectively
Sub-pixel and blue subpixels.
Wherein, three p-wires include the first p-wire, the second p-wire and third p-wire, with red sub-pixel
The second end of the corresponding multiple test switches of signal wire is connect with the first p-wire, corresponding with the signal wire of green sub-pixels more
The second end of a test switch connect with the second p-wire, corresponding with the signal wire of blue subpixels multiple to test the switched
Two ends are connect with third p-wire.
In order to solve the above technical problems, another technical solution used in the present invention is: a kind of liquid crystal display device is provided,
It includes above-mentioned liquid crystal display panel.
The beneficial effects of the present invention are: being in contrast to the prior art, multiple first ends are arranged in the present invention on substrate
Sub, a plurality of signal wire, multiple tests switch, at least one p-wire, control line and Second terminal are closed in liquid crystal display panel
When closing, Second terminal receives second control signal, opens for controlling multiple test switches according to second control signal, multiple
Signal wire is shorted, and then can eliminate ghost caused by liquid crystal display panel shutdown；In addition, in the normal work of liquid crystal display panel
When making, the multiple test switches of control line traffic control are closed, and it is low level that Second terminal, which receives second control signal, for dragging down control
The level of line processed, multiple test switches close, are not required to cut off p-wire by laser, when shortening the processing procedure of liquid crystal display panel
Between, the production capacity of liquid crystal display panel is improved, and avoid the signal interference between signal wire.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it may further obtain according to these attached drawings
Other attached drawings.Wherein:
Fig. 1 is the structural schematic diagram of first embodiment of the invention liquid crystal display panel；
Fig. 2 is the structural schematic diagram of second embodiment of the invention liquid crystal display panel；
Fig. 3 is the structural schematic diagram of first embodiment of the invention liquid crystal display device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall within the protection scope of the present invention.
Referring to Figure 1, Fig. 1 is the structural schematic diagram of first embodiment of the invention liquid crystal display panel.As shown in Figure 1, this
The revealed liquid crystal display panel 10 of embodiment is opened including substrate 11, multiple first terminals 12, a plurality of signal wire 13, multiple tests
Close 14, at least one p-wire 15, Second terminal 16 and control line 17.
Wherein, substrate 11 can be using glass substrate or flexible plastic base.Multiple first are arranged on the substrate 11
Terminal 12, a plurality of signal wire 13, multiple test switches 14, at least one p-wire 15, Second terminal 16 and control line 17.
A plurality of signal wire 13 includes data line and scan line, wherein every signal line 13 and the one of corresponding first terminal 12
End connection, so that every signal line 13 receives the signal of input, such as sweeping in signal wire 13 by corresponding first terminal 12
It retouches line and passes through first terminal 12 from the data in scanning signal driving chip (not shown) reception scanning signal or signal wire 13
Line receives data-signal from data-signal driving chip (not shown) by first terminal 12.
The other end of first terminal 12 is connected with the first end 141 of corresponding test switch 14, and the second of test switch 14
End 142 is connect at least one p-wire 15, and p-wire 15 is used to provide test signal to a plurality of signal wire 13.
Control line 17 is connect with the control terminal 143 of multiple test switches 14, receives first control signal in control line 17
When, control line 17 is used to control multiple test switches 14 according to first control signal and be turned on or off.
Wherein, at least one p-wire 15 is connect by multiple test switches 14 with a plurality of signal wire 13；In multiple tests
When switch 14 is opened, at least one p-wire 15 and a plurality of signal wire 13 are connected；When multiple test switches 14 are closed, at least one
P-wire 15 and a plurality of signal wire 13 disconnect.
Preferably, the quantity of a plurality of signal wire 13, multiple first terminals 12 and multiple test switches 14 is equal, and
It is arranged in a one-to-one correspondence.
Second terminal 16 is connect with control line 17, and Second terminal 16 and multiple first terminals 12 form terminal region.
When liquid crystal display panel 10 is tested, Second terminal 16 is hanging, and control line 17 is according to first control signal control
Multiple test switches 14 to be made to open, at least one p-wire 15 is connect by multiple test switches 14 with a plurality of signal wire 13, until
A few p-wire 15 is used to provide test signal to a plurality of signal wire 13.
When liquid crystal display panel 10 works normally, the second control signal that Second terminal 16 receives is low level, is used
In the level for dragging down control line 17 so that control line 17 controls multiple test switches 14 and closes, and then a plurality of signal wire 13 with extremely
A few p-wire 15 disconnects, and can be avoided the signal interference between a plurality of signal wire 13, that is, avoid scan line and data line it
Between signal interference.
When liquid crystal display panel 10 is closed, it is high level that Second terminal 16, which receives second control signal, for drawing high
The level of control line 17, so that control line 17 controls multiple test switches 14 and opens, i.e., Second terminal 16 is used for according to the second control
Signal processed controls multiple test switches and opens.And then multiple signal wires 13 are realized by least one p-wire 15 and are shorted, in turn
Liquid crystal display panel 10 can be eliminated to shut down generated ghost.
Preferably, liquid crystal display panel 10 is connect by Second terminal 16 with driving assembly 18, driving assembly 18 for
Second terminal 16 inputs second control signal, and second control signal includes high level and low level.Such as driving assembly 18 is to sweep
Signal driving chip is retouched, scanning signal driving chip is used to provide second control signal for Second terminal 16；Or driving assembly
18 be data-signal driving chip, and data-signal driving chip is used to provide second control signal for Second terminal 16.
For the present embodiment when liquid crystal display panel 10 is closed, Second terminal 16 receives second control signal, is used for basis
Second control signal controls multiple test switches 14 and opens, and multiple signal wires 13 are shorted, and then can eliminate liquid crystal display panel
Ghost caused by 10 shutdown；In addition, control line 17 controls multiple test switches 14 when liquid crystal display panel 10 works normally
It closes, it is low level that Second terminal 16, which receives second control signal, for dragging down the level of control line 17, multiple test switches
14 close, and a plurality of signal wire 13 and at least one p-wire 15 disconnect, and are not required to cut off p-wire by laser, shorten liquid crystal
Show the processing time of panel 10, improve the production capacity of liquid crystal display panel 10, and avoids the signal interference between signal wire 13.
The present invention also provides the liquid crystal display panels of second embodiment, in the revealed LCD display of first embodiment
It is described on the basis of plate 10.As shown in Fig. 2, the revealed liquid crystal display panel of the present embodiment include red sub-pixel (not
Display), green sub-pixels (not shown) and blue subpixels (not shown), at least one p-wire 15 is preferably three tests
Line, three p-wires for testing red sub-pixel, green sub-pixels and blue subpixels respectively.
Specifically, three p-wires include the first p-wire R, the second p-wire G and third p-wire B, with red
The second end 142 of the corresponding multiple test switches 14 of the signal wire 13 of sub-pixel is connect with the first p-wire R；With green sub-pixels
Signal wire 13 it is corresponding it is multiple test switches 14 second ends 142 connect with the second p-wire G；With the signal of blue subpixels
The second end 142 of the corresponding multiple test switches 14 of line 13 is connect with third p-wire B.
Testing switch 14 is preferably thin film transistor (TFT) T, and wherein the drain electrode of thin film transistor (TFT) T is to test the first end of switch 14
The source electrode of 141, thin film transistor (TFT) T are the second end 142 for testing switch 14, and the grid of thin film transistor (TFT) T is test switch 14
Control terminal 143.The drain electrode of thin film transistor (TFT) T is connect with the other end of first terminal 12, and the source electrode of thin film transistor (TFT) T and first is surveyed
Examination line R, the second p-wire G or the B connection of third p-wire, the grid of thin film transistor (TFT) T are connect with control line 17.
Test point is provided in one end of the first p-wire R, the second p-wire G, third p-wire B and control line 17
Test pad, tester pass through in test point Test pad input test signal and first control signal.
When tester tests liquid crystal display panel, tester believes in test point Test pad input test
Number and first control signal, Second terminal 16 it is hanging, i.e., Second terminal 16 is inputted without signal, the signal of the input of Second terminal 16
It is zero.The first control signal that control line 17 receives is high level, and then controls multiple thin film transistor (TFT) T and all turn on, i.e.,
Control line 17 controls multiple test switches 14 according to first control signal and opens.First p-wire R, the second p-wire G and
Three p-wire B are connect by thin film transistor (TFT) T with a plurality of signal wire 13, and the first p-wire R, the second p-wire G and third are surveyed
It tries line B to be used to provide test signal to a plurality of signal wire 13, wherein the signal wire 13 of red sub-pixel passes through thin film transistor (TFT) T
Test signal is obtained from the first p-wire R；The signal wire 13 of green sub-pixels is obtained by thin film transistor (TFT) T from the second p-wire G
Take test signal；The signal wire 13 of blue subpixels obtains test signal from third p-wire B by thin film transistor (TFT) T.
It is worked normally in liquid crystal display panel, i.e., when liquid crystal display panel is normally shown, test point Test pad stops defeated
Enter to test signal；Driving assembly 18 inputs second control signal to Second terminal 16, and second control signal is low level, for drawing
The level of lower control limit 17, so that thin film transistor (TFT) T is disconnected, i.e., the signal wire 13 of red sub-pixel and the first p-wire R disconnect
Connection；The signal wire 13 of green sub-pixels and the second p-wire G are disconnected；The signal wire 13 and third of blue subpixels are tested
Line B is disconnected.I.e. a plurality of signal wire 13 and at least one p-wire 15 disconnect, and can be avoided the letter between a plurality of signal wire 13
Number interference, that is, avoid the signal interference between scan line and data line.
When liquid crystal display panel 10 is closed, test point Test pad stops input test signal；Driving assembly 18 is to
Two-terminal 16 inputs second control signal, and second control signal is high level, for drawing high the level of control line 17, so that film
Transistor T conducting.The signal wire 13 of red sub-pixel is shorted by the first p-wire R；The signal wire 13 of green sub-pixels passes through
Second p-wire G is shorted；The signal wire 13 of blue subpixels is shorted by third p-wire B, i.e., multiple signal wires 13 are by extremely
A few p-wire 15, which is realized, to be shorted, and then can be eliminated liquid crystal display panel 10 and be shut down generated ghost.
In the present embodiment, it is multiple test switches 14 thin film transistor (TFT) T and liquid crystal display panel active member (such as
Thin film transistor (TFT)) it can be formed simultaneously on substrate 11；Multiple first terminals 12 of Second terminal 16 and liquid crystal display panel can
To be formed simultaneously on substrate 11, control line 17 and at least one p-wire 15 can be formed simultaneously on substrate 11, to reduce
Processing procedure, therefore can not need to increase additional fabrication steps to form multiple test switches 14, Second terminal 16 and control
Line 17.
The present invention also provides a kind of liquid crystal display devices, as shown in figure 3, the revealed liquid crystal display device packet of the present embodiment
Backlight module 31 and liquid crystal display panel 32 are included, the light-emitting surface of backlight module 31, backlight module is arranged in liquid crystal display panel 32
31 for providing light source for liquid crystal display panel 32, and wherein liquid crystal display panel 32 is liquid crystal display described in above-described embodiment
Panel, details are not described herein.
In conclusion the present invention be arranged on substrate multiple first terminals, a plurality of signal wire, multiple tests switch, at least
One p-wire, control line and Second terminal, when liquid crystal display panel is closed, Second terminal receives the second control letter
Number, it is opened for controlling multiple test switches according to second control signal, multiple signal wires are shorted, and then can eliminate liquid crystal
Show ghost caused by panel shutdown；In addition, the multiple test switches of control line traffic control close when liquid crystal display panel works normally
It closes, it is low level that Second terminal, which receives second control signal, and for dragging down the level of control line, multiple test switches are closed,
It is not required to cut off p-wire by laser, shortens the processing time of liquid crystal display panel, improve the production capacity of liquid crystal display panel, and
And avoid signal interference between signal wire.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of liquid crystal display panel, which is characterized in that the liquid crystal display panel includes:
Substrate；
Multiple first terminals, setting is on the substrate；
A plurality of signal wire, the signal wire are connected with one end of the corresponding first terminal；
Multiple test switches, the other end of the first terminal are connected with the first end of the corresponding test switch；
At least one p-wire is connect with the second end of the test switch, for providing test letter to a plurality of signal wire
Number；
Control line is connect, for controlling the multiple survey according to first control signal with the control terminal of the multiple test switch
Runin pass is turned on or off；
Second terminal is connect with the control line；
When the liquid crystal display panel works normally, the Second terminal receives low level, for dragging down the control line
Level, the multiple test switch of the control line traffic control closes；
When the liquid crystal display panel is closed, the Second terminal receives second control signal, for according to described second
It controls signal and controls the multiple test switch unlatching, the multiple signal wire is shorted.
2. liquid crystal display panel according to claim 1, which is characterized in that tested in the liquid crystal display panel
When, the multiple test switch of control line traffic control is opened, and the Second terminal is hanging.
3. liquid crystal display panel according to claim 1, which is characterized in that worked normally in the liquid crystal display panel
When, the Second terminal receives low level, for dragging down the level of the control line, the multiple survey of the control line traffic control
Runin is closed.
4. liquid crystal display panel according to claim 3, which is characterized in that the liquid crystal display panel passes through described second
Terminal is connect with driving assembly, and the driving component is used to provide the second control signal for the Second terminal.
5. liquid crystal display panel according to claim 1, which is characterized in that the test switch is thin film transistor (TFT).
6. liquid crystal display panel according to claim 5, which is characterized in that the drain electrode of the thin film transistor (TFT) and described the
The other end of one terminal connects, and the grid of the thin film transistor (TFT) is connect with the control line, the source electrode of the thin film transistor (TFT)
It is connect with the p-wire.
7. liquid crystal display panel according to claim 1, which is characterized in that the liquid crystal display panel includes red sub- picture
Element, green sub-pixels and blue subpixels.
8. liquid crystal display panel according to claim 7, which is characterized in that at least one p-wire is three tests
Line, three p-wires for testing the red sub-pixel, green sub-pixels and blue subpixels respectively.
9. liquid crystal display panel according to claim 8, which is characterized in that three p-wires include the first test
Line, the second p-wire and third p-wire, the multiple test switch corresponding with the signal wire of the red sub-pixel
Second end is connect with first p-wire, and the of the multiple test switch corresponding with the signal wire of the green sub-pixels
Two ends are connect with second p-wire, and the second of the multiple test switch corresponding with the signal wire of the blue subpixels
End is connect with the third p-wire.
10. a kind of liquid crystal display device, which is characterized in that the liquid crystal display device includes such as claim 1-9 any one
The liquid crystal display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610147976.0A CN105652539B (en) | 2016-03-15 | 2016-03-15 | Liquid crystal display device and its liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610147976.0A CN105652539B (en) | 2016-03-15 | 2016-03-15 | Liquid crystal display device and its liquid crystal display panel |
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| CN105652539B true CN105652539B (en) | 2019-01-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281118A (en) * | 2018-01-09 | 2018-07-13 | 昆山龙腾光电有限公司 | Display panel and liquid crystal display device |
| CN109188812B (en) * | 2018-10-09 | 2021-03-30 | 京东方科技集团股份有限公司 | Array substrate, testing method thereof, display panel and display device |
| CN109754736B (en) * | 2019-03-14 | 2022-10-25 | 惠科股份有限公司 | Detection circuit and display substrate |
| US11417253B2 (en) * | 2019-11-08 | 2022-08-16 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Array substrate and display device |
| CN111508369B (en) * | 2020-05-19 | 2022-07-15 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN114639711A (en) * | 2022-03-28 | 2022-06-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel, display panel testing method and display device |
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| CN105652539A (en) | 2016-06-08 |
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