CN104991391B - The restorative procedure of display panel - Google Patents
The restorative procedure of display panel Download PDFInfo
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- CN104991391B CN104991391B CN201510459743.XA CN201510459743A CN104991391B CN 104991391 B CN104991391 B CN 104991391B CN 201510459743 A CN201510459743 A CN 201510459743A CN 104991391 B CN104991391 B CN 104991391B
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- display panel
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- faces
- terminal region
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of restorative procedure of display panel, utilize the telltale mark in the terminal region of display panel to be repaired, coordinate system is established when being repaired using the telltale mark as origin first, and the accurate coordinate of defect point is determined in the coordinate system, if defect point may be repaired in CF faces, the laser transmitter projects laser repairing defect point is then controlled, completes the reparation to display panel；If the defect point can not be repaired in CF faces, it must be repaired in TFT faces, then disconnect the connection of probe and terminal region, by the display panel turn-over to be repaired, so that TFT is face-up, the telltale mark in terminal region is searched out again, the telltale mark is defined as origin, according to the coordinate system informations and the accurate coordinate of defect point preserved before, it is accurately positioned the position of the defect point, the laser transmitter projects laser repairing defect point is controlled, completes the reparation to display panel, improves product yield.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of restorative procedure of display panel.
Background technology
With the development of Display Technique, the plane such as liquid crystal display (Liquid Crystal Display, LCD) display dress
Put because having the advantages that high image quality, power saving, fuselage is thin and has a wide range of application, and be widely used in mobile phone, TV, individual number
The various consumption electronic products such as word assistant, digital camera, notebook computer, desktop computer, turn into the master in display device
Stream.
Liquid crystal display major part on existing market is backlight liquid crystal display, and it includes liquid crystal display panel and the back of the body
Optical mode group (backlight module).Usual liquid crystal display panel is by color membrane substrates (Color Filter, CF), film crystal
Pipe array base palte (Thin Film Transistor Array Substrate, TFT Array Substrate) and one match somebody with somebody
The liquid crystal layer (Liquid Crystal Layer) being placed between two substrates is formed, and its operation principle is by two plate bases
Apply driving voltage to control the rotation of the liquid crystal molecule of liquid crystal layer, the light of backlight module is reflected into generation picture.
TFT substrate is bonded with CF substrates after liquid crystal display panel is made in completion, and the liquid crystal display panel is being assembled into liquid crystal display dress
, it is necessary to detect whether liquid crystal display panel has bad defect before putting, it is necessary to be repaired to defect, to improve when defective
The yield of liquid crystal display panel.With the continuous improvement of the resolution ratio of liquid crystal display panel, there is the ratio of bad defect in panel
It is consequently increased, display panel supplier is generally using laser repairing (Laser Repair) technique to there is bad liquid crystal
Display panel is repaired, to ensure the yield of liquid crystal display panel and production efficiency.
As shown in figure 1, being provided with terminal region 11 on display panel 1, display panel prosthetic appliance is provided with probe 2, passes through
The terminal region 11 corresponding with display panel 1 of probe 2 is connected, and lights liquid crystal display panel, obtains the defects of to be repaired point
(Defect) position, laser repairing process is recycled to repair the position of respective point.During reparation, generally display
The original state of panel is all that CF is face-up, but defect point it sometimes appear that can not be repaired in CF faces side, it is necessary to after turn-over
The situation that TFT is repaired in face, in order to remain to be accurately positioned the position of defect point after turn-over, typically using double contact
(Contact) mode, i.e., corresponding two groups of probes 2 are set respectively with TFT faces in CF faces so that remained to after turn-over by lighting
Panel is accurately positioned the position of defect point.However, the mode of above-mentioned double contact is for the both sides of display panel 1 (CF faces and TFT
Face) probe 2 contact area the depth of parallelism require it is higher, as shown in Fig. 2 when occur it is not parallel when, the both sides of display panel 1
Discontinuity, easily produce slight crack 12.
The content of the invention
It is an object of the invention to provide a kind of restorative procedure of display panel, display surface can be fast and accurately oriented
The defects of plate point, and defect point is repaired, while two groups of probes need not be used to display when carrying out two-sided repairing
Panel carries out double contact, avoids producing slight crack on a display panel, lifts the yield of display panel.
To achieve the above object, the present invention provides a kind of restorative procedure of display panel, and it comprises the following steps：
Step 1, provide display panel and display panel a prosthetic device to be repaired；
The display panel prosthetic device includes：For placing the reparation base station of the display panel to be repaired, for producing
Give birth to and export the generating laser of laser, for one group of probe being connected with the display panel to be repaired, connect with the probe
Connect, for producing the signal generator of point modulating signal, the CCD figures of the defects of point position for detecting the display panel to be repaired
As sensor, for the memory of storage information, and with the generating laser, signal generator, ccd image sensor,
And the controller that memory is connected；
The display panel to be repaired includes panel area and transparent terminal region, and the display panel to be repaired has phase
To the CF faces and TFT faces of setting, there is defect point in the panel area of the display panel to be repaired, and the defect point is initial
Coordinate is, it is known that be provided with telltale mark in the terminal region, because the terminal region is made of clear material, from regardless of whether from TFT
Face or CF faces can find the telltale mark；
Step 2, the display panel to be repaired is positioned over CF on the reparation base station up, the controller control
Make the ccd image sensor and search out telltale mark in terminal region, the telltale mark is defined as origin, establishes and sits
Mark system, the information record of the coordinate system is in memory；
Step 3, the terminal region that the probe is connected to the display panel to be repaired, light the display surface to be repaired
Plate, according to the initial coordinate of the defect point, search out the position of the defect point, and the coordinate system established in the step 2
The middle accurate coordinate for determining the defect point, the memory store the accurate coordinate of the defect point automatically；
If step 4, the defect point can be repaired in CF faces, the controller controls laser transmitter projects
The laser repairing defect point, completes the reparation to display panel to be repaired；If the defect point can not be repaired in CF faces,
It must be repaired in TFT faces, then continue step 5；
Step 5, the connection for disconnecting probe and terminal region, by the display panel turn-over to be repaired so that TFT is face-up,
The controller controls the ccd image sensor to search out the telltale mark in terminal region again, and the telltale mark is determined
For origin, the accurate coordinate of the coordinate system informations preserved according to the step 2 and the step 4 preservation the defects of point is accurate
It is determined that the position of the position defect point, the controller control laser transmitter projects laser repairing defect point, complete to treat
Repair the reparation of display panel.
In the step 1, the generating laser includes several laser beam emitting heads for being used to launch laser.
In the step 1, the base station of repairing is provided with the positioner for being used for positioning the display panel to be repaired.
In the step 1, the defects of panel area of the display panel to be repaired point is bright line or bright spot.
The display panel to be repaired include the TFT substrate that is oppositely arranged with CF substrates and located at the TFT substrate with
Liquid crystal layer between CF substrates.
Control the signal generator generation to light signal by controller in the step 3 and light the display to be repaired
Panel.
In the step 4, the situation that the defect point can not be repaired in CF faces is blocked for defect point by black matrix"
Situation.
Beneficial effects of the present invention：The present invention provides a kind of restorative procedure of display panel, utilizes display panel to be repaired
Terminal region in telltale mark, establish coordinate system using the telltale mark as origin first when being repaired, and
The accurate coordinate of defect point is determined in the coordinate system, if defect point may be repaired in CF faces, controls generating laser
The transmitting laser repairing defect point, completes the reparation to display panel；If the defect point can not be repaired in CF faces, must
It must be repaired in TFT faces, then the connection of probe and terminal region be disconnected, by the display panel turn-over to be repaired so that TFT faces
Upward, the telltale mark in terminal region is searched out again, the telltale mark is defined as origin, according to the seat preserved before
The accurate coordinate of mark system information and defect point, is accurately positioned the position of the defect point, and control laser transmitter projects laser is repaiied
The multiple defect point, completes the reparation to display panel.Compared with prior art, when carrying out two-sided repairing, it is not necessary to using two
Group probe carries out double contact to display panel, avoids display panel from slight crack occur, improves product yield.
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that the embodiment of the present invention is described in detail, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is existing schematic diagram when being repaired using double contact method to display panel；
Fig. 2 for it is existing display panel is repaired using double contact method when there is the schematic diagram of slight crack；
Fig. 3 is that the restorative procedure of the display panel of the present invention carries out schematic diagram when CF faces are repaired；
Fig. 4 is that the restorative procedure of the display panel of the present invention carries out schematic diagram when TFT faces are repaired.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
The present invention provides a kind of restorative procedure of display panel, comprises the following steps：
Step 1, as shown in Figure 3, there is provided a display panel 10 and display panel prosthetic device 20 to be repaired；
The display panel prosthetic device 20 includes：For placing the reparation base station 207 of the display panel to be repaired 10,
For producing and exporting the generating laser 206 of laser, for one group of probe being connected with the display panel 10 to be repaired
201, it is connected with the probe 201, for producing the signal generator 203 of point modulating signal, for detecting the display to be repaired
The ccd image sensor 202 of panel 10 the defects of point position, sent out for the memory 205 of storage information, and with the laser
The connected controller 204 of emitter 206, signal generator 203, ccd image sensor 202 and memory 205.
Specifically, the generating laser 206 includes several laser beam emitting heads for being used to launch laser.
Specifically, the base station 207 of repairing is provided with the positioner for being used for positioning the display panel to be repaired 10, make
The position for obtaining display panel 10 to be repaired is fixed.
The display panel to be repaired 10 includes panel area 102 and transparent terminal region 101, and the display surface to be repaired
Plate 10 has the CF faces and TFT faces being oppositely arranged, and has defect point in the panel area 102 of the display panel 10 to be repaired, and
The initial coordinate of the defect point is, it is known that be provided with telltale mark 103, because the terminal region 101 is by saturating in the terminal region 101
Bright material is made, from regardless of whether can find the telltale mark 103 from TFT faces or CF faces.
Specifically, the defects of panel area 102 of the display panel to be repaired 10 point is bright line or bright spot etc..
Specifically, the shape of the telltale mark 103 can be " ten " font, circle " O ", equal sign "=" or " rice "
Font.
Specifically, the TFT substrate that the display panel to be repaired 10 includes being oppositely arranged is with CF substrates and located at described
Liquid crystal layer between TFT substrate and CF substrates.
Step 2, the display panel 10 to be repaired is positioned over CF on the reparation base station 207 up, the control
Device 204 processed controls the ccd image sensor 202 to search out the telltale mark 103 in terminal region 101, by the telltale mark 103
It is defined as origin, establishes coordinate system, the information record of the coordinate system is in memory 205.
Step 3, the terminal region 101 that the probe 201 is connected to the display panel to be repaired 10, are lighted described to be repaired
Multiple display panel 10, according to the initial coordinate of the defect point, searches out the position of the defect point, and built in the step 2
The accurate coordinate of the defect point is determined in vertical coordinate system, the memory 205 stores the accurate coordinate of the defect point automatically.
Specifically, control the generation of signal generator 203 to light signal by controller 204 in the step 3 to light
The display panel to be repaired 10.
If step 4, the defect point can be repaired in CF faces, the controller 204 controls generating laser
206 transmitting laser repairing defect points, complete the reparation to display panel 10 to be repaired；If the defect point can not be in CF faces
Repaired, it is necessary to repaired in TFT faces, then continue step 5；
Cause specifically, the situation that the defect point can not be repaired in CF faces is blocked including defect point by black matrix"
Situation about can not repair.
Step 5, as shown in figure 4, disconnecting the connection of probe 201 and terminal region 101, the display panel 10 to be repaired is turned over
Face so that TFT is face-up, and the controller 204 controls the ccd image sensor 202 to search out again in terminal region 101
Telltale mark 103, the telltale mark 103 is defined as origin, the coordinate system informations and described preserved according to the step 2
Step 4 preserves the accurate coordinate of the defects of point, is accurately positioned the position of the defect point, and the controller 204 controls laser hair
The transmitting laser repairing of emitter 206 defect point, completes the reparation to display panel 10 to be repaired.
The step 5, which need not light the display panel to be repaired 10 again, can accurately judge the position of defect point, letter
It is single quick, compared with prior art, it is not necessary to double contact is carried out to display panel using two groups of probes, avoids display panel from going out
Existing slight crack.
In summary, the present invention provides a kind of restorative procedure of display panel, utilizes the terminal region of display panel to be repaired
In telltale mark, establish coordinate system using the telltale mark as origin first when being repaired, and in the coordinate system
The middle accurate coordinate for determining defect point, if defect point may be repaired in CF faces, control laser transmitter projects laser
The defect point is repaired, completes the reparation to display panel；If the defect point can not be repaired in CF faces, it is necessary in TFT
Face is repaired, then the connection of probe and terminal region is disconnected, by the display panel turn-over to be repaired so that and TFT is face-up, then
The secondary telltale mark searched out in terminal region, the telltale mark is defined as origin, believed according to the coordinate system preserved before
The accurate coordinate of breath and defect point, the position of the defect point is accurately positioned, controlling laser transmitter projects laser repairing, this is lacked
Trapping spot, complete the reparation to display panel.Compared with prior art, when carrying out two-sided repairing, it is not necessary to using two groups of probes
Double contact is carried out to display panel, avoids display panel from slight crack occur, improves product yield.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (7)
1. a kind of restorative procedure of display panel, it is characterised in that comprise the following steps：
Step 1, provide a display panel (10) to be repaired and display panel prosthetic device (20)；
The display panel prosthetic device (20) includes：For placing the reparation base station of the display panel to be repaired (10)
(207), for producing and exporting the generating laser (206) of laser, for what is be connected with the display panel (10) to be repaired
One group of probe (201), is connected with the probe (201), for producing the signal generator (203) of point modulating signal, for detecting
The ccd image sensor (202) of display panel to be repaired (10) the defects of point position, the memory for storage information
(205), and with the generating laser (206), signal generator (203), ccd image sensor (202) and memory
(205) connected controller (204)；
The display panel to be repaired (10) includes panel area (102) and transparent terminal region (101), and the display to be repaired
Panel (10) has the CF faces and TFT faces being oppositely arranged, and has in the panel area (102) of the display panel (10) to be repaired and lacks
Trapping spot, and the initial coordinate of the defect point is, it is known that be provided with telltale mark (103), due to the end in the terminal region (101)
Sub-district (101) is made of clear material, from regardless of whether can find the telltale mark (103) from TFT faces or CF faces；
Step 2, the display panel (10) to be repaired is positioned over CF on the reparation base station (207) up, the control
Device (204) processed controls the ccd image sensor (202) to search out the telltale mark (103) in terminal region (101), and this is determined
Position mark (103) is defined as origin, establishes coordinate system, the information record of the coordinate system is in memory (205)；
Step 3, the terminal region (101) that the probe (201) is connected to the display panel to be repaired (10), light described treat
Display panel (10) is repaired, according to the initial coordinate of the defect point, searches out the position of the defect point, and in the step 2
The accurate coordinate of the defect point is determined in the coordinate system of middle foundation, the memory (205) stores the accurate of the defect point automatically
Coordinate；
If step 4, the defect point can be repaired in CF faces, the controller (204) controls generating laser
(206) transmitting laser repairing defect point, completes the reparation to display panel to be repaired (10)；If the defect point can not be
CF is repaired in face, it is necessary to is repaired in TFT faces, then continues step 5；
Step 5, probe (201) and the connection of terminal region (101) are disconnected, by display panel (10) turn-over to be repaired so that
TFT is face-up, and controller (204) control ccd image sensor (202) is found in terminal region (101) again determines
Position mark (103), is defined as origin by the telltale mark (103), the coordinate system informations preserved according to the step 2 and institute
The accurate coordinate that step 4 preserves the defects of point is stated, is accurately positioned the position of the defect point, controller (204) control swashs
Optical transmitting set (206) the transmitting laser repairing defect point, completes the reparation to display panel to be repaired (10).
2. the restorative procedure of display panel as claimed in claim 1, it is characterised in that in the step 1, the Laser emission
Device (206) includes several laser beam emitting heads for being used to launch laser.
3. the restorative procedure of display panel as claimed in claim 1, it is characterised in that in the step 1, the reparation base station
(207) it is provided with the positioner for being used for positioning the display panel to be repaired (10).
4. the restorative procedure of display panel as claimed in claim 1, it is characterised in that described to be repaired aobvious in the step 1
Show that the defects of panel area (102) of panel (10) point is bright line or bright spot.
5. the restorative procedure of display panel as claimed in claim 1, it is characterised in that display panel (10) bag to be repaired
Include the TFT substrate being oppositely arranged and CF substrates and the liquid crystal layer between the TFT substrate and CF substrates.
6. the restorative procedure of display panel as claimed in claim 1, it is characterised in that pass through controller in the step 3
(204) control signal generator (203) generation to light signal and light the display panel to be repaired (10).
7. the restorative procedure of display panel as claimed in claim 1, it is characterised in that in the step 4, the defect point without
The situation that method is repaired in CF faces is the situation that defect point is blocked by black matrix".
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| CN201510459743.XA CN104991391B (en) | 2015-07-30 | 2015-07-30 | The restorative procedure of display panel |
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| CN201510459743.XA CN104991391B (en) | 2015-07-30 | 2015-07-30 | The restorative procedure of display panel |
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| CN104991391B true CN104991391B (en) | 2018-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911725A (en) * | 2016-06-12 | 2016-08-31 | 昆山精讯电子技术有限公司 | Display panel repairing device |
| CN109147656B (en) * | 2017-06-27 | 2021-01-22 | 京东方科技集团股份有限公司 | Repair system and repair method for display panel |
| CN107478979A (en) * | 2017-08-04 | 2017-12-15 | 深圳市阿拉玎光电自动化有限公司 | A kind of defects detection maintenance system, method and maintenance unit |
| CN108287442B (en) * | 2018-02-06 | 2021-11-16 | 重庆京东方光电科技有限公司 | Array substrate repairing method and array substrate |
| CN110672009B (en) * | 2019-10-11 | 2021-06-22 | 宁波舜宇仪器有限公司 | Reference positioning, object posture adjustment and graphic display method based on machine vision |
| CN111127406B (en) * | 2019-12-10 | 2022-09-27 | 创维集团智能装备有限公司 | Back plate machining position adjusting method, terminal, system and storage medium |
| CN111128811A (en) * | 2020-01-16 | 2020-05-08 | 深圳市华星光电半导体显示技术有限公司 | Repairing device for top light-emitting panel and working method thereof |
| CN113351987B (en) * | 2021-06-28 | 2023-04-07 | 乐金显示光电科技(中国)有限公司 | Laser repairing method and device for panel |
| CN117849068B (en) * | 2024-01-18 | 2024-08-27 | 深圳市深顺欣科技有限公司 | Defect indication method and device for display module detection and computer equipment |
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| CN104991391A (en) | 2015-10-21 |
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