CN102854647A - Method for preparing bright spot pixel defect of display panel as well as display panel - Google Patents
Method for preparing bright spot pixel defect of display panel as well as display panel Download PDFInfo
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- CN102854647A CN102854647A CN2012103696167A CN201210369616A CN102854647A CN 102854647 A CN102854647 A CN 102854647A CN 2012103696167 A CN2012103696167 A CN 2012103696167A CN 201210369616 A CN201210369616 A CN 201210369616A CN 102854647 A CN102854647 A CN 102854647A
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Abstract
The invention provides a method for preparing a bright spot pixel defect of a display panel, comprising the following step of: arranging a shielding layer at the position of a polaroid at one side of a colored film substrate and/or at one side of an array substrate, which corresponds to the position of a sub-pixel with a bright spot pixel defect, so as to shield the sub-pixel with the bright spot pixel defect and enable the sub-pixel to be light-proof. Correspondingly, the invention provides the display panel adopting the method disclosed by the invention to repair. Compared with the prior art, the method for preparing the bright spot pixel defect of the display panel has the advantages of fast repairing speed, high efficiency, low cost and the like.
Description
Technical field
The invention belongs to the display technology field, be specifically related to a kind of method and display panel of repairing display panel bright spot pixel flaw.
Background technology
Display is usually as the interface between electronic equipment and the user, and its electronic intelligence signal of each class of electronic devices being exported as device for display of message changes into the light intelligence signal, so that the user is from visually identifying this type of information.In field of display, flat-panel screens generally comprises Thin Film Transistor-LCD (TFT-LCD, Thin FilmTransistor-Liquid Crystal Display), plasma panel display (PDP, Plasma Display Panel), Field Emission Display (FED, Field EmissionDisplay), organic light emitting diode display (OLED, Organic Light EmittingDiode) etc.Wherein, TFT-LCD with its large scale, highly integrated, powerful, technique is flexible, the advantage such as low-cost and be widely used in the fields such as televisor, computer, mobile phone.
In TFT-LCD, display panel is one of critical piece, and it comprises array base palte (being also referred to as the TFT substrate) and color membrane substrates (being also referred to as the CF substrate).The manufacturing process of described display panel generally comprises array (Array) technique, and liquid crystal becomes box (Cell) technique and module (Module) technique etc.
Wherein, described array processes is used for making array base palte and color membrane substrates.Described liquid crystal molding process comprises into technique before the box, become in the box technique and become box after technique.Technique is used for forming uniform oriented layer at the array base palte of making and color membrane substrates surface respectively before the described one-tenth box; The color membrane substrates that becomes technique in the box to be used for being coated with the array base palte of sealed plastic box and be formed with chock insulator matter and injected liquid crystal is fitted under vacuum environment, then described sealed plastic box is solidified, to form liquid crystal cell; Technique is used for described liquid crystal cell is cut into a plurality of display panels by product size after becoming box, and attaches respectively polaroid in the upper and lower surface of described a plurality of display panels.Described module technique is assembled into the display panel finished product with exterior parts such as driving circuit, printed circuit board (PCB), backlights respectively for the display panel that will be pasted with polaroid.
Also be provided with into box reparation (Cell Test) technique between above-mentioned liquid crystal molding process and module technique, whether the display panel of finishing the liquid crystal molding process with detection is qualified, and underproof display panel is repaired.In becoming box renovation technique process, find, when dust, organism, metal impurities are adsorbed onto in the display panel near color film (colorfilter, during colored filter) regional, corresponding to these regional sub-pixs (SubPixel) can transmit than the brightness of other normal sub-pixs bright the light of Duoing, bright spot pixel flaw (Bright Pixel Defect) phenomenon namely occurs, thereby cause described display panel to produce light leak and have a strong impact on the quality of display panel, therefore need to repair the sub-pix with bright spot pixel flaw.
In the traditional handicraft, the technique that described sub-pix with bright spot pixel flaw is repaired was generally finished before the liquid crystal molding process, this is because before the liquid crystal molding process, element on array base palte and the color membrane substrates all exposes outside, on the element dust is arranged as described, organism, metal impurities, can adopt laser described impurity to be destroyed and in follow-up cleaning, washed described impurity residue, because in case finish after the liquid crystal molding process, described impurity is difficult for the sub-pix with bright spot pixel flaw has been repaired with regard to being enclosed in the display panel.
But in the actual production, before the liquid crystal molding process, described impurity cleared up and to guarantee impurity is cleaned out fully, perhaps in liquid crystal molding process process, also may produce impurity, therefore all may cause the sub-pix generation bright spot pixel flaw phenomenon of described impurity corresponding region.For addressing the above problem, in the prior art, the method that adopts Ear Mucosa Treated by He Ne Laser Irradiation to repair the sub-pix with bright spot pixel flaw is arranged, concrete technical scheme is as follows:
Be 200880102671.1 at application number, name is called in the disclosed technical scheme of Chinese patent application of " method of flat panel display repair ", propose to use laser to locate or between this color filter and glass (being substrate), form a gap at the color filter with bright spot pixel flaw (being color film), then use laser to decompose the black matix adjacent with this color filter (i.e. black matrix), and make described black matix to the defect areas diffusion of color filter, to repair the bright spot pixel flaw of display device.
Be 200880020731.5 at application number, name is called in the disclosed technical scheme of Chinese patent application of " method of flat panel display repair ", propose optionally to use the laser of certain wavelength coverage, make pixel (color filter and adjacent black matix thereof) that its irradiation has bright spot pixel flaw so that this flaw pixel is dimmed, to repair the bright spot pixel flaw of display device.
The something in common of the technical scheme in the above-mentioned patent application document is: the bright spot pixel flaw of all eliminating the sub-pix in color filter (being color film) zone with laser.But when adopting the described bright spot pixel of laser repairing flaw, have the shortcomings such as reparation speed is slow, efficient is low, equipment cost is high, and can cause the further decline of its efficient along with the maximization of display panels.
Summary of the invention
Technical matters to be solved by this invention is for the above-mentioned problems in the prior art, and a kind of method of display panel bright spot pixel flaw and display panel that adopts described method to repair repaired is provided.
The technical scheme that solution the technology of the present invention problem adopts is:
The method of described reparation display panel bright spot pixel flaw comprises:
1) barrier bed is set being arranged at color membrane substrates one side and/or being arranged at position corresponding with the position of the sub-pix with bright spot pixel flaw on the polaroid of array base palte one side, describedly has the sub-pix of bright spot pixel flaw and make it light tight to block.
Preferably, described barrier bed adopts to block and describedly has the sub-pix of bright spot pixel flaw and its lighttight curable liquid is made.
Preferably, the material of described curable liquid comprises film forming matter, auxiliary agent and organic solvent.
Preferably, be doped with black pigment in the described curable liquid.
Preferably, described black pigment is carbon black, dim, acetylene black or graphite.
Preferably, adopting the thickness range of the barrier bed that described curable liquid makes is 1-2 μ m.
Preferably, described barrier bed describedly has the sub-pix of bright spot pixel flaw and makes its lighttight pad pasting for blocking.
Preferably, described pad pasting adopts negative photoresist to make.
Preferably, the material of described negative photoresist comprises 1-Methoxy-2-propyl acetate and carbon black.
Preferably, the thickness range of described pad pasting is 1-3 μ m.
Preferably, also comprise before the described step 1): the step of obtaining the position of the sub-pix with bright spot pixel flaw at display panel.
Preferably, the step of obtaining the position of the sub-pix with bright spot pixel flaw at display panel is specially: adopt white light source that it is lighted and controlled to display panel to be repaired and show black image, the position that then obtains the sub-pix with bright spot pixel flaw at display panel.
The present invention provides a kind of display panel simultaneously, it comprises the sub-pix with bright spot pixel flaw, described display panel comprises color membrane substrates, array base palte and is separately positioned on color membrane substrates one side and the polaroid of array base palte one side, wherein, be provided with barrier bed being arranged at color membrane substrates one side and/or being arranged on the polaroid of array base palte one side the position corresponding with the position of described sub-pix with bright spot pixel flaw, describedly have the sub-pix of bright spot pixel flaw and make it light tight to block.
Beneficial effect:
1) method of reparation display panel bright spot pixel flaw of the present invention is compared with traditional renovation technique, the sub-pix that can be after the molding process of display panel display panel be had a bright spot pixel flaw is repaired, and therefore can effectively repair the bright spot pixel flaw that produces in the molding process process.
2) method of reparation display panel bright spot pixel flaw of the present invention is compared with the method that the available technology adopting Ear Mucosa Treated by He Ne Laser Irradiation is repaired, have simple, reparation speed is fast, efficient is high and low cost and other advantages.
3) method of reparation display panel bright spot pixel flaw of the present invention can be repaired all sub-pixs with bright spot pixel flaw, has greatly improved the qualification rate of display panel.
Description of drawings
Fig. 1 is the structural representation of display panel described in the embodiment of the invention 1;
Fig. 2 is the method flow schematic diagram of repairing display panel bright spot pixel flaw in the embodiment of the invention 2.
Among the figure: the 1-substrate; The 2-polaroid; The 3-barrier bed.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments method and the display panel that the present invention repairs display panel bright spot pixel flaw is described in further detail.
Embodiment 1:
The present embodiment provides a kind of method of repairing display panel bright spot pixel flaw, comprise the steps: barrier bed to be set being arranged at color membrane substrates one side and/or being arranged at position corresponding with the position of the sub-pix with bright spot pixel flaw on the polaroid of array base palte one side, describedly have the sub-pix of bright spot pixel flaw and make it light tight to block.
As seen, the method for described reparation display panel bright spot pixel flaw is simple, and can repair all sub-pixs with bright spot pixel flaw, compares with the method that the available technology adopting Ear Mucosa Treated by He Ne Laser Irradiation is repaired that reparation speed is fast, efficient is high.
The present embodiment provides a kind of display panel simultaneously, and it comprises the sub-pix with bright spot pixel flaw, and described display panel comprises color membrane substrates, array base palte and is separately positioned on color membrane substrates one side and the polaroid of array base palte one side.
As shown in Figure 1, be provided with barrier bed 3 being arranged at color membrane substrates one side and/or being arranged on the polaroid 2 of array base palte one side the position corresponding with the position of described sub-pix with bright spot pixel flaw, describedly have the sub-pix of bright spot pixel flaw and make it light tight to block.
Need to prove, substrate described in Fig. 11 can be the substrate in the color membrane substrates, also can be the substrate in the array base palte.Certainly, described barrier bed 3 also can be separately positioned on the substrate of the substrate of color membrane substrates and array base palte.
Embodiment 2:
As shown in Figure 2, the present embodiment provides a kind of method of repairing display panel bright spot pixel flaw, comprises the steps:
S101. adopt white light source that it is lighted and controlled to display panel to be repaired and show black image, the position that then obtains the sub-pix with bright spot pixel flaw at display panel.
S102. barrier bed is set being arranged at color membrane substrates one side and/or being arranged at position corresponding with the position of the sub-pix with bright spot pixel flaw on the polaroid of array base palte one side, describedly has the sub-pix of bright spot pixel flaw and make it light tight to block.The thickness of described barrier bed is can make described light tight being advisable of sub-pix with bright spot pixel flaw.
Wherein, described barrier bed adopts to block and describedly has the sub-pix of bright spot pixel flaw and its lighttight curable liquid is made.
The material of preferred described curable liquid comprises film forming matter, auxiliary agent and organic solvent, and described film forming matter can adopt synthetic macromolecule resin, natural resin or modified grease etc.
Be doped with black pigment in the preferred described curable liquid.According to the CI classification of inorganic black pigment, described black pigment can adopt mineral black 6(77266) or mineral black 7(77266).Preferred black pigment is carbon black, dim, acetylene black or graphite, and wherein, described carbon black comprises that channel black, furnace black and hot tearing are black.The benefit of doping black pigment is in described curable liquid: described barrier bed not only can block the light from the backlight place, can also absorb the light of the environment that comes from the outside.
The thickness range of the barrier bed that the described curable liquid of preferred employing is made is 1-2 μ m.
The present embodiment provides a kind of display panel simultaneously, and it comprises the sub-pix with bright spot pixel flaw, and described display panel comprises color membrane substrates, array base palte and is separately positioned on color membrane substrates one side and the polaroid of array base palte one side.Wherein, be provided with barrier bed being arranged at color membrane substrates one side and/or being arranged on the polaroid of array base palte one side the position corresponding with the position of described sub-pix with bright spot pixel flaw, describedly have the sub-pix of bright spot pixel flaw and make it light tight to block.Material and the thickness with above-mentioned barrier bed is identical respectively with thickness for the material of described barrier bed.
Additive method in the present embodiment, structure and effect are all identical with embodiment 1, repeat no more here.
Embodiment 3:
The difference of the present embodiment and embodiment 2 is:
In the method and display panel of the described reparation display panel bright spot of the present embodiment pixel flaw, described barrier bed describedly has the sub-pix of bright spot pixel flaw and makes its lighttight pad pasting for blocking.
Preferred described pad pasting adopts negative photoresist to make.The material of described negative photoresist comprises 1-Methoxy-2-propyl acetate (PGMEA), carbon black and existing adjuvant etc.
The thickness range of preferred described pad pasting is 1-3 μ m.
Additive method in the present embodiment, structure and effect are all identical with embodiment 2, repeat no more here.
Be understandable that, above embodiment only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement also are considered as protection scope of the present invention.
Claims (13)
1. a method of repairing display panel bright spot pixel flaw is characterized in that, described method comprises:
1) barrier bed is set being arranged at color membrane substrates one side and/or being arranged at position corresponding with the position of the sub-pix with bright spot pixel flaw on the polaroid of array base palte one side, describedly has the sub-pix of bright spot pixel flaw and make it light tight to block.
2. method according to claim 1 is characterized in that, described barrier bed adopts to block describedly to have the sub-pix of bright spot pixel flaw and its lighttight curable liquid is made.
3. method according to claim 2 is characterized in that, the material of described curable liquid comprises film forming matter, auxiliary agent and organic solvent.
4. method according to claim 2 is characterized in that, is doped with black pigment in the described curable liquid.
5. method according to claim 4 is characterized in that, described black pigment is carbon black, dim, acetylene black or graphite.
6. each described method is characterized in that according to claim 2-5, and adopting the thickness range of the barrier bed that described curable liquid makes is 1-2 μ m.
7. method according to claim 1 is characterized in that, described barrier bed describedly has the sub-pix of bright spot pixel flaw and makes its lighttight pad pasting for blocking.
8. method according to claim 7 is characterized in that, described pad pasting adopts negative photoresist to make.
9. method according to claim 8 is characterized in that, the material of described negative photoresist comprises 1-Methoxy-2-propyl acetate and carbon black.
10. each described method is characterized in that according to claim 7-9, and the thickness range of described pad pasting is 1-3 μ m.
11. according to claim 1-5, each described method among the 7-9, it is characterized in that, also comprise before the described step 1): the step of obtaining the position of the sub-pix with bright spot pixel flaw at display panel.
12. method according to claim 11, it is characterized in that, the step of obtaining the position of the sub-pix with bright spot pixel flaw at display panel is specially: adopt white light source that it is lighted and controlled to display panel to be repaired and show black image, the position that then obtains the sub-pix with bright spot pixel flaw at display panel.
13. display panel, it comprises the sub-pix with bright spot pixel flaw, described display panel comprises color membrane substrates, array base palte and is separately positioned on color membrane substrates one side and the polaroid of array base palte one side, it is characterized in that, be provided with barrier bed being arranged at color membrane substrates one side and/or being arranged on the polaroid of array base palte one side the position corresponding with the position of described sub-pix with bright spot pixel flaw, describedly have the sub-pix of bright spot pixel flaw and make it light tight to block.
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| CN2012103696167A CN102854647A (en) | 2012-09-28 | 2012-09-28 | Method for preparing bright spot pixel defect of display panel as well as display panel |
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| CN2012103696167A CN102854647A (en) | 2012-09-28 | 2012-09-28 | Method for preparing bright spot pixel defect of display panel as well as display panel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105807461A (en) * | 2016-05-31 | 2016-07-27 | 京东方科技集团股份有限公司 | Method for maintenance against bright spots of display screen and display screen |
| CN107255872A (en) * | 2017-07-19 | 2017-10-17 | 深圳市华星光电半导体显示技术有限公司 | A kind of bad desalination method of display device line |
| CN107390395A (en) * | 2017-08-18 | 2017-11-24 | 深圳市华星光电半导体显示技术有限公司 | Display panel bright spot restorative procedure |
| CN107479220A (en) * | 2017-08-11 | 2017-12-15 | 京东方科技集团股份有限公司 | The restorative procedure of display screen prosthetic device and display screen |
| CN109581705A (en) * | 2017-09-28 | 2019-04-05 | 灿美工程股份有限公司 | Light shield formula restorative procedure |
| CN112331079A (en) * | 2020-11-06 | 2021-02-05 | 京东方科技集团股份有限公司 | Display panel and display device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105807461A (en) * | 2016-05-31 | 2016-07-27 | 京东方科技集团股份有限公司 | Method for maintenance against bright spots of display screen and display screen |
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| CN107479220B (en) * | 2017-08-11 | 2020-06-26 | 京东方科技集团股份有限公司 | Display screen repairing device and method |
| CN107390395A (en) * | 2017-08-18 | 2017-11-24 | 深圳市华星光电半导体显示技术有限公司 | Display panel bright spot restorative procedure |
| CN109581705A (en) * | 2017-09-28 | 2019-04-05 | 灿美工程股份有限公司 | Light shield formula restorative procedure |
| CN112331079A (en) * | 2020-11-06 | 2021-02-05 | 京东方科技集团股份有限公司 | Display panel and display device |
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Application publication date: 20130102 |