CN102983283A - Reparable AMOLED device, display screen and repairing method thereof - Google Patents
Reparable AMOLED device, display screen and repairing method thereof Download PDFInfo
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- CN102983283A CN102983283A CN2012105029717A CN201210502971A CN102983283A CN 102983283 A CN102983283 A CN 102983283A CN 2012105029717 A CN2012105029717 A CN 2012105029717A CN 201210502971 A CN201210502971 A CN 201210502971A CN 102983283 A CN102983283 A CN 102983283A
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Abstract
The invention discloses a reparable AMOLED (Active Matrix Organic Light Emitting Diode) device and a repairing method thereof. The AMOLED device comprises an electrode and an organic luminous layer, wherein the electrode is divided into a plurality of sub-pixel regions, and each sub-pixel region is electrically connected with at least one of other adjacent sub-pixel regions through a cross structure. When dark spots or bright spots occur, the cross structure between the sub-pixel region of a cathode with defects and other sub-pixel regions can be cut off through laser, so that the electric connection between the sub-pixel region and other sub-pixel regions is cut off; the method is simple, and is easy to operate; and the damage of laser repairing to other pixel regions can be minimally reduced, so that the purpose of yield improvement is achieved.
Description
Technical field
The present invention relates to OLED(Organic Light Emitting Diode, Organic Light Emitting Diode) technical field, specifically, be repairable AMOLED(Active Matrix OLED, active matrix OLED) device, display screen and method for repairing and mending thereof.
Background technology
The OLED display device is the active illuminating device, compare present main flow flat panel display Thin Film Transistor-LCD (TFT-LCD), OLED has the advantages such as high-contrast, wide viewing angle, low-power consumption, volume be thinner, being expected to become the flat panel display of future generation after LCD, is one of the maximum technology that receives publicity in the present flat panel display.
Typical OLED device comprises anode, negative electrode and places emission layer between these two electrodes.When applying voltage between anode and the negative electrode, hole and electronics move to emission layer, and in emission layer again in conjunction with and luminous.
In the OLED device, even may apply also non-luminous dim spot of voltage because the short circuit between anode and the negative electrode causes.Also may be owing to the bright spot that defective (such as anode and power line short circuit) causes appears in TFT backboard in the pixel.
In the AMOLED device, because DSD dark spot defect appears in the partial short-circuit between anode and the negative electrode, a problem of this dim spot is, along with time lapse, it is large that the size of dim spot becomes, and to the last whole unit pixel becomes a dark pixel that can not be lit, and causes the reliability decrease of OLED.
For fear of defects the OLED display screen is caused harmful effect, need to repair the dim spot or the bright spot that occur.Method for repairing and mending for the dim spot routine is with laser short-circuited region impurity to be removed, but this method can be damaged the viewing area of periphery, perhaps make figure at pixel electrode (anode), pixel segmentation is opened, but because TFT(Thin Film Transistor, Thin Film Transistor (TFT)) complicated (the particularly application of compensating circuit of array, such as 6T2C, 5T1C), laser be difficult to see through tft array and repairs for anode, and if repair from the cathode side antianode will certainly be to whole OLED pixel injury.
And be at the TFT backboard circuit circuit that backups for the method for repairing and mending of fleck defect routine, perhaps cut off first data wire, solder pad holds TFT to receive fixed potential OLED again, so that OLED negative electrode and anode keep equipotential, the shortcoming of the method is to occupy wiring space, affects aperture opening ratio.Other method directly from the OLED side with negative electrode and OLED material damage, this method may be damaged neighboring pixel, perhaps causes anode and negative electrode short circuit in the mending course, if anode just with the short circuit of peripheral power supply line, will cause whole display floater to lose efficacy; And the laser preparing shape is difficult to regularization, causes part OLED zone to destroy not exclusively, is shown as sparklet.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of method for repairing and mending is simple, easy operating, need not destroy oled layer, laser is dropped to minimum to the damage of neighboring pixel, repairs high repairable AMOLED device, display screen and the method for repairing and mending thereof of yield.
In order to solve the problems of the technologies described above, the invention provides a kind of repairable AMOLED device, comprise electrode and organic luminous layer, described electrode is divided into a plurality of subpixel area, and at least one in each subpixel area and adjacent other subpixel area forms by connecting bridge and be electrically connected.
Further, the electrode of each described subpixel area is divided into a plurality of subregions, and at least one in every sub regions and adjacent other subregion forms by connecting bridge and be electrically connected.
Further, described electrode refers to negative electrode.
Further, described subpixel area is shaped as square, rectangle, circle, triangle or polygon.
Further, described connecting bridge is formed on the middle part on the adjacent limit of described subpixel area.
Further, be equipped with described connecting bridge between the subpixel area that described subpixel area is adjacent with all.
Further, described connecting bridge also is formed between the corner of the described subpixel area subpixel area adjacent with other.
Further, by radome with described negative electrode patterning, thereby described negative electrode is divided into a plurality of subpixel area.
Further, for the openings of sizes of the radome of making figure and the rgb pixel in the same size of AMOLED device.
The present invention also provides a kind of display screen that is made of above-mentioned repairable AMOLED device.
The present invention also provides a kind of method for repairing and mending of AMOLED device, comprising:
Detect the zone that occurs defective on the AMOLED device;
Subpixel area and the connecting bridge between other subpixel area of utilizing laser will go out the regional corresponding negative electrode of defective are cut off.
Repairable AMOLED device of the present invention, display screen and method for repairing and mending thereof, when dim spot or bright spot occurring, subpixel area and the cut-out of the connecting bridge between other subpixel area of the negative electrode of defective can will appear by laser, thereby disconnect the disconnection that is electrically connected between this subpixel area and other subpixel area, method is simple, easy operating, but minimally reduces laser preparing to the damage in other zones of pixel, thereby reaches the purpose that improves yield.
Description of drawings
Fig. 1 is the schematic diagram of the first embodiment of repairable AMOLED device of the present invention.
Fig. 2 is the schematic diagram of the second embodiment of repairable AMOLED device of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
Repairable AMOLED device of the present invention comprises electrode and organic luminous layer, and wherein electrode is divided into a plurality of subpixel area, and at least one in each subpixel area and adjacent other subpixel area forms by connecting bridge and be electrically connected.Electrode comprises negative electrode and anode, and negative electrode and anode can be divided into a plurality of subpixel area.If cut apart by antianode and realize to repair, because anode-side has a lot of metal-made elements keeping off, repairing from the TFT side has larger operation easier, and if repair from the OLED side, can damage the OLED device, therefore preferably negative electrode is cut apart.The shape of subpixel area can be square, rectangle, circle, triangle or polygon etc.Connecting bridge is formed on the middle part on the adjacent limit of described subpixel area.Display of the present invention comprises pel array, and each pixel in the pel array is made of above-mentioned repairable AMOLED device.
The first embodiment of of the present invention repairable AMOLED device as shown in Figure 1, in the present embodiment, when making the AMOLED device, at first prepare the TFT substrate, form anode, organic luminous layer and negative electrode 1 at this substrate, utilize radome (Shadow mask) with this negative electrode 1 patterning, make negative electrode 1 be divided into a plurality of subpixel area 2, each subpixel area 2 forms by connecting bridge 3 with adjacent other subpixel area 2 ' and is electrically connected.
The OLED device that inspection is made with said method, and when this OLED device has bright spot to produce, detection causes subpixel area corresponding to the short-circuited region of dark pixel 2, when fleck defect appears in wherein one or more subpixel area, be connected to connecting bridge 3a on this zone by the negative electrode laser cutting, 3b, 3c, 3d, 3e, 3f, 3g and 3h, disconnection is electrically connected with other subpixel area 2 ', thereby reach the purpose that bright point repairing is become dim spot, and guaranteeing that other zones of this pixel still work, minimally reduces laser preparing to the damage in other zones of pixel.With the negative electrode patterning time, Mask need in the process to decide whole outside stretching in nation, consider that Mask nation decides the problem of tension force, thereby dwindle the light-emitting zone area in order to prevent figure from distortion occurring to the light-emitting zone stretching, can between each subpixel area subpixel area adjacent with all, connecting bridge be set all, except the middle part on the adjacent limit of subpixel area forms connecting bridge 3a, 3c, 3e, the 3g, can also between the corner of the subpixel area subpixel area adjacent with other, also form connecting bridge 3b, 3d, 3f, 3h.Be used for to make figure Shadow mask openings of sizes can with the rgb pixel in the same size of AMOLED device, can realize with existing evaporation process.
In addition, can also cut apart the electrode (especially negative electrode) of subpixel area again, the electrode of subpixel area is divided into a plurality of less subregions, at least one in every sub regions and adjacent other subregion forms by connecting bridge and is electrically connected.The second embodiment of of the present invention repairable AMOLED device as shown in Figure 2, in the present embodiment, by negative electrode 4 patternings of radome (Shadow mask) with subpixel area, be divided into a plurality of subregions 5, form electrical connection by connecting bridge 6 between the subregion 5.Check whether the OLED device has dark pixel to produce, and when this OLED device has dark pixel to produce, detection causes subregion corresponding to the short-circuited region of dark pixel, be connected to connecting bridge on this zone by the negative electrode laser cutting, disconnection is electrically connected with other zone, thereby dim spot reparation that should the zone, and guarantee that other zones of this pixel still work, minimally reduces laser preparing to the damage in other zones of pixel.By subpixel area is further cut apart, can realize more accurate repairing, drop to minimum on the impact of AMOLED device defective.
The method for repairing and mending of AMOLED device of the present invention comprises:
Detect the zone that occurs defective on the AMOLED device;
Subpixel area and the connecting bridge between other subpixel area of utilizing laser will go out the regional corresponding negative electrode of defective are cut off.
No matter be the defective that produces the defective of dim spot or produce bright spot, all can repair fully by above-mentioned method for repairing and mending, simple and convenient, have a versatility.
Display screen of the present invention is made of the pel array that a plurality of pixel cells form, and each pixel cell is made of above-mentioned repairable AMOLED device.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited to this.Being equal to that those skilled in the art do on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (11)
1. a repairable AMOLED device comprises electrode and organic luminous layer, it is characterized in that described electrode is divided into a plurality of subpixel area, and at least one in each subpixel area and adjacent other subpixel area forms by connecting bridge and be electrically connected.
2. repairable AMOLED device according to claim 1 is characterized in that the electrode of each described subpixel area is divided into a plurality of subregions, and at least one in every sub regions and adjacent other subregion forms by connecting bridge and be electrically connected.
3. repairable AMOLED device according to claim 1 and 2 is characterized in that described electrode refers to negative electrode.
4. repairable AMOLED device according to claim 1 is characterized in that, described subpixel area be shaped as square, rectangle, circle, triangle or polygon.
5. repairable AMOLED device according to claim 1 is characterized in that, described connecting bridge is formed on the middle part on the adjacent limit of described subpixel area.
6. repairable AMOLED device according to claim 5 is characterized in that, is equipped with described connecting bridge between the described subpixel area subpixel area adjacent with all.
7. repairable AMOLED device according to claim 5 is characterized in that, described connecting bridge also is formed between the corner of the described subpixel area subpixel area adjacent with other.
8. repairable AMOLED device according to claim 1 is characterized in that, by radome with described negative electrode patterning, thereby described negative electrode is divided into a plurality of subpixel area.
9. repairable AMOLED device according to claim 8 is characterized in that, for the openings of sizes of the radome of making figure and the rgb pixel in the same size of AMOLED device.
10. display screen that is consisted of by the described repairable AMOLED device of claim 1 ~ 9 any one.
11. the method for repairing and mending of an AMOLED device is characterized in that, comprising:
Detect the zone that occurs defective on the AMOLED device;
Subpixel area and the connecting bridge between other subpixel area of utilizing laser will go out the regional corresponding negative electrode of defective are cut off.
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| CN201210502971.7A CN102983283B (en) | 2012-11-30 | 2012-11-30 | Repairable AMOLED device, display screen and method for repairing and mending thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806458A3 (en) * | 2013-05-22 | 2015-03-11 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of repairing the same |
| CN104700774A (en) * | 2013-12-09 | 2015-06-10 | 乐金显示有限公司 | Organic light emitting display device having repair structure |
| CN107248391A (en) * | 2017-06-27 | 2017-10-13 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, method for maintaining and display device |
| CN114203782A (en) * | 2021-12-07 | 2022-03-18 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and repair method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030038591A1 (en) * | 2001-08-21 | 2003-02-27 | Lg Electronics Inc. | Organic electroluminescence display panel and fabrication method thereof |
| CN1925702A (en) * | 2005-08-30 | 2007-03-07 | 三星Sdi株式会社 | Organic light emitting display and method of fabricating the same |
| CN1976054A (en) * | 2006-12-29 | 2007-06-06 | 清华大学 | Organic illuminating display device |
| CN101533844A (en) * | 2008-03-14 | 2009-09-16 | 北京京东方光电科技有限公司 | Thin film transistor array substrate and maintenance method thereof |
| CN101713892A (en) * | 2008-10-08 | 2010-05-26 | 瀚宇彩晶股份有限公司 | Pixel structure and method for repairing same |
| KR20100093220A (en) * | 2009-02-16 | 2010-08-25 | 삼성모바일디스플레이주식회사 | Pixel repair structure for repairing pixel defect of organic light emitting display device and method of repairing the same |
-
2012
- 2012-11-30 CN CN201210502971.7A patent/CN102983283B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030038591A1 (en) * | 2001-08-21 | 2003-02-27 | Lg Electronics Inc. | Organic electroluminescence display panel and fabrication method thereof |
| CN1925702A (en) * | 2005-08-30 | 2007-03-07 | 三星Sdi株式会社 | Organic light emitting display and method of fabricating the same |
| CN1976054A (en) * | 2006-12-29 | 2007-06-06 | 清华大学 | Organic illuminating display device |
| CN101533844A (en) * | 2008-03-14 | 2009-09-16 | 北京京东方光电科技有限公司 | Thin film transistor array substrate and maintenance method thereof |
| CN101713892A (en) * | 2008-10-08 | 2010-05-26 | 瀚宇彩晶股份有限公司 | Pixel structure and method for repairing same |
| KR20100093220A (en) * | 2009-02-16 | 2010-08-25 | 삼성모바일디스플레이주식회사 | Pixel repair structure for repairing pixel defect of organic light emitting display device and method of repairing the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806458A3 (en) * | 2013-05-22 | 2015-03-11 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of repairing the same |
| US9911799B2 (en) | 2013-05-22 | 2018-03-06 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of repairing the same |
| USRE49484E1 (en) | 2013-05-22 | 2023-04-04 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of repairing the same |
| CN104700774A (en) * | 2013-12-09 | 2015-06-10 | 乐金显示有限公司 | Organic light emitting display device having repair structure |
| CN104700774B (en) * | 2013-12-09 | 2017-07-11 | 乐金显示有限公司 | With the organic light-emitting display device for repairing structure |
| CN107248391A (en) * | 2017-06-27 | 2017-10-13 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, method for maintaining and display device |
| WO2019000930A1 (en) * | 2017-06-27 | 2019-01-03 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof, maintenance method, and display device |
| US11200840B2 (en) | 2017-06-27 | 2021-12-14 | Boe Technology Group Co., Ltd. | Display panel, manufacturing method thereof, maintenance method thereof and display device |
| CN114203782A (en) * | 2021-12-07 | 2022-03-18 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and repair method thereof |
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| CN102983283B (en) | 2016-04-27 |
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Effective date of registration: 20201215 Address after: No.146 Tianying Road, high tech Zone, Chengdu, Sichuan Province Patentee after: Chengdu CHENXIAN photoelectric Co.,Ltd. Address before: No. 188, CHENFENG Road, Kunshan high tech Zone, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshan New Flat Panel Display Technology Center Co.,Ltd. |
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