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US 9,000,435 B1Granted
Display device and testing line repairing method thereof
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorsPeng Du, Minghung Shih
Life of this patent
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Abstract
A display device and a testing line repairing method thereof is provided herein and the method comprises steps of: cutting off a connection between a first input end of a first thin film transistor (TFT), a first output end and a testing signal input line; and connecting a first dummy line and a testing signal output line by a laser welding method. The width-to-length ration in the display device of the present disclosure won't be varied and an abnormal display in the light-on testing won't happen.
Claims20
A display device, comprising:
- a display panel comprising:
- a first thin film transistor (TFT) array comprising at least one first TFT;
- a second TFT array comprising at least one second TFT;
- and
- at least one first dummy line,
- wherein the first TFT is adjacent to the second TFT and the second TFT is connected with a testing signal input line and the first dummy line;
- when a short circuit has occurred in the first TFT, a first connection between a first input end of the first TFT and the first dummy line is cut off by a laser cutting method, and a second connection between the first input end of the first TFT and a testing signal output line is cut off by the laser cutting method, the first dummy line is connected with the testing signal output line by a laser welding method;
- and the display panel further comprising:
- a controlling signal line array comprising at least one controlling signal line;
- and
- a first controlling end of the first TFT is connected with a second controlling end of the second TFT and the controlling signal line, and when the short circuit has occurred in the first TFT, a controlling signal is received in the second controlling end from the controlling signal line;
- the first output end is a drain or a source of the first TFT when the first input end is the source or the drain of the first TFT.
9 more elements
A display device, comprising:
- a display panel comprising:
- a first TFT array comprising at least one first TFT;
- a second TFT array comprising at least one second TFT;
- and
- at least one first dummy line,
- wherein the first TFT is adjacent to the second TFT, and the second TFT is connected with a testing signal input line and the first dummy line;
- when a short circuit has occurred in the first TFT, a first connection between a first input end of the first TFT and the first dummy line is cut off by a laser cutting method and a second connection between the first input end of the first TFT and a testing signal output line is cut off by the laser cutting method, the first dummy line is connected with the testing signal output line by a laser welding method.
4 more elements
Dependencies are inferred from the claim text.