Title:
METHOD FOR MANUFACTURING DISPLAY DEVICE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207798
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a display device capable of easily and reliably repairing a pixel circuit by converting the pixel circuit to a dark spot, and a display device. A repair wire REP, which supplies an off potential for turning a driving transistor T4 to an off state, is superimposed onto an impurity region DSI of a semiconductor layer SI interposed between a first compensation transistor T21 and a second compensation transistor T22 that have dual-gate structures. The impurity region DSI and the repair wire REP are connected by irradiating the impurity region DSI with laser light. Next, the potential of a node N is set to the same potential as an OFF potential by turning the second compensation transistor T22 to an ON state, and thus the driving transistor T4 is turned to a normally-off state. This makes it possible to convert the pixel circuit 11 to a dark spot and repair the same.
Inventors:
FURUKAWA TOMOO
Application Number:
PCT/JP2018/017319
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G09F9/00; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2015190092A1 | 2015-12-17 |
Foreign References:
| JP2017120399A | 2017-07-06 | |||
| JP2010049283A | 2010-03-04 | |||
| JP2010128313A | 2010-06-10 | |||
| JP2017130466A | 2017-07-27 | |||
| JP2005092154A | 2005-04-07 | |||
| JP2008123700A | 2008-05-29 | |||
| JP2015106129A | 2015-06-08 |
Attorney, Agent or Firm:
SHIMADA, Akihiro et al. (JP)
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