Display device and method of inspecting thereof
AssigneeSamsung Display Co., Ltd.
InventorsJi Young Lee, Yong Bin Kim, Gun Woo Yang, Hyun Young Choi
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Abstract
A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.
Claims20
A display device comprising:
- a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line;
- a scan driver configured to supply a scan signal to the scan lines;
- and
- an emission driver configured to supply an emission control signal to the emission control lines,
- wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and
- the display device is configured to maintain the voltage of the first power at a third level.
An inspecting method for a display device including a data line, a scan line, a power line, and a pixel connected to the data line, the scan line, and the power line, the method comprising:
- forming a current path flowing from the data line to the power line through the pixel by supplying a first power having a first level during a first period;
- detecting a current flowing through the data line during the first period;
- and
- detecting a current flowing through the data line by supplying the first power having a second level lower than the first level to the power line during a second period.
Dependencies are inferred from the claim text.