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US 11,081,075 B2Granted
Display device
AssigneeSamsung Display Co., Ltd.
InventorsHyunwook Lee, Pilgyu Kang, Minchan Lee, Sungjin Lee, Chanyoung Lim, Solip Jeong
Life of this patent
Estimating the term…
Abstract
The present inventive concept is related to a display device in which a compensated voltage is applied to a gate line by compensating for a voltage drop of a voltage applied to the gate line.
Claims23
A display device comprising:
- a gate line and a data line, the gate line being insulated from the data line and receiving a gate line reference voltage;
- a switch including a gate electrode and a drain electrode commonly connected to one end of the gate line;
- and
- a gate line voltage compensator connected to a source electrode of the switch to receive a voltage-dropped gate line voltage for the gate line only when a voltage greater than a threshold voltage of the switch is applied to the gate electrode of the switch,
- wherein the gate line voltage compensator calculates a voltage compensation value for the gate line by calculating a difference between the gate line reference voltage and the voltage-dropped gate line voltage for the gate line, and
- wherein:
- the gate line is the longest gate line among a plurality of gate lines, and
- only the longest gate line among the plurality of the gate lines is selectively connected to the switch and the gate line voltage compensator.
5 more elements
A method of compensating for a gate line voltage, the method comprising:
- receiving a gate line reference voltage for a gate line;
- receiving a voltage that is voltage-dropped from the gate line reference voltage through a switch including a gate electrode and a drain electrode commonly connected to one end of the gate line;
- receiving the voltage-dropped voltage for the gate line from a source electrode of the switch only when a voltage greater than a threshold voltage of the switch is applied to the gate electrode of the switch;
- and
- calculating a voltage compensation value for the gate line by calculating a difference between the gate line reference voltage and the voltage-dropped voltage for the gate line,
- wherein:
- the gate line is the longest gate line among a plurality of gate lines, and only the longest gate line among the plurality of the gate lines is selectively connected to the switch and the gate line voltage compensator.
4 more elements
Dependencies are inferred from the claim text.