Patent ID: 11862070
Assignee: LAPIS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A display device comprising:
a display panel which includes a plurality of source lines and a plurality of gate lines and a plurality of pixel units respectively provided in a matrix shape at intersection portions of the plurality of source lines and the plurality of gate lines; and
a source driver which receives a video data signal including a series of pixel data pieces and outputs a gradation voltage to be applied to the plurality of pixel units based on the video data signal,
wherein the source driver includes:
a first gradation voltage generation unit which generates a gradation voltage of a first polarity to be supplied to a pixel on a first source line of the plurality of source lines,
a first amplifier which receives an input of the gradation voltage of the first polarity to an input end, amplifies the gradation voltage of the first polarity, and outputs a voltage from an output end,
a second gradation voltage generation unit which generates a gradation voltage of a second polarity corresponding to a polarity opposite to the first polarity to be supplied to a pixel on a second source line corresponding to a source line provided in the vicinity of the first source line,
a second amplifier which receives an input of the gradation voltage of the second polarity to an input end, amplifies the gradation voltage of the second polarity, and outputs a voltage from an output end, and
a voltage comparison unit which compares a voltage of the input end of the second amplifier with a voltage of the output end of the second amplifier and outputs a comparison result.