Patent ID: 11967295
Assignee: LAPIS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The display driver according to claim 2, wherein the conversion part comprises first to n-th conversion blocks that individually receives the first to n-th display data pieces and outputs the first to n-th gradation voltages,
wherein the first to n-th conversion blocks each comprise:
a positive conversion circuit which converts the display data piece into a positive gradation voltage having a positive voltage value corresponding to the brightness level;
a negative conversion circuit which converts the display data piece into a negative gradation voltage having a negative voltage value corresponding to the brightness level; and
a second selector which receives the positive gradation voltage and the negative gradation voltage, and outputs one of the positive gradation voltage and the negative gradation voltage as the gradation voltage according to the signal output by the first selector.