US 11,854,463 B2
Data driving integrated circuit and method of driving the same
Jae Uk Jeon, Daejeon (KR); Man Jeong Ko, Daejeon (KR); Byung Seob Song, Daejeon (KR); and Jung Bae Yun, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by LX Semicon Co., Ltd., Daejeon (KR)
Filed on Jun. 10, 2022, as Appl. No. 17/837,784.
Claims priority of application No. 10-2021-0076541 (KR), filed on Jun. 14, 2021.
Prior Publication US 2022/0398972 A1, Dec. 15, 2022
Int. Cl. G09G 3/22 (2006.01); H03M 1/66 (2006.01)
CPC G09G 3/22 (2013.01) [H03M 1/66 (2013.01); G09G 2310/0243 (2013.01); G09G 2330/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A data driving integrated circuit comprising:
a digital to analog converter (DAC) configured to change a digital signal into an analog signal; and
an amplifier configured to generate a data voltage through a folded cascode gain circuit and an inverting gain circuit by using the analog signal received through an input terminal of the amplifier and to output the data voltage through an output terminal,
wherein the folded cascode gain circuit receives, as feedback, one of a plurality of output voltages from a plurality of output terminals of the amplifier, and
the inverting gain circuit receives an output signal of the folded cascode gain circuit and changes an output signal from a multiplexer, which is transferred to a transistor connected to an output terminal of the amplifier through the multiplexer disposed in the inverting gain circuit.