公开(公告)号：US20230005425A1

公开(公告)日：2023-01-05

申请号：US17854776

申请日：2022-06-30

Applicant: LG Display Co., Ltd.

Inventor： MinKi KIM ,  JinSung KIM ,  JinCheol HONG

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3283

Abstract: A display device can include a display panel having sub pixels configured to emit light of different colors, a data driver configured to output a data voltage to the sub pixels via data lines, and a timing controller configured to output power control signals for controlling a driving current which drives the data driver. The data driver can include source driving integrated circuits, each including power control circuits configured to generate the driving current in accordance with each of the power control signals, and amplifiers configured to be applied with the driving current to output the data voltage to each of the data lines.

公开(公告)号：US20220059017A1

公开(公告)日：2022-02-24

申请号：US17392876

申请日：2021-08-03

Applicant: LG Display Co., Ltd.

Inventor： ManGyu PARK ,  JinCheol HONG

IPC: G09G3/32 ,  H04L7/033 ,  H04L7/04

Abstract: A display is disclosed where in an optimization mode, the controller transmits a first lock signal having a pulse waveforms to a first source driver circuit among source driver circuits, receives a second lock signal having pulse waveforms from a last source driver circuit that receives the first lock signal, and transmits phase loop fixed data for recovering a frequency and a phase of a clock to each of the source driver circuits when the second lock signal is received, and in the display mode, the controller transmits a first lock signal having a preset voltage level to the first source driver circuit, receives a second lock signal having a plurality of preset voltage levels from a last source driver circuit, and supplies an image signal and control data to each of the source driver circuits when the second lock signal is received.