US 12,451,092 B2
Display apparatus
Nak-Yoon Kim, Gyeonggi-do (KR); Jong-Taek Kim, Gyeonggi-do (KR); and Ji-Yong Hwang, Gyeonggi-do (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd, Seoul (KR)
Filed on Dec. 11, 2023, as Appl. No. 18/535,707.
Claims priority of application No. 10-2022-0189147 (KR), filed on Dec. 29, 2022.
Prior Publication US 2024/0221700 A1, Jul. 4, 2024
Int. Cl. G09G 3/36 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/3618 (2013.01) [G09G 3/2037 (2013.01); G09G 2300/0876 (2013.01); G09G 2330/021 (2013.01); G09G 2360/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display panel in which pixels are arranged along a plurality of horizontal lines;
a data driving portion which converts image data of the pixels into data voltages and outputs the data voltages to the display panel;
a frame memory which receives and stores the image data of a refresh frame from a host;
a data processing portion which receives and image quality-processes the image data stored in the frame memory in a unit of one horizontal line, and transmits the image quality-processed image data to the data driving portion and the frame memory;
a first power switch which switches power of the data processing portion;
a first transfer switch which switches transmission path between the frame memory and the data driving portion;
a second transfer switch which switches transmission path between the frame memory and an input terminal of the data processing portion; and
a third transfer switch which switches transmission path between an output terminal of the data processing portion, and the data driving portion and frame memory,
wherein the frame memory updates and stores the image data of the horizontal line image quality-processed into a corresponding horizontal line therein, and
wherein image data of a nth refresh frame updated in the frame memory are transmitted to the data driving portion in a unit of one horizontal line when an image of a n+1th refresh frame is identical to an image of the nth refresh frame.