US 11,721,256 B2
Flexible display device and method of driving the flexible display device
Dale Yim, Yongin-si (KR); and Wonbok Lee, Seongnam-si (KR)
Assigned to Samsung Display Co., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Mar. 1, 2022, as Appl. No. 17/684,347.
Claims priority of application No. 10-2021-0055103 (KR), filed on Apr. 28, 2021.
Prior Publication US 2022/0351657 A1, Nov. 3, 2022
Int. Cl. G09G 3/00 (2006.01); G06T 7/90 (2017.01)
CPC G09G 3/035 (2020.08) [G06T 7/90 (2017.01); G06T 2207/10024 (2013.01); G09G 2310/0275 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0686 (2013.01); G09G 2340/06 (2013.01); G09G 2360/16 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A flexible display device comprising:
a flexible display panel having a first display area that is adjacent to a first end of the flexible display panel and a second display area that is adjacent to a second end of the flexible display panel;
a data driver configured to output a data voltage to the flexible display panel; and
a driving controller configured to control the data driver, the driving controller including a YCbCr converter configured to convert input RGB data included in input image data into input YCbCr data, and an image processor 220 configured to receive the input YCbCr data and to compensate for a luminance and a color difference of the input YCbCr data to generate output YCbCr data for displaying the second image in the second display area that compensates for the first image;
wherein a second image displayed in the second display area is a compensation image that compensates for a luminance and a color difference of the first image displayed in the first display area, and
wherein the image processor is further configured to:
calculate a first effective constant and a second effective constant based on input luminance data included in the input YCbCr data;
calculate a first luminance parameter and a second luminance parameter by using a look-up table for defining a relation between the first effective constant and the first luminance parameter and a relation between the first effective constant and the second luminance parameter;
calculate a luminance compensation parameter based on the first luminance parameter and the second luminance parameter; and
calculate output luminance data based on the luminance compensation parameter and a luminance weight.