US 12,248,623 B2
Display device and method of driving the same
Tae Un Lee, Yongin-si (KR); Sung Hwan Park, Yongin-si (KR); and Chang Ho Hyun, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jul. 15, 2022, as Appl. No. 17/865,633.
Claims priority of application No. 10-2021-0111922 (KR), filed on Aug. 24, 2021.
Prior Publication US 2023/0069320 A1, Mar. 2, 2023
Int. Cl. G06F 3/01 (2006.01); G02B 27/01 (2006.01); G09G 3/20 (2006.01); G09G 3/32 (2016.01); G09G 3/3208 (2016.01)
CPC G06F 3/013 (2013.01) [G02B 27/017 (2013.01); G09G 3/2007 (2013.01); G02B 2027/0138 (2013.01); G09G 3/32 (2013.01); G09G 3/3208 (2013.01); G09G 2310/027 (2013.01); G09G 2310/08 (2013.01); G09G 2330/023 (2013.01); G09G 2354/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a visual sensor configured to generate visual sensing data by sensing an eye of a user;
a display panel including a display area and pixels disposed on the display area;
an image converter configured to generate a second image signal by converting a first image signal of the pixels based on the visual sensing data; and
a data driver configured to provide the pixels with data signals corresponding to the second image signal,
wherein the image converter generates visual information based on the visual sensing data, determines a viewing area which is visually recognized by the user and a non-viewing area other than the viewing area based on the visual information, and generates the second image signal by converting grayscales of the non-viewing area and not converting grayscales of the viewing area in the first image signal,
wherein the image converter includes:
a visual analyzer configured to generate first visual information corresponding to a line of sight of the user and second visual information corresponding to a viewing angle of the user based on the visual sensing data, the line of sight of the user being an extension line along a normal direction from a center of a pupil of the eye of the user in the visual sensing data; and
an area extractor configured to detect a size of a visual area corresponding to the viewing angle of the user based on the second visual information and generate area data corresponding to the size of the visual area,
wherein the size of the visual area is detected using a distance between the display area and a certain point at a retina of the eye of the user in which an image is focused, and the viewing angle of the user estimated from a size of the pupil of the eye of the user,
wherein the visual sensor generates the visual sensing data in each of a first frame and a second frame consecutive to the first frame when at least one of a change in size of the pupil of the user or a change in position of the pupil of the user is sensed, and generates the visual sensing data and provide the generated visual sensing data to the image converter in the first frame and does not provide the visual sensing data to the image converter in the second frame when neither of the change in size of the pupil of the user nor the change in position of the pupil of the user is sensed, and
wherein the image converter generates the second image signal corresponding to the first frame based on the visual sensing data generated in the first frame and generates the second image signal corresponding to the second frame based on the visual sensing data generated in one of the first and second frames.