US 12,431,060 B2
Display apparatus and a method of driving a display panel using the same
Hun-Bae Kim, Asan-si (KR); Garam Kim, Suwon-si (KR); Yong-Gu Kang, Hwaseong-si (KR); and Jihoon Kim, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 15, 2022, as Appl. No. 17/887,663.
Claims priority of application No. 10-2021-0156888 (KR), filed on Nov. 15, 2021.
Prior Publication US 2023/0154380 A1, May 18, 2023
Int. Cl. G09G 3/20 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/2096 (2013.01) [G09G 3/2007 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display panel comprising an emission fine and a pixel electrically connected to the emission line;
an emission driver configured to output an emission signal to the emission line; and
a driving controller configured to determine a light emission cycle, wherein the light emission cycle is a number of light emissions in a single frame of the emission signal,
wherein the driving controller is configured to determine the light emission cycle according to a driving mode including a first mode and a second mode different from the first mode, a driving frequency including a first frequency and a second frequency greater than the first frequency and a luminance including a high luminance range, a middle luminance range and a low luminance range and to determine an off ratio, wherein the off ratio is a ratio of turned-off gate lines to a total number of the gate lines,
wherein the first mode is a normal speed mode in which the display panel is driven in a fixed driving frequency which is the first frequency and the second mode is a high speed mode in which the display panel is driven in varied driving frequencies which are the first frequency and the second frequency,
wherein the driving controller is configured to determine the off ratio dynamically in real-time based on a luminance level detected from user-defined luminance settings and grayscale values of input image data, such that the off ratio determination is adjusted dynamically without retrieving predefined values from a stored table,
wherein the driving controller is configured to determine a first light emission cycle corresponding to the first mode, the first frequency and the high luminance range, a second light emission cycle corresponding to the first mode, the first frequency and the middle luminance range and a third light emission cycle corresponding to the first mode, the first frequency and the low luminance range,
wherein the driving controller is configured to determine a fourth light emission cycle corresponding to the second mode, the first frequency and the high luminance range, a fifth light emission cycle corresponding to the second mode, the first frequency and the middle luminance range and a sixth light emission cycle corresponding to the second mode, the first frequency and the low luminance range, and
wherein the driving controller is configured to determine a seventh light emission cycle corresponding to the second mode, the second frequency and the high luminance range, an eighth light emission cycle corresponding to the second made, the second frequency and the middle luminance range and a ninth light emission cycle corresponding to the second mode, the second frequency and the low luminance range.