公开(公告)号：US20250037622A1

公开(公告)日：2025-01-30

申请号：US18633449

申请日：2024-04-11

Applicant: Samsung Display Co., LTD. ,  UIF (University Industry Foundation), Yonsei University

Inventor： HYUNGSUK HWANG ,  YOURA KIM ,  HYOSUN KIM ,  Cheong Il KIM ,  Jeong Hyeon PARK ,  Sang Chul CHONG ,  Ji Eun CHO ,  Jeung Hwan CHOI

IPC: G09G3/00

Abstract: A display device includes a driving frequency calculator configured to divide output image data into central, intermediate, and peripheral images respectively corresponding to central, intermediate, and peripheral visual field regions, calculate spatial frequencies of the central image, the intermediate image, and the peripheral image, calculate critical flicker frequencies of the central visual field region, the intermediate visual field region, and the peripheral visual field region based on the spatial frequencies and based on viewing angles of the central visual field region, the intermediate visual field region, and the peripheral visual field region, and determine driving frequencies of the central visual field region, the intermediate visual field region, and the peripheral visual field region based on the critical flicker frequencies, and a display panel configured to display an image based on the output image data and based on the driving frequencies.

公开(公告)号：US20220230570A1

公开(公告)日：2022-07-21

申请号：US17504975

申请日：2021-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： YOUNG-JUN SEO ,  HYOSUN KIM ,  YONGWOO YI ,  YOURA KIM

IPC: G09G3/20

Abstract: A transparent display device includes a transparent display panel which displays an image, a scan driver which provides a scan signal to the transparent display panel, a data driver which converts image data into a data signal based on an application gamma curve, and which provides the data signal to the transparent display panel, a timing controller which controls the scan driver and the data driver, a luminance value compensator which calculates a perception luminance of the transparent display panel based on a luminance of incident light that is incident on the transparent display panel and a transmittance of the transparent display panel, and a gamma curve adjuster which adjusts the application gamma curve based on a reference gamma value of a reference gamma curve and the perception luminance of the transparent display panel.

公开(公告)号：US20240404453A1

公开(公告)日：2024-12-05

申请号：US18585058

申请日：2024-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNGSUK HWANG ,  YOURA KIM ,  HYOSUN KIM

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3275

Abstract: A display device includes a display panel that emits light in response to a panel driving signal, a panel driver that provides the panel driving signal to the display panel, and a driving controller that receives an image signal at a current frame rate and controls driving of the panel driver based on the image signal and a control signal. The driving controller includes a comparing unit that compares a reference frame rate and the current frame rate and outputs a duty control signal when the current frame rate is less than the reference frame rate, a duty control unit that controls a current duty ratio of a current emission period of the display panel based on the duty control signal, and a luminance control unit that controls luminance of each of the pixels based on the current duty ratio.

公开(公告)号：US20240274060A1

公开(公告)日：2024-08-15

申请号：US18423665

申请日：2024-01-26

Applicant: Samsung Display Co., LTD. ,  UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： HYOSUN KIM ,  Oh-Sang KWON ,  SEONGGYU CHOE ,  CHANG YEONG HAN ,  MIN-KYUNG KIM ,  YOURA KIM ,  HYUNGSUK HWANG ,  EUNJUNG LEE

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/2096 ,  G09G3/2007 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/028 ,  G09G2340/0435

Abstract: A display device includes: a display panel including a plurality of pixels; and a panel driver that drives the display panel at a target refresh rate different from a previous refresh rate. The panel driver includes: a comparator which compares a difference value between the previous refresh rate and the target refresh rate with a reference value generated by multiplying the previous refresh rate by a predetermined reference percentage; and a determiner which determines a final count of at least one compensation frame to be inserted between a previous driving frame operating at the previous refresh rate and a target driving frame operating at the target refresh rate when the difference value is not less than the reference value, where the final count is a total number of the at least one compensation frame, and a natural number.