公开(公告)号：US20250014495A1

公开(公告)日：2025-01-09

申请号：US18705477

申请日：2021-12-29

Applicant: Sharp Display Technology Corporation

Inventor： Masamitsu KOBAYASHI ,  Takafumi MIURA

IPC: G09G3/20

Abstract: A display device is configured to divide one frame into a first-half sub-frame and a second-half sub-frame and display an image in each of the first-half sub-frame and the second-half sub-frame. The display device includes a pixel-of-interest specifying unit, a first peripheral pixel specifying unit, a first difference coefficient determination unit, a first coefficient determination unit, a first pixel value determination unit, a second peripheral pixel specifying unit, a second difference coefficient determination unit, a second coefficient determination unit, and a second pixel value determination unit. As a first coefficient and a second coefficient equal to each other are larger, a difference between an output pixel value corresponding to an input pixel value in a first conversion data and an output pixel value corresponding to the identical input pixel value in a second conversion data is larger.

公开(公告)号：US20220189420A1

公开(公告)日：2022-06-16

申请号：US17529912

申请日：2021-11-18

Applicant: Sharp Display Technology Corporation

Inventor： Masamitsu KOBAYASHI ,  Takafumi MIURA ,  Masafumi YASHIKI

IPC: G09G3/34 ,  G09G3/36

Abstract: An image display apparatus includes a display panel including multiple pixels, a backlight including multiple white-light light sources, a panel driving circuit, a backlight driving circuit, and a determination circuit determining image data. The white-light light sources have characteristics that cause afterglow of a particular color to persist longer than afterglow of another color. The backlight driving circuit segments the backlight into multiple areas and drives the backlight such that a time duration of performing control to cause the areas to sequentially be in a light-emission state at mutually different timings alternates with a time duration of performing control to cause all the areas to be in a non-light-emission state. The determination circuit determines a determination value indicating a degree of inclusion at which achromatic data is included in the image data and determines a light-emission start timing of each of the areas in accordance with the determination value.

公开(公告)号：US20240428743A1

公开(公告)日：2024-12-26

申请号：US18658339

申请日：2024-05-08

Applicant: Sharp Display Technology Corporation

Inventor： Takafumi MIURA ,  Masamitsu KOBAYASHI

IPC: G09G3/34 ,  G02B27/02 ,  G02F1/1335 ,  G02F1/13357

Abstract: A display device includes a controller configured to generate second image data from first image data, cause a display panel to display a first image based on a first image data and a second image based on a second image data in a time division manner, switch a polarization module to a first polarization state when the first image is displayed and to a second polarization state when a second image is displayed in synchronization with a timing of the time division, and control a backlight to turn off the backlight for a predetermined period from a start of a display period during which the first or second image is displayed on the display panel and then turn on the backlight.

公开(公告)号：US20240427166A1

公开(公告)日：2024-12-26

申请号：US18639362

申请日：2024-04-18

Applicant: Sharp Display Technology Corporation

Inventor： Masamitsu KOBAYASHI ,  Takafumi MIURA

IPC: G02B30/25 ,  G02F1/1335

Abstract: A display device includes a display, a polarization module placed overlapping the display, the polarization module being configured to actively switch a polarization state between a first polarization state and a second polarization state, and a controller. The controller is configured to generate second image data from first image data, cause the display to display a first image based on the first image data and a second image based on the second image data in a time division manner, and switch the polarization state of the polarization module to the first polarization state in a case in which the first image is displayed and to the second polarization state in a case in which the second image is displayed in synchronization with a timing of the time division.