-
公开(公告)号：US12112713B2
公开(公告)日：2024-10-08
申请号：US17321656
申请日：2021-05-17
Applicant: Elbit Systems Ltd.
Inventor： Yoav Ophir , Gil Benesh
CPC classification number: G09G3/3426 , G02B27/017 , G06F3/011 , G06F3/012 , G09G3/342 , G09G3/3648 , G02B2027/0187 , G09G2310/024 , G09G2320/0261 , G09G2320/0626 , G09G2354/00
Abstract: A head wearable device (HWD) suitable to be worn by a user, the HWD may include: a head tracker configured to track a line of sight (LOS) of the user; a near eye display (NED) comprising: a plurality of transistors groups forming a pixel array of said display, a plurality of backlight units, forming a backlight surface of said display; a backlight control module configured to dim the backlight units that spatially overlap one or more of the transistor groups whenever the data at said transistor groups is being refreshed and further configured to change at least one of: a frequency and a location of the dimmed backlight units; and a computer processor coupled to the tracker and the NED and configured to instruct the backlight control module to change at least one of: the frequency and the location of the dimmed backlight units, based on the user LOS.
-
公开(公告)号：US12106726B2
公开(公告)日：2024-10-01
申请号：US18180143
申请日：2023-03-08
Applicant: Qisda Corporation
Inventor： Min-Jye Chen
IPC: G09G3/34
CPC classification number: G09G3/342 , G09G2320/0261 , G09G2320/064
Abstract: A display device is provided. The display device includes a display panel, a scaler integrated circuit, and a backlight device. The backlight device includes N light zones for providing a backlight to the display panel, wherein N is a positive integer. The backlight device lights each of the N light zones in a time-sharing manner in each of a plurality of scan periods. Each of the scan periods has a time length greater than or equal to a time length of a video active data period of the display panel. A continuous lighting time length of each of the N light zones is less than or equal to a quotient of the time length of the video active data period divided by N.
-
公开(公告)号：US20240304157A1
公开(公告)日：2024-09-12
申请号：US18665581
申请日：2024-05-16
Applicant: Beijing Xianxin Technology Co., Ltd
Inventor： Honam YIM , Youngjin LIM , Chenghui YAN
CPC classification number: G09G3/342 , G09G3/36 , G09G2320/0257 , G09G2320/064
Abstract: Provided are a backlight control method, a device, and a storage medium, where the method includes: acquiring a dimming image corresponding to a display frame sent by a controller, the dimming image matching a display image on a liquid crystal panel; splitting, according to the dimming image, one display frame into a plurality of dimming control frames to control LEDs in a backlight module; where an image corresponding to each dimming control frame is composed of a black image and a partial dimming image which are spliced, and in the plurality of dimming control frames, positions of black images move in a preset direction.
-
公开(公告)号：US12067949B2
公开(公告)日：2024-08-20
申请号：US18064392
申请日：2022-12-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Katsuhiko Sato
Abstract: In order to provide an optical apparatus capable of adjusting a light amount in each of a plurality of optical systems with a simple structure, the optical apparatus according to the present invention includes a plurality of optical systems each of which includes a stop, a storing unit configured to store information indicating a relationship between target aperture diameters of the stop and target light amounts in the respective optical systems, and a controller configured to adjust a light amount by changing an aperture diameter of the stop in the respective optical systems based on the information.
-
公开(公告)号：US12057080B2
公开(公告)日：2024-08-06
申请号：US18086529
申请日：2022-12-21
Applicant: Joulwatt Technology Co., Ltd.
Inventor： Pitleong Wong , Duo Li
CPC classification number: G09G3/342 , G09G3/2096 , G09G3/3685 , G09G3/36 , G09G2320/0626 , G09G2330/026
Abstract: A light source driving circuit and a communication device for display system are provided. The communication device includes a control unit and at least one string light source driving circuit. The control unit includes an output interface for transmitting control commands or data and a data reading back input interface. Each string light source driving circuit includes a plurality of light source driving circuits, and each light source driving circuit interface includes a serial input interface, a serial output interface, parallel interfaces, and at least one current output interface. The serial input interface and serial output interface of the plurality of light source driving circuits are cascaded with each other as a first channel of the control commands or data transmission. The parallel interfaces of each driving circuit in the plurality of driving circuits are coupled with each other as a second channel of the control commands and data transmission.
-
Patent Agency Ranking
公开(公告)号：US12057053B2
公开(公告)日：2024-08-06
申请号：US17280258
申请日：2021-03-12
Inventor： Xiong Hu , Yu Wu , Guangxing Xiao
CPC classification number: G09G3/2096 , G09G3/32 , G09G3/342 , G09G2320/045 , G09G2320/064
Abstract: A method of preventing a backlight module from overheating and a display device are provided. The method can prevent backlight partitions from having a long-time high-brightness operation and causing the backlight module to overheat by obtaining a driving current of each backlight partition in the backlight module, judging whether a brightness of each backlight partition in the backlight module exceeds a reference brightness, and adjusting the brightness of each backlight partition that exceeds the reference brightness to a target brightness.
-
公开(公告)号：US20240257771A1
公开(公告)日：2024-08-01
申请号：US18139983
申请日：2023-04-27
Inventor： Xinhong CHEN , Yun ZHANG , Ling XU
CPC classification number: G09G3/342 , G09G3/2007 , G09G3/2092 , G09G2310/08 , G09G2320/0247 , G09G2340/16
Abstract: A backlight driving method is provided. The method includes: determining a first duration of a first active pulse phase in a backlight driving signal corresponding to a target frame of a to-be displayed picture in a display panel, based on a target duty ratio and a first period corresponding to a target previous frame; wherein the target previous frame is a frame preceding the target frame, and the backlight driving signal is configured to drive a backlight of the display panel; and determining a second duration based on a maximum period corresponding to a frame at a lowest refresh frequency of the display panel and the first period, to delay a start time of the first active pulse phase based on the second duration.
-
公开(公告)号：US12046213B2
公开(公告)日：2024-07-23
申请号：US17869000
申请日：2022-07-20
Applicant: Japan Display Inc.
Inventor： Kazunari Tomizawa , Tadafumi Ozaki
IPC: G09G3/34 , G02F1/13357 , G09G3/36
CPC classification number: G09G3/3677 , G02F1/1336 , G09G3/3406 , G09G3/342 , G09G3/3426 , G09G2310/024 , G09G2310/08 , G09G2320/0252
Abstract: A display device includes: a display panel with pixel rows; a light source device having light emission regions; and a controller configured to control light emission of the light emission regions. A second period is shorter than a first period. The first period is a period from a drive timing of one or more pixel rows that are driven first to a drive timing of one or more other pixel rows that are driven last. The second period is a period from a light emission timing of one or more light emission regions that emit light first to a light emission timing of one or more other light emission regions that emit light last. The light emission timing of the one or more light emission regions that emit light first is different from the light emission timing of the one or more other light emission regions that emit light last.
-
9.发明授权公开(公告)号：US12039944B2
公开(公告)日：2024-07-16
申请号：US17639166
申请日：2021-04-26
Inventor： Shou Li , Hengyu Yan , Wenyu Li , Zhiming Meng , Jian Zhang , Zhanchang Bu
IPC: G09G3/34
CPC classification number: G09G3/342 , G09G2370/00
Abstract: The present disclosure provides a backlight data transmission method including: receiving, in response to a first vertical synchronization signal of a current image frame sent from a logic circuit board, an entire of backlight data sent from the logic circuit board during a first preset time period, where the entire backlight data includes backlight data corresponding to backlight regions, and duration of the first preset time period is longer than duration of the first vertical synchronization signal in an active level state during one period; and sending the entire backlight data to a backlight driving module during a second preset time period after the first preset time period, where a sum of the duration of the first preset time period and duration of the second preset time period is less than a period of the first vertical synchronization signal.
-
公开(公告)号：US20240201548A1
公开(公告)日：2024-06-20
申请号：US18397437
申请日：2023-12-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hajime Kimura
IPC: G02F1/1362 , G02F1/1333 , G02F1/1335 , G02F1/1337 , G02F1/1343 , G02F1/1368 , G09G3/20 , G09G3/34 , G09G3/36 , H01L27/12 , H04N9/31
CPC classification number: G02F1/136286 , G02F1/133345 , G02F1/1337 , G02F1/134363 , G02F1/1362 , G02F1/136277 , G02F1/1368 , G09G3/20 , G09G3/3659 , H01L27/1214 , H01L27/1218 , H04N9/3102 , G02F1/133553 , G02F1/134372 , G02F1/136231 , G09G3/342 , G09G3/3685 , G09G2300/0876 , G09G2310/0235 , G09G2310/024 , G09G2310/027 , G09G2310/0275 , G09G2310/0297 , G09G2320/0233 , G09G2320/0252 , G09G2320/0261 , G09G2320/106 , G09G2340/0435 , G09G2340/16 , G09G2352/00
Abstract: To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.
-
-
-
-
-
-
-
-
-
Search Results
1961
records
(took 0.045 seconds)
