-
公开(公告)号：US12094404B2
公开(公告)日：2024-09-17
申请号：US17701615
申请日：2022-03-22
Inventor： Wenchao Bao , Song Meng , Min He , Huihui Li
IPC: G09G3/3225 , G02F1/1345 , G09G3/00 , G09G3/34 , G09G3/36 , H01L51/52 , H02M1/32 , H05B45/60 , H05K1/18 , H10K50/80
CPC classification number: G09G3/3225 , G09G3/006 , H05K1/189 , H10K50/868 , G09G2330/021 , H05K2201/10128
Abstract: A display module includes a display panel, a power supply driver, a voltage signal line, a sampling resistor and a detection and control circuit. The voltage signal line is connected between the display panel and the power supply driver. The sampling resistor is connected in series with the voltage signal line. The detection and control circuit is connected to two ends of the sampling resistor and the power supply driver. The detection and control circuit is configured to: detect a voltage across the sampling resistor or a current flowing through the sampling resistor; and control the power supply driver to generate a driving voltage equal to a preset value lower than a voltage threshold, if determining that the voltage across the sampling resistor is greater than or equal to the voltage threshold, or if determining that the current is greater than or equal to a current threshold.
-
公开(公告)号：US20220328006A1
公开(公告)日：2022-10-13
申请号：US17416561
申请日：2020-10-28
Inventor： Taejin Kim , Wenchao Bao
IPC: G09G3/3258
Abstract: The present disclosure provides a display device and a circuit and method for acquiring voltages, and belongs to the field of display technologies. The display device includes: a display panel including a plurality of sub-pixels and a plurality of sensing lines, each of the sub-pixels being connected to one of the sensing lines; a reference voltage providing circuit configured to provide a reference voltage; a sampling circuit electrically connected to the sensing lines and the reference voltage providing circuit, respectively, and configured to acquire a voltage on each sensing line to obtain a first sampling value, and acquire the reference voltage provided by the reference voltage providing circuit to obtain a second sampling value; and a processing circuit electrically connected to the sampling circuit, and configured to correct the first sampling value based on the second sampling value and the reference voltage.
-
Patent Agency Ranking
公开(公告)号：US11217202B2
公开(公告)日：2022-01-04
申请号：US16609429
申请日：2019-03-28
Inventor： Min He , Chun Cao , Wenchao Bao
Abstract: The present disclosure relates to a method for converting RGB image signals into RGBW image signals. The method includes converting RGB image signals of pixels of each received image frame into corresponding RGB luminance values respectively, performing a conversion from an RGB luminance value to an RGBW luminance value for each pixel, including performing a first conversion to the RGBW luminance value by determining a first conversion amount based on the corresponding RGB luminance value of the pixel to obtain a first RGBW luminance value of the pixel, performing a second conversion to the RGBW luminance value by determining a second conversion amount based on the first RGBW luminance values of the pixel and its adjacent one or more pixels to obtain a second RGBW luminance value of the pixel, and converting the second RGBW luminance values of the pixels of the image frame into corresponding RGBW image signals respectively.
-
公开(公告)号：US11205383B2
公开(公告)日：2021-12-21
申请号：US16343760
申请日：2018-11-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming Wang , Wenchao Bao
IPC: G09G3/3225 , G09G3/3233 , G09G3/3258 , G09G3/3266
Abstract: The present disclosure relates to a technical field of display, and provides a scan signal adjusting method, a scan signal adjusting device, and a display panel. The scan signal adjusting method is used to adjust a scan signal of a control end of a switching transistor in a pixel driving circuit. The method includes obtaining a threshold voltage of the switching transistor and adjusting a voltage of the scan signal during a turn-off period according to the threshold voltage of the switching transistor.
-
35.发明授权公开(公告)号：US11081052B2
公开(公告)日：2021-08-03
申请号：US15931926
申请日：2020-05-14
Inventor： Fei Yang , Xiaolong Wei , Wenchao Bao , Min He
IPC: G09G3/3258 , G09G3/3291
Abstract: A method for detecting a threshold voltage of a driving transistor includes: obtaining at least one first threshold voltage of at least one driving transistor when each driving transistor is driven by a corresponding first driving signal; obtaining a threshold reference voltage of the driving transistor according to the at least one first threshold voltage; obtaining a second driving signal of the driving transistor according to the threshold reference voltage and the first driving signal of the driving transistor, a value of the second driving signal being greater than a value of the first driving signal; and obtaining a second threshold voltage of the driving transistor when the driving transistor is driven by the second driving signal.
-
公开(公告)号：US20190164471A1
公开(公告)日：2019-05-30
申请号：US15983939
申请日：2018-05-18
Inventor： Haixia Xu , Wenchao Bao
IPC: G09G3/3208 , G09G3/20
CPC classification number: G09G3/3208 , G09G3/2007 , G09G3/2092 , G09G2320/041 , G09G2320/046 , G09G2320/0626 , G09G2320/0693 , G09G2360/16
Abstract: Embodiments of the present disclosure disclose a current control method and an apparatus thereof. The current control method includes: generating a correspondence between grayscale brightness and a current of a display panel; detecting, in a blank interval of a display period, an actual current value and an actual grayscale brightness of the display panel; determining a target current value by looking up a correspondence between the grayscale brightness and the current according to a target grayscale brightness of the display panel; and adjusting, based on a comparison of the actual current value and the target current value, the actual grayscale brightness so that the actual current value is less than or equal to the target current value.
-
公开(公告)号：US20180301100A1
公开(公告)日：2018-10-18
申请号：US15821149
申请日：2017-11-22
Inventor： Meng Li , Yongqian Li , Pan Xu , Zhenfei Cai , Zhidong Yuan , Can Yuan , Xuehuan Feng , Wenchao Bao
IPC: G09G3/36
Abstract: A display device, a gate driving circuit and a gate driving unit are provided. The gate driving unit includes: a signal maintenance circuit configured to, in the case that a first clock signal at a high level is received, output a high level in accordance with an inputted trigger signal at a high level; a first-level output circuit configured to, in the case that a second clock signal at a high level is received, output a first-level driving signal at a high level in accordance with the high level from an output end of the signal maintenance circuit; and a second-level output circuit configured to, in the case that a third clock signal at a high level is received, output a second-level driving signal at a high level in accordance with the high level from an output end of the first-level output circuit.
-
-
-
-
-
-
Search Results
37
records
(took 0.021 seconds)
