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公开(公告)号：US11200827B2
公开(公告)日：2021-12-14
申请号：US16429830
申请日：2019-06-03
Inventor： Wenchao Bao , Xiaolong Wei , Dongxu Han
Abstract: A chromaticity compensation method, a chromaticity compensation device and a storage medium are disclosed. The chromaticity compensation method includes that, according to a preset standard chromaticity value and measured chromaticity values corresponding to a plurality of sub-display regions in a display region, chromaticity compensation values of the sub-display regions are determined, and the display region is divided into the plurality of sub-display regions in close arrangement, and each of the sub-display regions includes a plurality of sub-pixels; a data smoothing treatment is performed between the chromaticity compensation values of the sub-display regions that are adjacent, so as to determine the smoothed chromaticity compensation values of the sub-pixels in the sub-display regions; and upon display, chromaticity compensation of the sub-pixels are performed by adopting the smoothed chromaticity compensation values.
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公开(公告)号：US20210225246A1
公开(公告)日：2021-07-22
申请号：US16772312
申请日：2020-02-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Chi Zhang , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Jinxia Hu
IPC: G09G3/20 , G09G3/3208
Abstract: The present disclosure relates to a display method of a display panel, The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.
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公开(公告)号：US10235943B2
公开(公告)日：2019-03-19
申请号：US15220002
申请日：2016-07-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Guangcai Yuan , Yongqian Li
IPC: G09G3/3291 , G09G3/3258 , G09G3/3266 , G09G3/3225
Abstract: The present disclosure provides a display panel, its controlling method and a display device. The display panel includes a plurality of pixel units, a plurality of gate scanning lines arranged on a display substrate and a plurality of data lines arranged on the display substrate and crossing the gate scanning lines. Each pixel unit includes a data writing module, a driving module and a light-emitting element. The data writing module is configured to apply a data voltage to the driving module under the control of a current-level gate scanning signal, and the driving module is configured to drive the light-emitting element to emit light in accordance with the data voltage. The data writing modules of N adjacent pixel units in an identical row are connected to an identical data line, and N is an integer greater than 1. The data voltage across the data line is applied to the data writing modules of the N adjacent pixel units in a time-division manner under the control of the current-level gate scanning signal.
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公开(公告)号：US20180293952A1
公开(公告)日：2018-10-11
申请号：US15573948
申请日：2017-05-15
Inventor： Min He , Haixia Xu , Dongxu Han , Meng Li
IPC: G09G3/36 , H03K17/284
CPC classification number: G09G3/3677 , G09G2230/00 , G09G2300/0408 , G09G2310/08 , G11C19/28 , H03K17/284
Abstract: A gate integrated driving circuit for a display panel. The gate integrated driving circuit may comprise N reset circuits. For each of the N reset circuits, a first terminal thereof may be coupled to a reference signal terminal a second terminal thereof may be coupled to signal output terminals of a set of input and output circuits respectively, a third terminal thereof may be coupled to control terminals of driving circuits of the set of input and output circuits respectively, and a fourth terminal thereof may be coupled to a clock signal terminal coupled to input terminals of the driving circuits of the set of input and output circuits respectively. N may be an integer of at least 3. The set of input and output circuits may contain two or more input and output circuits.
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公开(公告)号：US12200989B2
公开(公告)日：2025-01-14
申请号：US17630171
申请日：2021-04-12
Inventor： Yongqian Li , Zhenhua Qiu , Ying Wang , Meng Li , Dongxu Han , Dacheng Zhang , Shi Sun
IPC: H10K59/131 , H10K50/86 , H10K59/12 , H10K59/121 , H10K71/00
Abstract: Provided in the present disclosure are a display substrate and a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, each display unit comprising a display area and a transparent area, and the display area comprising a plurality of sub-pixels; each sub-pixel comprises a second metal layer and a third metal layer, the second metal layer comprising a first scanning line and a second scanning line defining a display row, the third metal layer comprising a first power source line, a second power source line, a compensation line, and a data line defining the plurality of sub-pixels; the first power source line, the second power source line, the compensation line, and the data line all comprise a vertical linear section and a horizontal polyline section.
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Patent Agency Ranking
公开(公告)号：US11450267B2
公开(公告)日：2022-09-20
申请号：US16621937
申请日：2019-03-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Pan Xu , Jinxia Hu
IPC: G09G3/3225
Abstract: Brightness compensation method and apparatus for pixel point are provided. The compensation method includes measurement processes of N times, N≥2. Each measurement process includes: obtaining images displayed on the display screen under different gray-scale signals, and extracting brightness of pixel points in the images; calculating difference parameters between brightness of the pixel points and brightness of the reference pixel point under the different gray-scale signals; fitting the difference parameters of the pixel points with initial brightness of the pixel points under the different gray-scale signals, to obtain initial brightness-difference parameter curves of the pixel points; calculating compensation parameters of the pixel points; during an (i)th measurement process, i=2 to N, images displayed on the display screen under the different gray-scale signals are obtained by compensating the initial brightness of the pixel points under the different gray-scale signals based on the compensation parameters obtained during an (i−1)th measurement process.
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公开(公告)号：US10777134B2
公开(公告)日：2020-09-15
申请号：US16035891
申请日：2018-07-16
Inventor： Can Yuan , Yongqian Li , Zhenfei Cai , Zhidong Yuan , Dongxu Han
IPC: G09G3/3233 , H01L51/52 , H01L27/32 , G09G3/20 , G09G3/3258
Abstract: A detection method of a pixel circuit, a driving method of a display panel, a display device and a pixel circuit are provided. The pixel circuit includes a driving transistor, and the detection method includes a writing phase and a reading phase. The writing phase includes: writing a reference data voltage to a gate electrode of the driving transistor, and writing a first detection writing voltage to a first electrode of the driving transistor to turn on the driving transistor; and the reading phase includes: upon the driving transistor being turned off after a first predetermined time after writing the first detection writing voltage, reading a voltage of the first electrode of the driving transistor to obtain a first detection reading voltage for obtaining a threshold voltage of the driving transistor.
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公开(公告)号：US10403190B2
公开(公告)日：2019-09-03
申请号：US15975742
申请日：2018-05-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Fei Yang , Zhongyuan Wu , Yongqian Li , Tieshi Wang , Zhidong Yuan , Can Yuan , Chi Zhang , Yue Wu
IPC: G09G3/30 , G09G3/20 , G09G3/3208 , G09G5/10 , G09G3/00
Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.
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19.发明授权公开(公告)号：US10403187B2
公开(公告)日：2019-09-03
申请号：US15720038
申请日：2017-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Tieshi Wang , Pan Xu , Wenchao Bao , Chi Zhang , Zhongyuan Wu
Abstract: A gamma voltage debugging method for an electroluminescent display device, including: turning on sub-pixels in a test region to a maximum luminance value, and recording a driving current of an electroluminescent element at this time as a maximum reference current; calculating reference current values corresponding to respective gray scales according to the maximum reference current and a preset formula; and driving the sub-pixels in the test region to emit light, and for each driving current equal to a reference current value, recording a driving voltage value corresponding to the gray scale value as a gamma voltage resulted from the debugging.
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公开(公告)号：US20190027081A1
公开(公告)日：2019-01-24
申请号：US15975742
申请日：2018-05-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Fei Yang , Zhongyuan Wu , Yongqian Li , Tieshi Wang , Zhidong Yuan , Can Yuan , Chi Zhang , Yue Wu
IPC: G09G3/20 , G09G3/3208 , G09G5/10
CPC classification number: G09G3/2003 , G09G3/006 , G09G3/3208 , G09G5/10 , G09G2300/0452 , G09G2320/0242 , G09G2320/0626 , G09G2320/0666 , G09G2360/16
Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.
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