公开(公告)号：US11348552B2

公开(公告)日：2022-05-31

申请号：US16608417

申请日：2019-01-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song

IPC: G09G5/02 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3208 ,  G06K9/62 ,  G06V10/40

Abstract: A method for determining a data processing sequence, for determining a selected color in a plurality of colors display by subpixels included in each pixel of a display apparatus, and the method comprising: determining, according to grayscale values of subpixels of candidate colors in a plurality of pixels included in a plurality of frames of images displayed in a current detection cycle, a usage level representative value of each candidate color in the current detection cycle; and selecting one of the candidate colors as a selected color of a next detection cycle according to detection sequence determining parameters, the detection sequence determining parameters including the usage level representative value of each candidate color in the current detection cycle. By this method, the subpixels of colors with large usage level representative values may be detected and compensated in time.

公开(公告)号：US11308889B2

公开(公告)日：2022-04-19

申请号：US16329352

申请日：2018-08-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song ,  Yi Cheng Lin ,  Pan Xu ,  Zhongyuan Wu

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/00

Abstract: A detection method of a pixel circuit, a driving method of a display panel, and a display device are disclosed. The pixel circuit includes a driving transistor; and the detection method of the pixel circuit includes: in the first charge cycle, applying a first data voltage to a gate electrode of the driving transistor, acquiring a first sensing voltage at a first electrode of the driving transistor within the first duration after the application of the first data voltage and before the driving transistor is switched off, and determining whether the first sensing voltage is equal to reference sensing voltage.

公开(公告)号：US10573242B2

公开(公告)日：2020-02-25

申请号：US15822495

申请日：2017-11-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Danna Song

IPC: G09G3/3258 ,  H01L27/12 ,  G09G3/3233 ,  G09G3/3291 ,  H01L27/32

Abstract: The present disclosure provides a display device and a pixel compensation method. The display device includes a display panel and a driver circuit. The display panel includes a plurality of pixel units, and any two subpixels of each pixel unit are connected to the driver circuit through a compensation circuit. The driver circuit is configured to acquire a compensation voltage of each subpixel through the compensation circuit, and compensate for a voltage applied to the subpixel in accordance with the compensation voltage.

公开(公告)号：US10204557B2

公开(公告)日：2019-02-12

申请号：US15307611

申请日：2016-01-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song ,  Zhongyuan Wu ,  Szu Heng Tseng ,  Song Meng

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3233

Abstract: An Active-Matrix Organic Light Emitting Diode (AMOLED) display apparatus and a brightness compensation method thereof are provided. At an initial compensation stage, a display screen can be subjected to brightness calibration by an image sensor so as to acquire a data voltage compensation value of each sub-pixel when a brightness value of a display panel equals a preset value, a first data voltage is output to a corresponding pixel circuit according to the data voltage compensation value of each sub-pixel, a sensed voltage of each sub-pixel at this stage is used as an initial reference voltage of each sub-pixel when the brightness value of the display panel equals the preset value; and at a subsequent compensation stage, by regulating a data voltage of each sub-pixel, the sensed voltage of each sub-pixel is made to be equal to the corresponding initial reference voltage when the brightness value of the display panel equals the preset value, so as to achieve uniform compensation on brightness of each sub-pixel at the subsequent compensation stage. Thus, not only are uniformity and accuracy of initial brightness compensation improved, but also pixel aging is accurately compensated and uniformity and accuracy of subsequent compensation are improved.

公开(公告)号：US09881554B2

公开(公告)日：2018-01-30

申请号：US14907448

申请日：2015-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Song Meng ,  Danna Song

IPC: G09G3/32 ,  G09G3/3258 ,  G09G3/20

CPC classification number: G09G3/3258 ,  G09G3/2014 ,  G09G2310/08 ,  G09G2360/16

Abstract: Embodiments of the present disclosure relate to a technical field of display technology, and provide a driving method for a pixel circuit and a driving device thereof. A problem of cost increase can be solved which is caused by an increase in a number of storages when adjustment is made by way of Gamma curve and table lookup, by means of the technical solutions according to embodiments of the present disclosure. The driving method of the pixel circuit includes acquiring brightness information of a display screen in a light-emitting phase (S101); determining a duty cycle of a pulse signal according to the brightness information (S102); inputting a high level to the first voltage terminal, and inputting the pulse signal with the duty cycle to a gate of the first switching transistor by the first gate line (S103).

公开(公告)号：US20170053590A1

公开(公告)日：2017-02-23

申请号：US15022359

申请日：2015-08-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song ,  Zhongyuan Wu ,  Junjie Lin ,  Cuili Gai ,  Lirong Wang ,  Chen Song ,  Szuheng Tseng

IPC: G09G3/3225 ,  G01R19/165

CPC classification number: G09G3/3225 ,  G01R19/1659 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045

Abstract: The disclosure provides a detection circuit, a detection method and a drive system. The detection circuit comprises a switching unit, a reset unit and a comparison unit. The switching unit is used for switching the operations of the reset unit and the comparison unit. The reset unit is used for resetting the acquisition unit before the acquisition unit begins acquisition. The comparison unit is used for comparing a signal acquired by the acquisition unit with a standard signal to obtain a characterization quantity of the to-be-detected voltage.

Abstract translation: 本公开提供了检测电路，检测方法和驱动系统。 检测电路包括开关单元，复位单元和比较单元。 切换单元用于切换复位单元和比较单元的操作。 复位单元用于在采集单元开始采集之前复位采集单元。 比较单元用于将由采集单元获取的信号与标准信号进行比较，以获得待检测电压的表征量。

公开(公告)号：US09437139B2

公开(公告)日：2016-09-06

申请号：US14362004

申请日：2013-10-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song ,  Liye Duan ,  Zhongyuan Wu ,  Cuili Gai

IPC: G09G5/10 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2310/0248 ,  G09G2310/0291 ,  G09G2320/0242 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2330/028

Abstract: A pixel driving current extracting apparatus and a pixel driving current extracting method, the pixel driving current extracting apparatus comprises driving current extracting circuits corresponding to pixel driving circuits for respective colors respectively. Each of the driving current extracting circuits comprises a driving current amplifying and converting unit connected to the pixel driving circuit, for amplifying and converting a driving current of the pixel driving circuit into a voltage signal. A driving current computing unit connected to the driving current amplifying and converting unit is used for computing a pixel driving current according to the voltage signal. An amplification ratio of the driving current amplifying and converting unit in the driving current extracting circuits corresponding to the pixel driving circuits for respective colors is inversely proportional to a magnitude of the pixel driving current for respective colors. The pixel driving currents for respective colors are extracted uniformly and amplified properly without being distorted, thereby providing a well data support for the subsequent signal processing.

Abstract translation: 像素驱动电流提取装置和像素驱动电流提取方法，像素驱动电流提取装置包括分别对应于各个颜色的像素驱动电路驱动电流提取电路。 每个驱动电流提取电路包括连接到像素驱动电路的驱动电流放大和转换单元，用于将像素驱动电路的驱动电流放大并转换为电压信号。 连接到驱动电流放大和转换单元的驱动电流计算单元用于根据电压信号计算像素驱动电流。 与各颜色的像素驱动电路对应的驱动电流提取电路中的驱动电流放大和转换单元的放大率与各种颜色的像素驱动电流的大小成反比。 各颜色的像素驱动电流被均匀提取并被正确地放大而不会失真，从而为随后的信号处理提供良好的数据支持。

公开(公告)号：US20160013256A1

公开(公告)日：2016-01-14

申请号：US14437120

申请日：2014-03-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Baoxia Zhang

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3248 ,  G09G3/32 ,  H01L51/56

Abstract: An active matrix organic light-emitting diode array substrate, a manufacturing method thereof and a display device including the same are disclosed to improve the aperture ratio of pixel of the array substrate and the display quality of the display device. The array substrate includes: a substrate; and a plurality of pixel units located on the substrate and arranged in array manner, each of the pixel units comprising a thin film transistor, a first transparent electrode, a second transparent electrode and a gate insulation layer provided between the first transparent electrode and the second transparent electrode. The first transparent electrode is provided on the substrate and is electrically connected to a gate of the thin film transistor; and the second transparent electrode is electrically connected to a drain of the thin film transistor, and the second transparent electrode is positioned opposite to the first transparent electrode to form a storage capacitor of the pixel unit therebetween.

Abstract translation: 公开了一种有源矩阵有机发光二极管阵列基板及其制造方法及其显示装置，以提高阵列基板的像素的开口率和显示装置的显示质量。 阵列基板包括：基板; 以及多个像素单元，位于所述基板上并且以阵列方式布置，所述每个像素单元包括薄膜晶体管，第一透明电极，第二透明电极和设置在所述第一透明电极和所述第二透明电极之间的栅极绝缘层 透明电极。 第一透明电极设置在基板上，并且电连接到薄膜晶体管的栅极; 并且所述第二透明电极电连接到所述薄膜晶体管的漏极，并且所述第二透明电极位于与所述第一透明电极相对的位置，以形成所述像素单元的存储电容器。

公开(公告)号：US10510290B2

公开(公告)日：2019-12-17

申请号：US15038362

申请日：2015-12-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Danna Song ,  Zhongyuan Wu ,  Song Meng ,  Cuili Gai

IPC: G09G3/3225

Abstract: The present invention provides a display apparatus with display screen burn-ins prevention functions, comprising a calculation module configured to identify a set of to-be-adjusted grayscale edge pixels corresponding to a static display part in a detection area based on a plurality of sets of grayscale edge pixels identified from a plurality of images in the detection area at different time instances; a determination module configured to determine whether the set of to-be-adjusted grayscale edge pixels is an empty set; and an adjustment module configured to adjust intensity levels of the to-be-adjusted grayscale edge pixels when the determination module determines that the set of to-be-adjusted grayscale edge pixels is not an empty set.

公开(公告)号：US20190123761A1

公开(公告)日：2019-04-25

申请号：US15766085

申请日：2017-09-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chen Song ,  Song Meng ,  Danna Song ,  Zhongyuan Wu

IPC: H03M1/50 ,  G09G3/00 ,  G09G3/3233 ,  H03M1/10

CPC classification number: H03M1/50 ,  G09G3/006 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0295 ,  H03M1/10

Abstract: The present application discloses an analog-to-digital conversion (ADC) circuit. The circuit includes an integral circuit including an operational amplifier and an integral capacitor. The circuit further includes a comparator and a timer. The operational amplifier includes a positive input terminal configured to receive a first voltage, a negative input terminal coupled to a signal-collection line configured to collect an analog current signal, and an output terminal configured to output a first output signal. The comparator is configured to compare the first output signal with a second voltage to generate a second output signal to the timer. The timer is configured to start a timing operation when the operational amplifier receives the analog current signal and end the timing operation when the second output signal changes. A binary data resulted from the timing operation characterizes a digital signal corresponding to the analog current signal.