公开(公告)号：US20190295462A1

公开(公告)日：2019-09-26

申请号：US16117412

申请日：2018-08-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Danna Song

IPC: G09G3/3208 ,  G09G3/20

Abstract: A method and a device for luminance adjustment, and a display device are provided. The luminance adjustment method includes: receiving an image data signal; and performing luminance adjustment on a dynamic image according to a target adjustment mode when a received image data signal belongs to the dynamic image, wherein the target adjustment mode is a luminance adjustment corresponding to a sum of luminance components in the image data signal among the plurality of adjustment modes; the plurality of adjustment modes includes a first mode, a second mode and a third mode, the range of luminance adjustment based on the second mode is between the one based on the first mode and the one based on the third mode. With the luminance adjustment method and device, the image flickering in displaying a dynamic image may be reduced.

公开(公告)号：US20180330666A1

公开(公告)日：2018-11-15

申请号：US15822495

申请日：2017-11-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Danna Song

IPC: G09G3/3258 ,  H01L27/12

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2310/0264 ,  G09G2320/0295 ,  G09G2320/045 ,  H01L27/1214 ,  H01L27/3213

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：US09870728B2

公开(公告)日：2018-01-16

申请号：US14769415

申请日：2015-02-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Szuheng Tseng ,  Danna Song

IPC: G09G3/3208 ,  G09G3/20 ,  G06T11/00

CPC classification number: G09G3/2003 ,  G06T11/001 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2360/16

Abstract: The present disclosure provides a white organic light-emitting diode (WOLED) display device, its display control method, and a display control device. The method includes: receiving red (R), green (G) and blue (B) source data, and determining a minimum value of the R, G and B source data; determining white (W) data in accordance with the minimum value; determining chromaticity coordinates of a WOLED in accordance with the W data; acquiring a brightness value of the WOLED desired for compensating for the chromaticity coordinates of the WOLED to a target value, and a gain value of a subpixel participating in chromatic aberration compensation; and determining output values of R, G, B and W data in accordance with the brightness value of the WOLED, the gain value of the subpixel participating in the chromatic aberration compensation and the W data.

公开(公告)号：US09601050B2

公开(公告)日：2017-03-21

申请号：US14342023

申请日：2013-04-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu ,  Danna Song

IPC: G09G3/32 ,  G09G3/3225 ,  G09G3/3233 ,  H03F3/26 ,  H03F3/45

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045 ,  H03F3/26 ,  H03F3/45

Abstract: An external-compensation sensing circuit, sensing method, and display device. The circuit includes fully-differential operational amplifier, first capacitor, second capacitor and outputting circuit for amplifying induced current; negative input of the amplifier is connected to display screen, positive input thereof is connected to reference voltage, negative output thereof is connected to first control terminal of the outputting circuit, positive output thereof is connected to second control terminal of the outputting circuit; two terminals of the first capacitor are connected to the negative input of the amplifier and an input of the outputting circuit respectively; one terminal of the second capacitor is connected to the output of the outputting circuit and the other terminal is grounded. The invention enables the output voltage to respond rapidly by amplifying induced current with dual outputting stages in the sensing circuit to raise the speed of the external-compensation.

公开(公告)号：US09576525B2

公开(公告)日：2017-02-21

申请号：US14347369

申请日：2013-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Zhongyuan Wu

IPC: G09G3/3225 ,  G09G3/32

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2320/0204 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/045

Abstract: Provided are an AMOLED pixel unit, a method for driving the same, and a display device. The AMOLED pixel unit includes a compensating unit, a light emitting control unit, a driving transistor, a storage capacitor and an organic light emitting diode, wherein the compensating unit is switched on under the control of a signal on a scan line; the light emitting control unit is switched on under the control of a signal on a light emitting control line; an anode of the organic light emitting diode is connected to a second terminal of the storage capacitor, and a cathode of the organic light emitting diode receives a second power supply signal. Such a circuit can effectively compensate for the drift and the non-uniformity of the threshold voltages of the transistors and the non-uniformity of the voltages of the organic light emitting diodes.

Abstract translation: 提供了一种AMOLED像素单元，其驱动方法和显示装置。 AMOLED像素单元包括补偿单元，发光控制单元，驱动晶体管，存储电容器和有机发光二极管，其中补偿单元在扫描线上的信号的控制下接通; 发光控制单元在发光控制线上的信号的控制下接通; 有机发光二极管的阳极连接到存储电容器的第二端子，有机发光二极管的阴极接收第二电源信号。 这种电路可以有效地补偿晶体管的阈值电压的漂移和不均匀性以及有机发光二极管的电压的不均匀性。

公开(公告)号：US20160307493A1

公开(公告)日：2016-10-20

申请号：US15037797

申请日：2015-10-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/2074 ,  G09G3/2003 ,  G09G3/3208 ,  G09G3/3225 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2340/06

Abstract: The present disclosure provides a method and an apparatus for controlling image display of a WOLED display apparatus and a WOLED display apparatus. The method includes: converting gray scale data of respective lights with various colors inputted by a signal source into brightness data of the respective lights with various colors; acquiring brightness adjustment data of white sub-pixel lights and brightness adjustment data of the respective lights with various colors on the basis of the brightness data of the respective lights with various colors and proportions of the respective lights with various colors in the white sub-pixel lights; converting the brightness adjustment data of white sub-pixel lights and brightness adjustment data of the respective lights with various colors into gray scale data and outputting and displaying the gray scale data. The above method and apparatus provides a simple calculating method when adjusting the display data and may eliminate color cast.

Abstract translation: 本公开提供了一种用于控制WOLED显示装置和WOLED显示装置的图像显示的方法和装置。 该方法包括：将由信号源输入的各种颜色的各种光的灰度数据转换成各种颜色的各种光的亮度数据; 基于具有各种颜色的各种光的亮度数据和在白色子像素中具有各种颜色的各种比例的比例，获取各种颜色的各种光的白色子像素光的亮度调节数据和各种颜色的亮度调节数据 灯光 将白色子像素光的亮度调整数据和各种颜色的各种亮度调整数据转换为灰度数据，并输出并显示灰度数据。 上述方法和装置在调整显示数据时可以提供简单的计算方法，并且可以消除色差。

公开(公告)号：US20160232848A1

公开(公告)日：2016-08-11

申请号：US14907448

申请日：2015-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Song Meng ,  Danna Song

IPC: G09G3/32

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).

Abstract translation: 本公开的实施例涉及显示技术的技术领域，并且提供用于像素电路及其驱动装置的驱动方法。 可以通过根据本公开的实施例的技术方案，通过伽马曲线和表查找进行调整时由于存储器数量的增加而引起的成本增加的问题。 像素电路的驱动方法包括获取发光阶段的显示画面的亮度信息（S101）。 根据亮度信息确定脉冲信号的占空比（S102）; 向第一电压端子输入高电平，并且通过第一栅极线将具有占空比的脉冲信号输入到第一开关晶体管的栅极（S103）。

公开(公告)号：US20150161944A1

公开(公告)日：2015-06-11

申请号：US14342262

申请日：2013-06-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Zhongyuan Wu

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2320/045

Abstract: A pixel driving circuit, an array substrate and a display apparatus, the pixel driving circuit includes a driving transistor and an organic light-emitting diode, it further comprises: a charging compensation module, for receiving a data voltage signal, charging the driving transistor and compensating for a threshold voltage of the driving transistor, under the control of a scan voltage signal; and a light-emitting control module, for receiving a reference voltage and a power supply voltage, and controlling the organic light-emitting diode to emit lights, under the control of a light-emitting control signal. The problem of the non-uniformity of threshold voltages is eliminated by compensating for the threshold voltages of driving transistors thereby enhancing the display effect of the display apparatus.

Abstract translation: 像素驱动电路，阵列基板和显示装置，像素驱动电路包括驱动晶体管和有机发光二极管，还包括：充电补偿模块，用于接收数据电压信号，对驱动晶体管充电;以及 在扫描电压信号的控制下补偿驱动晶体管的阈值电压; 以及发光控制模块，用于接收参考电压和电源电压，并且在发光控制信号的控制下控制有机发光二极管发光。 通过补偿驱动晶体管的阈值电压来消除阈值电压的不均匀性的问题，从而增强显示装置的显示效果。

公开(公告)号：US20150154762A1

公开(公告)日：2015-06-04

申请号：US14355077

申请日：2013-05-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei Yang ,  Zhongyuan Wu ,  Danna Song

IPC: G06T11/00 ,  G06T3/20 ,  G06T7/40

CPC classification number: G06T11/001 ,  G06T3/20 ,  G09G3/2003 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2340/06 ,  H04N5/14 ,  H04N9/67

Abstract: Provided are a method and device for image conversion from RGB signals to RGBW signals, The method includes the steps of converting RGB input signals as received into corresponding RGB luminance input values respectively; determining RGBW luminance output values respectively according to a position relationship between a corresponding point of the RGB luminance input values and regions divided by RGBW in a chromaticity diagram; and converting the determined RGBW luminance output values into corresponding RGBW output signals respectively and outputting the RGBW output signals.

Abstract translation: 提供了一种用于从RGB信号到RGBW信号的图像转换的方法和装置。该方法包括以下步骤：将接收到的RGB输入信号分别转换成相应的RGB亮度输入值; 根据RGB亮度输入值的对应点与色度图中由RGBW分割的区域之间的位置关系分别确定RGBW亮度输出值; 并将所确定的RGBW亮度输出值分别转换成相应的RGBW输出信号并输出​​RGBW输出信号。

公开(公告)号：US11308875B2

公开(公告)日：2022-04-19

申请号：US16469375

申请日：2019-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3291

Abstract: A detection method of a pixel circuit, a display panel and a driving method thereof are provided. The detection method includes: during a reference charging period, applying a reference data voltage to a gate electrode of a driving transistor, and at a first time duration after applying the reference data voltage, obtaining a benchmark voltage from a sensing line; and during a data charging period, applying a detection data voltage different from the reference data voltage to the gate electrode of the driving transistor, and at the first time duration after applying the detection data voltage, obtaining an initial sensing voltage from the sensing line. A sensing voltage of the pixel circuit is obtained based on at least the benchmark voltage and the initial sensing voltage, and a threshold voltage of the driving transistor is obtained based on the sensing voltage.