公开(公告)号：US09947273B2

公开(公告)日：2018-04-17

申请号：US15220080

申请日：2016-07-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Song Meng ,  Danna Song ,  Yang Zhou ,  Fei Yang

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G3/20 ,  G09G2300/043 ,  G09G2300/0452 ,  G09G2320/0233

Abstract: The present disclosure provides a voltage drop compensation method, a voltage drop compensation device and a display device. The voltage drop compensation method includes steps of determining a voltage drop for a power signal corresponding to each subpixel set; determining a first equivalent brightness reduction value corresponding to the voltage drop; calculating an initial brightness value for each subpixel in the subpixel set; calculating a sum of the first equivalent brightness reduction value corresponding to the subpixel set and the initial brightness value as a target brightness value for each subpixel in the subpixel set; and generating a driving signal for each subpixel in accordance with the target brightness value for each subpixel in the subpixel set, and outputting the driving signal.

公开(公告)号：US09837480B2

公开(公告)日：2017-12-05

申请号：US14787396

申请日：2015-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Baoxia Zhang

IPC: H01L29/00 ,  H01L27/32 ,  H01L27/12 ,  H01L29/786 ,  H01L21/77

CPC classification number: H01L27/3272 ,  H01L21/77 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/127 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3262 ,  H01L29/4908 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78648 ,  H01L29/78678 ,  H01L29/7869 ,  H01L2227/323

Abstract: An array substrate, a method for fabricating the array substrate and a display device are described. The array substrate includes: a first gate electrode metal layer; a first gate insulation layer; an active layer on the first gate insulation layer; an etching barrier layer on the active layer; a source-drain metal layer including a source electrode and a drain electrode that contact with two sides of the active layer respectively; a second gate insulation layer on the source-drain metal layer; and a second gate electrode metal layer on the second gate insulation layer. The array substrate has an optimized TFT performance and a reduced gate line resistance, and light may be blocked from irradiating on the active layer, which is beneficial to restrain IR Drop, drifting of TFT threshold voltages or generation of a light-incurred leakage current on the active layer. Performance of the display device is improved.

公开(公告)号：US09591715B2

公开(公告)日：2017-03-07

申请号：US14803387

申请日：2015-07-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Qinghui Zeng

IPC: H05B33/08

CPC classification number: H05B33/0896 ,  G09G3/00

Abstract: An OLED driving compensation circuit and a driving method thereof are provided. The circuit comprises an external compensation module and a driving module comprising a driving transistor and a storage capacitor. The driving transistor is respectively connected with a power supply voltage terminal and an OLED via a first electrode and a second electrode thereof, a first terminal of the storage capacitor is connected with a control electrode of the driving transistor, and a second terminal thereof is connected between the driving transistor and the OLED. The external compensation module is connected between the driving transistor and the OLED and provides a reference voltage to the electrode of the driving transistor connected with the second terminal of the storage capacitor, to reset the voltage on the electrode. The power supply voltage terminal as variable voltage source inputs a first voltage equal to the reference voltage when the voltage is reset.

Abstract translation: 提供OLED驱动补偿电路及其驱动方法。 电路包括外部补偿模块和包括驱动晶体管和存储电容器的驱动模块。 驱动晶体管分别经由第一电极和第二电极与电源电压端子和OLED连接，存储电容器的第一端子与驱动晶体管的控制电极连接，并且其第二端子被连接 在驱动晶体管和OLED之间。 外部补偿模块连接在驱动晶体管和OLED之间，并向与存储电容器的第二端连接的驱动晶体管的电极提供参考电压，以重置电极上的电压。 作为可变电压源的电源电压端子在电压复位时输入等于参考电压的第一电压。

公开(公告)号：US09589493B2

公开(公告)日：2017-03-07

申请号：US14429820

申请日：2014-06-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Zhongyuan Wu

IPC: G09G3/20 ,  G09G3/32 ,  H01L27/32

CPC classification number: G09G3/2003 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2360/16 ,  H01L27/3213 ,  H01L27/3216

Abstract: An organic electroluminescent display device, a driving method thereof and a display device are provided. The organic electroluminescent display device comprises: a plurality of pixel units arranged in matrix, each of the pixel units comprising a plurality of sub-pixel units for displaying different colors, and in each row of the pixel units, two adjacent pixel units constituting a pixel unit group; and a sub-pixel unit for displaying white between the two adjacent pixel units in each pixel unit group. The area occupied by the sub-pixel unit for displaying white is greater than that occupied by any one sub-pixel unit in the pixel unit. The sub-pixel unit for displaying white is configured such that the luminance of emitted light thereof replaces the luminance of light emitted by one pixel unit of two adjacent pixel units in a frame according to a preset condition.

Abstract translation: 提供一种有机电致发光显示装置，其驱动方法和显示装置。 有机电致发光显示装置包括：矩阵排列的多个像素单元，每个像素单元包括用于显示不同颜色的多个子像素单元，并且在每行像素单元中，构成像素的两个相邻像素单元 单位组 以及用于在每个像素单元组中的两个相邻像素单元之间显示白色的子像素单元。 用于显示白色的子像素单元所占据的面积大于像素单元中的任何一个子像素单元所占据的面积。 用于显示白色的子像素单元被配置为使得其发射光的亮度根据预设条件替换帧中的两个相邻像素单元的一个像素单元发射的光的亮度。

公开(公告)号：US09570003B2

公开(公告)日：2017-02-14

申请号：US14342023

申请日：2013-04-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu ,  Danna Song

IPC: G09G3/32 ,  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：US11776438B2

公开(公告)日：2023-10-03

申请号：US16467022

申请日：2018-10-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song

IPC: G09G3/3233 ,  G09G3/00

CPC classification number: G09G3/006 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2360/16

Abstract: A detecting method of a pixel circuit, a driving method of a display panel and a display device are provided. The pixel circuit includes a driving transistor, and the detecting method comprises: in a first charging cycle, applying a first data voltage to a gate electrode of the driving transistor, and in a first time duration, obtaining a first sensing voltage at a first electrode of the driving transistor and determining whether the first sensing voltage is equal to a first reference sensing voltage; and in a second charging cycle, applying a second data voltage to the gate electrode of the driving transistor, and in a second time duration, obtaining a second sensing voltage at the first electrode of the driving transistor and determining whether the second sensing voltage is equal to a second reference sensing voltage.

公开(公告)号：US11222592B2

公开(公告)日：2022-01-11

申请号：US16938671

申请日：2020-07-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming I Chu ,  Zhongyuan Wu ,  Fei Yang ,  Song Meng ,  Danna Song

IPC: G09G3/30 ,  G09G3/3258 ,  H01L27/32

Abstract: A compensation method for an electroluminescent display panel, a driving device, a display device, and a storage medium are provided. The compensation method includes: receiving a first display data signal; performing an optical compensation operation on the first display data signal to obtain a second display data signal; performing an electrical compensation operation on the second display data signal to obtain a third display data signal; and outputting the third display data signal for display.

公开(公告)号：US10937837B2

公开(公告)日：2021-03-02

申请号：US16062827

申请日：2018-01-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song

IPC: H01L27/32 ,  G09G3/3225

Abstract: A display control method and apparatus, and a display apparatus. The method includes: acquiring an actual chromaticity coordinate of light of a mixed color sub pixel; calculating respective proportions of light of primary-color sub-pixels within the light of the mixed-color sub-pixel, according to the actual chromaticity coordinate of the light of the mixed-color sub-pixel and chromaticity coordinates of the light of the primary-color sub-pixels; and determining target luminance data of the mixed-color sub-pixel and target luminance data of the primary-color sub-pixels, according to initial luminance data of the primary-color sub-pixels and the respective proportions of the light of the primary-color sub-pixels within the light of the mixed-color sub-pixel.

公开(公告)号：US20200066199A1

公开(公告)日：2020-02-27

申请号：US16466139

申请日：2018-09-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Danna Song

IPC: G09G3/20 ,  G09G3/3275

Abstract: A driving method and a driving device for a display panel, and a display device are provided. Each pixel of the display panel includes at least two primary-color sub-pixels of different colors and one mixed-color sub-pixel, and the driving method comprises: determining display power consumption according to the obtained brightness value of each of the primary-color sub-pixels; compensating for the brightness value of each of the primary-color sub-pixels according to the display power consumption; determining an output brightness value of each of the sub-pixels according to the compensated brightness value of each of the primary-color sub-pixels and a color coordinate of each of the sub-pixels; and outputting the output brightness value of each of the sub-pixels to a source driving circuit.

公开(公告)号：US10529275B2

公开(公告)日：2020-01-07

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.