公开(公告)号：US09501973B2

公开(公告)日：2016-11-22

申请号：US14652343

申请日：2014-09-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang Sun ,  Ying Wang ,  Tuo Sun ,  Zhanjie Ma ,  Xinshe Yin ,  Lintao Zhang ,  Lujiang Huangfu

IPC: G09G3/3233 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0626

Abstract: A pixel driving circuit, array substrate and display apparatus, comprise: data line for providing data voltage; gate line for providing scanning voltage; first power supply line for providing first power supply voltage; second power supply line for providing second power supply voltage; light emitting device connected to second power supply line; driving transistor connected to first power supply line; storage capacitor having first terminal connected to gate of driving transistor and configured to transfer information to gate of driving transistor; resetting unit configured to reset voltage across storage capacitor as predetermined signal voltage; data writing unit configured to write information into second terminal of storage capacitor; compensating unit configured to write information into first terminal of storage capacitor; and light emitting control unit configured to write first power supply voltage into second terminal of storage capacitor and control driving transistor to drive light emitting device to emit light.

Abstract translation: 像素驱动电路，阵列基板和显示装置包括：用于提供数据电压的数据线; 提供扫描电压的栅极线; 第一电源线，用于提供第一电源电压; 用于提供第二电源电压的第二电源线; 发光装置连接到第二电源线; 驱动晶体管连接到第一电源线; 存储电容器，其第一端子连接到驱动晶体管的栅极并且被配置为将信息传送到驱动晶体管的栅极; 复位单元，被配置为将存储电容器两端的电压复位为预定的信号电压; 数据写入单元，被配置为将信息写入存储电容器的第二端; 补偿单元，被配置为将信息写入存储电容器的第一端子; 以及发光控制单元，被配置为将第一电源电压写入存储电容器的第二端子，并且控制驱动晶体管以驱动发光器件发光。

公开(公告)号：US11011586B2

公开(公告)日：2021-05-18

申请号：US15761372

申请日：2017-07-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing Fan ,  Guang Yan ,  Lintao Zhang ,  Zheng Liu

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: The present application discloses a display substrate including a plurality of pixels arranged in an array of matrix. Each of the plurality of pixels includes several OLED devices emitting light of different color. Each OLED device includes at least a first electrode, a second electrode, and an emitting layer located between the first electrode and the second electrode. At least one layer in either part of the first electrode or the emitting layer forming a microcavity characterized by an optical length. Any two OLED devices emitting light of same color in two adjacent pixels of the plurality of pixels have two microcavities respectively with different optical lengths. At least one OLED device emitting any one colored light in any one pixel of the plurality of pixels has a microcavity with different optical length from other OLED devices emitting light of different color in the same one pixel.

公开(公告)号：US10386873B2

公开(公告)日：2019-08-20

申请号：US15508315

申请日：2016-09-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Boya Zhang ,  Zhaohui Meng ,  Chenggeng Zhang ,  Lintao Zhang

IPC: G09G3/3225 ,  G05F1/46 ,  G05F1/10 ,  G09G3/3208

Abstract: Provided are a power supply voltage control circuit and a method thereof, a driver integrated circuit, and a display device. The power supply voltage control circuit comprises: a voltage detection unit (11) configured to detect a power supply voltage (ELVDD, ELVSS) received by the display panel (72) from a power supply circuit (73); a comparison unit (12) configured to obtain a voltage difference between the power supply voltage (ELVDD, ELVSS) and a reference voltage (VF1,VF2) through comparison; and a power supply voltage control unit (13) configured to transmit a power supply voltage control signal to the power supply circuit (73) according to the voltage difference and the reference voltage (VF1,VF2), so that the power supply circuit (73) outputs a corresponding power supply voltage to the display panel (72), so as to compensate for the voltage drop loss during voltage transmission, optimize display effect of the product, reduce effectively the voltage drop loss from the output terminal of the power supply circuit to the display panel side can be, and ensure consistency of the voltages inputted into the display panel.

公开(公告)号：US10283033B2

公开(公告)日：2019-05-07

申请号：US15159141

申请日：2016-05-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming Liu ,  Lintao Zhang

IPC: G09G3/34 ,  G09G3/20

Abstract: A driving method for a display panel, a driving circuit and a display device are disclosed. The driving method comprises; dividing input signals into M×N final signal groups according to positions of respective corresponding initial pixels in an input image; determining a reference brightness value of each final subarea according to the input signals; determining a brightness reduction function corresponding to the reference brightness value of the final subarea; adjusting a brightness value of each initial pixel in the final subarea according to the brightness reduction function corresponding to the final subarea, so as to adjust the brightness value of each initial pixel in each final subarea from an initial brightness value to a final brightness value; generating a voltage enabling display pixels of the display panel to display the obtained final brightness values; and inputting the obtained voltage to the display pixels of the display panel, respectively.

公开(公告)号：US10276100B2

公开(公告)日：2019-04-30

申请号：US15531561

申请日：2016-11-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Zhanjie Ma ,  Lintao Zhang ,  Tuo Sun ,  Zheng Liu

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A pixel circuit and driving method, an array substrate, a display panel, and a display device are provided. The pixel circuit includes a voltage clamping unit, an energy storage unit, and a reference voltage terminal. The voltage clamping unit connects to the reference voltage terminal and a first terminal of the energy storage unit. The voltage clamping unit forms a voltage divider circuit to supply a divided reference voltage from the reference voltage terminal to the first terminal of the energy storage unit or pulls and clamps the voltage at the first terminal of the energy storage unit to a reference voltage at the reference voltage terminal.

公开(公告)号：US09898967B2

公开(公告)日：2018-02-20

申请号：US15095733

申请日：2016-04-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming Liu ,  Lintao Zhang

IPC: G09G3/32 ,  G09G3/3258

CPC classification number: G09G3/3258 ,  G09G3/3216 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

Abstract: A driving voltage control method and apparatus, an array substrate, and a display device, wherein a plurality of predetermined areas (11a) are preset within a display area (11), and corresponding to any of the predetermined areas, the apparatus comprises an acquisition module (21) configured to acquire a luminance value of a pixel cell with the maximum luminance within the predetermined area (11a) in any frame, a search module (22) configured to search a preset table for a corresponding driving voltage value according to the luminance value acquired by the acquisition module and a control module (23) configured to control a driving voltage outputted to all the pixel cells within the predetermined area (11a) in a next frame according to the driving voltage value obtained by the search module. The driving voltage for the display device in any image can be reduced without affecting the display effect of the image.

公开(公告)号：US20160284269A1

公开(公告)日：2016-09-29

申请号：US14652343

申请日：2014-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang Sun ,  Ying Wang ,  Tuo Sun ,  Zhanjie Ma ,  Xinshe Yin ,  Lintao Zhang ,  Lujiang Huangfu

IPC: G09G3/3233 ,  G09G3/3258

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0626

Abstract: A pixel driving circuit, driving method thereof, an array substrate and display apparatus, the pixel driving circuit comprises: a data line for providing a data voltage; a gate line for providing a scanning voltage; a first power supply line for providing a first power supply voltage; a second power supply line for providing a second power supply voltage; a light emitting device connected to the second power supply line; a driving transistor connected to the first power supply line; a storage capacitor having a first terminal connected to a gate of the driving transistor and configured to transfer information including the data voltage to the gate of the driving transistor; a resetting unit configured to reset a voltage across the storage capacitor as a predetermined signal voltage; a data writing unit configured to write information including the data voltage into the second terminal of the storage capacitor; a compensating unit configured to write information including a threshold voltage of the driving transistor and information of the first power supply voltage into the first terminal of the storage capacitor; and a light emitting control unit configured to write the first power supply voltage into the second terminal of the storage capacitor and control the driving transistor to drive the light emitting device to emit light.

Abstract translation: 像素驱动电路，驱动方法，阵列基板和显示装置，像素驱动电路包括：数据线，用于提供数据电压; 用于提供扫描电压的栅极线; 用于提供第一电源电压的第一电源线; 用于提供第二电源电压的第二电源线; 连接到第二电源线的发光器件; 连接到所述第一电源线的驱动晶体管; 存储电容器，其具有连接到所述驱动晶体管的栅极的第一端子，并且被配置为将包括所述数据电压的信息传送到所述驱动晶体管的栅极; 复位单元，被配置为将存储电容器两端的电压复位为预定的信号电压; 数据写入单元，被配置为将包含数据电压的信息写入存储电容器的第二端子; 补偿单元，被配置为将包括驱动晶体管的阈值电压的信息和第一电源电压的信息写入到存储电容器的第一端子中; 以及发光控制单元，被配置为将第一电源电压写入到存储电容器的第二端子中，并且控制驱动晶体管驱动发光器件发光。

公开(公告)号：US20160078807A1

公开(公告)日：2016-03-17

申请号：US14555952

申请日：2014-11-28

Applicant: Boe Technology Group Co., Ltd.

Inventor： Liang Sun ,  Tuo Sun ,  Xiaodan Jin ,  Lintao Zhang

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/32 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2300/0876 ,  G09G2320/029 ,  G09G2320/043 ,  H01L27/3216 ,  H01L27/3218

Abstract: This disclosure relates to a display panel, an organic light emitting diode display and a display device comprising the display panel. The display panel according to one aspect of this disclosure comprises a plurality of pixels each comprising a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the first sub-pixel and the second sub-pixel are arranged in the row direction, the first sub-pixel in each pixel is adjacent to the first sub-pixel in a pixel adjacent in the row direction, the second sub-pixel in each pixel is adjacent to the second sub-pixel in another pixel adjacent in the row direction, the geometrical center of the third sub-pixel in each pixel is distributed uniformly on the display panel. By means of the display panel of this disclosure, the area of the light emitting area in the pixel can be increased, the aperture ratio can be improved, so as to realize high display quality.

Abstract translation: 本公开涉及显示面板，有机发光二极管显示器和包括显示面板的显示装置。 根据本公开的一个方面的显示面板包括多个像素，每个像素包括第一子像素，第二子像素和第三子像素，其中第一子像素和第二子像素被布置在 行方向，每个像素中的第一子像素与行方向相邻的像素中的第一子像素相邻，每个像素中的第二子像素与第二子像素相邻， 行方向，每个像素中的第三子像素的几何中心均匀地分布在显示面板上。 通过本公开的显示面板，可以增加像素中的发光面积的面积，可以提高开口率，从而实现高显示质量。