公开(公告)号：US09685634B2

公开(公告)日：2017-06-20

申请号：US14912633

申请日：2015-07-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Wenyu Ma ,  Xinwei Gao ,  Liangjian Li ,  Can Zhang

IPC: H01L33/00 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5271 ,  H01L27/32 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/001 ,  H01L51/0011 ,  H01L51/5218 ,  H01L2227/323 ,  H01L2251/5307 ,  H01L2251/533

Abstract: A pixel structure, a display device having the pixel structure and a manufacturing method of the pixel structure are disclosed. The pixel structure comprises: a first insulation layer; a luminescent unit disposed on the first insulation layer and comprising a first electrode layer, a luminescent layer and a second electrode layer; a pixel defining layer configured for defining a pixel aperture, in which the luminescent unit is disposed; and a reflective assembly disposed around the pixel defining layer so as to reflect light entering the pixel defining layer from the luminescent layer to exit from an exit surface of the pixel structure. The reflective assembly is provided to reflect the light entering the pixel defining layer from the luminescent layer, so as to exit from the exit surface of the pixel structure. As a result, the light beams entering the pixel defining layer may be converted into effective beams for the pixel structure, thereby improving the display effect and reducing light dissipation.

公开(公告)号：US20160372040A1

公开(公告)日：2016-12-22

申请号：US14785140

申请日：2015-02-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Tuo Sun ,  Xinshe Yin

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/2014 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2320/043 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04

Abstract: The present disclosure provides a pixel circuit, a display panel and a driving method thereof. The pixel circuit comprises a charging module, a light-emitting device and a capacitor. The present disclosure achieves a pulse width modulation driving with a pixel data refreshing frequency that is equal to a frame frequency, and addresses the problem of a large operation current and a low service life with the light-emitting device in the pixel. Furthermore, it features in low power consumption, a simple structure and being easy to implement.

Abstract translation: 本公开提供一种像素电路，显示面板及其驱动方法。 像素电路包括充电模块，发光装置和电容器。 本公开内容实现了具有等于帧频的像素数据刷新频率的脉宽调制驱动，并且解决了像素中的发光器件的大的操作电流和低使用寿命的问题。 而且，功耗低，结构简单，易于实现。

公开(公告)号：US09418756B2

公开(公告)日：2016-08-16

申请号：US14235670

申请日：2013-06-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yinan Liang ,  Lifei Ma ,  Lujiang Huangfu

IPC: H03L5/00 ,  G11C19/28 ,  G09G3/32

CPC classification number: G11C19/28 ,  G09G3/3241 ,  G09G2300/043 ,  G09G2310/0286

Abstract: Provided are a threshold voltage compensation circuit of TFT and a method for the same, a shift register and a display device. The threshold voltage compensation circuit includes an input terminal, an output terminal connected to the source of the thin film transistor, a first resistor to a Kth resistor connected in series, and Kth connectable link and at least one first connectable link. Since a voltage dividing circuit having connectable links divides the voltage input to the source of the thin film transistor, such that the gate-source voltage of the thin film transistor can be changed by changing the voltage of the source of the thin film transistor when the voltage of the gate of the thin film transistor is maintained unchanged, so as to control a leakage current of the thin film transistor under a turn-off state, such that the thin film transistor can be turned off normally.

Abstract translation: 提供TFT的阈值电压补偿电路及其方法，移位寄存器和显示装置。 阈值电压补偿电路包括输入端子，连接到薄膜晶体管的源极的输出端子，串联连接的第K个电阻器的第一电阻器和第K个可连接链路和至少一个第一可连接链路。 由于具有可连接链路的分压电路将输入的电压分隔成薄膜晶体管的源极，所以可以通过改变薄膜晶体管的源极的电压来改变薄膜晶体管的栅源电压 薄膜晶体管的栅极的电压保持不变，以便在关断状态下控制薄膜晶体管的漏电流，使得薄膜晶体管可以正常关断。

公开(公告)号：US12178082B2

公开(公告)日：2024-12-24

申请号：US18372884

申请日：2023-09-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yipeng Chen ,  Li Wang ,  Lujiang Huangfu

IPC: H01L29/08 ,  G09G3/3291 ,  H10K59/121 ,  H10K59/126

Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and an orthographic projection of the shielding portion on the base substrate at least partially overlap an orthographic projection of the first data line on the base substrate.

公开(公告)号：US12165561B2

公开(公告)日：2024-12-10

申请号：US18396023

申请日：2023-12-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhenzhen Li ,  Lujiang Huangfu ,  Shanshan Bai ,  Kuo Sun

IPC: G09G3/20

Abstract: A display substrate, a method for driving the same, a display device, and a high-precision metal mask are provided. The display area includes a first display sub-area in which pixels are distributed at a high density (e.g., a high resolution), and a second display sub-area in which pixels are distributed at a low density (e.g., a low resolution), and a transition display sub-area, with a distribution density of pixels (a resolution) between the distribution density of pixels in the first display sub-area and a distribution density of pixels in the second display sub-area, is arranged between the first display sub-area and the second display sub-area.

公开(公告)号：US12035599B2

公开(公告)日：2024-07-09

申请号：US18106721

申请日：2023-02-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hongli Wang ,  Lujiang Huangfu

IPC: H10K30/30 ,  H10K59/122 ,  H10K59/35 ,  H10K50/86 ,  H10K71/16

CPC classification number: H10K59/353 ,  H10K59/122 ,  H10K59/352 ,  H10K50/865 ,  H10K71/166

Abstract: An array substrate and a display device are disclosed. The array substrate includes a first block group, a second block group, a third block group and a fourth block group, a connection line between a center of the first color sub-pixel block of the first block group and a center of the first color sub-pixel block of the second block group has a first length in the first direction, a distance between center of the first color sub-pixel block of the first block group and center of the first color sub-pixel block of the third block group ranges from the first length to 3/2 of the first length, a distance between center of the first color sub-pixel block of the fourth block group and center of the first color sub-pixel block of the second block group ranges from ½ of the first length to the first length.

公开(公告)号：US12033559B2

公开(公告)日：2024-07-09

申请号：US18140429

申请日：2023-04-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhenzhen Li ,  Kuo Sun ,  Lujiang Huangfu ,  Shanshan Bai

IPC: G09G3/20 ,  G07F17/32 ,  G07F17/34

CPC classification number: G09G3/2074 ,  G07F17/3213 ,  G07F17/3218 ,  G07F17/3225 ,  G07F17/3244 ,  G07F17/3267 ,  G07F17/34 ,  G09G2300/0452 ,  G09G2320/0233

Abstract: A display substrate, a method for driving the same, a display device, and a fine metal mask are provided, and a display area of the display substrate includes a first display sub-area in which pixels are distributed at a high density, and a second display sub-area in which pixels are distributed at a low density.

公开(公告)号：US12002425B2

公开(公告)日：2024-06-04

申请号：US18038690

申请日：2020-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Li Wang ,  Jianchao Zhu ,  Libin Liu

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2330/021

Abstract: Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit includes a drive transistor, a reset circuit, a data writing circuit, a storage capacitor circuit, a threshold value compensation circuit, a conduction control circuit, a light-emitting control circuit, and a light-emitting device; the conduction control circuit is configured to: conduct the threshold value compensation circuit with the gate of the drive transistor, and conduct the reset circuit with the gate of the drive transistor at the reset stage, the threshold value detecting stage and the data writing stage; and cut off a conducting state of the threshold value compensation circuit with the gate of the drive transistor, and cut off a conducting state of the reset circuit with the gate of the drive transistor at the driving stage; where the conduction control circuit includes an oxide semiconductor thin film transistor.

公开(公告)号：US20240177660A1

公开(公告)日：2024-05-30

申请号：US17789174

申请日：2021-09-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Li Wang ,  Jianchao Zhu ,  Libin Liu ,  Yu Feng

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).

公开(公告)号：US11837169B2

公开(公告)日：2023-12-05

申请号：US17744709

申请日：2022-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yipeng Chen ,  Libin Liu ,  Lujiang Huangfu

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/2092 ,  G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2320/045

Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.