公开(公告)号：US20220140050A1

公开(公告)日：2022-05-05

申请号：US17259465

申请日：2020-03-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li LIU ,  Pengcheng LU ,  Rongrong SHI ,  Yuanlan TIAN ,  Xiao BAI ,  Dacheng ZHANG

IPC: H01L27/32 ,  H01L51/56

Abstract: Provided is display substrate, including driving circuit board, and first electrode layer, insulating layer, second electrode layer, isolation layer, transparent conductive layer sequentially stacked thereon. Driving circuit board includes pixel and bonding regions. First electrode layer includes first sub-portion in bonding region and second sub-portion in pixel region. Insulating and isolation layers are partially cover bonding and pixel regions. Insulating layer has first via hole in area corresponding to first sub-portion. Isolation layer has second via hole in the area. Axes of first and second via holes coincide, first sub-portion is exposed at first and second via holes. Second electrode layer is in pixel region, coupled to second sub-portion through third via hole in area corresponding to second sub-portion. Isolation layer has fourth via hole in area corresponding to second electrode layer. Transparent conductive layer is in pixel region, coupled to second electrode layer through fourth via hole.

公开(公告)号：US20220139329A1

公开(公告)日：2022-05-05

申请号：US17258892

申请日：2020-03-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiao BAI ,  Shengji YANG ,  Pengcheng LU

IPC: G09G3/3275

Abstract: The present disclosure relates to a display panel and a driving method thereof. The display panel includes a source driving circuit and a pixel driving circuit. The source driving circuit includes a DAC power amplifier, and a switch unit. The DAC is configured to convert a digital data signal into an analog data signal; the power amplifier is configured to receive the analog data signal and improve a driving capability of the analog data signal; the switch unit is connected to the DAC, the power amplifier, and a control signal terminal, and is configured to connect the DAC to the power amplifier in response to a signal of the control signal terminal. The pixel driving circuit includes a data signal terminal; an output terminal of the power amplifier is connected to the data signal terminal, and is configured to input the analog data signal with improved driving capability to the data signal terminal.

公开(公告)号：US20220115484A1

公开(公告)日：2022-04-14

申请号：US17266625

申请日：2020-03-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pengcheng LU ,  Shengji YANG ,  Kuanta HUANG ,  Xiaochuan CHEN ,  Yage SONG ,  Yanming WANG ,  Hui WANG ,  Dongdong DUAN ,  Jiantong LI ,  Xiao BAI ,  Yunlong LI ,  Shuai TIAN ,  Zhijian ZHU ,  Yu AO ,  Junbo WEI ,  Chao PU ,  Yuanlan TIAN

IPC: H01L27/32

Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a silicon-based substrate and an array structure layer arranged on the silicon-based substrate; a driving transistor and a first power line being arranged in the silicon-based substrate in the display area, a light emitting element being disposed on the array structure layer in the display area, a first electrode of the driving transistor being connected with the first power line, and a second electrode of the driving transistor being connected with an anode of the light emitting element; a power supply electrode and a second power line being arranged in the silicon-based substrate in the peripheral area, the power supply electrode being connected with the second power line.