公开(公告)号：US20230343281A1

公开(公告)日：2023-10-26

申请号：US17635020

申请日：2021-04-25

Applicant: BOE Intelligent IoT Technology Co., LTD. ,  BOE Technology Group Co., Ltd.

Inventor： Xingchen LIU ,  Jinghua YANG ,  Wei LIN ,  Yushun JIE ,  Yao ZHANG ,  Guoshuai ZHU

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2330/027 ,  G09G2330/021 ,  G09G2320/0257 ,  G09G2310/08

Abstract: The present application provides a displaying device and a controlling method thereof, which relates to the technical field of displaying. The displaying device can solve the problem of residual images generated in power-off and greatly improve the product quality and the user experience. The displaying device includes: a time-sequence controlling circuit, a power-supply circuit, a system controlling circuit and a display panel; the power-supply circuit is electrically connected to the time-sequence controlling circuit and the system controlling circuit, and is configured for: providing a first power-supply voltage and a second power-supply voltage to the time-sequence controlling circuit, wherein a magnitude of the first power-supply voltage and that of the second power-supply voltage are different; in a normal shutdown mode, under control of the system controlling circuit, firstly shutting down an output of the first power-supply voltage, after a first time period, shutting down an output of the second power-supply voltage.

公开(公告)号：US20220217860A1

公开(公告)日：2022-07-07

申请号：US17505489

申请日：2021-10-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yao ZHANG ,  Guoshuai ZHU ,  Jinghua YANG

IPC: H05K5/02 ,  H05K5/00 ,  G09F9/30 ,  F16M11/06 ,  F16M11/22

Abstract: The present disclosure relates to the field of display technologies, and provides a display apparatus, including: a support and a display module, wherein the support includes a support part and a rotation part; a frame is disposed at a periphery of the display module, and includes two first frame segments which are oppositely arranged and two second frame segments which are oppositely arranged; one end of the rotation part is pivoted to the support part; a rotation axis of the rotation part is a center line of the rotation part; the other end of the rotation part is fixedly connected to any one of the first frame segments or the second frame segments; the axis of the rotation part is at a first included angle with the frame; and the first included angle is used for switching of the display module between a landscape-screen mode and a portrait-screen mode.