Invention Grant
- Patent Title: Display apparatus and current limiting method
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Application No.: US17999151Application Date: 2021-05-17
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Publication No.: US11893932B2Publication Date: 2024-02-06
- Inventor: Toshiyuki Kato
- Applicant: JOLED INC.
- Applicant Address: JP Tokyo
- Assignee: JOLED INC.
- Current Assignee: JOLED INC.
- Current Assignee Address: JP Tokyo
- Agency: CHIP LAW GROUP
- Priority: JP 20089704 2020.05.22
- International Application: PCT/JP2021/018689 2021.05.17
- International Announcement: WO2021/235415A 2021.11.25
- Date entered country: 2022-11-17
- Main IPC: G09G3/3225
- IPC: G09G3/3225

Abstract:
A display apparatus includes a display panel including a plurality of pixels, and a current limiting circuit that limits current consumption in the plurality of pixels, the current limiting circuit includes a gain computation circuit that computes a screen power value in reference to a pixel value included in a video signal and that determines a gain in reference to the screen power value, and a gain multiplication circuit that multiplies the pixel value by the gain and that outputs a limit signal including the pixel value multiplied by the gain, the display panel includes a display unit, and a lighting control circuit that controls a lighting state of the plurality of pixels in reference to a predicted power value computed according to the limit signal, to reduce a power consumption value in the plurality of pixels to a value equal to or smaller than a control target power value, the gain is 1 when the screen power value is equal to or smaller than the control target power value, and the gain is a value equal to or smaller than a value obtained by dividing the control target power value by the screen power value, in other cases.
Public/Granted literature
- US20230222971A1 DISPLAY APPARATUS AND CURRENT LIMITING METHOD Public/Granted day:2023-07-13
Information query
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