公开(公告)号：US11804195B2

公开(公告)日：2023-10-31

申请号：US17242278

申请日：2021-04-27

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Hsiang Huang ,  Chia-Hsing Hou ,  Yu-Lin Cheng ,  Chung-Wen Wu

IPC: G09G3/36

CPC classification number: G09G3/3618 ,  G09G2310/0291 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/064 ,  G09G2360/18

Abstract: The disclosure provides a display equipment, a brightness compensation device, and a brightness compensation method. The brightness compensation device includes a variable refresh rate (VRR) detection circuit and a control circuit. The VRR detection circuit and the control circuit receive a video stream from a video source device, and the video stream includes a VRR video frame. The VRR detection circuit detects a blanking period of the VRR video frame and generates a detection result. The control circuit outputs the frame data of the VRR video frame to the display device during the valid data period of the VRR video frame. The control circuit repeatedly outputs the frame data of the VRR video frame to the display device during the blanking period of the VRR video frame according to the detection result until the blanking period ends.

公开(公告)号：US20220343871A1

公开(公告)日：2022-10-27

申请号：US17242278

申请日：2021-04-27

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Hsiang Huang ,  Chia-Hsing Hou ,  Yu-Lin Cheng ,  Chung-Wen Wu

IPC: G09G3/36

Abstract: The disclosure provides a display equipment, a brightness compensation device, and a brightness compensation method. The brightness compensation device includes a variable refresh rate (VRR) detection circuit and a control circuit. The VRR detection circuit and the control circuit receive a video stream from a video source device, and the video stream includes a VRR video frame. The VRR detection circuit detects a blanking period of the VRR video frame and generates a detection result. The control circuit outputs the frame data of the VRR video frame to the display device during the valid data period of the VRR video frame. The control circuit repeatedly outputs the frame data of the VRR video frame to the display device during the blanking period of the VRR video frame according to the detection result until the blanking period ends.

公开(公告)号：US09787937B1

公开(公告)日：2017-10-10

申请号：US15169761

申请日：2016-06-01

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Wei Hung ,  Chia-Hsing Hou

IPC: H04N5/66 ,  H04N9/12 ,  H04N7/01 ,  G06F3/14 ,  G09G5/00

CPC classification number: H04N7/0122 ,  G06F3/1446 ,  G09G5/005 ,  G09G2300/026 ,  G09G2320/0606 ,  G09G2340/0407 ,  G09G2340/0435 ,  G09G2354/00 ,  G09G2356/00 ,  G09G2370/04

Abstract: A display apparatus that is suitable for a video wall and an operation method thereof are provided. The display apparatus includes a display panel, a memory circuit and a video processing circuit. The memory circuit is used for storing extended display identification data (EDID), and resolution information of the EDID may affect a resolution of a video frame signal of a video source. The video processing circuit transmits the video frame signal to a video output connector. Based on a video wall configuration parameter, the video processing circuit captures part or all of pixel data in the video frame signal to obtain a captured frame, and displays the captured frame on the display panel. Based on the video wall configuration parameter, the video processing circuit can adaptively change the resolution information of the EDID stored in the memory circuit.