Display device, brightness compensation device and brightness compensation method

The invention provides a display device, a brightness compensation device and a brightness compensation method. The brightness compensation apparatus 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, wherein the video stream includes VRR video frames. The VRR detection circuit detects a blank period of the VRR video frame to generate a detection result. The control circuit outputs frame data of the VRR video frame to the display device during valid data of the VRR video frame. The control circuit repeatedly outputs frame data of the VRR video frame to the display device in a blank period of the VRR video frame according to the detection result until the blank period ends. 本发明提供一种显示设备、亮度补偿装置与亮度补偿方法。亮度补偿装置包括可变刷新率(VRR)检测电路以及控制电路。VRR检测电路与控制电路从视频源装置接收视频串流，其中视频串流包含VRR视频帧。VRR检测电路检测所述VRR视频帧的空白期间而产生检测结果。控制电路在VRR视频帧的有效数据期间将VRR视频帧的帧数据输出给显示装置。控制电路依据该检测结果在VRR视频帧的空白期间重复地将VRR视频帧的帧数据输出给显示装置，直到空白期