IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND DISPLAY DEVICE

An image processing device comprises: a subtitle information acquisition unit which acquires subtitle information; a subtitle processing unit which renders a subtitle at the resolution of an entire image of a display panel on the basis of the subtitle information acquired by the subtitle information acquisition unit, and generates a subtitle image of an area-of-interest among a plurality of divided display areas in the display panel; an image-of-interest generation unit which generates an image signal of the area-of-interest; and a synthesis unit which synthesizes the subtitle image generated by the subtitle processing unit and the image signal generated by the image-of-interest generation unit to generate an image signal having subtitles. 该图像处理设备包括：获取字幕信息的字幕信息获取单元；字幕处理单元，其基于由字幕信息获取单元获取的字幕信息以显示面板的整个图像的分辨率执行字幕的渲染，以生成在显示面板中划分的多个显示区域中的负责区域的字幕图像；负责图像生成单元，生成负责区域的图像信号；以及合成单元，将由字幕处理单元生成的字幕图像与由负责图像生成单元生成的图像信号进行合成，以生成带有字幕的图像信号。