Kim Ju Yeun

TL;DR: In this paper, the authors present a display apparatus that includes an input unit receiving a display signal including a video signal, a graphic signal, and an alpha value; a calculation unit calculating effective data of the video signal and the graphic signal to perform alpha blending by using an alpha values of each pixel in the display signal; an alpha blending unit performing alpha blending for a display signals by using the effective data calculated through the calculation unit and the alpha values; and a display unit displaying an image generated according to the alpha blended display signal.