Ключевые слова: 4k, black, blackboard, broadcasting, chalk, chalkboard, characters, concepts, definition, design, elegance, entertainment, film, format, full, hand, hdmi, image, innovation, internet, isolated, led, oled, panel, photograph, pixelated, showing, sign, symbol, technology, television, text, ultra, video, zzzagpaabfdbdecndeelcneigbgogehhhcgjhegfcnecgmgbgdgl,