Patent ID: 11849624

Abstract:
A display device having switchable viewing angle includes a display panel including a first emission area, a second emission area, a third emission area and a fourth emission area, from which light in different wavelength bands is emitted, and a transparent photochromic layer disposed on at least one surface of the display panel, wherein each of the first emission area, the second emission area and the third emission area emits light in a wavelength band of visible light, the fourth emission area emits light in a wavelength band of ultraviolet ray, and when the fourth emission area is in an emission state, an area of the photochromic layer including the area corresponding to the fourth emission area is an opaque area, and wherein when the fourth emission area is in a non-emission state, an area of the photochromic layer including the area corresponding to the fourth emission area is a transparent region, thereby providing a display device capable of switching viewing angles.