US 12,331,181 B2
Display device
Hisashi Watanabe, Kameyama (JP); and Hirotoshi Yasunaga, Kameyama (JP)
Assigned to Sharp Display Technology Corporation, Kameyama (JP)
Filed by Sharp Display Technology Corporation, Kameyama (JP)
Filed on Sep. 19, 2023, as Appl. No. 18/370,022.
Claims priority of application No. 2022-171316 (JP), filed on Oct. 26, 2022.
Prior Publication US 2024/0141139 A1, May 2, 2024
Int. Cl. C08K 9/00 (2006.01)
CPC C08K 9/00 (2013.01) [C08K 2201/005 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display device comprising:
a dot matrix display panel; and
a design layer disposed in front of a viewer side of the dot matrix display panel,
wherein:
the design layer is configured to transmit light emitted from a dot matrix display panel side and includes a design part that includes a binder resin and light-reflective colored particles dispersed in the binder resin,
the light-reflective colored particles reflect light having a specific wavelength in a visible spectrum while absorbing light having a wavelength other than the specific wavelength in the visible spectrum,
in a reflective display state in which no light is emitted from the dot matrix display panel side, the display device reflects external light to the viewer side and allows a viewer to observe a pattern of the design part, and
in a display state in which light is emitted from the dot matrix display panel side and then transmitted through the design layer, the display device displays an image without allowing the viewer to perceive a complementary color of a color perceived by the viewer in the reflective display state.