Substrate for electro-optical device, electro-optical device and electronic apparatus
AssigneeSeiko Epson Corporation
InventorKeiji Takizawa
Life of this patent
Estimating the term…
Abstract
A substrate 121 has a reflecting layer 122 formed thereon, the reflecting layer 122 having a mirror surface on the substrate 121 side. When light is emitted from light transmitting regions 120T, a display mode is achieved in which a desired display mode is performed according to the state of the voltage applied to a liquid crystal 130. Also, when the voltage applied to the liquid crystal 130 is less than the threshold value, and a backlight 140 is turned off to substantially cut off light transmitted through all light-transmitting regions 120T, a mirror mode is set in which the entire surface is seen as a mirror surface by the mirror surface of the reflecting layer 122. Therefore, the display screen of the electro-optical device 100 can be used as a mirror.
Claims14
A substrate for an electro-optical device comprising:
- a transparent substrate;
- a reflecting layer disposed on the transparent substrate remote from a viewing side of the transparent substrate and having a mirror surface on the transparent substrate side;
- a plurality of light-transmitting regions comprising apertures of the reflecting layer, for transmitting light;
- and
- a polarizer on an opposite side of the substrate than the reflecting layer, only the substrate being interposed between the polarizer and the reflecting layer.
An electro-optical device comprising:
- a reflecting layer;
- an electro-optical material;
- and
- an electric field applying section that applies an electric field to the electro-optical material for each pixel of the device, the electric field applying section selectively switching application of electric field between:
- a state wherein light exits from the electro-optical material to switch to a display mode for achieving a plurality of display types on a display screen by the pixels and
- a state that prevents light from exiting from the electro-optical material to switch to a mirror mode for visualizing the display screen as a mirror surface by light reflected from the reflective layer.
An electro-optical device comprising:
- a transparent substrate;
- a reflecting layer disposed behind the transparent substrate and having a mirror surface on the transparent substrate side;
- an electro-optical material disposed behind the reflecting layer;
- and
- a plurality of light-transmitting regions in which the reflecting layer is not formed;
- wherein controlled light is emitted from the electro-optical material through the light-transmitting regions and the transparent substrate.
Dependencies are inferred from the claim text.