Display device
View Patent ↗The purpose of the present invention is to realize a flexible display includes a resin substrate and a TFT having an oxide. The structure of the invention is as follows. A display device comprising: a substrate formed by resin, an inorganic insulating film and a thin film transistor including a semiconductor, wherein an infra-red light reflecting film is formed between the substrate and the thin film transistor.
1. A display device comprising:
a substrate formed by resin, a first inorganic insulating film, a second inorganic insulating film and a thin film transistor including a semiconductor,
wherein a first infra-red light reflecting film is formed between the substrate and the first inorganic insulating film,
a second infra-red light reflecting film is formed between the first inorganic insulating film and the second inorganic insulating film,
the second inorganic insulating film is formed between the second infra-red light reflecting film and the thin film transistor.
2. The display device according to claim 1 , a reflectivity of the first infra-red light reflecting film to an infra-red light of a wave length of a 2 μm is 75% or more, and
a reflectivity of the second infra-red light reflecting film to an infra-red light of a wave length of a 2 μm is 75% or more.
3. The display device according to claim 1 , the first infra-red light reflecting film covers all of a display area.
4. The display device according to claim 1 , the first infra-red light reflecting film is formed by ITO.
5. The display device according to claim 1 , the second infra-red light reflecting film covers all of a display area.
6. The display device according to claim 1 , the second infra-red light reflecting film is fainted by ITO.
7. The display device according to claim 1 , the second infra-red light reflecting film overlaps with a channel of the TFT in a plan view, and does not overlap all of a display area.
8. The display device according to claim 7 , the second infra-red light reflecting film overlaps with a channel of the TFT in a plan view, and does not overlap entirety of a display area.
9. The display device according to claim 7 , the second infra-red light reflecting film is mono layer or multi layered film composed of a metal film or an alloy film.
10. The display device according to claim 1 , wherein the resin is polyimide.