Display device
OwnerMasaki Nishikawa, Masahiro Nishizawa +1inventors
InventorsMasaki Nishikawa, Masahiro Nishizawa, Hidetsugu Matsukiyo
Life of this patent
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Abstract
An image display device includes phosphor layers which are formed on an inner surface of a light transmitting face plate, a black matrix film which is formed on the inner surface of the face plate in a state that the black matrix film defines the phosphor layers into phosphor layers of respective colors, and electron beam sources which are arranged in the inside of the evacuated envelope in a state that the electron beam sources face the phosphor layers in an opposed manner and irradiates electron beams to the phosphor layers. An area occupying ratio of the black matrix film as viewed from an image display screen side of the face plate is set within the range of 60% to 95%.
Claims7
An image display device comprising:
- an evacuated envelope which has a light transmitting face plate;
- phosphor layers which are formed on an inner surface of the face plate;
- a black matrix film which is formed on the inner surface of the face plate in a state that the black matrix film defines the phosphor layers;
- and
- electron beam sources which are arranged in the inside of the evacuated envelope in a state that the electron beam sources face the phosphor layers in an opposed manner and irradiate electron beams to the phosphor layers, wherein
- an area occupying ratio of the black matrix film as viewed from an image display screen side of the face plate is set within the range of 60% to 95%.
An image display device comprising:
- an evacuated envelope which has a light transmitting face plate;
- phosphor layers which are formed on an inner surface of the face plate;
- a black matrix film which is formed on the inner surface of the face plate in a state that the black matrix film defines the phosphor layers;
- and
- electron beam sources which are arranged in the inside of the evacuated envelope in a state that the electron beam sources face the phosphor layers in an opposed manner and irradiates electron beams to the phosphor layers, wherein
- an area occupying ratio of the black matrix film as viewed from an image display screen side of the face plate is set within the range of 83% to 94%.
An image display device comprising:
- an evacuated envelope which has a light transmitting face plate;
- phosphor layers which are formed on an inner surface of the face plate;
- a black matrix film which is formed on the inner surface of the face plate in a state that the black matrix film defines the phosphor layers;
- and
- electron beam sources which are arranged in the inside of the evacuated envelope in a state that the electron beam sources face the phosphor layers in an opposed manner and irradiate electron beams to the phosphor layers, wherein
- an area occupying ratio of the black matrix film as viewed from an image display screen side of the face plate is set within the range of 70.6% to 94.1%.
Dependencies are inferred from the claim text.