Liquid crystal display device having particular green cut filter layer and blue cut filter layer
AssigneeFujitsu Limited
InventorsJunji Tomita, Masaki Nose, Tomohisa Shingai
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Abstract
A liquid crystal display device in which three cholesteric liquid crystal layers of selective reflection type are laminated, comprises: a first liquid crystal layer arranged on a device observation side selectively reflecting blue; a second liquid crystal layer arranged next to the first liquid crystal layer selectively reflecting green; a third liquid crystal layer arranged next to the second liquid crystal layer selectively reflecting red; and a green cut filter layer arranged between the green liquid crystal layer and the red liquid crystal layer selectively absorbing a light ray of a wavelength of 600 nm or less.
Claims6
A liquid crystal display device in which three cholesteric liquid crystal layers of selective reflection type are laminated, comprising:
- a first cholesteric liquid crystal layer arranged on a device observation side selectively reflecting blue;
- a second cholesteric liquid crystal layer arranged next to the first cholesteric liquid crystal layer selectively reflecting green;
- a third cholesteric liquid crystal layer arranged next to the second cholesteric liquid crystal layer selectively reflecting red;
- a green cut filter layer arranged between the second cholesteric liquid crystal layer and the third cholesteric liquid crystal layer selectively absorbing a light ray having a wavelength of 600 nm or less;
- and
- a blue cut filter layer arranged between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer selectively absorbing a light ray having a wavelength of 520 nm or less,
- wherein:
- each liquid crystal layer is sandwiched by two substrates, and the two substrates and the each liquid crystal layer constitute a panel;
- and
- the liquid crystal display device comprises two adhesive layers that bond a plurality of panels;
- wherein at least one of the green cut filter layer and the blue cut filter layer is formed on the liquid crystal layer side of the substrate of the panel and the electrode is formed on at least one of the green cut filter layer and the blue cut filter layer.
An electronic information terminal mounting a liquid crystal display device in which three cholesteric liquid crystal layers of selective reflection type are laminated, comprising:
- a first cholesteric liquid crystal layer arranged on a device observation side selectively reflecting blue;
- a second cholesteric liquid crystal layer arranged next to the first cholesteric liquid crystal layer selectively reflecting green;
- a third cholesteric liquid crystal layer arranged next to the second cholesteric liquid crystal layer selectively reflecting red;
- a green cut filter layer arranged between the second cholesteric liquid crystal layer and the third cholesteric liquid crystal layer selectively absorbing a light ray having a wavelength of 600 nm or less;
- and
- a blue cut filter layer arranged between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer selectively absorbing a light ray having a wavelength of 520 nm or less,
- wherein:
- each liquid crystal layer is sandwiched by two substrates, and the two substrates and the each liquid crystal layer constitute a panel;
- and
- the liquid crystal display device comprises two adhesive layers that bond a plurality of panels;
- wherein at least one of the green cut filter layer and the blue cut filter layer is formed on the liquid crystal layer side of the substrate of the panel and an electrode is formed on at least one of the green cut filter layer and the blue cut filter layer.
Dependencies are inferred from the claim text.