Reflection type diffusing liquid crystal display with selective reflecting means located between the substrates
First Claim
1. A reflective flat-panel display device comprising a display panel which is suitable for modulating an illumination beam with image information, said panel having a light incident side and an opposite side, the display panel comprising a diffusing liquid crystalline material, a first substrate on the light incident side and a second substrate on the opposite side enclosing the liquid crystalline material, and reflecting means between said first and second substrates which reflect light which is incident at an angle larger than a given angle of incidence θ
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c and pass light which is incident at an angle smaller than said given angle of incidence θ
c, said display device further comprising an absorbing element which absorbs light passed by said reflecting means.
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Abstract
The invention relates to a reflective flat-panel display device (1) comprising a display panel (3) which is suitable for modulating an illumination beam with image information. The display panel (3) comprises a diffusing liquid crystalline material (5) and a first and a second substrate (7, 9) enclosing the liquid crystalline material (5) and reflecting means which reflect light incident at an angle which is larger than a given angle of incidence θc. The device further includes an absorbing element (10) which absorbs light passed by the reflecting means.
44 Citations
10 Claims
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1. A reflective flat-panel display device comprising a display panel which is suitable for modulating an illumination beam with image information, said panel having a light incident side and an opposite side, the display panel comprising a diffusing liquid crystalline material, a first substrate on the light incident side and a second substrate on the opposite side enclosing the liquid crystalline material, and reflecting means between said first and second substrates which reflect light which is incident at an angle larger than a given angle of incidence θ
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c and pass light which is incident at an angle smaller than said given angle of incidence θ
c, said display device further comprising an absorbing element which absorbs light passed by said reflecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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c and pass light which is incident at an angle smaller than said given angle of incidence θ
Specification