Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Patent
1997-09-02
2000-02-15
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
349 64, 349 61, G02F 11335
Patent
active
060258942
ABSTRACT:
An organic electroluminescence device is placed as a back light of a liquid crystal display panel. The organic electroluminescence device is constituted by a front electrode (#112) having transparency to visible light, a rear electrode (#113) having reflection to visible light and an organic electroluminescence layer (#114) for emitting light as a predetermined voltage is applied between the front and rear electrodes. A scatter control member (#120), located between the liquid crystal panel and the organic electroluminescence panel, passes incident light within a predetermined range without scattering and passes light outside the predetermined range with scattering. Preferably, the scatter control member is constituted by a plurality of lightguiding portions (#121) having transparency to visible light and a plurality of reflection films (#122) having a reflection property to visible light.
REFERENCES:
patent: 5703326 (1997-12-01), Yamada et al.
patent: 5739180 (1998-04-01), Taylor-Smith
patent: 5748271 (1998-05-01), Hikmet et al.
patent: 5777038 (1998-07-01), Nishikawa et al.
patent: 5903101 (1999-05-01), Kijima
Daiku Yasuhiro
Muto Tetsuo
Shioya Masaharu
Shirasaki Tomoyuki
Takei Manabu
Casio Computer Co. Ltd.
Horney Kari M.
Sikes William L.
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