Scatter control member for organic electroluminescent light sour

Details Scatter control member for organic electroluminescent light sour Scatter control member for organic electroluminescent light sour

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

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