Frishauf, Holtz, Goodman, Langer & Chick, P.C.
Scatter control member for organic electroluminescent light source for passing light with or without scattering depending upon an incident angle
 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. 
Casio Computer Co., Ltd.
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Hiroyasu Yasuhiro Masaharu Tetsushi Tetsuo Manabu Tomoyuki
Yamada Daiku Shioya Yoshida Muto Takei Shirasaki