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    • 4. 发明申请
    • Semiconductor intergrated circuit for display driving and electronic device having light emitting display
    • 用于显示驱动的半导体集成电路和具有发光显示器的电子设备
    • US20060227082A1
    • 2006-10-12
    • US11397684
    • 2006-04-05
    • Yasuhiro OgataTakayuki Keicho
    • Yasuhiro OgataTakayuki Keicho
    • G09G3/30
    • G09G3/3291G09G3/3233G09G2310/027G09G2320/0242G09G2320/0673G09G2360/144
    • The present invention provides a semiconductor integrated circuit for driving a light emitting panel such as an organic EL panel capable of displaying a picture with the optimum picture quality by changing a gray scale voltage and a gamma curve characteristic in accordance with brightness of the environment and specifications of a display used. A semiconductor integrated circuit for display driving is provided with a storing circuit such as a register or a ROM for storing a plurality of values for changing the amplitude of a gray scale voltage, and a storing circuit such as a register or a ROM for storing a plurality of values for changing the gamma curve characteristic. By selecting a value from a plurality of values in the storing circuit in accordance with an output of a photosensor and supplying the selected value to a gray scale voltage generation circuit, the gray scale voltage and the gamma curve characteristic can be dynamically changed.
    • 本发明提供一种用于驱动诸如有机EL面板的发光面板的半导体集成电路,其能够根据环境和规格的亮度改变灰度电压和伽马曲线特性来显示具有最佳图像质量的图像 使用的显示器。 用于显示驱动的半导体集成电路设置有诸如寄存器或ROM的存储电路,用于存储用于改变灰度级电压的幅度的多个值,以及诸如寄存器或ROM的存储电路,用于存储 用于改变伽马曲线特性的多个值。 通过根据光传感器的输出从存储电路中的多个值中选择一个值,并将选择的值提供给灰度级电压产生电路,可以动态地改变灰度级电压和伽马曲线特性。