| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit (IC) for display driving of a self-luminous panel such as an organic electroluminescence (EL) panel, capable of displaying a most suitable quality image by changing a grayscale voltage and a gamma curve characteristic according to surrounding brightness and a specification of a display device which is used. <P>SOLUTION: In the semiconductor IC for display driving, a memory circuit such as a register (KA0R) and a ROM for storing a plurality of values for changing an amplitude of a grayscale voltage, and the other memory circuit such as a register (KC0R) and a ROM for storing a plurality of values for changing a gamma characteristic. The grayscale voltage and the gamma curve characteristic are dynamically changed by selecting a suitable value of the plurality of values in the memory circuit according to an output of a photo sensor and by supplying it to a grayscale voltage generation circuit. <P>COPYRIGHT: (C)2007,JPO&INPIT |
