Patent ID: 6856306
Filing Date: 2005-02-15
Classification: G09G

Abstract:
1. A display data processing circuit comprising: a storing section to store a power value of a decimal portion of a coefficient setting value of a ratio of a gray-scale value of input display data to a number of gray-scale levels of said input display data; a processing section to perform an arithmetic operation on a power value of an integral portion of said coefficient setting value of a ratio of said gray-scale value of input display data to a number of gray-scale levels of said input display data and to obtain a value by multiplication among a value acquired by said arithmetic operation, a value read from said storing section, and a number of gray-scale levels of said input display data; and a table section to convert a gray-scale value of said input display data to a gray-scale value of output display data according to said coefficient setting value by storing a value obtained by said multiplication performed by said processing section which corresponds to all values of gray-scale levels that said input display data is able to take on and by reading said value obtained by said multiplication performed by said processing section which corresponds to a gray-scale value of said input display data.