The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1997
Filed:
Mar. 08, 1995
Choon-yul Oh, Suwon, KR;
Sun-jeong Choi, Suwon, KR;
Samsung Display Devices Co., Ltd., Kyungki-do, KR;
Abstract
An apparatus and method for driving a multi-level gray scale display are provided. The apparatus displays multi-level gray scale without an analog driving IC and includes a row function generator for generating a row function, a column signal operator for receiving and operating the row function and display data to output a column data, a standard voltage selection signal generator for receiving a clock to generate a standard voltage selection signal, a column signal generator for generating a plurality of levels of column standard voltages and dividing the column standard voltage selected according to the standard voltage selection signal to generate a plurality of levels of column voltage so as to drive the column electrode according to the column data, and a row signal generator for generating a plurality of row standard voltages and dividing the row standard voltage selected according to the standard voltage selection signal to generate a plurality of levels of row voltage so as to drive the row electrode according to the row function.