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:
Jul. 29, 2008
Filed:
Aug. 13, 2004
Hiroyuki Ikeda, Gifu, JP;
Hiroyuki Ikeda, Gifu, JP;
Sony Corporation, , JP;
Abstract
A fixed pixel display device has a construction such that the leading-edge and trailing-edge waveforms of a voltage to be applied to a data electrode can be made steep. The fixed pixel display device is provided with scanning electrodes, data electrodes connected to actuation drivers (), and light-emitting regions. Each of the actuation drivers (), includes a switching circuit, an output circuit (), and a subtraction circuit (). The switching circuit is equipped with a first switching circuit (), a second switching circuit (), and a comparator (). When a difference (D-D) between values of data for controlling states of light emission at light-emitting regions, composed by the scanning electrodes in mand (m−1)rows, is not smaller than a first reference value [not greater than a second reference value], the first switching circuit () [the second switching circuit ()] is maintained in an ON state to apply a first voltage V[a second voltage V] to the data electrode in an ncolumn. When the difference is smaller than the first reference value and is greater than the second reference value, the first and second switching circuits, () and (), are maintained in OFF states, respectively.