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. 26, 2025
Filed:
May. 17, 2024
Himax Technologies Limited, Tainan, TW;
Hui Wen Chang, Tainan, TW;
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Abstract
A gamma reference voltage generator includes a voltage difference generating circuit, a selection voltage generating circuit and a voltage calculating circuit. The voltage difference generating circuit generates a first voltage difference and a second voltage difference. The selection voltage generating circuit generates an initial voltage and receives a power source voltage and selectively outputs the initial voltage or the power source voltage as a selection voltage according to a voltage level of the power source voltage. The voltage calculating circuit receives the selection voltage, the first voltage difference and the second voltage difference and correspondingly output a first gamma reference voltage and a second gamma reference voltage, in which the first gamma reference voltage is a sum of the selection voltage and the first voltage difference, and the second gamma reference voltage is a difference between the selection voltage and the second voltage difference.