Invention Grant
- Patent Title: Dynamic voltage display driver
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Application No.: US16132267Application Date: 2018-09-14
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Publication No.: US11263967B2Publication Date: 2022-03-01
- Inventor: Gregory Nielsen , Chau Van Ho , Mika Juhani Rintamaeki , Samu Matias Kallio
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agency: Holzer Patel Drennan
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; G09G3/20

Abstract:
OLED display color output may vary substantially as a function of display temperature, which changes over time. Luminance of each of the pixels is defined by the current flowing therethrough, which is a function of the applied voltage and resistivity of the pixels. Temperature affects the resistivity of the pixels and thus the current flowing therethrough if voltage is held constant. The temperature response of red, green, and blue pixels differs, particularly at low applied voltage levels. As a result, the relative luminance of red, green, blue may vary with temperature changes, which may yield an undesirable overall color variance. The presently disclosed systems and methods dynamically adjust driving voltage to maintain color quality within a desired specification, while also reducing (or in some implementations, minimizing) power consumption of the OLED display.
Public/Granted literature
- US20200090588A1 DYNAMIC VOLTAGE DISPLAY DRIVER Public/Granted day:2020-03-19
Information query
IPC分类: