Holzer Patel Drennan
Dynamic voltage display driver
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.
Microsoft Technology Licensing, LLC
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Chau Van Gregory Samu Matias Mika Juhani
Ho Nielsen Kallio Rintamaeki