Method for maintaining LED brightness, LED driving circuit and display device

Method for maintaining LED brightness, LED driving circuit and display device

A method for maintaining LED brightness is provided and exemplarily includes steps of: providing a LED driving circuit capable of performing current detection and compensation; performing a detection based on the LED driving circuit to obtain mapping relationships among current, brightness and volta...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Chen, Yuyeh
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:A method for maintaining LED brightness is provided and exemplarily includes steps of: providing a LED driving circuit capable of performing current detection and compensation; performing a detection based on the LED driving circuit to obtain mapping relationships among current, brightness and voltage; and monitoring a current flowing through a LED driven by the LED driving circuit, and performing a compensation according to the monitored current and the mapping relationships to maintain brightness of the LED. Moreover, a LED driving circuit is also provided and includes first through fourth transistors and a capacitor. In addition, a display device adopting the method for maintaining LED brightness or the LED driving circuit is also provided.