led driver circuits The design in Figure 3 represents a constant current chopper driver that provides a dc current with 10% ripple to an LED string used to edge light an LCD.

Abstract: Aiming at the problem of unstable liquid crystal output caused by unstable traditional power supply voltage, an LCD driver circuit with high-performance charge pump is designed. Compared to ...

This paper presents a novel gamma correction circuit for overcoming electro-optic non-linearity of LCD. It has a good phase characteristic and a considerable bandwidth for video signal. The design can ...

CAMBRIDGE, UK — SV Probe, a wholly owned subsidiary of Ellipsiz Ltd, announced GoldTouch, an LCD probe card exclusively aimed at testing LCD driver integrated circuits with gold pads. The card ...

Conventional LCD driver probe cards have a brief life span, largely due to the fragility of the probes, leading to costly repairs and replacements. The GoldTouch™ probe card offers a much lower cost ...

TDK-LAMBDA ALD Series of multi-output dc-dc backlight LED drivers arranged in 2, 3 and 4 string configurations provide wide-range dimming controls with resistive, analog or PWM inputs that provide ...

The chips contain all of the circuits needed to control and drive displays up to 65x128, including graphics functions and a selectable interface for connection to I 2 C, serial or parallel ports ...

STMicroelectronics has extended its portfolio of energy efficient solutions for mobile devices with the addition of a new IC for lcd and keypad backlights comprising white leds. The STLA02 is said to ...