Abstract:
A liquid crystal display apparatus includes a liquid crystal display module, an integrated driving circuit, and a power supply circuit. The integrated driving circuit is used for driving the liquid crystal display module to display video frames according to a video signal. The integrated driving circuit includes a pulse width modulation (PWM) control circuit for generating N PWM signal sequentially, where N is a positive integer. The power supply circuit is employed to output N DC voltage signals sequentially. A part of the N DC voltage signals is applied to the liquid crystal display module and another part of the N DC voltage signals is applied to the integrated driving circuit.
Abstract:
A liquid crystal display (LCD) device connectable to a power source includes a substrate, a panel including an array of thin film transistors provided on the substrate, and a first integrated circuit (IC). The first IC includes a timing controller for providing control signals and video signals, a source driver for receiving the control signals and video signals and driving the panel, and a common voltage circuit for providing a common voltage to the panel.
Abstract:
The present application describes a programmable current controller for regulating an operating driving current flowing through an illumination source. The driving current is regulated according to a digital reference corresponding to a predetermined operating current for the illumination source. The digital reference can be converted into a reference electrical parameter (current or voltage). The reference electrical parameter is compared with an operating electrical parameter (current or voltage) corresponding to the operating driving current of the illumination source. Based on the comparison, a driving bias current is generated, which is used to regulate the operating driving current of the illumination source.
Abstract:
A liquid crystal display (LCD) panel module and scan driver thereof is disclosed. The LCD panel module includes a LCD panel having data electrodes and scan electrodes, a scan driver and a data driver. The scan driver includes a timing controller, a scale-adjusting function circuit and an image gamma modulation circuit. The timing controller generates a first control signal and second control signal according to a first clock signal. The scan driver is controlled by the first control signal to drive the scan electrodes. The scale-adjusting function circuit adjusts an image scale corresponding to a first display signal and outputting a second display signal accordingly. The image gamma modulation circuit performs a gamma modulation on the second display signal to output a third display signal. The data driver, disposed on the LCD panel, drives the data electrodes to display pictures on the LCD panel according to the second control signal.