Samsung Electronics Co., Ltd.

Jong-Sung Lee

Jin-sung Kim

Byung-Koan Kim

Hye-Jin Jung

Dustin Yuk Lun Wai

Se-Moon Oh

A display drive integrated circuit includes a frame buffer, an output selector and a timing controller. The output selector selectively outputs one of image data read from the frame buffer and image data transmitted from a source external to the display drive integrated circuit. The timing controller controls output of the image data read from the frame buffer to the display panel in a self-refresh mode, and controls internal display timing to track external display timing when the display drive integrated circuit exits from the self-refresh mode to control the output selector to output the image data transmitted from the source to the display panel when the internal display timing is synchronized to the external display timing.

Display drive integrated circuit and image display system capable of controlling a self-refresh display

A power amplification apparatus includes a carrier amplifier and a peaking amplifier. In the apparatus, a detection and comparison controller detects an envelope signal from an input signal, compares a value of the envelope signal with a threshold, and generates a control signal corresponding to a threshold power. At least one switch performs a switching operation for turning on/off the peaking amplifier according to the control signal.

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Seoul, South Korea

Jong-Sung Lee