Db Hitek Co., Ltd.

Seung Jin Yeo

Jung Nyoung Heo

Kyoung Tae Kim

Jae Hong Ko

Mun Gyu Kim

Woo Hyoung Seo

Hoon Sang Ryu

Dong Gwi Choi

A display driver integrated circuit (DDI) includes a level shifter unit configured to convert a level of a control signal to a voltage in a range that equal to or greater than a first voltage and is equal to or less than a second voltage and output a switch control signal, and a voltage generator including a capacitor and a switch that is turned on or off based on or in response to the switch control signal and configured to generate at least one third voltage.

Display driver IC and display apparatus including the same

A half-power buffer and/or amplifier is disclosed. The half-power buffer and/or amplifier includes an amplifying unit including first and second transistors connected between a first voltage source having a first voltage and a third voltage source having a third voltage, and a first output node configured to connect the first and second transistors and to output a voltage over a first voltage range between the first and third voltages, a second output buffer unit including third and fourth transistors connected between a second voltage source having a second voltage and the third voltage source, and a second output node configured to connect the third and fourth transistors and to output a voltage over a second voltage range between the second and third voltages, and a first charge share switch unit connected between the gate of the second transistor and the first voltage source, and configured to perform a charge share and/or equalization operation.

Half-power buffer and/or amplifier

Growing community of inventors

Gyeonggi-do, South Korea

Seung Jin Yeo