Lg Display Co., Ltd.

Electronics and Telecommunications Research Institute

MinKi Kim

Jinsung Kim

Yil Suk Yang

Jongwoo Kim

Sang Gi Kim

Jongdae Kim

Jimin Oh

Sewan Heo

JinCheol Hong

SeungChul Park

KiJeong Lee

Changhwan Seo

A display device can include a display panel having sub pixels configured to emit light of different colors, a data driver configured to output a data voltage to the sub pixels via data lines, and a timing controller configured to output power control signals for controlling a driving current which drives the data driver. The data driver can include source driving integrated circuits, each including power control circuits configured to generate the driving current in accordance with each of the power control signals, and amplifiers configured to be applied with the driving current to output the data voltage to each of the data lines.

Display device optimizing power control signal of source driver integrated circuit to optimize power consumption

A touch driving circuit, a touch display device, and a touch driving method are discussed, which are capable of reducing power consumption by dividing into an active mode and an idle mode according to a touch sensing type, shortening the touch driving period in the idle mode and reducing some operations related to the image displaying function.

Touch driving circuit, touch display device, and touch driving method thereof

According to an aspect of the present disclosure, the display device includes a timing controller configured to output a power control signal for controlling a driving current to the data driver. The data driver includes a plurality of source driving integrated circuits (SDICs) which each supplies the data voltage to each of the plurality of active areas. The timing controller generates the power control signal depending on a difference value between comparison data which is the maximum data transition value between adjacent pixel rows disposed in each of the plurality of active areas and edge comparison data which is the maximum data transition value between adjacent pixel rows disposed in the plurality of edge active areas. Thus, it is possible to improve an image quality at a boundary between the active areas.

Display device and driving method thereof

Disclosed are a display device and a driving method thereof, which solve a problem where consumption power of a sync side increases when a remote frame buffer is used by applying PSR technology and MBO technology to the sync side. The display device includes a display panel displaying an image, a source side generating raw digital video data and supplying first digital video data generated by omitting at least one active frame in the raw digital video data, a sync side receiving the first digital video data, copying digital video data of an active frame, which is adjacent to the at least one active frame, to the at least one active frame to generate second digital video data, and generating a data driver control signal, and a data driver receiving the second digital video data and the data driver control signal to supply data voltages to the display panel.

Disclosed is a spherical wheel motor including: a spherical rotor having freedom of rotation along surrounding magnetized directions; a stator formed in a dome shape enclosing the rotor and configured to form magnetization at various angles through a plurality of coils distributed therein, and impart the freedom of rotation to the rotor; and a driving unit configured to identify a position of the rotor, supply current to each coil of the stator according to the position of the rotor, and drive the rotor.

Spherical wheel motor

Disclosed is a power supply module for a hall sensorless BLDC motor, including: a high-voltage/large-current power device t applied with high voltage/large current and including a plurality of power devices driving the hall sensorless brushless direct current (BLDC) motor; a motor driving circuit sensing and controlling a positional signal or a velocity signal of the hall sensorless BLDC motor and generating a PWM control signal for controlling the hall sensorless BLDC motor; and a power device driving circuit driving the high-voltage/large-current power device according to the PWM control signal of the motor driving circuit, wherein the high-voltage/large-current power device, the power device driving circuit, and the motor driving circuit are CMOS-integrated on the same substrate.

Growing community of inventors

Gyeongsangbuk-do, South Korea

MinKi Kim