Lg Display Co., Ltd.

Hyun Woo Jang

Ki Yong Kim

Young Woo Jo

Jae Kyu Park

Se Min Lee

Yong Joong Yoon

Jae Jung Han

Ji Eun Son

Hyo Sung Lee

Joo Young Yeon

Han Tae Seo

Jae Yeon Song

A display device having a touch sensor can include a display panel including a plurality of touch electrodes, and a readout integrated circuit (IC). Also, the readout IC is configured to apply a touch driving signal to the plurality of touch electrodes and amplify charges from the plurality touch electrodes according to an amplifier reset signal to generate an amplifier output voltage, and differentially adjust a toggle timing of the amplifier reset signal based on positions of the plurality of touch electrodes to control a level of the amplifier output voltage.

Display device having touch sensor and method for driving the same

A display device having a touch sensor of the present disclosure includes a display panel including a plurality of touch electrodes, a touch sensing circuit configured to apply a touch driving signal to the touch electrodes and amplify charges flowing from the touch electrodes based on an amplifier reset signal so as to generate an amplifier output voltage, and an amplifier output control circuit configured to adjust at least one of a toggle timing of the amplifier reset signal and a voltage amplitude of the touch driving signal so as to differentially control a level of the amplifier output voltage depending on positions of the touch electrodes.

A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.

Curved liquid crystal display device

Provided are a backlight unit and a display device having the same. The display device according to an embodiment includes a display panel and a backlight unit for supplying light to the display panel. The backlight unit according to an embodiment includes a light guide plate, a light source disposed at a side of the light guide plate, a sensor sensing brightness or color temperature of natural light, an adaptive controller generating a voltage level signal to compensate for the brightness or color temperature of natural light, and a light source driver supplying a voltage corresponding to the voltage level signal to the light source. Thus, although the brightness or the color temperature of the natural light varies, uniform brightness or color temperature can be achieved by adjusting the brightness or the color temperature of the artificial light generated from the light source, thus displaying high-definition and high-quality images.

Backlight unit and display device having the same

Growing community of inventors

Goyang-si, South Korea

Hyun Woo Jang