Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Lg.phillips Lcd Co., Ltd.

Hee Jung Hong

Kyung Joon Kwon

Hee Jeong Park

Eui Yeol Oh

Seong Ho Cho

Tae Ho You

Min Sung Kang

Seong Gyun Kim

Nam Yong Kong

Hwan Seong Yu

Hoon Jang

Jae Woo Lee

Myong Gi Jang

Hong Chul Kim

Yong Ik Bang

Nam Yong Gong

Joon Ha Park

Byeong Hyeon Ahn

Haang Rhym Chu

Cheon Suck Lee

Hak Mo Hwang

Sang Kyu Park

Dae Ho Cho

Hee Won Ahn

Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.

Display panel and display device including the same

Provided are a display device and a method for driving the same. The display device includes: a plurality of display modules; a plurality of display module drivers for respectively driving the display modules; a data divider receiving data signals for displaying an image on the display device and separating the received data signals into output data signals corresponding to each respective display module driver; and a timing control signal generator for generating a timing control signal to be supplied commonly to the display module drivers.

Display device to drive a plurality of display modules for dividing data signals

Display device to drive a plurality of display modules for dividing data signals and method for driving the same

A liquid crystal panel includes a plurality of display regions that correspond to the division images. The number of the division images can be set with consideration of the number of lamps covering the display regions. The average brightness of an entire image is compared with the average brightness of the division images so as to vary brightness of each division image according to a comparison result. Light that corresponds to the varied brightness is illuminated to each display region. Therefore, a dark division image is displayed darker and a bright division image is displayed brighter in the image of one frame, thereby enhancing a contrast ratio and reducing power consumption.

Liquid crystal display device and method for driving the same

A touch panel display device includes a display panel having a scroll bar, an upper transparent sheet bonded to the display panel, a lower transparent sheet separated from the upper transparent sheet, an upper transparent film formed on the upper transparent sheet having a first electrode is formed perpendicularly crossing the scroll bar, and a lower transparent film formed on the lower transparent sheet having a second electrode.

Touch panel display device and method of fabricating the same

A mobile display device driving apparatus and method which can reduce power consumption are disclosed. The driving apparatus includes a liquid crystal panel a battery, a power saving mode signal generator that detects the remaining power of the battery and generates a power saving mode signal based on the detected power to set a power saving mode of the liquid crystal panel. A controller sets a gain value in response to the power saving mode signal, converts external three-color input data into four-color data based on the set gain value and generates a dimming signal in response to the power saving mode signal. A panel driver displays an image based on the four-color data. An inverter generates a lamp drive voltage based on the dimming signal, and a backlight unit generates light in response to the lamp drive voltage and irradiates the generated light to the liquid crystal panel.

Apparatus and method for driving mobile display device

A liquid crystal display device capable of improving reliability of a backlight unit is disclosed. The liquid crystal display device includes: a backlight dimming modulating unit configured to modulate an internal algorithm backlight dimming control signal using an external input algorithm backlight dimming control signal and to maintain a dimming duty equal to or wider than an allowable dimming range of a backlight unit; arithmetic unit configured to multiply the external input algorithm backlight dimming control signal by the modulated internal algorithm backlight dimming control signal and to output a final backlight dimming control signal; and a data modulating unit configured to modulate image data using the external input algorithm backlight dimming control signal corresponding to the modulated final backlight dimming control signal.

Liquid crystal display device

A driving system for a liquid crystal display device includes a system unit to supply image data to be displayed on a liquid crystal panel, the system unit generating a system dimming signal, an inverter unit to control luminance of a backlight unit, the inverter unit receiving the system dimming signal, and a control unit to control display of images on the liquid crystal panel, the control unit receiving the system dimming signal from the inverter unit and outputting a control dimming signal to the inverter unit, wherein the inverter unit adjusts luminance of the backlight unit using the control dimming signal input from the control unit.

Driving system capable of improving contrast ratio for liquid crystal display device, liquid crystal display device including the same, and driving method using the same

A driving apparatus and method are presented to drive lamps that irradiate a liquid crystal display panel of a liquid crystal display device. A picture implementing period, during which a picture is implemented by the liquid crystal display device, and a shorter, scanning period before the picture implementing period are established. An output power supplied to the lamps to set a reference brightness is determined. A lamp driver changes a duty ratio and/or an amplitude of an AC signal supplied to the lamps to establish the reference brightness during the scanning period. The duty ratio/amplitude of the AC signal is adjusted dependent on the characteristics of the liquid crystal material in the liquid crystal display.

Apparatus and method for driving lamp of liquid crystal display device

A mobile display device driving apparatus and method which can reduce power consumption are disclosed. The driving apparatus includes a liquid crystal panel having a plurality of liquid crystal cells each formed in sub-pixel areas of four colors, a battery charged with a voltage, a power saving mode signal generator that detects the remaining power of the battery and generates a power saving mode signal based on the detected power to set a power saving mode of the liquid crystal panel. A controller sets a gain value in response to the power saving mode signal, converts external three-color input data into four-color data based on the set gain value and generates a dimming signal in response to the power saving mode signal. A panel driver displays an image based on the four-color data on the liquid crystal panel. An inverter generates a lamp drive voltage based on the dimming signal, and a backlight unit generates light in response to the lamp drive voltage and irradiates the generated light to the liquid crystal panel.

Mobile display device driving apparatus and method that can reduce power consumption

A method for controlling luminance of an edge type backlight unit having a plurality of lamps at opposite sides of a light-guiding plate is provided that includes: analyzing luminance data for each frame of an image before outputting the image; selecting a backlight luminance level from a Look-Up Table LUT that classifies the luminance according to the analyzed luminance data; outputting lamp on/off control signals according to the selected luminance level; and providing lamp on/off signals to respective lamps according to the lamp on/off control signals.

Method for controlling luminance of backlight unit

A liquid crystal display device includes a liquid crystal display panel with four colors of sub-pixels, and a backlight unit having light emitting diodes of at least five colors to apply multi-primary light to the liquid crystal display panel.

Liquid crystal display device and apparatus and method for driving the same

A liquid crystal display device including a liquid crystal display panel, a lamp for emitting light to the a liquid crystal display panel, a timing controller for generating a lamp control signal to control a light-on time of the lamp, and an inverter for controlling a light-on and a light-off of the lamp according to the lamp control signal while limiting current and maintaining power supplied to the lamp regardless of the light-on time for the lamp.

Growing community of inventors

Seoul, South Korea

Hee Jung Hong