Lg Display Co., Ltd.

Ju Young Lee

Hong Sung Song

Woong Ki Min

Su Hyuk Jang

Sun Young Choi

Dong Hoon Cha

Jae Bum Chum

Disclosed herein are a liquid crystal display device which is capable of driving a liquid crystal using image signals supplied to two adjacent data lines, and a driving method thereof. The liquid crystal display device has a plurality of liquid crystal cells formed respectively in pixel areas defined by intersections of n gate lines and m data lines. Each of the liquid crystal cells includes a thin film transistor connected to any one of the gate lines and any one of two data lines adjacent respectively to left and right sides of a corresponding one of the liquid crystal cells, among the data lines, and a liquid crystal capacitor and a storage capacitor each formed between the other one of the two adjacent data lines and the thin film transistor.

Liquid crystal display device and driving method thereof

A method of providing data, an LCD and a driving method are disclosed. An image data voltage is inverted. A charge share voltage between the inverted image data voltages is used as a black data. The image data voltage and the black data voltage are applied in sequence, wherein the charge share voltage between the inverted image data voltages is applied as the black data voltage. Thus, motion blurring may be suppressed and manufacturing cost may be reduced because it is unnecessary to generate the black data voltage separately. Also, the typical driving frequency is used even if the black data voltage is used, to reduce cost.

Method of providing data, liquid crystal display device and driving method thereof

A liquid crystal display for automatically adjusting a swing of a gamma reference voltage which is used for determining a gray scale level of a frame that is driven with a doubled frame frequency in real time is disclosed. In the liquid crystal display, a frequency converter doubles a frame frequency of an inputted frame to generate a doubled odd numbered frame and a doubled even numbered frame. A timing controller generates a gamma swing control signal which controls a swing of a gamma reference voltage which is used for determining gray scale levels of the doubled odd numbered frame and the doubled even numbered frame. And a gamma reference voltage generator generates first gamma reference voltages having a different level corresponding to a high gray scale and second gamma reference voltages having a different level corresponding to a low gray scale, and the gamma reference voltage generator inversely swings the first gamma reference voltages of high gray scale and the second gamma reference voltages of low gray scale in accordance with the gamma swing control signal for a driving period of the doubled odd numbered frame and inversely swings the first gamma reference voltages of high gray scale and the second gamma reference voltages of low gray scale in accordance with the gamma swing control signal for a driving period of the doubled even numbered frame.

Liquid crystal display and driving method thereof

Disclosed herein are a liquid crystal display device which is capable of driving a liquid crystal using image signals supplied to two adjacent data lines, and a driving method thereof. The liquid crystal display device has a plurality of liquid crystal cells formed respectively in pixel areas defined by crossings of a plurality of gate lines and a plurality of data lines. Each of the liquid crystal cells includes a thin film transistor connected to any one of the gate lines and any one of the data lines, and a liquid crystal capacitor and a storage capacitor each formed between a data line adjacent thereto, among the data lines, and the thin film transistor. The thin film transistors of the liquid crystal cells are alternately arranged between and alternately connected to every two vertically adjacent ones of the gate lines along the gate lines.

Liquid crystal display device with first and second image signals about a middle voltage

Provided are a data converting device for improving image quality, a method thereof, and an LCD device having the same. The data converting device includes a polarity signal generating part and a data varying part. The polarity signal generating part generates a polarity signal inverting polarity of a data signal in turns by a period of n fields. The data varying part differently varies data signals corresponding to respective field periods within the period of the n fields.

Data converting device, method thereof, and liquid crystal display device having the same

A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines, and a plurality of liquid crystal cells, the plurality of liquid crystal cells associated to a first and second liquid crystal cell groups, a data drive circuit to supply a data voltage to the data lines in response to a polarity control signal, a gate drive circuit to supply a scan pulse to the gate lines, and a polarity control circuit to generate different polarity control signals for each frame period and to control data voltage frequencies of the first and second liquid crystal cell groups to be different from each other.

A liquid crystal display panel includes a plurality of gate lines; a plurality of first data lines and a plurality of second data lines crossing the gate lines; and a plurality of pixels defined by crossings of a plurality of gate lines with a plurality of first data lines and a plurality of second data lines, wherein each of the pixels includes: a first thin film transistor connected to a gate line and one of the first data line; a second thin film transistor connected to one of the gate lines and one of the second data lines; and a liquid crystal cell connected to the first and second thin film transistors that drive the liquid crystal cell using a potential difference between first and second data voltages supplied to the one of the first data lines and the one of the second data lines.

Liquid crystal panel having the dual data lines, data driver, liquid crystal display device having the same and driving method thereof

A display device including a liquid crystal display (LCD) device with an improved image quality is provided. The LCD includes a liquid crystal (LC) panel having horizontal lines and vertical lines arranged in a matrix configuration; a gate driver for supplying a scan signal to the horizontal lines; and a data driver inverting a polarity of interlace pixel data by a unit of at least two fields, converting the interlace pixel data every field according to a gamma voltage, and supplying the converted pixel data to the vertical lines.

Growing community of inventors

Gyeongsangbuk-do, South Korea

Ju Young Lee