KR20080105827A - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

Info

Publication number
KR20080105827A
KR20080105827A KR1020070053894A KR20070053894A KR20080105827A KR 20080105827 A KR20080105827 A KR 20080105827A KR 1020070053894 A KR1020070053894 A KR 1020070053894A KR 20070053894 A KR20070053894 A KR 20070053894A KR 20080105827 A KR20080105827 A KR 20080105827A
Authority
KR
South Korea
Prior art keywords
data
liquid crystal
crystal display
green
red
Prior art date
Application number
KR1020070053894A
Other languages
Korean (ko)
Inventor
이동훈
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020070053894A priority Critical patent/KR20080105827A/en
Publication of KR20080105827A publication Critical patent/KR20080105827A/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0205—Simultaneous scanning of several lines in flat panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display

Abstract

A liquid crystal display device is provided to increase the data charging time in a field sequential driving system. A liquid crystal display device comprises m X k data lines, a liquid crystal display panel(2), a data driving unit(4), a gate driving unit(6), and a backlight unit. The liquid crystal display panel has m X n resolution. The data driving part supplies data to the k data lines(D1,D2,D3...). A gate driving part supplies scan pulse to k gate lines(G1,G2,G3...). The backlight unit is time-division operated to a plurality of subframes divided in 1 frame duration, and time division indicates red(8a), blue(8c), and green(8b) data in 1 frame duration.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

1 is a view showing driving of a general liquid crystal display device.

2 is a view showing driving of a conventional field sequential liquid crystal display device;

3 illustrates a liquid crystal display according to an exemplary embodiment of the present invention.

4 is a view illustrating driving of the liquid crystal display shown in FIG. 3;

<Brief description of symbols for the main parts of the drawings>

2 liquid crystal display panel 4 data driver

6 gate driver 8 backlight unit

10: pixel string

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display, and more particularly, to a liquid crystal display capable of increasing the charging time of data in a field sequential driving method.

In general, the liquid crystal display device has a trend that the application range is gradually widened due to the characteristics such as light weight, thin, low power consumption. In accordance with this trend, liquid crystal displays are used in office automation equipment, audio / video equipment, and the like. In such a liquid crystal display, a transmission amount of a light beam is adjusted according to a signal applied to a plurality of control switches arranged in a matrix to display a desired image on a screen. To this end, the liquid crystal display includes a liquid crystal display panel in which liquid crystal cells are arranged in a matrix, and a driving unit for driving the liquid crystal display panel.

The liquid crystal display panel is formed by bonding a thin film transistor array substrate on which a thin film transistor array is formed and a color filter array substrate on which a color filter array is formed, with the liquid crystal layer interposed therebetween.

Data lines and gate lines that are orthogonal to each other are formed on the thin film transistor array substrate, and liquid crystal cells are formed in each region formed by the orthogonality of the data lines and the gate lines. The thin film transistor connected to the intersection of the data lines and the gate lines supplies the data supplied through the data line to the pixel of the liquid crystal cell in response to the scan pulse of the gate line.

A black matrix, a color filter, and the like are formed on the color filter array substrate.

The driver includes a data driver and a gate driver. The data driver supplies data to the data lines, and the gate driver supplies scan pulses to the gate lines.

Since the liquid crystal display is not a self-luminous display, a separate backlight is required. Types of backlight include Cold Cathode Flourscent Lamps (CCFLs), External Electrode Flourscent Lamps (EEFLs), and Light Emitting Diodes (LEDs). The backlight generates white light, and irradiates white light to liquid crystal cells to which red, green, and blue data are simultaneously applied through the thin film transistor turned on by the scan pulse. As a result, the white light irradiated to the liquid crystal cell is irradiated to the red, green, and blue color filters with luminance according to the data applied to each liquid crystal cell, and is changed into red, green, and blue light, respectively. The liquid crystal display panel displays a desired color by combining red, green and blue light.

A general liquid crystal display having such a configuration has a disadvantage in that light is lost while passing through the color filter due to light absorption of the color filter, and thus the luminance is low, and the color purity is low by the color filter. In addition, when the LCD is driven as a hold type that keeps the backlight on, power consumption is large because the backlights must be kept on. In order to solve such a disadvantage, a field sequential liquid crystal display has been proposed.

In the field sequential liquid crystal display, the red light source, the green light source, and the blue light source are sequentially driven instead of the color filter by color. That is, a red light source is turned on when red data is applied to the liquid crystal cell, a green light source is turned on when green data is applied to the liquid crystal cell, and a blue light source is turned on when blue data is applied to the liquid crystal cell.

FIG. 1 is a diagram illustrating driving of a general liquid crystal display, and FIG. 2 is a diagram illustrating driving of a field sequential liquid crystal display.

Referring to FIG. 1, a general liquid crystal display device has a thin film transistor turn-on period T and a liquid crystal response period LC for one frame period 1F. The thin film transistor turn-on period T refers to a period during which the thin film transistor is turned on by the high voltage of the scan pulse and the data is charged in the liquid crystal cell, and the liquid crystal response period LC corresponds to the data charged in the liquid crystal cell. Means a period during which the liquid crystal is driven. During the thin film transistor turn-on period T, the gate lines G1 to Gn are sequentially supplied with scan pulses having a high voltage of one horizontal period 1H. The thin film transistors connected to the gate lines G1 to Gn to which the high voltage of the scan pulse is applied are simultaneously turned on, and red, green, and blue data are simultaneously supplied to the liquid crystal cells by the turned on thin film transistors. Is charged.

For example, in a liquid crystal display device having a frame period 1F of 16.67 ms, a liquid crystal response period LC of 2 ms, and a resolution of 640 × 480, the thin film transistor turn-on period T is 14.67 ms. do. Accordingly, one horizontal period 1H becomes 0.03 ms, and the thin film transistors connected to the respective gate lines G1 to Gn are turned on for 0.03 ms. That is, the period in which data is charged in each of the liquid crystal cells is 0.03 ms.

In this case, in the case of the hold type, the backlight is continuously turned on during the period in which the liquid crystal display is driven.

Referring to FIG. 2, one frame period 1F of a field sequential type liquid crystal display device includes red, green, and blue frame periods of 1 / 3F (R), 1 / 3F (G), and 1 / 3F (B). It is divided into three subframe periods. The red, green, and blue frame periods (1 / 3F (R), 1 / 3F (G), 1/3 (B)) are thin film transistor turn-on periods (T '), liquid crystal response periods (LC), and backlights, respectively. It has a lighting period BL. The thin film transistor turn-on period T ′ and the liquid crystal response period LC are as described above, and the backlight lighting period BL refers to a period during which the backlight is turned on. During the thin film transistor turn-on period T ', the gate lines G1 to Gn are sequentially supplied with scan pulses having a high voltage of one horizontal period 1H'. The thin film transistors connected to the gate lines G1 to Gn to which the high voltage of the scan pulse is applied are simultaneously turned on, and data of a color corresponding to each subframe period is supplied. That is, red data is supplied in the red frame period 1 / 3F (R), green data is supplied in the green frame period 1 / 3F (G), and in the blue frame period 1 / 3F (B). Blue data is supplied. After the data is charged, the light source of the color corresponding to each data is turned on during the backlight lighting period BL.

For example, in a liquid crystal display device having a resolution of 640 x 480, one frame period 1F is 16.67 ms, the liquid crystal response period LC is 2 ms, the backlight lighting period BL is 2 ms, and red, green and The blue frame periods (1 / 3F (R), 1 / 3F (G), 1 / 3F (B)) are respectively 5.56 ms. Therefore, the thin film transistor turn-on period T 'of each subframe is 1.56 ms, and one horizontal period 1H' is about 0.003 ms. Accordingly, the thin film transistors connected to the respective gate lines G1 to Gn are turned on for 0.003 ms to charge data in each of the liquid crystal cells.

As described above, the field sequential driving type liquid crystal display device has a shorter time for charging data to the liquid crystal cell than a general liquid crystal display device, and thus there is a problem in that the image quality is not sufficiently charged and the image quality is deteriorated.

Accordingly, an object of the present invention is to provide a liquid crystal display device which can increase the charging time of data in a field sequential driving method.

In order to achieve the above object, a liquid crystal display according to an embodiment of the present invention is m (m is a positive integer) × k (k is a positive integer of 2 or more) data lines and n (n is a positive integer) A liquid crystal display panel including three gate lines and having a resolution of m × n; A data driver for simultaneously supplying respective data to the adjacent k data lines among the data lines; A gate driver configured to simultaneously supply scan pulses to the adjacent k gate lines among the gate lines; And a backlight unit for irradiating the liquid crystal display panel with light having a color corresponding to the color of the data, wherein the liquid crystal display panel and the backlight unit are time-division driven into a plurality of subframes divided within one frame period. Red, green, and blue data are time-divisionally displayed within the one frame period.

K is three.

The liquid crystal display panel includes the m pixel columns, and the pixel column includes any one of n / 3 first pixels and one of the red, green, and blue data that display any one of the red, green, and blue data. N / 3 second pixels for displaying?, And n / 3 third pixels for displaying any one of the red, green, and blue data.

The data lines include the m data line group, and the data line group is formed along the left side of the pixel column to supply one of the red, green, and blue data to the first pixels. A second data line formed to cross a central portion of the pixel column to supply any one of the red, green, and blue data to the second pixels, and formed along the right side of the pixel column to the third pixels; And a third data line for supplying any one of the red, green, and blue data.

The backlight unit includes a red light source, a green light source, and a blue light source.

Other objects and advantages of the present invention in addition to the above object will be apparent from the description of the preferred embodiment of the present invention with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4.

3 is a diagram illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 3, a liquid crystal display according to an exemplary embodiment of the present invention includes a liquid crystal display panel 2, a data driver 4, a gate driver 6, and a backlight unit 8.

The liquid crystal display panel 2 is formed by bonding the lower substrate and the upper substrate together with the liquid crystal layer interposed therebetween.

The lower substrate of the liquid crystal display panel 2 has m (m is a positive integer) × k (k is a positive integer of 2 or more) data lines D1, D2, D3... And n (n is a positive Integer) gate lines G1, G2, G3 ... are formed. In FIG. 3, the liquid crystal display panel in which k is 3 is illustrated as an example. As described above, k may be any one of two or more positive integers.

Further, m × n pixels for sequentially displaying red data, green data, and blue data are formed on the lower substrate of the liquid crystal display panel 2. These pixels include m pixel columns 10, and the pixel columns 10 each include pixels connected to one thin film transistor (TFT). Referring to FIG. 3 where k is 3, the pixel column 10 includes n / 3 first pixels 10a having the first TFT (T11) connected to the left side, and n having the second TFT (T22) connected to the center thereof. / 3 second pixels 10b, and n / 3 third pixels 10c to which the third TFT T33 is connected on the right side.

The TFTs supply data supplied through the data lines D1, D2, D3 ... to each pixel in response to the scan pulses of the gate lines G1, G2, G3 ....

The data lines D1, D2, D3... Are formed of m data line groups. Each data line group includes k data lines. Referring to FIG. 3 in which k is 3, the data line group includes a first data line D1 and a second TFT T22 that supply data to the first pixel 10a through the first TFT T11. The second data line D2 supplies data to the two pixels 10b, and the third data line D3 supplies data to the third pixel 10c through the third TFT T33.

Data is divided into one subframe period into three subframe periods, and red data, green data, and blue data are sequentially supplied. That is, each pixel displays red data during the first subframe period in one frame period, green data during the second subframe period, and blue data during the third subframe period.

The gate lines G1, G2, G3 ... are connected by k adjacent ones, and are simultaneously supplied with scan pulses.

The liquid crystal display panel 2 is a horizontal field driving method such as IPS (In Plane Switching) mode, FFS (Fringe Field Switching) mode, and a vertical field driving method such as twisted nematic (TN) mode and vertical alignment (VA) mode. It is roughly classified into a liquid crystal display panel.

When the liquid crystal display panel 2 is a horizontal electric field driving method, a common electrode is further formed on the lower substrate, and a black matrix or the like is formed on the upper substrate. Liquid crystals between the pixel and the common electrode rotate with a dielectric anisotropy through a horizontal electric field due to a potential difference between the data supplied to the pixel and the common voltage supplied to the common electrode to adjust the light transmittance.

When the liquid crystal display panel 2 is a vertical electric field driving method, a black matrix, a common electrode, and the like are formed on the upper substrate. The liquid crystal between the pixel and the common electrode rotates with dielectric anisotropy through a vertical electric field due to a potential difference between the data supplied to the pixel and the common voltage supplied to the common electrode positioned on the upper substrate to adjust the light transmittance.

A polarizing plate having an optical axis orthogonal to each other is attached on the lower substrate and the upper substrate of the liquid crystal display panel 2, and an alignment layer for determining the pretilt angle of the liquid crystal is further formed on the inner side of the liquid crystal layer in contact with the liquid crystal layer. In addition, a storage capacitor is further formed on the thin film transistor array substrate of each liquid crystal cell. The storage capacitor is formed between the pixel to which data is supplied and the storage electrode to which the storage voltage is supplied to keep the data charged in the liquid crystal cell constant.

The data driver 4 converts the input digital video data into analog data using the gamma voltage and supplies the analog data to the data lines D1, D2, D3 .... In this case, the data driver 4 simultaneously supplies data to k adjacent data lines among the data lines D1, D2, D3... The k data lines mean one data line group described above.

The gate driver 6 sequentially supplies scan pulses to the gate lines G1, G2, G3..., And selects a horizontal line of a liquid crystal cell to which data is to be supplied. In other words, the gate driver 6 turns on the TFTs connected to the gate lines G1, G2, G3 ... by sequentially supplying scan pulses to the gate lines G1, G2, G3 .... -Turn it on or off. The turned-on TFTs allow data to be supplied to the pixels by conducting the pixels with the data lines D1, D2, D3 ... as described above. At this time, the gate driver 6 simultaneously supplies scan pulses to the adjacent k gate lines among the gate lines G1, G2, G3... That is, the gate driver 6 simultaneously selects k horizontal lines of the liquid crystal cell to which data is to be supplied.

The backlight unit 8 includes a red light source 8a, a green light source 8b, and a blue light source 8c, and each light source is sequentially turned on for each color in synchronization with the color of the data. That is, the backlight unit 8 turns on the red light source during the first subframe period in which the red data is displayed in one frame period, turns on the green light source during the second subframe period in which the green data is displayed, and displays the blue data. The blue light source is turned on during the third subframe period. A light emitting diode (LED) may be used as the light source.

4 is a diagram illustrating driving of a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 4, one frame period 1F of a liquid crystal display according to an exemplary embodiment of the present invention includes red, green, and blue frame periods (1 / 3Fp (R), 1 / 3Fp (G), and 1 / 3Fp ( The subframe period of B)) is divided into three. The subframe periods each have a thin film transistor turn-on period Tp, a liquid crystal response period LCp, and a backlight lighting period BLp. The thin film transistor turn-on period Tp means a period during which the TFT is turned on by the high voltage of the scan pulse and the data is charged in the liquid crystal cell, and the liquid crystal response period LCp is determined by the data charged in the liquid crystal cell. It means a period during which the liquid crystal is driven. In addition, the backlight lighting period BLp means a period during which the light source is turned on.

During the thin film transistor turn-on period Tp, the gate lines G1, G2, and G3... Are sequentially supplied with scan pulses having a high voltage of one horizontal period 1Hp. In this case, the gate lines G1, G2, G3... Are simultaneously supplied with scan pulses by k adjacent gate lines. That is, when k is 3 as shown in FIG. 3, three gate lines are simultaneously supplied with scan pulses as shown in FIG. 4.

The TFTs connected to the gate lines G1, G2, G3 ... to which the high voltage of the scan pulse is applied are turned on at the same time, and data of the color corresponding to each subframe period is supplied. That is, red data is supplied to the same pixel in the red frame period (1 / 3F (R)), green data is supplied in the green frame period (1 / 3F (G)), and blue frame period (1 / 3F (B). )) Is supplied with blue data.

After data of any one of red data, green data, and blue data is charged in each pixel, a light source of a color corresponding to each data is turned on during the backlight lighting period BLp.

For example, in a liquid crystal display device having a resolution of 640 × 480, one frame period 1Fp is 16.67 ms, the liquid crystal response period LCp and the backlight lighting period BLp are 2 ms, respectively. The frame periods 1 / 3Fp (R), 1 / 3Fp (G) and 1 / 3Fp (B) are respectively 5.56 ms. Therefore, the thin film transistor turn-on period Tp of each subframe is 1.56 ms. As shown in FIG. 4, when scan pulses are simultaneously supplied to three gate lines, one horizontal period 1 Hp becomes about 0.01 ms. Accordingly, the TFTs connected to the respective gate lines are turned on for 0.01 ms to charge data in each of the liquid crystal cells. In the same specification, it can be seen that the data charging time is increased by k times in the present invention compared to the data charging time of the conventional field sequential driving type liquid crystal display device is 0.003 ms.

As described above, the liquid crystal display according to the exemplary embodiment of the present invention simultaneously supplies scan pulses to k gate lines and simultaneously supplies data to k data lines in a field sequential driving method. Accordingly, the liquid crystal display according to the exemplary embodiment of the present invention has an effect of improving image quality since the high voltage period of the scan pulse, that is, one horizontal period, is increased to increase the data charging time.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (5)

a liquid crystal display panel including m (m is a positive integer) × k (k is a positive integer of 2 or more) data lines and n (n is a positive integer) gate lines, and having a resolution of m × n; A data driver for simultaneously supplying respective data to the adjacent k data lines among the data lines; A gate driver configured to simultaneously supply scan pulses to the adjacent k gate lines among the gate lines; And A backlight unit for irradiating the liquid crystal display panel with light of a color corresponding to the color of the data; Wherein the liquid crystal display panel and the backlight unit are time-division driven into a plurality of subframes divided within one frame period to time-divisionally display red, green, and blue data within the one frame period. The method of claim 1, And k is three. The method of claim 2, The liquid crystal display panel includes the m pixel columns, The pixel column includes n / 3 first pixels for displaying any one of the red, green, and blue data, n / 3 second pixels for displaying any one of the red, green, and blue data, and the red, And n / 3 third pixels displaying any one of green and blue data. The method of claim 3, wherein The data lines include the m data line groups, The data line group may be formed along a left side of the pixel column and may cross the central portion of the pixel column to supply one of the red, green, and blue data to the first pixels. A second data line configured to supply one of the red, green, and blue data to the pixels; and a second data line formed along the right side of the pixel column to supply any one of the red, green, and blue data to the third pixels. 3. A liquid crystal display comprising three data lines. The method of claim 1, The backlight unit includes a red light source, a green light source and a blue light source.
KR1020070053894A 2007-06-01 2007-06-01 Liquid crystal display device KR20080105827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070053894A KR20080105827A (en) 2007-06-01 2007-06-01 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070053894A KR20080105827A (en) 2007-06-01 2007-06-01 Liquid crystal display device

Publications (1)

Publication Number Publication Date
KR20080105827A true KR20080105827A (en) 2008-12-04

Family

ID=40367048

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070053894A KR20080105827A (en) 2007-06-01 2007-06-01 Liquid crystal display device

Country Status (1)

Country Link
KR (1) KR20080105827A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9472154B2 (en) 2013-07-05 2016-10-18 Samsung Display Co., Ltd. Display panel and display apparatus having the same
CN111462705A (en) * 2020-04-14 2020-07-28 Tcl华星光电技术有限公司 Display panel driving method and display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9472154B2 (en) 2013-07-05 2016-10-18 Samsung Display Co., Ltd. Display panel and display apparatus having the same
CN111462705A (en) * 2020-04-14 2020-07-28 Tcl华星光电技术有限公司 Display panel driving method and display device

Similar Documents

Publication Publication Date Title
US7764262B2 (en) Liquid crystal display device and method of driving the same
US10109241B2 (en) Light valve panel and liquid crystal display using the same
EP2487528A1 (en) Liquid crystal display device and driving method thereof
KR101488197B1 (en) Liquid crystal display device and method of driving the same
JP2009063751A (en) Liquid crystal display device
US20110032343A1 (en) Liquid crystal shutter device and picture display system
US10890811B2 (en) Liquid crystal display device
US20160307527A1 (en) Liquid crystal display device and method of driving the same
US20060279507A1 (en) Liquid crystal display device
US20130120467A1 (en) Color sequential liquid crystal display device
KR20040053785A (en) Liquid crystal display device
JP3504480B2 (en) Liquid crystal display
KR101840875B1 (en) Liquid crystal display device and method for driving the same
KR20040017717A (en) field sequential liquid crystal device
KR20110137606A (en) Liquid crystal display and driving method thereof
KR20080105827A (en) Liquid crystal display device
KR20070024893A (en) Liquid crystal display device and method for driving the same
KR100389026B1 (en) Apparatus and method for driving backlight of liquid crystal display device
WO2012043408A1 (en) Liquid crystal display device, drive method, and display apparatus
US20090207114A1 (en) Liquid crystal display device
KR20110107585A (en) Apparatus and method for liquid crystal display device
JP2004206003A (en) Driving method for field sequential liquid crystal display device
KR100518272B1 (en) Liquid crystal display and driving method thereof
KR20090008061A (en) Liquid crystal display device
KR20110072290A (en) Liquid crystal display

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination