KR101894336B1 - Liquid crystal display panel and liquid crystal display having the same - Google Patents

Liquid crystal display panel and liquid crystal display having the same Download PDF

Info

Publication number
KR101894336B1
KR101894336B1 KR1020150186566A KR20150186566A KR101894336B1 KR 101894336 B1 KR101894336 B1 KR 101894336B1 KR 1020150186566 A KR1020150186566 A KR 1020150186566A KR 20150186566 A KR20150186566 A KR 20150186566A KR 101894336 B1 KR101894336 B1 KR 101894336B1
Authority
KR
South Korea
Prior art keywords
pixel
liquid crystal
viewing angle
pixel electrode
slit
Prior art date
Application number
KR1020150186566A
Other languages
Korean (ko)
Other versions
KR20170076384A (en
Inventor
정준호
진현석
정규도
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 KR1020150186566A priority Critical patent/KR101894336B1/en
Publication of KR20170076384A publication Critical patent/KR20170076384A/en
Application granted granted Critical
Publication of KR101894336B1 publication Critical patent/KR101894336B1/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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • 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
    • G02F2001/134372—

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Geometry (AREA)

Abstract

A red, green, and blue sub-pixels of a liquid crystal display panel according to the present invention include a first sub-pixel, a second sub-pixel, and a second sub-pixel, And the white sub-pixel includes a second pixel electrode having a second slit that is wider than the first slit.

Description

TECHNICAL FIELD [0001] The present invention relates to a liquid crystal display panel and a liquid crystal display device having the liquid crystal display panel.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel and a liquid crystal display device having the liquid crystal display panel, and more particularly, to a liquid crystal display panel and a liquid crystal display device having the liquid crystal display panel capable of minimizing lightness and thickness reduction and decreasing transmittance.

As a display device for realizing various information on a screen, a liquid crystal display (LCD), an organic light emitting diode (OLED) display device, and the like are representative. Such a display device is used for various purposes such as a TV, a monitor, a PC, a mobile phone, a digital camera, and a PDA.

This display device is required to have a wide viewing angle so that a large number of people can share it and a narrow viewing angle so that only a person can use the wide viewing angle. For example, a coarse angle of view is required when an image is to be displayed only to a user, such as an Internet banking, an ATM, or to people located within a limited viewing angle.

In order to selectively implement such a wide viewing angle and a narrow viewing angle, a method of attaching a separate viewing angle control panel to the front or rear surface of a liquid crystal panel implementing an image has been proposed. However, due to the viewing angle control panel, the thickness of the entire liquid crystal display module becomes thick, so that it is not only lightweight and thin, but also has a problem of lowering the transmittance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a liquid crystal display panel which is lightweight and easy to be thinned and minimizes a decrease in transmittance, and a liquid crystal display device having the same.

In order to achieve the above object, the red, green, and blue sub-pixels of the liquid crystal display panel according to the present invention include a first pixel electrode having a first slit, and the white sub-pixel includes a second slit And a second pixel electrode.

In the present invention, the main sub-pixel which is the red, green and blue sub-pixels and the control sub-pixel which is the white sub-pixel (SPW) are driven by the fringe field. Accordingly, the present invention can minimize the decrease in transmittance by the white sub-pixels driven in the same manner as the red, green and blue sub-pixels in the wide viewing angle mode. In addition, since the side viewing angle is reduced by the white sub-pixel in the narrow viewing angle mode, the image can be seen in a narrow viewing angle range. In addition, since the present invention can realize a wide viewing angle and a narrow viewing angle with one liquid crystal display panel having a control sub-pixel without a separate viewing angle control panel, it is possible to achieve a light weight thinning.

1 is a plan view showing a liquid crystal display panel according to the present invention.
2 is a cross-sectional view showing the liquid crystal display panel shown in Fig.
3A and 3B are cross-sectional views illustrating a liquid crystal display panel according to the present invention implemented in a wide viewing angle mode.
4A and 4B are cross-sectional views illustrating a liquid crystal display panel according to the present invention implemented in a narrow viewing angle mode.
FIGS. 5A and 5B are simulation results showing brightness of a black state of a liquid crystal display panel according to an embodiment of the present invention.
6 is a view for explaining the front contrast effect according to the ratio of the width of the second slit to the line width of the second pixel electrode of the present invention.
7 is a block diagram showing a liquid crystal display device including a liquid crystal display panel according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing a unit pixel of a liquid crystal display panel according to the present invention.

1, each unit pixel of the liquid crystal display panel according to the present invention includes a main sub-pixel including red, green, and blue sub-pixels SPR, SPG, and SPB, a control sub- Pixel.

The red, green, blue and white subpixels SPR, SPG, SPB and SPW are implemented in a fringe field switching (FFS) mode in the wide viewing angle mode and the narrow viewing angle mode. The white sub-pixel (SPW), which is a control sub-pixel, contributes to the transmittance in the wide viewing angle mode and decreases the side viewing angle in the narrow viewing angle mode, thereby displaying an image in a narrow viewing angle range.

These red, green, blue and white subpixels (SPR, SPG, SPB, SPW) are arranged in a quad type 2 × 2 structure or in a stripe type.

2, a liquid crystal display panel having a plurality of unit pixels PXL formed of red, green, blue and white sub-pixels SPR, SPG, SPB and SPW is formed on the first and second liquid crystal layers < Film transistor substrate 140 and a color filter substrate 130 facing each other with a gap (not shown) therebetween.

The color filter substrate 130 includes a black matrix (not shown) for preventing light leakage, a color filter 132 for color implementation, and an overcoat layer 134 for planarization as shown in FIG.

The black matrix is formed on the upper substrate 111 so as to overlap with at least one of the gate line GL, the data line DL and the thin film transistor. The black matrix serves to separate each sub pixel region and to prevent optical interference between adjacent sub pixel regions.

The red (R), green (G), and blue (B) color filters 132 are formed on the upper substrate 111 of the corresponding sub pixel region except for the white sub pixel region SPW to implement the corresponding color.

The overcoat layer 134 is formed of a transparent organic insulating material such as acrylic resin on the color filter 132 and the black matrix. The overcoat layer 134 compensates the step of the color filter 132 and the black matrix. In addition, the overcoat layer 134 serves as a white color filter in a white sub-pixel (SPW) region where no white color filter is formed.

The thin film transistor substrate 140 includes a thin film transistor located at the intersection of the gate line GL and the data line DL and the pixel electrodes 122 and 126 connected to the thin film transistor and the pixel electrodes 122 and 126, And a common electrode 124.

The thin film transistor supplies a data signal from the data line DL to the pixel electrodes 122 and 126 in response to a gate signal from the gate line GL. The thin film transistor includes a gate electrode connected to the gate line GL formed on the lower substrate 101 and a source electrode connected to the data line DL crossing the gate line GL and the gate insulating film, A source electrode 108, a drain electrode 110 connected to the pixel electrode 122, and a semiconductor layer forming a channel between the source and drain electrodes 108 and 110.

The pixel electrodes 122 and 126 are connected to the drain electrode 110 exposed through the pixel contact hole 120 and are formed of a transparent conductive material. The pixel electrodes 122 and 126 overlap the common electrode 124 with the second protective film 118 interposed therebetween in each pixel region to form a fringe field. The pixel electrodes 122 and 126 have different shapes in the main sub-pixel and the control sub-pixel. The first pixel electrode 122, which is the first transparent electrode positioned in the main sub-pixel which is the red, green and blue sub-pixels SPR, SPG and SPB, is spaced apart by the first slit 136, The second pixel electrode 126, which is the second transparent electrode positioned in the control sub-pixel SPW, is spaced apart with the second slit 138 therebetween. Here, the width d2 of the second slit 138 is greater than the width d1 of the first slit 136 (d2> d1), and the line width w1 of the first pixel electrode 122 is larger than the width d1 (W1 > w2). The width d2 of the second slit 138 with respect to the line width w2 of the second pixel electrode 126 is maintained at 1.5 to 2.7 ratio d2 / w2. For example, when the line width of the second pixel electrode 126 is 2.0 mu m to 3.5 mu m, the width of the second slit 138 is 3.0 mu m to 9.5 mu m.

The common electrode 124 is formed on the first protective film 112 formed to cover the thin film transistor, and a common voltage is supplied. Thus, the common electrode 124, to which the common voltage is supplied, forms a fringe electric field with each of the first and second pixel electrodes 122 and 126 to which a video signal is supplied through the thin film transistor, The liquid crystal molecules arranged in the direction are rotated by the dielectric anisotropy. The transmittance of light passing through the pixel region is changed according to the degree of rotation of the liquid crystal molecules, thereby realizing the gradation.

3A and 3B are views showing a liquid crystal array in a black and white state when a wide viewing angle mode is implemented.

3A and 3B, the red, green, blue and white sub-pixels SPR, SPG, SPB and SPW are driven in a black or white state according to the presence or absence of an electric field when the liquid crystal display panel is driven in the wide viewing angle mode .

A fringing electric field is formed between each of the first and second pixel electrodes 122 and 126 and the common electrode 124 of the red, green, blue and white sub-pixels SPR, SPG, SPB and SPW, The first and second liquid crystal layers 152 and 154 of the red, green, blue and white sub-pixels SPR, SPG, SPB and SPW maintain the initial horizontal alignment state. Accordingly, the red, green, blue, and white sub-pixels SPR, SPG, SPB, and SPW do not pass through the upper polarizer because the light having passed through the first and second liquid crystal layers 152 and 154 can not pass through the upper polarizer. do.

3B, a fringing electric field is formed between each of the first and second pixel electrodes 122 and 126 of the red, green, blue and white subpixels SPR, SPG, SPB and SPW and the common electrode 124, The first and second liquid crystal layers 152 and 154 are twisted by the fringe electric field. Accordingly, the red, green, blue, and white sub-pixels SPR, SPG, SPB, and SPW emit white light because the light having passed through the liquid crystal layers 152 and 154 passes through the upper polarizer. On the other hand, in the white implementation, the fringing electric field between the second pixel electrode 126 and the common electrode 124 of the white subpixel SPW is the sum of the first pixel of each of the red, green and blue subpixels SPR, SPG and SPB And the fringing electric field between the electrodes 122 and 126 and the common electrode 124 is maintained. Accordingly, the twist angles of the liquid crystal layers of the red, green, blue and white subpixels SPR, SPG, SPB and SPW become the same, and the red, green, blue and white subpixels SPR, SPG, The same transmittance can be obtained.

Thus, in the wide viewing angle mode, the white sub-pixel SPW is implemented in the fringe field mode as in the red, green and blue sub-pixels SPR, SPG and SPB and contributes to the transmittance, It is possible to minimize the decrease in transmittance in the viewing angle mode.

FIGS. 4A and 4B are views showing liquid crystal arrays in white and black states when a narrow viewing angle mode is implemented. FIG.

4A and 4B, the red, green, and blue sub-pixels SPR, SPG, and SPB are implemented in a black or white state according to the presence or absence of an electric field when the liquid crystal display panel is driven in the narrow viewing angle mode, The sub-pixel SPW is implemented in a white state in a side viewing angle direction and in a black state in a front viewing angle direction. This will be described in detail as follows.

When a fringing electric field is formed between the first pixel electrode 122 and the common electrode 124 of each of the red, green and blue subpixels SPR, SPG and SPB as shown in FIG. 4A, The green and blue sub-pixels (SPR, SPG, SPB) implement a white state.

On the other hand, a fringe electric field including a vertical component is formed between the second pixel electrode 126 and the common electrode 124 of the white sub-pixel SPW in the narrow viewing angle mode. At this time, the fringing electric field between the second pixel electrode 126 and the common electrode 124 of the white sub-pixel SPW is applied to the first pixel electrode 122 of each of the red, green and blue sub-pixels SPR, SPG and SPB ) And the common electrode (124). To this end, a high data voltage is supplied to the second pixel electrode 126 rather than the first pixel electrode 122. Accordingly, a fringe electric field including a stronger vertical component than the red, green, and blue sub-pixels SPR, SPG, SPB is formed between the second pixel electrode 126 and the common electrode 124 of the white sub- . Particularly, since the width d2 of the second slit 138 of the white sub-pixel SPW (that is, the interval between the second pixel electrodes 126) is wider than the width of the first slit w1, ), A fringe field having a stronger vertical component than the other sub-pixels (SPR, SPG, SPB) is formed. In this case, since the center portion of the common electrode 124 exposed between the second slits 138 is affected by the fringing electric field of the vertical component, the second liquid crystal layers 154 at the center portion thereof are connected to the lower substrate 101 And are arranged in an oblique line state. Accordingly, no twist occurs in the second liquid crystal layer 154 of the white sub-pixel SPW, and only the tilt angle is changed. That is, since the long axis of the second liquid crystal layer 154 of the white subpixel SPW is inclined at a predetermined angle from the lower substrate 101, the second liquid crystal layer 154 of the white subpixel SPW is inclined in the oblique direction A difference in phase value is generated. Specifically, the light traveling in the direction of the viewing angle of 0 degrees after passing through the lower polarizer plate does not retard the phase even though it passes through the second liquid crystal layer 154, so the polarized state incident on the lower polarizer plate is maintained. I can not pass. On the other hand, the light advancing in an oblique direction after passing through the lower polarizer passes through the second liquid crystal layer 154 and is retarded in phase to generate light parallel to the polarization axis of the upper polarizer. Therefore, in the case of the white sub-pixel SPW, no light is observed in the front viewing angle direction, but a light leakage phenomenon occurs in the side viewing angle direction.

If a fringing field is not formed between the first pixel electrode 122 and the common electrode 124 of each of the red, green and blue subpixels SPR, SPG and SPB as shown in FIG. 4B, Similarly, the red, green, and blue sub-pixels (SPR, SPG, SPB) implement a black state.

On the other hand, a fringe electric field including a vertical component is formed between the second pixel electrode 126 and the common electrode 124 of the white sub-pixel SPW. As described above, in the white sub-pixel SPW, no light is observed in the front viewing angle direction, but a light leakage phenomenon occurs in the side viewing angle direction.

As described above, in the narrow viewing angle mode, a light leakage phenomenon occurs on the side of the white sub-pixel SPW, thereby affecting the image to be viewed on the side excluding the front surface of the liquid crystal display panel. Therefore, the liquid crystal display panel according to the present invention can realize a narrow viewing angle mode so that an image is viewed in a narrow angular range with respect to the front face of the liquid crystal display panel.

FIGS. 5A and 5B are simulation results showing brightness of a black state of a liquid crystal display panel according to an embodiment of the present invention.

In the case of the comparative example in which the widths of the slits of the red, green, blue and white sub-pixels SPR, SPG, SPB and SPW are the same, lateral light leakage occurs from a lateral viewing angle inclined at 18.9 degrees from the front as shown in FIG. On the other hand, in the case of the embodiment of the present invention in which the first slit 136 of the red, green and blue subpixels SPR, SPG and SPB and the second slit 138 of the white subpixel SPW have different widths, As shown in FIG. 5B, lateral light leakage is generated from a lateral viewing angle inclined to 9.8 degrees from the front. As described above, the present invention can implement an image in a narrow viewing angle mode in which an image is viewed in a narrower angular range than in the comparative example.

6 is a view for explaining the front contrast ratio according to the width ratio of the second slit to the line width of the second pixel electrode of the present invention.

6, when the line width w2 of the second pixel electrode 126 of the white subpixel SPW is 2 탆 and 3.5 탆, respectively, the line width w2 of the second pixel electrode 126 In the embodiment in which the ratio (d2 / w2) of the width d2 of the two slits 138 is 1.5 to 2.7, a region with a sharp contrast is broadly distributed in the frontal view, in the vertical and horizontal directions, and in the viewing angle direction. On the other hand, in the case of the comparative example in which the width ratio of the second slit 138 to the line width of the second pixel electrode 126 exceeds 2.7, the region having a sharp contrast is hardly seen in the front direction with the viewing angle of 0 degrees. As described above, since the light leakage does not leak at the front viewing angle but occurs only at the side viewing angle, the present invention can realize a narrow viewing angle without loss of the front contrast ratio.

FIG. 7 is a block diagram showing a liquid crystal display including the liquid crystal display panel shown in FIG. 2. FIG.

7, the liquid crystal display according to the present invention includes a liquid crystal display panel 172 having a plurality of unit pixels P, a data driver 174 for driving the display panel 172, a gate driver And a panel controller 170 including a timing controller 178 and a panel driver 176.

The timing controller 178 generates a plurality of control signals GCS and DCS for controlling the driving timings of the gate driver 176 and the data driver 174 and arranges the pixel data and supplies them to the data driver 104 .

The gate driver 176 sequentially drives the gate line GL of the display panel 172 in response to the gate control signal GCS from the timing controller 178. The gate driver 176 supplies a scan pulse of a gate-on voltage for each scan period of each gate line GL and supplies a gate-off voltage for the remaining period in which the other gate line GL is driven.

The data driver 174 converts the digital data from the timing controller 175 into an analog data voltage in response to the data control signal DCS from the timing controller 178, Line DL. The data driver 174 applies a data voltage higher than the data voltage supplied to the red, green and blue sub-pixels SPR, SPG and SPB to the white sub-pixel SPW when the liquid crystal display panel 172 is implemented in the narrow viewing angle mode Supply. In this case, in the narrow viewing angle mode, between the second pixel electrode 126 and the common electrode 124 of the white subpixel SPW, the first pixel electrode 122 of the red, green, and blue subpixels SPR, SPG, And the common electrode 124 are formed in the fringe field having a stronger vertical electric field. Accordingly, in the white sub-pixel SPW, a light leakage phenomenon occurs in the side viewing angle direction, so that an image can be realized in a narrow viewing angle mode in which an image is viewed in a narrow angle range.

The liquid crystal display panel of the present invention has a structure in which the pixel electrodes 122 and 126 having a plurality of slits are located at an upper portion than the common electrode 124. In addition to the pixel electrodes 122 and 126, It is also applicable to a structure in which the electrode 124 is located at an upper portion.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

122, 126: pixel electrode 124: common electrode
130: Color filter substrate 136, 138: Slit
140: thin film transistor substrate 152, 154: liquid crystal layer

Claims (7)

1. A liquid crystal display panel having a plurality of unit pixels and selectively driven in a wide viewing angle mode and a narrow viewing angle mode,
Each unit pixel
Red, green, and blue sub-pixels each having a first pixel electrode having a plurality of first slits;
And a second pixel electrode having a second slit different in width from the first slit,
Wherein the first and second slits are arranged in a parallel direction,
In the narrow viewing angle mode, a data voltage higher than the first pixel electrode is supplied to the second pixel electrode of the white sub-pixel through the thin film transistor,
The line width of the second pixel electrode spaced apart by the second slit is smaller than the line width of the first pixel electrode spaced apart by the first slit,
In the wide viewing angle mode, the white sub-pixel is implemented as a fringing field, contributing to transmittance,
Wherein a ratio of a width of the second slit to a line width of the second pixel electrode is 1.5 to 2.7 times. The method according to claim 1,
Wherein the width of the second slit is larger than the width of the first slit. The method according to claim 1,
Wherein each of the red, green, blue, and white sub-pixels further comprises a common electrode that forms the fringe electric field with each of the first pixel electrode and the second pixel electrode. The method of claim 3,
And the line width of the second pixel electrode of the white sub-pixel is narrower than the width of the second slit. delete A liquid crystal display panel according to any one of claims 1 to 4;
And a data driver connected to the data lines of the red, green, blue, and white sub-pixels, respectively. The method according to claim 6,
The data driver
And supplies the data voltage to the white sub-pixel higher than each of the red, green and blue sub-pixels in the narrow viewing angle mode.
KR1020150186566A 2015-12-24 2015-12-24 Liquid crystal display panel and liquid crystal display having the same KR101894336B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150186566A KR101894336B1 (en) 2015-12-24 2015-12-24 Liquid crystal display panel and liquid crystal display having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150186566A KR101894336B1 (en) 2015-12-24 2015-12-24 Liquid crystal display panel and liquid crystal display having the same

Publications (2)

Publication Number Publication Date
KR20170076384A KR20170076384A (en) 2017-07-04
KR101894336B1 true KR101894336B1 (en) 2018-09-03

Family

ID=59357059

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150186566A KR101894336B1 (en) 2015-12-24 2015-12-24 Liquid crystal display panel and liquid crystal display having the same

Country Status (1)

Country Link
KR (1) KR101894336B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170506A (en) 2007-01-09 2008-07-24 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
JP2008191645A (en) 2007-01-09 2008-08-21 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
JP2009229800A (en) * 2008-03-24 2009-10-08 Epson Imaging Devices Corp Liquid crystal display device and electronic equipment
JP2009229891A (en) * 2008-03-24 2009-10-08 Epson Imaging Devices Corp Liquid crystal device and electronic equipment
JP2015152695A (en) * 2014-02-13 2015-08-24 三菱電機株式会社 liquid crystal display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170506A (en) 2007-01-09 2008-07-24 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
JP2008191645A (en) 2007-01-09 2008-08-21 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
JP2009229800A (en) * 2008-03-24 2009-10-08 Epson Imaging Devices Corp Liquid crystal display device and electronic equipment
JP2009229891A (en) * 2008-03-24 2009-10-08 Epson Imaging Devices Corp Liquid crystal device and electronic equipment
JP2015152695A (en) * 2014-02-13 2015-08-24 三菱電機株式会社 liquid crystal display device

Also Published As

Publication number Publication date
KR20170076384A (en) 2017-07-04

Similar Documents

Publication Publication Date Title
TWI484272B (en) Pixel structure of transparent liquid crystal display panel
KR101222955B1 (en) Liquid Crystal Display Device And Method For Fabricating The Same
KR100546258B1 (en) Liquid crystal display panel of horizontal electronic field applying type
TWI420443B (en) Display apparatus and driving method
US8493523B2 (en) Liquid crystal display with two sub-pixel regions and a storage capacitor
US20140267962A1 (en) Liquid crystal display
KR101046929B1 (en) Liquid crystal display
US9978321B2 (en) Display device and method of driving the same
US10013929B2 (en) Thin film transistor array substrate and display panel
US20190146271A1 (en) Transparent liquid crystal display
KR101157975B1 (en) Method For Driving Liquid Crystal Display Device
US10088716B2 (en) Liquid crystal display device
KR20130127496A (en) 3d display method and 3d display device
US10417978B2 (en) Liquid-crystal display device
US9417487B2 (en) Liquid crystal display having improved transmittance and luminance characteristics
KR100851743B1 (en) Controllable viewing angle patterned vertical alignment liquid crystal display
US8432501B2 (en) Liquid crystal display with improved side visibility
US20160139462A1 (en) Curved liquid crystal display
US10768486B2 (en) Display device
KR20160128550A (en) Liquid crystal display device
KR20040084454A (en) thin film diode panel for liquid crystal display and liquid crystal display including the panel
KR101894336B1 (en) Liquid crystal display panel and liquid crystal display having the same
US20170003554A1 (en) Liquid crystal display
JP4501979B2 (en) Liquid crystal display
TWI591408B (en) Pixel structure of transparent liquid crystal display panel

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)
GRNT Written decision to grant