CN100501544C - Thin film transistor panel and liquid crystal display using the same - Google Patents

Thin film transistor panel and liquid crystal display using the same Download PDF

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Publication number
CN100501544C
CN100501544C CNB2005101275515A CN200510127551A CN100501544C CN 100501544 C CN100501544 C CN 100501544C CN B2005101275515 A CNB2005101275515 A CN B2005101275515A CN 200510127551 A CN200510127551 A CN 200510127551A CN 100501544 C CN100501544 C CN 100501544C
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China
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liquid crystal
grid
low resolution
pixel
crystal indicator
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CN1790139A (en
Inventor
鱼基汉
金炯杰
金尚佑
李承珪
安宝煐
朴源祥
金宰贤
尹海荣
李宰瑛
埃尔纳·博达勒娃
车圣恩
张映珠
林载翊
郑基勋
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Samsung Display Co Ltd
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Samsung Electronics Co Ltd
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    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G02F1/133555—Transflectors
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.

Description

The LCD of thin-film transistor display panel and this thin-film transistor display panel of use
Technical field
The present invention relates to a kind of LCD (LCD) and be used for thin film transistor (TFT) (TFT) panel of this LCD.
Background technology
Usually, LCD is included in a counter plate that has electrode on its inside surface respectively and the liquid crystal layer that places the dielectric anisotropy between the described panel.In LCD, the variation of the voltage difference between generating electrodes, that is, the variation of the electric field intensity that is produced by electrode changes the transmitance of the light that passes liquid crystal layer, thereby obtains desired images by the voltage difference between control electrode.
In LCD, light can be natural light or the artificial light of the light emitted that adopts from LCD.
Backlight is the representative device that is used for providing at LCD artificial light, and for example, backlight utilizes light emitting diode (LED) or fluorescent light, is used as light source as cold-cathode fluorescence lamp (CCFL) and external-electrode fluorescent lamp (EEFL).
The power consumption of backlight is represented the major part of LCD total power consumption.Therefore, in order to reduce the power consumption of LCD, the focus of expectation concentrates on effect rate that improves backlight or the service time of reducing backlight.
The battery that is used as power supply in mobile technology such as portable phone has limited power supply capacity.For this reason, made great efforts to attempt increasing the maximum service time of mobile technology by the power consumption that is reduced in the LCD that adopts in the mobile technology.
Summary of the invention
Embodiments of the invention provide a kind of LCD of low-power consumption, and how always the mode of operation that this LCD has a backlight that uses among the LCD no matter the viewing area of display image.
According to embodiments of the invention, liquid crystal display (LCD) device comprises low resolution zone and high-resolution areas, and wherein, the pixel that forms in the low resolution zone is greater than the pixel that forms in high-resolution areas.
The LCD device can comprise: the transmission LCD panel assembly; Backlight assembly is used for providing light to the LCD panel assembly; Selective reflection film is arranged between backlight assembly and the LCD panel assembly.
Preferably, the transmission LCD panel assembly comprises: thin film transistor (TFT) (TFT) panel; Color filter panel, it is relative with the TFT panel and have predetermined interval betwixt; Liquid crystal layer places between TFT panel and the color filter panel; First polarizer and second polarizer are separately positioned on the outside surface of TFT panel and color filter panel.
The LCD device can also comprise: data driving chip is installed on the TFT panel; The first grid chip for driving is installed on the TFT panel to drive the low resolution zone; The second grid chip for driving is installed on the TFT panel to drive high-resolution areas.
Alternatively, the LCD device can also comprise: data driving chip is installed on the TFT panel; The first grid driving circuit is formed on the TFT panel to drive the low resolution zone; The second grid driving circuit is formed on the TFT panel to drive high-resolution areas.
Preferably, the TFT panel comprises: many first grid polar curves are formed on the low resolution zone; Many second grid lines are formed on high-resolution areas; Many first data lines intersect with first grid polar curve and second grid line, these many first data lines and first grid polar curve and the insulation of second grid line; Many second data lines intersect with the second grid line and insulate, and do not intersect with first grid polar curve.
First data line and second data line be arranged alternate one by one, and about twice that the interval between two adjacent first grid polar curves can be two intervals between the adjacent second grid line is big.
LCD can also comprise the Transflective LCD panel assembly and be used for the LCD panel assembly is provided the backlight assembly of light.
The Transflective LCD panel assembly can comprise: the TFT panel, and it comprises the reflecting electrode that is formed on the transparency electrode and has transmission window; Color filter panel, relative with the TFT panel, and have predetermined interval betwixt; Liquid crystal layer places between TFT panel and the color filter panel; With first polarizer and second polarizer, be separately positioned on the outside surface of TFT panel and color filter panel.
The TFT panel can comprise: many first grid polar curves are formed on the low resolution zone; Many second grid lines are formed on high-resolution areas; Many first data lines intersect with first grid polar curve and second grid line and insulate; With many second grid lines, intersect with the second grid line and insulate, do not intersect with first grid polar curve.
According to another embodiment of the present invention, a kind of liquid crystal display (LCD) device is provided, this device comprises: low resolution zone and high-resolution areas, wherein, be formed on pixel in the low resolution zone greater than the pixel that is formed in the high-resolution areas, and only show a kind of color to small part low resolution zone.
Preferably, the pixel that forms in the low resolution zone is the about three times big of pixel that forms in high-resolution areas.
Preferably, the matrix of the pixel that forms in the low resolution zone is corresponding with the matrix of the pixel groups that forms in high-resolution areas, and each pixel groups that comprises redness, green and blue pixel is expressed as a little in high-resolution areas.
Preferably, be used for providing the data line of picture signal to extend up to the low resolution zone, thereby all pixels that form in the low resolution zone can receive picture signal to the green pixel of high-resolution areas.
But low resolution zone display white and black, the low resolution zone comprises a plurality of monochromatic areas, each monochromatic areas only shows a kind of color.Each monochromatic areas shows the color different with other zone.In addition, at least one in monochromatic areas can be made up of the pixel that each pixel has two kinds of color filters.
According to another embodiment of the present invention, a kind of liquid crystal display (LCD) device is provided, this device comprises low resolution zone and high-resolution areas, wherein, the low resolution zone comprises many first grid polar curves and many first data lines, and high-resolution areas comprises many second grid lines and many second data lines; Wherein, the pixel that forms in the low resolution zone is greater than the pixel that forms in high-resolution areas; Wherein, every of first data line is extended on the length direction in low resolution zone.
Preferably, second data line extends and is vertical with first data line.
This LCD device can also comprise the first grid driving circuit, and sidepiece and the length direction in the low resolution zone that this first grid driving circuit is arranged on the low resolution zone extend, and the first grid driving circuit provides sweep signal to first grid polar curve.
The LCD device can also comprise the second grid driving circuit, and the second grid driving circuit is arranged on the sidepiece of high-resolution areas and extends on the direction identical with second data line, and the second grid driving circuit provides sweep signal to the second grid line.
In addition, the LCD device can comprise: data drive circuit is used for providing picture signal to first data line and second data line; And lead, be used for data drive circuit is connected to first data line.
According to another embodiment of the present invention, provide a kind of liquid crystal display (LCD) device, this device comprises: the display part, and it is divided into a plurality of viewing areas; A plurality of the Lights sections, each comprises the light source that is used for corresponding display region is provided light; Light source controller, the control signal that response applies from external device (ED) are controlled the supply of the voltage of the Lights section operation with control the Lights section.
Preferably, the display part is divided into a plurality of viewing areas based on resolution.
The display part comprises the main display part of high-resolution and the inferior display part of low resolution.
A plurality of the Lights sections can comprise the main light source part and the secondary light source part that is used for inferior display part is provided light that is used for main display part is provided light.Preferably, the light source that partly comprises of main light source is more than the light source of secondary light source part.
The light source of main light source part can contact or be arranged in parallel.In addition, the light source of main light source part and secondary light source part is a light emitting diode.
The LCD device can also comprise a plurality of power units, is used to export the necessary voltage of operation of each the Lights section, and wherein, light source controller output can drive the control signal of a plurality of power units.
A plurality of the Lights sections can be arranged on the top and the bottom of display part individually.
Alternatively, a plurality of the Lights sections can be arranged on the left side, ground, display part or the right individually.
Description of drawings
The description below in conjunction with the accompanying drawings, can understand the preferred embodiments of the present invention in more detail, wherein:
Fig. 1 is the decomposition diagram of schematically illustrated LCD according to the embodiment of the invention.
Fig. 2 A is the layout according to the LCD of the embodiment of the invention.
Fig. 2 B is the view of the pixel of arranging among the LCD that is illustrated among Fig. 2 A.
Fig. 3 shows two views that are used for the pixel cell that forms in pixel cell that comparison forms in the low resolution zone of the LC shown in Fig. 2 B and the high-resolution areas.
Fig. 4 is at the layout according to the pixel cell in the LC panel of the LCD of the embodiment of the invention.
Fig. 5 is the cut-open view along the V-V ' of the line among Fig. 4 intercepting.
Fig. 6 is the layout according to the driving circuit of the LCD of the embodiment of the invention.
Fig. 7 is the layout of the driving circuit of LCD according to another embodiment of the present invention.
Fig. 8 is the layout of the pixel cell that forms in the LC panel of according to another embodiment of the present invention LCD.
Fig. 9 is the cut-open view along the IX-IX ' of the line among Fig. 8 intercepting.
Figure 10 A is the layout of LC panel according to another embodiment of the present invention.
Figure 10 B is the view of the amplification of the part A among Figure 10 A.
Figure 11 A is the layout of LC panel according to another embodiment of the present invention.
Figure 11 B is the view of the amplification of the part A among Figure 11 A.
Figure 12 A is the layout of LC panel according to another embodiment of the present invention.
Figure 12 B is the view of the amplification of the part A among Figure 12 A.
Figure 13 is the layout of the driving circuit of LCD according to another embodiment of the present invention.
Figure 14 is the block diagram of LCD according to another embodiment of the present invention.
Figure 15 is the equivalent circuit diagram of the pixel cell of LCD according to another embodiment of the present invention.
Figure 16 is the block diagram according to the power unit of the embodiment of the invention.
Figure 17 A and Figure 17 B are the views that is used for relatively being separately positioned on according to the layout of two main light sources of two LCD of the embodiment of the invention.
Figure 18 is the decomposition diagram of schematically illustrated LCD according to another embodiment of the present invention.
Figure 19 A and Figure 19 B are used for relatively being separately positioned on the view of the layout of two main light sources of two LCD according to another embodiment of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing the preferred embodiments of the present invention are described more fully.Yet the present invention can implement with different form, and should not be interpreted as the embodiment that is restricted in this proposition.
Fig. 1 is the decomposition diagram that schematically shows according to the LCD of the embodiment of the invention.
With reference to Fig. 1, comprise according to the LCD of the embodiment of the invention: LC panel assembly 330 is used to utilize light to come display image; Backlight assembly 340 is used to produce light; Selective reflection film 347 is arranged between LC panel assembly 330 and the backlight assembly 340; Molded frame 364 is used for holding therein LC panel assembly 330, selective reflection film 347 and backlight assembly 340; Upper bracket 361 and lower carriage 362 surround and support said elements.
LC panel assembly 330 comprises LC panel 300, chip for driving 510 and the ductility circuit board 550 that is used for display image.
LC panel 300 comprises opposed facing thin film transistor (TFT) (TFT) panel 100 and color filter panel 200 and the LC layer (not shown) between them.
The TFT panel is provided with basically a plurality of pixel (not shown)s with arranged.Pixel is intersected with many data lines by many gate line (not shown)s and is limited, and described many gate lines extend on line direction and are parallel to each other simultaneously, and described many data lines extend on column direction and are parallel to each other simultaneously.Each pixel is provided with pixel electrode and the TFT (not shown) that is connected with gate line, data line and pixel electrode.
Color filter panel 200 is provided with a plurality of redness, green and blueness (RGB) the wave filter (not shown) that can utilize white light to show desired color, and this panel 200 is made by thin-film technique.Color filter panel 200 also comprises the public electrode relative with the pixel electrode of TFT panel 100.
The voltage that is applied to pixel electrode and public electrode makes the LC molecular orientation in the LC layer, and the polarisation of light that provides from backlight assembly 340 changes according to the orientation of LC molecule.
Chip for driving 510 is installed on first edge of TFT panel 100, to provide drive signal to data line and gate line.Chip for driving 510 can comprise be respectively applied for gate line and data line more than one chip, perhaps not only provided drive signal but also gate line provided only chip of drive signal data line.When on TFT panel 100, chip for driving 510 being installed, use glass flip chip encapsulation (COG) technology.
For chip for driving 510 is applied control signal, ductility circuit board 550 invests the first end of TFT substrate 100.Ductility circuit board 550 comprises the time schedule controller of the sequential that is used for the controlling and driving signal or is used for the storer of memory data signal.Ductility circuit board 550 is electrically connected to TFT panel 100, is provided with anisotropic conductive film between ductility circuit board 550 and TFT panel 100.
Backlight assembly 340 is arranged on the below of LC panel assembly 330, to provide uniform light to LC panel assembly 330.
Backlight assembly 340 comprises light source 344, is used to produce light; Optical plate 342 is used for the path of advancing of direct light; Optical sheet 343 is used for the incident light from optical plate 342 is uniformly dispersed; Reflecting plate 341 is used to reflect the light that leaks from optical plate 342.
Light source 344 is placed on the sidepiece of optical plate 342 to launch light to optical plate 342.This light source 344 can utilize the low relatively linear light sorurce of power consumption, for example cold-cathode fluorescence lamp (CCFL) and external-electrode fluorescent lamp (EEFL) and light emitting diode (LED).Another ductility circuit board (not shown) invests the sidepiece of light source 344 with control light source 344.In this embodiment, as mentioned above, light source 344 only is arranged on the side of optical plate 342.Selectively, light source 344 can be arranged on the both sides of optical plate 342.In addition, a plurality of light sources can be set below optical plate 342.In this case, can omit optical plate 342.
Optical plate 342 has can be with the leaded light pattern (not shown) of photoconduction to the viewing area of LC panel 300.
Optical sheet 343 is arranged between optical plate 342 and the LC panel 300.Optical sheet 343 will disperse equably from the incident light of optical plate 342, then homodisperse light is offered LC panel 300.
Simultaneously, selective reflection film 347 is arranged between LC panel assembly 330 and the backlight assembly 340.Under the situation that light source 344 is closed, for display image on the viewing area, this reflectance coating 347 arrives LC panel 300 with reflection of ambient light when light source 344 is closed.This situation is possible, because this reflectance coating 347 is designed to optionally transmission and reflected light.That is, when light source 344 was opened, reflectance coating 347 transmissions were from the incident light of backlight assembly 340, and this incident light is offered LC panel 300.On the contrary, when light source 344 is closed, for display image on the viewing area, reflectance coating 347 will arrive LC panel 300 by the reflection of ambient light that LC panel 300 enters.
Reflecting plate 341 is arranged on the below of optical plate 342.The light that leaks from optical plate 342 is reflected by this reflecting plate 342, turns back to optical plate 342, thereby improves optical efficiency.
Molded frame 364 holds reflecting plate 341, optical plate 342, optical sheet 343 and LC panel 300 in order.The molded frame 364 that comprises resin and plastic is provided with the bottom 251 of opening and 251 sidewalls 252 that extend from the bottom.
Ductility circuit board 550 is along the outer bend of the sidewall 252 of molded frame 364.A plurality of first outstanding 51 is formed on the outside of sidewall 252 of molded frame 364, and these are outstanding to combine with lower carriage 362.
The lower carriage 362 that comprises metal material defines the space that is used for holding therein molded frame 364.Lower carriage 362 comprises bottom 261 and the 261 upwardly extending sidewalls 262 from the bottom.A plurality of grooves 61 are formed on the sidewall 262 of lower carriage 362, and these grooves combine with outstanding 51 of molded frame 364.
When molded frame 364 combined with lower carriage 362, the part of the sidewall 262 of lower carriage 362 was positioned at the outside of the sidewall 252 of molded frame 364, and each first outstanding 51 each groove 61 that is inserted into lower carriage 362.At this moment, preferably form molded frame 364 and the part that the sidewall 262 of lower carriage 362 contacts, the amount that makes molded frame press down approximates the thickness of sidewall 262 greatly.
Upper bracket 361 is arranged on the top of LC panel 300.When upper bracket 361 makes up with lower carriage 362, realize on the LC panel 300 that effective viewing area that image shows remains on open state.The position of upper bracket 361 guiding LC panels 300 is fixed on the LC panel in the molded frame 364 subsequently.
With reference to Fig. 2 A and Fig. 2 B and Fig. 3 LC panel 300 according to the embodiment of the invention is described.
Fig. 2 A is the layout according to the LCD of the embodiment of the invention, and Fig. 2 B is the synoptic diagram that is illustrated in the pixel of arranging among the LCD of Fig. 2 A.Fig. 3 has shown two views of pixel cell that forms in the low resolution zone that is used for the LCD shown in the comparison diagram 2B and the pixel cell that forms in high-resolution areas.
With reference to Fig. 2 A and Fig. 2 B, chip for driving 510 is installed in the below of LC panel 300, and the viewing area of LC panel 300 is divided into low resolution zone and high-resolution areas.
Each pixel that forms in the low resolution zone is that four times of the pixel that forms in high-resolution areas are big.The low resolution zone for example, is used for showing as time, antenna sensitivity, remaining battery capacity etc. in mobile technology as the auxiliary display part branch that shows fixed pattern.
High-resolution areas is as the main display part that shows multiple and detail image.
With reference to Fig. 3, the pixel cell in low resolution zone is that four times of pixel cell of high-resolution areas are big, and the lead in these two zones is identical as gate line 121 with data line 171 and TFT.Therefore, the aperture opening ratio in low resolution zone is greater than the aperture opening ratio of high-resolution areas.For example, resolution is that the aperture opening ratio that 1.8 inches LCD panels of 128 * 160 demonstrate is about 53%.Similar with the low resolution zone, when Pixel Dimensions when to be increased to resolution be four times big of 1.8 inches LCD panels of 128 * 160, aperture opening ratio is increased to about 76%.That is, compare with the aperture opening ratio in the high-resolution areas, the aperture opening ratio in the low resolution zone has increased by 43%.
Although the light by selective reflection film 347 reflections when the light source among Fig. 1 344 is closed ad hoc is used for the image demonstration,, the aperture opening ratio that increases shows because can realizing high quality images.
If selective reflection film 347 is used among traditional LCD, then owing to optical efficiency in traditional LCD is too low, so when light source 344 is closed, will be difficult to accurately present desired images.Yet, when each pixel in being formed on image display area has large scale,,, when light source 344 is closed, only use selective reflection film 347 just can realize that high quality images shows in order to reduce power consumption as embodiments of the invention.
For example, in the LCD that mobile unit adopts, have only when using mobile unit backlight just can open, thus the reduction power consumption.Yet, for example, should be about the information of time or dump energy by continuous demonstration at any time to confirm these information.For this reason, the technology of proposition is that viewing area with the LC panel is divided into low resolution zone and high-resolution areas.In this case, the information that low resolution zone demonstration should be shown always, and high-resolution areas shows the out of Memory relevant with the actual use of mobile unit.Even this LCD makes some essential informations also can be shown when closing light source for conserve energy.
In this embodiment, each pixel that forms in the low resolution zone is constructed to have the size corresponding with 2 * 2 matrixes, that is, be four times of size of the pixel that forms in high-resolution areas, yet this size can change as required.
Below, the structure of LC panel 300 (shown in Figure 1) will be described in more detail.The pixel in high-resolution areas and low resolution zone has identical structure except their size.
Fig. 4 is that Fig. 5 is the cut-open view along the V-V ' of the line among Fig. 4 intercepting at the layout according to the pixel cell in the LC panel of the LCD of the embodiment of the invention.
Being constructed as follows of TFT panel 100.
Many gate line 121 is formed on the insulated substrate 110, and the transmission signal.Every gate line 121 extends basically in the horizontal direction, and comprises that a plurality of grids 124 and end 125, this end 125 have big relatively size to be connected with external device (ED).Gate line 121 is positioned on the viewing area except its end 125, end 125 be positioned at the viewing area around.Directly be integrated at gate driver circuit under the situation of TFT panel 100, can omit the end 125 of expansion.
Gate line 121 comprises different two-layer of physical property, that is, and and upper strata 121q and the 121p of lower floor.Upper strata 121q comprises low resistivity metal, for example contains metal such as the Al and the Al alloy of aluminium (Al), with delay and the reduction pressure drop that reduces signal.The 121p of lower floor comprises and has good physics, chemical property, and the material that has the good electrical contact performance with other material, particularly tin indium oxide (ITO) and indium zinc oxide (IZO).For example, (for example, MoW), Cr, Ta or Ti can be used to form the 121p of lower floor for Mo, Mo alloy.The preferred example of two-layer combination is following Cr layer and last AlNd layer.In Fig. 5, the lower floor of grid 124 and upper strata are expressed as 124p and 124q respectively.In addition, each end 125 of gate line 121 comprises two-layer, 125p of lower floor and upper strata 125q.
About 30 ° to about 80 ° of the sides of 121p of lower floor and upper strata 121q with respect to the surface tilt of substrate 110.
Comprise for example silicon nitride (SiN x) gate insulator 140 be formed on the gate line 121.
Comprise for example amorphous silicon hydride, a plurality of semiconductors 150 of being abbreviated as " a-Si " are formed on the gate insulator 140.Each semiconductor 150 basically forms on grid 124, and each semiconductor 150 covers the vast zone that comprises grid 124.
A plurality of islands shape Ohmic contact 163 and 165 is individually formed on semiconductor 150, and comprises the N+ amorphous silicon hydride of silicide for example or N type impurity high doped.One group of island shape Ohmic contact 163 and 165 is positioned on the peninsula body 150.
About 30 ° to about 80 ° of the sides of semiconductor 150 and Ohmic contact 163 and 165 with respect to the surface tilt of substrate 110.
Many data lines 171 and a plurality of drain electrode 175 be formed on Ohmic contact 163 and 165 and gate insulator 140 on.
Data line 171 extends on the vertical direction that intersects with gate line 121 basically, and the transmission data voltage.Every data line 171 comprises end 179, and this end 179 has big relatively size to be connected with external device (ED).Data line 171 all is positioned on the viewing area except its end 179, its end 179 be positioned at the viewing area around.
Every data line 171 comprises a plurality of source electrodes 173, and source electrode 173 is outstanding and drain 175 correspondingly with each from data line 171, and each source electrode 173 has branched form.One group of drain electrode 175 and source electrode 173 are separated mutually and are faced mutually.Grid 124, source electrode 173, drain electrode 175 and semiconductor 150 form TFT, and the TFT raceway groove is formed on the semiconductor 150, and semiconductor 150 is arranged on source electrode 173 and drains between 175.
Every data line 171 and each drain electrode 175 also have double-decker.171p of lower floor and 175p comprise for example Mo, Cr, Ta, Ti or its alloy, and upper strata 171q and 175q for example comprise metal material as containing the Al metal or containing the Ag metal.Each end 179 of data line 171 has upper strata 179q and the 179p of lower floor.
Similar with gate line 121, the side of the 171p of lower floor of data line 171 and upper strata 171q and drain 175 175p of lower floor and upper strata 175q also tilts about 30 ° to about 80 ° with respect to the surface of substrate 110.
Ohmic contact 163 underlie semiconductor 150 and on cover between the data line 171, Ohmic contact 165 underlie semiconductor 150 and on cover between the drain electrode 175, to reduce the contact resistance between the element.
Passivation layer 180 is formed on the exposed region of data line 171, drain electrode 175, semiconductor 150.Passivation layer 180 preferably comprises sensitization organic material with good smooth performance, have insulating material or inorganic material such as SiN less than 4.0 low relatively specific inductive capacity 2, the example of described insulating material can be a-Si:C:O or the a-Si:O:F that makes by plasma enhanced chemical vapor deposition (PECVD).
Passivation layer 180 has a plurality of contact holes 185 and 189, has exposed the end 179 and the drain electrode 175 of data line 171 respectively by contact hole 189 and 185.Form a plurality of contact holes 182 to penetrate passivation layer 180 and gate insulator 140, exposed the end 125 of the expansion of gate line 121 by contact hole 182.
A plurality of pixel electrodes 190 comprise transparent conductive material for example ITO or IZO with a plurality of auxiliary members 906 and 908 that contact, and are formed on the passivation layer 180.
Pixel electrode 190 by contact hole 185 with drain electrode 175 physical connections be electrically connected, with from the 175 reception data voltages that drain.
Pixel electrode 190 and adjacent gate lines 121 and adjacent data line 171 crossovers, with the increase aperture opening ratio, but the mutual crossover of pixel electrode 190.
Contact auxiliary member 906 is connected with the end 125 of gate line 121 and the end 179 of data line 171 with 189 by contact hole 182 individually with 908.The ends 125 that contact auxiliary member 906 and 908 replenish to enlarge and 179 and external device (ED) between adhesion, and protection end 125 and 179.Can omit the contact auxiliary member in some cases.
As shown in Figure 5, color filter panel 200 following structures.
Black matrix 220 is formed on the insulated substrate 210, and a plurality of color filters 230 are formed on the insulated substrate 210.Each color filter 230 is arranged on each pixel cell, and is limited by black matrix 220.Use red, green and blue (RGB) color filter.Do not have the zone of color filter can be formed on the color filter panel 200 or can use the white color filter of making by transparent resin in addition.
Public electrode 270 is formed on the color filter 230, and this electrode 270 comprises transparent conductive material, for example ITO or IZO.
Liquid crystal layer 3 places between TFT panel 100 and the color filter panel 200, and comprises the twisted nematic liquid crystal molecule.
This embodiment uses the liquid crystal molecule of aligned twisted.Yet, also can use when being parallel to each other with respect to two panels 100 and liquid crystal molecule 200 homeotropic alignments or that be arranged in parallel.
Following polarizer 12 and last polarizer 22 are separately positioned on the outside surface of two panels 100 and 200.
In LCD according to the present invention, when common electric voltage is applied to the public electrode 270 of color filter panel 200 when image signal voltage is applied to pixel electrode 190 by data line 171 when, between two electrodes, produce electric field, thereby be positioned at the orientation change of two interelectrode liquid crystal molecules.
In addition, though one group of pixel electrode 190 and public electrode 270 as the capacitor that after TFT ends, also can store the voltage that applies.This capacitor is called " liquid crystal capacitor ".In order to improve the store voltages ability, also can provide " holding capacitor ", holding capacitor and liquid crystal capacitor are connected in parallel.In order to form this holding capacitor, the storage electrode line (not shown) can be formed on the layer identical with gate line 121.
In an embodiment according to the present invention, the viewing area on the LC panel 300 is divided into aforesaid high-resolution areas and low resolution zone.Use description to drive the method in these two zones below.
Fig. 6 is the layout according to the driving circuit of the LCD of the embodiment of the invention, and Fig. 7 is the layout of driving circuit according to another embodiment of the present invention.
At first, with reference to Fig. 6, chip for driving 510 is installed on the LC panel 300, and the gate drivers 411 that is used to drive the low resolution zone is arranged on the left side in low resolution zone, and the gate drivers 412 that is used to drive high-resolution areas is arranged on the right of high-resolution areas.Here, gate drivers 411 and 412 can be installed in the shape of chip on the corresponding region of TFT panel 100, or can directly be integrated in this corresponding region.
TFT panel 100 comprises the gate line 121a in low resolution zone and the gate line 121b of high-resolution areas.Data line 171a (for example, even lines) is with all gate line 121a and 121b insulation and intersects, and data line 171b (for example, odd lines) only insulate with the gate line 121b of high-resolution areas and intersects.In this structure, the spacing between two adjacent gate lines 121a that form in the low resolution zone is the twice of the spacing between two adjacent gate lines 121b that form in high-resolution areas.
In the LCD according to this structure of the embodiment of the invention, at low resolution zone display image, drive signal can only be applied to the gate drivers 411 in low resolution zone, and is not applied to the gate drivers 412 of high-resolution areas for only.As a result, 171 of data lines provide the necessary image signal to the data line 171a that passes two resolution.
Next, with reference to Fig. 7, gate drivers 410 is arranged on the left side of low resolution zone and high-resolution areas, and passes this two zones.Here, gate drivers 410 can be installed in the shape of chip on the TFT panel 100, or can directly be integrated on the TFT panel 100.
In LCD,, only realize that in the low resolution zone image shows when high-resolution areas only receives the grid pick-off signal and low resolution zone when receiving gate turn-on and grid pick-off signal continuously according to this structure of the embodiment of the invention.In this case, data line 171 only provides the necessary image signal to the data line 171a that passes two resolution.
According to aforesaid embodiment, at low resolution zone display image, high-resolution areas is not applied drive signal or only applies the grid pick-off signal for only.Yet, high-resolution areas is applied the gate turn-on signal and the grid pick-off signal also is possible.
Embodiments of the invention are applied to Transflective LCD.
Except removing selective reflection film 347, the Transflective LCD of using embodiments of the invention has and the identical structure of structure among Fig. 1.
Similar with Fig. 2 A to Fig. 3, the LCD panel 300 of Transflective LCD also is divided into low resolution zone and high-resolution areas, and each pixel cell in low resolution zone is greater than each pixel cell of high-resolution areas.
The Transflective LCD of using the embodiment of the invention is described with reference to Fig. 8 and Fig. 9.
Fig. 8 is the layout of the pixel cell that forms in the LC panel of LCD according to another embodiment of the present invention, and Fig. 9 is the cut-open view along the IX-IX ' of the line among Fig. 8 intercepting.
TFT panel 100 following structures according to the embodiment of the invention.
Many gate line 121 is formed on the insulated substrate 110, and the transmission signal.Every gate line 121 extends basically in the horizontal direction, and comprises that a plurality of grids 124 and end 125, this end 125 have big relatively size to be connected with external device (ED).Gate line 121 all is positioned on the viewing area except its end 125, its end 125 be positioned at the viewing area around.Under gate driver circuit directly was integrated into situation on the TFT panel 100, the end 125 of expansion can be omitted.
Gate line 121 comprises different two-layer of physical property, that is, and and upper strata 121q and the 121p of lower floor.Upper strata 121q comprises low resistive metal, for example contains metal such as the Al and the Al alloy of aluminium (Al), with delay and the reduction pressure drop that reduces signal.The 121p of lower floor comprise have good physics, chemical property and the material that has the good electrical contact performance with other material, particularly tin indium oxide (ITO) and zinc-tin oxide (IZO).For example, (for example, MoW), Cr, Ta or Ti can be used to form the 121p of lower floor for Mo, Mo alloy.The preferred example of two-layer combination is following Cr layer and last AlNd layer.In Fig. 9, the lower floor of grid 124 and upper strata are expressed as 124p and 124q respectively.In addition, each end 125 of gate line 121 comprises two-layer, 125p of lower floor and upper strata 125q.
About 30 ° to about 80 ° of the sides of 121p of lower floor and upper strata 121q with respect to the surface tilt of substrate 110.
Comprise for example silicon nitride (SiN x) gate insulator 140 be formed on the gate line 121.
For example comprising, a plurality of semiconductors 150 of amorphous silicon hydride are formed on the gate insulator 140.Each semiconductor 150 basically forms on grid 124, and each semiconductor 150 covers the vast zone that comprises grid 124.
A plurality of islands shape Ohmic contact 163 and 165 is individually formed on semiconductor 150, and comprises the N+ amorphous silicon hydride of silicide for example or N type impurity high doped.One group of island shape Ohmic contact 163 and 165 is positioned on the peninsula body 150.
About 30 ° to about 80 ° of the sides of semiconductor 150 and Ohmic contact 163,165 with respect to the surface tilt of substrate 110.
Many data lines 171 and a plurality of drain electrode 175 be formed on Ohmic contact 163 and 165 and gate insulator 140 on.
Data line 171 extends on the vertical direction that intersects with gate line 121 basically, and the transmission data voltage.Every data line 171 comprises end 179, and this end 179 has big relatively size to be connected with external device (ED).Data line 171 all is positioned on the viewing area except its end 179, its end 179 be positioned at the viewing area around.
Every data line 171 comprises a plurality of source electrodes 173, and source electrode 173 is outstanding and drain 175 correspondingly with each from data line 171, and each source electrode 173 has branched form.One group of drain electrode 175 and source electrode 173 are separated mutually and are faced mutually.Grid 124, source electrode 173, drain electrode 175 and semiconductor 150 form TFT, and the TFT raceway groove is formed on the semiconductor 150, and semiconductor 150 is arranged on source electrode 173 and drains between 175.
Every data line 171 and each drain electrode 175 also have double-decker.171p of lower floor and 175p comprise for example Mo, Cr, Ta, Ti or its alloy, and upper strata 171q and 175q for example comprise metal material as containing the Al metal or containing the Ag metal.Each end 179 of data line 171 has upper strata 179q and the 179p of lower floor.
Similar with gate line 121, about 30 ° to about 80 ° of the sides of the 171p of lower floor of data line 171 and upper strata 171q and drain 175 175p of lower floor and upper strata 175q with respect to the surface tilt of substrate 110.
Ohmic contact 163 underlie semiconductor 150 and on cover between the data line 171, and Ohmic contact 165 underlie semiconductor 150 and on cover between the drain electrode 175, to reduce the contact resistance between the element.
Passivation layer 180 is formed on the exposed region of data line 171, drain electrode 175, semiconductor 150.Passivation layer 180 preferably comprises sensitization organic material with good smooth performance, have insulating material or inorganic material such as SiN less than about 4.0 low relatively specific inductive capacity 2, the example of described insulating material can be a-Si:C:O or the a-Si:O:F that makes by plasma enhanced chemical vapor deposition (PECVD).
Passivation layer 180 has a plurality of contact holes 185 and 189, has exposed the end 179 and the drain electrode 175 of data line 171 respectively by contact hole 185 and 189.Form a plurality of contact holes 182 to penetrate passivation layer 180 and gate insulator 140, exposed the end 125 of the expansion of gate line 121 by contact hole 182.
A plurality of transparency electrodes 192 comprise transparent conductive material for example ITO or IZO with a plurality of auxiliary members 906 and 908 that contact, and are formed on the passivation layer 180.
A plurality of reflecting electrodes 194 are individually formed on transparency electrode 192, and comprise the conductive material Ag for example with good reflection.Each reflecting electrode 194 has transmission window 195, in the unhinderedly transmission of transmission window 195 light quilt.
One group of transparency electrode 192 and reflecting electrode 194 can be used as pixel electrode 190, and each reflecting electrode 194 can be used as catoptrical reflectance coating.
Transparency electrode 192 by contact hole 185 with drain electrode 175 physical connections be electrically connected, with from the 175 reception data voltages that drain.
Contact auxiliary member 906 and 908 is separately connected to the end 125 of gate line 121 and the end 179 of data line 171 by contact hole 182 and 189.The ends 125 that contact auxiliary member 906 and 908 replenish to enlarge and 179 and external device (ED) between adhesion, and protection end 125 and 179.Can omit the contact auxiliary member.
As shown in Figure 9, color filter panel 200 can be constructed as follows.
Black matrix 220 is formed on the insulated substrate 210, and a plurality of color filters 230 are formed on the insulated substrate 210.Each color filter 230 is arranged on each pixel cell, and is limited by black matrix 220.Use red, green and blue (RGB) color filter.Do not have the zone of color filter can be formed on the color filter panel 200 or can use the white color filter that comprises transparent resin yet.
Public electrode 270 is formed on the color filter 230, and this electrode 270 comprises transparent conductive material, for example ITO or IZO.
Liquid crystal layer 3 places between TFT panel 100 and the color filter panel 200, and comprises the twisted nematic liquid crystal molecule.
This embodiment uses the liquid crystal molecule of aligned twisted.Yet, also can use when being parallel to each other with respect to two panels 100 and liquid crystal molecule 200 homeotropic alignments or that be arranged in parallel.
Following polarizer 12 and last polarizer 22 are separately positioned on the outside surface of two panels 100 and 200.
Transflective LCD can be used for reflective-mode, when surround lighting has when being suitable for high brightness that image shows the LCD reflect ambient light.Yet under the situation of the luminance shortage of surround lighting, reflective-mode is converted into transmission mode, is used for the light from the backlight emission that image shows under transmission mode.
In this Transflective LCD, when backlight is closed with conserve energy, work under reflective-mode in the low resolution zone, thereby no matter whether backlight works, and the necessary information of fixed pattern can be shown always.
Driving circuit or chip for driving with the Transflective LCD in two kinds of different resolution zones can be arranged to as shown in Figure 6 and Figure 7, and its driving method is with identical in the method that preceding illustrates.
Figure 10 A is the layout of LC panel according to another embodiment of the present invention, and Figure 10 B is the view that the part A among Figure 10 A is amplified.
With reference to Figure 10 A and 10B, the LCD of this embodiment comprises high-resolution areas and low resolution zone.In high-resolution areas, for colour shows that R, G and B color filter alternately are arranged on each pixel.In the low resolution zone, color filter is not set, W (white) color filter perhaps is set to show black and white on each pixel, this W color filter comprises for example transparent photoresistance film etc.Here, the size of the pixel that forms in the low resolution zone is 3 times of size of the pixel that forms in high-resolution areas.
As mentioned above, when the area of the pixel that in the low resolution zone, forms area greater than the pixel that in high-resolution areas, forms, for example, three elemental areas that the area of the pixel in the low resolution zone equals to form in high-resolution areas and, and when color filter not being set in the low resolution zone or only being provided with white color filter, because aperture ratio of pixels increases and does not produce the light absorption that is caused by the RGB color filter, so the optical efficiency in low resolution zone increases.If there is not the RGB color filter, transmittance has almost increased three times and aperture opening ratio and has also increased.Therefore, according to present embodiment, the optical efficiency that low resolution zone obtains is about four times of optical efficiency of high-resolution areas.
One group of R, G that in high-resolution areas, forms and B pixel, each group is expressed as a point, corresponding with the pixel that forms in the low resolution zone, therefore, this group the matrix that forms in high-resolution areas is corresponding with the matrix of the pixel that forms in the low resolution zone.Therefore, all pixels that form in the low resolution zone can receive picture signal from data line, and this data line passes these two zones and provide picture signal to the green pixel G that forms in high-resolution areas.
In this structure, according to embodiments of the invention, when the data line that is connected with the green pixel G of high-resolution areas when pixel in the low resolution zone is connected, any special variation or any Flame Image Process that the low resolution zone need not driving method just can show black and white.
In addition, as shown in Figure 6, when the gate drivers 412 that is used to drive high-resolution areas and the gate drivers 411 that is used to drive the low resolution zone be provided with respectively to drive these two individually when regional, with when showing at the image in low resolution zone in order only to realize, when data driving chip 510 was only worked under static schema, the energy of saving may be about 90% ratio.
Figure 11 A is the layout of LC panel according to another embodiment of the present invention, and Figure 11 B is the zoomed-in view of the part A among Figure 11 A.
With reference to Figure 11 A and Figure 11 B, the LCD of this embodiment is divided into high-resolution areas and low resolution zone.The low resolution zone further is divided into two zones, has the zone and the zone with blue color filter B of red color filter R.In high-resolution areas, R, G and B color filter alternately are arranged on each pixel to realize colored the demonstration.Here, the size of the pixel that forms in the low resolution zone is three times of size of the pixel that forms in high-resolution areas.
In this structure, R, G and B color filter can be formed on the whole low resolution zone.Selectively, after the low resolution zone is divided into zone shown in Figure 11 B, can on each zone, form different color filters.
The low resolution zone can show different colors according to the kind of information, and for example, temporal information can be blueness, and aerial information can be green, and battery charging state can be redness.
Figure 12 A is the layout of LC panel according to another embodiment of the present invention, and Figure 12 B is the zoomed-in view of the part A among Figure 12 A.
With reference to Figure 12 A and Figure 12 B, the LCD of this embodiment is divided into high-resolution areas and low resolution zone.The low resolution zone is divided into two zones.In a zone, each pixel is equipped with red color filter R and blue color filter B, and each color filter accounts for half of this pixel.In another zone, each pixel is equipped with green color filter G and blue color filter B, and each color filter accounts for half of this pixel.In high-resolution areas, R, G and B color filter alternately are arranged on each pixel to realize colored the demonstration.Here, the size of the pixel that forms in the low resolution zone is three times of size of the pixel that forms in high-resolution areas.
Be used for realizing that in the low resolution zone the colored method that shows is for showing different colors more than back, three zones in each zone with the low resolution area dividing.Other method is only to show a kind of color on whole low resolution zone.In addition, shown in Figure 11 B, monochromatic areas can be included in the low resolution zone.
For example, above-mentioned method makes the image that shows in the low resolution zone have the color of the primary colours of being different from (that is, red, green and blue).For example, when the setting of color filter was shown in Figure 12 B, the left-hand component in low resolution zone demonstrated purple V, and right-hand component demonstrates sky blue S.
Figure 13 is the layout of the driving circuit of LCD according to another embodiment of the present invention.
With reference to Figure 13, data line 171a in the low resolution zone and the data line 171b in the high-resolution areas form in a different manner.In detail, the data line 171b in the vertical direction in the high-resolution areas extends, and the data line 171a in the low resolution zone extends on the horizontal direction perpendicular to data line 171b.Therefore, the nethermost part that the inlet of data line 171b (access-from) part 792 is set at high-resolution areas is being connected with data driver 510, and the intake section 791 of data line 171a is arranged on the right in low resolution zone.
The intake section 791 in low resolution zone and the intake section 792 of high-resolution areas receive picture signal by separating the lead 511a and the 511b that are provided with from data driver 510.
The gate line 121a in low resolution zone extends on the vertical direction perpendicular to data line 171a, and the gate line 121b in the high-resolution areas extends on the horizontal direction perpendicular to data line 171b.Therefore, the gate drivers 411 in low resolution zone is arranged on the top in low resolution zone, and the gate drivers 412 of high-resolution areas is arranged on the left side in the high-resolution areas.Here, gate drivers 411 and 412 can be installed on each corresponding region that TFT panel 100 has chip form individually, or can directly be integrated on each corresponding region.
The low resolution zone of this embodiment be shaped as horizontal strip, data line 171a promptly, forms in the horizontal direction at the length direction in low resolution zone.Therefore, the quantity of the data line 171a that allows in this low resolution zone is less than when they Widths in the low resolution zone, the quantity when promptly forming on the vertical direction.For example, in resolution was 128 * 160 LCD, when when Width forms the data line 171a in low resolution zone, the admissible quantity of data line 171a was 128 * 3 in this zone.On the contrary, when forming data line 171a as present embodiment on the length direction in low resolution zone, the admissible quantity of data line 171a is 32 (obtaining by deducting 128 from 160).Yet in this case, the quantity of gate line 121a increases.
When the quantity of the data line 171a in low resolution zone as mentioned above reduced, the quantity of lead 511a that is used for data driver 510 is connected to the intake section 791 in low resolution zone also reduced.According to design, this minimizing of lead 511a helps the layout of lead.
Simultaneously, no matter how the quantity of gate line 121a changes, because be used for the gate drivers 411 that sweep signal offers gate line 121a is arranged on the top in low resolution zone, and the kind of signal that is applied to gate drivers 411 by data driver 510 is constant, even so the quantity of gate line 121a increases, the quantity that is used for data driver 510 is connected to the lead 512a of gate drivers 411 can not change yet.
As mentioned above, according to embodiments of the invention, form low resolution zone and high-resolution areas on the LCD panel, needing always, some information of the fixed pattern of demonstration are presented on two low resolution zones in the zone.
Therefore, the present invention allows the information of some type to show always, reduces power consumption simultaneously.
Can the individual drive high-resolution areas and the gate drivers in low resolution zone by adopting, can expect that in manufacturing process some edges have the lead of effective design.
Describe LCD according to another embodiment of the present invention in detail with reference to Fig. 1, Figure 14 and Figure 15.
Figure 14 is the block diagram of LCD according to another embodiment of the present invention, and Figure 15 is the equivalent circuit diagram of the pixel cell of LCD according to another embodiment of the present invention.
Referring again to Fig. 1, LCD comprises: LC panel assembly 330 is used to utilize light to come display image; Backlight assembly 340 is used to produce light; Selective reflection film 347 is arranged between LC panel assembly 330 and the backlight assembly 340; Molded frame 364 is used for holding therein LC panel assembly 330, selective reflection film 347 and backlight assembly 340; Upper bracket 361 and lower carriage 362 surround and support said elements.
LC panel assembly 330 comprises LC panel 330, chip for driving 510 and ductility circuit board 550.
LC panel 300 comprises lower panel 100 and top panel 200 and the LC layer (not shown) between upper and lower panel that faces with each other.
With reference to Figure 14, lower panel 100 comprises many display signal line G 1-G nAnd D 1-D mLower panel 100 and top panel 200 comprise a plurality of pixels, these pixels and display signal line G 1-G nAnd D 1-D mConnect also basically with arranged.
Display signal line G 1-G nAnd D 1-D mComprise many gate lines G that are used to transmit signal (being also referred to as " sweep signal ") 1-G nWith many data line D that are used for transmission of data signals 1-D mGate lines G 1-G nBasically also be parallel to each other basically in the line direction extension, and data line D 1-D mBasically on column direction, extend also and be parallel to each other basically.
Each pixel comprises on-off element Q, LC capacitor C LCWith holding capacitor C ST, on-off element Q and display signal line G 1-G nAnd D 1-D mConnect LC capacitor C LCWith holding capacitor C STQ is connected with on-off element.Holding capacitor C STCan omit.
On-off element Q such as thin film transistor (TFT) (TFT) are arranged on the lower panel 100 and have three terminals: the control terminals are connected to gate lines G 1-G nOne of; Input terminal is connected to data line D 1-D mOne of; Outlet terminal is connected to LC capacitor C LCWith holding capacitor C ST
As shown in figure 15, LC capacitor C LC Comprise pixel electrode 190 that is arranged on the lower panel 100 and the public electrode 270 that is arranged on the top panel 200, as two terminals.The effect of the LC layer 3 between two electrodes 190 and 270 is LC capacitor C LC Dielectric.Pixel electrode 190 is connected to on-off element Q, and public electrode 270 is provided common electric voltage V ComAnd the whole surface of covering top panel 200.Different with Figure 15, public electrode 270 can be arranged on the lower panel 100.In this case, the shape of at least one in pixel electrode 190 and the public electrode 270 can be bar shaped or band shape.
Holding capacitor C STBe LC capacitor C LCAuxiliary capacitor.When pixel electrode 190 with when being arranged on the independent mutual crossover of signal wire (not shown) on the lower panel 100 and being provided with insulator betwixt, the part of this crossover becomes holding capacitor C STIndependent signal wire is provided predetermined voltage such as common electric voltage V ComSelectively, can be by also being provided with insulator betwixt forms holding capacitor C with last gate line crossover with pixel electrode 190 ST, before this last gate line is located immediately at pixel electrode 190.
For colour shows that each pixel must show a kind of color.When each pixel comprises can the display primary redness, when green and one of blue color filter 230, the colored demonstration can realize in the zone that plate 200 and pixel electrode 190 are corresponding in the above.In Figure 14, color filter 230 is arranged on the top panel 200, and it can be arranged on the pixel electrode 190 of lower panel 100 or thereunder.
The polarizer (not shown) is arranged on two panels 100 and at least one outside surface of 200 of LC panel 300, is used to make the light generation polarization from the emission of two-dimension light source unit.
Gate drivers 400 is connected to gate lines G separately 1-G n, be used for and comprise gate-on voltage V from external device (ED) input OnWith grid cut-off voltage V OffThe signal of combination be transferred to signal line G 1-G nGate drivers 400 and on-off element Q and display signal line G 1-G n, D 1-D mBe integrated into together on the lower panel 100.
As shown in Figure 1, chip for driving 510 with IC chip form is directly installed on the lower panel 100 of LC panel 300, and chip for driving 510 comprises signal controller 600, be connected to the data driver 500 of signal controller 600 and be connected to the grayscale voltage generator 800 of data driver 500.
Grayscale voltage generator 800 produces two groups of a plurality of grayscale voltages relevant with the transmitance of pixel.Grayscale voltage in one group is with respect to common electric voltage V ComHave positive polarity, and the grayscale voltage in another group is with respect to common electric voltage V ComHas negative polarity.
Data driver 500 is connected to the data line D of LC panel 300 1-D m, be used for data voltage is transferred to data signal line D 1-D m, this data voltage is selected from the grayscale voltage that grayscale voltage generator 800 provides.
The operation of signal controller 600 control gate drivers 400 or data driver 500.
Backlight assembly 340 is arranged on the below of LC panel assembly 330, and being used for provides uniform light to LC panel 300.
Backlight assembly 340 comprises: the Lights section 344 is used to produce light; Optical plate 342 is used for the path that advances of direct light; Optical sheet 343 is used for the light from optical plate 342 inputs is disperseed equably; Reflecting plate 341 is used to reflect the light that leaks from optical plate 342; Light source controller 348 is connected to signal controller 600; Power unit 349 is connected to light source controller 348 and the Lights section 344.
The Lights section 344 comprises main light source 3441 and secondary light source 3442, and main light source 3441 and secondary light source 3442 are positioned at the both sides of optical plate 342 to launch light (seeing Figure 18) to optical plate 342.Main light source 3441 and secondary light source 3442 can freely exchange their position.This Lights section 344 can utilize the low relatively light emitting diode of power consumption (LED), or fluorescent light, for example cold-cathode fluorescence lamp (CCFL) or external-electrode fluorescent lamp (EEFL).But the quantity Be Controlled of LED.
The operation of power unit 349 is controlled in light source controller 348 responses from the control signal of signal controller 600.
Power unit 349 provides driving voltage according to the operation of light source controller 348 to the Lights section 344.
Optical plate 342 has the leaded light pattern (not shown) of the viewing area that light can be pointed to LC panel 300.
Optical sheet 343 is arranged between optical plate 342 and the LC panel 300.These optical sheets 343 will evenly disperse from the incident light of optical plate 342, then this light are offered LC panel 300.
Selective reflection film 347 is arranged between LC panel assembly 330 and the backlight assembly 340.When light source 344 is closed, this reflectance coating 347 with reflection of ambient light to LC panel 300, with in this case also can be on the viewing area display image.Because reflectance coating 347 is designed to optionally transmission or reflected light, so this situation can realize.That is, when light source 344 was opened, reflectance coating 347 transmissions were from the incident light of backlight assembly 340, and this incident light is offered LC panel 300.On the contrary, when light source 344 is closed, for display image on the viewing area, reflectance coating 347 will arrive LC panel 300 by the reflection of ambient light that LC panel 300 enters.
Reflecting plate 341 is arranged on the below of optical plate 342.The light that leaks from optical plate 342 is turned back to optical plate 342 then by these reflecting plate 341 reflections, thereby improves optical efficiency.
Molded frame 346 holds reflecting plate 341, optical plate 342, optical sheet 343 and LC panel 300 in order.Molded frame 364 is provided with open bottom 251 and the sidewalls 252 of 251 extensions from the bottom, and for example, this molded frame 364 contains resin and plastic.
Ductility circuit board 550 is along the outer bend of the sidewall 252 of molded frame 364.A plurality of first outstanding 51 is formed on the outside of sidewall 252 of molded frame 364, and a plurality of outstanding 51 combine with lower carriage 362.
The lower carriage 362 that comprises metal material defines the space that is used for holding therein molded frame 364, and lower carriage 362 has bottom 261 and the 261 upwardly extending sidewalls 262 from the bottom.A plurality of grooves 61 are formed on the sidewall 262 of lower carriage 362, and combine with outstanding 51 of molded frame 364.
When molded frame 364 combined with lower carriage 362, the part of the sidewall 262 of lower carriage 362 was positioned at the outside of the sidewall 252 of molded frame 364, and each first outstanding 51 is inserted in each groove 61 of lower carriage 362.At this moment, preferably form molded frame 364 and the part that the sidewall 262 of lower carriage 362 contacts, the amount that makes molded frame press down approximates the thickness of sidewall 262 greatly.
Upper bracket 361 is arranged on the top of LC panel 300.When upper bracket 361 is assembled with lower carriage 362, can realize on the LC panel 300 that effective viewing area that image shows keeps open state.The position of upper bracket 361 guiding LC panels 300 is fixed on the LC panel in the molded frame 364 subsequently.
Below, will the operation of above-mentioned LCD be described.
The signal controller 600 of chip for driving 510 receives received image signal R, G, B and is used to control the input control signal such as the vertical synchronizing signal V of the demonstration of received image signal from the external graphics controller (not shown) Sync, horizontal-drive signal H Sync, major clock MCLK, data enable signal DE.
Response received image signal R, G, B and input control signal, signal controller 600 is handled picture signal R, G and B, make it to be suitable for the operation of LC panel 300, and produce grid control signal CONT1 and data controlling signal CONT2, then grid control signal CONT1 and data controlling signal CONT2 are outputed to gate drivers 400 and data driver 500 respectively.
Grid control signal CONT1 comprises and is used to notify gate-on voltage V OnOutput vertical synchronization start signal STV and be used to control gate-on voltage V OnOutput time and at least one clock signal of output voltage.
Data controlling signal CONT2 comprise the beginning that is used for notification data transmission horizontal synchronization start signal STH, be used for designation data voltage to data line D 1-D mThe load signal LOAD that applies, be used for polarity with data voltage with respect to common electric voltage V ComThe reverse signal RVS and the data clock signal HCLK of counter-rotating.
Response is from the data controlling signal CONT2 of signal controller 600, data driver 500 receives the view data DAT of the row that is used for pixel continuously from signal controller 600, DAT converts the analog data voltage of selecting to from the grayscale voltage from grayscale voltage generator 800 with this view data, subsequently this data voltage is applied to the data line D of LC panel 300 1-D m
Gate drivers 400 responses are from the grid control signal CONT1 of signal controller 600, and Von is applied to gate lines G with gate-on voltage 1-G nThereby, conducting and gate lines G 1-G nThe on-off element Q that connects.Be applied to data line D 1-D mData voltage be applied to corresponding pixel by the on-off element Q that activates.
Be applied to the data voltage and the common electric voltage V of pixel ComBetween difference be represented as LC capacitor C LCThe voltage at two ends, i.e. pixel voltage.LC capacitor C LCIn the LC molecule according to the amplitude of pixel voltage orientation.
Backlight assembly 340 based on backlight control signal CONT3 control light source (for example, LED) 344 switch, backlight control signal CONT3 applies from external device (ED) according to the operation of the on-off element Q that selects or the operation of LCD.Next this operation of backlight assembly 340 will be described.Can apply backlight control signal CONT3 from signal controller 600.
When the light from LED 344 emissions passed LC layer 3, polarisation of light changed according to the orientation of LC molecule.Polarizer is converted into the poor of light transmission rate with the difference of light polarization.
By (representing and equal horizontal-drive signal H with " 1H " with horizontal cycle Sync, data enable signal DE and gate clock CPV one-period) for unit repeats this process, in image duration, all gate lines G 1-G nSequentially supplied with gate-on voltage V OnThereby, data voltage is applied to all pixels.When a frame end next frame began, control was applied to the reverse control signal RVS of data driver 500, thereby the polarity of data voltage is inverted (being also referred to as " frame inversion ") with respect to the polarity of former frame.May command reverse control signal RVS also, thus the polarity along the data voltage of data line transmission is inverted (for example, linear counter-rotating and some counter-rotating) in a frame, or the polarity of the data voltage in a packet is inverted (for example, row counter-rotating and some counter-rotating).
Below, the operation of backlight assembly 340 is described with reference to Figure 14, Figure 16, Figure 17 A and Figure 17 B.
Figure 16 is the block diagram according to the power unit of the embodiment of the invention, and Figure 17 A and Figure 17 B are arranged on two views according to the layout of two main light sources among the LCD of the embodiment of the invention more separately.
Shown in Figure 14 as reference, backlight assembly 340 comprises: light source controller 348; Power unit 349 is connected to light source controller 348; The Lights section 344 is connected to power unit 349 and comprises main light source 3441 and secondary light source 3442.
As shown in figure 16, power unit 349 comprises primary power part 981 and secondary source part 982.
Primary power part 981 receives input voltage V from portable energy source (not shown) such as battery b, receiving control signal EN1 from light source controller 348, output is suitable for the driving voltage V of the operation of main light source 3441 then Out1With ground voltage GND1.
Secondary source part 982 receives input voltage V from the portable energy source (not shown) bWith receive control signal EN2 from light source controller 348, output is suitable for the driving voltage V of the operation of secondary light source 3442 then Out2With ground voltage GND2.
Control signal EN1 and EN2 are as the main light source 3441 that applies from light source controller 348 and the enable signal of secondary light source 3442, and each determines whether primary power part 981 and secondary source part 982 are operated.That is, when control signal EN1 or EN2 are in " height " level, operate corresponding primary power part 981 or secondary source part 982, and when control signal EN1 or EN2 are in " low " level, corresponding primary power part 981 of inoperation or secondary source part 982.
With reference to Figure 17 A, the main light source 3441 of the Lights section 344 comprises a plurality of light sources, that is, and and four mutual LED coupled in series L1 to L4.Drive terminals A1 and receive driving voltage V from primary power part 981 Out1, ground terminals B1 receives ground voltage GND1 from primary power part 981.
Secondary light source 3442 comprises LED L5.Drive terminals A2 and receive driving voltage V from secondary source part 982 Out2, ground terminals B2 receives ground voltage GND2 from secondary source part 982.
In each main light source 3441 and secondary light source 3442, can change the quantity of LED.
According to the operation of primary power part 981, main light source 3441 can be opened or closed.That is, when the operation of primary power part 981 began, primary power part 981 was with driving voltage V Out1Supply with corresponding main light source 3441 with ground voltage GND1, thereby corresponding main light source 3441 is opened.Under opposite situation, main light source 3441 is closed.
Similarly, according to the operation of secondary source part 982, secondary light source 3442 is opened or closed.That is, when the operation of secondary source part 982 began, secondary source part 982 was with driving voltage V Out2Supply with corresponding secondary light source 3442 with ground voltage GND2, thereby corresponding secondary light source 3442 is opened.Under opposite situation, secondary light source 3442 is closed.
Shown in Figure 17 A, according to the viewing area of the LCD panel 300 of the embodiment of the invention be divided into the main display part 301 corresponding with high-resolution areas and with corresponding inferior display part 302, low resolution zone.In this embodiment, based on resolution, the viewing area is divided into two zones, but the various standards except resolution, and for example the size of viewing area also can be used to divide the viewing area.
Main display part 301 is zones that various images can be by freedom and critically shown, and inferior display part 302 is to show to be used to notify for example zone of the fixed mode image of time, antenna sensitivity, remaining battery capacity.Because the fixed mode image can only be represented with minimum or maximum gray scale fully, although resolution is low, having no problem aspect the demonstration fixed mode image in inferior display part 302.
Shown in Figure 17 A, in the horizontal direction, main light source 3441 is arranged on the bottom that LC panel 300 is adjacent to main display part 301, and secondary light source 3442 is arranged on the top that LC panel 300 is adjacent to time display part 302.In this case, the LED L1 to L4 of main light source 3441 is close to main display part 301 and arranges to have the interval of rule betwixt, homodisperse light is provided to main display part 301.Similarly, the LED L5 of secondary light source 3442 is arranged in the center on the top of LCD panel 300, can be provided to the inferior display part 302 of LCD panel 300 most effectively from the light of LED L5 emission at this place.Yet, can change the layout of this LED L1 to L5.
The operation of above-mentioned backlight assembly 340 below will be described.
As mentioned above, main light source 3441 and secondary light source 3442 each operation according to primary power part 981 and secondary source part 982 are opened or closed individually.
That is, response backlight control signal CONT3, light source controller 348 is checked each enable signal EN1 and the EN2 that is applied to primary power part 981 and secondary source part 982 respectively, exports the signal corresponding to the state of EN1 and EN2 then.For example, when using all main display parts 301 and inferior display part 302, light source controller 348 makes all states of enable signal EN1 and EN2 all be in high level.Selectively, when only using main display part 301, have only enable signal EN1 to be in high level.
In addition, for 302 fixed mode main information of demonstration, when main display part 301 does not have image, have only enable signal EN2 should be high level in inferior display part.When the operation of LCD during no longer than preset time, all enable signal EN1 and EN2 are low level.Alternatively, response enable signal EN1 can operate with above-mentioned different mode with secondary light source 3442 with the main light source 3441 that EN2 is activated separately.
When according to the state of operation primary power part 981 of corresponding enable signal EN1, driving voltage V Out1Be applied to the driving terminals A1 of corresponding main light source 3441, ground voltage GND1 is applied to ground terminals B1, thereby main light source 3441 is opened, to corresponding main display part 301 emission light.In addition, when according to the state of operation secondary source part 982 of corresponding enable signal EN2, driving voltage V Out2Be applied to the driving terminals A2 of corresponding secondary light source 3442, ground voltage GND2 is applied to ground terminals B2, thereby secondary light source 3442 is opened, to corresponding time display part 302 emission light.
Figure 17 B has shown another embodiment according to the main light source 3441 of the embodiment of the invention.Except LEDL1 to L4 be arranged in parallel, the operation of this embodiment is identical with the operation of the last example shown in reference Figure 17 A basically.In this structure, according to the driving voltage V that provides from primary power part 981 Out1Whether be applied to corresponding driving terminals A1 and terminals B1 accordingly with ground voltage GND1, the main light source 3441 that comprises LED L1 to L4 is opened or closed.
In this mode, after LCD panel 300 is divided into a plurality of zones, according to the state in the zone of each division, main light source 3441 and secondary light source 3442 are opened or closed individually, thereby can reduce the power consumption that the unnecessary light by main light source 3441 and secondary light source 3442 produces.
With reference to Figure 18 to Figure 19 B LCD is according to another embodiment of the present invention described.
Figure 18 is the decomposition diagram of schematically illustrated LCD according to another embodiment of the present invention.Figure 19 A and Figure 19 B are the views that is arranged on more separately according to the layout of two main light sources among two LCD of other embodiments of the invention.
Except the position of main light source 3441 and secondary light source 3442, LCD and the LCD among Fig. 1 among Figure 18 are basic identical.That is, main light source 3441 and secondary light source 3442 are installed along the side of optical plate 342 with row, and they can be installed in opposite side.
Because this structure, in Figure 19 A and Figure 19 B, the LED L1 to L5 of main light source 3441 and secondary light source 3442 can be arranged on any side of LC panel 300, and this LC panel 300 is divided into main display part 301 and time display part 302.That is, the LED L1 to L4 of main light source 3441 is arranged in a side of main display part 301, has the interval of rule between L1 to L4; And the LED L5 of secondary light source 3442 is arranged in a side of time display part 302.This layout makes that the light that is provided for LCD is abundant.In Figure 19 A and Figure 19 B, main light source 3441 and secondary light source 3442 are positioned at the right of LCD panel 300, yet they can be positioned at the left side.
Difference between Figure 19 A and Figure 19 B is the connection status of LED.With Figure 17 A and Figure 17 category-B seemingly, the connection of contacting mutually of the LED L1 to L4 among Figure 19 A, and LED L1 to the L4 connection parallel with one another among Figure 19 B.
The operation of main light source 3441 and secondary light source 3442 is identical with reference to the operation shown in Fig. 1 and Figure 17 A and Figure 17 B with the front.
According to embodiments of the invention, the viewing area of LCD panel is divided into main display part and time display part, in each display part independent light source is set, and optionally operates corresponding light source with the mode of operation according to each display part.In this structure, when necessary image must only be presented at corresponding display part, the part that optionally drives whole light source was possible.Therefore, reduce the power consumption of light source, thereby also reduced the total power consumption of display device.
Although described the embodiment that illustrates with reference to the accompanying drawings at this, but should be appreciated that, the present invention is not limited to those accurate embodiment, and under situation about not departing from the scope of the present invention with spirit, those of ordinary skill in the art can make various other changes and modification.The all such changes and modifications intention is included in the scope of the present invention that is defined by the claims.

Claims (25)

1, a kind of liquid crystal indicator comprises:
The low resolution zone;
High-resolution areas,
Wherein, the pixel that forms in described low resolution zone is greater than the pixel that forms in described high-resolution areas, and described low resolution zone drives with two different gate drive apparatus respectively with described high-resolution areas.
2, liquid crystal indicator according to claim 1 also comprises:
The transmissive liquid crystal display panel assembly;
Backlight assembly is used for providing light to described display panels assembly;
Selective reflection film is arranged between described backlight assembly and the described display panels assembly.
3, liquid crystal indicator according to claim 2, wherein, described transmissive liquid crystal display panel assembly comprises:
Thin-film transistor display panel;
Color filter panel, it is relative with described thin-film transistor display panel and have predetermined interval betwixt;
Liquid crystal layer places between described thin-film transistor display panel and the described color filter panel;
First polarizer and second polarizer are separately positioned on the outside surface of described thin-film transistor display panel and described color filter panel.
4, liquid crystal indicator according to claim 3 also comprises:
Data driving chip is installed on the described thin-film transistor display panel;
Described two different gate drive apparatus are respectively: the first grid chip for driving is installed on the described thin-film transistor display panel to drive described low resolution zone; The second grid chip for driving is installed on the described thin-film transistor display panel to drive described high-resolution areas.
5, liquid crystal indicator according to claim 3 also comprises:
Data driving chip is installed on the described thin-film transistor display panel;
Described two different gate drive apparatus are respectively: the first grid driving circuit is formed on the described thin-film transistor display panel to drive described low resolution zone; The second grid driving circuit is formed on the described thin-film transistor display panel to drive described high-resolution areas.
6, liquid crystal indicator according to claim 3, wherein, described thin-film transistor display panel comprises:
Many first grid polar curves are formed on described low resolution zone;
Many second grid lines are formed on described high-resolution areas;
Many first data lines intersect with described first grid polar curve and described second grid line, described many first data lines and described first grid polar curve and the insulation of described second grid line;
Many second data lines intersect with described second grid line and insulate, and do not intersect with described first grid polar curve.
7, liquid crystal indicator according to claim 6, wherein, described first data line and described second data line are alternately arranged one by one.
8, liquid crystal indicator according to claim 6, wherein, between two adjacent first grid polar curves is the twice at two intervals between the adjacent second grid line at interval.
9, liquid crystal indicator according to claim 1 also comprises:
Saturating reflective liquid crystal display panels assembly;
Backlight assembly is used for providing light to described display panels assembly.
10, liquid crystal indicator according to claim 9, wherein, described reflective liquid crystal display panels assembly comprises:
Thin-film transistor display panel comprises the reflecting electrode that is formed on the transparency electrode and has transmission window;
Color filter panel, relative with described thin-film transistor display panel, and have predetermined interval betwixt;
Liquid crystal layer places between described thin-film transistor display panel and the described color filter panel;
First polarizer and second polarizer are separately positioned on the outside surface of described thin-film transistor display panel and described color filter panel.
11, liquid crystal indicator according to claim 10, wherein, described thin-film transistor display panel comprises:
Many first grid polar curves are formed on described low resolution zone;
Many second grid lines are formed on described high-resolution areas;
Many first data lines intersect with described first grid polar curve and described second grid line and insulate;
Many second grid lines intersect with described second grid line and insulate, and do not intersect with described first grid polar curve.
12, liquid crystal indicator according to claim 11, wherein, described first data line and described second data line are alternately arranged one by one.
13, liquid crystal indicator according to claim 11, wherein, between two adjacent first grid polar curves is the twice at two intervals between the adjacent second grid line at interval.
14, a kind of liquid crystal indicator comprises:
The low resolution zone; With
High-resolution areas;
Wherein, be formed on pixel in the described low resolution zone greater than the pixel that is formed in the described high-resolution areas, and at least a portion in described low resolution zone only shows a kind of color, and described low resolution zone drives with two different gate drive apparatus respectively with described high-resolution areas.
15, liquid crystal indicator according to claim 14, wherein, the pixel that forms in described low resolution zone is the about three times big of pixel that forms in described high-resolution areas.
16, liquid crystal indicator according to claim 15, wherein, the matrix of the pixel that forms in described low resolution zone is corresponding with the matrix of the pixel groups that forms in described high-resolution areas, and each pixel groups comprises redness, green and blue pixel and is expressed as a little in described high-resolution areas.
17, liquid crystal indicator according to claim 16 wherein, is used for providing the data line of picture signal to extend up to described low resolution zone to the green pixel of described high-resolution areas.
18, liquid crystal indicator according to claim 14, wherein, described low resolution zone display white and black.
19, liquid crystal indicator according to claim 14, wherein, described low resolution zone comprises a plurality of monochromatic areas, each monochromatic areas only shows a kind of color, and each monochromatic areas shows the color different with other monochromatic areas.
20, liquid crystal indicator according to claim 19, wherein, at least one in the described monochromatic areas comprises the pixel that each pixel has two kinds of color filters.
21, a kind of liquid crystal indicator comprises:
The low resolution zone;
High-resolution areas;
Wherein, described low resolution zone comprises many first grid polar curves and many first data lines, and described high-resolution areas comprises many second grid lines and many second data lines,
Wherein, the pixel that forms in described low resolution zone is greater than the pixel that forms in described high-resolution areas;
Wherein, every of described first data line is extended on the length direction in described low resolution zone, and described low resolution zone drives with two different gate drive apparatus respectively with described high-resolution areas.
22, liquid crystal indicator according to claim 21, wherein, described second data line extends and is vertical with described first data line.
23, liquid crystal indicator according to claim 22, also comprise the first grid driving circuit, sidepiece and the described length direction in described low resolution zone that described first grid driving circuit is arranged on described low resolution zone extend, and described first grid driving circuit provides sweep signal to described first grid polar curve.
24, liquid crystal indicator according to claim 23, also comprise the second grid driving circuit, described second grid driving circuit is arranged on the sidepiece of described high-resolution areas and extends on the direction identical with described second data line, and described second grid driving circuit provides sweep signal to described second grid line.
25, liquid crystal indicator according to claim 22 also comprises:
Data drive circuit is used for providing picture signal to described first data line and described second data line;
Lead is used for described data drive circuit is connected to described first data line.
CNB2005101275515A 2004-12-14 2005-12-05 Thin film transistor panel and liquid crystal display using the same Active CN100501544C (en)

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