CN103207478B - Liquid crystal panel with electric field controlled birefringence mode and liquid crystal display device thereof - Google Patents
Liquid crystal panel with electric field controlled birefringence mode and liquid crystal display device thereof Download PDFInfo
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- CN103207478B CN103207478B CN201210163096.4A CN201210163096A CN103207478B CN 103207478 B CN103207478 B CN 103207478B CN 201210163096 A CN201210163096 A CN 201210163096A CN 103207478 B CN103207478 B CN 103207478B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 191
- 230000005684 electric field Effects 0.000 title claims abstract description 20
- 239000010408 film Substances 0.000 claims abstract description 122
- 239000000758 substrate Substances 0.000 claims abstract description 71
- 239000010409 thin film Substances 0.000 claims abstract description 55
- 230000003287 optical effect Effects 0.000 claims description 59
- 238000001914 filtration Methods 0.000 claims description 52
- 230000000149 penetrating effect Effects 0.000 claims description 27
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000004070 electrodeposition Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
An electric field controlled birefringence mode liquid crystal panel comprising: a color filter substrate and a thin film transistor substrate; a liquid crystal layer disposed between the color filter substrate and the TFT substrate, wherein the liquid crystal layer comprises electric field controlled birefringence mode liquid crystal, and the upper alignment direction of the liquid crystal layer is opposite to and parallel to the lower alignment direction of the liquid crystal layer; a retardation compensation film disposed on the first surface of the color filter substrate, wherein the retardation value Re in-plane direction of the retardation compensation film is between 190nm and 380nm, and the retardation value Rth in thickness direction is between 95nm and 190 nm; and a polarizing plate disposed on the second surface of the retardation compensation film, wherein only the retardation compensation film is interposed between the polarizing plate and the color filter substrate.
Description
Technical field
The present invention has about a kind of liquid crystal indicator, relates to a kind of liquid crystal panel of electrical control birefringence mode especially.
Background technology
Liquid crystal display (LCD) is used in field of information display widely.Due to the optical anisotropy (anisotropy) of liquid crystal material itself, when different directions is watched, incident light is caused to see different effective birefringences (birefringence).Therefore, the visual angle of traditional liquid crystal display is also not as self-emitting display, and such as the visual angle of cathode-ray tube (CRT) (CRT), organic electro-luminescent display (OLED) and plasma display panel (PDP) is wide.
Fig. 1 is the three-dimensional exploded view penetrating pattern liquid crystal indicator of electric field controls birefringence (ECB) pattern in prior art; One liquid crystal indicator 100 comprises a liquid crystal panel 110 and has first substrate 112, second substrate 116 and a liquid crystal layer 115 is configured between first substrate 112 and second substrate 116; One first Polarizer 160 is configured at the outside of liquid crystal panel 110, and one second Polarizer 170 is configured at the outside of liquid crystal panel 110; The birefringence-compensated film 120 of one negative polarity is configured between the first Polarizer 160 and liquid crystal panel 110; The birefringence-compensated film 130 of one positive polarity is configured between the second Polarizer 170 and liquid crystal panel 110; One quarter-wave plate (QWP) 140 and 1/1st ripple plate (HWP) 145 are configured between the first Polarizer 160 and the birefringence-compensated film 120 of negative polarity; / 1st ripple plate 150 is configured between the second Polarizer 170 and the birefringence-compensated film 130 of positive polarity.
There is in above-mentioned prior art the birefringent optical compensation films of two panels opposed polarity, the birefringent optical compensation films of this two panels opposed polarity can compensate each other mutually, more particularly, one incident light LI, such as be derived from backlight module (BLU), sequentially through the first Polarizer 160, / 2nd ripple plates 145, quarter-wave plate 140, the birefringence-compensated film 120 of negative polarity, liquid crystal panel 110, the birefringence-compensated film 130 of positive polarity, after 1/2nd ripple plates 150 and the second Polarizer 170, and arrive beholder, in liquid crystal panel 110, there is a liquid crystal layer 115 and comprise electric field controls birefringence (electricalcontrolbirefringence, ECB) liquid crystal, two both alignment layers (not shown) are more comprised in above-mentioned liquid crystal panel 110, lay respectively at the interface of liquid crystal layer 115 and first substrate 112 and second substrate 116, liquid crystal molecule arranges according to both alignment layers, make its tool one continuous print tilt angle (pre-tiltangle), between scope greatly between 5 degree to 10 degree, the gap thickness scope of liquid crystal layer is approximately 4.15 microns (μm).
First optical compensation films, such as, have a compensate film of negative polarity birefringence (△ n<0), comprises disk like (disk-like) liquid crystal molecule 125; Second optical compensation films, such as, have a compensate film of positive polarity birefringence (△ n>0), comprises rod shape (rod-like) liquid crystal molecule 135.
Fig. 2 is the polar relationship figure in prior art between each compensate film and liquid crystal layer; The birefringence that liquid crystal indicator 100 after compensating utilizes the birefringence-compensated film 120 and 130 of opposed polarity to compensate liquid crystal layer in liquid crystal panel 110 changes, due to the birefringence-compensated effect that the birefringence-compensated film of negative polarity 120 is different from positive polarity birefringence-compensated film 130 tool, therefore the birefringence between birefringence-compensated film 120 and 130 changes and is also compensated, and then make this liquid crystal display under white background pattern (normallywhite), obtain broader visual angle.
But the compensation framework penetrating pattern liquid crystal indicator of above-mentioned electric field controls birefringence (ECB) pattern uses the birefringence-compensated film of upper and lower two group of 1/2nd ripple plate, one group of quarter-wave plate and opposed polarity, and its manufacturing cost is higher.
Fig. 3 A and 3B is the sectional exploded view of the Transflective formula liquid crystal indicator of electric field controls birefringence (ECB) pattern in prior art, this liquid crystal indicator comprises upper and lower Polarizer 60,80, upper and lower two group of 1/2nd ripple plate (HWP) 50,70, upper and lower two groups of quarter-wave plate (QWP) 52,72 and liquid crystal layers 40; Fig. 3 A shows when not applying a voltage when the liquid crystal layer 40 of electric field controls birefringence (ECB) pattern, and light cannot pass through upper Polarizer 60, from inside to outside to present dark picture; Fig. 3 B shows when applying one voltage is when the liquid crystal layer 40 of electric field controls birefringence (ECB) pattern, and light can pass through upper Polarizer 60, from inside to outside to present bright scene; But the compensation framework of the Transflective formula liquid crystal indicator of above-mentioned electric field controls birefringence (ECB) pattern uses upper and lower two group of 1/2nd ripple plate 50,70 and upper and lower two groups of quarter-wave plates 52,72, and its manufacturing cost is still high.
Therefore, just there are needs to provide a kind of electric field controls birefringence (ECB) mode liquid crystal panel, aforesaid problem can be solved.
Summary of the invention
In view of this, fundamental purpose of the present invention be to provide that a kind of framework is simple, electric field controls birefringence (ECB) the mode liquid crystal panel of low cost of manufacture and liquid crystal indicator.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of electric field controls birefringence (electricalcontrolbirefringence; ECB) liquid crystal panel of pattern, comprises:
One colored optical filtering substrates and a thin film transistor base plate, wherein this colored optical filtering substrates is a upper substrate, and this thin film transistor base plate is an infrabasal plate;
One liquid crystal layer, be configured between this colored optical filtering substrates and this thin film transistor base plate, wherein this liquid crystal layer comprises electrical control birefringence mode liquid crystal, and the upper alignment direction of this liquid crystal layer is contrary and parallel with the lower alignment direction of this liquid crystal layer;
One first-phase potential difference compensate film, wherein this colored optical filtering substrates is between this first-phase potential difference compensate film and this liquid crystal layer, and in the face of this first-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One first Polarizer, wherein this first-phase potential difference compensate film is between the first Polarizer and this colored optical filtering substrates, and is only plugged with this first-phase potential difference compensate film between this first Polarizer and this colored optical filtering substrates.
Preferably, this first-phase potential difference compensate film is 1/2nd ripple plates.
Preferably, this colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and those pixel electrodes are configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode only comprises a reflecting electrode.
Preferably, 90 degree are accompanied between the lower alignment direction of this liquid crystal layer and X-axis, accompany 270 degree between the upper alignment direction of this liquid crystal layer and X-axis, between the slow axis of this first-phase potential difference compensate film and X-axis, accompany 130 degree, and accompany 60 degree between the absorption axle of this first Polarizer and X-axis.
Preferably, also include:
One second-phase potential difference compensate film, wherein this thin film transistor base plate is between this second-phase potential difference compensate film and this liquid crystal layer, and in the face of this second-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One second Polarizer, wherein this second-phase potential difference compensate film is between the second Polarizer and this thin film transistor base plate, and is only plugged with this second-phase potential difference compensate film between this second Polarizer and this thin film transistor base plate.
Preferably, this second-phase potential difference compensate film is 1/2nd ripple plates.
Preferably, this colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and those pixel electrodes are configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode only comprises a transparency electrode.
Preferably, this colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and those pixel electrodes are configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode comprises a reflecting electrode and a transparency electrode.
Preferably, be one first gap at this colored optical filtering substrates of this reflecting electrode position and the gap of this thin film transistor base plate, be one second gap at this colored optical filtering substrates of this transparency electrode position and the gap of thin film transistor base plate, this second gap is substantially the twice in this first gap.
Preferably, the penetrating region of single pixel and echo area only need single thin film transistor (TFT) to drive.
Preferably, definition has an XYZ coordinate axle, 60 degree are accompanied between the absorption axle of this second Polarizer and X-axis, 130 degree are accompanied between the slow axis of this second-phase potential difference compensate film 270 and X-axis, 90 degree are accompanied between the lower alignment direction of this liquid crystal layer and X-axis, accompany 270 degree between the upper alignment direction of this liquid crystal layer 240 and X-axis, between the slow axis of this first-phase potential difference compensate film 250 and X-axis, accompany 130 degree, and accompany 60 degree between the absorption axle of this first Polarizer and X-axis.
A kind of electrical control birefringence mode (electricalcontrolbirefringence; ECB) liquid crystal indicator of pattern, comprises a liquid crystal panel, and this liquid crystal panel comprises:
One colored optical filtering substrates and a thin film transistor base plate, wherein this colored optical filtering substrates is a upper substrate, and this thin film transistor base plate is an infrabasal plate;
One liquid crystal layer, be configured between this colored optical filtering substrates and thin film transistor base plate, wherein this liquid crystal layer comprises the liquid crystal of electrical control birefringence mode, and the upper alignment direction of this liquid crystal layer is contrary and parallel with the lower alignment direction of this liquid crystal layer; And
One first-phase potential difference compensate film, be configured at the first surface of this colored optical filtering substrates, wherein this colored optical filtering substrates is between this first-phase potential difference compensate film and this liquid crystal layer, and in the face of this first-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm;
One first Polarizer, wherein this first-phase potential difference compensate film is between the first Polarizer and this colored optical filtering substrates, and is only plugged with this first-phase potential difference compensate film between this first Polarizer and this colored optical filtering substrates;
And a backlight module, be configured at below this liquid crystal panel.
Preferably, this liquid crystal panel separately comprises:
One second-phase potential difference compensate film, wherein this thin film transistor base plate is between this second-phase potential difference compensate film and this liquid crystal layer, and in the face of this second-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One second Polarizer, wherein this second-phase potential difference compensate film is between the second Polarizer and this thin film transistor base plate, and is only plugged with this second-phase potential difference compensate film between this second Polarizer and this thin film transistor base plate.
Because liquid crystal panel of the present invention only needs that this phase difference compensation film is this most simply compensates framework, can reach the optical appearance of required wide viewing angle, compared to the compensation framework of prior art, manufacturing cost of the present invention is lower.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view that in prior art, electric field controls birefringence (ECB) pattern penetrates pattern liquid crystal indicator;
Fig. 2 is the polar relationship figure in prior art between each compensate film and liquid crystal layer;
Fig. 3 A and 3B is the sectional exploded view of electric field controls birefringence (ECB) pattern Transflective formula liquid crystal indicator in prior art;
Fig. 4 is the diagrammatic cross-section of the electrical control birefringence mode Transflective formula liquid crystal indicator of first embodiment of the invention;
Fig. 5 is the n of phase difference compensation film of the present invention
x, n
yand n
zrelation;
Fig. 6 is the part isometric schematic diagram of first embodiment of the invention electrical control birefringence mode Transflective formula liquid crystal indicator;
Fig. 7 is the curve map that penetrating region (T) applies that voltage and penetrance and echo area (R) apply voltage and reflectivity;
Fig. 8 has the penetrating region (T) of this first and second phase difference compensation film and the visual angle figure of echo area (R) in first embodiment of the invention;
Fig. 9 is not for have the penetrating region (T) of this first and second phase difference compensation film and the visual angle figure of echo area (R);
Figure 10 is the diagrammatic cross-section of second embodiment of the invention electrical control birefringence mode reflection pattern liquid crystal indicator;
Figure 11 is the diagrammatic cross-section that third embodiment of the invention electrical control birefringence mode penetrates pattern liquid crystal indicator.
[main element symbol description]
40 liquid crystal layer 1/50th 2 ripple plates
52 quarter-wave plate 60 Polarizers
/ 70th 2 ripple plate
72 quarter-wave plate 80 Polarizers
100 liquid crystal indicator 110 liquid crystal panels
112 first substrate 115 liquid crystal layers
The birefringence-compensated film of 116 second substrate 120 negative polarity
125 smectic 135 rod shape liquid crystal molecules
130 positive polarity birefringence-compensated film 140 quarter-wave plate
/ 145th 2 ripple plate 1/150th 2 ripple plate
160 first Polarizer 170 second Polarizers
200 liquid crystal indicator 210 liquid crystal panels
220 colored optical filtering substrates 222 transparency carriers
224 transparent common electrode 226 surfaces
230 thin film transistor base plate 232 transparency carriers
234 pixel electrode 236 surfaces
234a transparency electrode 234b reflecting electrode
Alignment direction on 240 liquid crystal layers 242
244 times alignment direction 250 phase difference compensation films
252 surperficial 260 Polarizers
264 absorb axle 266 slow axis
270 phase difference compensation films
272 surperficial 280 Polarizers
284 absorb axle 286 slow axis
290 backlight modules
300 liquid crystal indicator 310 liquid crystal panels
320 colored optical filtering substrates 330 thin film transistor base plates
334 pixel electrode 334b reflecting electrodes
340 liquid crystal layer 350 phase difference compensation films
360 Polarizers
400 liquid crystal indicator 410 liquid crystal panels
420 colored optical filtering substrates 430 thin film transistor base plates
434 pixel electrode 434a transparency electrodes
440 liquid crystal layer 450 phase difference compensation films
460 Polarizer 470 phase difference compensation films
480 Polarizer 490 backlight modules
D1 first clearance D 2 second gap
D thickness LI incident light
P picture element R echo area
T penetrating region
Embodiment
Please refer to Fig. 4, the electric field controls birefringence (electricalcontrolbirefringence of its display first embodiment of the invention; ECB) the Transflective formula liquid crystal indicator 200 of pattern; This Transflective formula liquid crystal indicator 200 comprises liquid crystal panel 210 and a backlight module 290, this liquid crystal panel 210 comprises colored optical filtering substrates 220, thin film transistor base plate 230, liquid crystal layer 240, first-phase potential difference compensate film 250 and a second-phase potential difference compensate film 270, this liquid crystal layer 240 is configured between this colored optical filtering substrates 220 and thin film transistor base plate 230, this liquid crystal layer 240 comprises electrical control birefringence mode liquid crystal, this colored optical filtering substrates 220 can be a upper substrate, and this thin film transistor base plate 230 can be an infrabasal plate.
With regard to Transflective formula, this colored optical filtering substrates 220 comprises transparency carrier 222 and a transparent common electrode 224, this transparent common electrode 224 is configured between this transparency carrier 222 and this liquid crystal layer 240, this thin film transistor base plate 230 comprises a transparency carrier 232 and plurality of pixel electrodes 234, those pixel electrodes 234 are configured between this transparency carrier 232 and this liquid crystal layer 240, each pixel electrode 234 definable one pixel (pixel; P), and comprise an a transparency electrode 234a and reflecting electrode 234b, define penetrating region (T) and echo area (R) respectively; In other words, single pixel can be divided into two pixels (sub-pixel), be respectively penetrating region (T) and echo area (R), this backlight module 290 is configured at below this liquid crystal panel 210, in order to provide light source by the penetrating region (T) of this liquid crystal panel.
This first-phase potential difference compensate film 250 is configured at the surface 226 of this colored optical filtering substrates 220, and wherein this surface 226 is back in this liquid crystal layer 240, and this colored optical filtering substrates 220 is between this first-phase potential difference compensate film 250 and this liquid crystal layer 240; This second-phase potential difference compensate film 270 is configured at the surface 236 of this thin film transistor base plate 230, and wherein this surface 236 is back in this liquid crystal layer 240, and this thin film transistor base plate 230 is between this second-phase potential difference compensate film 270 and this liquid crystal layer 240.
One first Polarizer (polarizer) 260 is configured at the surface 252 of this first-phase potential difference compensate film 250, wherein this surface 252 is back in this colored optical filtering substrates 220, and this first-phase potential difference compensate film 250 is between the first Polarizer 260 and this colored optical filtering substrates 220; One second Polarizer (polarizer) 280 is configured at the surface 272 of this second-phase potential difference compensate film 270, wherein this surface 272 is back in this thin film transistor base plate 230, and this second-phase potential difference compensate film 270 is between the second Polarizer 280 and this thin film transistor base plate 230; In addition, this second Polarizer 280 conveniently in this penetrating region (T) and the manufacture of this second-phase potential difference compensate film 270, this second Polarizer 280 and this second-phase potential difference compensate film 270 also may extend in this echo area (R).
It should be noted, between this first Polarizer 260 and this colored optical filtering substrates 220, be only plugged with this first-phase potential difference compensate film 250; And between this second Polarizer 280 and this thin film transistor base plate 230, be only plugged with this second-phase potential difference compensate film 270.
Please refer to Fig. 5, in the present embodiment, thickness be the phase difference compensation film of d face in the formula of phase-delay value Re and thickness direction phase-delay value Rth as follows:
Re=(n
x–n
y)×d
Rth=[(n
x+n
y)/2–n
z]×d
Wherein: " n
x" for the refractive index in face be the refractive index in maximum direction (that is, slow axis (slowaxis) direction), " n
y" be refractive index with slow axis vertical direction (that is, fast axle (fastaxis) direction) in face, " n
z" be the refractive index of thickness direction.
Suppose that visible wavelength is between 380nm and 760nm, in the face of then this first and second phase difference compensation film 250,270, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm, preferably, this first and second phase difference compensation film 250,270 can be 1/2nd ripple plates.
Please refer to Fig. 6, the part isometric schematic diagram of the Transflective formula liquid crystal indicator 200 of the electrical control birefringence mode of its display first embodiment of the invention, and definition there is an XYZ coordinate axle.
With regard to this penetrating region (T), there are this second Polarizer 280, this second-phase potential difference compensate film 270, this liquid crystal layer 240, this first-phase potential difference compensate film 250 and this first Polarizer 260 along Z axis positive dirction sequential, 60 degree are accompanied between the absorption axle 284 of this second Polarizer 280 and X-axis, the slow axis (slowaxis) of this second-phase potential difference compensate film 270 accompanies 130 degree between 286 and X-axis, 90 degree are accompanied between the lower alignment direction 244 of this liquid crystal layer 240 and X-axis, accompany between the upper alignment direction 242 of this liquid crystal layer 240 and X-axis 270 degree (that is, the upper alignment direction 242 of this liquid crystal layer 240 is contrary and parallel with lower alignment direction 244), the slow axis (slowaxis) of this first-phase potential difference compensate film 250 accompany between 266 and X-axis 130 degree (that is, this first-phase potential difference compensate film 250 and this second-phase potential difference compensate film 270 be configured in parallel with equidirectional), and accompany 60 degree between the absorption axle 264 of this first Polarizer 260 and X-axis.
With regard to this echo area (R), this reflecting electrode 234b is had along Z axis positive dirction sequential, this liquid crystal layer 240, this first-phase potential difference compensate film 250 and this first Polarizer 260, similarly, 90 degree are accompanied between the lower alignment direction 244 of this liquid crystal layer 240 and X-axis, accompany between the upper alignment direction 242 of this liquid crystal layer 240 and X-axis 270 degree (that is, the upper alignment direction 242 of this liquid crystal layer 240 is contrary and parallel with lower alignment direction 244), the slow axis (slowaxis) of this first-phase potential difference compensate film 250 accompanies 130 degree between 266 and X-axis, and accompany 60 degree between the absorption axle 264 of this first Polarizer 260 and X-axis.
Refer again to Fig. 4, this colored optical filtering substrates 220 in this echo area (R) (that is this reflecting electrode position) is one first clearance D 1 with the gap of thin film transistor base plate 230, this colored optical filtering substrates 220 in this penetrating region (T) (that is this transparency electrode position) is one second clearance D 2 with the gap of thin film transistor base plate 230, preferably, can by analog computation, first suppose the ratio data relation of this second clearance D 2 and this first clearance D 1, calculate the curve of the voltage of this penetrating region (T) and penetrance and the voltage of this echo area (R) and the curve of reflectivity and must match (match), the anti-proportionate relationship knowing this second clearance D 2 and this first clearance D 1 by inference again, such as in the present embodiment, this the second clearance D 2 can be the twice of this first clearance D 1.
Please refer to Fig. 7, applying voltage (appliedvoltage) and the penetrance (Transmittance) of its display penetrating region (T) and the applying voltage (appliedvoltage) of echo area (R) and the curve map of reflectivity (Reflectance), because the applying voltage of this penetrating region (T) and the curve of penetrance match (match) with the applying voltage of this echo area (R) and the curve of reflectivity, therefore this penetrating region (T) and this echo area (R) need not driven by two thin film transistor (TFT)s respectively, and only need single thin film transistor (TFT) to drive, and then can reduce costs.
Please refer to Fig. 8, its display the present embodiment has the penetrating region (T-mode) of this first and second phase difference compensation film and the visual angle figure of echo area (R-mode), it is presented at liquid crystal panel condition, and (the first clearance D 1 of penetrating region is 3.8 μm, second clearance D 2 of echo area is 1.9 μm, the tilt angle of liquid crystal is 4 degree, in the face of first and second phase difference compensation film 250,270, phase-delay value Re is all 270nm, and thickness direction phase-delay value Rth is all 135nm) under analog result; Please refer to Fig. 9, its display does not have the penetrating region (T) of phase difference compensation film and the visual angle figure of echo area (R); Really show visual angle of the present invention compared to Fig. 9, Fig. 8 to increase.
Because liquid crystal panel of the present invention only needs the most simple compensation framework of this first and second phase difference compensation film, can reach the optical appearance of required wide viewing angle, compared to compensation framework of the prior art, manufacturing cost of the present invention is lower.
Please refer to Figure 10, the electric field controls birefringence (electricalcontrolbirefringence of its display second embodiment of the invention; ECB) the reflection pattern liquid crystal indicator 300 of pattern, this reflection pattern liquid crystal indicator 300 comprises a liquid crystal panel 310, and this liquid crystal panel 310 comprises colored optical filtering substrates 320, thin film transistor base plate 330, liquid crystal layer 340 and a phase difference compensation film 350.
With regard to reflection pattern, single pixel (pixel, P) only have echo area (R), that is each pixel electrode 334 only comprises a reflecting electrode 334b, define an echo area (R), element (such as reflecting electrode 334b in the echo area (R) of this reflection pattern liquid crystal indicator 300, liquid crystal layer 340, phase difference compensation film 350 and Polarizer 360) configure the arrangements of components be similar to substantially in the echo area (R) of this Transflective formula liquid crystal indicator 200, similar element marking like numerals will, element (such as reflecting electrode 334b in the echo area (R) of this reflection pattern liquid crystal indicator 300, liquid crystal layer 340, phase difference compensation film 350 and Polarizer 360) function and overall efficacy be similar to element function in the echo area (R) of this Transflective formula liquid crystal indicator 200 and overall efficacy substantially, identical explanation needless to say.
Please refer to Figure 11, the electric field controls birefringence (electricalcontrolbirefringence of its display third embodiment of the invention; ECB) pattern penetrate pattern liquid crystal indicator 400, this penetrates pattern liquid crystal indicator 400 and comprises liquid crystal panel 410 and a backlight module 490, and this liquid crystal panel 410 comprises colored optical filtering substrates 420, thin film transistor base plate 430, liquid crystal layer 440, first-phase potential difference compensate film 450 and a second-phase potential difference compensate film 470.
Just penetrate with regard to pattern, single pixel (pixel, P) penetrating region (T) is only had, that is each pixel electrode 434 only comprises a transparency electrode 434a, define a penetrating region (T), this penetrates element (such as the second Polarizer 480 in the penetrating region (T) of pattern liquid crystal indicator 400, second-phase potential difference compensate film 470, liquid crystal layer 440, first-phase potential difference compensate film 450 and the first Polarizer 460) configure the arrangements of components be similar to substantially in the penetrating region (T) of this Transflective formula liquid crystal indicator 200, the identical label of similar element marking, moreover, this penetrates element (such as the second Polarizer 480 in the penetrating region (T) of pattern liquid crystal indicator 400, second-phase potential difference compensate film 470, liquid crystal layer 440, first-phase potential difference compensate film 450 and the first Polarizer 460) function and overall efficacy be similar to element function in the penetrating region (T) of this Transflective formula liquid crystal indicator 200 and overall efficacy substantially, identical explanation needless to say.
In sum, being only embodiment or the embodiment of notebook invention for presenting adopted technological means of dealing with problems, being not used for limiting the scope of patent working of the present invention.Namely all and of the present invention patent claim contexts conform to, or change according to the equalization that the scope of the claims of the present invention does and modify, and are all the scope of the claims of the present invention and contain.
Claims (13)
1. an electric field controls birefringence (electricalcontrolbirefringence; ECB) liquid crystal panel of pattern, is characterized in that, comprises:
One colored optical filtering substrates and a thin film transistor base plate, wherein this colored optical filtering substrates is a upper substrate, and this thin film transistor base plate is an infrabasal plate;
One liquid crystal layer, be configured between this colored optical filtering substrates and this thin film transistor base plate, wherein this liquid crystal layer comprises electrical control birefringence mode liquid crystal, and the upper alignment direction of this liquid crystal layer is contrary and parallel with the lower alignment direction of this liquid crystal layer;
One first-phase potential difference compensate film, wherein this colored optical filtering substrates is between this first-phase potential difference compensate film and this liquid crystal layer, and in the face of this first-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One first Polarizer, wherein this first-phase potential difference compensate film is between this first Polarizer and this colored optical filtering substrates, and is only plugged with this first-phase potential difference compensate film between this first Polarizer and this colored optical filtering substrates.
2. the liquid crystal panel of electrical control birefringence mode as claimed in claim 1, it is characterized in that, this first-phase potential difference compensate film is 1/2nd ripple plates.
3. the liquid crystal panel of electrical control birefringence mode as claimed in claim 1, is characterized in that,
This colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and described plurality of pixel electrodes is configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode only comprises a reflecting electrode.
4. the liquid crystal panel of electrical control birefringence mode as claimed in claim 1, it is characterized in that, 90 degree are accompanied between the lower alignment direction of this liquid crystal layer and X-axis, 270 degree are accompanied between the upper alignment direction of this liquid crystal layer and X-axis, accompany 130 degree between the slow axis of this first-phase potential difference compensate film and X-axis, and accompany 60 degree between the absorption axle of this first Polarizer and X-axis.
5. the liquid crystal panel of electrical control birefringence mode as claimed in claim 1, is characterized in that, also include:
One second-phase potential difference compensate film, wherein this thin film transistor base plate is between this second-phase potential difference compensate film and this liquid crystal layer, and in the face of this second-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One second Polarizer, wherein this second-phase potential difference compensate film is between the second Polarizer and this thin film transistor base plate, and is only plugged with this second-phase potential difference compensate film between this second Polarizer and this thin film transistor base plate.
6. the liquid crystal panel of electrical control birefringence mode as claimed in claim 5, it is characterized in that, this second-phase potential difference compensate film is 1/2nd ripple plates.
7. the liquid crystal panel of electrical control birefringence mode as claimed in claim 5, is characterized in that,
This colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and described plurality of pixel electrodes is configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode only comprises a transparency electrode.
8. the liquid crystal panel of electrical control birefringence mode as claimed in claim 5, is characterized in that,
This colored optical filtering substrates comprises one first transparency carrier and a transparent common electrode, and this transparent common electrode is configured between this first transparency carrier and this liquid crystal layer; And
This thin film transistor base plate comprises one second transparency carrier and plurality of pixel electrodes, and described plurality of pixel electrodes is configured between this second transparency carrier and this liquid crystal layer, and each pixel electrode comprises a reflecting electrode and a transparency electrode.
9. the liquid crystal panel of electrical control birefringence mode as claimed in claim 8, it is characterized in that, be one first gap at this colored optical filtering substrates of this reflecting electrode position and the gap of this thin film transistor base plate, be one second gap at this colored optical filtering substrates of this transparency electrode position and the gap of thin film transistor base plate, this second gap is substantially the twice in this first gap.
10. the liquid crystal panel of electrical control birefringence mode as claimed in claim 9, it is characterized in that, the penetrating region of single pixel and echo area only need single thin film transistor (TFT) to drive.
The liquid crystal panel of 11. electrical control birefringence mode as claimed in claim 5, it is characterized in that, definition has an XYZ coordinate axle, 60 degree are accompanied between the absorption axle of this second Polarizer and X-axis, 130 degree are accompanied between the slow axis of this second-phase potential difference compensate film 270 and X-axis, 90 degree are accompanied between the lower alignment direction of this liquid crystal layer and X-axis, 270 degree are accompanied between the upper alignment direction of this liquid crystal layer 240 and X-axis, accompany 130 degree between the slow axis of this first-phase potential difference compensate film 250 and X-axis, and accompany 60 degree between the absorption axle of this first Polarizer and X-axis.
12. 1 kinds of electric field controls birefringence (electricalcontrolbirefringence; ECB) liquid crystal indicator of pattern, comprises a liquid crystal panel, it is characterized in that, this liquid crystal panel comprises:
One colored optical filtering substrates and a thin film transistor base plate, wherein this colored optical filtering substrates is a upper substrate, and this thin film transistor base plate is an infrabasal plate;
One liquid crystal layer, be configured between this colored optical filtering substrates and thin film transistor base plate, wherein this liquid crystal layer comprises the liquid crystal of electrical control birefringence mode, and the upper alignment direction of this liquid crystal layer is contrary and parallel with the lower alignment direction of this liquid crystal layer; And
One first-phase potential difference compensate film, be configured at the first surface of this colored optical filtering substrates, wherein this colored optical filtering substrates is between this first-phase potential difference compensate film and this liquid crystal layer, and in the face of this first-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm;
One first Polarizer, wherein this first-phase potential difference compensate film is between the first Polarizer and this colored optical filtering substrates, and is only plugged with this first-phase potential difference compensate film between this first Polarizer and this colored optical filtering substrates;
And a backlight module, be configured at below this liquid crystal panel.
The liquid crystal indicator of 13. electrical control birefringence mode as claimed in claim 12, it is characterized in that, this liquid crystal panel separately comprises:
One second-phase potential difference compensate film, wherein this thin film transistor base plate is between this second-phase potential difference compensate film and this liquid crystal layer, and in the face of this second-phase potential difference compensate film, phase-delay value Re must between 190nm and 380nm, and thickness direction phase-delay value Rth must between 95nm and 190nm; And
One second Polarizer, wherein this second-phase potential difference compensate film is between the second Polarizer and this thin film transistor base plate, and is only plugged with this second-phase potential difference compensate film between this second Polarizer and this thin film transistor base plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101101708 | 2012-01-17 | ||
| TW101101708A TWI493260B (en) | 2012-01-17 | 2012-01-17 | Electrical control birefringence type liquid crystal panel and liquid crystal display |
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| CN103207478A CN103207478A (en) | 2013-07-17 |
| CN103207478B true CN103207478B (en) | 2016-02-10 |
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| CN203930105U (en) * | 2014-06-26 | 2014-11-05 | 京东方科技集团股份有限公司 | Flexible membrane, organic LED display panel and display device |
| US9761642B2 (en) | 2015-05-22 | 2017-09-12 | Microsoft Technology Licensing, Llc | Transflective OLED display |
| CN114839815A (en) * | 2021-02-01 | 2022-08-02 | 中强光电股份有限公司 | Display device |
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| WO2006033463A1 (en) * | 2004-09-22 | 2006-03-30 | Fujifilm Corporation | Liquid crystal display device |
| CN1768295A (en) * | 2003-11-21 | 2006-05-03 | Lg化学株式会社 | In-plane switching liquid crystal display comprising compensation film for angular field of view using positive biaxial retardation film |
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| TWI340846B (en) * | 2006-08-04 | 2011-04-21 | Au Optronics Corp | Pixel structure of a transflective liquid crystal panel having a single gap |
| KR20080037801A (en) * | 2006-10-27 | 2008-05-02 | 삼성전자주식회사 | Transflective liquid crystal display and method for manufacturing the same |
| CN102422206A (en) * | 2009-03-09 | 2012-04-18 | 奇像素公司 | Normally black transflective liquid crystal displays |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768295A (en) * | 2003-11-21 | 2006-05-03 | Lg化学株式会社 | In-plane switching liquid crystal display comprising compensation film for angular field of view using positive biaxial retardation film |
| WO2006033463A1 (en) * | 2004-09-22 | 2006-03-30 | Fujifilm Corporation | Liquid crystal display device |
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| TWI493260B (en) | 2015-07-21 |
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