CN103105691A - Color vertical arrangement type liquid crystal display (LCD) - Google Patents
Color vertical arrangement type liquid crystal display (LCD) Download PDFInfo
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- CN103105691A CN103105691A CN2013100365538A CN201310036553A CN103105691A CN 103105691 A CN103105691 A CN 103105691A CN 2013100365538 A CN2013100365538 A CN 2013100365538A CN 201310036553 A CN201310036553 A CN 201310036553A CN 103105691 A CN103105691 A CN 103105691A
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Abstract
The invention relates to a color vertical arrangement type liquid crystal display (LCD) which comprises a main control plate and an LCD body. The LCD body is sequentially composed of an upper polarizing plate, an upper phase difference plate, an upper glass substrate, an upper indium tin oxide (ITO) conducting glass layer, an upper polyimide (PI) alignment layer, a frame rubber layer, a middle space layer, a lower PI alignment layer, a lower ITO conducting glass layer, a lower glass substrate and a lower polarizing plate. A vertical orientation technology with the box thickness of 2-3 micrometers is used, a liquid crystal twist angle is 90-180 degrees, liquid crystal viscosity coefficient is lowered to below 25 (mm<2>*s<-1>), driving Vop is improved to an integrated circuit (IC) maximum design value (Vop-0.3)V, and therefore under the driving of high voltage, liquid crystal has the maximum response ability, and a novel field switching LCD with high contrast, wide contrast and high-purity color is provided.
Description
Technical field
The invention belongs to technical field of liquid crystal display, in particular a kind of colored vertical alignment liquid crystal display.
Background technology
Colour shows that the application in market is more and more extensive at present, negative aobvious colored display requirement to the height contrast is more and more higher, existing TFT technology or not only die sinking expense of CSTN display technique are higher, and cost is also higher, adopt usually TN type field switching to show negative aobvious technology, back of the body look more blue, easily causes when colour mixture color is disturbed, and causes colour mixture generation deviation.Although and general vertical orientated technology good contrast, the visual angle is good, the response time is slower, more difficultly realizes that color shows.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
The present invention utilizes optics phasic difference phase shift films compensation technique simultaneously by vertical orientated technology, keeping high-contrast, on the performance basis at wide visual angle, promote the response time, enable to obtain negative aobvious demonstration that 8 colours are switched in a kind of field of wide visual angle under the fast frequency of the frame frequency of 180HZ.With the solution high-contrast, wide visual angle, the demonstration purpose of high-purity colour provides a kind of colored vertical alignment liquid crystal display.
Technical scheme of the present invention is as follows:
A kind of colored vertical alignment liquid crystal display comprises master control board and LCD body, wherein, described LCD body is successively by upper Polarizer, upper phase difference plate, top glass substrate, upper ITO conductive glass layer, upper PI orientation rete, the frame glue-line, intermediate space layer, lower PI orientation rete, lower ITO conductive glass layer, lower glass substrate and lower Polarizer form.
Described colored vertical alignment liquid crystal display, wherein, the vertical orientated liquid crystal of the low viscous negativity of perfusion in liquid crystal cell; Described liquid crystal viscosity coefficient is 15-25 (mm2s-1).
Described colored vertical alignment liquid crystal display, wherein, the thickness of described liquid crystal cell is set to 2-2.5um.
Described colored vertical alignment liquid crystal display, wherein, in described liquid crystal cell, the distortion angle of liquid crystal is the 90-180 degree.
Described colored vertical alignment liquid crystal display, wherein, described PI orientation rete is vertical vertical PI alignment films.
Described colored vertical alignment liquid crystal display wherein, also arranges an optics phasic difference phase shift films on described upper phase difference plate.
Described colored vertical alignment liquid crystal display, wherein, described optics phasic difference phase shift films optical path difference scope is 220-600 nm.
Described colored vertical alignment liquid crystal display, wherein, described master control board differs the angle of phase shift films and light polarizing film to control negative aobvious demonstration of black background look by control bit.
Described colored vertical alignment liquid crystal display, wherein, the frame frequency of high scanning is adopted in described master control board, in conjunction with the independent R that controls, G, B is backlight, as IC to R, G, when B carries out high frame frequency scanning, the corresponding pixel of LCD is carried out selective switch according to the open/close state of driving electric signal of IC, and is controlled in the frequency of 60HZ-70HZ and carries out colour mixture; The frame frequency of described high scanning is 180-210HZ; Control simultaneously liquid crystal response.
Described colored vertical alignment liquid crystal display, wherein, the described liquid crystal response time is:
T
risc=η
1d
2/(ε
oΔεV
2)
T
decay=η
1d
2/Kπ
2
In above-mentioned, wherein: the Trise:LCD rise time, Tdelay:LCD fall time, η 1: the coefficient of viscosity of liquid crystal; K: liquid crystal elasticity coefficient; The impressed voltage of V:LCD; The box of d:LCD is thick; ε.: the liquid crystal specific inductive capacity; ε=ε ∥-ε ⊥: the anisotropy specific inductive capacity of liquid crystal; ε ∥: liquid crystal parallel direction specific inductive capacity; ε ⊥: liquid crystal vertical direction specific inductive capacity; In above-mentioned, the responding ability of liquid crystal and LCD box thick (d) square are directly proportional, be directly proportional to liquid crystal viscosity coefficient η 1, simultaneously during the making alive of liquid crystal response time Trise also be added in square being inversely proportional to of voltage (V) on LCD.
Adopt such scheme, be the vertical orientated technology of 2-3um by adopting box thick, the liquid crystal distortion angle is: the 90-180 degree, be reduced in below 25 (mm2s-1) by reducing the liquid crystal viscosity coefficient, and will drive Vop and bring up to IC design maximum value (Vop-0.3) V, and to guarantee under high-tension driving liquid crystal, maximum responding ability be arranged, thereby solved high-contrast, wide contrast, the New Type Field switching liquid crystal display of high-purity colour.
Description of drawings
Fig. 1 is the structural representation of LCD body in liquid crystal display of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, in the present invention, the LCD structure comprises Polarizer 10, upper phase difference plate 20, top glass substrate 30, upper ITO layer 40, upper PI oriented layer 50, frame glue-line 60, middle spacer 70, lower PI oriented layer 80, lower ITO layer 90, lower glass substrate 100, lower Polarizer 110.The LCD box is thick to be controlled to be: 2-2.5um, liquid crystal twist angle are the 90-180 degree.。
In the middle of adopting in the present invention, Spacer 70 boxes are thick designs for 2-2.5um, the liquid crystal twist angle is the 90-180 degree, select vertical orientated PI material, the vertical orientated liquid crystal of the low viscous negativity of perfusion in liquid crystal cell, make it have capability of fast response, select the optics phasic difference phase shift films of 220-600 nm by the optical path difference in the optical design of calculating, obtain negative aobvious demonstration of the background colour of black by the angle of light polarizing film.We adopt the frame frequency (180-210HZ) of high scanning simultaneously, in conjunction with the independent R that controls, G, B is backlight, as IC to R, when G, B carry out the scanning of high frame frequency, the corresponding semment pixel of LCD is carried out open/close state according to the driving electric signal of IC and is carried out selective switch, thereby carries out colour mixture in the frequency of 60HZ-70HZ.Thereby realize high contrast, 8 colored demonstrations of the quick response of high color.
In order to obtain capability of fast response, according to liquid crystal response time formula:
T
risc=η
1d
2/(ε
oΔεV
2)
T
decay=η
1d
2/Kπ
2
In above-mentioned, wherein: the Trise:LCD rise time, Tdelay:LCD fall time, η 1: the coefficient of viscosity of liquid crystal; K: liquid crystal elasticity coefficient; The impressed voltage of V:LCD; The box of d:LCD is thick; ε.: the liquid crystal specific inductive capacity; ε=ε ∥-ε ⊥: the anisotropy specific inductive capacity of liquid crystal; ε ∥: liquid crystal parallel direction specific inductive capacity; ε ⊥: liquid crystal vertical direction specific inductive capacity; And the responding ability that can find out liquid crystal and LCD box thick (d) square are directly proportional, and are directly proportional to liquid crystal viscosity coefficient η 1, simultaneously during the making alive of liquid crystal response time Trise also be added in square being inversely proportional to of voltage (V) on LCD.
With the thick 2-2.5um that is designed to of LCD box, the liquid crystal material of middle temperature newly developed by changing liquid crystal composition, reduces the liquid crystal viscosity coefficient, makes the viscosity coefficient of liquid crystal at 15-25 (mm2s-1).Drive simultaneously Vop and bring up to IC design maximum value (Vop-0.3) V in driving, to guarantee that liquid crystal has maximum responding ability under high-tension driving, so just can obtain in negative aobvious high-contrast, the liquid crystal display of 8 colours at wide visual angle.
Every is the vertical orientated technology of 2-3um by adopting box thick, and adopts the liquid crystal twist angle to be: the 90-180 degree, be reduced in below 25 (mm2s-1) by reducing the liquid crystal viscosity coefficient, and realize that the display technique of 8 colours all belongs to scope of the present invention.
Embodiment 2
On the basis of above-described embodiment, as shown in Figure 1, a kind of colored vertical alignment liquid crystal display, comprise master control board and LCD body, wherein, described LCD body is successively by upper Polarizer 10, upper phase difference plate 20, top glass substrate 30, upper ITO conductive glass layer 40, upper PI orientation rete 50, frame glue-line 60, intermediate space layer 70, lower PI orientation rete 80, lower ITO conductive glass layer 90, lower glass substrate 100 and lower polarisation 110 plates form.
On the basis of above-described embodiment, wherein, the vertical orientated liquid crystal of the low viscous negativity of perfusion in liquid crystal cell; Described liquid crystal viscosity coefficient is 15-25 (mm2s-1).
On the basis of above-described embodiment, wherein, the thickness of described liquid crystal cell is set to 2-2.5um.
On the basis of above-described embodiment, wherein, in described liquid crystal cell, the distortion angle of liquid crystal is the 90-180 degree.
On the basis of above-described embodiment, wherein, described PI orientation rete is vertical vertical PI alignment films.
On the basis of above-described embodiment, wherein, an optics phasic difference phase shift films is set also on described upper phase difference plate.
On the basis of above-described embodiment, wherein, described optics phasic difference phase shift films optical path difference scope is 220-600 nm.
On the basis of above-described embodiment, wherein, described master control board differs the angle of phase shift films and light polarizing film to control negative aobvious demonstration of black background look by control bit.
On the basis of above-described embodiment, wherein, the frame frequency of high scanning is adopted in described master control board, in conjunction with the independent R that controls, G, B is backlight, as IC to R, G, when B carries out high frame frequency scanning, the corresponding pixel of LCD is carried out selective switch according to the open/close state of driving electric signal of IC, and is controlled in the frequency of 60HZ-70HZ and carries out colour mixture; The frame frequency of described high scanning is 180-210HZ; Control simultaneously liquid crystal response.
Described colored vertical alignment liquid crystal display, wherein, the described liquid crystal response time is:
T
risc=η
1d
2/(ε
oΔεV
2)
T
decay=η
1d
2/Kπ
2
In above-mentioned, wherein: the Trise:LCD rise time, Tdelay:LCD fall time, η 1: the coefficient of viscosity of liquid crystal; K: liquid crystal elasticity coefficient; The impressed voltage of V:LCD; The box of d:LCD is thick; ε.: the liquid crystal specific inductive capacity; ε=ε ∥-ε ⊥: the anisotropy specific inductive capacity of liquid crystal; ε ∥: liquid crystal parallel direction specific inductive capacity; ε ⊥: liquid crystal vertical direction specific inductive capacity; In above-mentioned, the responding ability of liquid crystal and LCD box thick (d) square are directly proportional, be directly proportional to liquid crystal viscosity coefficient η 1, simultaneously during the making alive of liquid crystal response time Trise also be added in square being inversely proportional to of voltage (V) on LCD.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a colored vertical alignment liquid crystal display, comprise master control board and LCD body, it is characterized in that, described LCD body is successively by upper Polarizer, upper phase difference plate, top glass substrate, upper ITO conductive glass layer, upper PI orientation rete, the frame glue-line, intermediate space layer, lower PI orientation rete, lower ITO conductive glass layer, lower glass substrate and lower Polarizer form.
2. colored vertical alignment liquid crystal display as claimed in claim 1, is characterized in that, the vertical orientated liquid crystal of the low viscous negativity of perfusion in liquid crystal cell; Described liquid crystal viscosity coefficient is 15-25 (mm2s-1).
3. colored vertical alignment liquid crystal display as claimed in claim 2, is characterized in that, the thickness of described liquid crystal cell is set to 2-2.5um.
4. colored vertical alignment liquid crystal display as claimed in claim 3, is characterized in that, in described liquid crystal cell, the distortion angle of liquid crystal is the 90-180 degree.
5. colored vertical alignment liquid crystal display as claimed in claim 4, is characterized in that, described PI orientation rete is vertical vertical PI alignment films.
6. colored vertical alignment liquid crystal display as claimed in claim 5, is characterized in that, an optics phasic difference phase shift films also is set on described upper phase difference plate.
7. colored vertical alignment liquid crystal display as claimed in claim 6, is characterized in that, described optics phasic difference phase shift films optical path difference scope is 220-600 nm.
8. colored vertical alignment liquid crystal display as claimed in claim 7, is characterized in that, described master control board differs the angle of phase shift films and light polarizing film to control negative aobvious demonstration of black background look by control bit.
9. colored vertical alignment liquid crystal display as claimed in claim 8, it is characterized in that, the frame frequency of high scanning is adopted in described master control board, in conjunction with the independent R that controls, G, B is backlight, as IC to R, G, when B carries out high frame frequency scanning, the corresponding pixel of LCD is carried out selective switch according to the open/close state of driving electric signal of IC, and is controlled in the frequency of 60HZ-70HZ and carries out colour mixture; The frame frequency of described high scanning is 180-210HZ; Control simultaneously liquid crystal response.
10. colored vertical alignment liquid crystal display as claimed in claim 9, is characterized in that, the described liquid crystal response time is:
T
rise=η
1d
2/(ε
oΔεV
2)
T
decay=η
1d
2/Kπ
2
In above-mentioned, wherein: the Trise:LCD rise time, Tdelay:LCD fall time, η 1: the coefficient of viscosity of liquid crystal; K: liquid crystal elasticity coefficient; The impressed voltage of V:LCD; The box of d:LCD is thick; ε.: the liquid crystal specific inductive capacity; ε=ε ∥-ε ⊥: the anisotropy specific inductive capacity of liquid crystal; ε ∥: liquid crystal parallel direction specific inductive capacity; ε ⊥: liquid crystal vertical direction specific inductive capacity; In above-mentioned, the responding ability of liquid crystal and LCD box thick (d) square are directly proportional, be directly proportional to liquid crystal viscosity coefficient η 1, simultaneously during the making alive of liquid crystal response time Trise also be added in square being inversely proportional to of voltage (V) on LCD.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424932A (en) * | 2013-09-09 | 2013-12-04 | 南京华日液晶显示技术有限公司 | Field order control color liquid crystal display and manufacturing method thereof |
| CN105334654A (en) * | 2015-11-04 | 2016-02-17 | 重庆捷尔士显示技术有限公司 | VA liquid crystal display device and method |
| CN110246463A (en) * | 2019-05-31 | 2019-09-17 | 重庆捷尔士显示技术有限公司 | Colored segment encode liquid crystal display |
| CN114373432A (en) * | 2021-12-30 | 2022-04-19 | 长沙惠科光电有限公司 | Lateral-entering type liquid crystal display panel and control method thereof |
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| CN110246463A (en) * | 2019-05-31 | 2019-09-17 | 重庆捷尔士显示技术有限公司 | Colored segment encode liquid crystal display |
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Application publication date: 20130515 |