CN1971360A - LCD panel - Google Patents
LCD panel Download PDFInfo
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- CN1971360A CN1971360A CN 200510101769 CN200510101769A CN1971360A CN 1971360 A CN1971360 A CN 1971360A CN 200510101769 CN200510101769 CN 200510101769 CN 200510101769 A CN200510101769 A CN 200510101769A CN 1971360 A CN1971360 A CN 1971360A
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Abstract
The invention relates to a liquid crystal display panel which contains the first base plate, a second base plate which is corresponding with the first base plate, a liquid crystal layer located between the first base plate and the second base plate, a compensating film and a color filter. The color filter is located at the inner of the first base plate and includes several red filter units, several green filter units and several blue filter units. The compensating film includes several first compensating units which are corresponding with red filter units, green filter units and blue filter units, the second compensating units and the third compensating units. The first, second, third compensating unit possesses different refraction coefficients and can correspondingly compensate the phase differences generated by red light; green light and blue light pass the liquid crystal layer. The liquid crystal display panel possesses higher contrast.
Description
[technical field]
The present invention relates to a kind of display panels.
[background technology]
Therefore characteristics such as that LCD has is frivolous, low power consumption and radiation are few are widely used in fields such as notebook computer, mobile phone and portable computer.Usually, LCD mainly comprises display panels and module backlight.
Please refer to Fig. 1, is a kind of structural representation of prior art display panels.This display panels 10 comprises one first substrate 100, one second substrate 110 and a liquid crystal layer 120.This first substrate 100 is oppositely arranged with this second substrate 110, and this liquid crystal layer 120 is between this first substrate 100 and this second substrate 110.
This first substrate 100 comprises one first polaroid 102, one first substrate 101, a colored filter 103, one a black matrix 106 and a common electrode layer 104.This colored filter 103 is positioned at the inner surface of this first substrate 101, and it comprises a plurality of red filter units (R) 1031, a plurality of green filter unit (G) 1032 and a plurality of blue filter unit (B) 1033.This redness filter unit 1031, green filter unit 1032 and blue filter unit 1033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 106 at interval.This common electrode layer 104 is formed at this colored filter 103 and should deceives on the matrix 106.This first polaroid 102 is positioned at the outer surface of this first substrate 101.
This second substrate 110 comprises one second substrate 111, one second polaroid 112 and a plurality of pixel electrode 113.This pixel electrode 113 is arranged on the inner surface of this second substrate 111.This second polaroid 112 is positioned at the outer surface of this second substrate 111.
Employed liquid crystal molecule is TN (Twisted Nematic in the liquid crystal layer 120 of this display panels 10, twisted nematic) type liquid crystal molecule, when the non-fully upright liquid crystal molecule of light penetration,, can produce birefringence owing to have certain angle with the optical axis of liquid crystal molecule.The birefringence effect of liquid crystal molecule changes with the change of optics incident angle, and when different angles were watched this display panels 10, contrast can be different, can't meet the requirement of wide viewing angle.For solving above-mentioned visual angle defective, the people in the industry expects a kind of method at first, promptly on polaroid in the multi-layer coated mode of macromolecular material, make optical compensating film, be the alleged view film of industry.
Please refer to Fig. 2, is the structural representation that a kind of prior art has the display panels of view film.This display panels 20 comprises one first substrate, 200, one second substrates 210 and a liquid crystal layer 220.This first substrate 200 is oppositely arranged with this second substrate 210, and this liquid crystal layer 220 is between this first substrate 200 and this second substrate 210.
This first substrate 200 comprises one first polaroid 202, one first compensate film 205, one first substrate 201, a colored filter 203, one a black matrix 206 and a common electrode layer 204.This colored filter 203 is positioned at the inner surface of this first substrate 201, and it comprises a plurality of red filter units (R) 2031, a plurality of green filter unit (G) 2032 and a plurality of blue filter unit (B) 2033.This redness filter unit 2031, green filter unit 2032 and blue filter unit 2033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 206 at interval.This common electrode layer 204 is formed at this colored filter 203 and should deceives on the matrix 206.This first compensate film 205 is arranged on the outer surface of this first substrate 201.This first polaroid 202 is positioned at the outer surface of this first compensate film 205.
This second substrate 210 comprises one second substrate 211, one second polaroid 212, one second compensate film 214 and a plurality of pixel electrode 213.This pixel electrode 213 is arranged on the inner surface of this second substrate 211.This second compensate film 214 is arranged on the outer surface of this second substrate 211.This second polaroid 212 is positioned at the outer surface of this second compensate film 214.
This compensate film 205,214 is mainly negative uniaxial compensation film (uniaxial negativecompensation film).Negative uniaxial compensation film is to be made of materials such as polymerization disc-like liquid crystal molecules.Polymerization disc-like liquid crystal molecule has negative mono-axial refractive index ellipsoid, and its birefringence effect depends on the optics incident angle.Liquid crystal molecule in this liquid crystal layer 220 is a TN type liquid crystal molecule.This TN type liquid crystal molecule has positive single shaft index ellipsoid, and its birefringence effect also changes along with the change of optics incident angle, but its change direction is opposite with the polymerization disc-like liquid crystal.The different incidence angles degree was to birefringent influence when therefore, compensate film 205,214 and substrate 201,211 applyings can reduce light by liquid crystal layer 220.
This compensate film 205,214 is respectively multi-layer coated and form with polymerization disc-like liquid crystal molecular material between corresponding polaroid and substrate of glass.When selecting the compensate film refractive index, be that the phase differential that causes during by liquid crystal layer 220 by the light oblique incidence time is determined.This phase differential is to obtain by expression formula " δ (θ, λ)=2 π d Δ n/ λ " is approximate, and wherein, " δ " represent phase differential, and " Δ n " represents liquid crystalline refractive index, and " d " represents liquid crystal layer 220 thickness, and " λ " represents light wavelength.Usually λ selects 550nm, i.e. the predominant wavelength of green light, and this moment, the expression formula by above-mentioned phase differential can obtain a compensate film that is suitable for the green glow phase differential.Yet, because it is different with the phase differential and the green glow of blue light to see through the ruddiness of liquid crystal layer 220, phase differential that produces when so this compensate film 205,214 can not well compensate ruddiness and blue light by liquid crystal layer 220, thereby make the polarization direction of ruddiness and blue light not cause light leak fully perpendicular to the polarization direction of polaroid.Simultaneously, the phase delay that produces when this compensate film 205,214 can not well compensate ruddiness and blue light by liquid crystal layer 220, thus cause chromatic dispersion.
[summary of the invention]
In order to solve the problem of display panels light leak of the prior art and chromatic dispersion, be necessary to provide a kind of display panels that overcomes light leak and chromatic dispersion problem.
A kind of display panels, it comprises one first substrate, one and liquid crystal layer, a compensate film and the colored filter of second substrate, between this first substrate and this second substrate that be oppositely arranged of this first substrate.This colored filter is positioned at close liquid crystal layer one side of this first substrate, and it comprises a plurality of red filter units, a plurality of green filter unit and a plurality of blue filter unit.This compensate film comprises first compensating unit, second compensating unit and the 3rd compensating unit with a plurality of different refraction coefficients.This first compensating unit is provided with corresponding to this redness filter unit, the phase differential that produces in the time of can compensating ruddiness by this liquid crystal layer.This second compensating unit is provided with corresponding to this green filter unit, the phase differential that produces in the time of can compensating green glow by this liquid crystal layer.The phase differential that the 3rd compensating unit produces in the time of can compensating blue light by this liquid crystal layer corresponding to this blueness filter unit setting.
Compared to prior art, the compensate film of above-mentioned display panels comprises a plurality of first compensating units, a plurality of second compensating unit and a plurality of the 3rd compensating unit.The refraction coefficient of this first compensating unit, second compensating unit and the 3rd compensating unit can be determined according to the predominant wavelength of red, green, blue coloured light respectively.Therefore, the phase differential of red, green, blue coloured light can both obtain suitable compensation, and respective phase postpones also can obtain suitable compensation, thereby can overcome light leak and chromatic dispersion problem, improves contrast.
[description of drawings]
Fig. 1 is a kind of structural representation of prior art display panels.
Fig. 2 is the structural representation that a kind of prior art has the display panels of view film.
Fig. 3 is the structural representation of display panels first embodiment of the present invention.
Fig. 4 is the structural representation of display panels second embodiment of the present invention.
Fig. 5 is the structural representation of display panels the 3rd embodiment of the present invention.
Fig. 6 is the structural representation of display panels the 4th embodiment of the present invention.
[embodiment]
Please refer to Fig. 3, is the structural representation of display panels first embodiment of the present invention.This display panels 30 comprises one first substrate 300, one second substrate 310 and a liquid crystal layer 320.This first substrate 300 is oppositely arranged with this second substrate 310, and this liquid crystal layer 320 is between this first substrate 300 and this second substrate 310.
This first substrate 300 comprises one first polaroid 302, one first substrate 301, a colored filter 303, one black matrix 306, a compensate film 305 and a common electrode layer 304.This colored filter 303 is positioned at the inner surface of this first substrate 301, and it comprises a plurality of red filter units (R) 3031, a plurality of green filter unit (G) 3032 and a plurality of blue filter unit (B) 3033.This redness filter unit 3031, green filter unit 3032 and blue filter unit 3033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 306 at interval.This compensate film 305 comprises a plurality of first compensating units 3051, a plurality of second compensating units 3052 and a plurality of the 3rd compensating unit 3053.This first compensating unit 3051 is arranged on this redness filter unit 3031 and the adjacent black matrix 306, this second compensating unit 3052 is arranged on this green filter unit 3032 and the adjacent black matrix 306, and the 3rd compensating unit 3053 is arranged on this blueness filter unit 3033 and the adjacent black matrix 306.This common electrode layer 304 is formed on this compensate film 305.This first polaroid 302 is positioned at the outer surface of this first substrate 301.
This second substrate 310 comprises one second substrate 311, one second polaroid 312 and a plurality of pixel electrode 313.This pixel electrode 313 is arranged on the inner surface of this second substrate 311.This second polaroid 312 is positioned at the outer surface of this second substrate 311.
This compensate film 305 can be negative uniaxial compensation film.The thickness of this first compensating unit 3031, second compensating unit 3032 and the 3rd compensating unit 3033 can be different.The material of this common electrode layer 304 and this pixel electrode 313 can be indium zinc oxide (IndiumZinc Oxide, IZO) or tin indium oxide (Indium Tin Oxide, ITO).This first substrate 301 and second substrate 311 can be glass substrate or silicon dioxide substrate.
Light can cause phase differential during by liquid crystal layer 320, expresses formula " δ (θ, λ)=2 π d Δ n/ λ " by the phase differential of light and determines different predominant wavelength λ
R, λ
G, λ
BThe out of phase difference δ that on offset angle, causes of red, green, blue coloured light
R(θ, λ)=2 π d Δ n/ λ
R, δ
G(θ, λ)=2 π d Δ n/ λ
GAnd δ
B(θ, λ)=2 π d Δ n/ λ
B, to select to distinguish the parameters such as refractive index, thickness of corresponding first compensating unit 3031, second compensating unit 3032 and the 3rd compensating unit 3033 with the predominant wavelength of red, green, blue coloured light.Thereby the phase differential of red, green, blue coloured light all can obtain suitable compensation, and respective phase postpones also can obtain suitable compensation, and then can overcome light leak and chromatic dispersion problem, improves picture contrast.
Please refer to Fig. 4, is the structural representation of display panels second embodiment of the present invention.This display panels 40 comprises one first substrate 400, one second substrate 410 and a liquid crystal layer 420.This first substrate 400 is oppositely arranged with this second substrate 410, and this liquid crystal layer 420 is between this first substrate 400 and this second substrate 410.
This first substrate 400 comprises one first polaroid 402, one first substrate 401, a compensate film 405, a colored filter 403, one a black matrix 406 and a common electrode layer 404.This colored filter 403 is positioned at the inner surface of this first substrate 401, and it comprises a plurality of red filter units (R) 4031, a plurality of green filter unit (G) 4032 and a plurality of blue filter unit (B) 4033.This redness filter unit 4031, green filter unit 4032 and blue filter unit 4033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 406 at interval.This compensate film 405 comprises a plurality of first compensating units 4051, a plurality of second compensating unit 4052 and a plurality of the 3rd compensating unit 4053.This first compensating unit 4051 is arranged between this redness filter unit 4031 and first substrate 401, this second compensating unit 4052 is arranged between this green filter unit 4032 and first substrate 401, and the 3rd compensating unit 4053 is arranged between this blueness filter unit 4031 and first substrate 401.This first, second and the 3rd compensating unit 4051,4052,4053 by should black matrix 406 at interval.This first polaroid 402 is positioned at the outer surface of this first substrate 401.This common electrode layer 404 is formed at this colored filter 403 and should deceives the surface of matrix 406.
This second substrate 410 comprises one second substrate 411, one second polaroid 412 and a plurality of pixel electrode 413.This pixel electrode 413 is arranged on the inboard of this second substrate 411.This second polaroid 412 is positioned at the outer surface of this second substrate 411.
Please refer to Fig. 5, is the structural representation of display panels the 3rd embodiment of the present invention.This display panels 50 comprises one first substrate 500, one second substrate 510 and a liquid crystal layer 520.This first substrate 500 is oppositely arranged with this second substrate 510, and this liquid crystal layer 520 is between this first substrate 500 and this second substrate 510.
This first substrate 500 comprises one first polaroid 502, one first substrate 501, a colored filter 503, one black matrix 506, a compensate film and a common electrode layer 504.This colored filter 503 is positioned at the inner surface of this first substrate 501, and it comprises a plurality of red filter units (R) 5031, a plurality of green filter unit (G) 5032 and a plurality of blue filter unit (B) 5033.This redness filter unit 5031, green filter unit 5032 and blue filter unit 5033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 506 at interval.This common electrode layer 504 is formed at the inner surface of this colored filter 503.This compensate film comprises a plurality of first compensating units 5051, a plurality of second compensating units 5052 and a plurality of the 3rd compensating unit 5053.This first compensating unit 5051, second compensating unit 5052 and the 3rd compensating unit 5053 crossovers are arranged between corresponding filter unit and this common electrode layer 504, and between the corresponding filter unit and first substrate 501.This first polaroid 501 is positioned at the outer surface of this first substrate 502.
This second substrate 510 comprises one second substrate 511, one second polaroid 512 and a plurality of pixel electrode 513.This pixel electrode 513 is arranged on the inboard of this second substrate 511.This second polaroid 512 is positioned at the outer surface of this second substrate 511.
Please refer to Fig. 6, is the structural representation of display panels the 4th embodiment of the present invention.This display panels 60 comprises one first substrate 600, one second substrate 610 and a liquid crystal layer 620.This first substrate 600 is oppositely arranged with this second substrate 610, and this liquid crystal layer 620 is between this first substrate 600 and this second substrate 610.
This first substrate 600 comprises one first polaroid 602, one first substrate 601, a colored filter 603, one a black matrix 606 and a compensate film 605.This colored filter 603 is positioned at the inner surface of this first substrate 601, and it comprises a plurality of red filter units (R) 6031, a plurality of green filter unit (G) 6032 and a plurality of blue filter unit (B) 6033.This redness filter unit 6031, green filter unit 6032 and blue filter unit 6033 are done recurring rule in proper order according to R, G, B and are arranged, and by this black matrix 606 at interval.This compensate film 605 comprises a plurality of first compensating units 6051, a plurality of second compensating unit 6052 and a plurality of the 3rd compensating unit 6053.This first compensating unit 6051 is arranged on this redness filter unit 6031 and the adjacent black matrix 606, this second compensating unit 6052 is arranged on this green filter unit 6032 and the adjacent black matrix 606, and the 3rd compensating unit 6053 is arranged on this blueness filter unit 6033 and the adjacent black matrix 606.This first polaroid 602 is positioned at the outer surface of this first substrate 601.
This second substrate 610 comprises one second substrate 611, one second polaroid 612, a plurality of public electrode 614 and a plurality of pixel electrode 613.This public electrode 614 and this pixel electrode 613 all are arranged on the inner surface of this second substrate 611.This public electrode 614 is arranged with these pixel electrode 613 spaces.This second polaroid 612 is positioned at the outer surface of this second substrate 611.
It is described that display panels of the present invention is not limited to above embodiment, as: in first, second and the 3rd embodiment, public electrode can not be arranged in first substrate, and is arranged on the inner surface of second substrate; In the 3rd embodiment, a plurality of first, second, third compensating units can be arranged on arbitrarily between the corresponding filter unit and common electrode layer, and between the corresponding filter unit and first substrate.
Claims (10)
1. display panels comprises:
One first substrate;
One second substrate, itself and this first substrate is oppositely arranged;
One liquid crystal layer, it is between this first substrate and this second substrate;
One colored filter is positioned at close liquid crystal layer one side of first substrate, and it comprises a plurality of red filter units, a plurality of green filter unit and a plurality of blue filter unit; And
One compensate film;
It is characterized in that: this compensate film comprises a plurality of first, second and the 3rd compensating unit with different refraction coefficients, this first, second and the 3rd compensating unit correspond respectively to this redness filter unit, green filter unit setting and blue filter unit setting, the phase differential that produces in the time of can compensating ruddiness, green glow and blue light by this liquid crystal layer.
2. display panels as claimed in claim 1, it is characterized in that: this first compensating unit is arranged on the surface of this redness filter unit, this second compensating unit is arranged on the surface of this green filter unit, and the 3rd compensating unit is arranged on the surface of this blueness filter unit.
3. display panels as claimed in claim 1, it is characterized in that: this first compensating unit is between this redness filter unit and this first substrate, this second compensating unit is between this green filter unit and this first substrate, and the 3rd compensating unit is between this blueness filter unit and this first substrate.
4. display panels as claimed in claim 1, it is characterized in that: this first compensating unit is arranged on the surface of this redness filter unit, this second compensating unit is between this green filter unit and this first substrate, and the 3rd compensating unit is arranged on the surface of this blueness filter unit.
5. display panels as claimed in claim 1 is characterized in that: the refraction coefficient of this first compensating unit, second compensating unit and the 3rd compensating unit is to determine according to the predominant wavelength of red, green, blue coloured light respectively.
6. display panels as claimed in claim 1 is characterized in that: this first compensating unit, second compensating unit are different with the thickness of the 3rd compensating unit.
7. display panels as claimed in claim 1 is characterized in that: this display panels further comprises a common electrode layer, and this common electrode layer is positioned at close liquid crystal layer one side surface of this compensate film.
8. display panels as claimed in claim 1 is characterized in that: this display panels further comprises a plurality of public electrodes, and this public electrode is arranged on close liquid crystal layer one side surface of this second substrate.
9. display panels as claimed in claim 8 is characterized in that: this display panels further comprises a plurality of pixel electrodes, and this pixel electrode is arranged on close liquid crystal layer one side surface of this second substrate.
10. display panels as claimed in claim 1 is characterized in that: this compensate film is negative uniaxial compensation film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101769 CN1971360A (en) | 2005-11-23 | 2005-11-23 | LCD panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101769 CN1971360A (en) | 2005-11-23 | 2005-11-23 | LCD panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971360A true CN1971360A (en) | 2007-05-30 |
Family
ID=38112258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510101769 Pending CN1971360A (en) | 2005-11-23 | 2005-11-23 | LCD panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1971360A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166152A1 (en) * | 2013-04-09 | 2014-10-16 | 北京京东方光电科技有限公司 | Liquid crystal display panel, display device and method for manufacturing liquid crystal display panel |
-
2005
- 2005-11-23 CN CN 200510101769 patent/CN1971360A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166152A1 (en) * | 2013-04-09 | 2014-10-16 | 北京京东方光电科技有限公司 | Liquid crystal display panel, display device and method for manufacturing liquid crystal display panel |
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