CN102650760A - Liquid crystal display (LCD) panel and LCD device - Google Patents
Liquid crystal display (LCD) panel and LCD device Download PDFInfo
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- CN102650760A CN102650760A CN2011100451892A CN201110045189A CN102650760A CN 102650760 A CN102650760 A CN 102650760A CN 2011100451892 A CN2011100451892 A CN 2011100451892A CN 201110045189 A CN201110045189 A CN 201110045189A CN 102650760 A CN102650760 A CN 102650760A
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Abstract
The invention provides a liquid crystal display (LCD) panel and an LCD device. The LCD device includes the LCD panel and a backlight module. The LCD panel includes a first base plate, a second base plate, a liquid crystal layer, two phase compensation films and two double-shaft material films. The liquid crystal layer is arranged between the first base plate and the second base plate, wherein the liquid crystal layer is provided with liquid crystal molecules arranged in a bent form. The two phase compensation films are arranged on the same side or the two opposite sides of the liquid crystal layer respectively. The two double-shaft material films are arranged on at least one of the two phase compensation films. The invention can guarantee the manufacture and production of the LCD device.
Description
Technical field
The present invention relates to a kind of display panels and liquid crystal indicator, and particularly relevant for optical compensation bending mode (Optically Compensated Bend Mode, display panels OCB) and liquid crystal indicator.
Background technology
LCD (Liquid Crystal Display; LCD) have that high image quality, volume are little, in light weight, low driving voltage, with advantage such as low consumpting power, therefore be widely used in PDA(Personal Digital Assistant), mobile phone, shoot with video-corder projector, mobile computer, desktop display, automobile-used display, and various electronic products such as projection TV.
At present, most of LCD is that (it has narrower visual angle to twist mode, reaction velocity is slow for Twisted Nematic, TN) LCD, and big dispersion differences shortcomings such as (color dispersion).Compared to the twist mode LCD, optical compensation bending mode (OCB) LCD can have advantages such as wide viewing angle and high reaction velocity.Wherein, the LCD of TN type or OCB type all can be provided with phase compensation film (compensation film), can be in order to visual angle, contrast, color, color offset and the GTG etc. that improve display.
Yet; Compared to being widely used of the phase compensation film of TN type LCD; The phase compensation film of OCB type LCD only can be provided by few manufacturer, and the production quantity of phase compensation film is quite few, thereby limits the production and the manufacturing of OCB type LCD significantly.
Summary of the invention
One of the object of the invention is to provide a kind of display panels, it is characterized in that said display panels comprises: first substrate; Second substrate; Liquid crystal layer is arranged between said first substrate and said second substrate, and wherein said liquid crystal layer has the liquid crystal molecule of bend alignment; 2 first phase compensation films; Be arranged at respectively on the same side or relative both sides of said liquid crystal layer; Each said first phase compensation film is an orientation basic unit that comprises the discotic mesogenic layer and have two optical axis characteristics; Wherein said orientation basic unit has first slow axis and first fast axis perpendicular to said first slow axis, corresponds to refractive index in the largest face of said first slow axis and correspond between the refractive index of said first fast axis to have one first interior refringence; And 2 second phase compensation film; Be arranged at wherein at least one of said first phase compensation film; Wherein each said second phase compensation film has one second slow axis and second fast axis perpendicular to said second slow axis; Correspond to refractive index in the largest face of said second slow axis and correspond between the refractive index of said second fast axis and have one second interior refringence, said second interior refringence is to be same as said first interior refringence.
Two of the object of the invention is to provide a kind of display panels, it is characterized in that said display panels comprises: backlight module; And display panels, comprising: first substrate; Second substrate; Liquid crystal layer is arranged between said first substrate and said second substrate, and wherein said liquid crystal layer has the liquid crystal molecule of bend alignment; 2 first phase compensation films; Be arranged at respectively on the same side or relative both sides of said liquid crystal layer; Each said first phase compensation film is an orientation basic unit that comprises the discotic mesogenic layer and have two optical axis characteristics; Wherein said orientation basic unit has first slow axis and first fast axis perpendicular to said first slow axis, corresponds to refractive index in the largest face of said first slow axis and correspond between the refractive index of said first fast axis to have one first interior refringence; And 2 second phase compensation film; Be arranged at wherein at least one of said first phase compensation film; Wherein each said second phase compensation film has one second slow axis and second fast axis perpendicular to said second slow axis; Correspond to refractive index in the largest face of said second slow axis and correspond between the refractive index of said second slow axis and have one second interior refringence, said second interior refringence is to be same as said first interior refringence.
In one embodiment of this invention, said orientation basic unit axially is the frictional direction that is aligned in said discotic mesogenic layer.
In one embodiment of this invention, the thickness of each said second phase compensation film and optical characteristics are thickness and the optical characteristics that is same as said orientation basic unit.
In one embodiment of this invention, the material of said second phase compensation film is a Triafol T.
In one embodiment of this invention, said phase compensation film is the relative both sides that are arranged at said liquid crystal layer respectively, and said second phase compensation film is the outside that is arranged at each said first phase compensation film respectively.
In one embodiment of this invention, the direction of first slow axis of the said orientation basic unit of each said first phase compensation film is perpendicular to the direction of second slow axis of each said second phase compensation film.
In one embodiment of this invention, said second slow axis of the direction of said first slow axis of the said orientation basic unit of each said first phase compensation film and each said two phase compensate film to direction between have the angle of 45 degree.
In one embodiment of this invention, said first phase compensation film is the relative both sides that lay respectively at said liquid crystal layer, and said second phase compensation film is the same side that is positioned at said liquid crystal layer.
In one embodiment of this invention, said first phase compensation film and said second phase compensation film are the same sides that is positioned at said liquid crystal layer, and said second phase compensation film is between said first phase compensation film.
The combination of display panels of the present invention and liquid crystal indicator biaxial material film capable of using and phase compensation film compensates the phase differential of OCB type display panels, to guarantee the manufacturing and the production of OCB type liquid crystal indicator.
For letting the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows:
Description of drawings
Fig. 1 illustrates according to the backlight module of the first embodiment of the present invention and the synoptic diagram of display panels.
Fig. 2 illustrates the diagrammatic cross-section according to the display panels of the first embodiment of the present invention.
Fig. 3 illustrates the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the first embodiment of the present invention.
Fig. 4 illustrates the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the second embodiment of the present invention.
Fig. 5 illustrates the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the third embodiment of the present invention.
Fig. 6 illustrates the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the fourth embodiment of the present invention.
Embodiment
Please with reference to the 1st figure, it illustrates according to the backlight module of the first embodiment of the present invention and the synoptic diagram of display panels.The liquid crystal indicator of present embodiment includes display panels 100 and backlight module 101.Display panels 100 is the tops that are arranged at a backlight module 101, in order to form liquid crystal indicator.This backlight module 101 can be side-light type (Edge Lighting) backlight module or straight-down negative light inlet (Bottom Lighting) backlight module, and wherein backlight module 101 preferably can be provided with optical diaphragm group (not illustrating), to promote effect backlight.Optical diaphragm group for example can be: diffusion sheet, prismatic lens, inverse edge eyeglass (Turning Prism Sheet), brightness enhancement film (Brightness Enhancement Film; BEF), reflective brightness enhancement film (Dual Brightness Enhancement Film; DBEF), non-multilayer membrane type reflection Polarizer (Diffused Reflective Polarizer Film, DRPF) or above-mentioned combination in any.And the light source of backlight module 200 (not illustrating) for example is cathode fluorescent tube (Cold CathodeFluorescent Lamp; CCFL), light emitting diode (Light-Emitting Diode; LED), Organic Light Emitting Diode (Organic Light Emitting Diode; OLED), electroluminescence sheet (Electro-Luminescence; EL) or luminous lamp strip (Light Bar), in order to provide in backlight to the display panels 100.
Please with reference to the 2nd figure, it illustrates the diagrammatic cross-section according to the display panels of the first embodiment of the present invention.The penetrating shaft direction of first Polarizer 110, first phase compensation film 130 and 170, the second biaxial material film 120 that the display panels 100 of present embodiment can comprise that storehouse is provided with and 180, first substrate 140, liquid crystal layer 150, second substrate 160 and second Polarizer, 190, the first Polarizers 110 is perpendicular to the penetrating shaft direction of second Polarizer 190.Wherein, Liquid crystal layer 150 is arranged between first substrate 140 and second substrate 160; And liquid crystal layer 150 has the liquid crystal molecule of flexible arrangement, thereby display panels 100 can carry out the operation of optical compensation bending mode (OCB), and can be used as the display panel of OCB type LCD.
Shown in the 2nd figure, first substrate 140 of present embodiment is provided with black-matrix layer (BlackMatrix) 141, common electrode layer 142 and first both alignment layers 143, and it is arranged at a side (in the face of the direction of liquid crystal layer 150) of first substrate 140 in regular turn.Be embedded with in the black-matrix layer 141 to have the formed chromatic filter layer of chromatic photoresist material (not illustrating) of light transmission; The material of black-matrix layer 141 for example is: metal (for example chromium), graphite or resin type material, thereby first substrate 140 can form a colored filter substrate.Common electrode layer 142 is made with the material with electric conductivity and light transmission, for example: ITO, IZO, AZO, GZO, TCO or ZnO.
Shown in the 2nd figure; Second substrate 160 of present embodiment is provided with pixel electrode layer 161, second both alignment layers 162 and many gate lines that intersect vertically and data line (not illustrating); And can form a thin film transistor (TFT) (Thin Film Transistor; TFT) substrate, wherein the pixel electrode layer 161 and second both alignment layers 162 are the opposite sides (in the face of the direction of liquid crystal layer 150) that are arranged at second substrate 160 in order.
Shown in the 2nd figure, first phase compensation film 130 and 170 of present embodiment is to be arranged at respectively between first Polarizer 110 and first substrate 140, and between second substrate 160 and second Polarizer 190.First phase compensation film 130 and 170 can be in order to the phase differential of compensation liquid crystal layer 150, with the characteristics such as visual angle, contrast, color, color offset and GTG of improving display panels 100.First phase compensation film 130 and 170 can comprise orientation basic unit 102 and discotic mesogenic (DLC) layer 103 respectively, and discotic mesogenic layer 103 is to be formed in the orientation basic unit 102, in order to form the incorgruous layer of an optics (opticallyanisotropic layer).Wherein, Orientation basic unit 102 has and is positioned on the same plane and the orthogonal first slow axis x1 and the first fast axis y1; Orientation basic unit 102 has refractive index n x1 in the largest face on this first slow axis x1; And orientation basic unit 102 has refractive index n y1 in the largest face on this first fast axis y1, correspond to refractive index n x1 in the largest face of the first slow axis x1 and correspond to the first fast axis y1 refractive index n y1 between have one first interior refringence (nx1-ny1).In one embodiment, orientation basic unit 102 has plastic basic unit (like Triafol T TAC) and both alignment layers (like PI or PVA etc.).
In the present embodiment; First phase compensation film 130 or 170 orientation basic unit 102 axially be friction (Rubbing) direction that is aligned in discotic mesogenic layer 103; And can be applicable in the TN type LCD, that is the phase compensation film 130,170 of present embodiment can be the employed phase compensation film of TN type LCD.
Please with reference to the 3rd figure, it is the synoptic diagram that illustrates liquid crystal layer, first phase compensation film and the second biaxial material film according to the first embodiment of the present invention.Second phase compensation film 120 and 180 of present embodiment is to be arranged at respectively between first Polarizer 110 and first phase compensation film 130, and between second phase compensation film 170 and second Polarizer 190.But the material essence of second phase compensation film 120 and 180 is same as the orientation basic unit 102 of first phase compensation film 130,170; For example Triafol T (TAC), and the thickness of second phase compensation film 120,180 and optical characteristics are thickness and the optical characteristics that essence is same as orientation basic unit 102.Each second phase compensation film 120,180 has and is positioned on the same plane and the orthogonal second slow axis x2 and the second fast axis y2; It corresponds respectively to the first slow axis x1 and the first fast axis y1 of orientation basic unit 102; Each second phase compensation film 120,180 has refractive index n x2 in the largest face at this three the second slow axis on x2; Each second phase compensation film biaxial material film 120,180 has refractive index n y2 on this four the second rapid axial y2, correspond to refractive index n x2 in the largest face of the second slow axis x2 and correspond to have between one second interior refringence thereby the 3rd axial x2 and the second fast axis y2 between the refractive index n y2 of second fast axis to have second refringence (nx2-ny2).Wherein, this second interior refringence second refringence (nx2-ny2) is that essence is same as first interior refringence (nx1-ny1).
In the present embodiment, second phase compensation film, 120,180 first biaxial material films 120 can directly fit in respectively on first phase compensation film 130, and the second biaxial material film 180 can directly fit on the second biaxial material film 1,180.Moreover; In the present embodiment; Second phase compensation film 120,180 axially be perpendicular to the first phase compensation film phase compensation film 130,170 axially; That is second phase compensation film the 120, the 180th, rotate 90 degree and fit on first phase compensation film 130,170; At this moment, first axial first slow axis x1 of first phase compensation film 130,170 and the second fast axis y2 of biaxial material film second phase compensation film 120,180 are on same direction, and second axial y1 of first phase compensation film 130,170 and the 3rd axial x2 of biaxial material film second phase compensation film 120,180 are on same direction.
When second phase compensation film 120,180 of present embodiment fits in 130,170 last times of phase compensation film; Second phase compensation film 120,180 and first phase compensation film 130,170 can be equivalent to the optical effect of a negative C-type dull and stereotyped (C plate), and be poor with the forward phase of compensation liquid crystal layer 150.Thereby the combination of second phase compensation film 120,180 and first phase compensation film 130,170 can be in order to the phase differential of the liquid crystal molecule of the bend alignment of compensation liquid crystal layer 150, that is can be in order to the phase differential of compensate for optical compensated bend (OCB) type display panels.
Therefore; When can't obtain OCB type liquid crystal indicator during special-purpose phase compensation film; First phase compensation film 130,170 of present embodiment can be applicable in TN type display panels and the OCB type display panels simultaneously, to guarantee the manufacturing and the production of OCB type liquid crystal indicator.When being applied to OCB type display panels, first phase compensation film, 130,170 second phase compensation films 120,180 capable of being combined are equivalent to the dull and stereotyped optical effect of negative C-type, and are poor with the compensation forward phase.
Please with reference to the 4th figure, it is the synoptic diagram that illustrates liquid crystal layer, first phase compensation film and second phase compensation film according to the second embodiment of the present invention.Below only describe with regard to the different place between the present embodiment and first embodiment, its resemblance then repeats no more at this.Compared to first embodiment; Second phase compensation film 220,280 of second embodiment axially with first phase compensation film 230,270 axially between have the angle (folder 45 degree) of 45 degree, that is second phase compensation film the 220, the 280th rotates 45 and spends and fit on the phase compensation film 230,270.At this moment, second phase compensation film 220,280 of two folder 45 degree and the combination of first phase compensation film 230,270 also can be equivalent to the dull and stereotyped optical effect of negative C-type, with the phase differential of compensation OCB type display panels.
Please with reference to the 5th figure; It is only to describe with regard to the different place between the present embodiment and first embodiment below illustrating the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the third embodiment of the present invention, and its resemblance then repeats no more at this.Compared to first embodiment, first phase compensation film the 330, the 370th of the 3rd embodiment lays respectively at the relative both sides of liquid crystal layer 150, and second phase compensation film the 320, the 380th, is positioned at the same side of liquid crystal layer 150, for example is positioned on first phase compensation film 330.At this moment, these two second phase compensation films 320,380 can form second phase compensation film of two times of thickness, and fit on first phase compensation film 330, in order to being equivalent to the dull and stereotyped optical effect of negative C-type, and can compensate the phase differential of OCB type display panels.
Please with reference to the 6th figure; It is only to describe with regard to the different place between the present embodiment and first embodiment below illustrating the synoptic diagram of liquid crystal layer, first phase compensation film and second phase compensation film according to the fourth embodiment of the present invention, and its resemblance then repeats no more at this.Compared to first embodiment, first phase compensation film 430,470 of the 4th embodiment and second phase compensation film the 420, the 480th are positioned at the same side of liquid crystal layer 150, and second phase compensation film the 420, the 480th, be positioned at first phase compensation film 430 and 470 between.At this moment, the combination of first phase compensation film 430,470 and second phase compensation film 420,480 also can form the dull and stereotyped optical effect of negative C-type, can compensate the phase differential of OCB type display panels.
Embodiment by the invention described above can know; Display panels of the present invention and liquid crystal indicator second phase compensation film capable of being combined is on first phase compensation film; With the phase differential of compensation OCB type display panels, thereby can guarantee the manufacturing and the production of OCB type liquid crystal indicator.
In sum; Though the present invention discloses as above with preferred embodiment; But above-mentioned preferred embodiment is not that those of ordinary skill in the art is not breaking away from the spirit and scope of the present invention in order to restriction the present invention; All can do various changes and retouching, so protection scope of the present invention is as the criterion with the scope that claim defines.
Claims (10)
1. display panels is characterized in that said display panels comprises:
First substrate;
Second substrate;
Liquid crystal layer is arranged between said first substrate and said second substrate, and wherein said liquid crystal layer has the liquid crystal molecule of bend alignment;
2 first phase compensation films; Be arranged at respectively on the same side or relative both sides of said liquid crystal layer; Each said first phase compensation film is an orientation basic unit that comprises the discotic mesogenic layer and have two optical axis characteristics; Wherein said orientation basic unit has first slow axis and first fast axis perpendicular to said first slow axis, corresponds to refractive index in the largest face of said first slow axis and correspond between the refractive index of said first fast axis to have one first interior refringence; And
2 second phase compensation films; Be arranged at wherein at least one of said first phase compensation film; Wherein each said second phase compensation film has one second slow axis and second fast axis perpendicular to said second slow axis; Correspond to refractive index in the largest face of said second slow axis and correspond between the refractive index of said second fast axis and have one second interior refringence, said second interior refringence is to be same as said first interior refringence.
2. display panels according to claim 1 is characterized in that: said orientation basic unit axially be the frictional direction that is aligned in said discotic mesogenic layer.
3. display panels according to claim 2 is characterized in that: the thickness of each said second phase compensation film and optical characteristics are thickness and the optical characteristics that is same as said orientation basic unit.
4. display panels according to claim 2 is characterized in that: the material of said second phase compensation film is a Triafol T.
5. display panels according to claim 1 is characterized in that: said phase compensation film is the relative both sides that are arranged at said liquid crystal layer respectively, and said second phase compensation film is the outside that is arranged at each said first phase compensation film respectively.
6. display panels according to claim 5 is characterized in that: the direction of first slow axis of the said orientation basic unit of each said first phase compensation film is perpendicular to the direction of second slow axis of each said second phase compensation film.
7. display panels according to claim 5 is characterized in that: the direction of said first slow axis of the said orientation basic unit of each said first phase compensation film and said second slow axis of each said two phase compensate film to direction between have the angle of 45 degree.
8. display panels according to claim 1 is characterized in that: said first phase compensation film is the relative both sides that lay respectively at said liquid crystal layer, and said second phase compensation film is the same side that is positioned at said liquid crystal layer.
9. display panels according to claim 1 is characterized in that: said first phase compensation film and said second phase compensation film are the same sides that is positioned at said liquid crystal layer, and said second phase compensation film is between said first phase compensation film.
10. display panels is characterized in that said display panels comprises:
Backlight module; And
Display panels comprises:
First substrate;
Second substrate;
Liquid crystal layer is arranged between said first substrate and said second substrate, and wherein said liquid crystal layer has the liquid crystal molecule of bend alignment;
2 first phase compensation films; Be arranged at respectively on the same side or relative both sides of said liquid crystal layer; Each said first phase compensation film is an orientation basic unit that comprises the discotic mesogenic layer and have two optical axis characteristics; Wherein said orientation basic unit has first slow axis and first fast axis perpendicular to said first slow axis, corresponds to refractive index in the largest face of said first slow axis and correspond between the refractive index of said first fast axis to have one first interior refringence; And
2 second phase compensation films; Be arranged at wherein at least one of said first phase compensation film; Wherein each said second phase compensation film has one second slow axis and second fast axis perpendicular to said second slow axis; Correspond to refractive index in the largest face of said second slow axis and correspond between the refractive index of said second slow axis and have one second interior refringence, said second interior refringence is to be same as said first interior refringence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100451892A CN102650760A (en) | 2011-02-25 | 2011-02-25 | Liquid crystal display (LCD) panel and LCD device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100451892A CN102650760A (en) | 2011-02-25 | 2011-02-25 | Liquid crystal display (LCD) panel and LCD device |
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| CN102650760A true CN102650760A (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100451892A Pending CN102650760A (en) | 2011-02-25 | 2011-02-25 | Liquid crystal display (LCD) panel and LCD device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512238A (en) * | 2002-12-30 | 2004-07-14 | Lg.菲利浦Lcd株式会社 | Optical compensation type double refraction type liquid crystal display device and its producing method |
| CN1661442A (en) * | 2004-02-26 | 2005-08-31 | 精工爱普生株式会社 | Liquid crystal device and electronic apparatus |
| WO2006100901A1 (en) * | 2005-03-24 | 2006-09-28 | Nitto Denko Corporation | Liquid crystal panel, liquid crystal television, and liquid crystal display device |
| CN1979294A (en) * | 2005-12-05 | 2007-06-13 | 统宝光电股份有限公司 | Systems for displaying images |
| EP1879066A1 (en) * | 2005-03-15 | 2008-01-16 | Sony Corporation | Phase difference compensation panel, phase difference compensator, liquid crystal display device, and projection type image display device |
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2011
- 2011-02-25 CN CN2011100451892A patent/CN102650760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512238A (en) * | 2002-12-30 | 2004-07-14 | Lg.菲利浦Lcd株式会社 | Optical compensation type double refraction type liquid crystal display device and its producing method |
| CN1661442A (en) * | 2004-02-26 | 2005-08-31 | 精工爱普生株式会社 | Liquid crystal device and electronic apparatus |
| EP1879066A1 (en) * | 2005-03-15 | 2008-01-16 | Sony Corporation | Phase difference compensation panel, phase difference compensator, liquid crystal display device, and projection type image display device |
| WO2006100901A1 (en) * | 2005-03-24 | 2006-09-28 | Nitto Denko Corporation | Liquid crystal panel, liquid crystal television, and liquid crystal display device |
| CN1979294A (en) * | 2005-12-05 | 2007-06-13 | 统宝光电股份有限公司 | Systems for displaying images |
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Application publication date: 20120829 |