CN202693957U - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
- Publication number
- CN202693957U CN202693957U CN 201220316077 CN201220316077U CN202693957U CN 202693957 U CN202693957 U CN 202693957U CN 201220316077 CN201220316077 CN 201220316077 CN 201220316077 U CN201220316077 U CN 201220316077U CN 202693957 U CN202693957 U CN 202693957U
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- Prior art keywords
- liquid crystal
- wave plate
- compensate film
- polaroid
- quarter
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Abstract
The utility model relates to a passive matrix vertical alignment (PM-VA) type liquid crystal display panel. The liquid crystal display panel comprises a liquid crystal cell used to align liquid crystals vertically, and a first one fourth wave plate and a second one fourth wave plate which are respectively arranged on two outside faces of the liquid crystal cell. A first compensation film and a first polaroid are sequentially arranged outside the first one fourth wave plate, and a second compensation film and a second polaroid are sequentially arranged outside the second one fourth wave plate. The liquid crystal display panel is characterized in that an included angle between an absorption axis of the first polaroid and a slow axis of the first one fourth wave plate is +/_ 45 degrees, and an included angle between an absorption axis of the second polaroid and a slow axis of the second one fourth wave plate is +/_ 45 degrees. The utility model further provides a liquid crystal display device provided with the liquid crystal display panel. The liquid crystal display panel and the liquid crystal display device can avoid the undesirable phenomenon of black lines in the process of displaying, and therefore whole displaying effect of the liquid crystal display device is improved.
Description
Technical field
The utility model relates to a kind of display panels and liquid crystal indicator, relates in particular to less passive-matrix vertical alignment-type liquid crystal display panel and the liquid crystal indicator of light leak in a kind of dark attitude situation.
Background technology
That liquid crystal indicator has is frivolous, power saving, the advantage such as radiationless, has been widely used in various information, communication and the consumer products.Owing to now the characteristic requirements of liquid crystal indicator improved constantly, particularly (its method for measurement is that panel is under black and white voltage decided at the higher level but not officially announced to the contrast of display panels, the ratio of white picture brightness and black picture brightness), its value improves constantly, and has become the important indicator of display panels performance.
The brightness of liquid crystal indicator, homogeneity and visual angle are its important quality standards.In the prior art, by the compensate film with dish shape molecular layer can be suitable visual angle and the light leak problem of compensation liquid crystal indicator in some bright attitude or dark attitude situation.
Yet, in passive-matrix vertical orientation (PM-VA) type display panels, main compensate film by C-plate compensates at present, perhaps the mode by C-Plate and A-Plate combination compensates because lower with great visual angle, the delay that the liquid crystal molecule homeotropic alignment produces and descend with great visual angle the optical delay of the nonopiate generation of polaroid and the light leak problem that forms.
Although prior art compensates the light leak that has solved in the bright attitude situation to a certain extent, but because liquid crystal molecule is affected by both alignment layers friction and ion, when powering up in the situation, liquid crystal molecule easily falls down towards different directions in liquid crystal cell, thereby produce the disclination problem of Liquid Crystal Molecules Alignment, cause in two orthogonal polarizers, producing demonstration black line bad phenomenon.
The utility model content
The utility model provides a kind of passive-matrix vertical orientation (PM-VA) type display panels, the liquid crystal cell that comprises the vertical orientation liquid crystal, be separately positioned on the first quarter-wave plate and second quarter-wave plate of described liquid crystal and two lateral surfaces, described the first quarter-wave plate outside is disposed with the first compensate film and the first polaroid, described the second quarter-wave plate outside is disposed with the second compensate film and the second polaroid, angle between the slow axis of the absorption axes of described the first polaroid and the first quarter-wave plate is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid and the second quarter-wave plate is ± 45 degree.
According to a preferred embodiment of the present utility model, described the first compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
According to a preferred embodiment of the present utility model, described the second compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
According to a preferred embodiment of the present utility model, be combined by pressure-sensitive adhesive between described the first polaroid, described the first compensate film and described the first quarter-wave plate.
According to a preferred embodiment of the present utility model, be combined by pressure-sensitive adhesive between described the second polaroid, described the second compensate film and described the second quarter-wave plate.
The utility model also provides a kind of liquid crystal indicator, comprise passive-matrix vertical orientation (PM-VA) type display panels and the backlight module that light source is provided for described passive-matrix vertical alignment-type liquid crystal display panel, described passive-matrix vertical alignment-type liquid crystal display panel comprises the liquid crystal cell of vertical orientation liquid crystal, be separately positioned on the first quarter-wave plate and second quarter-wave plate of described liquid crystal and two lateral surfaces, described the first quarter-wave plate outside is disposed with the first compensate film and the first polaroid, described the second quarter-wave plate outside is disposed with the second compensate film and the second polaroid, the angle of stating between the slow axis of the absorption axes of the first polaroid and the first quarter-wave plate is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid and the second quarter-wave plate is ± 45 to spend.
According to a preferred embodiment of the present utility model, described the first compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
According to a preferred embodiment of the present utility model, described the second compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
According to a preferred embodiment of the present utility model, be combined by pressure-sensitive adhesive between described the first polaroid, described the first compensate film and described the first quarter-wave plate.
According to a preferred embodiment of the present utility model, be combined by pressure-sensitive adhesive between described the second polaroid, described the second compensate film and described the second quarter-wave plate.
Compared to prior art, liquid crystal indicator of the present utility model has the following advantages: described the first quarter-wave plate is set between described the first compensate film and described liquid crystal cell, described the second quarter-wave plate is set between described the second compensate film and described liquid crystal cell, and the angle between the slow axis of the absorption axes of described the first polaroid and the first quarter-wave plate is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid and the second quarter-wave plate is ± 45 degree.Like this, the second polaroid cooperates formation rotatory polarization sheet with the second quarter-wave plate, the first polaroid cooperates formation circle analyzing polaroid with the first quarter-wave plate, can solve that liquid crystal molecule in the described liquid crystal cell is swung to difference and the molecule that causes points to the different problem of resultant polaroid angle, when not affecting existing display effect, avoid in procedure for displaying, producing the bad phenomenon of black line, thereby improve the whole display effect of described liquid crystal indicator.
Description of drawings
Fig. 1 is the structural representation of a preferred implementation of the utility model liquid crystal indicator.
Fig. 2 is the stereo decomposing structural representation of the display panels in the liquid crystal indicator shown in Figure 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
See also Fig. 1, Fig. 1 is the stereo decomposing structural representation of the utility model liquid crystal indicator one preferred implementation.This liquid crystal indicator 100 comprises a display panels 1 and the backlight module 2 that light source is provided for described display panels 1.
Described display panels 1 is passive-matrix vertical orientation (PM-VA) type display panels; Described backlight module 2 is the backlight module of light source for adopting light emitting diode, for example can be backlight module straight-down negative or side entering type, does not do specific descriptions at this.
Please consult simultaneously Fig. 2, Fig. 2 is the stereo decomposing structural representation of the display panels 1 in the liquid crystal indicator 100 shown in Figure 1.Described display panels 1 comprises liquid crystal cell 10, the first quarter-wave plate 11, the second quarter-wave plate 12, the first polaroid 14, the second polaroid 15, the first compensate film 16 and the second compensate film 17.
Described liquid crystal cell 10 generally comprises two substrate (not shown) that are parallel to each other and the liquid crystal layer (not shown) that is folded in two vertical orientations between the substrate, forms sandwich structure, and its structure is well known, and does not repeat them here.
Described the first quarter-wave plate 11 and the second quarter-wave plate 12 are parallel to each other, and are separately positioned on the two relative outsides of described liquid crystal cell 10.
Described the first compensate film 16 is arranged on the outside of described the first quarter-wave plate 11, namely is arranged on described the first quarter-wave plate 11 away from the another side of described liquid crystal cell 10; Described the second compensate film 17 is arranged on the outside of described the second quarter-wave plate 12, namely is arranged on described the second quarter-wave plate 12 away from the another side of described liquid crystal cell 10.Described the first compensate film 16 has similar or identical structural and optical characteristic with described the second compensate film 17.
Further, described the first compensate film 16 and/or described the second compensate film 17 can for C+ type compensate film, that is, satisfy condition Nx=Ny＜Nz, also can for C-type compensate film, that is, satisfy condition Nx=Ny〉Nz, can also be A+ type compensate film, that is, satisfy condition Nx Ny=Nz.
Described the first polaroid 14 is arranged on the outside of described the first compensate film 16, and described the second polaroid 15 is arranged on the outside of described the second compensate film 17, and the polarization direction of its described first polaroid 14 and the second polaroid 15 is mutually vertical.
Further, the angle between the slow axis of the absorption axes of described the first polaroid 14 and the first quarter-wave plate 11 is ± 45 degree; Angle between the slow axis of the absorption axes of described the second polaroid 15 and the second quarter-wave plate 12 is ± 45 degree.
Described the first polaroid 14 and described the second polaroid 15 have same or analogous structure, generally include stacked setting polyvinyl alcohol (PVA) (Polyvinylalcohol, PVA) film and triacetate fiber (Triacetyl-cellulose, TAC) film, polyvinyl alcohol film has the polarisation effect, triacetate cellulose membrane has certain toughness and ductility, for described the first polaroid 14 and described the second polaroid 15 provide preferably toughness.
Further, the outside of described the first polaroid 14 and described the second polaroid 15 can also arrange respectively protective seam, thereby protects described the first polaroid 14 and described the second polaroid 15 not to be damaged by outside sharp objects.
Can be bonded together by the bonding agent of pressure sensitive adhesive or other types between described the first polaroid 14, described the first compensate film 16 and described the first quarter-wave plate 11; Same, can be bonded together by the bonding agent of pressure sensitive adhesive or other types between described the second polaroid 15, described the second compensate film 17 and described the second quarter-wave plate 12.
Compared to prior art, liquid crystal indicator 100 of the present utility model has the following advantages: described the first quarter-wave plate 11 is set between described the first compensate film 16 and described liquid crystal cell 10, described the second quarter-wave plate 12 is set between described the second compensate film 17 and described liquid crystal cell 10, and the angle between the slow axis of the absorption axes of described the first polaroid 14 and the first quarter-wave plate 11 is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid 15 and the second quarter-wave plate 12 is ± 45 degree.Like this, the second polaroid 15 cooperates formation rotatory polarization sheet with the second quarter-wave plate 12, the first polaroid 14 cooperates formation circle analyzing polaroid with the first quarter-wave plate 11, can solve that liquid crystal molecules in the described liquid crystal cell 10 are swung to difference and the molecule that causes points to the different problem of resultant polaroid angle, when not affecting existing display effect, avoid in procedure for displaying, producing the bad phenomenon of black line, thereby improve the whole display effect of described liquid crystal indicator 100.
In the above-described embodiments, only the utility model has been carried out exemplary description, but those skilled in the art can carry out various modifications to the utility model after reading present patent application in the situation that does not break away from spirit and scope of the present utility model.
Claims (10)
1. a passive-matrix vertical orientation (PM-VA) type display panels, the liquid crystal cell that comprises the vertical orientation liquid crystal, be separately positioned on the first quarter-wave plate and second quarter-wave plate of described liquid crystal and two lateral surfaces, described the first quarter-wave plate outside is disposed with the first compensate film and the first polaroid, described the second quarter-wave plate outside is disposed with the second compensate film and the second polaroid, it is characterized in that, angle between the slow axis of the absorption axes of described the first polaroid and the first quarter-wave plate is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid and the second quarter-wave plate is ± 45 degree.
2. passive-matrix vertical alignment-type liquid crystal display panel as claimed in claim 1 is characterized in that, described the first compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
3. passive-matrix vertical alignment-type liquid crystal display panel as claimed in claim 1 is characterized in that, described the second compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
4. passive-matrix vertical alignment-type liquid crystal display panel as claimed in claim 1 is characterized in that, is combined by pressure-sensitive adhesive between described the first polaroid, described the first compensate film and described the first quarter-wave plate.
5. passive-matrix vertical alignment-type liquid crystal display panel as claimed in claim 1 is characterized in that, is combined by pressure-sensitive adhesive between described the second polaroid, described the second compensate film and described the second quarter-wave plate.
6. liquid crystal indicator, comprise passive-matrix vertical orientation (PM-VA) type display panels and the backlight module that light source is provided for described passive-matrix vertical alignment-type liquid crystal display panel, described passive-matrix vertical alignment-type liquid crystal display panel comprises the liquid crystal cell of vertical orientation liquid crystal, be separately positioned on the first quarter-wave plate and second quarter-wave plate of described liquid crystal and two lateral surfaces, described the first quarter-wave plate outside is disposed with the first compensate film and the first polaroid, described the second quarter-wave plate outside is disposed with the second compensate film and the second polaroid, it is characterized in that, the angle of stating between the slow axis of the absorption axes of the first polaroid and the first quarter-wave plate is ± 45 degree, and the angle between the slow axis of the absorption axes of described the second polaroid and the second quarter-wave plate is ± 45 to spend.
7. liquid crystal indicator as claimed in claim 6 is characterized in that, described the first compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
8. liquid crystal indicator as claimed in claim 6 is characterized in that, described the second compensate film is any one in C+ type compensate film, C-type compensate film and the A+ type compensate film.
9. liquid crystal indicator as claimed in claim 6 is characterized in that, is combined by pressure-sensitive adhesive between described the first polaroid, described the first compensate film and described the first quarter-wave plate.
10. liquid crystal indicator as claimed in claim 6 is characterized in that, is combined by pressure-sensitive adhesive between described the second polaroid, described the second compensate film and described the second quarter-wave plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316077 CN202693957U (en) | 2012-07-02 | 2012-07-02 | Liquid crystal display panel and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316077 CN202693957U (en) | 2012-07-02 | 2012-07-02 | Liquid crystal display panel and liquid crystal display device |
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| Publication Number | Publication Date |
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| CN202693957U true CN202693957U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220316077 Expired - Lifetime CN202693957U (en) | 2012-07-02 | 2012-07-02 | Liquid crystal display panel and liquid crystal display device |
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| CN (1) | CN202693957U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301845A (en) * | 2015-11-24 | 2016-02-03 | 深圳市华星光电技术有限公司 | Liquid crystal panel |
| CN109416482A (en) * | 2017-06-15 | 2019-03-01 | 京东方科技集团股份有限公司 | The method that fringing field drives liquid crystal display panel and determines the optical axis direction of glassy layer in fringing field driving liquid crystal display panel |
| CN111950335A (en) * | 2019-05-17 | 2020-11-17 | 华为技术有限公司 | Laminated structure, display panel and electronic device |
| CN112698527A (en) * | 2020-12-30 | 2021-04-23 | 天马微电子股份有限公司 | Liquid crystal display panel and display device |
-
2012
- 2012-07-02 CN CN 201220316077 patent/CN202693957U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301845A (en) * | 2015-11-24 | 2016-02-03 | 深圳市华星光电技术有限公司 | Liquid crystal panel |
| WO2017088291A1 (en) * | 2015-11-24 | 2017-06-01 | 深圳市华星光电技术有限公司 | Liquid crystal panel |
| CN109416482A (en) * | 2017-06-15 | 2019-03-01 | 京东方科技集团股份有限公司 | The method that fringing field drives liquid crystal display panel and determines the optical axis direction of glassy layer in fringing field driving liquid crystal display panel |
| CN109416482B (en) * | 2017-06-15 | 2021-10-01 | 京东方科技集团股份有限公司 | Fringe field switching liquid crystal display panel and method of determining optical axis direction of glass layer in fringe field switching liquid crystal display panel |
| CN111950335A (en) * | 2019-05-17 | 2020-11-17 | 华为技术有限公司 | Laminated structure, display panel and electronic device |
| CN112698527A (en) * | 2020-12-30 | 2021-04-23 | 天马微电子股份有限公司 | Liquid crystal display panel and display device |
| CN112698527B (en) * | 2020-12-30 | 2023-04-18 | 天马微电子股份有限公司 | Liquid crystal display panel and display device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |