CN201233484Y - LCD device having compensating sheet - Google Patents
LCD device having compensating sheet Download PDFInfo
- Publication number
- CN201233484Y CN201233484Y CNU2008200778412U CN200820077841U CN201233484Y CN 201233484 Y CN201233484 Y CN 201233484Y CN U2008200778412 U CNU2008200778412 U CN U2008200778412U CN 200820077841 U CN200820077841 U CN 200820077841U CN 201233484 Y CN201233484 Y CN 201233484Y
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- liquid crystal
- compensating plate
- polaroid
- display device
- angle
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Abstract
A liquid crystal display device with a compensating gage belongs to the technical field of liquid crystal, and is used for solving the ground color problem of liquid crystal. The technical proposal thereof is as follows: the liquid crystal display device consists of a liquid crystal box, a polaroid and the compensating gage, wherein the thickness d of the liquid crystal box is 6 Mum, and the refractive index aeolotropy delta n of the liquid crystal is 0.14. The utility model selects reasonable liquid crystal box structure arrangement and optimal matched compensating gage and Polaroid, enables the liquid crystal display device to have optimal contrast and visual angle characteristics either in a positive display state or in a negative display state, and completely eliminates the ground color display problem without power.
Description
Technical field
The utility model relates to a kind of liquid crystal display device structure, belongs to the liquid crystal technology field.
Background technology
Liquid crystal display device obtains application more and more widely in electronic installation, its basic comprising is that two glass picture surfaces that are carved with conductive film figure are buckled together, and forms liquid crystal cell.In liquid crystal cell, pour into liquid crystal, stick polaroid at glass surface.Under weak electric field or the action of a magnetic field, the liquid crystal molecule ordering changes, thereby demonstrates figure.In use, when becoming a branch of linearly polarized light after the polaroid in the extraneous light incident, but linearly polarized light no longer only has been the distortion polarization direction through layer of liquid crystal molecule the time, but be decomposed into the two-beam line---ordinary light and extraordinary ray, this two-beam line interferes with each other in outgoing, thereby makes liquid crystal cell (STN LCD-----Super Twisted Nematic-Liquid Crystal Display super-twist nematic liquid crystal display) always present certain background color (such as green and blue) when not powering up.For eliminating this background color of liquid crystal display device, better simply way utilize exactly one just the same, but two liquid crystal cells that rotation direction is opposite are superimposed, make the two-beam line that interferes with each other compensate mutually again, thereby realization white and black displays, Here it is two liquid crystal cells (Double STN) are that cost is too high but adopt the defective of two liquid crystal cells.Another kind of way is to utilize the orientation of one deck iodine molecule to twist to simulate a liquid crystal cell, substitutes a liquid crystal cell with thin film (phasic difference plate), thereby realizes white and black displays, and this film is referred to as film liquid crystal cell (FilmSTN).The box structure of liquid crystal cell (STN LCD) has multiple at present, Ge collocation difference of thick d of the box of liquid crystal and refractive index Xiang Yi ⊿ n, need to cooperate the different offsets and the angle of polaroid, the effect difference of various selections or collocation, only find their the best collocation, just the display effect that can realize ideal.
Summary of the invention
Technical problem to be solved in the utility model is to design a liquid crystal display device that can produce the band compensating plate of best contrast and viewing angle characteristic.
The technical scheme that addresses the above problem is:
A kind of liquid crystal display device with compensating plate, it is made up of liquid crystal cell, polaroid, compensating plate, and its improvements are: the thick d of the box of described liquid crystal cell is 6um, and Ge is 0.14 Xiang Yi ⊿ n for described liquid-crystal refractive-index.
The liquid crystal display device of above-mentioned band compensating plate, described compensating plate is a slice, is positioned at liquid crystal cell one side, and the compensating plate angle is 0 °, and offset is 575nm, and the polaroid angle is 40 °.
The liquid crystal display device of above-mentioned band compensating plate, described compensating plate are two, all are positioned at a side of liquid crystal cell, overlapping placement, and the angle of two compensating plates is respectively 105 ° and 135 °, and offset is 425nm, and the polaroid angle is 170 °.
The utility model has been selected the compensating plate and the polaroid of rational liquid crystal cell structure collocation and optimal parameter for use, make liquid crystal display device can both produce best contrast and viewing angle characteristic, eliminated the demonstration problem of background color when not powering up fully in just apparent and negative showing under the state.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model (just showing the film liquid crystal cell);
Fig. 2 is the angle synoptic diagram of the compensating plate of Fig. 1;
Fig. 3 is the angle synoptic diagram of the polaroid of Fig. 1;
Fig. 4 is another kind of structural representation of the present utility model (the negative film liquid crystal cell that shows);
Fig. 5 is the angle synoptic diagram of a compensating plate among Fig. 4;
Fig. 6 is the angle synoptic diagram of another compensating plate among Fig. 4;
Fig. 7 is the angle synoptic diagram of polaroid among Fig. 4.
Mark is as follows among the figure: liquid crystal 1, glass 2, compensating plate 3, polaroid 4, compensating plate angle α (referring to the optical axis of compensating plate and the angle of polaroid optical axis), polaroid angle β (referring to the optical axis of compensating plate and the angle of polaroid optical axis).
Embodiment
In liquid crystal display device, Ge collocation difference of thick d of the box of liquid crystal and refractive index Xiang Yi ⊿ n, need to cooperate the different offsets and the angle of polaroid, and the negative film liquid crystal cell (FSTN) that shows has different structure to select, only find their the best collocation, just the display effect that can realize ideal.Characteristics of the present utility model are to determine the thick and Ye Jing ⊿ n of liquid crystal cell, find the best offset and the angle of compensate film and polaroid on this basis.Make and show best contrast and viewing angle characteristic.
Fig. 1-the 3rd, the structural representation of just apparent film liquid crystal cell (white gravoply, with black engraved characters).It is made up of liquid crystal 1, glass 2, compensating plate 3, polaroid 4, and compensating plate is a slice, is positioned at a side of liquid crystal cell, and its parameter is as follows:
The thick d of the box of liquid crystal cell is 6um;
Ge is 0.14 Xiang Yi ⊿ n for the refractive index of liquid crystal;
The compensating plate angle is 0 °;
Offset is 575nm;
The polaroid angle is 40 °.
Fig. 4-the 7th, the negative structural representation that shows film liquid crystal cell (black matrix wrongly written or mispronounced character).It is made up of liquid crystal 1, glass 2, compensating plate 3, polaroid 4, and compensating plate is two, all is positioned at a side of liquid crystal cell, overlapping placement, and its parameter is as follows:
The thick d of the box of liquid crystal cell is 6um;
Ge is 0.14 Xiang Yi ⊿ n for the refractive index of liquid crystal;
A compensating plate angle is 105 °;
Another compensating plate angle is 135 °;
Offset is 575nm;
The polaroid angle is 170 °.
Claims (3)
1. liquid crystal display device with compensating plate, it is made up of liquid crystal cell, compensating plate [2], polaroid [3], it is characterized in that: the thick d of the box of described liquid crystal cell is 6um, the refractive index anisotropy of described liquid crystal
N is 0.14.
2. according to the liquid crystal display device of the described band compensating plate of claim 1, it is characterized in that: described compensating plate [2] is a slice, is positioned at a side of liquid crystal cell, and compensating plate angle [α] is 0 °, and offset is 575nm, and polaroid angle [β] is 40 °.
3. according to the liquid crystal display device of the described band compensating plate of claim 1, it is characterized in that: described compensating plate [2] is two, all is positioned at a side of liquid crystal cell, overlapping placement, two compensating plate angles [α] are respectively 105 ° and 135 °, and offset is 425nm, and polaroid angle [β] is 170 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200778412U CN201233484Y (en) | 2008-07-11 | 2008-07-11 | LCD device having compensating sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200778412U CN201233484Y (en) | 2008-07-11 | 2008-07-11 | LCD device having compensating sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233484Y true CN201233484Y (en) | 2009-05-06 |
Family
ID=40619866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200778412U Expired - Lifetime CN201233484Y (en) | 2008-07-11 | 2008-07-11 | LCD device having compensating sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233484Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105691A (en) * | 2013-01-30 | 2013-05-15 | 江苏亿成光电科技有限公司 | Color vertical arrangement type liquid crystal display (LCD) |
| CN103105700A (en) * | 2013-01-30 | 2013-05-15 | 江苏亿成光电科技有限公司 | Liquid crystal display |
| CN108873467A (en) * | 2017-05-12 | 2018-11-23 | 深圳市宇顺工业智能科技有限公司 | A kind of full dot matrix VA type monochrome LCD of high number and production method |
-
2008
- 2008-07-11 CN CNU2008200778412U patent/CN201233484Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105691A (en) * | 2013-01-30 | 2013-05-15 | 江苏亿成光电科技有限公司 | Color vertical arrangement type liquid crystal display (LCD) |
| CN103105700A (en) * | 2013-01-30 | 2013-05-15 | 江苏亿成光电科技有限公司 | Liquid crystal display |
| CN108873467A (en) * | 2017-05-12 | 2018-11-23 | 深圳市宇顺工业智能科技有限公司 | A kind of full dot matrix VA type monochrome LCD of high number and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |