CN202433642U - Passive drive liquid crystal display - Google Patents
Passive drive liquid crystal display Download PDFInfo
- Publication number
- CN202433642U CN202433642U CN201220044952XU CN201220044952U CN202433642U CN 202433642 U CN202433642 U CN 202433642U CN 201220044952X U CN201220044952X U CN 201220044952XU CN 201220044952 U CN201220044952 U CN 201220044952U CN 202433642 U CN202433642 U CN 202433642U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- polaroid
- transparent electrode
- crystal display
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a passive drive liquid crystal display, comprising a front polarizer, a front transparent electrode base plate, a front orientation layer, a liquid crystal layer, a rear orientation layer, a rear transparent electrode base plate and a rear polarizer which are sequentially arranged from front to back; plastic balls are arranged in the liquid crystal layer; frame sealant for sealing is printed between the front transparent electrode base plate and the rear transparent electrode base plate and at the periphery of the front transparent electrode base plate and the rear transparent electrode base plate respectively; the front orientation layer and the rear orientation layer both are vertical orientation layers capable of arraying liquid crystal molecules vertically. The liquid crystal display has the advantages that 1, the contrast is high, and the vision angle is wide, and the contrast is as high as 500:1, and the up-down vision angle can reach 120 degrees, and the vision angle from the left to right can reach 120 degrees; 2, the response is fast, and the tailing phenomenon is avoided; and 3, the evenness of the word display is good, and the pitting phenomenon is avoided, so that the yield is enhanced, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of LCD, specifically a kind of passive drive liquid crystal display.
Background technology
LCD is divided into active driven liquid crystal display and passive drive liquid crystal display; Wherein mainly comprise three terminal device type LCD (being called for short TFT) in the active driven liquid crystal display; TFT has the contrast height; The characteristics that the visual angle is broad mainly are applied on the large screen display such as LCD TV computer, but owing to know complex process, the shortcoming that cost is high; On undersized display, be difficult to obtain promote; And the passive drive liquid crystal display should be widely used on small-size liquid crystal displays with the low advantage of cost so that manufacturing process is simple, but because there is the shortcoming of the not high and narrow viewing angle of contrast in common passive drive liquid crystal display, the passive drive liquid crystal display is difficult to be applied on the demanding small-size product of contrast and visual angle.
Present vertical orientation (Vertically aligned; Abbreviation VA) technology is used on the passive drive liquid crystal display; Polaroid, front and back transparency carrier, vertical orientated layer and liquid crystal layer before and after the VA LCD mainly comprises; The front and back polaroid is at the entire product outermost layer, and glass substrate, front and back are vertical orientated layer before and after being disposed with from outside to inside, and the middle layer is negative anisotropic liquid crystal layer.The distortion angle that frictional direction constituted of the vertical orientated layer in above-mentioned front and back is 0 degree, liquid crystal molecule homeotropic alignment when not powering up, and background color appears complete black, and the middle layer liquid crystal molecule has certain inclination to swing to when powering up, and have light to pass through this moment, can realize the demonstration of word.This VA mode LCD contrast is high; The visual angle broad, but because its friction process requires height, the serious problems that when production technology fluctuates, can occur trailing to consistance and accuracy; In addition in friction process; Also possibly cause the generation of pit because of the introducing of foreign matters such as dust particle, this just makes the product yield reduce, and is not easy to produce.
The utility model content
Goal of the invention: in order to overcome the deficiency of prior art, the purpose of the utility model is to provide a kind of can solve hangover and the bad problem of pit, has high-contrast, wide visual angle, response soon, be easy to the passive drive liquid crystal display producing, reduce cost.
Technical scheme: in order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of passive drive liquid crystal display; By setting gradually preceding polaroid, preceding transparent electrode substrate, preceding oriented layer, liquid crystal layer, back oriented layer, back transparent electrode substrate, back polaroid behind the forward direction; In said liquid crystal layer, be provided with the plastic cement ball; Between preceding transparent electrode substrate and the back transparent electrode substrate and around be printed with the frame adhesive that the sealing liquid crystal is used, said before oriented layer all are the vertical orientated oriented layers that can make the liquid crystal molecule homeotropic alignment with back oriented layer.
Homeotropic alignment when adopting vertical orientated oriented layer that liquid crystal molecule is not powered up, powering up liquid crystal middle layer, back has certain inclination or angled distortion, to reach high-contrast and wide visual angle.
As the improvement of the utility model, the development etching forms electrode pattern on every said transparent electrode substrate.
In order to improve contrast, widen angular field of view and limited range, said before vertical orientated oriented layer and back between the vertical orientated oriented layer frictional direction and the distortion angle that constitutes comprises 90 °, 180 ° or 270 °.
For consistance and the stability of strengthening liquid crystal aligning, solve to show bad problems such as hangover and pit, said liquid crystal be the negative permittivity anisotropic liquid crystal or with the potpourri of chiral dopant, liquid crystal dielectric anisotropy value comprises between-2～-10; When said liquid crystal was the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant, said chiral dopant was that chipal compounds comprises cholesteryl compound, and the chiral dopant consumption is 0.05～2% of a liquid crystal weight.
The thickness of said liquid crystal layer is 2～6 μ m; Doing like this is the scope that limits practical application, reaches the utility model liquid crystal display pattern easily.
Amassing between 200～500nm of the anisotropy of the refractive index of said liquid crystal layer and thickness; Doing like this is the scope that limits practical application, reaches this patent liquid crystal display pattern easily.
In order to realize full black matrix look, the visual angle is broad, and said preceding polaroid includes a kind of special polaroid that has the fixed compensation phase place with the back polaroid, and phase compensation value is between 100-500nm; The polarizing axis quadrature setting of two polaroids and to become 45 ° of angles, the angle between the polaroid of front and back be 90 degree with frictional direction.
Beneficial effect: compared with prior art, the utility model has the advantages that: 1) contrast is high, the visual angle is broad, and wherein contrast can reach 500:1; The visual angle can reach next 90 °, about 120 ° scope; 2) response is fast, can solve conditions of streaking; 3) font shows that homogeneity is good, can solve the pit phenomenon, improves the product yield, reduces production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify.
Embodiment 1: as shown in Figure 1; A kind of passive drive liquid crystal display; Comprise keeping the preset distance preceding transparent electrode substrate 2 and the back transparent electrode substrate 4 of configuration relatively, between preceding transparent electrode substrate 2 and back transparent electrode substrate 4, be perfused with the liquid crystal layer 8 of the anisotropy of specific inductive capacity for negative liquid crystal formation; Vertical orientated oriented layer 6 before being provided with between electrode on preceding transparent electrode substrate 2 and the liquid crystal layer 8 is provided with the vertical orientated oriented layer 9 in back between electrode on the transparent electrode substrate 4 of back and liquid crystal layer 8, in liquid crystal layer 8 and between two oriented layers, be provided with the plastic cement ball; Polaroid 1 before the outside of preceding transparent electrode substrate 2 is attached with, and the polarizing axis of polaroid 5, two polaroids is arranged in a crossed manner each other after the outside of back transparent electrode substrate 4 is attached with; Preceding transparent electrode substrate 2 and the back transparent electrode substrate 4 between and around be printed with the frame adhesive 3,7 that the sealing liquid crystal is used.If the electrode on the preceding transparent electrode substrate 2 is a pixel electrode; Then the electrode on the transparent electrode substrate 4 of back is a comparative electrode; If the electrode on the transparent electrode substrate 4 of back is a pixel electrode; Electrode on the then preceding transparent electrode substrate 2 is a comparative electrode, preceding like this transparent electrode substrate 2 and the back transparent electrode substrate 4 interior electrode of opposite that form.
Wherein, preceding transparent electrode substrate 2 all adopts tin indium oxide (ITO) glass with back transparent electrode substrate 4, and the development etching forms electrode pattern on every transparent electrode substrate; Before vertical orientated oriented layer 6 and back between the vertical orientated oriented layer 9 frictional direction and the distortion angle that constitutes is any in 90 °, 180 ° or 270 °.
Liquid crystal is the negative permittivity anisotropic liquid crystal, or is the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant, and liquid crystal dielectric anisotropy value is-5.3; Liquid crystal is the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant, and wherein chiral dopant is that chipal compounds comprises cholesteryl compound S811, and the chiral dopant consumption is 0.1% of a liquid crystal weight.The thickness of liquid crystal layer 8 is 3 μ m; The anisotropy of the refractive index of liquid crystal layer 8 and thickness long-pending (d* △ n) are 270nm; Preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 135nm; Preceding polaroid 1 becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid 5 and with frictional direction, the angle between preceding polaroid 1 and the back polaroid 5 is 90 degree; The diameter of plastic cement ball is preferably 3 um.
The preparation method's of aforementioned display device concrete steps are following:
1,, forms the ITO pattern with ITO transparency carrier development etching;
2, on preceding transparent electrode substrate 2 and back transparent electrode substrate 4, be coated with the vertical orientated special-purpose oriented layer of SE-4811 of Nissan respectively;
3, it is directed to solidify the back friction, direction according to become 90 °, or 180 °, or 270 ° of twist angles and rubbing;
4, printing frame adhesive 3,7, the middle 3um plastic cement ball that sprays, applying hot pressing, it is thick to process stable box;
5, irritate the brilliant HNG702600-100 negative dielectric anisotropy liquid crystal of selecting Hecheng Chemical Material Co., Ltd., Jiangsu;
6, the phase compensation polaroid that is complementary of use and liquid crystal layer 8 optical path differences, phase-delay value is 135nm;
The collocation of, polaroid thick through the vertical orientated oriented layer of preceding vertical orientated oriented layer 6, back 9, rubbing angle, liquid crystal layer 8, box and polaroid angle makes the display part not light full black matrix look, and contrast is high when lighting, and the response time is short, shows homogeneous.
Embodiment 2: basic identical with embodiment 1, different is: liquid crystal is the negative permittivity anisotropic liquid crystal, and liquid crystal dielectric anisotropy value is-2; The thickness of liquid crystal layer 8 is 2 μ m; The anisotropy of the refractive index of liquid crystal layer 8 and thickness long-pending (d* △ n) are 200nm; Preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 100 nm; Preceding polaroid 1 becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid 5 and with frictional direction, the angle between preceding polaroid 1 and the back polaroid 5 is 90 degree; The diameter of plastic cement ball is preferably 2um.
Embodiment 3: basic identical with embodiment 1, different is: liquid crystal is the negative permittivity anisotropic liquid crystal, and liquid crystal dielectric anisotropy value is-10; The thickness of liquid crystal layer 8 is 6 μ m; The anisotropy of the refractive index of liquid crystal layer 8 and thickness long-pending (d* △ n) are 500nm; Preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 500 nm; Preceding polaroid 1 becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid 5 and with frictional direction, the angle between preceding polaroid 1 and the back polaroid 5 is 90 degree; The diameter of plastic cement ball is preferably 6um.
Embodiment 4: basic identical with embodiment 1, different is: liquid crystal is the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant, and liquid crystal dielectric anisotropy value is-7.5; Chiral dopant is that chipal compounds comprises cholesteryl compound S811, and the chiral dopant consumption is 2% of a liquid crystal weight.The thickness of liquid crystal layer 8 is 4 μ m; The anisotropy of the refractive index of liquid crystal layer 8 and thickness long-pending (d* △ n) are between 330nm; Preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 250 nm; Preceding polaroid 1 becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid 5 and with frictional direction, the angle between preceding polaroid 1 and the back polaroid 5 is 90 degree; The diameter of plastic cement ball is preferably 4um.
Embodiment 5: basic identical with embodiment 4, different is: liquid crystal dielectric anisotropy value is-3.6; Chiral dopant is that chipal compounds comprises cholesteryl compound S811, and the chiral dopant consumption is 0.05% of a liquid crystal weight.The thickness of liquid crystal layer 8 is 5 μ m; The anisotropy of the refractive index of liquid crystal layer 8 and thickness long-pending (d* △ n) are between 460nm; Preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 380 nm; Preceding polaroid 1 becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid 5 and with frictional direction, the angle between preceding polaroid 1 and the back polaroid 5 is 90 degree; The diameter of plastic cement ball is preferably 5um.
Embodiment 6: basic identical with embodiment 5, different is: preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 420 nm.
Embodiment 7: basic identical with embodiment 5, different is: preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 460nm.
Embodiment 8: basic identical with embodiment 5, different is: preceding polaroid 1 includes a kind of special polaroid that has the fixed compensation phase place with back polaroid 5, and phase compensation value is 500 nm.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (8)
1. passive drive liquid crystal display; It is characterized in that; By setting gradually preceding polaroid (1), preceding transparent electrode substrate (2), preceding oriented layer (6), liquid crystal layer (8), back oriented layer (9), back transparent electrode substrate (4), back polaroid (5) behind the forward direction; In said liquid crystal layer (8), be provided with the plastic cement ball; Between preceding transparent electrode substrate (2) and back transparent electrode substrate (4) and around be printed with the frame adhesive (3,7) that the sealing liquid crystal is used, said before oriented layer (6) and back oriented layer (9) all are the vertical orientated oriented layers that can make the liquid crystal molecule homeotropic alignment.
2. passive drive liquid crystal display according to claim 1 is characterized in that, the development etching forms electrode pattern on every said transparent electrode substrate.
3. passive drive liquid crystal display according to claim 2 is characterized in that, said before between vertical orientated oriented layer (6) and the back vertical orientated oriented layer (9) frictional direction and the distortion angle that constitutes comprises 90 °, 180 ° or 270 °.
4. passive drive liquid crystal display according to claim 1 is characterized in that, said liquid crystal is the negative permittivity anisotropic liquid crystal, perhaps is the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant; Liquid crystal dielectric anisotropy value comprises between-2～-10.
5. passive drive liquid crystal display according to claim 1; It is characterized in that; When said liquid crystal is the potpourri of negative permittivity anisotropic liquid crystal and chiral dopant; Said chiral dopant is that chipal compounds comprises cholesteryl compound, and the chiral dopant consumption is 0.05～2% of a liquid crystal weight.
6. passive drive liquid crystal display according to claim 1 is characterized in that, the thickness of said liquid crystal layer (8) is 2～6 μ m.
7. passive drive liquid crystal display according to claim 1 is characterized in that, the anisotropy of refractive index of said liquid crystal layer (8) and amassing between 200～500nm of thickness.
8. passive drive liquid crystal display according to claim 1 is characterized in that, said preceding polaroid (1) and back polaroid (5) include a kind of special polaroid that has the fixed compensation phase place, and phase compensation value is between 100-500 nm; Preceding polaroid (1) becomes 45 ° of angles with the polarizing axis quadrature setting of back polaroid (5) and with frictional direction, the angle between preceding polaroid (1) and the back polaroid (5) is 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220044952XU CN202433642U (en) | 2012-02-13 | 2012-02-13 | Passive drive liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220044952XU CN202433642U (en) | 2012-02-13 | 2012-02-13 | Passive drive liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433642U true CN202433642U (en) | 2012-09-12 |
Family
ID=46783078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220044952XU Expired - Lifetime CN202433642U (en) | 2012-02-13 | 2012-02-13 | Passive drive liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100885A (en) * | 2018-11-09 | 2018-12-28 | 深圳秋田微电子股份有限公司 | A kind of passive drive liquid crystal display and passive drive liquid crystal display module |
-
2012
- 2012-02-13 CN CN201220044952XU patent/CN202433642U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100885A (en) * | 2018-11-09 | 2018-12-28 | 深圳秋田微电子股份有限公司 | A kind of passive drive liquid crystal display and passive drive liquid crystal display module |
| WO2020093540A1 (en) * | 2018-11-09 | 2020-05-14 | 深圳秋田微电子股份有限公司 | Passive-matrix liquid crystal display and passive-matrix liquid crystal display module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI531838B (en) | Horizontal electric-field type liquid crystal display device, liquid crystal retard panel emitted after changing polarization axis of incident light and manufacturing method therefor | |
| CN101308279B (en) | Liquid crystal display device | |
| CN103305232B (en) | Nematic phase liquid crystal composition | |
| CN1912660B (en) | Polarizing film and display device having the same | |
| US9638959B2 (en) | Liquid crystal display panel and liquid crystal display device | |
| KR101664981B1 (en) | Display device having the nano-sized lc layer | |
| US11137656B1 (en) | Flexible bistable light modulating device | |
| CN104297997B (en) | Liquid crystal display panel, and display method and display device thereof | |
| US20130329151A1 (en) | Liquid crystal panel, manufacturing process and display device thereof | |
| CN101852942A (en) | Total-reflection liquid crystal display | |
| CN105785657A (en) | All-viewing-angle blind-zone-free liquid crystal display | |
| CN202615080U (en) | Colored passive-driven liquid crystal display (LCD) | |
| JP2007233162A (en) | Polarizing plate having novel orientation and liquid crystal display | |
| CN202433642U (en) | Passive drive liquid crystal display | |
| WO2021232481A1 (en) | Optical film, and manufacturing method and application of optical film | |
| CN103048831B (en) | Manufacturing process for passive multidomain VA (vertical alignment) type liquid crystal display | |
| CN104407411A (en) | Polarizer, liquid crystal display screen and liquid crystal display device | |
| CN202285073U (en) | Color film substrate and display panel | |
| CN1127672C (en) | Reflection liquid crystal display device | |
| JP2003255347A (en) | Liquid crystal display and production method thereof | |
| CN103207478B (en) | Liquid crystal panel with electric field controlled birefringence mode and liquid crystal display device thereof | |
| CN202453604U (en) | Liquid crystal display (LCD) with high reliability and high contrast | |
| CN104635365A (en) | Dye liquid crystal display | |
| CN202494842U (en) | Perpendicular-orientation pi box liquid crystal display | |
| CN203084378U (en) | Passive-type multi-domain VA-type liquid crystal displayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 01, 212400 west side of West Ring Road, Jurong Economic Development Zone, Jiangsu, Zhenjiang Province, 1-3 Patentee after: JIANGSU JUNCHENG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 212400 Jurong Chun Cheng Electronics Co., Ltd., No. 18, West Ring Road, Jurong Economic Development Zone, Jiangsu, Zhenjiang Patentee before: Jurong Smartwin Electronics Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |