CN102681256A - Low-power-consumption electronic price tag liquid crystal display (LCD) and process for manufacturing same - Google Patents
Low-power-consumption electronic price tag liquid crystal display (LCD) and process for manufacturing same Download PDFInfo
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- CN102681256A CN102681256A CN2012101117121A CN201210111712A CN102681256A CN 102681256 A CN102681256 A CN 102681256A CN 2012101117121 A CN2012101117121 A CN 2012101117121A CN 201210111712 A CN201210111712 A CN 201210111712A CN 102681256 A CN102681256 A CN 102681256A
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Abstract
The invention relates to a low-power-consumption electronic price tag liquid crystal display (LCD) and a process for manufacturing the low-power-consumption electronic price tag LCD. The low-power-consumption electronic price tag LCD comprises a composite film, a liquid crystal box and a polarizer from top to bottom; the liquid crystal box comprises an upper glass substrate, an upper PI orientation layer, a liquid crystal layer, a lower PI orientation layer and a lower glass substrate from top to bottom; and the liquid crystal box further comprises a frame adhesive used for sealing the upper PI orientation layer, the liquid crystal layer and the lower PI orientation layer. Compared with the prior art, the electronic price tag LCD has the advantages of wide temperature range, ultra-low power consumption, paper-white mode display, high contrast, readability under sunlight and excellent reliability under long-time driving condition. The electronic price tag LCD is used together with the MCU of an external control chip to input data into a COGIC through a serial interface (PIN). The screen of the electronic price tag LCD is controlled by a program through calculation, and the needed content is displayed on the screen of the electronic price tag LCD.
Description
Technical field
The present invention relates to a kind of display and manufacturing process thereof, particularly a kind of low power dissipation electron price tag LCD and manufacturing process thereof.
Background technology
In recent years; LCD has been widely used in the numerous areas of national economy and national defense safety; Along with science and technology and human living standard's continuous development, shortcoming such as traditional supermarket papery price tag is slow because of renewal speed, display message is few, replacing is frequent can not satisfy the gerentocratic demand in consumer and supermarket; And LCD is with the best substitute of advantage progressively becomes papery price tag such as low in energy consumption, slim body, in light weight and driving voltage be low; Through program input, the electronics price tag can completely show multi-aspect informations such as the price, the place of production, function, characteristic of commodity intuitively, and the consumer is come into plain view; Make the supermarket remove loaded down with trivial details price tag from and more change jobs, practiced thrift the cost of changing price tag in the long run.
Summary of the invention
Low power dissipation electron price tag LCD and the manufacturing process thereof that the purpose of this invention is to provide the white type of a kind of paper, can under 80 degree above freezing to subzero 30 degree environment, work; Utilize FSTN (Film Super Twisted Nematic; Film super twisted nematic) technology; Realize that wide visual angle, high-contrast show, have super low-power consumption, in light weight, volume is little, reliability is high, characteristics such as readable under the daylight light.
For realizing above-mentioned purpose, the present invention adopts following technical scheme to realize:
A kind of low power dissipation electron price tag LCD; Comprise liquid crystal cell; Liquid crystal cell is by the last ito glass substrate that is provided with from top to bottom, last PI oriented layer, wadding, liquid crystal layer, following PI oriented layer, following ito glass substrate; And be used to seal PI oriented layer, liquid crystal layer, the frame adhesive of PI oriented layer down; It is characterized in that be provided with the composite membrane that is composited at the compensate film of 550-650nm greater than 99% anti-dazzle polaroid and offset by degree of polarization at the liquid crystal cell upper surface, described compound angle is 35-55 °; Be provided with the polaroid of reflective-mode at the liquid crystal cell lower surface, the upper surface of said polaroid is provided with anti-dazzle photosphere, and the optical path difference of described polaroid and liquid crystal cell is 800-900nm, realizes that the paper white mode shows.
Liquid crystal in the described liquid crystal cell adopts low threshold value, low power consumption liquid crystal, its threshold voltage＜0.95V, static current of lcd＜1 μ A/cm
2
A kind of manufacturing process of low power dissipation electron price tag LCD may further comprise the steps:
1) etching flagpole pattern on last ito glass substrate and following ito glass substrate is formed dot matrix, and said upper and lower ito glass substrate adopts low square resistance ITO electropane material, and its thickness range is 0.55mm-1.1mm, and square resistance scope is 7 Ω/-15 Ω/;
2) be coated with the PI alignment agent in the ITO side of last ito glass substrate and following ito glass substrate respectively, use high electric charge conservation rate low-power consumption PI and insulation course, employing>=8000mj/cm
2The UV energy carry out the UV upgrading of insulation course, adopt 250-270 ℃ PI condition of cure, reduce the destroying infection Liquid Crystal Molecules Alignment of DC component to the PI oriented layer; , cooperate to be fit to friction condition with specific angle friction with the friction flannelette, make the PI oriented layer form groove, carry out the IPA washing after the friction, reduce the PI chip polluting in the liquid crystal cell;
3) at 5.0s-5.5s in the time; At last ito glass substrate surface spray diameter range is the wadding of 5.5 μ m-7.0 μ m, makes wadding be 100 every square millimeter-180 with density range and evenly distributes, and guarantees that thickness of liquid crystal box is between scope 5.5 μ m-7.0 μ m; Be coated with frame adhesive and leave a plurality of perfusing holes; Upper and lower PI oriented layer is orientated setting on request, accurately fits and goes up ito glass substrate and following ito glass substrate, forms liquid crystal cell;
4) in liquid crystal cell, pour into liquid crystal by perfusing hole, described liquid crystal adopts low threshold value, low power consumption liquid crystal, the threshold voltage＜0.95V of liquid crystal, static current of lcd＜1 μ A/cm
2
5) behind the envelope perfusing hole; Add the composite membrane that is composited with special angle at the compensate film of 550-650nm greater than 99% high-polarization anti-dazzle polaroid and offset by degree of polarization at the liquid crystal cell upper surface; Its compound angle is at 35-55 °, adds the polaroid of reflective-mode at the liquid crystal cell lower surface, reaches the paper white effect after described polaroid and the liquid crystal cell optical path difference coupling; Described polaroid and liquid crystal cell optical path difference realize that high-contrast shows between 800-900nm; And, make light at the LCD surface diffuse reflectance through adding anti-dazzle photosphere at the polaroid upper surface, realize under daylight, the light readable.
Compared with prior art, the invention has the beneficial effects as follows:
1) this electronics price tag display uses low threshold value, low power consumption liquid crystal, threshold voltage＜0.95V, static current of lcd＜1 μ A/cm
2, the product of 150mm*100mm (comprising LCD screen, COG IC, PIN pin, pcb board) total power consumption electric current is less than 140 μ A.
2) this electronics price tag LCD has higher reliability, and promptly 65 ℃-70 ℃ same picture continuous working 2 all askiatics are residual; 25 ℃ of left and right sides continuous workings of normal temperature are more than 2 years, and askiatic is residual.
3) this electronics price tag LCD, paper white mode show, realize paper white background black font, are different from the yellowish green background color black font or the grey background color black font of common LCD product, have more high-contrast, and daylight is readable high down.
Description of drawings
Fig. 1 is the structural representation of electronics price tag LCD.
Fig. 2 is the structural representation of electronics price tag LCD liquid crystal cell.
Among the figure: PI oriented layer 11-liquid crystal under the ito glass substrate 10-under the last PI oriented layer 6-liquid crystal layer 7-frame adhesive 8-wadding 9-of the last ito glass substrate 5-of 1-composite membrane 2-liquid crystal cell 3-polaroid 4-
Embodiment
Describe in further detail below in conjunction with the accompanying drawing specific embodiments of the invention.
See Fig. 1, Fig. 2; A kind of electronics price tag LCD; Comprise the composite membrane 1, liquid crystal cell 2, the polaroid 3 that are provided with from top to bottom; Liquid crystal cell comprises from top to bottom the last ito glass substrate 4 that is provided with, goes up PI oriented layer 5, liquid crystal layer 6, PI oriented layer 10, ito glass substrate 9 down down, also comprises the frame adhesive 7 that is used to seal PI oriented layer 5, liquid crystal layer 6, following PI oriented layer 10.Described liquid crystal layer 6 is made up of wadding 8 and liquid crystal; Wadding is 100 every square millimeter-180 with density range and evenly distributes that filled by liquid crystal, it uses liquid crystal to have low threshold value, low in power consumption on every side; Its threshold voltage＜0.95V, static current of lcd＜1 μ A/cm
2Described polaroid 3 is a composite membrane, and it constitutes degree of polarization and is composited with special angle 35-55 ° at the compensate film of 550-650nm greater than 99% high-polarization anti-dazzle polaroid and offset.Described liquid crystal layer is super-twist nematic (FSTN), and thickness range is 5.5 μ m-7.0 μ m.Described upper and lower ito glass substrate adopts ITO electropane material, and its thickness range is 0.55mm-1.1mm, and square resistance scope is 7 Ω/-15 Ω/.The use that matches with external control chip MCU of this LCD to COG IC input data, through calculating the screen by programmed control LCD, shows required content through serial line interface (PIN pin) on LCD display.
Described electronics price tag process for manufacturing liquid crystal display may further comprise the steps:
1) through the needs of client to displaying contents; How much are the dot matrix size of confirming electronics price tag LCD and pixel; Etching flagpole pattern on last ito glass substrate and following ito glass substrate is formed dot matrix respectively, and said upper and lower ito glass substrate adopts ITO electropane material; Its thickness range is 0.55mm-1.1mm, and square resistance scope is 7 Ω/-15 Ω/;
2) the ITO side at last ito glass substrate and following ito glass substrate is coated with the PI alignment agent; Use high electric charge conservation rate low-power consumption PI and TOP COATING (insulation course); The UV energy of employing >=8000mj/cm2 carries out the UV upgrading of TOP COATING (insulation course); Adopt 250-270 ℃ PI condition of cure, reduce the destroying infection Liquid Crystal Molecules Alignment of DC component the PI oriented layer; , cooperate to be fit to friction condition with specific angle friction with the friction flannelette, make the PI oriented layer form groove, carry out the IPA washing after the friction, reduce the PI chip polluting in the liquid crystal cell;
3) at 5.0s-5.5s in the time; At last ito glass substrate surface spray diameter range is the wadding of 5.5 μ m-7.0 μ m, makes wadding be 100 every square millimeter-180 with density range and evenly distributes, and guarantees that thickness of liquid crystal box is between scope 5.5 μ m-7.0 μ m; Be coated with frame adhesive and leave a plurality of perfusing holes; The particular orientation setting on request of upper and lower PI oriented layer is accurately fitted and is gone up ito glass substrate and following ito glass substrate, forms liquid crystal cell;
4) in liquid crystal cell, pour into liquid crystal by perfusing hole; It uses liquid crystal to have low threshold value, low in power consumption; When perfusion, use special white steel tank perfusion, nitrogen protection; To avoid causing liquid crystal pollution in the filling process, make it have higher reliability, can use 2 years residual demonstration problems that wait of askiatic at normal temperatures continuously;
5) behind the envelope perfusing hole; Add the composite membrane that is composited with special angle at the compensate film of 550-650nm greater than 99% high-polarization anti-dazzle polaroid and offset by degree of polarization at the liquid crystal cell upper surface; Its compound angle is at 35-55 °; Add the polaroid of reflective-mode at the liquid crystal cell lower surface, and reach paper white effect (optical path difference is between 800-900nm) after the liquid crystal molecule box optical path difference coupling, realize that high-contrast shows; And, make light at the LCD surface diffuse reflectance through adding anti-dazzle photosphere at the polaroid upper surface, realize under daylight, the light readable.
The above is merely the preferred embodiments of the present invention; Be not limited to the present invention; For a person skilled in the art, the present invention can have various changes and variation, and is all within spirit of the present invention and principle; Any modification of being done, be equal to replacement, improvement etc., all should be included in protection scope of the present invention.
Claims (3)
1. low power dissipation electron price tag LCD; Comprise liquid crystal cell; Liquid crystal cell is by the last ito glass substrate that is provided with from top to bottom, last PI oriented layer, wadding, liquid crystal layer, following PI oriented layer, following ito glass substrate; And be used to seal PI oriented layer, liquid crystal layer, the frame adhesive of PI oriented layer down; It is characterized in that be provided with the composite membrane that is composited at the compensate film of 550-650nm greater than 99% anti-dazzle polaroid and offset by degree of polarization at the liquid crystal cell upper surface, described compound angle is 35-55 °; Be provided with the polaroid of reflective-mode at the liquid crystal cell lower surface, the upper surface of said polaroid is provided with anti-dazzle photosphere, and the optical path difference of described polaroid and liquid crystal cell is 800-900nm, realizes that the paper white mode shows.
2. a kind of low power dissipation electron price tag LCD according to claim 1 is characterized in that, the liquid crystal in the described liquid crystal cell adopts low threshold value, low power consumption liquid crystal, its threshold voltage＜0.95V, static current of lcd＜1 μ A/cm
2
3. the manufacturing process of claim 1 or 2 described low power dissipation electron price tag LCDs is characterized in that, may further comprise the steps:
1) etching flagpole pattern on last ito glass substrate and following ito glass substrate is formed dot matrix, and said upper and lower ito glass substrate adopts low square resistance ITO electropane material, and its thickness range is 0.55mm-1.1mm, and square resistance scope is 7 Ω/-15 Ω/;
2) be coated with the PI alignment agent in the ITO side of last ito glass substrate and following ito glass substrate respectively, use high electric charge conservation rate low-power consumption PI and insulation course, employing>=8000mj/cm
2The UV energy carry out the UV upgrading of insulation course, adopt 250-270 ℃ PI condition of cure, reduce the destroying infection Liquid Crystal Molecules Alignment of DC component to the PI oriented layer; , cooperate to be fit to friction condition with specific angle friction with the friction flannelette, make the PI oriented layer form groove, carry out the IPA washing after the friction, reduce the PI chip polluting in the liquid crystal cell;
3) at 5.0s-5.5s in the time; At last ito glass substrate surface spray diameter range is the wadding of 5.5 μ m-7.0 μ m, makes wadding be 100 every square millimeter-180 with density range and evenly distributes, and guarantees that thickness of liquid crystal box is between scope 5.5 μ m-7.0 μ m; Be coated with frame adhesive and leave a plurality of perfusing holes; Upper and lower PI oriented layer is orientated setting on request, accurately fits and goes up ito glass substrate and following ito glass substrate, forms liquid crystal cell;
4) in liquid crystal cell, pour into liquid crystal by perfusing hole, described liquid crystal adopts low threshold value, low power consumption liquid crystal, the threshold voltage＜0.95V of liquid crystal, static current of lcd＜1 μ A/cm
2
5) behind the envelope perfusing hole; Add the composite membrane that is composited with special angle at the compensate film of 550-650nm greater than 99% high-polarization anti-dazzle polaroid and offset by degree of polarization at the liquid crystal cell upper surface; Its compound angle is at 35-55 °, adds the polaroid of reflective-mode at the liquid crystal cell lower surface, reaches the paper white effect after described polaroid and the liquid crystal cell optical path difference coupling; Described polaroid and liquid crystal cell optical path difference realize that high-contrast shows between 800-900nm; And, make light at the LCD surface diffuse reflectance through adding anti-dazzle photosphere at the polaroid upper surface, realize under daylight, the light readable.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914894A (en) * | 2012-09-24 | 2013-02-06 | 亚世光电股份有限公司 | Negative liquid crystal display for no-backlight state |
| CN103048821A (en) * | 2012-12-28 | 2013-04-17 | 亚世光电股份有限公司 | Polaroid-free VA (vertical alignment) liquid crystal display and manufacturing process thereof |
| CN103676326A (en) * | 2013-12-10 | 2014-03-26 | 合肥京东方光电科技有限公司 | Color film substrate, display panel and display device |
| CN106292053A (en) * | 2016-10-31 | 2017-01-04 | 亚世光电（鞍山）有限公司 | A kind of VA type high density display lattice lcd display |
| CN107481691A (en) * | 2017-08-31 | 2017-12-15 | 京东方科技集团股份有限公司 | A kind of voltage compensating method and device |
| 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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| CN102193235A (en) * | 2011-05-20 | 2011-09-21 | 鞍山亚世光电显示有限公司 | 3D optical barrier type liquid crystal display and manufacturing process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914894A (en) * | 2012-09-24 | 2013-02-06 | 亚世光电股份有限公司 | Negative liquid crystal display for no-backlight state |
| CN102914894B (en) * | 2012-09-24 | 2015-04-08 | 亚世光电股份有限公司 | Negative liquid crystal display for no-backlight state |
| CN103048821A (en) * | 2012-12-28 | 2013-04-17 | 亚世光电股份有限公司 | Polaroid-free VA (vertical alignment) liquid crystal display and manufacturing process thereof |
| CN103676326A (en) * | 2013-12-10 | 2014-03-26 | 合肥京东方光电科技有限公司 | Color film substrate, display panel and display device |
| CN106292053A (en) * | 2016-10-31 | 2017-01-04 | 亚世光电（鞍山）有限公司 | A kind of VA type high density display lattice lcd 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 |
| CN107481691A (en) * | 2017-08-31 | 2017-12-15 | 京东方科技集团股份有限公司 | A kind of voltage compensating method and device |
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Owner name: YASHI OPTOELECTRONICS CO., LTD. Free format text: FORMER OWNER: ANSHAN YES OPTOELECTRONICS DISPLAY CO., LTD. Effective date: 20120830 |
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Effective date of registration: 20120830 Address after: 114031 No. 196 Qianshan Middle Road, Liaoning, Anshan Applicant after: Yashi Photoelectric Co.,Ltd. Address before: 114031, No. 215, Qianshan Road, hi tech Zone, Liaoning, Anshan Applicant before: Anshan Yes Optoelectronics Display Co., Ltd. |
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Application publication date: 20120919 |