CN101639578A - Liquid crystal lens made of photochromic resin material and production method thereof - Google Patents

The invention discloses a liquid crystal lens made of a photochromic resin material and a preparation method thereof. The liquid crystal lens comprises a photochromic resin lens (1), a transparent resin lens (5), extraction electrodes (6) and a sealant (7), wherein the photochromic resin lens (1) and the transparent resin lens (5) are flatly adhered to form a lens box with a 5 to 10mum gap in between. The middle of the lens box is filled with liquid crystal and then sealed and connected to form a whole photochromic resin liquid crystal lens which has a certain curve radian and is filled with guest host liquid crystal (4). The production method comprises evaporation, curing, sealing, packaging and filling. The lens of the invention has high transparency, excellent light blocking effect andis suitable to be used in all kinds of weather. Under the condition that the lens has no dimming, the visible light transmission of the lens is over 77 percent, the ultraviolet ray blocking rate is over 99 percent, and the lens can quickly restore transparency within 0.1s.

The liquid crystal lens and the production method thereof that adopt photochromic resin material to make

Technical field

The present invention relates to liquid crystal and make the field, in particular a kind of curved surface liquid crystal lens and production method thereof that adopts photochromic resin material to make.

Background technology

Now several eyeglass of usefulness such as black lens, polarized lenses and photochromic lens etc. are exercised because the material of its intrinsic purposes and use determines to play by day the anti-glare effect that keeps the sun off in the upper reaches, market, and night black lens and polarized lenses can not use owing to its visibility is too low.The photochromic lens transparency is very high; wear at night and to get a clear view; but because its principle of work is to be subjected to ultraviolet ray excited and variable color; the various light sources of night illumination seldom send ultraviolet radiation; do not possess the variable color condition and be in pellucidity, can't play the anti-glare effect of blocking high light protection human eye.

From present existing liquid crystal manufacturing materials and technology and purposes: what present liquid crystal lens generally adopted is that the planar optics glass material is made, for example using at televisor, computer monitor, counter, electronic watch and the chromatic liquid crystal screen on MP4 amusement form glasses, all is to adopt sheet glass liquid crystal manufacturing technology basically.Use photochromic resin material to make liquid crystal lens and be that the technology that is made into the liquid crystal lens of certain crooked radian has never seen relevant report with product.

For example: the manufacture method and the eyeglass thereof of Chinese patent 00131159.X photochromic resin lens; The manufacture method of the patent No. 200610116471.4 compound photochromic resin lens and No. 200710093831.8 patents: all proposed the factory formula and the method for photochromic lens in the relevant patent of series such as manufacture method with membrane process production photochromic resin lens, but all do not related to the method for manufacturing liquid crystal lens with photochromic lens.Chinese patent relates to the method that adopts photochromic resin material to make plane liquid crystal, cambered surface liquid crystal cell of mentioning in all liquid crystal cell method for makings of liquid crystal processing and fabricating.

Summary of the invention

At above deficiency, the object of the present invention is to provide a kind of curved surface liquid crystal lens that uses photochromic resin material to make, when this eyeglass is gone out by day, utilize the ultraviolet ray realization in the sunlight photochromic, the back colour killing recovers transparent thereupon in the inlet chamber; Night, under the driving of control circuit, utilize the twisted effect of perfusion liquid crystal in the eyeglass to produce variable color when running into high light, realization is blocked fast to high light, plays preventing to dazzle the eyes, and avoids people's eye damage.

Technical scheme

Technical scheme of the present invention realizes in the following manner: a kind of liquid crystal lens that adopts photochromic resin material to make comprises photochromic resin lens, transparent resin eyeglass, extraction electrode, fluid sealant; Photochromic resin lens and transparent resin eyeglass be smooth to be bonded into the eyeglass box that the 5-10um gap is left in a centre, be tightly connected behind the perfusion liquid crystal in the middle of the eyeglass box, form a complete photochromic resin liquid crystal lens, it is characterized in that: the brilliant eyeglass of described photochromic resin is to have certain crooked radian, and perfusion is the guest-host type compound liquid-crystal in the eyeglass.

The inside surface of above-mentioned photochromic resin lens and transparent resin eyeglass all is coated with the ITO conductive layer that uses the tin indium oxide alloy and evenly applies one deck polyimide alignment layers again on conductive layer.

The liquid crystal of can is the guest-host type liquid crystal that contains negative dichroic dye in the above-mentioned liquid crystal lens, and the color of dyestuff can be mixed with: multiple colors such as red, yellow, blue, green, grey, black, tea, coffee color.

Above-mentioned liquid crystal lens is installed the conductive electrode of control liquid crystal color-changing in a side of eyeglass.

A kind of production method that adopts the liquid crystal lens of photochromic resin material making may further comprise the steps:

1), evaporation: the inside surface of photochromic resin lens and transparent resin eyeglass is plated the ITO conductive layer that uses indium stannum alloy with vapour deposition method, on conductive layer, evenly apply one deck polyimide alignment layers with the coated method again;

2), solidify: under 80 ℃ of temperature, solidified 6 hours, take out back friction orientation respectively;

3), sealing: print fluid sealants two eyeglass inner peripheral behind the cleaning, drying, be sealed to a centre and leave the Integrated lens in 5-10um space and reserve the liquid crystal filling mouth two eyeglasses are superimposed then, heating to 60 ℃ kept 2-4 hour;

4), can: put into after the adhesive curing to be sealed and take out after vacuum liquid crystal bottle placer is filled the guest-host type liquid crystal, the sealing filling exit, reserved location install control electrode liquid crystal lens.

Above-mentioned guest-host type liquid crystal is mixed by liquid crystal and negative two-phase look dyestuff.

Adopt the present invention to make the photochromic resin material liquid crystal lens, has the transparency height, it is effective to be in the light, be fit to round-the-clock use, the constant light time of eyeglass, visible light transmissivity is greater than 77%, and ultraviolet ray stops rate 〉=99%, eyeglass recovers transparent rapidly at 0.1s in the time, do not influence the clear observation of night to road ahead.

Can be below in conjunction with accompanying drawing to the detailed in addition explanation of embodiments of the invention.

Description of drawings

Fig. 1 is the section of structure of photochromic liquid crystal lens.

Fig. 2 is the photochromic resin material eyeglass schematic diagram that is in the light.

Fig. 3, the 4th, guest-host type liquid crystal principle schematic that is in the light.

Among the figure: 1, photochromic resin lens, 2, the ITO conductive layer, 3, polyimide alignment layers, 4, the guest-host type liquid crystal, 5, the transparent resin eyeglass, 6, control electrode, 7, fluid sealant.

Embodiment

Know by Fig. 4, it is the guest-host type liquid crystal principle schematic that is in the light, when control circuit applies voltage for the potpourri of dyestuff and liquid crystal, the orientation of liquid crystal molecule will deflect, and distortion changes and the orientation of drive dye molecule changes, generation is to incident light absorption in various degree, the incident ray of having decayed sees through intensity, realized partial occlusion to strong light, played certain anti-glare effect, after high light disappeared, light-operated circuit was closed, and control voltage is also eliminated thereupon, eyeglass recovers transparent rapidly at 0.1s in the time, do not influence the clear observation of night to road ahead.

A kind of production method that adopts the liquid crystal lens of photochromic resin material making of the present invention may further comprise the steps:

1), evaporation: the inside surface of photochromic resin lens and transparent resin eyeglass is plated the ITO conductive layer that uses indium stannum alloy with vapour deposition method, on conductive layer, evenly apply one deck polyimide alignment layers with the coated method again;

2), solidify: under 80 ℃ of temperature, solidified 6 hours, carry out vertical, horizontal 90 ℃ of staggered friction orientations after the taking-up;

3), sealing: print fluid sealants two eyeglass inner peripheral behind the cleaning, drying, be sealed to a centre and leave the Integrated lens in 5-10um space and reserve the liquid crystal filling mouth two eyeglasses are superimposed then, heating to 60 ℃ kept 2-4 hour;