KR20170056977A - Electro-chromic system for eyewear - Google Patents

Electro-chromic system for eyewear Download PDF

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Publication number
KR20170056977A
KR20170056977A KR1020150160510A KR20150160510A KR20170056977A KR 20170056977 A KR20170056977 A KR 20170056977A KR 1020150160510 A KR1020150160510 A KR 1020150160510A KR 20150160510 A KR20150160510 A KR 20150160510A KR 20170056977 A KR20170056977 A KR 20170056977A
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KR
South Korea
Prior art keywords
lcd
transmittance
lens
unit
illuminance
Prior art date
Application number
KR1020150160510A
Other languages
Korean (ko)
Inventor
박수안
Original Assignee
주식회사 스포컴
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 스포컴 filed Critical 주식회사 스포컴
Priority to KR1020150160510A priority Critical patent/KR20170056977A/en
Priority to PCT/KR2016/001668 priority patent/WO2017086542A1/en
Publication of KR20170056977A publication Critical patent/KR20170056977A/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/10—Electronic devices other than hearing aids
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Nonlinear Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Eyeglasses (AREA)
  • Liquid Crystal (AREA)
  • Acoustics & Sound (AREA)
  • Otolaryngology (AREA)

Abstract

The present invention relates to a functional electrochromic eyewear allowing a user to operate a discoloration speed and a discolored amount of an eyewear lens, and electrically adjusting a transmittance of the lens in accordance with illuminance without reacting to ultraviolet (UV) to perform a further accurate discoloration function. The functional electrochromic eyewear comprises: a liquid crystal display (LCD) part formed on one surface of a lens, and electrically discolored to adjust transmittance; and a power supply part supplying operation power to the LCD part. The LCD part is in a twisted nematic (TN) type, and has a flexible polarizing film-shape; and the LCD part preferably includes an anti-fog (AF) film. Moreover, the functional electrochromic eyewear further comprises: an illuminance sensor sensing surrounding illuminance; and a control part controlling the transmittance of the LCD part in accordance with detection of the illuminance sensor, adjusting the speed and amount of discoloration in accordance with the users settings.

Description

[0001] Electro-chromic system for eyewear [

The present invention relates to a functional electrochromic eye wearer, and more particularly, to a functional electrochromic eye wearer which electrically adjusts the transmittance of a lens by applying an LCD (Liquid Crystal Display).

In the present invention, eyewear refers to all products having a lens to be worn on the eye, such as ski goggles, sports glasses, security glasses, sunglasses.

In general, eyewear products use lenses that lower the transmittance of the lens to avoid exposure to bright sunlight. For example, the lens is colored and used to mirror the surface of the lens to reduce the light transmittance, thereby preventing glare.

However, the fixed transmittance is required for a bright day, but there is a disadvantage that nearby objects are not easily seen due to low transmittance on a dark day or evening. To overcome this disadvantage, techniques have been developed that use photochromic lenses.

The color change material has a property that when the sunlight is strongly exposed, more specifically, when the UV intensity is high, the transmittance is changed while the molecular structure is activated as shown in FIG. When this material is impregnated into a lens or a film is formed on the surface of the lens in the form of a coating, the lens is darkened and brighter according to the brightness of light (UV intensity).

However, such a conventional discoloration technique has the following problems.

First, the degree of discoloration, that is, the amount of discoloration, can not be manipulated by the user. Therefore, although a user may prefer a brighter lens on a bright day depending on the user, the conventional discoloration lens has a problem in that the preset discoloration amount can not be changed.

In addition, the time required for changing the transmittance of the color-changing lens is from 3 minutes to 10 minutes. That is, when the lens is moved from the outside to the room, the lens is kept in a dark state for a considerable length of time, which is inconvenient for use.

In addition, since it is a UV-responsive product, it has a problem that it reacts with a part of the room lighting.

Korean Patent Publication No. 10-1340513 (December 05, 2013)

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-described problems of the prior art, and it is an object of the present invention to provide a liquid crystal display device capable of operating a color change speed and a color fading amount of a lens by using a LCD, And to provide a functional electrochromic eye wear which performs a more accurate discoloration function.

According to an aspect of the present invention, An LCD unit formed on one surface of the lens to change the transmittance by electrically discoloring; And a power supply unit for supplying operating power to the LCD unit.

The LCD unit is preferably a TN (Twisted Nematic) driving type LCD.

Preferably, the LCD unit is a polarizing film that is flexible, and the polarizing film is a polarizing film having a transmittance of 55% or more while maintaining the polarity efficiency of the LCD unit at 65% to 70%.

It is more preferable that the LCD unit includes an AF (anti-fog) film.

Further, a light intensity sensor for sensing the ambient illuminance; And a controller for controlling the transmittance of the LCD unit according to the detection of the illuminance sensor, and adjusting the color change rate and the color change amount according to the setting of the user.

The controller may turn on or off the operation of the LCD unit when there is a change in illuminance over a reference value according to the detection of the illuminance sensor.

The controller may adjust the DUTY ratio using a pulse-width modulator (PWM) control method to adjust the transmittance of the LCD and form a plurality of transmittances between a predetermined maximum brightness and a minimum brightness.

According to the functional electrochromic eyewear of the present invention configured as described above, it is possible to manipulate the color change speed and the color change amount of the lens by the user, and to adjust the transmittance of the lens electrically according to the illuminance without reacting with UV There is an effect that the discoloration function can be effectively controlled.

1 is a view showing a molecular structure activation state according to a change in UV intensity of a coloring material,
2 is a perspective view showing the functional electrochromic eye wear according to the present invention,
FIG. 3 is a block diagram showing a control apparatus for functional electrochromic eye wear according to the present invention;
4 is a diagram illustrating an operation mechanism of a TN driving type LCD according to the present invention,
5 is a view showing various forms of sunglasses as another embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. In the following description of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the present invention may be blurred.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing a functional electrochromic eyewear according to the present invention, FIG. 3 is a block diagram showing a control apparatus of functional electrochromic eye wear according to the present invention, FIG. 4 is a view showing an operation mechanism Fig.

As shown in the figure, the functional electrochromic eyewear according to the present invention includes a lens 100, an LCD unit 200, an illuminance sensor 300, a controller 400, and a power unit 600.

The lens 100 of the present invention has a single lens (Single LENS) structure.

The LCD unit 200 is formed on one side of the lens 100 and is electrically discolored to adjust transmittance.

The power supply unit 500 supplies operating power to the LCD unit 200. For this, the power source unit 500 is preferably composed of a battery.

Here, it is preferable that the LCD unit 200 is applied with a TN driving LCD technology.

The electrochromic (electrochromic) of the present invention is a technology using an LCD. For the preferred driving of the present invention, an EC system, a guest-host system, and a TN system can be applied.

Here, the characteristic of each method is that the EC method is not a liquid crystal method, but a change time is relatively long. In addition, the guest-host method has relatively good change time and transmittance, but lacks unit price, durability, and mass productivity. The TN system has excellent change time, good unit price and durability, but relatively low initial transmittance.

As described above, the electrochromic LCD according to the present invention has advantages and disadvantages. The present invention is a technique for improving the disadvantage that the initial transmittance is lowered by applying the TN system.

The TN mode LCD of the present invention has an operating mechanism as shown in Fig.

In addition, the LCD unit of the present invention may be configured in the form of a flexible polarizing film, and the LCD unit 200 may further include an AF (anti-fog) film.

That is, according to the present invention, a polarizing film member existing on one side or both sides of a lens can be manufactured in a flexible film shape that is bent well.

Further, it is preferable to use a polarizing film to which an AF (Anti fog) film is applied as the alternative polarizing film.

It is possible to characterize an LCD type in which a primary curving operation is performed on a lens for application to eyewear such as goggles or sports glasses of the present invention.

According to the present invention, the illuminance sensor 300 senses the illuminance of the surroundings and the transmittance of the LCD unit 200 is controlled according to the detection of the illuminance sensor 300, And a control unit (400) for controlling the operation of the apparatus.

The controller 400 may turn on or off the operation of the LCD unit 200 when there is a change in illuminance over a reference value according to the detection of the illuminance sensor.

In addition, the controller 400 adjusts the transmittance of the LCD unit 200 using a pulse-width modulator (PWM) control method to form a plurality of transmittances between a preset maximum brightness and a minimum brightness.

That is, the present invention controls the transmittance of 55% or more while maintaining the polarity efficiency of the LCD unit 200 at 65% to 70%.

In manufacturing a single polarizing film as described above, the initial transmittance (off) of the product can be maintained at 43% or more and the blocking transmittance (ON) can be maintained at 15% or less.

In addition, the LCD unit 200 may be formed on both sides of the lens 100, and the polarizing degrees of the front and back polarizing films may be differently combined to increase the initial transmissivity to a certain level, thereby further lowering the blocking transmittance. And can be applied accordingly.

For example, if the polarization degree of the polarizing film on one side is maintained at 99% and the polarization degree of the other polarizing film is maintained at approximately 70% through the control of the control section 400, a change in transmittance of about 40% to 8% The user can quickly manipulate the discoloration rate and discoloration amount of the lens while solving the conventional problems and perform the discoloration function more precisely by electrically adjusting the transmittance of the lens 100 according to the illuminance without reacting with UV can do.

Further, in order to realize an optimal color, the present invention can be realized by using a polarizer (PVA) of a polarizing film as a dye type so that the necessary color in the lens 100 can be realized as a dye.

The general LCD has a transmittance variation of less than 35% and less than 1%. However, the present invention is characterized in that the transmittance at off-time is made brighter, and the transmittance is as high as that of ordinary sunglasses.

Further, as shown in FIG. 5, the present invention may show various forms of sunglasses as another embodiment of the present invention.

The embodiments of the present invention described in the present specification and the configurations shown in the drawings relate to preferred embodiments of the present invention and are not intended to cover all of the technical ideas of the present invention so that various equivalents And variations are possible. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. And such changes are within the scope of the claims of the present invention.

100: lens
200: LCD section
300: Light sensor
400:
500:

Claims (7)

An LCD (Liquid Crystal Display) portion formed on one surface of the lens to electrically change color and adjust transmittance; And
And a power supply unit for supplying operating power to the LCD unit. The method according to claim 1,
Wherein the LCD unit is a twisted nematic (TN) driving type LCD. 3. The method of claim 2,
The LCD unit is a flexible polarizing film,
Wherein the polarizing film is a polarizing film having a transmittance of 55% or more while maintaining a polarity efficiency of 65% to 70% of the LCD unit. The method according to claim 1,
Wherein the LCD unit is an anti-fog (AF) film. The method according to claim 1,
An illuminance sensor for sensing a surrounding illuminance; And
Further comprising a control unit for controlling the transmittance of the LCD unit according to the detection of the illuminance sensor, and adjusting a discoloration rate and a discoloration amount according to user's setting. The method of claim 3,
The control unit
Wherein the operation of the LCD unit is turned on or off when there is a change in illuminance over a reference value according to detection of the illuminance sensor. The method of claim 3,
The control unit
Characterized in that the transmittance of the LCD is adjusted by adjusting a DUTY ratio by PWM (pulse-width modulators) control method, and a multi-step transmittance is formed between a preset maximum brightness and a minimum brightness to control the function.
KR1020150160510A 2015-11-16 2015-11-16 Electro-chromic system for eyewear KR20170056977A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150160510A KR20170056977A (en) 2015-11-16 2015-11-16 Electro-chromic system for eyewear
PCT/KR2016/001668 WO2017086542A1 (en) 2015-11-16 2016-02-19 Functional electrochromic eyewear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150160510A KR20170056977A (en) 2015-11-16 2015-11-16 Electro-chromic system for eyewear

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KR20170056977A true KR20170056977A (en) 2017-05-24

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WO (1) WO2017086542A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101986192B1 (en) 2017-11-29 2019-06-05 주식회사 스포컴 Eyewear with adjustable light transmittance
WO2020213943A1 (en) * 2019-04-18 2020-10-22 주식회사 엘지화학 Variable polarization element
EP3792680A4 (en) * 2018-05-06 2021-05-19 Spocom Co.,Ltd. Light transmittance adjustable eyewear

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108388063B (en) * 2018-02-27 2022-03-22 Oppo广东移动通信有限公司 Laser projection module, depth camera and electronic device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050011903A (en) * 2003-07-24 2005-01-31 주식회사 파스웰드 Apparatus for checking welding real time with eyeglasses type
JP2008181064A (en) * 2006-12-26 2008-08-07 Victor Co Of Japan Ltd Electronic sunglass
KR101367958B1 (en) * 2007-12-18 2014-02-26 삼성전자주식회사 Head mounted Display terminal having a light shutter
KR101221426B1 (en) * 2010-10-22 2013-01-11 주식회사 오토스윙 Optical properties control system for sunglass or goggle and sunglass and goggle with the same
KR101273620B1 (en) * 2011-11-24 2013-06-11 주식회사 한국 오.지.케이 Depending on ambient illumination which automatically adjust transmittance of lens Goggles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101986192B1 (en) 2017-11-29 2019-06-05 주식회사 스포컴 Eyewear with adjustable light transmittance
EP3792680A4 (en) * 2018-05-06 2021-05-19 Spocom Co.,Ltd. Light transmittance adjustable eyewear
US11087715B2 (en) 2018-05-06 2021-08-10 Spocom Co., Ltd. Light transmittance adjustable eyewear
WO2020213943A1 (en) * 2019-04-18 2020-10-22 주식회사 엘지화학 Variable polarization element

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