KR20030082113A - Shading device for a vehicle using a liquid crystal panel - Google Patents

Shading device for a vehicle using a liquid crystal panel Download PDF

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Publication number
KR20030082113A
KR20030082113A KR1020020020671A KR20020020671A KR20030082113A KR 20030082113 A KR20030082113 A KR 20030082113A KR 1020020020671 A KR1020020020671 A KR 1020020020671A KR 20020020671 A KR20020020671 A KR 20020020671A KR 20030082113 A KR20030082113 A KR 20030082113A
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South Korea
Prior art keywords
liquid crystal
crystal panel
unit
light
vehicle
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KR1020020020671A
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Korean (ko)
Inventor
이형수
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기아자동차주식회사
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Priority to KR1020020020671A priority Critical patent/KR20030082113A/en
Publication of KR20030082113A publication Critical patent/KR20030082113A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: A shading device of a vehicle using a liquid crystal panel is provided to prevent disturbance in sight caused by a strong direct ray of light or a peripheral ray of light during driving and to promote safety traveling. CONSTITUTION: A shading device of a vehicle using a liquid crystal panel(10) comprises the liquid crystal panel disposed to a windshield glass or a side door glass; a light sensor unit(20) to sense the quantity of light; and an electronic control unit(30) controlling the driving power input to the liquid crystal panel according to a signal of the light sensor unit. The electronic control unit comprises a switch(40). The electronic control unit comprises a memory unit(31) storing a control value to drive and control the liquid crystal panel according to the volume of the signal input from the light sensor unit; a liquid crystal-driving unit(32) to drive the liquid crystal panel; and a control unit(33) to control the liquid crystal-driving unit by comparing the signal input from the light sensor unit with the data stored to the memory unit.

Description

액정패널을 이용한 차량의 차광장치{Shading device for a vehicle using a liquid crystal panel}Shading device for a vehicle using a liquid crystal panel

본 발명은 운전자가 과도한 빛에 노출되지 않으며, 일정한 광량만이 운전자의 시야에 들어오도록 하는 액정패널을 이용한 차량의 차광장치에 관한 것이다.The present invention relates to a light shielding device of a vehicle using a liquid crystal panel in which a driver is not exposed to excessive light and only a certain amount of light enters the driver's view.

일반적으로 자동차에는 윈드실드 글라스 또는 사이드도어 글라스를 통해 운전자의 시야에 들어오는 직사광선을 차단시키기 위해 선바이저와 같은 차광장치를 설치하거나, 글라스 면에 색상을 갖는 합성수지 필름으로 된 별도의 선팅을 하여 차광을 하고 있다.In general, a car is provided with a light shielding device such as a sun visor to block direct sunlight entering the driver's field of view through windshield glass or side door glass, or a separate sunding made of a synthetic resin film having a color on the glass surface. Doing.

그러나, 선팅과 같이 글라스 면에 합성수지 필름을 코팅하는 경우에는 어두운 야간 도로 주행 시에 전방의 장애물을 식별하기가 곤란하여 사고의 위험이 발생하게 된다.However, when the synthetic resin film is coated on the glass surface, such as sunting, it is difficult to identify the obstacles in front of the dark night road driving, which causes an accident.

이밖에도 종래에 전동모터를 이용한 차광장치 등이 개시되어 있으나, 운전자의 조작에 의해 편광막이 펴져서 실내에서 편광막이 이동하는 구조로 작동하여 운전자가 조작하기에 불편한 문제점이 있었다.In addition, a light shielding device using an electric motor has been disclosed in the related art, but the polarizing film is opened by the driver's operation to operate the structure in which the polarizing film moves in the room, which causes inconvenience to the driver.

본 발명은 상기의 결점을 해소하기 위한 것으로, 일정한 광량만이 운전자의 시야에 감지되도록 차량 글라스에 액정패널을 장착하며, 일정 이상의 광량이 감지되는 경우에는 차광할 수 있는 액정패널을 이용한 차량 차광장치를 제공하고자 한다.The present invention is to solve the above-described drawbacks, the liquid crystal panel is mounted on the vehicle glass so that only a certain amount of light is detected in the driver's field of view, and a vehicle light shielding device using a liquid crystal panel that can shield if a certain amount of light is detected To provide.

이러한 본 발명의 액정패널을 이용한 차량의 차광장치는 차량의 윈드실드 글라스 또는 사이드 도어 글라스에 구비되는 액정패널과; 광량을 감지하기 위한 광센서부와; 상기 광센서부의 신호에 따라 상기 액정패널에 입력되는 구동전원를 제어하는 전자제어유니트로써 달성된다.The light shielding device for a vehicle using the liquid crystal panel of the present invention includes a liquid crystal panel provided in the windshield glass or the side door glass of the vehicle; An optical sensor unit for sensing an amount of light; It is achieved as an electronic control unit for controlling the driving power input to the liquid crystal panel according to the signal of the optical sensor unit.

도 1은 본 발명의 차량 차광장치의 전체 구성도,1 is an overall configuration diagram of a vehicle light shielding device of the present invention;

도 2는 본 발명에 따른 액정패널이 장착된 상태의 차량을 보여주는 도면,2 is a view showing a vehicle in a state where a liquid crystal panel is mounted according to the present invention;

도 3은 본 발명에 따른 액정패널의 설치 위치를 보여주는 도면.3 is a view showing an installation position of a liquid crystal panel according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 윈드실드 글라스2 : 도어사이드 글라스1: Windshield Glass 2: Doorside Glass

10 : 액정패널20 : 광센서부10 liquid crystal panel 20 light sensor unit

30 : 전자제어유니트31 : 메모리부30: electronic control unit 31: memory unit

32 : 액정구동부33 : 제어부32: liquid crystal drive unit 33: control unit

40 : 스위치40: switch

도 1 내지 도 3은 본 발명의 차량 차광장치에 관한 것으로, 도 1은 본 발명의 차량 차광장치의 전체 구성도이며, 도 2는 본 발명에 따른 액정패널이 장착된 상태의 차량을 보여주는 도면이며, 도 3은 본 발명에 따른 액정패널의 설치 위치를 보여주는 도면이다.1 to 3 are related to the vehicle light shielding device of the present invention, Figure 1 is an overall configuration diagram of the vehicle light shielding device of the present invention, Figure 2 is a view showing a vehicle in a state where the liquid crystal panel according to the present invention is mounted; 3 is a view showing the installation position of the liquid crystal panel according to the present invention.

본 발명의 실시 예를 첨부 도면을 참고하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 액정패널을 이용한 차량 차광장치는 차량의 윈드실드 글라스 또는 사이드 도어 글라스에 구비되는 액정패널(10)과; 광량을 감지하기 위한 광센서부(20)와; 상기 광센서부(20)의 신호에 따라 상기 액정패널(10)에 입력되는 구동전원을 제어하는 전자제어유니트(30)로 구성되는 것을 기술상의 특징으로 한다.Vehicle light shielding apparatus using the liquid crystal panel of the present invention includes a liquid crystal panel 10 provided in the windshield glass or side door glass of the vehicle; An optical sensor unit 20 for sensing an amount of light; Technical features of the present invention include an electronic control unit 30 for controlling driving power input to the liquid crystal panel 10 according to the signal of the optical sensor unit 20.

액정패널(10)은 윈드실드 글라스 또는 도어사이드 글라스에 삽입될 수 있는 정도의 박막으로써, 두 투명 전극막에 전압을 인가하게 되면 투명 전극막 사이의 액정의 유동성과 유도전류율 이방성에 의해서 분자 배열이 변화되어 굴절률 이방성에 의해 액정패널을 투과하는 광량의 정도를 조절할 수가 있다.The liquid crystal panel 10 is a thin film that can be inserted into a windshield glass or a doorside glass. When a voltage is applied to the two transparent electrode films, the liquid crystal panel 10 is arranged by the liquidity and inductive current anisotropy of the liquid crystal between the transparent electrode films. By this change, the degree of light transmitted through the liquid crystal panel can be adjusted by refractive index anisotropy.

즉, 액정패널을 투과하는 투과광은 인가된 전압에 의존하며, 인가전압을 변화하여 투과광의 광량을 조절할 수가 있다.That is, the transmitted light passing through the liquid crystal panel depends on the applied voltage, and the amount of transmitted light can be adjusted by changing the applied voltage.

도 3에 도시된 바와 같이 윈드실드 글라스에 삽입되는 액정패널(10)의 크기 및 위치는 운전자의 시야각(θ)에 맞도록 설정할 수가 있다.As shown in FIG. 3, the size and position of the liquid crystal panel 10 inserted into the windshield glass may be set to match the driver's viewing angle θ.

상기 광센서부(20)는 포토 다이오드와 같은 조도센서로써, 빛을 감지하여 광량에 비례하여 해당 신호값을 출력하게 된다.The optical sensor unit 20 is an illuminance sensor such as a photodiode, and detects light to output a corresponding signal value in proportion to the amount of light.

도 2에 도시된 바와 같이 광센서부(20)는 다수의 조도센서가 차량의 윈드실드 글라스(1) 및 사이드도어 글라스(2)에 장착되며, 각 조도센서의 신호는 미도시된 와이어에 의해 전자제어유니트(30)로 입력된다.As shown in FIG. 2, the light sensor unit 20 includes a plurality of illuminance sensors mounted on the windshield glass 1 and the side door glass 2 of the vehicle, and signals of the illuminance sensors are not shown by wires. It is input to the electronic control unit 30.

상기 전자제어유니트(30)는 광센서부(20)의 신호에 따라 액정패널(10)을 구동하기 위한 구동전류를 제어하게 된다.The electronic control unit 30 controls the driving current for driving the liquid crystal panel 10 according to the signal of the optical sensor unit 20.

구체적으로 전자제어유니트(30)는 메모리부(31)와, 액정구동부(32)와, 제어부(33)로 구성될 수가 있다.Specifically, the electronic control unit 30 may be composed of a memory unit 31, a liquid crystal driving unit 32, and a control unit 33.

메모리부(31)는 광센서부(20)에 입력된 신호크기에 따라 액정패널(10)을 구동 제어하기 위한 제어값을 저장하게 된다.The memory unit 31 stores control values for driving control of the liquid crystal panel 10 according to the signal size input to the optical sensor unit 20.

메모리부(31)에 저장되는 제어값은 광센서부(20)의 각 조도센서의 위치 및 광센서부(20)에서 감지된 광량과, 액정패널(10)의 특성에 따라 결정될 수가 있다.The control value stored in the memory unit 31 may be determined according to the position of each illuminance sensor of the optical sensor unit 20, the amount of light detected by the optical sensor unit 20, and the characteristics of the liquid crystal panel 10.

즉, 광센서부(20)에 의해 측정된 신호값에 대하여 일정한 크기의 광량만이 액정패널(10)을 투과하도록 광센서부(20)에 감지된 광량이 큰 경우에는 액정패널(10)을 투과하는 광량을 적게 하며, 광센서부(20)에 감지된 광량이 작은 경우에는 액정패널(10)을 투과하는 광량을 크게 하도록 캘리브레이션(calibration)을 통하여 측정된 액정패널(10)의 제어값 데이터를 메모리부(31)에 저장하게 된다.That is, when the amount of light detected by the optical sensor unit 20 is large so that only a certain amount of light passes through the liquid crystal panel 10 with respect to the signal value measured by the optical sensor unit 20, Control value data of the liquid crystal panel 10 measured through calibration to reduce the amount of light transmitted and to increase the amount of light transmitted through the liquid crystal panel 10 when the amount of light detected by the optical sensor unit 20 is small. To be stored in the memory unit 31.

액정구동부(32)는 액정패널(10)을 구동하기 위한 구동전원을 출력하여 액정패널(10)의 명암을 결정하게 된다.The liquid crystal driver 32 outputs a driving power for driving the liquid crystal panel 10 to determine the contrast of the liquid crystal panel 10.

제어부(33)는 광센서부(20)에서 입력된 광량 신호를 메모리부(30)에 저장된 데이터와 비교하여 액정패널(10)의 제어값을 추출하여 액정패널(10)의 제어에 필요한 제어값을 액정구동부(32)로 출력하게 된다.The control unit 33 compares the light amount signal input from the optical sensor unit 20 with the data stored in the memory unit 30 to extract a control value of the liquid crystal panel 10 to control the liquid crystal panel 10. Is output to the liquid crystal driver 32.

상기 전자제어유니트(30)는 '온/오프'가 가능한 스위치(40)가 추가로 구성되어, 야간 주행의 경우에는 액정패널(10)에 인가되는 구동전원을 운전자가 '오프' 조작이 가능하도록 하여 차량 외부의 빛이 차광되지 않은 상태로 운전자의 시야에 들어오도록 할 수가 있다.The electronic control unit 30 further includes a switch 40 capable of 'on / off', so that the driver can 'off' the driving power applied to the liquid crystal panel 10 when driving at night. Therefore, the light outside the vehicle may enter the driver's field of view without being blocked.

이와 같이 구성된 본 발명의 액정패널을 이용한 차량 차광장치의 작동을 살펴보면 다음과 같다.Looking at the operation of the vehicle light shielding device using the liquid crystal panel of the present invention configured as described above are as follows.

차량의 윈드실드 글라스(1) 또는 도어사이드 글라스(2) 측에 장착된 광센서부(20)는 차량 실내로 들어오는 빛의 조도를 감지하여 전자제어유니트(30)로 전달하게 된다.The light sensor unit 20 mounted on the windshield glass 1 or the doorside glass 2 side of the vehicle detects the illuminance of the light entering the vehicle interior and transmits the light to the electronic control unit 30.

광센서부(20)를 통해 감지된 신호를 입력받은 제어부(33)는 메모리부(31)에 기저장된 데이터로부터 액정패널(10)의 제어에 필요한 제어값(전압의 크기)을 추출하여 액정구동부(32)에 신호를 출력하게 된다.The control unit 33 receiving the signal sensed through the optical sensor unit 20 extracts a control value (a magnitude of voltage) required for controlling the liquid crystal panel 10 from data previously stored in the memory unit 31 and the liquid crystal driving unit. A signal is output to 32.

제어부(33)로부터 제어신호를 입력받은 액정구동부(32)는 제어신호에 따라 액정패널(10)에 전압을 인가하여 액정패널(10)의 명암 정도를 조절함으로써, 운전자는 항상 일정한 광량의 투과광만을 감지하게 된다.The liquid crystal driver 32 receiving the control signal from the controller 33 applies a voltage to the liquid crystal panel 10 according to the control signal to adjust the degree of contrast of the liquid crystal panel 10 so that the driver always transmits only a certain amount of transmitted light. Will be detected.

야간 주행 시에는 운전석에 별도로 장착된 스위치(40)를 '오프'하여 운전자는 차광장치가 동작하지 않도록 할 수가 있다.When driving at night, the driver may 'off' the switch 40 separately installed in the driver's seat so that the driver may not operate the light shielding device.

이상과 같은 본 발명의 액정 패널을 이용한 차량의 차광장치는 윈드실드 글라스 또는 사이드도어 글라스에 액정 패널와; 광량을 측정하기 위한 광센서부와; 광센서부에서 감지된 신호에 따라 운전자가 항상 일정한 광량만을 감지하도록 제어값이 저장된 메모리부, 액정구동부, 및 제어부로 이루어진 전자제어유니트로 구성됨에 따라, 운전자는 운전 중에 강한 직사광선이나 주변광에 의해 발생할 수 있는 시력장애를 방지할 수가 있으며, 안전한 주행을 할 수 있는 효과가 있는 발명인 것이다.The light shielding device for a vehicle using the liquid crystal panel of the present invention as described above comprises a liquid crystal panel in a windshield glass or a side door glass; An optical sensor unit for measuring an amount of light; According to the signal detected by the light sensor unit, the driver consists of an electronic control unit consisting of a memory unit, a liquid crystal driving unit, and a control unit in which control values are always detected so that the driver always detects only a constant amount of light. It is possible to prevent a vision disorder that may occur, and the invention is effective to drive safely.

Claims (3)

차량의 윈드실드 글라스 또는 사이드 도어 글라스에 구비되는 액정패널과;A liquid crystal panel provided in the windshield glass or the side door glass of the vehicle; 광량을 감지하기 위한 광센서부와;An optical sensor unit for sensing an amount of light; 상기 광센서부의 신호에 따라 상기 액정패널에 입력되는 구동전원을 제어하는 전자제어유니트로 구성되는 것을 특징으로 하는 액정패널을 이용한 차량의 차광장치.The light shielding device of a vehicle using a liquid crystal panel, characterized in that the electronic control unit for controlling the driving power input to the liquid crystal panel according to the signal of the optical sensor unit. 제1항에 있어서, 상기 전자제어유니트는The electronic control unit of claim 1, wherein the electronic control unit '온/오프'가 가능한 스위치가 추가로 구성되는 것을 특징으로 하는 액정패널을 이용한 차량의 차광장치.Light blocking device for a vehicle using a liquid crystal panel, characterized in that the additional switch capable of 'on / off'. 제1항에 있어서, 상기 전자제어유니트는The electronic control unit of claim 1, wherein the electronic control unit 상기 광센서부에서 입력된 신호크기에 따라 액정패널을 구동 제어하기 위한 제어값을 저장하기 위한 메모리부와;A memory unit for storing a control value for driving control of the liquid crystal panel according to the signal size input from the optical sensor unit; 액정패널을 구동하기 위한 액정구동부와;A liquid crystal driver for driving the liquid crystal panel; 광센서부에서 입력된 신호를 메모리부에 저장된 데이터와 비교하여 액정구동부를 제어하기 위한 제어부로 구성되는 것을 특징으로 하는 액정패널을 이용한 차량의 차광장치.A light shielding device for a vehicle using a liquid crystal panel, characterized in that the control unit for controlling the liquid crystal driver by comparing the signal input from the optical sensor with the data stored in the memory unit.
KR1020020020671A 2002-04-16 2002-04-16 Shading device for a vehicle using a liquid crystal panel KR20030082113A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2475102A (en) * 2009-11-09 2011-05-11 Paul Slevin A vehicle windscreen with a liquid crystal light polarising layer
KR101878118B1 (en) * 2018-01-08 2018-07-12 길기연 Bus with front window improving driver's view through washer function and auto awning function
KR20190092799A (en) 2018-01-31 2019-08-08 쌍용자동차 주식회사 Method for manufacturing cholesteric liquid crystal film and electronic vehicle sun visor device using the same
KR20190092785A (en) 2018-01-31 2019-08-08 쌍용자동차 주식회사 Method for manufacturing cholesteric liquid crystal film and electronic vehicle sun roof device using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2475102A (en) * 2009-11-09 2011-05-11 Paul Slevin A vehicle windscreen with a liquid crystal light polarising layer
KR101878118B1 (en) * 2018-01-08 2018-07-12 길기연 Bus with front window improving driver's view through washer function and auto awning function
KR20190092799A (en) 2018-01-31 2019-08-08 쌍용자동차 주식회사 Method for manufacturing cholesteric liquid crystal film and electronic vehicle sun visor device using the same
KR20190092785A (en) 2018-01-31 2019-08-08 쌍용자동차 주식회사 Method for manufacturing cholesteric liquid crystal film and electronic vehicle sun roof device using the same

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