KR970022401A - Segment inspection method of liquid crystal display - Google Patents

Segment inspection method of liquid crystal display Download PDF

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Publication number
KR970022401A
KR970022401A KR1019950036186A KR19950036186A KR970022401A KR 970022401 A KR970022401 A KR 970022401A KR 1019950036186 A KR1019950036186 A KR 1019950036186A KR 19950036186 A KR19950036186 A KR 19950036186A KR 970022401 A KR970022401 A KR 970022401A
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KR
South Korea
Prior art keywords
segment
liquid crystal
crystal display
gray level
inspection method
Prior art date
Application number
KR1019950036186A
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Korean (ko)
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KR0165452B1 (en
Inventor
황철
Original Assignee
김광호
삼성전자 주식회사
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.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950036186A priority Critical patent/KR0165452B1/en
Publication of KR970022401A publication Critical patent/KR970022401A/en
Application granted granted Critical
Publication of KR0165452B1 publication Critical patent/KR0165452B1/en

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    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/30—Gray scale

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Liquid Crystal (AREA)

Abstract

액정 디스플레이의 세그멘트 ON/OFF 상태를 검사하는 세그멘트 검사방법에 대해 개시한다. 이 검사방법은 액정디스플레이에 조명 (70)을 조사하여 각 세그멘트(31)를 모니터링하는 단계와, 세그멘트의 그레이 레벨값과 세그멘트 주변의 그레이 레벨값을 비교하여 임의의 초기치를 설정하는 단계와, 모니터링된 각 세그멘트의 위치를 순차적으로 인식하는 단계와, 인식된 세그멘트의 그레이 레벨값과 상기 초기치를 비교하여 세그멘트의 온/오프를 판정하는 비교단계를 포함한다. 이 검사방법은 조명의 조도 및 세그멘트의 위치가 변화되더라도 수작업에 의하지 아니하고 연속적인 검사를 가능하게 한다.A segment inspection method for inspecting a segment ON / OFF state of a liquid crystal display is disclosed. This inspection method comprises the steps of monitoring each segment 31 by irradiating illumination 70 to the liquid crystal display, comparing the gray level value of the segment with the gray level value around the segment, and setting an arbitrary initial value, and monitoring. And sequentially recognizing the position of each segment, and comparing the gray level value of the recognized segment with the initial value to determine whether the segment is on or off. This inspection method allows continuous inspection without manual intervention even if the illumination intensity and segment position are changed.

Description

액정 디스플레이의 세그멘트 검사방법Segment inspection method of liquid crystal display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 세그멘트 검사방법을 나타낸 블록도,2 is a block diagram showing a segment inspection method according to the present invention;

제3도는 세그멘트의 스캐닝을 위한 좌표도,3 is a coordinate diagram for scanning a segment,

제4도는 본 발명에 따른 검사방법의 흐름도.4 is a flow chart of the inspection method according to the present invention.

Claims (3)

액정디스플레이의 각 세그멘트의 온,오프상태를 검사하는 액정디스플레의 세그멘트 검사방법에 있어서, 상기 액정디스플레이에 조명을 조사하여 각 세그멘트를 모니터링하는 단계와, 상기 세그멘트의 그레이 레벨값과 세그멘트 주변의 그레이 레벨값을 비교하여 임의의 초기치를 설정하는 단계와, 상기 모니터링된 각 세그멘트의 위치를 순차적으로 인식하는 단계와, 상기 인식된 세그멘트의 그레이 레벨값과 상기 초기치를 비교하여 세그멘트의 온/오프를 판정하는 비교단계를 포함하여 되는 것을 특징으로 하는 액정디스플레이의 세그멘트 검사방법.A segment inspection method of a liquid crystal display for inspecting on and off states of each segment of a liquid crystal display, the method comprising: monitoring each segment by illuminating the liquid crystal display, the gray level value of the segment and the gray level around the segment Comparing a value to set an arbitrary initial value, sequentially recognizing the position of each monitored segment, and comparing the gray level value of the recognized segment with the initial value to determine on / off of the segment. Segment inspection method of the liquid crystal display, characterized in that it comprises a comparison step. 제1항에 있어서, 상기 초기치는 상기 세그멘트의 그레이 레벨값과 세그멘트 주변의 그레이 레벨값의 평균값인 것을 특징으로 하는 액정디스플레이의 세그멘트 감사방법.The method of claim 1, wherein the initial value is an average value of the gray level value of the segment and a gray level value around the segment. 제1항에 있어서, 상기 조명의 조도가 변화될 때 상기 초기치를 재차 설정하는 단계를 더 포함하여 되는 것을 특징으로 하는 액정디스플레이의 세그멘트 검사방법.The method of claim 1, further comprising resetting the initial value when the illuminance of the illumination is changed. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036186A 1995-10-19 1995-10-19 Segment checking method of lcd KR0165452B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036186A KR0165452B1 (en) 1995-10-19 1995-10-19 Segment checking method of lcd

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950036186A KR0165452B1 (en) 1995-10-19 1995-10-19 Segment checking method of lcd

Publications (2)

Publication Number Publication Date
KR970022401A true KR970022401A (en) 1997-05-28
KR0165452B1 KR0165452B1 (en) 1999-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950036186A KR0165452B1 (en) 1995-10-19 1995-10-19 Segment checking method of lcd

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KR (1) KR0165452B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101390002B1 (en) 2012-01-11 2014-04-30 국립대학법인 울산과학기술대학교 산학협력단 Clip for extension eyelashes
KR101294576B1 (en) 2012-04-17 2013-08-07 국립대학법인 울산과학기술대학교 산학협력단 Attaching device for extension eyelashes

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