KR100922042B1 - 휘도보정시스템 및 휘도보정알고리듬 - Google Patents
휘도보정시스템 및 휘도보정알고리듬 Download PDFInfo
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- KR100922042B1 KR100922042B1 KR1020080018311A KR20080018311A KR100922042B1 KR 100922042 B1 KR100922042 B1 KR 100922042B1 KR 1020080018311 A KR1020080018311 A KR 1020080018311A KR 20080018311 A KR20080018311 A KR 20080018311A KR 100922042 B1 KR100922042 B1 KR 100922042B1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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- 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
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Abstract
Description
R 휘도변화량 | G 휘도변화량 | B 휘도변화량 | 휘도변화량 | |
1 | +3 | +3 | +3 | L(+3) |
2 | +2 | +2 | +2 | L(+2) |
3 | +1 | +1 | +1 | L(+1) |
4 | 0 | 0 | 0 | L(0) |
5 | -1 | -1 | -1 | L(-1) |
6 | -2 | -2 | -2 | L(-2) |
7 | -3 | -3 | -3 | L(-3) |
휘도가 높은 경우 | 휘도가 낮은 경우 | |||||||
case1 | case2 | case3 | case4 | case1 | case2 | case3 | case4 | |
R | - | - | + | + | ||||
G | - | + | ||||||
B | - | - | + | + |
Claims (9)
- 최고 휘도로 발광하도록 하는 데이터신호를 인가하는 데이터신호인가부;상기 데이터신호가 인가된 화소부의 휘도를 측정하는 휘도측정부;상기 휘도측정부에서 측정된 휘도와 기설정된 목표치의 휘도를 비교하여 차이값을 구하는 비교부;상기 차이값에 대응하여 상기 화소부에 포함되어 있는 R,G,B 화소의 휘도 변화량을 조절하는 룩업테이블;상기 R,G,B 화소의 휘도 변화량에 따라 데이터신호를 조절하여 상기 데이터신호 인가부에 전달하는 데이터조정부;상기 화소부의 색좌표를 판단하는 색좌표 판단부; 및상기 색좌표판단부에 의해 판단된 색좌표에 대응하여 색도를 조절하는 색도보정부를 포함하는 휘도보정시스템.
- 제 1 항에 있어서,상기 데이터조정부는 상기 데이터신호의 감마값을 변화시켜 상기 데이터신호를 조절하는 휘도보정시스템.
- 제 1 항에 있어서,상기 룩업테이블은 전체 휘도 변화량에 대응한 상기 R,G,B 화소의 휘도변화량을 저장하는 휘도보정시스템.
- 제 1 항에 있어서,상기 색좌표판단부는 목표치 화이트 칼라를 기준점으로 가상의 수평 수직선에 의한 직각 좌표계에 대응하여 4개의 케이스로 지정하고 측정된 색좌표의 좌표계의 위치에 따라 상기 4개의 케이스 중 하나로 선정한 후 R,G,B의 색도를 조절하는 휘도보정시스템.
- 제 4 항에 있어서,상기 R,G,B의 색도 조절은 측정된 휘도가 목표치보다 높고 낮음에 따라 다르게 적용되는 휘도보정시스템.
- 휘도를 전달하여 최대 휘도로 발광하는 화소부의 휘도를 측정하는 단계;상기 측정된 휘도와 기설정된 목표치 휘도를 비교하여 그 차이값을 산출하는 단계;상기 산출된 차이값에 대응한 R,G,B 화소 각각의 휘도 변화량을 판단하는 단계; 및상기 휘도변화량에 따라 휘도를 변화시킨 후, 목표치 화이트 칼라를 기준점으로 가상의 수평 수직선에 의한 직각 좌표계에 대응하여 4개의 케이스로 지정하고 측정된 색좌표의 좌표계의 위치에 따라 상기 4개의 케이스 중 하나로 선정한 후 R,G,B의 색도를 조절하는 단계를 포함하는 휘도보정방법.
- 제 6 항에 있어서,상기 R,G,B 화소 각각의 휘도 변화량을 판단하는 단계에서 룩업테이블을 이용하는 휘도보정방법.
- 제 6 항에 있어서,상기 R,G,B 화소 각각의 휘도 변화량에 따른 휘도변화는 감마값을 조정함으로써 달성되는 휘도보정방법.
- 제 6 항에 있어서,상기 색도를 보정하는 단계에서, 상기 측정된 휘도가 목표치보다 높은 경우와 목표치보다 낮은 경우에 다르게 적용되는 휘도보정방법.
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KR1020080018311A KR100922042B1 (ko) | 2008-02-28 | 2008-02-28 | 휘도보정시스템 및 휘도보정알고리듬 |
US12/209,982 US20090219306A1 (en) | 2008-02-28 | 2008-09-12 | Luminance correction system and method |
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KR20170068671A (ko) * | 2015-12-09 | 2017-06-20 | 삼성디스플레이 주식회사 | 휘도 보정 장치, 이 휘도 보정 장치를 이용한 휘도 보정 방법, 및 이 휘도 보정 장치를 포함하는 표시 장치 시스템 |
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CN110534061A (zh) * | 2019-09-05 | 2019-12-03 | 合肥鑫晟光电科技有限公司 | 补偿方法、补偿装置及显示装置 |
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US20090219306A1 (en) | 2009-09-03 |
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