flat-plane display luminance and color uniformity measurement by 2-dimension ccd array
DESCRIPTION
Flat-Plane Display Luminance and Color Uniformity Measurement by 2-Dimension CCD Array. Fu Xiong Chang 2011/07/11. 本系統的功能驗証. 研究的 工作內容. 結論. 綱要. 研究的背景與目的. 1. 平面顯示器的主要品管檢測項目:. 輝度 (Luminance) 色度 (Color) 均勻性 (Uniformity). 研究的背景與動機. 2. 平面顯示器之輝度與色度 均勻性量測 相關標準 組織. VESA FPDM - PowerPoint PPT PresentationTRANSCRIPT
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Flat-Plane Display Luminance and Color Uniformity Measurement by 2-Dimension CCD ArrayFu Xiong Chang2011/07/11
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(Luminance)(Color)(Uniformity) 1.2.VESA FPDMISO (International Organization for Standardization)TCO (The Swedish Confederation for Professional Employees)SPWG (The Standard Panels Working Group)3.-3
VESA FPDM:Non-Uniformity % = 100% x [1- (Lmin / Lmax)]ISO:
Uniformity = (Lmax / Lmin)TCO
LuminanceVariation = Lmax/LminSPWG:
Non-Uniformity % = 100% x [1- (Lmin / Lmax)]4-BM-7A
123456789BM-7ABM-7Acolorimeters CCDPhotometer /ColorimeterCCDCCD5
CIE CCDCCD,LabVIEWCCD
5 6
1.CCD a. b. C. 2.CCD a. b.CCD(Flat-Field correction) c.
73CCD(Sony DXC-390)(NI PCI-1410) LabVIEW(Luminance)(Color)(Uniformity)
8CCD9
a.CCD10010%10b.CCD
base line11
c.CCD
12CCD13
14a.3CCD
Transfer matrix=
15b.CCD(Flat-Field correction)cos4E3= cos4 *E1CCDdA0dA2dA1dA301E1E316Sony DXC-390 3CCD camera
CCD
17
CCDSony DXC-390
3CCD camera
18CCD
19
20
21Gi,j = i,j L +i,j LGi,j i,j i,j (least square method)(i,ji,j) Gi,j - i,j L -i,j=
(curve fitting)CCD22Gi,j = q L +qBefore calibrationAfter calibration
23
524
25
26
12%27 2%
28
L = i,j Gi,j +i,j LGi,ji,j i,j
(least square method)(i,ji,j) c.(XYZ)(XYZ)29
CCDSony DXC-390
3CCD camera
Distance =500mm (nits)30A500mmF5.6CCD1/10000sec
CCD31BM-7ASONY DXC-390%XYZXYZXYZ17025626320866934616320481.3%1.5%1.8%28178728923788129725023530.6%0.5%1.0%39689865927969614860428810.7%0.6%-3.0%411242101003306112081005833570.3%0.4%-1.5%51136010172327211425102863372-0.5%-1.1%-3.0%61317811856397813200118444069-0.1%0.1%-2.3%71543013910464915554140214757-0.8%-0.8%-2.3%819472176545851194301761359350.2%0.2%-1.4%922980208806857229792092169560.0%-0.2%-1.4%1026590242768084262392402880671.3%1.0%0.2% 3%
32CCD(Luminance) (1)(Working distance) (2)(Focal length) (3)(Aperture) (4)CCD (5)CCD(CCD shutter) (6)=f[ (2),(3),(4),(5),(6)]33
34
VESA 9
35
98.2%936
BM-7ASONY DXC-390%XYZXYZXYZ7025626320866934616320481.3%1.5%1.8%A37
BM-7ASONY DXC-390%XYZXYZXYZ9276109509785100131004493478%11%-5%38
BM-7ASONY DXC-390%XYZXYZXYZ6941149405617188136195774%-9%3%39
BM-7ASONY DXC-390%XYZXYZXYZ18762382992020082235109807%-6%11%40
BM-7ASONY DXC-390%XYZXYZXYZ40521454503240190668-20%31%37%41
=42CCD3CCDCCD(Flat-Field correction)(XYZ)(XYZ)CCD-98%-A3%
43AA-
CIE XYZ44