Colorimetric characterization of a computer‐controlled liquid crystal display

Day, Ellen A.; Taplin, Lawrence A.; Berns, Roy S.

doi:10.1002/col.20046

Cited by 96 publications

(63 citation statements)

References 10 publications

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“…The resolution for this display was 1366x768 and it had a peak brightness of 300 cd/m 2 . This display was previously characterized using known techniques to build a characterization model 16 with results seen in Table 1. To test the model, 2060 RGB values were sent through the forward model to predict corresponding XYZ values.…”

Section: Setupmentioning

confidence: 99%

Perceptually optimal boundaries for wide gamut TVs

Laird

Heynderickx

2008

SPIE Proceedings

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Displays are coming on the market that can produce a larger range of colors over EBU and this has led to much research on the topic of how to use the additional color gamut volume provided by the displays. Some research has focused on different methods to map colors from small to large gamuts, whereas this paper focuses on defining the required gamut boundaries for natural content. Two gamuts were created from the results of a psychophysical experiment that asked observers to choose their preferred image in terms of saturation. One gamut corresponded to the median value of their choices and the second gamut corresponded to the 90% value of their choices. The results indicated that even at the 90% value, the resulting gamut was smaller than that of the wide-gamut display for most hues and actually closer to EBU for some hues. These results are display independent, at least when considering modern displays that can reach luminance values above 250cd/m 2 .

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Section: Setupmentioning

confidence: 99%

Perceptually optimal boundaries for wide gamut TVs

Laird

Heynderickx

2008

SPIE Proceedings

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“…Since a wide range of various colors can be generated by mixing red, green, and blue, these primaries are commonly used in the display colorimetry. The each pixel on flat panel display can separately emit red, green, and blue lights [4][5] .…”

Section: Introductionmentioning

confidence: 99%

Non-imaging Optical Design of a Measurement Probe for LCD Display Used in a Color Analyzer

Rim¹

2011

Korean Journal of Optics and Photonics

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We introduce Gaussian (or paraxial) optics that can be successfully applied to design, for use in a color analyzer, a non-imaging optical system on a measurement probe for LCD display. The color analyzer is used to decompose colored lights leaving from some measurement area on the LCD display to red, green, and blue. The color analyzer must include a condenser lens whose purpose is to gather colored lights to illuminate a small area on the sensor. In order to satisfy a reduction ratio between the measurement area and the sensing area with a non-imaging condition, a condenser lens is analytically treated by means of Gaussian optics so that good understanding of the non-imaging condenser lens is achieved as a good design is derived. As a result, the technique shows the necessity of analytical treatment in contrast to the design approach using only commercial software such as CODE-V, Light-Tools, and others. Of course, CODE V and Light-Tools are also utilized in this paper to confirm and complete the Gaussian optical design.

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“…6 -12,14 The SM model can be improved by optimizing the chromaticity matrix for a set of measurement data. [15][16][17] When the impacts of variant primary chromaticity and primary crosstalk are significant so that the SM model is not accurate enough, the other approaches to characterize LCDs should be taken. The three-dimensional look-up-table (3D-LUT) model and regression model can be used to characterize a nonlinear device, 18 e.g., the characterizations of color printers, scanners, and digital still color cameras (DSC).…”

Section: Introductionmentioning

confidence: 99%

“…6 -12 The LCDs that reasonably satisfy the two constraints have been accurately characterized with the conventional methods and black-level correction. [13][14][15][16][17] For the LCDs that do not reasonably satisfy the constraints, more complex and higher-order characterization methods are required for accurately colorimetric characterization. In this article, we propose a method for accurately characterizing the LCDs with variant primary chromaticity and primary crosstalk.…”

Section: Introductionmentioning

confidence: 99%