Description
With more and more LED screen widely used, ‘blurry screen’,
‘dirty screen’ such ‘can’t calibrate’ problems has become
a bottleneck that directly reduce LED screen working life and
increase practice cost as well as restrict the development of LED
industry. With 3 years unremitting effort, Dalian Dawning
successfully developed ‘luminance and chrominance correction
system’. Our own R&D ‘Online full-color LED screen
luminance correction and color gamut optimization method’ has
obtained national invention patent which can make *4bit pixel
correction for LED chips luminance and wavelength attenuation. This
has filled a blank of internal market and will completely improve
current LED screen display effect as well as promote our production
export capability.Â
Dalian Dawning has cooperated with America Radiant Image and Japan
Cybernet in LED color correction and control field to create
domestic high-end market.
All our products comply with ROHS,CE,FCC certification. We’re
also‘***0 the 1st batch of Dalian software and service
outsourcing enterprise’.Â
advantage of dawning pixel correction system:
1.With QImaging PM***3F*1 CCD imaging colorimeter, the highest
metrical data accuracy in LED industry.Detail parameters refer to
below:
CCD type: QImaging,cooling type, single color, full frame
CCD
CCD size: *7.6×*8.4 mm
CCD resolution rate: ***8×***6
CCD dynamic range: *4bit=****4
Adopt RGB color matching with CIE color filter, chrominance
accuracy: ±0.**3, luminance accuracy: ±3%
Use ND filter, luminance measuring range: 0.**5～hundred of
thousands cd/m2
Measuring speed: luminance is 6sec, chrominance is about *0sec
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2. Online full-color LED screen luminance correction and method of
color gamut optimization’ has obtained national invention
patent
Dawning’s ‘Online full-color LED screen luminance correction
and method of color gamut optimization’ obtained national
invention patent in February ***0. This patent is a core
technology in pixel chrominance and luminance correction
controlÂ
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3. D**2 control card with **-bit gray scale level model
algorithmic.
Current domestic mainstream LED control card displays gray scale
change from *-bit. Hence, accuracy of correction data exceeds the
maximum range that control card can save. After correction, can’t
achieve anticipitive display effect. Dawing’s D**2 control card
adopts **-bit gray scale model algorithmic, can completely output
after-correction compensation data to LED screen , making the
screen achieve the best display effect.Â
