All Black Effect Touch Display
When the display module is power-off, the colors of the viewing area and printing Ink area are obviously different in normal touch display solution, the appearance is not beautiful.
With the advance of the technology, customers want the touch display looks as a whole, such as automobile, home appliance and wearable products.EDT had developed an All Black Effect solution, you will see the similarity color in those two areas, also provide the cosmetic enhancement and harmonic look.
֍ EDT’s specification is defined ΔE≤1 for All Black Effect
How do you put a number to perceived difference in color?
The CIELAB color space also referred to as L*a*b* is a color space defined by the International Commission on Illumination (abbreviated CIE) in 1976. It expresses color as three values: L* for perceptual lightness, and a* and b* for the four unique colors of human vision: red, green, blue, and yellow. CIELAB was intended as a perceptually uniform space, where a given numerical change corresponds to similar perceived change in color.The commission addressed the topic of color difference in 1976, introducing the world to the concept of Delta E (ΔE).It’s a metric for understanding how the human eye perceives color difference.
Human eyes perceptive table
CIE L*a*b* color space
Features and Benefits
- To matching ink color for different TFT type
- Reduce sensor pattern visibility
- Control color difference ΔE≤1
The key factor of All Black Effect
The key factor of All Black Effect
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