Sony SXRD 4K manual Sxrd Panel

Dark level [%]

at 50°C

1.0		Contrast Ratio 75:1
0.1	SXRD Panel:	Contrast Ratio 750:1
	Contrast Ratio
0.01	4000:1
		Contrast Ratio 7500:1

0.001

0 0.5 1 1.5 2 2.5 3 3.5 4

Cell thickness [μm]

Dark level (left scale) and contrast ratio (right scale) vary dramatically as the Liquid Crystal layer thickness varies. This graphs shows contrast ratio of the SXRD panel alone, when measured with a conoscope.

•Spacer-less design. Many LCD panels require spacers in the image area to maintain a uniform cell gap. Unfortunately, these spacers interrupt the regularity of the nearby liquid crystal molecules, degrading contrast. The SXRD panel incorporates a spacer/sealer around the periphery of the live display area. As a result, the image is entirely free from spacers, to maintain maximum contrast. In addition, Sony's silicon backplane planarization helps establish an ultra-flat surface. Together with Sony's spacer/sealer, this maintains cell gap uniformity to a highly precise ±3%.

Sealing/Spacer Area	Timing controller
Data line driver
8.5 μm pixel pitch		line driver	FPC Pad
4096 x 2160		Scanning
(8.8 million pixels)

Plan view, not to scale, of Sony's 4K SXRD microdisplay panel. By locating the Sealing/Spacer outside the active picture area, the SXRD design maintains maximum contrast.

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