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0.5-type OLED microdisplay boasts 4031PPI resolution

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By eeNews Europe

Comparing the UXGA OLED microdisplay (left) with
the QVGA OLED microdisplay (right).

The company says the ECX339A OLED microdisplay delivers a resolution 1.6x higher than its predecessor while employing a new drive circuit design that operates on half the voltage of the previous part. When paired with Sony’s original “Dual-line progressive” driving technique, the display supports a frame rate up to 240 fps, double that of the ECX337A, a 0.5-type QVGA (1280×960) OLED microdisplay. Already sampling and due to be mass-produced by the end of the year, the new product features optimized

The new product (UXGA, left) designed for a larger
viewing angle even at a smaller pixel pitch compared
to the previous product (QVGA, right).

transistors layout and process to address uneven characteristics and loss of withstand voltage, the issues associated with transistor miniaturization.

In the new display, the color filter is deposited directly on the silicon substrate, reducing its distance from the light emitting layer, and the filter’s color array has been modified. This helps to secure the viewing angle properties while achieving high resolution.

Going forward, Sony expects this high-definition OLED Microdisplay to be employed in a diverse range of fields and applications such as AR (augmented reality) and VR (virtual reality) head-mounted displays. At 200cd/m2, the device draws 310mW at 60fps (progressive) / 120 fps (dual-line progressive). Maximum luminance is 1,000cd/m2.

Sony – www.sony.net

 


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