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Monday, May 28, 2018
New Sony 0.5-type OLED Microdisplay Supports UXGA Resolution and the World's Smallest Pixel Pitch


Sony today announced the upcoming release of the ECX339A OLED Microdisplay featuring UXGA (1600 x 1200 resolution), the highest in class for a 0.5-type.

This product has world's smallest pixel pitch of 6.3μm by leveraging Sony's OLED display technology and miniaturization technology, enabling a resolution 1.6x higher than Sony's previous model - the Sony OLED Microdisplay ECX337A (0.5-type QVGA (1280x960)).

By employing a new drive circuit design that operates on half the voltage of the previous model, the new product achieves the same level of low-power operation as its predecessor but with much higher resolution. When paired with Sony's original driving system, a frame rate up to 240 fps is supported - double that of Sony's previous product.

Enhancing the resolution on microdisplays has traditionally presented problems such as deteriorating image quality due to decreased pixel pitch and inferior viewing angle properties. The new product features optimized transistors layout and process to address uneven characteristics and loss of withstand voltage, the issues associated with transistor miniaturization. The Sony original variation compensation circuit also enhances picture quality. Additionally, 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.

OLED Microdisplays are widely used in digital camera electronic viewfinders (EVF) for their superior high contrast, high color gamut, and high-speed responsiveness.

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.

The company is already sampling the ECX339A (50,000 JPY) and will start mass production of it in November 2018.

Name ECX339A
Display Size 0.5 type (12.6 mm Diagonal length)
Resolution UXGA(1600xRGBx1200)
Pixel pitch 6.3μm
Max. frame rate 120 fps (progressive) / 240 fps (dual-line progressive)
Power consumption (200cd/m2) 310 mW @ 60 fps (progressive) / 120 fps (dual-line progressive)
Video interface LVDS/Sub-LVDS
Max. luminance 1,000cd/m2
Contrast 100,000:1 or higher
Color gamut (u'v') sRGB ratio: 110%


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