Sony Corp. has announced the pending release of the ECX339A OLED Microdisplay featuring UXGA (1600 x 1200 resolution), which Sony claim is the highest in class for a 0.5-type.
Sony said this product achieves the world's smallest pixel pitch of 6.3μm by leveraging Sony's OLED display technology and miniaturisation technology, enabling a resolution 1.6x higher than the previous model1.
By employing a new drive circuit design that operates on half the voltage of the previous model1, 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 system2, a frame rate up to 240 fps is supported—double that of previous product1.
| Model name | Sample shipment date | Mass-production shipment date (planned) | Sample price (excluding tax) |
|---|---|---|---|
| ECX339A 0.5-type OLED Microdisplay | January 2018 | November 2018 | 50,000 JPY |
Sony said that 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 optimised transistors layout and process to address uneven characteristics and loss of withstand voltage, the issues associated with transistor miniaturisation.
The Sony original variation compensation circuit also enhances picture quality.
Additionally, the colour filter is deposited directly on the silicon substrate, reducing its distance from the light emitting layer, and the filter's colour 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 colour gamut, and high-speed responsiveness.
Sony, having achieved this high resolution and high frame rate, now offers even more realistic image display and accurate capture of subjects for use in high-end cameras that demand extremely high image quality.
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.
Key Specifications
| Name | ECX339A |
|---|---|
| Display Size | 0.5 type (12.6 mm Diagonal length) |
| Resolution | UXGA（1600×RGB×1200） |
| Pixel pitch | 6.3μm |
| Max. frame rate | 120 fps (progressive) / 240 fps (dual-line progressive) |
| Power consumption (200 cd/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% |