As noted by Tech-On!, a transparent display with a transmission of 80% has been created by Japan Display Inc. (JDI; Tokyo, Japan) for use in cars, showcases, and so on that will use augmented-reality (AR) and mixed-reality (MR) technologies. When the screen of the new display is turned off, the device appears simply as a transparent panel. When it is turned on, an image is displayed on the screen. The device can be used as a transmissive display or can be placed on a mirror.
The display was exhibited at a technology session that JDI held on Jan. 25, 2017, in Tokyo. JDI did not state what type of display it was, although the editors at Tech-On! said that the exhibited device "seemed to be an LCD display." (The opinion of this Laser Focus World editor is that, as the display is edge-lit and requires no polarizers, it is a light-scattering-based LCD.)
The transmittance of the see-through display is more than 50% higher than that of JDI's previous see-through display, which was a liquid-crystal display (LCD) and had a transmission of 10-30% using a polarizing plate or color filter.
JDI also has made a see-through organic-LED (OLED) display that does not require a polarizing plate or color filter. However, its transmittance is only 45% because, according to JDI, it has a low aperture ratio.
JDI plans to announce the technologies used for the see-through display at the SoCiety for Information Display conference (SID), an academic conference on display technologies, in May 2017 in the US. The screen size, pixel count, and resolution of the exhibited display are 4 in., 300 × 300 pixels, and 117 pixels per inch, respectively.
Source: http://techon.nikkeibp.co.jp/atclen/news_en/15mk/020901133/
