Round OLED displays, fast and temperature-stable
Circular, high contrast, ultra-thin, power-saving and stable over a very wide temperature range: The OLED displays of the EA W128128-XR series provide the ideal solution for compact handheld devices.
The new OLED displays from DISPLAY VISIONS are just 2.05 mm thick. Its display area has a diameter of 30 mm (1.2") and consists of a passive matrix of 128 x 128 pixels. This format qualifies perfectly for the display of analogue measurement scales. The external dimensions of the entire module, including the connection cable, amount to almost 37x41mm.
As a self-luminous display technology, OLEDs offer numerous advantages compared to LCDs. In addition to the extremely flat design, the advantages include very wide viewing angles all around up to almost 180°. Thanks to the deep black level, this display technology impresses with a contrast ratio of >2000:1. The brightness of the controlled areas in the 50% checkerboard pattern is 80cd/m2. At first glance, this may not sound much, but it is brilliant even in bright daylight. With 10 µs, the display reacts extremely fast, even at ice-cold -40°C as well as scorching +80°C.
The integrated controller SSD1327ZB requires a supply voltage of 3.3V, the display 14.5V. The current consumption for displaying a checkerboard pattern typically amounts to 24 mA which is a very economical consumption. The display is controlled via SPI protocol via a 24-pole ZIFF connection. Thanks to numerous initialization examples, measured values, graphics and icons can be displayed quickly and with high contrast.
The EA W128128-XR displays are offered in three colours: EA W128128-XRLG with yellow, EA W128128-XRLW with white and EA W128128-XRLB with blue pixels on a black background. The typical lifetime of the yellow display amounts to 50,000 hours. As a rule, it takes 20,000 hours for white and blue to lose half their brightness.
Owing to its compact design, the energy-saving display and the extreme temperature stability, the EA W128128-XR series is excellently suited for use in mobile handheld devices. A USB test board and OLED simulation software for Windows are also available for quick testing of individual applications.
More information are on our Website and the data sheet.
DISPLAY VISIONS is a brand of ELECTRONIC ASSEMBLY.