Japan Display Inc. (JDI) has developed a 3.25-inch 1001ppi low temperature polysilicon (LTPS) TFT LCD specifically-designed for virtual reality (VR) head mount display (HMD) applications.
The Japanese company plans to start commercial shipments of the new display by the end of March in 2019.
VR-HMD devices should be able to offer natural and realistic experience to users, so the use of low-latency, high pixel density screens are essential.
JDI announced the development of a high-pixel-density 803ppi LCD last year, which helped to alleviate problems associated with users noticing pixel grid lines (i.e., pixelation). However, even more compact-size LCDs and higher magnification lenses are required in order to to decrease the size and weight of futuer HMD devices.
| |
803ppi LTPS TFT-LCD |
1001ppi LTPS TFT-LCD |
| LCD mode |
IPS designed for VR |
| Size |
3.60-inch |
3.25-inch |
| Resolution |
1920 x RGB x 2160 |
2160 x RGB x 2432 |
| Pixel density |
803 ppi |
1001 ppi |
| Response time |
4.5msec (gray-to-gray, worst case) |
2.2msec (gray-to-gray, worst case) |
| Refresh rate |
90Hz |
120Hz |
| Backlight method |
Global blinking |
JDI's new 1001ppi LTPS TFT LCD not only features high pixel density, but also has an improved LC response time - 4.5msec to 2.2msec (gray-to-gray, worst case). This helps the reduction of motion blur. In addition, the 1001ppi LTPS TFT LCD is able to operate at 120Hz refresh rate, though most displays for VR-HMD applications operate below 90Hz. The 120Hz refresh rate contributes to a minimum system latency.
JDI will showcase the 1001ppi LTPS TFT LCD at SID DISPLAY WEEK 2018,
held in Los Angeles, California, May 20 to May 25 2018.