18329390. Organic Light-Emitting Diodes with Off-axis Uniformity simplified abstract (Apple Inc.)
Contents
Organic Light-Emitting Diodes with Off-axis Uniformity
Organization Name
Inventor(s)
Yifan Zhang of Palo Alto CA (US)
Amin Salehi of San Jose CA (US)
Chieh-Wei Chen of Taichung (TW)
Hoyeon Kim of Campbell CA (US)
Paul S. Drzaic of Morgan Hill CA (US)
Organic Light-Emitting Diodes with Off-axis Uniformity - A simplified explanation of the abstract
This abstract first appeared for US patent application 18329390 titled 'Organic Light-Emitting Diodes with Off-axis Uniformity
Simplified Explanation
The abstract describes an electronic device with an organic light-emitting diode (OLED) display. The display includes OLED pixels with layers between a cathode and an anode. To improve off-axis luminance and luminance uniformity, the display includes green pixels with narrow emission spectra, a reflective layer separate from a transparent anode, and/or a diffusive layer embedded in encapsulation layers.
- The electronic device has an OLED display with organic layers between a cathode and an anode.
- The display includes green pixels with emission spectra having a narrow full width at half maximum.
- A reflective layer is formed separately from a transparent anode to improve off-axis luminance.
- A diffusive layer is included in the display, which may be embedded in encapsulation layers.
- The diffusive layer may act as a diffusive color filter.
Potential Applications:
- This technology can be used in various electronic devices with displays, such as smartphones, tablets, televisions, and wearable devices.
- It can enhance the visual quality and viewing experience of OLED displays by improving off-axis luminance and luminance uniformity.
Problems Solved:
- Off-axis luminance refers to the brightness of the display when viewed from different angles. This technology addresses the issue of reduced brightness and color accuracy when viewing the display from off-axis angles.
- Luminance uniformity refers to the consistency of brightness across the display. This technology improves the uniformity of luminance across the OLED display.
Benefits:
- Improved off-axis luminance and luminance uniformity result in a better viewing experience with enhanced brightness and color accuracy.
- The use of green pixels with narrow emission spectra can enhance the color reproduction and overall visual quality of the display.
- The inclusion of a reflective layer and a diffusive layer helps to optimize the light distribution and improve the overall performance of the OLED display.
Original Abstract Submitted
An electronic device may have a display such as an organic light-emitting diode display. The organic light-emitting diode display may have an array of organic light-emitting diode pixels that each have organic light-emitting diode layers interposed between a cathode and an anode. To improve off-axis luminance and luminance uniformity, the display may include green pixels with emission spectra having a narrow full width at half maximum, the display may include a reflective layer that is formed separately from a transparent anode, and/or the display may include a diffusive layer. The diffusive layer may be embedded in one or more encapsulation layers for the display. The diffusive layer may be a diffusive color filter.
