Due to the capability of the AMOLED (Active matrix organic light
emitting diode) display can provide superior color saturation, flexible
utilization, slimmer screen profile and more impressive image quality,
it has received increasing demand for application in electronic devices.
The organic light emitting diode (OLED) is current driven device so
that the characteristics of thin field transistor (TFT) influence
panel uniformity. Multiple TFT of pixel circuitry has been designed
to compensate the
th (threshold voltage) variations of array
process and other driving issues. The fine metal mask (FMM) used in
the OLED evaporation is an accurate mask having physical margin limitations
in the high PPI (pixel per inch) AMOLED application. This paper details
the utilization of a 2/3 sampled sub-pixel rendering (SPR) method
to liberate more 50% layout area than the RGB stripe configuration.
The proposed algorithm utilizes edge detection and one-side color
diffusion to improve display performance as well as RGB stripe compatibility.
A 4.65” HD (720
1280) AMOLED panel with a 317 PPI retina display was implemented to realize
the development of our SPR technology.
© 2015 IEEE
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access Optica Member Subscription