High performance ferroelectric LC microdisplay

Banks, Lewis

doi:10.1109/asid.1999.762775

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The deep trench capacitor and the stack capacitor are helpful in reducing the layout area, but not economic for microdisplays in the typical CMOS process. As a result, the traditional 6T static random-access memory (SRAM) that is also applied in typical DMD or FLC microdisplays is implemented to remove the capacitor [12,26,36]. The W∕L ratio of the N-type metal-oxide-semiconductor (NMOS) in the SRAM is two and a half times that of the P-type metal-oxide-semiconductor (PMOS) to obtain the fastest switching speed.…”

Section: B Pixel Drivermentioning

confidence: 99%

Optimal scan strategy for mega-pixel and kilo-gray-level OLED-on-silicon microdisplay

et al. 2012

View full text Add to dashboard Cite

The digital pixel driving scheme makes the organic light-emitting diode (OLED) microdisplays more immune to the pixel luminance variations and simplifies the circuit architecture and design flow compared to the analog pixel driving scheme. Additionally, it is easily applied in full digital systems. However, the data bottleneck becomes a notable problem as the number of pixels and gray levels grow dramatically. This paper will discuss the digital driving ability to achieve kilogray-levels for megapixel displays. The optimal scan strategy is proposed for creating ultra high gray levels and increasing light efficiency and contrast ratio. Two correction schemes are discussed to improve the gray level linearity. A 1280×1024×3 OLED-on-silicon microdisplay, with 4096 gray levels, is designed based on the optimal scan strategy. The circuit driver is integrated in the silicon backplane chip in the 0.35 μm 3.3 V-6 V dual voltage one polysilicon layer, four metal layers (1P4M) complementary metal-oxide semiconductor (CMOS) process with custom top metal. The design aspects of the optimal scan controller are also discussed. The test results show the gray level linearity of the correction schemes for the optimal scan strategy is acceptable by the human eye.

show abstract

Section: B Pixel Drivermentioning

confidence: 99%