A CMOS microdisplay with integrated controller utilizing improved silicon hot carrier luminescent light sources

Venter, Petrus J.; Alberts, Antonie C.; Plessis, Monuko du; Joubert, Trudi-Heleen; Goosen, Marius E.; Rensburg, Christo Janse van; Rademeyer, P.; Fauré, Nicolaas M.

doi:10.1117/12.2004277

Cited by 3 publications

(4 citation statements)

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“…To conclude, in this paper two novel CMOS microdisplays were presented with more than a factor 20 improvement over first generation microdisplay implementations as reported in [1] and [2]. The microdisplays presented in this paper are currently applied in head-wearable sports and consumer night vision applications, however numerous other applications exist as is currently exploited by competing technologies.…”

Section: Impact and Conclusionmentioning

confidence: 87%

“…First generation CMOS microdisplays in the form of a 64x8 pixel [1] and a 128x96 pixel microdisplay [2] have illustrated the feasibility of CMOS integrated microdisplays, however lacked sufficient luminance for widespread acceptance. The microdisplays reported in [1] and to some extent as reported in [2], have incorporated driver electronics on the same silicon die. However the reported microdisplays were limited to proprietary interfaces with large I/O pad count.…”

Section: Introductionmentioning

confidence: 99%

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18.3: Fully Integrated CMOS Microdisplays for Wearable Sports and HMD Applications

Goosen¹,

Venter

Plessis

et al. 2014

Symp Digest of Tech Papers

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Large market growth in head-mounted and wearable displays is predicted in the near future covering applications areas such as sport, security and entertainment. These application areas are often cost sensitive and form factor critical. In this paper two novel CMOS microdisplays are presented for application in wearable sports and head-mounted display applications. The microdisplays are implemented in a standard 0.35 μm CMOS process requiring no post-processing. The presented microdisplays offer a cost effective alternative to conventional LC and OLEDbased displays, while maintaining a small form factor.

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Section: Impact and Conclusionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

18.3: Fully Integrated CMOS Microdisplays for Wearable Sports and HMD Applications

Goosen¹,

Venter

Plessis

et al. 2014

Symp Digest of Tech Papers

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“…Each pixel is controlled via a row and column multiplexer, allowing precise addressing to each pixel. A total of 96 PWMs are implemented on the same die, one for each row, allowing for simple horizontal scanning to drive the display 8 .The FPGA can in turn configure the PAL/NTSC decoder through an I 2 C interface to alter parameters such as the gain, hue, saturation as well as removing the chrominance information for the direct formation of 8-bit greyscale images. Removing the chrominance information in the decoder simplifies the signal processing required on the FPGA to convert the YCbCr composite signal enabling more cost effective processors to be used in future implementations.…”

Section: All-cmos Night Vision Viewermentioning

confidence: 99%

“…Visible light emission from silicon was first n biased pn-junction operating in the avalanche breakdown regime myriad applications can be unlocked, ran to microdisplays 4,8 .The IQE, light extraction efficiency (LEE) and operating point of these devices constitutes the external power efficiency (EPE) of the light emitters with the EPE being improvements; with the EPE being the ratio of output optical power versus electrical input power.…”

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confidence: 99%

All-CMOS night vision viewer with integrated microdisplay

Goosen¹,

Venter

Plessis

et al. 2014

SPIE Proceedings

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The unrivalled integration potential of CMOS has made it the dominant technology for digital integrated circuits. With the advent of visible light emission from silicon through hot carrier electroluminescence, several applications arose, all of which rely upon the advantages of mature CMOS technologies for a competitive edge in a very active and attractive market. In this paper we present a low-cost night vision viewer which employs only standard CMOS technologies. A commercial CMOS imager is utilized for near infrared image capturing with a 128x96 pixel all-CMOS microdisplay implemented to convey the image to the user. The display is implemented in a standard 0.35 µm CMOS process, with no process alterations or post processing. The display features a 25 µm pixel pitch and a 3.2 mm x 2.4 mm active area, which through magnification presents the virtual image to the user equivalent of a 19-inch display viewed from a distance of 3 meters. This work represents the first application of a CMOS microdisplay in a low-cost consumer product.

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Photoluminescence Lifetime Sensor Pixels using SPADs and Silicon LEDs in Commercial CMOS

et al. 2019

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A CMOS microdisplay with integrated controller utilizing improved silicon hot carrier luminescent light sources

Cited by 3 publications

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18.3: Fully Integrated CMOS Microdisplays for Wearable Sports and HMD Applications

18.3: Fully Integrated CMOS Microdisplays for Wearable Sports and HMD Applications

All-CMOS night vision viewer with integrated microdisplay

Photoluminescence Lifetime Sensor Pixels using SPADs and Silicon LEDs in Commercial CMOS

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