40x Current Variation Reduction Enabled by an External Vt-Compensation Scheme for AMOLED Displays using a 3T2C-Pixel Circuit with Dual-Gate TFTs

conference paper
2018
Verschueren, L.

Ameys, M.

Roose, F. de

Steudel, S.

Steen, J.L.P.J. van der

Gelinck, G.H.

Kronemeijer, A.J.

Huang, C.

Tsai, C.

Huang, Y.

Yeh, M.

Heremans, P.

Myny, K.

Dehaene, W.

Genoe, J.
A novel external VT compensation method, using a simple driving scheme, is presented, enabling high resolution, yet uniform displays, regardless of the size. The uniformity can be maintained for initial VT nonuniformities as well as VT shifts occurring during operation, like bias stress. The characterized display area shows a significant reduction in current variation, transforming ~23% variation without compensation into 0.56% variation after calibration.
Topics
Flexible displaysAMOLEDCompensationCalibrationUniformityVt-shiftVariationsMetal-oxide semiconductorsDual-gate self-aligned TFT
TNO Identifier
843430
Repository link
https://resolver.tno.nl/uuid:d397efd5-3502-4ce2-92ea-b55615168c55
ISSN
0097966X
Publisher
Blackwell Publishing Ltd
Source title
Digest of Technical Papers - SID International Symposium
SID Symposium, Seminar, and Exhibition 2018, Display Week 2018. 20 May 2018 through 25 May 2018
Pages
437-440
Files
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