Journal of Semiconductors, Volume. 40, Issue 2, 022403(2019)
Mobility impact on compensation performance of AMOLED pixel circuit using IGZO TFTs
Figures & Tables(9)
Fig. 1. (Color online) (a) The fitting curve of the extracted measured mobility and (b) comparison of the measured and the simulated mobility for IGZO TFTs.
Fig. 2. (Color online) The current-to-voltage curve of IGZO TFT with measured and simulated results.
Fig. 3. (Color online) (a) IGZO TFT integrated AMOLED pixel circuit and (b) the timing diagram.
Fig. 4. (Color online) (a) The simulated transent response of
Fig. 5. (Color online) The source voltage of driving transistor with the increase of mobility for different threshold voltage shift.
Fig. 6. (Color online) The programmed current error versus mobility for different threshold voltage shift.
Fig. 7. (Color online) AMOLED pixel layout with mobility of (a) 10 and (b) 50 cm2V−1s−1.
Table 1. Values of parameters in the RPI model related to effective mobility.
View tableView in ArticleTable 1. Values of parameters in the RPI model related to effective mobility.
Parameter Value MUBAND (m2V−1s−1) 2.11 GAMMA 0.95 VAA (V) 45 550 VMIN (V) 0.02 DELTA 24 ALPHASAT 1.0 VT0 (V) 0.5 VFB (V) −2.2
Table 2. Design parameters of the proposed pixel circuit.
View tableView in ArticleTable 2. Design parameters of the proposed pixel circuit.
Parameter Value Parameter Value VSCAN (V) −5 to 20 (W/L) TS1 (μm/μm) 10/10 VEM1 (V) −5 to 20 (W/L) TS2 (μm/μm) 10/10 VEM2 (V) −5 to 20 (W/L)TEM1 (μm/μm) 10/10 VDATA (V) 5 to 10 (W/L)TEM2 (μm/μm) 10/10 EVDD (V) 15 (W/L)TD (μm/μm) 50/10 EVSS (V) −3 CS (pF) 0.3 VREF (V) 5 COLED (pF) 0.5
Tools
Get Citation
Copy Citation Text
Congwei Liao. Mobility impact on compensation performance of AMOLED pixel circuit using IGZO TFTs[J]. Journal of Semiconductors, 2019, 40(2): 022403
Paper Information
Category: Articles
Received: Oct. 16, 2017
Accepted: --
Published Online: Sep. 18, 2021
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20