Display element drive circuit and display apparatus

Details Display element drive circuit and display apparatus Display element drive circuit and display apparatus

2011-04-19

2011-04-19

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000

Reexamination Certificate

active

07928932

ABSTRACT:
A display element drive circuit includes a first circuit which holds as a voltage component electric charges based on a gradation signal corresponding to display data, a second circuit which supplies the gradation signal to the electric charge holding circuit at a timing of application of a selection signal, current control type display elements, and a third circuit which generates a driving current based on the voltage component held in the first circuit and supplies the generated driving current to the display element. One of the second and third circuits includes at least one field effect transistor. The field effect transistor includes gate, source and drain electrodes, and a source-side parasitic capacitance formed between the gate and source electrodes and a drain-side parasitic capacitance formed between the gate and drain electrodes of the field effect transistor have different capacitance values.

REFERENCES:
patent: 5166085 (1992-11-01), Wakai et al.
patent: 7091940 (2006-08-01), Tsujimura et al.
patent: 7355571 (2008-04-01), Yamada et al.
patent: 2002/0187573 (2002-12-01), Kido
patent: 2003/0089910 (2003-05-01), Inukai
patent: 2003/0201955 (2003-10-01), Song et al.
patent: 2003/0214522 (2003-11-01), Kageyama et al.
patent: 2004/0007989 (2004-01-01), Li
patent: 2004/0142502 (2004-07-01), Yoo et al.
patent: 2004/0246210 (2004-12-01), Azami
patent: 2005/0056837 (2005-03-01), Ohtani et al.
patent: 2005/0139824 (2005-06-01), Park
patent: 61-131481 (1986-06-01), None
patent: 2003-84686 (2003-03-01), None
patent: 2003-158133 (2003-05-01), None
patent: 2003-302936 (2003-10-01), None
patent: 2004-12897 (2004-01-01), None
patent: 2004-93774 (2004-03-01), None
patent: 2004-96100 (2004-03-01), None
Japanese Office Action dated Mar. 16, 2010 and English translation therof issued in counterpart Japanese Application NO. 2004-279268.

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