Active matrix display device

• US 20040008311A1
• Filed: 07/11/2003
• Published: 01/15/2004
• Est. Priority Date: 08/21/1997
• Status: Active Grant

• Current Assignee: Intellectual Keystone Technology LLC
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Yudasaka, Ichio
• Granted Patent: US 6,885,148 B2
• Time in Patent Office: Days
• US Class Current: 349/139
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 50/865 comprising light absorbing layers, e.g. light-blocking layers
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/805 Electrodes
• CPC Class Codes: H10K 59/8792 comprising light absorbing layers, e.g. black layers
• CPC Class Codes: H10K 71/135 using ink-jet printing

Abstract

In order to provide an active matrix display device in which a thick insulating film is preferably formed around an organic semiconductive film of a thin film luminescent device without damaging the thin film luminescent device, the active matrix display device is provided with a bank layer (bank) along a data line (sig) and a scanning line (gate) to suppress formation of parasitic capacitance in the data line (sig), in which the bank layer (bank) surrounds a region that forms the organic semiconductive film of the thin film luminescent device by an ink-jet process. The bank layer (bank) includes a lower insulating layer formed of a thick organic material and an upper insulating layer of an organic material which is deposited on the lower insulating layer and has a smaller thickness so as to avoid contact of the organic semiconductive film with the upper insulating layer.

Claims

1. A display device comprising:

an opposite electrode; and

a plurality of pixels, each of the plurality of pixels including;

a pixel electrode; and

an organic semiconductive film deposited between the pixel electrode and the opposite electrode, the opposite electrode being formed for the plurality of pixels in common other than a region where a terminal is formed.

2. A display device comprising:

a plurality of scanning lines;

a plurality of data lines;

a plurality of common feed lines;

a plurality of pixel electrodes disposed correspondingly to intersections between the plurality of data lines and the plurality of scanning lines, each of the plurality of pixel electrodes being able to be electrically connected to a respective common feed line of the plurality of common feed lines through a transistor; and

an opposite electrode formed for the pixel electrodes in common, the terminals being not covered by the opposite electrode.

3. The display device according to claim 2, an organic semiconductive film being disposed between each of the pixel electrode and the opposite electrode.

6. The display device according to claim 2, the terminals that include a terminal connected to the plurality of common feed lines.

7. The display device according to claim 2, further comprising a scanning line driving circuit to drive the plurality of scanning lines, and the terminals being formed on peripheral region of the scanning lien driving circuit of the substrate.

8. The display device according to claim 2, further comprising a scanning line driving circuit to drive the plurality of scanning lines and a data line driving circuit to drive the plurality of data lines, and the terminals being formed on a peripheral region of the scanning line driving circuit and the data line driving circuit of the substrate.

4. A display device comprising:

a substrate;

terminals formed on the substrate;

a plurality of pixel electrodes disposed correspondingly to a display section of the substrate; and

an opposite electrode formed over the display section, an organic semiconductive film being disposed between each of the plurality of pixel electrodes and the opposite electrode, and the opposite electrode covering the terminals.

5. The display device according to claim 4, the terminals including a terminal electrically connected to the opposite electrode.