DISPLAY APPARATUS

• US 20100214200A1
• Filed: 02/22/2010
• Published: 08/26/2010
• Est. Priority Date: 02/24/2009
• Status: Active Grant

• Current Assignee: OKI Electric Industry Company Limited
• Original Assignee: Oki Data Corporation (OKI Electric Industry Company Limited)
• Inventors: Igari, Tomoki, SUZUKI, Takahito
• Granted Patent: US 8,513,880 B2
• Time in Patent Office: Days
• US Class Current: 345/82
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/73267 Layer and HDI connectors
• CPC Class Codes: H01L 24/24 of an individual high density interconnect connector
• CPC Class Codes: H01L 24/82 by forming build-up interconnects at chip-level, e.g. for high density interconnects [HDI] interconnection structure between a plurality of semiconductor chips H01L23/5389
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/01005 Boron [B]
• CPC Class Codes: H01L 2924/01006 Carbon [C]
• CPC Class Codes: H01L 2924/01013 Aluminum [Al]
• CPC Class Codes: H01L 2924/01029 Copper [Cu]
• CPC Class Codes: H01L 2924/01033 Arsenic [As]
• CPC Class Codes: H01L 2924/01078 Platinum [Pt]
• CPC Class Codes: H01L 2924/01079 Gold [Au]
• CPC Class Codes: H01L 2924/10329 Gallium arsenide [GaAs]
• CPC Class Codes: H01L 2924/12041 LED
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A high-definition, high-intensity display apparatus having a plurality of semiconductor thin film light emitting elements and a plurality of linear electrodes connecting a power source to the light emitting elements, the linear electrodes being disposed so as to minimize the voltage drop across the linear electrodes.

Claims

1. A display apparatus comprising:

a plurality of parallel electrically conducting first linear electrodes extending on a planer substrate in a first direction;

a plurality of parallel electrically conducting second linear electrodes extending in a second direction orthogonal to the first direction and spaced from the first linear electrodes in a third direction orthogonal to the plane of the substrate;

a planarizing insulating film provided on the second linear electrodes at the intersections of the first and second linear electrodes to planarize the upper surfaces of the second linear electrodes;

a plurality of semiconductor thin film light emitting elements, each one having an upper surface and a lower surface, the upper surface having a first conductive electrode and a second conductive electrode, the first and second electrodes are exposed from the upper surface, and the lower surface being connected to the planarizing insulating film;

a first connection wire electrically connecting the first linear electrodes and the second conductive electrodes; and

a second connection wire electrically connecting the second linear electrodes and the first conductive electrodes.

2. The display apparatus according to claim 1, wherein

the first and second linear electrodes are insulated from each other by an interlayer insulation film provided there-between.

3. The display apparatus according to claim 2 wherein,

the first connection wire electrically connects the second conductive electrodes and portions of the first linear electrodes that are exposed from the interlayer insulation film;

and

the second connection wire electrically connects the first conductive electrodes and portions of the second linear electrodes that are exposed from the planarizing insulating film.

4. The display apparatus according to claim 1 wherein,

the planarizing insulating film is comprised of a material that transmits light emitted from the semiconductor thin film light emitting elements.

5. A display apparatus comprising:

a plurality of parallel electrically conducting first linear electrodes extending on a planer substrate in a first direction;

a plurality of parallel electrically conductive second electrodes extending in a second direction orthogonal to the first direction and spaced from the first linear electrodes in a third direction orthogonal to the plane of the substrate;

a planarizing insulating film configured to block light, the planarizing insulating film provided on and planarizing the entire upper surface of the substrate including the intersections of the first and second linear electrodes and areas other than the intersections;

a plurality of semiconductor thin film light emitting elements, each one having an upper surface and a lower surface, the upper surface having a first conductive electrode and a second conductive electrode, the first and second electrodes are exposed from the upper surface, and the lower surface being connected to the planarizing insulating film;

a first connection wire electrically connecting the first linear electrodes the second conductive electrodes; and

a second connection wire electrically connecting the second linear electrodes and the first conductive electrodes.

6. The display apparatus according to claim 5, wherein

the first and second linear electrodes are insulated from each other by an interlayer insulation film provided there-between.

7. The display apparatus according to claim 6 wherein,

the first connection wire electrically connects the second conductive electrodes and portions of the first linear electrodes that are exposed from the interlayer insulation film;

and

the second connection wire electrically connects the first conductive electrodes and portions of the second linear electrodes that are exposed from the planarizing insulating film.