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US 11,776,965 B2Granted
Light emitting display device comprising anode having at least one opening
AssigneeLG Display Co., Ltd.
InventorsEun-Hyung Lee, Soo-Won Hwang, In-Seop Jung
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Abstract
A light emitting display device includes a substrate including first subpixels, second subpixels and third subpixels; a first anode, having at least one opening, in each of the first subpixels; a second anode in each of the second subpixels, and a third anode in each of the third subpixels; a reflective insulating film at the opening of the first anode to contact the first anode under the first anode; an organic stack on each of the first anode, the second anode and the third anode; and a cathode on the organic stack.
Claims20
A light emitting display device, comprising:
- a substrate comprising first subpixels, second subpixels and third subpixels;
- a first anode, having at least one opening, in each of the first subpixels;
- a second anode in each of the second subpixels, and a third anode in each of the third subpixels;
- a reflective insulating film provided at the opening of the first anode, the reflective insulating film in contact with the first anode under the first anode;
- an organic stack on each of the first anode, the second anode and the third anode;
- and
- a cathode on the organic stack,
- wherein each of the first to third anodes comprises a stack of a reflective electrode and a transparent electrode,
- wherein the reflective electrode is located between the reflective insulating film and the transparent electrode at each of the first subpixels, and
- wherein the reflective insulating film is provided at a smaller area than an emission region of the first anode, and the at least one opening is concentrated at a center in the first anode.
7 more elements
A light emitting display device, comprising:
- a substrate comprising first subpixels and second subpixels;
- a first anode, having at least one opening, in each of the first subpixels;
- a second anode in each of the second subpixels;
- a reflective insulating film provided at the at least one opening of the first anode;
- an organic stack on the first anode and the at least one opening at each of the first subpixels, and the second anode at each of the second subpixels;
- and
- a cathode on the organic stack,
- wherein the reflective insulating film has reflectance substantially equal to or similar to that of first anode at each of the first subpixels,
- wherein each of the first anode and the second anode comprises a stack of a reflective electrode and a transparent electrode,
- wherein the reflective electrode is located between the reflective insulating film and the transparent electrode at each of the first subpixels,
- wherein the reflective electrode comprises at least one of aluminum, aluminum alloy, silver and silver alloy, and
- wherein the reflective insulating film is provided at a smaller area than an emission region of the first anode, and the at least one opening is concentrated at a center in the first anode.
9 more elements
A light emitting display device, comprising:
- a substrate comprising first subpixels, second subpixels and third subpixels;
- a first anode, having at least one opening, in each of the first subpixels;
- a second anode in each of the second subpixels, and a third anode in each of the third subpixels;
- a reflective insulating film provided at the opening of the first anode, the reflective insulating film in contact with the first anode under the first anode;
- an organic stack on each of the first anode, the second anode and the third anode;
- and
- a cathode on the organic stack,
- wherein each of the first to third anodes comprises a stack of a reflective electrode and a transparent electrode,
- wherein the reflective electrode is located between the reflective insulating film and the transparent electrode at each of the first subpixels, and
- wherein the at least one opening of the first anode is configured to compensate for a color efficiency difference between the first subpixels having the at least one openings and the second subpixels without any openings at a low grayscale.
7 more elements
Dependencies are inferred from the claim text.