EL display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakeshi Nishi, Noriko Ishimaru
Life of this patent
Estimating the term…
Abstract
An EL display device capable of reducing an average film resistance of an anode in an EL device as well as displaying an image with high definition, and electrical equipment including such an EL display device are provided. A light-shielding metal film (109) is provided on an anode (108) so as to conceal gaps between the pixels. Thus, an average film resistance of the anode (108) in the EL device is reduced. Furthermore, light leakage from the gaps between the pixels can be prevented, resulting in an image display with high definition.
Claims54
An EL display device comprising:
- an active-matrix substrate over which pixels are arranged, each of said pixels having a pixel electrode electrically connected to a thin-film transistor;
- and
- an EL element comprising said pixel electrode as a cathode, an EL layer, and an anode,
- wherein a metal film is provided in contact with said anode so as to conceal edges of said pixels and gaps between said pixels.
An EL display device comprising:
- an active-matrix substrate over which pixels are arranged, each of said pixels having a pixel electrode electrically connected to a thin-film transistor;
- and
- an EL element comprising said pixel electrode as a cathode, an EL layer, and an anode,
- wherein a metal film is provided between said anode and a counter substrate so as to conceal edges of said pixels and gaps between said pixels.
An EL display device comprising:
- an active-matrix substrate over which pixels are arranged, each of said pixels having a pixel electrode electrically connected to a thin-film transistor;
- and
- an EL element comprising said pixel electrode as a cathode, an EL layer, and an anode,
- wherein a metal film is provided in contact with a portion of said anode so as to conceal gaps between said pixel electrodes.
An EL display device comprising:
- an active-matrix substrate over which pixels are arranged, each of said pixels having a pixel electrode electrically connected to a thin-film transistor;
- and
- an EL element comprising said pixel electrode as a cathode, an EL layer, and an anode,
- wherein a metal film is provided between a portion of said anode and a counter substrate so as to conceal gaps between said pixel electrodes.
An EL display device comprising:
- a thin film transistor formed over a substrate;
- an EL element comprising a cathode and an anode with an EL layer interposed therebetween, said EL element electrically connected to said thin film transistor;
- and
- a metal film in contact with said anode, said metal film provided so as to be overlapped with
- a portion of said cathode.
An EL display device comprising:
- a thin film transistor formed over a substrate;
- an EL element comprising a cathode and an anode with an EL layer interposed therebetween, said EL element electrically connected to said thin film transistor;
- and
- a metal film in contact with a portion of said anode, said metal film provided so as to be overlapped with a portion of said cathode.
Dependencies are inferred from the claim text.