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US 8,710,501 B2Granted
Electro-optical device, method of manufacturing the same, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorTakashi Miyazawa
Life of this patent
Estimating the term…
Abstract
An electro-optical device includes a light-emitting layer provided with a white light-emitting element; and a reflective filter layer that is located at one side of the light-emitting layer and is provided with a reflective color filter.
Claims3
An electro-optical device comprising:
- an OLED element that has a cathode, an anode, and a light-emitting layer that emits white light and is sandwiched between the cathode and the anode;
- a TFT connected to the OLED element;
- a reflective color filter that reflects light emitted by the light-emitting layer;
- and
- a transparent color filter that transmits the light emitted by the light-emitting layer;
- wherein the OLED element is arranged between the reflective color filter and the transparent color filter;
- wherein the reflective color filter has a plurality of bank portions each having a trapezoidal shape that partition a plurality of regions and a plurality of microphase-separated films are disposed in the regions partitioned by the bank portions;
- wherein a microphase-separated film of the plurality of films is constituted by phases of two or more types of polymers that are incompatible with each other and whose indices of refraction are different from each other;
- wherein the OLED element and the TFT are connected through a contact hole formed in one of the plurality of bank portions, and
- wherein the transparent color filter is partitioned in a lattice pattern by a black matrix.
7 more elements
An electronic device comprising an electro-optical device, the electro-optical device comprising:
- an OLED element that has a cathode, an anode, and a light-emitting layer that emits white light and is sandwiched between the cathode and the anode;
- a TFT connected to the OLED element;
- a reflective color filter that reflects light emitted by the light-emitting layer;
- and
- a transparent color filter which transmits the light emitted by the light-emitting layer;
- wherein the OLED element is arranged between the reflective color filter and the transparent color filter;
- wherein the reflective color filter has a plurality of bank portions each having a trapezoidal shape that partition a plurality of regions and a plurality of microphase-separated films are disposed in the regions partitioned by the bank portions;
- wherein a microphase-separated film of the plurality of films is constituted by phases of two or more types of polymers that are incompatible with each other and whose indices of refraction are different from each other;
- wherein the OLED element and the TFT are connected through a contact hole formed in one of the plurality of bank portions, and
- wherein the transparent color filter is partitioned in a lattice pattern by a black matrix.
7 more elements
Dependencies are inferred from the claim text.