Display device
AssigneeJapan Display Inc.
InventorShigeru Sakamoto
Life of this patent
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Abstract
To provide a display device including a pixel electrode formed on an insulating surface; a bank covering an end portion of the pixel electrode and having an opening formed therein in which the upper surface of the pixel electrode is exposed; an organic layer containing a light emitting layer and formed covering the opening; and an opposed electrode formed on the organic layer and the bank. The bank has a first layer formed on an end portion of the pixel electrode and the insulating surface, and a second layer formed on the first layer. The refractive index of the material forming the first layer is less than the refractive index of the material forming the second layer.
Claims14
A display device, comprising:
- a pixel electrode formed on an insulating surface;
- a bank covering an end portion of the pixel electrode and having an opening formed therein in which an upper surface of the pixel electrode is exposed;
- an organic layer containing a light emitting layer and formed covering the opening;
- and
- an opposed electrode formed on the organic layer and the bank, wherein
- the bank has a first layer formed on an end portion of the pixel electrode and the insulating surface, and a second layer formed on the first layer,
- a refractive index of material forming the first layer is less than a refractive index of material forming the second layer,
- the first layer has a first lateral wall that defines a first angle relative to the upper surface of the pixel electrode,
- the second layer has a second lateral wall that defines a second angle relative to the upper surface of the pixel electrode, and
- the first angle is greater than the second angle.
A display device, comprising:
- a pixel electrode formed on an insulating surface;
- a bank covering an end portion of the pixel electrode and having an opening formed therein in which an upper surface of the pixel electrode is exposed;
- an organic layer containing a light emitting layer and formed covering the opening;
- and
- an opposed electrode formed on the organic layer and the bank, wherein the bank has a first layer formed on an end portion of the pixel electrode and the insulating surface, and a second layer formed on the first layer,
- the first layer has a first lateral wall that defines a first angle relative to the upper surface of the pixel electrode,
- the second layer has a second lateral wall that defines a second angle relative to the upper surface of the pixel electrode, and
- the first angle is greater than the second angle.
Dependencies are inferred from the claim text.