Display device and method of fabricating the same
AssigneeSamsung Display Co., Ltd.
InventorsByung Han Yoo, Dae-Young Lee, Chaungi Choi, Gee-Bum Kim, Jaeik Lim
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Abstract
Disclosed is a display device including a display module, and a sensor layer below the display module for detecting light reflected from the display module, and including a base layer, a sensing layer on the base layer and including a sensing element that detects the light, and an optical pattern layer between the sensing layer and the display module, and including a light-shield section defining openings arranged at intervals when viewed in a plan view, and transmission sections respectively located in the openings.
Claims20
A display device, comprising:
- a display module;
- and
- a sensor layer for detecting light reflected from a user's finger, located below the display module, and comprising:
- a base layer;
- a sensing layer on the base layer and comprising a sensing element for detecting the light and a transistor disposed on the base layer;
- and
- an optical pattern layer between the sensing layer and the display module, and comprising a light-shield section defining openings arranged at intervals in a plan view, and transmission sections respectively located in the openings,
- wherein the sensing element comprises:
- a first sensing electrode on the base layer;
- a second sensing electrode on the first sensing electrode;
- and
- a sensing part between the first sensing electrode and the second sensing electrode, and
- wherein an active region of the transistor overlaps the first sensing electrode.
A display device, comprising:
- a display module;
- and
- an optical sensor for detecting light reflected from a user's finger, located below the display module, and comprising:
- a base layer;
- a sensing layer on the base layer, and comprising a sensing element that detects the light;
- an optical pattern layer between the sensing layer and the display module, and comprising a light-shield section in which openings are arranged at an interval in a plan view, and transmission sections respectively located in the openings and enclosed by the light-shield section in a plan view;
- and
- an etch stop layer between the sensing layer and the optical pattern layer.
A method of fabricating a display device, the method comprising:
- forming an optical sensor;
- and
- attaching the optical sensor through an adhesive member to a display module, wherein forming the optical sensor comprises:
- preparing a base layer;
- forming, on the base layer, a sensing element that detects light reflected from a user's finger;
- forming, on the base layer, an insulation layer comprising an inorganic material and covering the sensing element;
- forming an etch stop layer on the insulation layer and overlapping the sensing element;
- forming, directly on the etch stop layer, transmission sections comprising a first organic material;
- and
- forming, directly on the etch stop layer, a light-shield section comprising a second organic material, and not overlapping the transmission sections.
Dependencies are inferred from the claim text.