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US 11,080,501 B2Granted
Fingerprint sensing display apparatus
AssigneeLG Display Co., Ltd.
InventorsJinYeol Kim, NamYong Gong, SungPil Choi, YoungSoo Lee
Life of this patent
Estimating the term…
Abstract
Disclosed is a display device. The display device comprising a substrate, a display area including a fingerprint recognition area on the substrate, a support substrate configured to support the substrate, a fingerprint sensor positioned under a rear side of the support substrate and configured to output ultrasonic to the fingerprint recognition area, and an EMI (electromagnetic interference) shield member positioned between the support substrate and the fingerprint sensor.
Claims17
A display device comprising:
- a substrate including a display area and a non-display area, the display area including a fingerprint recognition area for sensing a fingerprint;
- a support substrate under the substrate, the support substrate supporting the substrate;
- a fingerprint sensor positioned under the support substrate, the fingerprint sensor configured to output an ultrasonic signal to the fingerprint recognition area;
- an electromagnetic interference EMI shield member between the support substrate and the fingerprint sensor, the EMI shield member shielding the fingerprint sensor from EMI;
- and
- a cushion member under the support substrate, the cushion member including an opening and the fingerprint sensor disposed in the opening of the cushion member,
- wherein the EMI shield member includes a first surface and a second surface below the first surface, and
- the first surface is disposed to face the support substrate and the second surface is disposed to face the fingerprint sensor,
- wherein the EMI shield member is configured to shield the fingerprint sensor by overlapping with the fingerprint sensor,
- wherein the EMI shield member does not entirely cover the cushion member, and
- wherein the EMI shield member includes at least one of carbon, graphene, or metal particles, and is configured to have a light-shielding ability.
8 more elements
A display apparatus comprising:
- an electroluminescence display panel including a front side and a rear side that is under front side;
- a fingerprint sensor under the rear side of the electroluminescence display panel, the fingerprint sensor configured to sense touch;
- an electromagnetic interference (EMI) shield member between the electroluminescence display panel and the fingerprint sensor, the EMI shield member configured to shield the fingerprint sensor from electrical signals generated by the electroluminescence display panel and to shield the electroluminescence display panel from electrical signals generated by the fingerprint sensor to improve an image quality of the electroluminescence display panel;
- a support substrate between the electroluminescence display panel and the EMI shield member, the support substrate configured to support both the electroluminescence display panel and the EMI shield member;
- and
- a cushion member surrounding the fingerprint sensor such that an opening is formed between the cushion member and the fingerprint sensor, wherein the EMI shield member is configured to cover the fingerprint sensor,
- wherein the electroluminescence display panel includes a fingerprint recognition area corresponding to the fingerprint sensor, and the EMI shield member overlaps only the fingerprint recognition area, and
- wherein the EMI shield member is included in a transmission and reception channel of the fingerprint sensor.
5 more elements
A display device comprising:
- an electroluminescence display panel;
- a support substrate under the electroluminescence display panel;
- a conductive shield member under the support substrate;
- a cushion member under the conductive shield member, the cushion member including an opening;
- a fingerprint sensor disposed in the opening of the cushion member;
- and
- a pressure sensor disposed under the fingerprint sensor,
- wherein the conductive shield member is disposed between the electroluminescence display panel and the fingerprint sensor, and
- wherein the pressure sensor overlaps both at least a portion of the cushion member and at least a portion of the fingerprint sensor in a same direction.
6 more elements
Dependencies are inferred from the claim text.