High-performance touch sensor and manufacturing method thereof
AssigneeDongwoo Fine-Chem Co., Ltd.
InventorsYong Seok Choi, Jae Hyun Lee
Life of this patent
Estimating the term…
Abstract
Provided are a high-performance touch sensor and a method of manufacturing the same. The touch sense includes a substrate, a sense electrode part formed on the substrate, and an insulating layer formed on the sense electrode part. A pitch of a unit sense cell including the sense electrode part is in a range of 50 μm to 70 μm. A dielectric constant of the insulating layer is in a range of 6 to 10. A unit sense cell pitch and a mutual capacitance sufficient for stably identifying a user's fingerprints may be achieved and both light transmittance and visibility may be improved.
Claims16
A high-performance touch sensor comprising:
- a substrate;
- a sense electrode part formed on the substrate;
- an insulating layer formed on the sense electrode part;
- an isolation layer formed between the substrate and the sense electrode part;
- a first protective layer formed between the isolation layer and the sense electrode part;
- and
- a second protective layer formed to cover the sense electrode part and the insulating layer,
- wherein a pitch of a unit sense cell including the sense electrode part is in a range of 50 μtm to 70 μtm, and
- a dielectric constant of the insulating layer is in a range of 6 to 10
- wherein a material of the insulating layer is acryl-based resin.
A method of manufacturing a high-performance touch sensor, the method comprising:
- forming an isolation layer on a carrier substrate;
- forming a first protective later on the isolation layer;
- forming a sense electrode part on the carrier substrate;
- forming an insulating layer on the sense electrode part;
- forming a second protective layer covering the sense electrode part and the insulating layer;
- separating the carrier substrate;
- and
- bonding a base film having flexibility on the isolation layer exposed due to the separation of the carrier substrate,
- wherein a pitch of a unit sense cell including the sense electrode part is in a range of 50 μm to 70 μm, and
- a dielectric constant of the insulating layer is in a range of 6 to 10,
- wherein a material of the insulating layer is acryl-based resin.
Dependencies are inferred from the claim text.