Touch Sensor and Stepper Mask for Fabricating the Same

• Main Authors: KIM BYOUNGIN, JANG MINSEOK, LIM CHANG GYEONG, LEE CHEOL HUN
• Format: Patent
• Language: English; Korean
• Published: 05.10.2020
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTROGRAPHY; HOLOGRAPHY; MATERIALS THEREFOR; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS

A touch sensor comprises: a sensing cell part having a sensing cell group to which a plurality of sensing cells are electrically connected; and a group pattern having a wiring part formed outside the sensing cell part. The wiring part includes a first sub wiring part and a second sub wiring part. The first sub-wiring part includes lead wirings electrically connected to a sensing cell at one end of the sensing cell part. The second sub-wiring part is disposed outside the first sub-wiring part, and has non-lead wirings not electrically connected to the sensing cell part, wherein the non-lead wirings are provided as much as a number obtained by subtracting one from the number of group patterns repeatedly formed to form a large area touch sensor. According to the present invention, a large area touch sensor pattern can be easily formed by repeatedly patterning with a small area exposure mask. 터치센서는 다수의 감지셀이 전기적으로 연결되는 감지셀 그룹을 구비하는 감지셀부와 감지셀부의 외측에 형성되는 배선부를 구비하는 그룹 패턴을 포함한다. 배선부는 제1 서브 배선부와 제2 서브 배선부를 포함한다. 제1 서브 배선부는 감지셀부의 일측 단부 감지셀에 전기적으로 연결되는 인출배선을 구비한다. 제2 서브 배선부는 제1 서브 배선부보다 외측에 배치되고, 감지셀부와 전기적으로 연결되지 않는 비인출 배선을 구비하되, 비인출 배선은 대면적 터치센서를 형성하기 위해 반복 형성되는 그룹 패턴의 수에서 1을 뺀 수만큼 구비한다.