公开(公告)号：US10720289B1

公开(公告)日：2020-07-21

申请号：US16553145

申请日：2019-08-27

Applicant: DARFON ELECTRONICS CORP.

Inventor： Hsin-Cheng Ho ,  Heng-Yi Huang ,  Tsai-Yu Chen ,  Hung-Chuan Cheng ,  Yang-Cheng Wu

IPC: H01H13/83 ,  H01H13/88 ,  H01H3/12 ,  H01H13/7065

Abstract: A light emitting keyboard includes a bottom board, keyswitches, and a lighting board. The lighting board is disposed between the bottom board and the keyswitches or under the bottom board and includes a flexible substrate having a first hole, multiple-light emitting diodes corresponding to the keyswitches, first and second silver-paste circuit layers formed on upper and lower surfaces of the flexible substrate respectively, a via pillar formed in the first hole to be coupled to the first and second silver-paste circuit layers, a copper layer plated on the first and second silver-paste circuit layers, and a first protection layer coated on the copper layer and having second holes. Each multiple-light emitting diode is disposed on the copper layer plated on the first silver-paste circuit layer through the corresponding second hole to be coupled to the first silver-paste circuit layer.

公开(公告)号：US20250027809A1

公开(公告)日：2025-01-23

申请号：US18762664

申请日：2024-07-03

Applicant: DARFON ELECTRONICS CORP.

Inventor： Hsin-Chi Chang ,  Yang-Cheng Wu ,  Chia-Hsiang Tung

IPC: G01H11/08 ,  G01H1/12 ,  G06F1/16

Abstract: A vibration detection device is used to execute a vibration detection method for detecting a vibrating touch pad. The vibration detection device includes a first detection module which has a first moving plate, a circuit board and a plurality of acceleration sensors. The first moving plate is movable relative to the vibrating touch pad. The circuit board is disposed on the first moving plate. The plurality of acceleration sensors is disposed on the circuit board as an array, and can abut against a plurality of measuring points on the vibrating touch pad when the first moving plate is moved close to the vibrating touch pad, so as to simultaneously detect a vibration feedback parameter generated from each of the plurality of acceleration sensors.