TOUCH INPUT DEVICE

A smartphone includes: a cover layer; an LCD panel which is located under the cover layer and comprises a liquid crystal layer, and a first glass layer and a second glass layer between which the liquid crystal layer is placed, wherein at least a portion of a touch sensor which senses touch in a capa...

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Bibliographic Details
Main Authors MOON, Hojun, KIM, Seyeob, YOON, Sangsic, KWON, Sunyoung, KIM, Taehoon
Format Patent
LanguageEnglish
French
German
Published 12.06.2019
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
SEALS
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Summary:A smartphone includes: a cover layer; an LCD panel which is located under the cover layer and comprises a liquid crystal layer, and a first glass layer and a second glass layer between which the liquid crystal layer is placed, wherein at least a portion of a touch sensor which senses touch in a capacitive manner is located between the first glass layer and the second glass layer; a backlight unit which is located under the LCD panel; a pressure electrode which is located under the backlight unit; and a shielding member which is located under the pressure electrode. The touch sensor comprises a plurality of drive electrodes and a plurality of receiving electrodes. A drive signal is applied to the touch sensor and a touch position is detected by a sensing signal which is outputted from the touch sensor. A magnitude of a touch pressure is detected based on a change amount of capacitance outputted from the pressure electrode.
Bibliography:Application Number: EP20160153164