Patent ID: 9223435
Filing Date: 2015-12-29
Classification: G02F,G06F

Abstract:
1. A display panel comprising: a first substrate section formed on the front side of the display panel; a second substrate section which is opposed to the first substrate section; a liquid crystal; a plurality of pixel sections formed in a matrix form between the first and second substrate sections, each pixel section including a plurality of pixels; a plurality of sensor sections provided between the first substrate section and the second substrate section, each of the sensor sections having a first electrode and a second electrode configured so that an electrode-to-electrode gap between the first electrode and the second electrode is removed to bring the first electrode into contact with the second electrode as a result of a deformation of the first substrate section under pressure, the plurality of sensor sections including a first sensor section and a second sensor section, the first sensor section having a first electrode-to-electrode gap length, the second sensor section having a second electrode-to-electrode gap length, the first electrode-to-electrode gap length being different from the second electrode-to-electrode gap length and forming a smallest to largest electrode-to-electrode gap length; and a circuit for detecting the contact between the first electrode and the second electrode for each of the sensor sections such that the sensor sections turn on from the smallest to largest electrode-to-electrode gap length as a pressure is applied, so as to detect an amount of the pressure in multiple levels, wherein the first electrode is provided between the first substrate section and the liquid crystal and the second electrode is provided between the second substrate section and the liquid crystal, the plurality of sensor sections form depressed portions of different depths on the first substrate, and the first electrode is arranged on one of the depressed portions so as to form a plurality of different electrode-to-electrode gap lengths between the first electrode and the second electrode.