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Display module with pressure sensor

  • US 9,921,700 B2
  • Filed: 01/05/2016
  • Issued: 03/20/2018
  • Est. Priority Date: 07/29/2015
  • Status: Active Grant
First Claim
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1. A display module, comprising:

  • a front panel comprising an array of display pixels;

    a backlight panel disposed under the front panel;

    a pressure sensor disposed under the backlight panel and attached on the backlight panel, and the pressure sensor comprising a top electrode layer, an interlayer and a bottom electrode layer, wherein the bottom electrode layer comprises plural sub-electrodes, wherein areas of the sub-electrodes are determined according to distances between the sub-electrodes to a geometric center of the bottom electrode layer; and

    the sub-electrodes comprise a first sub-electrode, a second sub-electrode and a third sub-electrode, wherein if a first area of the first sub-electrode is smaller than a second area of the second sub-electrode and the second area of the second sub-electrode is smaller than a third area of the third sub-electrode, a first distance between the first sub-electrode and the geometric center is shorter than a second distance between the second sub-electrode and the geometric center, and the second distance between the second sub-electrode and the geometric center is shorter than a third distance between the third sub-electrode and the geometric center; and

    a panel frame disposed under the pressure sensor,wherein when an applied pressure is received by the front panel, a magnitude of the applied pressure is sensed by the pressure sensor.

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