CAPACITIVE INPUT DISPLAY DEVICE

• US 20100156838A1
• Filed: 12/18/2008
• Published: 06/24/2010
• Est. Priority Date: 12/18/2008
• Status: Abandoned Application

• Current Assignee: Sang-Youl Han
• Original Assignee: Sang-Youl Han
• Inventors: HAN, Sang-Youl
• Application Number:
  US12/338,999
• Publication Number:
  US 20100156838A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0447 Position sensing using the local deformation of sensor cells

Abstract

Disclosed herein is a capacitive input display device, including: a display module 10 for displaying predetermined input contents; an input module 20 including a first pole plate 21 disposed on an outer periphery of the display module 10, an elastic layer 22 which is placed on the first pole plate 21 and whose thickness is changed by application of pressure and is then elastically restored, and a second pole plate 23 placed on the elastic layer 22 so that the second pole plate 23 is spaced apart from the first pole plate 21 by a distance corresponding to the thickness of the elastic layer 22, in which at least one of the first pole plate 21 and the second pole plate 23 is composed of a plurality of segments; and a window 30 placed on the input module 20, wherein the distance between the first pole plate 21 and the second pole plate 23 is changed at overlapping positions thereof by an external pressure applied to the window 30 so that the difference in patterns of capacitance change caused by the change of the distance generate different input signals.

Claims

1. A capacitive input display device, comprising:

a display module 10 for displaying predetermined input contents;

an input module 20 including a first pole plate 21 disposed on an outer periphery of the display module 10, an elastic layer 22 which is placed on the first pole plate 21 and whose thickness is changed by application of pressure and is then elastically restored, and a second pole plate 23 placed on the elastic layer 22 so that the second pole plate 23 is spaced apart from the first pole plate 21 by a distance corresponding to the thickness of the elastic layer 22, in which at least one of the first pole plate 21 and the second pole plate 23 is composed of a plurality of segments; and

a window 30 placed on the input module 20,

wherein the distance between the first pole plate 21 and the second pole plate 23 is changed at overlapping positions thereof by an external pressure applied to the window 30 so that the difference in patterns of capacitance change caused by the change of the distance generate different input signals.

2. The capacitive input display device according to claim 1, wherein the first pole plate 21 is composed of the plurality of segments, and the second pole plate 23 is a single pole plate or is composed of two or more pole plate segments.