Abstract: A force sensing touch screen input device is a solid assembly of multiple layers including a display with a touch-sensitive external surface, a first and second electrode layers separated by a compressible dielectric structure—forming a capacitive force-sensing array, and a rigid planar substrate. One or both electrode layers may be formed by metallizing a polymer surface of the rigid substrate or by creating a conductive electrode onto an internal surface of the display. To increase reliability, each layer is permanently adhered to or formed onto an adjacent layer over its entire surface, whereby preventing internal shifts therebetween. To increase response time, the cover glass flexibility, compressible dielectric structure and the gasket structure between the cover glass and the rigid planar substrates are selected to provide elastic compression and recovery during normal operating conditions.

Abstract: A force sensing touch screen input device is a solid assembly of multiple layers including a display with a touch-sensitive external surface, a first and second electrode layers separated by a compressible dielectric structure—forming a capacitive force-sensing array, and a rigid planar substrate. One or both electrode layers may be formed by metallizing a polymer surface of the rigid substrate or by creating a conductive electrode onto an internal surface of the display. To increase reliability, each layer is permanently adhered to or formed onto an adjacent layer over its entire surface, whereby preventing internal shifts therebetween. To increase response time, the cover glass flexibility, compressible dielectric structure and the gasket structure between the cover glass and the rigid planar substrates are selected to provide elastic compression and recovery during normal operating conditions.

Abstract: The present invention provides a capacitive touch screen (1) which includes a substrate (10), a first electrode plate (20), an elastic spacer (30), a second electrode plate (40) and a transparent panel (50). The substrate (10) is made of a plate having a rim (11). The first electrode plate (20) is placed on the rim (11) of the substrate (10). The elastic spacer (30) is interposed between the first electrode plate (20) and second electrode plate (40). One of the first and second electrode plates comprises four or more electrode plates arranged along the rim (11) of the substrate (10). When a pressure is applied to the transparent panel (50), a distance (d) between the first and second electrode plate changes. Thereby, capacitances are varied at sensing points (S) corresponding to locations of the four or more electrode plates, and a touch location and a touch pressure are determined by variation rates of the measured capacitances.

Abstract: The present invention provides a capacitive touch screen (1) which includes a substrate (10), a first electrode plate (20), an elastic spacer (30), a second electrode plate (40) and a transparent panel (50). The substrate (10) is made of a plate having a rim (11). The first electrode plate (20) is placed on the rim (11) of the substrate (10). The elastic spacer (30) is interposed between the first electrode plate (20) and second electrode plate (40). One of the first and second electrode plates comprises four or more electrode plates arranged along the rim (11) of the substrate (10). When a pressure is applied to the transparent panel (50), a distance (d) between the first and second electrode plate changes. Thereby, capacitances are varied at sensing points (S) corresponding to locations of the four or more electrode plates, and a touch location and a touch pressure are determined by variation rates of the measured capacitances.

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