Abstract: A data processing system has a display monitor for rendering a virtual object, and a touch screen for enabling a user to interact with the object rendered. The system is operative to enable the user to modify a shape of the object at a first location on the object. The shape is modified under control of a magnitude of a pressure registered at a second location on the touch screen substantially coinciding with the first location when viewed through the touch screen in operational use of the system.

Abstract: There is provided a touch sensitive display comprising a passive substrate, an active substrate, and a display material disposed between the passive and active substrates, wherein driving circuitry for driving a pixel of the display and touch sensing circuitry are arranged on the active substrate. The touch sensing circuitry comprises at least one component with a first and a second electrode, wherein the electrodes are arranged to displace with respect to each other in response to a touch input.

Abstract: A textile form touch sensor comprises first and second outer conductive layers, and a third layer, intermediate of the first and second layers. The third layer comprises a non-conductive textile coated with a piezoresistive material. In a preferred embodiment, the piezoresistive material is coated on the nonconductive third layer so as to form an arrangement of defined blocks of piezoresistive material, and the first, second and third layers are joined together in a series of straight lines, the lines running in between the defined blocks of piezoresistive material.

Abstract: An apparatus (1) comprising a display screen (150), the apparatus (1) further comprising means (24) for activating said display screen (150) to serve as a loudspeaker for reproducing an audio signal (A), means (20) for detecting if said display is viewed by a user of the apparatus, and means (22) for adjusting the reproduction of said audio signal (A) in order to reduce display distortion in dependence on said detecting (20) if said display screen (150) is viewed. An advantage of reproducing an audio signal (A) according to the invention is that audio properties normally causing optical distortion in the display screen (150) may be reproduced in situations where the user is not able to perceive the optical distortion. These audio properties may contribute to an advantageous reproduction of the audio signal (A).

Abstract: The present invention relates to an apparatus for detecting an input position on a screen of a display monitor. The apparatus comprises a light guiding layer (301) having an optical structure such that a fraction (304) of the light (303) incident on the layer (301) from the apparatus' exterior is confined in the layer (301). The incident light (303) is emitted by a remote input device, operable by a user, for interacting with the apparatus. The remote input device is, for example, a laser pointer (205). Light detecting means (803) in the apparatus detects the light (304) confined in the layer (301). It is thus possible to determine the input position (206) where the light (207) from the input device enters the layer (301).

Abstract: Devices (1) comprising light detectors (11-14) for detecting light and in response generating detection information, and light-guiding layers (15) comprising outer sides for guiding incident light (21) arriving at the outer sides and originating from input devices (20) towards the light detectors (11-14) are provided with converters (16) for converting the detection information into further information for taking into account one or more angles between the incident light (21) and an axis perpendicular to the light-guiding layer (15). As a result, one/two-dimensional corrections of locations of incidence can be made, and one/two-dimensional estimations of directions of user locations can be made, to adapt device parameters such as rotation, zooming, scrolling, volume, contrast, brightness or sound optimizing parameters, or to select a user from a plurality of users operating their own input devices (20).

Abstract: An active matrix display device having touch input functionality is provided. The device comprises a plurality of pixels arranged in a row and column array, each pixel comprising a pixel electrode (11) to which data voltages can be supplied by an associated data conductor (12) via a respective thin film transistor (13) having a drain terminal connected to the pixel electrode. The pixels each further comprise a body (30;70;80) which electrically connects the associated pixel electrode to another electrode (51;14) in response to touch-input to the pixel, the connection being detectable via the associated data conductor. The circuitry used to address the display can also be used to detect any touch-input to the display, including pressure-sensitive and optical touch-input. This advantageously eliminates the requirement for extra conductors to perform the touch-input detection.

Abstract: The invention relates to a display device comprising a liquid crystal material between a first substrate provided with row or selection electrodes and a second substrate provided with column or data electrodes, in which overlapping parts of the row and column electrodes define pixels, and drive means for driving the column electrodes in conformity with an image to be displayed. Such display devices are used in, for example portable apparatuses such as laptop computers, notebook computers and telephones.

Abstract: A touch sensitive display comprises pixels (18), each of the pixels (18) have a pixel electrode (22). An optical state of a pixel (18) depends on a drive voltage (VD) supplied to the pixel electrode (22). A touch sensitive elements (S1) is arranged between the pixel electrode (22) and a further electrode (40;17). The touch sensitive element (S1) has an impedance dependent on a mechanical force applied to it.

Abstract: A portable device is provided having a touch sensitive display (100) comprising an active matrix display element (101) and a touch sensitive element (103). The touch sensitive element (103) is disposed on the viewer distal side of the active matrix display element (101) thereby not affecting the display properties. The touch sensitive element (103) comprises a first and second conductive layer (113, 115) each having a plurality of conductors. The conductive layers (113, 115) sandwich a pressure sensitive layer (117) which modifies an electrical conductivity between two conductors of the two conductive layers (113, 115) in response to a pressure point resulting from an applied pressure. Thus, accurate position detection is achieved. The conductors may be aligned with the active matrix and the requirement for calibration may be obviated.

Abstract: A user of a mobile phone (20) composes a message on a display screen (21) of the mobile phone (20) by a selective application of various load levels upon various areas of the display screen (21) that correspond to keys of a virtual keypad (23). An application of a load upon a localized area of one of the keys will display one of a plurality of characters associated with the respective key. A sensed and measured level of the applied load determines which of the characters is displayed on the display screen (21).

Abstract: In a touch sensor the change in electrical characteristics (impedance, piezo-voltage) of spacing elements (13,14,15,25), provided with an conducting, resistive or piezo-electric layer (15, 25), are measured to determine the sensing area.

Abstract: In a touch sensor the change in pixel impedance is measured from the sensing area directly (passive matrix) or through the address transistors (AMLCD) associated with the sensing area.