Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.

Double-sided touch-sensitive panel with shield and drive combined layer

A method for operating a group of gaming machines interconnected by a network to play both primary and secondary games from the machines. Each of the gaming machines has a primary game associated with it. Play is allowed to occur on the gaming machines while a triggering event is detected. In a preferred embodiment, the triggering event is detected by monitoring an operating parameter of the gaming machines over the network, such as total coins played. A predetermined criterion or threshold is set for the operating parameter and, if the operating parameter meets the predetermined criterion, a triggering event signal is sent through the network. Upon the occurrence of the triggering event, a secondary game is initiated from a selected one of the gaming machines whereby the secondary game is common to the group of gaming machines.

Method and apparatus for implementing in video a secondary game responsive to player interaction with a primary game

Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.

Methods and systems for detecting a position-based attribute of an object using digital codes

The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.

Image Display Device

A coordinate position digitizing system comprises a position determining plate having a plurality of first parallel strip electrodes provided on one surface of a insulating layer to form plural groups thereof each connected in common and a plurality of second parallel electrodes each having the width wider than that of each of the first electrodes and provided on the other surface of the insulating layer to extend in the direction perpendicular to the first electrodes, a detecting electrode provided to face to the surface of the insulating layer on which the first electrodes are provided and connected through a predetermined capacitance to a reference potential point for producing a signal in response to a voltage obtained thereat, driving and controlling means for supplying with a constant voltage selectively to the groups of the first electrodes one after another during a first period and also supplying with the constant voltage selectively to the second electrodes one after another during a second period, and means for producing positional data defining positions of the detecting electrode on the position determining plate in both the direction of arrangement of the first electrodes and the direction of arrangement of the second electrodes in response to the signal derived from the detecting electrode.

Coordinate position digitizing system

A coordinate position digitizing system comprises a position determining plate having a plurality of first conductors extending in parallel with one another at regularly spaced intervals. A plurality of second conductors also extend in parallel with one another at regularly spaced intervals and across the first conductors. Driving and controlling means are provided in common to the first conductors and the second conductors for selectively energizing in turn one or more of the first conductors and second conductors, for example, by supplying a direct current flowing therethrough. Pick-up means, such as a magnetic flux detecting means, is movably set on the position determining plate for producing a signal in response to field variations on the position determining plate caused by the selective energization of the first conductors and second conductors. Information producing means produces positional data defining a position on the position determining plate to which the pick-up means is brought close, based on the strength of the signal drived from the pick-up means.

Coordinate position digitizing system for determining position of a pick-up element relative to a plate in horizontal and vertical directions employing sequential switching of vertical and horizontal conductors

A luminescent display tube wherein a plurality of luminescent trios and a plurality of electrode units corresponding thereto are disposed opposite to each other in a single housing, and a member forming an enclosure of each electrode unit functions also as an accelerating electrode. The invention realizes a high-luminance display tube or display cell of a small-sized structure which incorporates a plurality of luminescent trios serving as picture elements and electrode units corresponding thereto. Consequently, it becomes possible to construct a large-picture display apparatus of moderate dimensions by arraying a multiplicity of such display cells. Furthermore, a plurality of wire cathodes and first grids as well as a common second grid are grouped into an electrode unit with its enclosure functioning as the second grid, and such electrode units are arrayed correspondingly to individual luminescent trios, thereby facilitating assembly and manufacture of a desired display cell. In the electrode units constituting the display cell, each of the first grids is positioned and set by an insulator substrate and a pair of insulator walls in each unit, without any other means such as spot welding, so that the electrode unit can be produced in a sufficiently small structure, hence ensuring remarkable facility in assembly and manufacture of such small-sized display cell.

Light source display for a large picture screen

A fluorescent display apparatus includes display cells of a first type consisting of several sets of fluorescent display segments of various colors arranged in a certain order and display cells of a second type consisting of display segments equal in number and color, but opposite in the order of arrangement of colors, to the first display cells. The first and second display cells are arrayed in a matrix fashion with their lead lines aligning alternately with the intention of reducing areas used for the bend of lead lines and thereby arranging the cells closely so as to enhance the resolution of display.

Fluorescent display apparatus

A large-scale color picture display system comprises a plurality of fluorescent display cells arranged in an X-Y matrix to form a picture display device. Each display cell comprises a red, a green, and a blue fluorescent display element. Each of the display cells is provided with a horizontally-extending blind adjacent its upper edge. The blind has a black top surface to absorb light from the sun and sky, and a reflecting bottom surface to form a virtual image of part of the display cell so that a viewer situated below the color picture display device will see a picture which is continuous in the vertical direction. The reflecting bottom surface of the blind is electrically conductive and is grounded to prevent it from being electrified, for example by lightning, and to eliminate undesired radiation from the display system.

Display system comprising a plurality of display cells arranged in an X-Y matrix and a plurality of horizontal-extending blinds disposed adjacent the upper edges of the display cells in the rows of the matrix

Kunio Shikakura

Papers

Coordinate position digitizing system

Coordinate position digitizing system for determining position of a pick-up element relative to a plate in horizontal and vertical directions employing sequential switching of vertical and horizontal conductors

Light source display for a large picture screen

Fluorescent display apparatus

Display system comprising a plurality of display cells arranged in an X-Y matrix and a plurality of horizontal-extending blinds disposed adjacent the upper edges of the display cells in the rows of the matrix