Abstract: An OLED device for the detection of ambient light level, comprising: a) a substrate; b) one or more OLED element(s) formed on the substrate and having a common electrical connection for passing current through the OLED element(s); c) one or more transistor circuit(s) for controlling current passing through the OLED element(s); and d) a controller for measuring a current passing through the common electrical connection when the OLED element(s) and/or transistor circuit(s) are exposed to ambient light, for controlling the transistor circuit(s), and for comparing the current measured to an established current response under pre-determined ambient and OLED conditions to determine ambient light level.

Abstract: Transaction cards, transaction card systems, and methods for operating the same are provided. A transaction card has a display, a non-volatile memory having a plurality of transaction data sets each set having data for one of a plurality of transaction partners with whom a consumer holding the transaction card can execute a transaction and an input device adapted to determine a transaction partner for a transaction and to generate a transaction partner signal. A controller is adapted to receive the transaction partner signal, to select a transaction data set based upon transaction partner signal and to cause the display to present an image based upon data in the selected transaction data set, so that said image has image content that is at least in part related to a transaction that can be performed with the determined transaction partner.

Abstract: An OLED display, comprising: a) a substrate; b) a plurality of independently controlled light emitting elements formed on the substrate, the light emitting elements having an output that changes with time or use; c) a plurality of active-matrix circuits formed on the substrate for driving the light-emitting elements wherein the performance of some portion of the active matrix circuitry is altered in response to incident radiation, and wherein an incident light absorbing or reflecting layer prevents light from irradiating the portion responsive to incident radiation; d) a current measuring device for sensing the total current used by the display to produce a current signal; and e) a controller responsive to the current signal for calculating a correction signal for the light emitting elements and applying the correction signal to input image signals to produce corrected input image signals that compensate for the changes in the output of the light emitting elements.

Abstract: A circuit for detecting light comprising: a) a light-integrating photosensor circuit responsive to light for producing a variable voltage signal representing the accumulation of the light over time; and b) a measurement circuit for receiving a time measuremrfent signal and the variable voltage signal to produce an output value representing the time required for the variable voltage signal to reach a predetermined voltage level, wherein the output value is proportional to the light accumulated during the required time.

Abstract: A passive-matrix pixel light emitting display structure and a method of making same. The display structure includes display area formed on a substrate. A set of busses is provided over the substrate that extends from an edge of the substrates across a predetermined portion of the substrate. An insulating layer is provided over the busses so that only the electrode pad and the end adjacent the edge of the bus is exposed. At least three sets of first electrode segments are located over the entire display area, each set of first electrode segments extending for only a portion of the length of the substrate and each of the first electrode segments designed to be active in a different portion of the display area. One or more layers of materials wherein at least one of which comprises light-emissive materials, is located over the first electrode segments.

Abstract: A tiled display structure having one or more first light emitting tiles having a substrate with a first display area with spaced-apart electrodes. At least one layer of light-emitting material is provided between the spaced apart electrodes. A non-display area is provided with conductors for electrically connecting the spaced-apart electrodes in the display area to a connection point at the edge of the display substrate. The spaced apart electrodes producing light-emitting pixel elements when subjected to a current. One or more second light emitting tiles are also provided having a substrate with a second display area with spaced-apart electrodes and at least one layer of light-emitting material between the spaced apart electrodes. The second light emitting tiles are stacked above the non-display area of another tile substrate and in registration with the other first display area, the spaced apart electrodes of the second display producing light-emitting pixel elements when subjected to a current.

Abstract: A tiled display structure having a plurality of display tiles. Each display tile comprising a tile substrate, first electrodes located on a first side of the tile substrate, light emitting or controlling materials deposited over the first electrodes, and second electrodes deposited over the light emitting or controlling material. A back panel is provided having a plurality of back-panel conductors located on a first side of the back panel. The display tiles are mounted upon the back panel with the first side of the tile substrate adjacent to the first side of the back panel and the first and second electrodes electrically connected from the first side of the tile substrate through electrical standoff connectors to the back-panel conductors.

Abstract: A resistive touch screen, comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet having integral compressible spacer dots; d) a second conductive layer located on the flexible cover sheet between and over the integral spacer dots; and e) an insulative layer located on the second conductive layer locally over the integral spacer dots.

Abstract: A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the substantially planar surface and a peak furthest from the substantially planar surface; and d) a second conductive layer located on the substantially planar surface of the flexible sheet, the peaks of the integral compressible spacer dots extending beyond the second conductive layer located on the substantially planar surface; wherein the first and second conductive layers are positioned towards each other and separated by the integral compressible spacer dots. The integral compressible spacer dots are sized and positioned in a pattern that establishes at least one of differentiated minimum required activation forces and differentiated durability for selected areas of the touch screen.

Abstract: A touch screen comprising a flexible sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, where each spacer dot comprises a base cross section in the substantially planar surface of the flexible sheet defined by a first point or set of connected points intersecting an axis in the substantially planar surface, a second opposed point or set of connected points intersecting the axis, and first and second continuous edge segments connecting the first and second points or end points of the first and second sets of points on opposite sides of the axis, wherein the spacer dot has a variable height perpendicular to the substantially planar surface along the axis, and wherein the surface of the spacer dot extending above the base cross section is not equidistant from the mid-point of the axis between the intersections of the first and second points or sets of connected points and the axis.

Abstract: A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the substantially planar surface and a peak furthest from the substantially planar surface; and d) a second conductive layer located on the substantially planar surface of the flexible sheet, the peaks of the integral compressible spacer dots extending beyond the second conductive layer located on the substantially planar surface; wherein the first and second conductive layers are positioned towards each other and separated by the integral compressible spacer dots.

Abstract: A resistive touch screen, comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet having integral compressible spacer dots; and d) a second conductive layer located on the flexible cover sheet between and over the integral spacer dots, and having localized areas of lower conductivity over the integral compressible spacer dots relative to the conductivity of the conductive layer located on the flexible cover sheet between the integral spacer dots.

Abstract: A resistive touch screen, comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface, with a microstructured surface on the peak of each of the integral compressible spacer dots; and d) a second conductive layer located on the flexible cover sheet, the peaks of the integral compressible spacer dots extending through the second conductive layer, whereby, when a force is applied to the flexible transparent cover sheet at the location of one of the compressible spacer dots, the compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers.

Abstract: An article is described, comprising: a) a substrate having first regions having a microstructured surface and second regions not having a microstructured surface, where the first regions and second regions are relatively differentially wettable; and b) a patterned layer formed on the substrate from a coating that preferentially wets the relatively more wettable regions of the substrate. A method of making a patterned coating is also described, comprising the steps of: a) providing a substrate having first regions having a microstructured surface and second regions not having a microstructured surface, where the first regions and second regions are relatively differentially wettable; and b) coating the substrate with a coating material that preferentially wets the relatively more wettable regions of the substrate to form a patterned layer on the substrate.

Abstract: A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface; and d) a second conductive layer located on the surface of the flexible sheet, wherein the second conductive layer comprises a conductive mesh pattern and the peaks of the integral compressible spacer dots are located in non-conductive openings in the conductive mesh pattern; wherein when a minimum required activation force is applied to the touch screen at the location of one of the compressible spacer dots, the compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers.

Abstract: A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the substantially planar surface and a peak furthest from the substantially planar surface; and d) a second conductive layer located on the substantially planar surface of the flexible sheet, the peaks of the integral compressible spacer dots extending beyond the second conductive layer located on the substantially planar surface; wherein the first and second conductive layers are positioned towards each other and separated by the integral compressible spacer dots.

Abstract: A display and method for making the same are provided that can sense a force applied thereto. The display comprises a substrate, an array of individually controllable image-forming elements arranged on the substrate; and a support located proximate to the substrate. The support has an arrangement of light paths formed therein to transmit light from a light source to a light sensor. The light paths are arranged in an area that is, at least in part, co-extensive with the array. The support is elastically deformable so that an application of force to the support causes the light paths to deform in a manner that reduces the portion of light passing through light paths elastically deformed by the application of force.

Abstract: An optical converter and method for making same is provided. In accordance with the method, the present invention provides an improved apparatus and methods for fabrication of an optical converter. In one aspect of the invention a method for forming an optical converter is provided. In accordance with this method at least two light guide ribbon structures are provided, with each light guide ribbon structure formed by the steps of roll molding a substrate having a pattern of channels with each channel extending from an input edge to an output edge of said substrate and forming light guides extending along each of the channels from the input edge to the output edge. The at least two light guide ribbon structures are assembled in a stacked arrangement.

Abstract: An organic light-emitting diode lighting apparatus having an organic light-emitting diode lamp having a thermally conductive mounting member having a mounting surface on a first side and second light-emitting surface and a thin-film light-emitting structure adjacent the second light-emitting surface, the thin-film light-emitting structure comprising an anode, a light-emitting layer, and a cathode, and a thermally conductive mounting fixture having a thermally conductive mounting surface on which the thermally conductive mounting member is secured such that there is substantially continuous thermal contact across the mounting surface.

Abstract: A method for uniformly aging an OLED display device, the OLED display device including a display screen with a screen aspect ratio, the method comprising: receiving a first external video signal having a first signal aspect ratio different from the screen aspect ratio; illuminating a primary region of the OLED display in response to the first external video signal, whereby a secondary region of the OLED display is not illuminated in response to the first external video signal; receiving a second external video signal having a second signal aspect ratio different from the first external video signal aspect ratio, wherein the display area corresponding to the second signal aspect ratio includes at least a portion of each of the primary and of the secondary regions of the OLED display; generating a regional correction value corresponding to the primary and secondary regions of the OLED display; employing the regional correction value to correct the second external video signal to compensate for differential agin