Eastman-kodak Company

Motorola Mobility LLC

Nitto-denko Corporation

Rohm and Haas Denmark Finance A/s

Motorola Corporation

Skc Haas Display Films Co., Ltd.

Tomohiro Ishikawa

Xiang-Dong Mi

James F Elman

Dennis J Massa

David D Kessler

Robert D Polak

Paul D Yacobucci

YuanQiao Rao

Andrew N Cady

Charles Chester Anderson

Andrew Frederick Kurtz

Thomas E Gitzinger

David M Teegarden

Janglin Chen

Zachary L Brand

Jim Zhuang

Robert P Bourdelais

Lee William Tutt

Rongguang Liang

Samuel Chen

Jehuda Greener

Kenneth Andrew Dean

Catherine A Falkner

Kelvin Nguyen

Rick Latella

Richard Dominic Bomba

Charles Warren Lander

Timothy C Schunk

Robert L Walton

Stephen C Meissner

Erica N Montbach

John M Palmeri

Laura A Weller-Brophy

Herong Lei

Steven J Neerbasch

Paul T Lubberts

Louis P Harasta, Jr

Michael L Ferranti

Theodore R Vandam

Nanocomposite films having controlled dispersion, in out-of-plane birefringence, or equivalent retardation are obtained, including films having essentially flat dispersion behavior, reverse dispersion behavior, and non-birefringence dispersion. The nanocomposite comprises film comprises metallic oxide nanoparticles dispersed in a polymer matrix. The present invention also provides a novel method for making and controlling the out-of-plane birefringence dispersion of a film using an organic-inorganic nanocomposite. The nanocomposite material exhibits high optical transmittance, low haze, and is useful in the field of liquid-crystal displays.

Control of birefringence dispersion utilizing nanocomposites

Disclosed is a touch screen and a method of touch screen having a first plurality of sensor segments coupled to first scan lines and a second plurality of sensor segments being subsections of one of the first plurality of sensor segments, the second plurality of sensor segments including second scan lines that are bundled by a multiplexer configured to aggregate output of the second plurality of sensor segments into a single transmission channel. The individual output of the multiplexed sensor segments subsections can be either combined into a single signal for processing during a normal scan, or their individual output can be processed individually for higher resolution. Using two scans, the first a normal scan, and the second a higher resolution scan, the disclosed touch screen and methods zoom in on the proximity of the touched area and scans with a higher resolution the proximity only where it is needed.

Touch screen device and methods thereof configured for a plurality of resolutions

An multi-touch detection system () separately determines each of the coordinates of multiple touches and is able to correctly pair the coordinates, the touch panel includes multiple (e.g., two or four) separate sections () to detect touches in different areas. The system () is able to operate at high refresh rates allowing speed sensitive applications to be supported.

Multi-touch detection panel with disambiguation of touch coordinates

A semitransparent display (), suitable for use with an electronic device (), is provided. The semitransparent display (), in one embodiment, includes a cholesteric liquid crystal display layer () and a translucent electroluminescent layer (), such as an organic light emitting diode device. Control circuitry () is coupled to each layer, and is configured to selectively actuate each layer. The cholesteric liquid crystal display layer () can be operated in any of a planar mode (), a focal conic mode (), or a homeotropic mode (). Segments of the cholesteric liquid crystal display layer () can be selectively actuated so as to hide and reveal user actuation targets. Capacitive sensors () can be included so that the semitransparent display () works as a touch sensitive user interface. A user can see an object, such as a hand () or stylus, from above the semitransparent display () when the hand () or stylus is placed beneath the semitransparent display ().

Semi-transparent display apparatus

A method and apparatus are provided for correcting burn-in in a flat screen display. The method includes the steps of determining a maximum cumulative luminance of each pixel () within the display () based upon a usage of the pixel, providing a modulation map () of the display () from the maximum cumulative luminance of each pixel () within the display (), transforming the modulation map () based upon the maximum cumulative luminance of groups of adjacent pixels to provide a modulation index for each pixel location of the map (), comparing the modulation indexes with a set of threshold values and adjusting a luminosity of associated pixels () of the display () when the modulation index exceeds the threshold.

Method of correcting emissive display burn-in

An electronic device () includes a display () and an LC shutter (), at least a portion of which is operatively positioned over the display (). The LC shutter () provides switching between a transparent state and a diffusive state with high image integrity, and high transmission in the transparent state. In one embodiment, the electronic device () further includes control logic () operatively coupled to the LC shutter () to provide control signals () to the LC shutter () to effect the transparent state. The LC shutter () includes a first dichroic polarizer (), such as a broadband dichroic polarizer, a specular reflective polarizer (), such as a broadband reflective polarizer, an LC cell (), and a diffusive reflective polarizer (). The LC cell () is interposed between the first dichroic polarizer () and the specular reflective polarizer (). The diffusive reflective polarizer () is interposed between the LC cell () and the specular reflective polarizer (). Related methods are also set forth.

Electronic device and LC shutter for polarization-sensitive switching between transparent and diffusive states

Disclosed is a display of a particular size that may be perceived as larger than the particular size as a result of light emitted by one or more light guides adjacent the perimeter of the display. The display may also be perceived as brighter. In particular, the display is configured to output a changing image. A light guide is disposed adjacent at least a portion of the perimeter of the display and coupled to a multicolor LED. A controller of the electronic device is configured to analyze the changing image to determine the color content. The multicolor LED is driven to emit light according to the color content of the changing image. The light guide is configured to couple light from the LED in a direction parallel to the display viewing surface, and to couple light out of the light guide in a direction away from the display viewing surface.

Devices and methods for synchronized illumination

Disclosed is reflective morphable display with multi-layered depth viewing, low power consumption and few components and a method of activating various features thereof. The disclosed display includes a bi-stable reflective cholesteric liquid display crystal (ChLCD) layered in combination with a display device such as an LCD and a quarter lambda (&#x3bb;/4) retardation film layer. Linearly polarized light emerging from the front surface of a display device is circularly polarized by the &#x3bb;/4 layer before entering the ChLCD layer. In its reflective state, the ChLCD layer receiving a portion of the ambient light having the same handedness of the ChLCD is reflected in a mirror-like manner. Also in its reflective state, when it receives light that is circularly polarized by the &#x3bb;/4 retardation film layer, the ChLCD layer acts as a shutter. A display device with depth viewing is provided as the ChLCD layer pixelated so it is configured to display font and/or other indicia.

Reflective morphable display device and method of feature activation

An electronic device () includes a display () and an LC shutter (), at least a portion of which is operatively positioned over the display (). The LC shutter () provides switching between a transparent state and a diffusive state with high image integrity, and high transmission in the transparent state. In one embodiment, the electronic device () further includes control logic () operatively coupled to the LC shutter () to provide control signals () to the LC shutter () to effect the transparent state. The LC shutter () includes a first dichroic polarizer (), such as a broadband dichroic polarizer, an LC cell (), and a diffusive reflective polarizer (). The LC cell () is interposed between the first dichroic polarizer () and the diffusive reflective polarizer (). Related methods are also set forth.

Electronic device and LC shutter with diffusive reflective polarizer

A backlight device for a display comprising (1) a side-lit light source, (2) a light guide plate and (3) a turning film comprising a light entry and a light exit surface comprising lenticular elements on the exit surface and prismatic structures on the entry surface, wherein the average values of the parameters of the features and the thickness of the film are selected to provide a peak output angle of &#xb1;10&#xb0; from normal to the light exit surface of the light guide plate and an optical gain of at least 1.25. Also disclosed are methods of making the turning film and a display incorporating the backlight.

Double-sided turning film

The invention relates to an optical element including a substrate, a wire grid on one side of said substrate, and prismatic light collimating features on the other side of said substrate

Wire grid polarizers and optical elements containing them

A method of fabricating a nanocomposite material includes generating nanoparticles in-situ with a polymer. A nanocomposite material includes a polymer having nanoparticles characterized by a dimension of not more than 50 nm.

Nanocomposite materials and an in-situ method of making such materials

Disclosed is an optical device comprising a polarizer package comprising an integrated combination of an absorbing layer and a compensator. Two of the identical polarizer packages can be crossed and used in a transmissive optical device. This polarizer package can also be used in combination with a reflective plate and a quarter wave plate in a reflective optical device. Such polarizer packages exhibit an improved viewing angle characteristic across all wavelengths of interest, has a large tolerance for compensators to be aligned relative to their preferred directions, and can be used within an LCD or emissive display system.

Optical devices of substantially identical crossed sheet polarizer packages with compensator having biaxial plate

Growing community of inventors

Rochester, NY, United States of America

Tomohiro Ishikawa