Abstract: It is intended to provided an image processing method, an image display unit, and a storage medium, capable of effecting an appropriate color reproduction even under a change in brightness of external illumination. In an image display unit according to the present invention wherein a desired image processing is applied to inputted image data, an tone reproduction characteristic in a dark surround of the image display unit in a dark surround and an tone reproduction characteristic in a illuminated surround of the image display unit under illumination of a predetermined luminance value are measured by a measuring means and the tone reproduction characteristic in an illuminated surround is approximated to the tone reproduction characteristic in a dark surround in a desired input tone range by a characteristic approximating means.

Abstract: A pen input apparatus includes a plurality of penpoints for drawing tracks on a recording medium such as paper, and a selector for selecting a specific penpoint from the plurality of penpoints. The input apparatus including a type recognition unit for recognizing the type of the selected penpoint (such as the color of a line which can be drawn, the thickness of the line, pen type such as ballpoint pen, sign pen or fluorescent pen), and a transmitter for transmitting the track of the penpoint as position information, and transmitting the information on the type recognized by the type recognition unit to a computer system.

Abstract: A key input device is provided for inputting digits/letters/characters/symbols by a keypad and a character input method for the key input device. In the key input device, a mode key is pressed to select one of a plurality of key matrixes for a corresponding mode, which is displayed on a display. A first directional key is used for inter-cell movement in the displayed key matrix and a second directional key is used to select an intended digit/letter/character/symbol within a cell. In the character input method, a mode with a unique key matrix is set by pressing a mode key. An intended cell is moved to within the key matrix by pressing a first directional key. An intended digit/letter/character/symbol is selected in the cell by pressing a second directional key. The selected digit/letter/character/symbol is displayed on a display.

Abstract: A light emitting diode matrix array is used as the light source of a picture projection system. Each cell of the LED matrix array has an assembly of one or more red, green and blue LEDs with metal lead structures to individually energize these LEDs. The lights emitted from the LED assembly is transmitted through one or more programmable liquid crystal plate or digital micro-mirror device to control the light transmission, and then merged together for projection as a pixel onto a screen.

Abstract: A display system for providing a user viewable visible color image includes a display for receiving color laser light so that the display, in response to color laser light, produces a viewable visible colored image; a plurality of different color laser light sources arranged in an array with each such laser light source including: a first dielectric stack for receiving and transmitting pump-beam light and being reflective to laser light over a predetermined range of wavelengths; an organic active region for receiving transmitted pump-beam light from the first dielectric stack; and a second dielectric stack for reflecting transmitted pump-beam light and laser light from the organic active region back into the organic active region. The display system projects color laser light from the array onto the display in a pattern to cause a visual image to be produced by the display.

Abstract: An input device with a pressure-sensitive element using a pressure sensing resistor. A solid elastomeric material is mounted over the pressure sensing resistor to transfer a force from the user's finger to the pressure sensitive resistor without visible deformation of the elastomeric material. This provides a comfortable button for a user which does not require the compression of a domed cap to provide pressure-sensing input. In another aspect of the invention, a pressure-sensing input element utilizes both the amount of pressure and the amount of time to determine the type of signal provided to the electronic system. In another aspect of the present invention, an input device contains a first scrolling element (e.g. a wheel) and includes a switch button mounted close to the scrolling element to activate continuous scrolling.

Abstract: Digital to analogue conversion in an AMLCD is obtained by using the column electrode capacitance as part of the digital to analogue conversion circuit by dividing columns (19) into separate sections and serially performing the conversion via switching elements (31). Alternative embodiments comprise a column driver circuit with capacitors having a (binary) divided range of capacitance or use column sub-electrodes of different widths.