| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 345740100 | Cathodolulminescent type | 8 |
| 20080252565 | Electron emission display device and driving method thereof - An electron emission display device may include a pixel unit configured to emit electrons from first electrodes in accordance with voltages applied to the first electrodes and second electrodes, a clock generator including first and second lookup tables storing pulse widths of clocks, the clock generator configured to select one of the first and second lookup tables in accordance with polarity signals and to output the clocks, a data driver configured to generate data signals from image signals and the clocks generated from the clock generator, and to transfer the data signals and the clocks to the first electrode, and a scan driver configured to generate scan signals and to transfer the scan signals to the second electrode. | 10-16-2008 |
| 20090179830 | IMAGE DISPLAY APPARATUS - An image display apparatus includes a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from the electron emission portion thereon, and a shielding member provided between a substrate having the electron emission portions provided thereon and an opposing substrate having the light emitting regions thereon, and a correction circuit that corrects a pixel signal for modulating the electron emission portions. The shielding member shields electrons reflected from peripheral light emitting regions adjacent to a predetermined one of the light emitting regions to the predetermined light emitting region, and irradiates electrons from the shielding member to the predetermined light emitting region. The correction circuit carries out correction of the pixel signal with a correction value corresponding to the amount of electrons shielded by the shielding member among electrons to be irradiated to the light emitting region and correction with a correction value in which the amount of electrons irradiated from the shielding member to the light emitting region. | 07-16-2009 |
| 345750100 | Vacuum fluorescent | 2 |
| 20080224959 | Display control circuit for vacuum fluorescent display - The invention provides display control circuits for Vacuum Fluorescent Displays (VFDs). The display control circuit controls a plurality of display units of the VFD and comprises an image signal generator generating a plurality of image signals, a clock signal generator generating a clock signal, and a plurality of control signal generators. Each control signal generator receives one of the image signals and the clock signal, generates a control signal for one of the display unit, and determines the duty cycle of the control signal according to the received image signal and the clock signal. The brightness of one display unit varies with the duty cycles of the corresponding control signal. The clock signal generator comprises a plurality of flip-flops coupled in series and a plurality of logic gates. | 09-18-2008 |
| 20110074660 | SERVO-ASSISTED SCANNING BEAM DISPLAY SYSTEMS USING FLUORESCENT SCREENS - Methods and systems for improving imaging quality and power efficiency of scanning beam display systems using fluorescent screens are disclosed. In various embodiments, beam shaping mechanisms for maximizing overlap between the beam cross-section and the florescent element corresponding to each color sub-pixel of the screen, as well as pulse width and timing adjustments, are introduced to reduce imaging noise and improve power efficiency of the display system. | 03-31-2011 |
| 345750200 | Field emissive (e.g., FED, Spindt, microtip, etc.) | 4 |
| 20080309592 | ELECTRON SOURCE AND IMAGE-DISPLAY APPARATUS - By preventing an electron-emitting device from being short-circuited when the discharge occurs, currents flown due to the short circuit are reduced to reduce effects of a discharge. | 12-18-2008 |
| 20090009438 | IMAGE DISPLAY APPARATUS - An image display apparatus of this invention includes a neighborhood data integration section | 01-08-2009 |
| 20090153444 | IMAGE DISPLAY APPARATUS AND MANUFACTURING METHOD THEREOF - An image display apparatus includes a face plate with a plurality of light-emitting regions, a rear plate with electron-emitting devices corresponding to the plurality of light-emitting regions, respectively, and a drive circuit that drives the electron-emitting devices. The drive circuit has a correction circuit that calculates a correction value evaluated by influence of emitted electrons from electron-emitting devices which correspond to light-emitting regions around the light-emitting region to be corrected, and corrects a signal input to the electron-emitting device corresponding to the light-emitting region to be corrected based on the correction value. The correction circuit has an adjustment circuit that adjusts the correction value based on variation of characteristics of the plurality of light-emitting regions. Therefore, an image display having improved correction performance and lesser display unevenness can be performed. | 06-18-2009 |
| 20090309814 | IMAGE DISPLAY APPARATUS AND TELEVISION APPARATUS - An image display apparatus comprising: a plurality of pixels each having an electron emitting element and a light emitting area to be irradiated by electrons from the element; and a driving circuit for outputting a driving signal that drives the element, wherein the plurality of the light emitting areas include a plurality of light emitting areas that respectively emit light emitting colors differing from each other, wherein the circuit includes a correction circuit for correcting an input signal, and wherein the correction circuit executes a correction to the input signal for a predetermined electron emitting element based on a value obtained by adjusting a value corresponding to a quantity of electrons emitted from an electron emitting element proximate to the predetermined electron emitting element by a value corresponding to the light emitting color of the light emitting area of the pixel to which the proximate electron emitting element belongs. | 12-17-2009 |
