Patent application number | Description | Published |
20150116276 | PROJECTOR - Provided is a projector that projects an image onto a screen, and detects a touch of an operating object on the screen and includes: a light source that emits laser light; a projecting unit configured to project the image onto the screen by scanning the laser light from the light source toward the screen; a light receiving unit configured to detect the laser light reflected from the operating object; and a control unit configured to determine that the operating object has touched the screen, based on change in the laser light detected by the light receiving unit. | 04-30-2015 |
20150185323 | Projector - A projector includes a projection portion, a display portion having a projection surface, movable in a pushed direction so that the projection surface is pushed, a push detection portion configured to detect movement of the display portion, a light detection portion detecting reflected light reflected by a detection object, and a control portion acquiring the position of the detection object on the projection surface on the basis of the detection result of the reflected light detected by the light detection portion when the push detection portion detects the push into the display portion. | 07-02-2015 |
20150370415 | IMAGE DISPLAY DEVICE - An image display device includes an image display component, a projection component that forms an optical image corresponding to an image displayed by the image display component, a distance measurement component having a detector that detects an indicator for performing an touch operation relative to the optical image to acquire distance information from the detector to the indicator, and a controller that determines whether or not the indicator has performed the touch operation relative to the optical image based on the distance information and relative movement information between the distance measurement component and at least one of the image display component and the projection component. | 12-24-2015 |
20160004385 | INPUT DEVICE - An input device includes a detector that detects an indicator approaching an image surface, and a processor that performs input processing based on a detection result of the detector. The processor performs preliminary determination processing depending on the detection result, and performs determination processing for an input manipulation detail of the indicator based on a result of the preliminary determination processing and the detection result. | 01-07-2016 |
Patent application number | Description | Published |
20090189923 | Laser Projector - Disclosed is a laser projector to display an image having a predetermined number of gradations by a combination of n division gradations, each being set with a maximum luminance, comprising: a storage section to store a luminance value of each of the gradations, and division signals being associated with each other, each of the division signals corresponding to an intensity of each of the division gradations, and the division gradations being combined with each other to represent the luminance value; a determination section to determine the division signal of each of the division gradations corresponding to the luminance value of each pixel which constitutes the image; and a signal output section to divide a display period of the each pixel into n intervals, and to sequentially output the division signal of each of the division gradations to a light source in a predetermined order, in each of the intervals. | 07-30-2009 |
20090262314 | Laser Projector - Disclosed in a laser projector to display an image by projecting a laser beam from a laser light source to a projection screen including an electromagnetic driven scan mirror to scan the laser beam from the laser light source, a detection unit to detect a back EMF which is generated by a drive of the electromagnetic driven scan mirror at a time of start-up of the laser projector, a first determination unit to determine whether a value of the back EMF which is detected by the detection unit exceeded a predetermined threshold or not and a light source control unit to start a lighting of the laser light source when the value of the back EMF is determined as exceeding the predetermined threshold by the determination unit. | 10-22-2009 |
20100061413 | Laser Driver Circuit and Laser Display - A laser driver circuit comprising a current supply circuit for supplying a laser diode with a current is provided. The current supply circuit comprises a voltage-to-current converter circuit, a current output line for outputting the current generated by the voltage-to-current converter circuit, a current supply line connected to the laser diode, a ground line connected to the ground, and a current path switch for selectively connecting either the current supply line or the ground line to the current output line. The laser driver circuit further comprises a current output prevention circuit for preventing the voltage-to-current converter circuit from generating the current by disconnecting the voltage input line using a voltage input switch so that the voltage is not input to the voltage-to-current converter circuit, when the current output line and the ground line are connected by the current path switch. | 03-11-2010 |
20100253860 | Projector - A projector includes: a determination section to specify a reflection position of a reflected light received by a light receiving sensor based on a horizontal synchronizing signal and a pixel clock signal of an image signal, and to determine an amplification quantity of the intensity of a reflected light reflected at the specified reflection position to be received by the light receiving sensor; an amplification section to amplify the intensity of the reflected light received by the light receiving sensor by the determined amplification quantity; an identification section to identify an external obstacle when the intensity of the amplified reflected light exceeds a predetermined threshold value; and a calculation section to calculate the position information of the external obstacle based on the timing of identifying the external obstacle, the horizontal synchronizing signal, and the pixel clock signal of the image signal. | 10-07-2010 |
20110051210 | Laser Projector - A laser projector including a laser light source, a scan unit to scan the laser beam, a scan signal generation unit to generate a pulse signal, a drive unit to drive the scan unit and a pulse pattern adjustment unit to adjust a pulse pattern, wherein the pulse pattern adjustment unit adjusts the pulse pattern to a first pulse pattern for adjusting the swing amount from a first swing amount to a second swing amount in a projection interval, adjusts the pulse pattern to a second pulse pattern for adjusting the swing amount from the second swing amount back to the first swing amount in a first-stage interval in a non-projection interval, and adjusts the pulse pattern to a third pulse pattern for keeping the swing amount at the first swing amount in a second-stage interval in the non-projection interval until a scan position returns to the projection interval. | 03-03-2011 |
20110069363 | Laser Projector - A laser projector can generate a pulse signal capable of being generated according to the resolution of the clock signal, the pulse signal having a basic period and a basic pulse width each infinitely approximated to the characteristics of the resonance frequency. Moreover, because the laser projector can generate a pulse signal capable of correcting the errors led to be included in the approximated pulse signal, the laser projector can drive the scanning section with a horizontal vibration width corresponding to the resonance frequency, and can suitably display a projected image on a projection plane. | 03-24-2011 |
20110102751 | Projector - This projector includes a laser beam emitting portion emitting a laser beam and a projecting portion projecting an image on an arbitrary projection region by scanning the projection region with the laser beam. This projector further includes a control portion controlling the laser beam emitting portion not to emit the laser beam by stopping supplying current to the laser beam emitting portion in a previously set partial scanning section within a scanning section for the laser beam. | 05-05-2011 |
20140240681 | Projector and Rear Projector - This projector includes a laser beam generation portion, an image projection portion including a scanning portion and projecting an image on a projection area, a beam receiving portion receiving the laser beam reflected by a detection object and a control portion detecting an operation performed on the projected image with the detection object on the basis of the moving state of the detection object. | 08-28-2014 |
20140300544 | Projector and Electronic Device Having Projector Function - A projector includes a laser beam scanning portion, a light detecting portion, and a control portion performing control of predicting a prediction region where a detection object exists on the basis of detection of the detection object, changing a modulation pattern of a laser beam when the laser beam is scanned on the prediction region, acquiring the position of the detection object on the basis of reflected light of the laser beam emitted in a detection object detection pattern, and setting the position of the detection object to an indication position. | 10-09-2014 |
20150043047 | Image Display Device and Mirror Driving Method Therefor - An image display device ( | 02-12-2015 |