摘要:
An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.
摘要:
An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.
摘要:
A system and method of pointed position detection, a presentation system, and a program for accurately detecting a pointed position based on an infrared image or the like. The configuration comprises a CCD camera for taking an image of an image display region, and a processing section that functions as a position detection means which detects a pointed position of a pointing image within an image display region that has been formed by infrared light through an optical filter that passes only infrared light. A movement magnitude computation section within the processing section detects movement of a pointer implement, based on the infrared image that was formed by infrared light and taken by the CCD camera, and a pointing coordinate detection section detects the pointed position of that pointing image in a state in which movement of the pointer implement is halted.
摘要:
A system and method of pointed position detection, a presentation system, and a program that make it possible to detect a pointed position accurately. The system of the present invention which detects a position of a light spot that has been projected into an image display region by using an infrared pointer comprises: a CCD camera that picks up an image of this image display region; a pointing coordinate detection section that is position detection means which detects a pointed position of the light spot within the image display region; and a receiver section which receive a state signal that is transmitted from the infrared pointer during a pointer operation by that infrared pointer. The pointing coordinate detection section detects a position of the light spot as the pointed position on the image display region, based on the reception timing of the state signal.
摘要:
The present invention has a object to provide a coordinate input system imparting a coordinate input function onto a transmissive screen for image display such as a rear projecting display apparatus, which permits use of a ray reflecting indicator smaller in size and lighter in weight than a light pen and to improve easiness to use. The coordinate input system of the invention has an infrared ray source 3 which projects an infrared ray onto the back surface of the transmissive screen 2 for image display, a CCD camera 4 which covers the back surface of the transmissive screen as a senses range, and an image information processing circuit 5 which generates coordinate information of a ray reflecting indicator 1 located in front of the transmissive screen 2, from output image information of the CCD camera.
摘要:
An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.
摘要:
A cholesteric liquid crystal driving device according to the present invention includes a first driving circuit for displaying one part of the image data to be displayed by a cholesteric liquid crystal on a first scanning line by driving the cholesteric liquid crystal on the first scanning line in accordance with first and second cycles; and a second driving circuit for displaying the other part of the image data to be displayed by a cholesteric liquid crystal on a second scanning line by driving the cholesteric liquid crystal on the second scanning line in accordance with a third or fourth cycle.
摘要:
The present invention is adapted to make all the pixels of electrophoretic display 17 white (step S103) when light no longer incomes on the face of electrophoretic display 17 (“Yes” at step S102) . When someone places the face of electrophoretic display 17 on a contact glass of a copy machine to copy the contents on electrophoretic display 17 as they are, all the contents currently displayed on electrophoretic display 17 is deleted. As the result, the present invention can prevent the contents on electrophoretic display 17 from being easily copied by the copy machine as they are.
摘要:
A writing device is provided for color electronic paper which is capable of performing full color display. The writing device includes a head unit, a head unit moving mechanism which moves the head unit in a first direction, a feeding mechanism which moves electronic paper, and a controller. The head unit includes a writing head, an LED which emits light of three primary colors, an image sensing element consisting of a CMOS sensor, and an optical system. The writing head includes an optically transparent head main portion provided with pixel electrodes, and a common electrode (counter electrode). In the controller, an arrangement of three types of microcapsules in a microcapsule layer is detected to perform electric field formation for each of the pixel electrodes based on a detection result.
摘要:
An electro-optical apparatus includes a display unit including a plurality of pixels, a plurality of pixel electrodes, each of the plurality of pixel electrodes being provided for the pixel, a common electrode facing the plurality of pixel electrodes, an electro-optical layer disposed between the plurality of pixel electrodes and the common electrode, a plurality of holding capacitors, each of the plurality of holding capacitors being provided for the pixel, a capacitance line connected to the electrode of the holding capacitor, and a control unit that controls the potentials of the plurality of pixel electrodes, the common electrode, and the capacitance line. The control unit executes, during an image display period in which an image is displayed in a display unit in which the pixels are arranged, a capacitance line potential change operation that changes the potential of the capacitance line in tandem with the potential of the common electrode so that the potential difference between the potential of the capacitance line and the potential of the common electrode decreases.