Abstract:
An electronic apparatus includes a substrate and an oscillation device (100) which is supported over the substrate, wherein the oscillation device (100) includes a piezoelectric element (110), a vibrating member (120) which binds one surface of the piezoelectric element (110), and a tubular support member (140) which supports an outer edge portion of the vibrating member (120) in an inner surface and is joined to the substrate so that an opening of one end side is closed by the substrate, and the support member (140) includes at least one hole (141) which connects a space, which is surrounded by the substrate and the vibrating member (120) in an inner portion of the support member (140), to an outer portion of the support member (140).
Abstract:
Luminance levels of a backlight 3 corresponding to gradations of a display image are registered as reference luminance values to a table 5a, signal levels of a drive signal to an LED driver 4 corresponding to reference luminance values are registered as luminance setting values to a table 6a, and values to correct a drive level of a liquid-crystal panel corresponding to gradations of the display image are registered as gamma correction values to a table 7a. According to the gradation of an image to be displayed, a signal level of the drive signal corresponding to the reference luminance value attained from the table 5a is obtained from the table 6a, to thereby drive the LED driver 4; and an LCD driver 2 is driven by a value obtained through correction by the gamma correction value obtained from the table 7a, to thereby display an image.
Abstract:
A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.
Abstract:
It is possible to provide a mobile telephone terminal capable of optimising the gamma characteristic in display setting and performing high-quality display based on user's taste. When an image to be displayed is selected, a CPU (13) of the mobile telephone terminal (1) judges whether to perform display setting by manual setting or automatic setting. It the CPU (13) judges that the display setting is performed by automatic setting, the CPU (13) recognizes a selected image by executing image recognition software or the like and reads out the setting content of the gamma characteristic corresponding to the image recognition result from a gamma characteristic setting table (20). It the CPU (13) judges that the display setting is to be performed by manual setting, the CPU (13) reads out the setting content of gamma characteristic corresponding to an image pattern specified on a specification screen, from the gamma characteristic setting table (20), The CPU (13) controls a display device driver (17) to display the selected image according to the setting content read out from the gamma characteristic setting table (20), on a display device (13).
Abstract:
A liquid crystal display unit includes a control section. The control section reads LED electric current data stored in a storage section based on input information to control a backlight drive section, and controls an LCD panel based on the input information and a video signal. The backlight drive section provides a backlight with an electric current according to the LED electric current data. The LED electric current data outputted to the backlight drive section from the control section and image data outputted to the LCD panel from the control section are transmitted via a common signal line.
Abstract:
A mobile communication terminal having a security function using biological information for authentication includes: authentication units for performing authentication based on at least two kinds of biological information; and a control unit for performing operational control of the authentication units. The control unit has a function of proceeding with capturing of biological information and authentication processing based on the captured biological information, performed for the respective kinds of biological information by the authentication units, in parallel.
Abstract:
A high pressure discharge lamp includes a quartz glass bulb, a conductive element which is sealed at a sealing portion of the bulb, and a pair of electrodes. Each electrode is disposed in the quartz glass bulb so as to be opposite the other and connected to the conductive element. A part of each electrode is sealed with the quartz glass bulb at the sealing portion so as to generate a contacting portion formed by the part of each electrode and the bulb. The maximum length, Lmax, of the contacting portion is defined as: Lmax((mm))≦/200/(P×D); and the minimum length, Lmin, of the contacting portion is defined as: Lmin((mm))≧0.8/(D2×&pgr;) or Lmin((mm))≧0.7 whichever is longer, where D is the diameter ((mm)) of the electrode and P is the power (W) supplied to the electrode.
Abstract:
An electron gun with a simple structure, wherein electrodes are extracted along the axis of the gun. The electron gun comprises first stepped metal cylinder 201 which is joined with cathode 200, second metal cylinder 202 which is joined with first stepped metal cylinder 201, metal plate 221 which is joined with second metal cylinder 202, insulating cylinder 220 which is joined with metal plate 221, third metal cylinder 260 which is joined with the outer surface of insulating cylinder 220, fourth metal cylinder 210 which is joined with third metal cylinder 260, stepped insulating cylinder 250 which is joined with fourth stepped metal cylinder 210, fifth metal cylinder 270 which is joined with stepped insulating cylinder 250. Fifth metal cylinder 270 is grounded. Cathode lead wire and heater lead wire are extracted from insulating cylinder 220, while anode lead wire is connected with metal cylinder 260.