摘要:
A display apparatus having a capacitive load (Cij), clamp circuits (103, 104) for clamping the potential of the capacitive load to high and low levels, power recovering circuits (103, 104) including coils for recovering power from the capacitive load and supplying the recovered power to the capacitive load, a display load rate determining part (111) for determining a display load rate, and a control part (112) is provided. When the determined display load rate is smaller than a first threshold value, the control part does not use the power recovering circuits but uses the clamp circuits to control the potential of the capacitive load. When the determined display load rate is larger than the first threshold value, the control part uses the power recovering circuits and clamp circuits to control the potential of the capacitive load.
摘要:
A method and system to reduce power consumption of a display includes using a matrix of light sources to illuminate pixels in display segments. The light sources may be light emitting diodes (LED). An LED may be associated with a display segment. The intensity level of an LED may be individually controlled.
摘要:
A capacitive-load driving circuit has a configuration in which a driving power supply source is connected to an output terminal via a driving device. The capacitive-load driving circuit has a power distributing circuit inserted between the driving power supply source and the driving device. Therefore, temperature rise (power consumption) in the capacitive-load driving circuit can be distributed.
摘要:
A capacitive-load driving circuit has a configuration in which a driving power supply source is connected to an output terminal via a driving device. The capacitive-load driving circuit has a power distributing circuit inserted between the driving power supply source and the driving device. Therefore, temperature rise (power consumption) in the capacitive-load driving circuit can be distributed.
摘要:
A method for driving a plasma display panel applies, within a subfield among the n subfields, a narrow-width pulse having a pulse width equal to or less than 2 &mgr;s to first electrodes in order to cause an erase discharge while terminating a discharge caused between the first and second electrodes, and applies a voltage pulse to third electrodes so that the voltage pulse falls at the same time as the narrow-width pulse falls.
摘要:
An apparatus for recording and/or reproducing a signal by using an opto-magnetic disc including an erasing and reproducing opto-magnetic head unit having outer and inner opto-magnetic heads, a recording and reproducing opto-magnetic head unit having outer and inner opto-magnetic heads, a first slider mechanism for moving the erasing and reproducing opto-magnetic head unit in a radial direction of the opto-magnetic disc, and a second slider mechanism for moving the recording and reproducing opto-magnetic head unit in the radial direction of the opto-magnetic disc, the erasing and reproducing opto-magnetic head unit being separated from the recording and reproducing opto-magnetic head unit by substantially 180.degree..
摘要:
In an apparatus for irradiating a magnetooptical recording medium with a linearly polarized light beam and detecting the light from the medium, the light from the magnetooptical recording medium is divided, depending on the degree of the plane of polarization, into two light beams of different intensities which are respectively converted into electrical signals for supply to a differential amplifier, wherein an electrical signal corresponding to a light beam is amplified in order to eliminate the noise component in the output signal of the differential amplifier. In addition, the apparatus is so constructed that the amplification of the electrical signal corresponding to a divided light beam is controlled in response to the electrical signals corresponding to the divided light beams.
摘要:
In general, in one aspect, an apparatus receives pixels associated with an image destined for an external display and determines a reduced backlight brightness for the external display and corresponding changes to the pixels to approximate overall quality of the image with current backlight brightness. Backlight commands are generated for the reduced backlight brightness and the pixels are enhanced to correspond to the reduced backlight brightness. The enhanced pixels and the backlight commands are transmitted to the external display via a display interface that supports backlight control. The display interface may be a wireless interface or a wired (cabled) interface (e.g., display port (DP), high definition multimedia interface (HDMI), video graphics array (VGA)). The functionality of the apparatus is included in a computing device so that backlight brightness reductions and corresponding pixel changes can be made taking into account policies of the computing device and user preferences.
摘要:
Techniques are described that can be used to provide color space conversion for images and video to a display color gamut space. Some techniques provide for accessing an sRGB gamut color table, determining a color conversion matrix based on the sRGB gamut color table and chromaticity values of RGBW primary and gamma stored in the display or associated with the display, applying color space conversion to the pixels for pixels using the color conversion matrix, and applying linear correction of pixels by applying a normalization factor to the color conversion matrix. In addition, some techniques provide analysis of content gamut with respect to display gamut in HSV space, adjustment in HSV space, and conversion back to RGB space before applying color space conversion.
摘要:
In some embodiments, a display device may include a flat panel display a controller coupled to the flat panel display. The controller may be configured to determine an operating mode for the flat panel display among a plurality of operating modes including at least a first operating mode and a second operating mode. In the first operating mode, the controller may set the flat panel display to utilize a first frame rate and a first inversion mode to save power. In the second operating mode, the controller may set the flat panel display to utilize a second frame rate, a second inversion mode, and black frame insertion to improve image quality. The second frame rate may be faster than the first frame rate. The second inversion mode and black frame insertion may be mutually configured to maintain a DC balanced operation of the flat panel display. Other embodiments are disclosed and claimed.