摘要:
A method of and a system for controlling a brightness of a picture displayed on a plasma display panel are provided which are capable of determining whether a video signal to be fed to the plasma display panel is a signal indicating a stationary picture, reducing the brightness of a picture displayed on the plasma display panel if it is determined that a video signal to be fed to the plasma display panel is a signal indicating a stationary picture.
摘要:
In a plasma display having a charge recovery type of pulse generator for generating a driving pulse, the charge recovery type of pulse generator is prevented from short-circuiting due to a malfunction of a switch controller in a driving apparatus. A protection gate circuit is provided between the charge recovery type of pulse generator and the switch controller to block an undesirable signal generated due to a malfunction of switch controller for turning on an undesirable switch.
摘要:
A brightness controlling apparatus adjusts a brightness level of a video signal inputted thereto and outputting the video signal having the adjusted brightness level to a display apparatus so that the display apparatus displays a video image corresponding to the video signal on the basis of the video signal having the adjusted brightness level. The brightness controlling apparatus is provided with: an average brightness level detecting device for detecting average brightness levels of the video signal in a plurality of blocks respectively, the blocks being obtained by dividing the video signal to be displayed on a picture plane by the display apparatus into the blocks; an average brightness level adding device for adding to each other the average brightness levels of the video signal in at least two of the blocks at a vicinity of each other for each of the blocks, which are detected by the average brightness level detecting device; a brightness level setting device for setting the brightness level of the video signal on the basis of the added average brightness levels added by the average brightness level adding device; and an outputting device for outputting the video signal having the brightness level set by the brightness level setting device to the display apparatus as the video signal having the adjusted brightness level.
摘要:
A display device is designed to ensure that image processing parameters are transferred in response to switching between input video signals. The display panel is forceably stopped from being driven for a predetermined period when a video signal of an input target is switched over to another video signal.
摘要:
A method of driving a display panel is provided which can reduce power consumption. During a unit display period, the number of times of second and subsequent selective erase operations performed on one display cell of each pixel is different from the number of times of second and subsequent selective erase operations performed on another display cell emitting light of different color from that of the one display cell.
摘要:
An image processor of an image processor system acquires outputted image data from an image-data output unit, and generates first quality-adjusted image data and second quality-adjusted image data each of which has been processed under a different quality adjustment condition. The image processor controls a display to display in a display area a first time-division-comparison image having a first quality adjusted image based on the first quality-adjusted image data and a second time-division-comparison image having a second quality-adjusted image based on the second quality-adjusted image data in an alternately-switching manner. With this arrangement, the first and second quality-adjusted images can be displayed without reducing a scale of the entirety. Thus, a user can view the images processed under different quality-adjustment conditions alternately in the same size as the actual size. In addition, since motion images are switchably displayed, continuously-inputted images such as broadcast can be compared with each other in real time. Accordingly, a user can suitably compare quality of the images.
摘要:
Frame memories for delaying an input video signal for one frame respectively are connected in series. A dot interference detecting device detects variation between the input video signal and the delayed signals delayed for different frames of a pixel at the same position on a screen. When a dot interference is detected, a dot eliminating device eliminates the dot interference.
摘要:
A display controller is disclosed which, when controlling the luminance of an image to be displayed, by controlling the number of sustain pulses forming each of display signals used for a preset display period, stores in a characteristic information storage section a plurality of different characteristic information each for changing the number of sustain pulses in function of the average brightness level of each of video signals corresponding to the image to be displayed, selects one of the stored characteristic information using a selection section, detects the average brightness level of each of the video signals Sin externally supplied for displaying the image, using an APL detection section, sets the number of sustain pulses to be used to display the image by referring to the selected one of the characteristic information based on the detected average brightness level, and applies the set numbers of sustain pulses to a PDP to display the image.
摘要:
A method of driving a display panel is provided which can reduce power consumption. During a unit display period, the number of times of second and subsequent selective erase operations performed on one display cell of each pixel is different from the number of times of second and subsequent selective erase operations performed on another display cell emitting light of different color from that of the one display cell.
摘要:
A display device displays an image according to an input image signal on a display panel. The display device includes a plurality of display cells for creating the image from pixel signals with different emission colors according to the signal levels thereof. The display cells are arrayed in a matrix. The display device includes a brightness level calculation circuit for calculating emission brightness of the displayed image, and generating a brightness level signal that indicates the level of the emission brightness. The display device also includes an emission level correction circuit for correcting the signal levels of pixel signals included in the image signal for respective emission colors according to the brightness level signal.