Abstract: Pixels belong to any of a plurality of pixel groups. The pixel groups each include first pixels and second pixels. A three-dimensional image display apparatus polarizes light to be emitted from the first pixels into light having a first polarization characteristic and polarizes light to be emitted from the second pixels into light having a second polarization characteristic. The three-dimensional image display apparatus, sets luminance of at least one of luminance of a left-eye image or luminance of a right-eye image such that the luminance of a predefined first image of the left-eye image or the right-eye image is higher than the luminance of a second image of the images. The three-dimensional image display apparatus causes the first pixels to render the first image at the set luminance on a screen and causes the second pixels to render the second image at the set luminance on the screen.

Abstract: Upscaling circuits include a difference circuit which calculates a gradation value of a target pixel with use of differentiation or difference of gradation values in vicinity to the target pixel, so that an edge of an article pictured in an image can be extracted; an averaging circuit which calculates a gradation value of a target pixel by averaging gradation values in vicinity to the target pixel; and a correlation operation circuit which calculates a correlation value indicating a correlation between difference image data and averaged image data, the difference image data being produced by carrying out the difference operation process on the divided image data, and the averaged image data being produced by carrying out the difference operation process and the averaging process on the divided image data. Further, an interpolation process is carried out on the divided image data with an interpolation method using the calculated correlation value.

Abstract: A liquid crystal display apparatus includes a plurality of areas in which response speeds greatly different from each other coexist in a pixel. A first replacement process section replaces the image data of the desired target frame with a first gradation, when a gradation transition from a current frame to a desired target frame corresponds to the above gradation transition. A second replacement process section replaces the image data of the current frame with a second value. The first value is set to a value causing the pixel to respond at a relatively higher speed without the occurrence of the excessive brightness. Without avoiding the deterioration of the image, it is possible to drive a liquid crystal display apparatus including areas whose response speeds are different from each other coexist in the pixel, such as a liquid crystal display apparatus of vertically aligned mode and normally black mode.

Abstract: In one embodiment, a display panel driving apparatus which generates, based on an input gray scale, a gray scale of a first sub-frame and a gray scale of a second sub-frame so as to display the input gray scale as a result of a summation of respective display corresponding to the first sub-frame and the second sub-frame into which one frame is divided, and the gray scale of the second sub-frame being greater than the gray scale of the first sub-frame, for a response in which the input gray scale of a subsequent frame is greater than an input gray scale of a previous frame and the input gray scale of the subsequent frame is not less than a first threshold gray scale, a gray scale of the first sub-frame in the subsequent frame is set not more than a second threshold gray scale, regardless of input gray scale of the subsequent frame. Thus, it is possible to reduce jaggy in an edge of a moving image in time-division driving.

Abstract: Data signal lines are provided to pixel arrays such that adjacent first and second pixel arrays (?, ?) and including plural pixels are provided with two data signal lines each. Each pixel includes a pixel electrode (17a). The two scanning signal lines (16a, 16b) are selected concurrently. Respective pixel electrodes (17a, 17b) for pixels (101, 102) are connected with a data signal line (15x) and a data signal line (15y), respectively. Input gray scales of data signals inputted to the display device externally is corrected such that if input gray scales of data signals to be supplied respectively to the pixel electrodes (17a, 17b) are different from each other, the input gray scales are corrected to cause a gray scale difference between post-correction gray scales to be greater than that between the input gray scales. Display is carried out with the post-correction gray scales.

Abstract: In one embodiment of the present invention, a drive unit of a display device is a drive unit that drives a display device in which one frame is divided into a plurality of sub-frames so that display of input video data is realized by summation of displays of the sub-frames, and the drive unit includes: a sub-frame data generating section generating sets of sub-frame data corresponding to the respective sub-frames; and a sub-frame period fixing section setting at least one sub-frame period to a given value regardless of a type of the input video data. This makes it possible to prevent variations of display quality with respective to various kinds of input video signals.

Abstract: The display device of an embodiment of the present invention includes a display section which includes a pixel having a plurality of sub pixels and displays an image whose luminance is based on a luminance gradation of an inputted display signal, wherein the display section is arranged so that an integral value obtained by carrying out the following steps (a) to (d) is not more than 0.0202, the step (a) of measuring surface luminance of the display section and oblique luminance of the display section viewed at 60° from a front direction of the display section, the step (b) of standardizing the front luminance and the oblique luminance so as to calculate front standardized brightness x and oblique standardized brightness, the step (c) of determining n of x^(n/2.2) so that an integral value of a difference between x^(n/2.

Abstract: An image display device that provides stereo image display with the help of special glasses (i.e. a vision aid) and that allows a viewer looking at the screen without such a vision aid to view a less strange image, and a stereo image display system including such an image display device are provided. The image display device includes: a display module capable of displaying a left eye image (L) to be viewed via a left eye portion of the vision aid and a right eye image (R) to be viewed via a right eye portion of the vision aid, the left eye and right eye images being displayed separately in time and space; and an average brightness controller capable of regulating an average brightness of the left eye image and an average brightness of the right eye image displayed on the display module in one given frame such that these average brightnesses are different from each other.

Abstract: A method of driving a vibration wave motor enables proper frequency control of an AC voltage applied to the motor according to the rotational speed difference between the actual and target rotational speeds of the motor, even if frequency-rotational speed characteristics are not stored in advance. A target rotational speed of a moving member is set. A ratio of an amount of increase or decrease in a rotational speed of the moving member to an amount of update of a frequency of the AC voltage and a rotational speed difference between the target rotational speed and an actual rotational speed of the moving member are calculated. The amount of update of the frequency is calculated by dividing the calculated rotational speed difference by the calculated ratio. The frequency of the AC voltage is updated by using the calculated amount of update of the frequency.

Abstract: In a display panel driving apparatus which generates, based on an input gray scale, a gray scale of a first sub-frame and a gray scale of a second sub-frame so as to display the input gray scale as a result of a summation of respective display corresponding to the first sub-frame and the second sub-frame into which one frame is divided, and the gray scale of the second sub-frame being greater than the gray scale of the first sub-frame, for a response in which (i) the input gray scale of a subsequent frame is greater than an input gray scale of a previous frame and (ii) the input gray scale of the subsequent frame is not less than a first threshold gray scale, a gray scale of the first sub-frame in the subsequent frame is set not more than a second threshold gray scale, regardless of input gray scale of the subsequent frame. Thus, it is possible to reduce jaggy in an edge of a moving image in time-division driving.

Abstract: A liquid crystal display apparatus includes a plurality of areas in which response speeds greatly different from each other coexist in a pixel. A first replacement process section replaces the image data of the desired target frame with a first gradation, when a gradation transition from a current frame to a desired target frame corresponds to the above gradation transition. A second replacement process section replaces the image data of the current frame with a second value. The first value is set to a value causing the pixel to respond at a relatively higher speed without the occurrence of the excessive brightness. Without avoiding the deterioration of the image, it is possible to drive a liquid crystal display apparatus including areas whose response speeds are different from each other coexist in the pixel, such as a liquid crystal display apparatus of vertically aligned mode and normally black mode.

Abstract: Provided is a display driver circuit which carries out frame interpolation and overshooting. An interpolation frame generation section has (i) a first generation mode of generating, based on an image of a key frame corresponding to a video signal, an interpolation frame so that a position of an object is changed with passage of time and (ii) a second generation mode of generating, based on the image of the key frame, an interpolation frame so that a display gradation of the object is changed with passage of time. An overshooting section causes an emphasis level in a tone transition for the interpolation frame generated according to the second generation mode to be different from that for the key frame. Thus, a configuration is proposed which can improve a moving image response characteristic in a display driver circuit which carries out frame interpolation and overshooting.

Abstract: In a display panel driving apparatus which generates gray scales corresponding to first through nth sub-frames into which one frame is divided, and drives a display panel based on the gray scales thus generated, in a rising response in which a gray scale of a previous frame is Tf and a gray scale of a subsequent frame is Tr, T1 and T2 satisfy inequalities (i) T1?Tf, (ii) T2?Tr, and (iii) T1?Tf<T2?T1, where T1 is a gray scale generated so as to correspond to a first sub-frame of the subsequent frame, and T2 is a gray scale generated so as to correspond to any one of a second through nth sub-frames of the subsequent frame. This thus provides a display panel driving apparatus capable of reducing jaggy at an edge of a moving image on a display panel.

Abstract: The liquid crystal display apparatus according to the present invention has a plurality of pixels including a red pixel, a green pixel and a blue pixel. In at least one example embodiment, each of the plurality of pixels has a plurality of subpixels including a first subpixel and a second subpixel. When the grayscale levels of input signals corresponding to the red, green and blue pixels are equal to one another at a given level, the ratio of the difference in luminance between the first and second subpixels of one of the red, green and blue pixels to the maximum luminance of that one of the red, green and blue pixels is greater than the ratio of the difference in luminance between the first and second subpixels of each one of the other two pixels to the maximum luminance of the respective one of the other two pixels.

Abstract: A liquid crystal display apparatus includes a plurality of areas in which response speeds greatly different from each other coexist in a pixel. A first replacement process section replaces the image data of the desired target frame with a first gradation, when a gradation transition from a current frame to a desired target frame corresponds to the above gradation transition. A second replacement process section replaces the image data of the current frame with a second value. The first value is set to a value causing the pixel to respond at a relatively higher speed without the occurrence of the excessive brightness. Without avoiding the deterioration of the image, it is possible to drive a liquid crystal display apparatus including areas whose response speeds are different from each other coexist in the pixel, such as a liquid crystal display apparatus of vertically aligned mode and normally black mode.

Abstract: Provided are data lines, scanning lines crossing the data lines, and a switching element in vicinity of each intersection of the data lines and the scanning lines, the data lines being connected via the switching elements with pixel electrodes arranged in matrix. Direct-type backlights arranged in parallel with the scanning lines are provided, and a backlight turning-ON drive circuit for turning the direct-type backlights in order at a predetermined frequency in sync with a scanning signal is provided. In at least one embodiment, the backlight turning-ON drive circuit includes a controller for controlling the direct-type backlights to turn ON in order in sync with the scanning signal in such a manner that the direct-type backlights are turned ON discretely over frames being continuous based on a vertical sync signal.

Abstract: In one embodiment of the present invention, data, such as video signal data, for example, for a next desired frame is first modulated or varied to facilitate a transition from a current frame to a next desired frame. A modulation processing section can be used, for example, to thus produce a corrected video signal to facilitate the current-to-next desired grayscale level transition. Thereafter, spatial filtering is then carried on the corrected video signal, using a spatial filtering section for example. As such, high frequency components in a spatial domain may be reduced, even after the spatial frequencies of an ordinary video signal and potentially those of noise have been scaled up. Therefore, undesirable noise-caused display quality degradation can be reduced or even prevented, while pixel response speed as a result of the facilitation of grayscale level transition is increased.

Abstract: A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.

Abstract: The objective of one embodiment of the present invention is to provide a liquid crystal display device which is brighter, has a wider range of viewing angles, has a faster response speed, and has improved moving image quality. When a sub pixel performs dark display, a sub frame processing section sets video data for a sub frame at a value falling within a range for dark display, and controls the luminance of the sub pixel by increasing or decreasing video data for a sub frame. When the sub pixel performs light display, the sub frame processing section sets the video data at a value falling within a range for light display, and controls the luminance of the sub pixel by increasing or decreasing the video data. The value within the range for dark display indicates luminance brighter than black, and the sub frame processing section outputs this value as the video data, even if video data for a sub pixel indicates black display.

Abstract: In one embodiment of the present invention, to time-divide one frame of an input image signal into a first-half sub frame and a second-half sub frame, the grayscale of the signal in the second-half sub frame is set at a grayscale for dark display and the grayscale of the display signal of the first-half sub frame is adjusted, when the input image signal indicates low brightness. When an image with high brightness is displayed, the grayscale of the display signal of the first-half sub frame is set at a second predetermined value smaller than the maximum value and the grayscale of the display signal of the second-half sub frame is adjusted. Thereafter, in accordance with a combination of the input image signals of the (N-1)-th frame and the N-th frame, overshoot is performed with respect to the display signal of the first-half sub frame.