Sharp Kabushiki Kaisha Corporation

Motomitsu Itoh

Tsuyoshi Ozeki

Masatoshi Tomomasa

Yusuke Masuda

Kazuhiro Nakanishi

Kazunori Mukai

A display deviceaccording to this invention includes a display panel, a drive board, a flexible wiring, and a frame. The display panelis configured to display an image on a front side. The drive boardis configured to control display driving of the display panel. The flexible wiringhaving flexibility connects the display paneland the drive boardelectrically. The frameincludes a frame portion, a sidewall, and a housing portion. The frame portionhas a frame-like shape that is opposite a peripheral area of the front side of the display panel 11. The sidewallextends from the frame portiontoward a rear side of the display panel 11 and surrounds the display panel. The housing portionis located inside the sidewalland includes the groovethat opens to the frame portion. The housing portionholds the drive board 113 fitted in the groove

Display device with a frame holding a drive board and television device having the display device

A liquid crystal display device () is provided with the following: an LED (); a liquid crystal panel (); a light guide plate () disposed so as to overlap the liquid crystal panel (); an optical member () disposed between the liquid crystal panel () and the light guide plate (); a holding member (HM) having a frame () and a chassis () for holding in a sandwiched manner the liquid crystal panel (), the optical member () and the light guide plate (); a first object of positioning determination unit () disposed at the edge of the light guide plate (); a positioning determination unit () disposed on the frame () and for determining the position of the light guide plate () in a direction following the plate surface by causing uneven engagement of the light guide plate with respect to the first object of positioning determination unit (); and a light-shielding sheet () for blocking direct incidence of light from the first object of positioning determination unit () on the liquid crystal panel () by covering at least a portion of a gap (C) formed between the positioning determination unit () and the first object of positioning determination unit () and by being provided between the light guide plate () and the liquid crystal panel ().

Image display device and television reception device

A liquid crystal display device () includes: LEDs (); a liquid crystal panel (); a light guide plate (); an exterior member that constitutes the exterior of the liquid crystal display device (), the exterior member including a frame () and a chassis () that hold the liquid crystal panel () and the light guide plate () by sandwiching these from the display surface () side and the opposite side thereto, while housing the LEDs () between the frame () and the chassis (); a screw member (SM) that affixes the frame () and the chassis () to each other by being disposed in an outer edge portion that surrounds the liquid crystal panel (); wiring members () that are connected to the LEDs (); and wiring passages () through which the wiring members () pass, the wiring passages being formed in the inner surfaces of the side walls (), which is the outer edge portions of the frame (), the wiring passages being positioned adjacent to the screw member (SM) in the direction in which the light guide plate () and the liquid crystal panel () are stacked.

Display device and television receiver device

In one embodiment of the present invention, a display device includes: a display section in which a plurality of data signal lines and a plurality of scan signal lines are provided, the display section including (i) a first region including some of the plurality of scan signal lines to which a first scan signal is sequentially supplied and (ii) a second region including the others of the plurality of scan signal lines to which a second scan signal is sequentially supplied; and waveform adjusting sections for causing the first scan signal to have a waveform, during an active period, which is different from a waveform which the second scan signal has during an active period. This allows a display device, which drives a display section divided into a plurality of regions, to reduce a difference in luminance between the regions.

Display device, control device of display device, driving method of display device, liquid crystal display device, and television receiver

One object of an embodiment of the present invention is to provide a drive control circuit for a display device which is capable of displaying high-quality color images suited for external environment, display contents or the like by fully utilizing high representational capability of a display panel of multi-primary color configuration. A liquid-crystal color-display device includes a conversion circuit for adjusting a level of primary-color signals which represent the color images to be displayed. The conversion circuit receives four primary-color signals R, G, B, Wcorresponding to four primary colors of red, green, blue and white as data signal for the color image display; then adjusts the level of these primary-color signals R, G, B, Wbased on an externally inputted primary-color control signal; and outputs primary-color signals R, G, B, Wwhich are signals obtained by the adjustment. In the primary-color signal level adjustment process for the four primary colors based on the primary-color control signal, the adjustment is performed in such a way that a relationship between the inputted primary-color signal and the adjusted primary-color signal for a white color among the four primary colors is different from a relationship between the inputted primary-color signal and the adjusted primary-color signal for each of red, green and blue colors.

Drive control circuit and drive control method for color display device

An image display device controls the video signal and the lighting circuit according to the input video signal, so as to improve contrast, so that flicker or 'bright black display', which may be caused when the display characteristics do not match the human visual characteristics, is eliminated. The image display device includes a filter circuitry, in which a filter selecting circuit changes the filter characteristic according to the difference of a video signal and memory data stored in a memory circuit. The filter circuitry selects different filter characteristics for the display change from dark to bright and for the display change from bright to dark. This prevents display flicker, which may be caused due to saturation of human visual perception with respect to changes in gradation and illuminance level.

Image display device and image display method

Out of a plurality of pairs of input pixels that face each other across a pixel to be interpolated, that pair which exhibits the highest correlation is selected. Assume that this pair is composed of a first and a second pixel, that the sign of the difference between the value of the input pixel lying adjacently on the left of the first pixel and the value of the first pixel is a, that the sign of the difference between the value of the input pixel lying adjacently on the left of the second pixel and the value of the second pixel is c, that the sign of the difference between the value of the input pixel lying adjacently on the right of the first pixel and the value of the first pixel is b, and that the sign of the difference between the value of the input pixel lying adjacently on the right of the second pixel and the value of the second pixel is d. If a&equals;c or b&equals;d, the average value of the values of the first and second pixels is determined as the value of the pixel to be interpolated.

Growing community of inventors

Osaka, Japan

Motomitsu Itoh