Patent application number | Description | Published |
20100026728 | DISPLAY DEVICE AND SIGNAL CONVERTING DEVICE - A display device includes a multi-primary-color display panel with subpixels arranged in a matrix pattern of columns and rows; and a signal converter arranged to convert a video signal, having values that represent the colors of pixels with a matrix pattern, into a multi-primary-color signal for use in the multi-primary-color display panel. The signal converter associates a value of the video signal representing the color of at least one of pixels on a p | 02-04-2010 |
20110080520 | SIGNAL CONVERSION CIRCUIT, AND MULTIPLE PRIMARY COLOR LIQUID CRYSTAL DISPLAY DEVICE HAVING THE CIRCUIT - There is provided a signal conversion circuit which is suitably used in a multiprimary liquid crystal display device (especially a multiprimary liquid crystal display device which performs display in a vertical alignment mode), and a multiprimary liquid crystal display device having such a signal conversion circuit. | 04-07-2011 |
20110128309 | MULTI-PRIMARY COLOR DISPLAY DEVICE - A multi-primary color display device according to the present invention includes pixels, each having a plurality of sub-pixels. The plurality of sub-pixels include first, second, third and fourth sub-pixels for displaying first, second, third and fourth colors having first, second, third and fourth hues. The second and third hues are adjacent to the first hue on both sides thereof on an a*b* plane of an L*a*b* colorimetric system. When a color displayed by each pixel changes from black to an optimal color of the first hue, luminance values of the plurality of sub-pixels are set such that the luminance value of the first sub-pixel starts to be increased and also the luminance values of the second and third sub-pixels start to be increased at a rate of increase lower than the rate of increase of the first sub-pixel. | 06-02-2011 |
20110210911 | SIGNAL CONVERSION CIRCUIT, AND MULTIPLE-PRIMARY-COLOR LIQUID CRYSTAL DISPLAY DEVICE PROVIDED WITH SAME - A multiprimary liquid crystal display device in which deteriorations in display quality caused by the coloration of a gray representation when viewed from an oblique direction are suppressed, and a signal conversion circuit for use in such a multiprimary liquid crystal display device are provided. | 09-01-2011 |
20110216109 | DISPLAY DEVICE - A multiple primary color display device which suppresses the reduction in the display quality when an input signal corresponding to green in an sRGB color space is input from outside is provided. A display device according to the present invention has a pixel defined by a plurality of sub pixels. The plurality of sub pixels include at least a red sub pixel for displaying red, a green sub pixel for displaying green, a blue sub pixel for displaying blue, and a yellow sub pixel for displaying yellow. When an input signal corresponding to green in the sRGB color space is input from outside, the display device according to the present invention provides display using the yellow sub pixel in addition to the green sub pixel. | 09-08-2011 |
20110227965 | MULTIPLE PRIMARY COLOR LIQUID CRYSTAL DISPLAY DEVICE AND SIGNAL CONVERSION CIRCUIT - The viewing angle characteristics of a multiprimary liquid crystal display device in which a plurality of red subpixels are provided in each pixel are improved. | 09-22-2011 |
20110242149 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 10-06-2011 |
20110254759 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 10-20-2011 |
20110254879 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal device ( | 10-20-2011 |
20120113379 | METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 05-10-2012 |
20120206326 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device according to the present invention comprises a pixel including a plurality of sub pixels. The plurality of sub pixels include a red sub pixel (R), a green sub pixel (G), a blue sub pixel (B), a yellow sub pixel (Ye) and a cyan sub pixel (C). The aperture area size of one of the cyan sub pixel (C) and the blue sub pixel (B) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G) and the yellow sub pixel (Ye); and the aperture area size of the red sub pixel (R) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G), and the yellow sub pixel (Ye). | 08-16-2012 |
20120229529 | MULTIPLE-PRIMARY-COLOR DISPLAY DEVICE - A multiple primary color display device according to the present invention includes a pixel defined by a plurality of sub pixels. The plurality of sub pixels include a first sub pixel to display a first color having a first hue, a second sub pixel to display a second color having a second hue, a third sub pixel to display a third color having a third hue, and a fourth sub pixel to display a fourth color having a fourth hue. When a color represented by the input signal is changed from black to white via a color of a prescribed hue, luminance levels of the plurality of sub pixels are set such that the luminance level of each of the first sub pixel, the second sub pixel and the third sub pixel is started to be increased without increasing the luminance level of the fourth sub pixel and such that the luminance level of the third sub pixel is increased at a lower rate than that of the luminance level of each of the first sub pixel and the second sub pixel. | 09-13-2012 |
20120281033 | LIQUID-CRYSTAL DISPLAY AND SIGNAL CONVERTING CIRCUIT - A liquid crystal display device ( | 11-08-2012 |
20120313981 | DISPLAY DEVICE - A display device ( | 12-13-2012 |
20130010014 | MULTI-PRIMARY COLOR LIQUID CRYSTAL PANEL DRIVE CIRCUIT, MULTI-PRIMARY COLOR LIQUID CRYSTAL PANEL DRIVE METHOD, LIQUID CRYSTAL DISPLAY DEVICE AND OVERDRIVE SETTING METHOD - A multi-primary-color liquid crystal panel driver ( | 01-10-2013 |
20130100179 | MULTIPLE-PRIMARY COLOR LIQUID CRYSTAL DISPLAY APPARATUS - A multi-primary-color liquid crystal display device ( | 04-25-2013 |
20130113847 | LIQUID CRYSTAL DISPLAY DEVICE - The liquid crystal display device ( | 05-09-2013 |
20130258258 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which a decrease in primary color luminance, a decrease in chroma and an increase in power consumption are suppressed. The present invention is a liquid crystal display device including a color filter substrate where color filters of at least four colors are arranged for respective pixels, wherein a color temperature of white light emitted from a display surface is less than 12000 K. | 10-03-2013 |
20130271356 | SIGNAL CONVERSION CIRCUIT AND MULTI-PRIMARY COLOR LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME - A signal conversion circuit ( | 10-17-2013 |
20140118423 | LIQUID CRYSTAL DISPLAY APPARATUS - Viewing angle characteristics on the entire display surface are improved while suppressing harmful effects such as flicker and banding caused by viewing angle improvement control. A liquid crystal display apparatus ( | 05-01-2014 |
20140253422 | LIQUID-CRYSTAL DISPLAY DEVICE - This liquid crystal display device ( | 09-11-2014 |
Patent application number | Description | Published |
20080211756 | Driving method of liquid crystal display apparatus, driving apparatus of liquid crystal display apparatus, and program thereof - 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. | 09-04-2008 |
20100238102 | DISPLAY DEVICE AND COLOR FILTER SUBSTRATE - A display device includes a pixel defined by a plurality of subpixels. The plurality of subpixels include: first and second red subpixels for displaying red; a green subpixel for displaying green; a blue subpixel for displaying blue; and a yellow subpixel for displaying yellow. | 09-23-2010 |
20110141370 | Image processing circuit, image display device, and an image processing method - The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section. | 06-16-2011 |
20110157477 | Display device, liquid crystal monitor, liquid crystal television receiver, and display method - A control section divides a single frame so that a ratio of a period corresponding to a latter sub-frame and a period corresponding to a former sub-frame ranges from 1:3 to 1:7. A divisional point of the frame is a point which allows each of the latter sub-frame and the former sub-frame to minimize a difference between an actual brightness and an expected brightness. The frame may thus be divided at the point where the difference is largest in the normal hold display, so that it is possible to minimize the difference at this point. On this account, it is possible to reduce the difference in a single frame substantially by half as compared with an arrangement for carrying out the normal hold display, and thereby suppress the excess brightness caused by the difference. | 06-30-2011 |
20110187628 | MULTI-PRIMARY COLOR DISPLAY DEVICE - A display device which exhibits functional effects in which color separation between sub-pixels constituting a pixel is hardly recognized and white line display is easily recognized as one line, in enlargement of the color reproduction range in image display using multi-primary colors, and thereby improves display quality, and provides a liquid crystal display device including such a display device. The display device displays an image constituted by pixels each including sub-pixels of four or more colors, wherein the pixels constituting the display device mainly include a pixel arranging a sub-pixel of a color having the highest brightness value in a central region of the pixel. | 08-04-2011 |
Patent application number | Description | Published |
20080225183 | Display Apparatus, Display Monitor and Television Receiver - When dividing one frame into a plurality of sub-frames to carry out image display, in a gradation range which is able to be displayed using only sub-frames other than the last sub-frame (for example, luminance ½ or less in the case of two-part division, and luminance ¾ or less in the case of four-part division), the luminance of the last sub-frame is set as the minimum luminance, and luminance display is carried out using the other sub-frames. | 09-18-2008 |
20090021534 | DISPLAY DEVICE - A display device has an improved white balance in white display and excellent display quality, and includes a plurality of pixels each including four sub-pixels More specifically, the display device includes a plurality of pixels each including: a sub-pixel pair of a red (R) sub-pixel and a green (G) sub-pixel; and a sub-pixel pair of a blue (B) sub-pixel and a green (G) sub-pixel, wherein in most of the pixels, a product of an aperture area per sub-pixel and a light amount per unit aperture area, in each of the red (R) sub-pixel and the blue (B) sub-pixel, is approximately two times that of the green (G) sub-pixel. | 01-22-2009 |
20090135213 | DISPLAY - A display device includes a pixel defined by a plurality of sub-pixels. The plurality of sub-pixels include first, second, third and fourth sub-pixels. A second hue of the second sub-pixel is closest to a first hue of the first sub-pixel in the chromaticity diagram of the L*a*b* color system, and a third hue of the third sub-pixel is closest to the first hue on the opposite side to the second hue with respect to the first hue in the chromaticity diagram of the L*a*b* color system among the hues. The luminances of the plurality of sub-pixels are set such that while a color displayed by the pixel changes from black via the first color of the first sub-pixel to white, the luminance of the first sub-pixel starts to be increased, and when the luminance of the first sub-pixel reaches a predetermined luminance, the luminance of at least one of the second sub-pixel and the third sub-pixel starts to be increased. | 05-28-2009 |
20090167657 | LIQUID CRYSTAL DISPLAY - A liquid crystal display device includes a pixel defined by at least four sub-pixels. The sub-pixels include at least one sub-pixel belonging to a first group and at least one sub-pixel belonging to a second group, the sub-pixel of the second group being different from that of the first group. The luminances of the sub-pixels are set such that if the colors represented by the pixel change from black into white while being kept achromatic, the first group of sub-pixel starts to increase in luminance first, and the second group of sub-pixel starts to increase in luminance when the luminance of the first group of sub-pixel reaches a predetermined value. | 07-02-2009 |
20090322779 | DISPLAY DEVICE, METHOD FOR GENERATING FOUR OR MORE PRIMARY COLOR SIGNALS, AND PROGRAM CAUSING COMPUTER TO EXECUTE PROCESSING FOR GENERATING FOUR OR MORE PRIMARY COLOR SIGNALS - A display device is designed to conduct a display operation using a number n of primary colors (where n is a natural number that is equal to or greater than four). The display device includes a video signal converting section that receives an m-primary-color signal representing a number m of primary colors (where is m is also a natural number that is smaller than n) and that converts the m-primary-color signal into an n-primary-color signal representing the n primary colors. The n primary colors include a color that is complementary to a particular one of the m primary colors. The video signal converting section generates the n-primary-color signal such that if a color component representing the particular primary color of the m-primary-color signal has a negative level, the complementary primary color has an increased luminance and the other non-complementary primary colors have decreased luminances compared to a situation where the color component representing the particular primary color is zero. | 12-31-2009 |
20100149227 | Display Device, Liquid Crystal Monitor, Liquid Crystal Television Receiver, and Display Method - A display device displaying an image by dividing each frame into subframes. A display section has pixels each containing a first subpixel (SP | 06-17-2010 |
20100164996 | Driving Control Apparatus of Display Apparatus, Display Method, Display Apparatus, Display Monitor, and Television Receiver - 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, in such a way as to restrain the decrease in the moving image quality on account of an insufficient response of a display module. In doing so, a grayscale within a range from the second predetermined value to the maximum value is used according to the need. As a result, overshoot driving is feasible in the first sub frame, and hence it is possible to restrain the decrease in the moving image quality due to an insufficient response of an image display panel, in all types of combinations of image signals in the current frame and the previous frame. | 07-01-2010 |
20120162545 | DRIVING METHOD OF LIQUID CRYSTAL DISPLAY APPARATUS, DRIVING APPARATUS OF LIQUID CRYSTAL DISPLAY APPARATUS, AND PROGRAM THEREOF - 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. | 06-28-2012 |
20120206507 | COLOR SIGNAL CONVERTER, DISPLAY UNIT, COLOR SIGNAL CONVERSION PROGRAM, COMPUTER-READABLE STORAGE MEDIUM STORING COLOR SIGNAL CONVERSION PROGRAM, AND COLOR SIGNAL CONVERSION METHOD - A color conversion circuit converts a three-primary-color signal PS | 08-16-2012 |
20130194319 | Color Signal Converter, Display Unit, Color Signal Conversion Program, Computer-Readable Storage Medium Storing Color Signal Conversion Program, And Color Signal Conversion Method - A color conversion circuit converts a three-primary-color signal PS | 08-01-2013 |
Patent application number | Description | Published |
20090322662 | MULTI PRIMARY COLOR DISPLAY DEVICE - A multi-primary-color display device includes a number of pixels, each of which includes a first subset including red, green and cyan subpixels and a second subset including blue and yellow subpixels. In each pixel, the subpixels included in the first subset are arranged in series in one direction, while the subpixels included in the second subset are arranged in series in the same direction as the subpixels of the first subset. | 12-31-2009 |
20100053235 | SIGNAL CONVERSION CIRCUIT AND MULTIPLE PRIMARY COLOR LIQUID CRYSTAL DISPLAY DEVICE WITH THE CIRCUIT - In one embodiment of the present invention, a signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference Δu′v′=((u′−u | 03-04-2010 |
20130010213 | SIGNAL CONVERSION CIRCUIT AND MULTIPLE PRIMARY COLOR LIQUID CRYSTAL DISPLAY DEVICE WITH THE CIRCUIT - A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference Δu′v′=((u′−u | 01-10-2013 |
20150035869 | LIQUID CRYSTAL DISPLAY - In a display apparatus having a liquid crystal panel, a change in luminance of the entire display frame when overshoot driving is performed is suppressed, while improving a viewing angle of the liquid crystal panel. A processing unit performs a high gradation display displaying a gradation higher than a gradation of an input image at one of two adjacent pixels, performs a low gradation display displaying a gradation lower than a gradation of an input image at the other of the two adjacent pixels, and switches between the high gradation display and the low gradation display for each pixel every display frame. A correction unit corrects a gradation of a pixel located adjacent to a pixel displayed with a gradation for which predetermined overshoot driving is difficult in the next display frame to a gradation for which overshoot driving stronger than the predetermined overshoot driving is possible. | 02-05-2015 |