Patents Assigned to NLT Technologies, Ltd.
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Patent number: 9380284Abstract: An image processing method, an image processing device and a program which can improve sharpness are provided. An image processing device 100 includes a right eye image processing unit 101 that outputs a right eye image displayed to a right eye, a left eye image processing unit 102 that outputs a left eye image displayed to a left eye, and a multi-eye image disparity unit that displays a right eye image and a left eye image to different viewpoint positions. The right eye image processing unit 101 and/or the left eye image processing unit 102 perform correction processing to an input image, and fluctuate at least one of amounts of correction of the right eye image and the left eye image with time.Type: GrantFiled: March 27, 2009Date of Patent: June 28, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Akira Inoue, Shinichi Uehara, Kenichi Takatori
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Publication number: 20160182898Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. Aperture parts of sub-pixels neighboring to a first direction include overlapping regions which overlap in a second direction and a non-overlapping region which does not overlap. Provided that a width of the aperture part in the second direction is defined as a longitudinal aperture width, the non-overlapping region includes an aperture width fluctuating region where the longitudinal aperture width changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal aperture widths of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal aperture width in roughly the center of the aperture part.Type: ApplicationFiled: December 21, 2015Publication date: June 23, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Takuya ASAI, Koji SHIGEMURA
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Publication number: 20160182897Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. An aperture part includes overlapping regions which overlap with an aperture part or another aperture part neighboring to each other in a second direction and a non-overlapping region which does not overlap. Provided that a light amount emitted from a linear aperture of the aperture part in parallel to a second direction is “longitudinal light amount”, the non-overlapping region includes longitudinal light amount fluctuating regions where the longitudinal light amount changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal light amounts of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal light amount in roughly the center of the aperture part.Type: ApplicationFiled: December 21, 2015Publication date: June 23, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Takuya ASAI, Koji SHIGEMURA
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Patent number: 9361725Abstract: Provided are an image generation apparatus, three-dimensional image display apparatus, image generation method and non-transitory computer readable medium.Type: GrantFiled: April 19, 2013Date of Patent: June 7, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Di Wu, Michiaki Sakamoto
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Patent number: 9360677Abstract: A translucent liquid crystal display panel (2) includes pixel pairs as display units each formed by a left-eye pixel (4L) and a right-eye pixel (4R) and arranged in a matrix shape. A through hole (4Ld) arranged in a color layer (4Lc) of a color filter has a slit shape whose longitudinal direction is identical to the orientation direction of a cylindrical lens (3a) constituting a lenticular lens (3). Similarly, a through hole (4Rd) arranged in a color layer (4Rc) of a color filter has a slit shape whose longitudinal direction is identical to the orientation direction of the cylindrical lens (3a) constituting the lenticular lens (3). This suppresses the phenomenon that a hue is changed by a field-of-view angle and/or an external light condition on the translucent display panel capable of displaying an image directed to a plurality of viewpoints.Type: GrantFiled: May 12, 2014Date of Patent: June 7, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventor: Shin-ichi Uehara
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Publication number: 20160154462Abstract: To provide a display device and the like capable of assisting operations by effectively presenting a sense of texture to the skin of human beings while suppressing generation of unpleasant noises. The display device includes: a visual sense display unit which displays an operation screen to be a target of touch operations done by a user by image signals supplied from outside; and a plate-type tactual sense presenting unit which is disposed on the upper side of the visual sense display unit and presents a tactual sense that can be perceived by the user on the operation screen. The tactual sense presenting unit includes X-electrodes and Y-electrodes which exhibit transparency for visible light rays and operate by voltage signals supplied from outside, and a resin exhibiting transparency for visible light rays is filled in a layered-state gap between the visual sense display unit and the tactual sense presenting unit.Type: ApplicationFiled: November 30, 2015Publication date: June 2, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Hiroshi HAGA, Futoshi NAKANISHI, Naoyasu IKEDA
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Patent number: 9349333Abstract: A control circuit conducts a drive control of a RGBW display panel to operate white pixels to light up together with red, green and blue pixels, where the drive control includes a luminance control of a backlight to reduce luminance of the backlight according to an amount of an increase in luminance of the display panel due to a lighting operation of the white pixels. The control circuit includes: a first circuit section configured to generate control signals for controlling the display panel; and a second circuit section configured to generate control signals for controlling the backlight. The first circuit section includes a redistributing circuit section configured to distribute a luminance component of each white pixel to corresponding the red, green and blue pixels and reduce luminance of the each white pixel when the display panel has a white chromaticity dependence on gradation values.Type: GrantFiled: October 7, 2014Date of Patent: May 24, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventor: Kouichi Ooga
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Publication number: 20160132115Abstract: The electronic apparatus is provided with: a visual sense display unit which displays an operation screen; a touch coordinate detection unit which detects an operation content done on displayed objects; and a tactual sense presenting unit which presents a tactual sense. The electronic apparatus includes: a tactual sense presentation control module which presents a tactual sense corresponding to the displayed objects on the operation screen via the tactual sense presenting unit; an operation content acquiring module which detects whether or not a temporal change in the touch position detected on the displayed object by the touch coordinate detection unit is equal to or less than a preset threshold value and that state continues for a preset time or longer; and a sense stimulus information output control module which outputs to outside sense stimulus information corresponding to the displayed object when that state continues for the prescribed time or longer.Type: ApplicationFiled: November 5, 2015Publication date: May 12, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Hiroshi HAGA, Yuji YAMAGUCHI
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Patent number: 9316851Abstract: A liquid crystal display device of a lateral electric field type performs display by rotating homogeneous-aligned liquid crystals by a lateral electric field substantially parallel to a substrate, which is applied across a pixel electrode and a common electrode, to increase the aperture ratio of a liquid crystal panel by narrowing the width of a black matrix provided along a data line. A source pixel electrode connected to a source electrode extends along the data line, a storage capacitance electrode formed by the same layer as the data line overlaps an adjacent scan line, the source pixel electrode is disposed so as to be connected to the storage capacitance electrode and a pixel along one side, an interlayer film is formed on the source pixel electrode, and a pixel electrode and a common electrode formed by a transparent conductive film are formed on the interlayer film.Type: GrantFiled: March 14, 2013Date of Patent: April 19, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Shinichi Nishida, Naoyuki Taguchi, Takahiko Watanabe
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Publication number: 20160104413Abstract: Provided is a pixel array having a pixel arrangement structure in which a subpixel of the first color having the highest luminosity factor, a subpixel of the second color and a subpixel of the third color having the lowest luminosity factor are arranged in matrix, a row including the subpixel of the first color and the subpixel of the second color that are alternately arranged and a row including the subpixel of the first color and the subpixel of the third color that are alternately arranged are alternately arranged, and a column including the subpixel of the first color and the subpixel of the second color that are alternately arranged and a column including the subpixel of the first color and the subpixel of the third color that are alternately arranged are alternately arranged.Type: ApplicationFiled: October 8, 2015Publication date: April 14, 2016Applicant: NLT Technologies, Ltd.Inventors: Yojiro MATSUEDA, Kenichi TAKATORI, Yoshihiro NONAKA
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Publication number: 20160097943Abstract: Provided is a display device having a viewing angle changing function, which is capable of preventing leakage of information displayed on a display screen even when there is a fault generated in changing the viewing angle. The image display device including a viewing angle changing element capable of changing a wide vision display and a narrow vision display and including a display element is provided with a detection element which detects a fault generated in the viewing angle changing element and a module for changing to a narrow vision display when there is a fault based on a detection value of the detection element. For example, when there is a fault, a transparent heater is operated to heat a liquid crystal layer to set a transparent-scattering changing element to a transparent state and forcibly set the display device to a narrow vision display.Type: ApplicationFiled: December 15, 2015Publication date: April 7, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Koji MIMURA, Ken SUMIYOSHI
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Patent number: 9307220Abstract: An image display device includes region of interest extraction unit, parallax image generation unit and 3D image display unit. Region of interest extraction unit generates depth image signal by depth image conversion employing depth threshold, depth image signal including information on distance in three-dimensional space between viewpoint and each pixel of two-dimensional image including region of interest desired to be noted by observer, depth image conversion being such that depth value indicating distance between viewpoint and each pixel of two-dimensional image is converted to depth value for 2D display when depth value is equal to or larger than depth threshold. Parallax image generation unit generates both-eye parallax image having parallax in region of interest alone, from two-dimensional image and image obtained by conversion of region of interest image representing region of interest at each of both-eye viewpoints, based on two-dimensional image and depth image signal.Type: GrantFiled: January 26, 2012Date of Patent: April 5, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Di Wu, Michiaki Sakamoto
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Patent number: 9304365Abstract: A lateral electric field type liquid crystal display device includes a pixel electrode and a common electrode made with a transparent conductive film formed on different layers on a first substrate via an insulating film. Each pixel is divided into a first region and a second region. In the first region, the pixel electrode and the common electrode formed linearly substantially in parallel to each other rotate liquid crystal molecules in the region by a lateral electric field applied between the both electrodes. In the second region, at least the electrode on a lower layer side out of the pixel electrode and the common electrode is in a plan shape, and a part where the pixel electrode and the common electrode overlap with each other forms a storage capacitance.Type: GrantFiled: August 8, 2014Date of Patent: April 5, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Takayuki Konno, Shinichi Nishida
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Patent number: 9293096Abstract: An image display device is provided which is capable of improving reproducibility of a white color. An RGB video signal is converted by a gamma converting section into three color luminance values and the maximum luminance value and minimum luminance value of the three color luminance values are calculated by a Min/Max calculating section. The first four color luminance values are calculated by an RGB luminance calculating section. A scaling factor is calculated by a scaling factor calculating section based on the first four color luminance values and the maximum luminance value. The second four color luminance values are calculated by an RGBW scaling luminance calculating section based on the first four color luminance values and on the scaling factor. An RGBW video signal corresponding to a gray level value of four color is generated by a reverse gamma converting section.Type: GrantFiled: October 21, 2008Date of Patent: March 22, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Makoto Kouno, Hiroaki Kimura
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Publication number: 20160079393Abstract: Provided are a display apparatus and a manufacturing method of the same. The display apparatus includes: a counter substrate, and an active matrix substrate including a pixel area. The active matrix substrate includes, in a non-transmissive region of each pixel, a transparent substrate, a polycrystalline silicon film, a gate insulating film, a gate electrode, an interlayer insulating film, and a drain layer including patterned conductive films, and includes, in a transparent region of each pixel, the transparent substrate, the gate insulating film and the interlayer insulating film. The interlayer insulating film includes zones where the interlayer insulating film is thinner than a part of the interlayer insulating film at the middle of each transmissive region. The zones are each located so as to extend between the neighboring patterned conductive films and are further located so as not to overlap with the transmissive regions and regions laid over LDD portions of the polycrystalline silicon film.Type: ApplicationFiled: November 19, 2015Publication date: March 17, 2016Applicant: NLT Technologies, Ltd.Inventors: Jun TANAKA, Nobuya SEKO, Kenichi HAYASHI
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Publication number: 20160077364Abstract: To provide an optical element capable of stably securing an intermediate mode between two operations modes. The optical element of the present invention includes: a first transparent substrate; a second transparent substrate provided by opposing to the first transparent substrate; a plurality of first conductive patterns and second conductive patterns disposed in parallel to each other on a face of the first transparent substrate opposing to the second transparent substrate; light transmission regions disposed between the first conductive patterns and the second conductive patterns; a transparent conductive film disposed on a face of the second transparent substrate opposing to the first transparent substrate; and an electrophoretic element disposed between the neighboring light transmission regions, which is constituted with light-shielding electrophoretic particles of a specific electric charge and a transmissive dispersion material.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventor: Kunihiro SHIOTA
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Publication number: 20160077363Abstract: There is such an issue with the well-known optical element that it is difficult to achieve a high transmittance since the transmittance is determined according to the pattern size of the light transmission regions, so that the luminance of the display device to which such optical element is mounted is deteriorated. Provided is an optical element which employs a structure in which the shape of a conductive pattern where electrophoretic particles cohere in a wide viewing field mode is formed in a comb-like shape and plural stages and plural rows of light transmission regions are disposed in the spaces between the comb teeth. This makes it possible to exclude the electrophoretic particles from the regions other than the comb-like electrode for allowing the light to transmit that part.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventor: Kunihiro SHIOTA
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Stereoscopic image display device, image processing device, and stereoscopic image processing method
Patent number: 9280951Abstract: A stereoscopic image display device, with which the influence of a CT-image by the 3D crosstalk is lightened so that a sense of discomfort is not felt by the observer even when the observing position of the observer is shifted, includes an image processing unit including: a relative position calculating unit which calculates a relative position of a stereoscopic display panel with respect to the observing position of the observer; an image filter value calculating unit which calculates an image filter value for adjusting an image blurring amount according to the relative position; and an image filtering processing unit which performs image filtering processing on image data according to the image filter value.Type: GrantFiled: July 31, 2013Date of Patent: March 8, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventors: Takefumi Hasegawa, Koji Shigemura -
Patent number: 9276472Abstract: The present invention is directed to sufficiently reduce the level of EMI which occurs from a switching FET in a DC/DC converter and minimize deterioration in efficiency of a power supply. A DC/DC converter includes a switching circuit for driving a switching FET for increasing or decreasing voltage, and a switching circuit for driving a ringing frequency changing circuit. One end of a capacitor is connected to a drain of the switching FET for increasing or decreasing voltage, and the other end of the capacitor is connected to a drain of an FET for the ringing frequency changing circuit. A source of the FET for the ringing frequency changing circuit is connected to GND, and a control circuit is provided which makes the ringing frequency changing circuit valid so that a ringing frequency becomes low only in a ringing frequency component exerting large influence on deterioration in EMI.Type: GrantFiled: November 25, 2013Date of Patent: March 1, 2016Assignee: NLT TECHNOLOGIES, LTD.Inventor: Kouichi Ooga
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Publication number: 20160026051Abstract: A lateral electric field type liquid crystal display apparatus includes a first substrate on which pixels are disposed in a matrix shape, each of the pixels including a plurality of signal wirings and a plurality of scanning wirings which intersect each other, a switching element provided in a region adjacent to a portion in which the signal wiring and the scanning wiring intersect or on the scanning wiring, a pixel electrode connected to the switching element, and a counter electrode to which a common potential is supplied from a common potential wiring; a second substrate provided to face the first substrate; and a liquid crystal provided between the first and second substrates, wherein a first electric field shield electrode, which is set to the common potential, is provided between the signal wiring and the first substrate, and the first electric field shield electrode is electrically connected with a first wiring which supplies the common potential to the first electric field shield electrode, within a dType: ApplicationFiled: July 23, 2015Publication date: January 28, 2016Applicant: NLT TECHNOLOGIES, LTD.Inventors: Takeshi SASAKI, Satoshi INADA