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公开(公告)号：US11605358B2
公开(公告)日：2023-03-14
申请号：US17674403
申请日：2022-02-17
发明人： Hidekazu Miyata
IPC分类号： G09G3/36 , G02F1/13357
摘要： A control unit receives an input image signal including input display gray scale data corresponding to the virtual opposing regions, selects a set of pieces of subpixel gray scale data corresponding to the virtual opposing regions from the input display gray scale data, extracts a maximum amount of subpixel gray scale data among the set of pieces of subpixel gray scale data as extracted gray scale data corresponding to one first pixel facing the virtual opposing regions among the plurality of first pixels, and controls a transmittance of light of the one first pixel using designated pixel gray scale data in a case where the extracted gray scale data has a level equal to or higher than an output determination reference gray scale level, the designated pixel gray scale data being gray scale data having a maximum transmittance of a first liquid crystal panel.
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公开(公告)号：US10992927B2
公开(公告)日：2021-04-27
申请号：US16289955
申请日：2019-03-01
发明人： Hidekazu Miyata
IPC分类号： G02F1/13357 , H04N13/344 , H04N13/167 , H04N13/31
摘要： A stereoscopic image display apparatus includes an illumination unit in which a plurality of light sources are disposed, a transmission unit that transmits light arriving from the illumination unit for each pixel based on an input image, and changes transmittance of the light for each pixel; a barrier unit that allows the light transmitted through the transmission unit to be viewed as a right-eye image and a left-eye image; and a control unit that divides an area of the illumination unit based on the input image and controls emission luminance of the light source for each area.
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公开(公告)号：US09852676B2
公开(公告)日：2017-12-26
申请号：US15114152
申请日：2014-12-15
发明人： Hidekazu Miyata , Iori Aoyama , Yuichi Kita
IPC分类号： G09G3/36 , G09G3/20 , G02F1/1343 , G02F1/1362 , G02F1/1339 , G02F1/1368
CPC分类号： G09G3/2018 , G02F1/1339 , G02F1/134309 , G02F1/134336 , G02F1/134363 , G02F1/13624 , G02F1/136286 , G02F1/1368 , G02F2001/134372 , G02F2201/123 , G09G3/2003 , G09G3/3607 , G09G3/3614 , G09G3/3648 , G09G3/3685 , G09G3/3696 , G09G2300/0426 , G09G2300/0434 , G09G2300/0443 , G09G2300/0465 , G09G2300/0478 , G09G2310/0235 , G09G2310/08 , G09G2320/0252 , G09G2320/0271 , G09G2320/0626
摘要： An active matrix substrate (12A) of a liquid crystal display device (10) includes: drive electrodes (32A, 32B) a pair of which are arranged in each pixel; pixel electrodes (36) each of which is provided in each pixel; first switching elements (34A) each of which is connected to one of the pair of drive electrode (32A); second switching elements (34B) each of which is connected to the other drive electrode (32B); third switching elements (34C) connected to the pixel electrodes (36); first source lines (30A) connected to the group of the first switching elements (34); second source lines (30B) connected to the group of the second switching elements (34B); third source lines (30C) connected to the group of the third switching elements (30C); and a plurality of gate lines (28).
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公开(公告)号：US09767742B2
公开(公告)日：2017-09-19
申请号：US15207583
申请日：2016-07-12
发明人： Shinji Nakagawa , Hidekazu Miyata , Hiroyuki Furukawa , Kazuyoshi Yoshiyama , Yasuhiro Yoshida , Toshihiro Yanagi , Taketoshi Nakano , Asahi Yamato , Ken Inada
IPC分类号： G09G5/02 , G09G3/36 , G09G3/20 , G02F1/1335
CPC分类号： G09G3/3607 , G02F1/133514 , G02F2201/52 , G09G3/2003 , G09G5/02 , G09G2300/0452 , G09G2320/0242 , G09G2340/0457 , G09G2360/16
摘要： There is provided an image display device, in which a pixel includes sub-pixels of four or more colors that include a color in addition to the three primary colors, and which can display a high-quality image in which false colors or artifacts are suppressed. The image display device includes a pixel area in which a plurality of pixels P are arranged in a matrix shape, and each of the pixels P includes m (m is an integer which is equal to or greater than 4) sub-pixels SP. When it is assumed that the colors of the m sub-pixels SP included in one pixel are C1, C2, . . . , and Cm, the m sub-pixels SP which are sequentially arrayed from an arbitrary position include all of the colors of C1, C2, . . . , and Cm in both the vertical direction and the horizontal direction in the pixel area.
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公开(公告)号：US10796650B2
公开(公告)日：2020-10-06
申请号：US16085228
申请日：2017-03-14
发明人： Iori Aoyama , Yuichi Kita , Takahiro Sasaki , Hidekazu Miyata , Kazutaka Hanaoka
IPC分类号： G09G3/36 , G02F1/1362 , G09G3/32 , G09G3/20 , G09G3/34
摘要： In a liquid crystal display device (100), each pixel row group is selected by a common scan signal voltage, each pixel row group including N pixel rows which adjoin one another in a column direction. Where two pixel rows which adjoin each other in a column direction and which are included in different pixel row groups are a first pixel row and a second pixel row, the first pixel row includes a pixel which has a pixel electrode (16) capacitively coupled with a gate bus line (12) which is associated with the second pixel row. When the first pixel row is included in the qth group, the second pixel row is included in the (q+1)th group. A scan signal voltage supplied to gate bus lines which are associated with the (q+1)th group switches from low to high before a scan signal voltage supplied to gate bus lines which are associated with the qth group switches from high to low.
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公开(公告)号：US09697777B2
公开(公告)日：2017-07-04
申请号：US14436147
申请日：2013-12-13
发明人： Hidekazu Miyata
CPC分类号： G09G3/3413 , G02B6/0041 , G02B6/0046 , G02B6/0068 , G02B6/0076 , G02B27/0101 , G02B2027/0112 , G02F1/13306 , G02F1/133615 , G09G3/3648 , G09G2310/0235 , G09G2310/0237 , G09G2320/0233 , G09G2320/0242
摘要： In a liquid crystal display device capable of performing image display while keeping a background in a transparent state, field-sequential driving is performed without causing color mixing.A backlight (700) is configured by upper-side LEDs (71U) and lower-side LEDs (71D) that are provided respectively in an upper side and a lower side of a liquid crystal panel (800), and an upper-side light guide plate (72U) and a lower-side light guide plate (72D) for guiding emission light respectively from the upper-side LEDs (71U) and the lower-side LEDs (71D) to the liquid crystal panel (800). When a screen of a color corresponding to each field which constitutes one frame period is displayed, LEDs included in the upper-side LEDs (71U) are turned into a light emission state and then LEDs included in the lower-side LEDs (71D) are turned into the light emission state, and the LEDs included in the upper-side LEDs (71U) are turned into a light-off state and then the LEDs included in the lower-side LEDs (71D) are turned into the light-off state.
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公开(公告)号：US09536491B2
公开(公告)日：2017-01-03
申请号：US14420745
申请日：2013-09-20
发明人： Hidekazu Miyata , Yuichi Kita , Takatomo Yoshioka
CPC分类号： G09G3/3696 , G09G3/3614 , G09G3/3666 , G09G3/3674 , G09G3/3688 , G09G5/18 , G09G2320/0247 , G09G2320/0257 , G09G2330/027
摘要： A source driver generates a plurality of gradation voltages based on a plurality of gradation reference voltages VH255 to VL255 generated by a gradation reference voltage generation circuit, and drives the data lines using the generated gradation voltages. The control unit sets a waiting time before the power of the source driver is cut off, and controls the gradation reference voltage generation circuit such that all the plurality of gradation reference voltages VH255 to VL255 become the same voltage during the waiting time. In this way, the same voltages are written into the pixel circuits and the charge remaining in the pixel circuits are discharged, and thus, an afterimage, a ghosting, and a flickering caused by the remaining charge when the power is cut off are prevented.
摘要翻译： 源极驱动器基于由灰度基准电压产生电路产生的多个灰度参考电压VH255至VL255产生多个灰度电压，并且使用产生的灰度电压驱动数据线。 控制单元在源极驱动器的电源被切断之前设置等待时间，并且控制灰度参考电压产生电路，使得在等待时间期间所有多个灰度参考电压VH255至VL255变为相同的电压。 以这种方式，将相同的电压写入像素电路，并且残留在像素电路中的电荷被放电，因此防止了当电源被切断时由剩余电荷引起的余像，重影和闪烁。
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公开(公告)号：US20150206498A1
公开(公告)日：2015-07-23
申请号：US14420745
申请日：2013-09-20
发明人： Hidekazu Miyata , Yuichi Kita , Takatomo Yoshioka
CPC分类号： G09G3/3696 , G09G3/3614 , G09G3/3666 , G09G3/3674 , G09G3/3688 , G09G5/18 , G09G2320/0247 , G09G2320/0257 , G09G2330/027
摘要： A source driver generates a plurality of gradation voltages based on a plurality of gradation reference voltages VH255 to VL255 generated by a gradation reference voltage generation circuit, and drives the data lines using the generated gradation voltages. The control unit sets a waiting time before the power of the source driver is cut off, and controls the gradation reference voltage generation circuit such that all the plurality of gradation reference voltages VH255 to VL255 become the same voltage during the waiting time. In this way, the same voltages are written into the pixel circuits and the charge remaining in the pixel circuits are discharged, and thus, an afterimage, a ghosting, and a flickering caused by the remaining charge when the power is cut off are prevented.
摘要翻译： 源极驱动器基于由灰度基准电压产生电路产生的多个灰度参考电压VH255至VL255产生多个灰度电压，并且使用产生的灰度电压驱动数据线。 控制单元在源极驱动器的电源被切断之前设置等待时间，并且控制灰度参考电压产生电路，使得在等待时间期间所有多个灰度参考电压VH255至VL255变为相同的电压。 以这种方式，将相同的电压写入像素电路，并且残留在像素电路中的电荷被放电，因此防止了当电源被切断时由剩余电荷引起的余像，重影和闪烁。
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9.发明申请LIQUID CRYSTAL DISPLAY DEVICE, DATA LINE DRIVE CIRCUIT, AND DRIVE METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE 有权液晶显示装置，数据线驱动电路和用于液晶显示装置的驱动方法公开(公告)号：US20150138249A1
公开(公告)日：2015-05-21
申请号：US14399073
申请日：2013-05-21
发明人： Hidekazu Miyata , Tadao Morishita
CPC分类号： G09G3/2007 , G09G3/3614 , G09G3/3648 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G3/3688 , G09G3/3696 , G09G2300/0823 , G09G2300/0828 , G09G2310/0248 , G09G2310/027 , G09G2320/0233 , G09G2320/0247
摘要： Provided is a liquid crystal display device that can suppress, more than the prior art, lowering of display quality when low-frequency drive is being carried out. The liquid crystal display device is operated in a low frequency drive mode. A source driver applies a gradation voltage during write periods and an idle period voltage during an idle period to each source line. The value of the idle period voltage is, for example, an average value of a maximum gradation positive voltage, a maximum gradation negative voltage, a minimum gradation positive voltage, and a minimum gradation negative voltage. By making the voltage for each source line during the idle period be the idle period voltage, potential variations in the source lines when switching from the write periods to the idle period are smaller than the prior art.
摘要翻译： 提供了一种液晶显示装置，其能够比现有技术更多地抑制低频驱动时的显示质量的降低。 液晶显示装置以低频驱动模式工作。 源驱动器在写入周期期间施加灰度电压，并且在空闲周期期间将空闲周期电压施加到每个源极线。 空闲周期电压的值例如是最大灰度正电压，最大灰度负电压，最小灰度正电压和最小灰度负电压的平均值。 通过在空闲期间使每个源极线的电压为空闲周期电压，当从写周期切换到空闲周期时，源极线中的电位变化小于现有技术。
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公开(公告)号：US11048121B2
公开(公告)日：2021-06-29
申请号：US16796188
申请日：2020-02-20
发明人： Hidekazu Miyata
IPC分类号： G02F1/13357 , F21V9/30 , G02F1/1335
摘要： A lighting device includes a light source emitting primary light rays that are included in a certain wavelength region, a wavelength conversion member, and a reflection layer. The wavelength conversion member has a function of converting some of the primary light rays that have passed through the wavelength conversion member into secondary light rays that are included in another wavelength region that is different from the certain wavelength region. The reflection layer has a function of reflecting light rays that reach a first surface on an opposite side from the light source. The reflection layer includes a light transmission section in a portion thereof, and light rays that reach a second surface on a light source side pass through the light transmission section to the first surface at a higher ratio than other section of the reflection layer.
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