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公开(公告)号:US20180233081A1
公开(公告)日:2018-08-16
申请号:US15751552
申请日:2016-08-03
Applicant: Sharp Kabushiki Kaisha
Inventor: Noritaka KISHI , Hiroyuki FURUKAWA , Katsuya OTOI , Kazuyoshi YOSHIYAMA , Tamotsu SAKAI , Naoko GOTO , Noboru NOGUCHI
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/0693
Abstract: In a data line drive/current measurement circuit, m measurement units are disposed in a plurality of semiconductor chips such that the m measurement units are distributed among the plurality of semiconductor chips. A display apparatus includes transistors such that one transistor is provided for two adjacent semiconductor chips. Inter-chip correction data indicating a variation among the semiconductor chips in terms of characteristics of elements in the measurement units is determined based on a result of a current measurement performed for the same transistor using measurement units disposed in different semiconductor chips. The inter-chip correction data is stored in a storage unit and is used in correcting an image signal. The inter-chip correction data may be determined based on a result of measuring a current flowing through a common cathode of organic EL elements for each semiconductor chip. Thus, a variation in the characteristic of the element among the semiconductor chips is compensated for and high image quality is achieved in displaying.
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公开(公告)号:US20170255332A1
公开(公告)日:2017-09-07
申请号:US15503749
申请日:2015-06-17
Applicant: Sharp Kabushiki Kaisha
Inventor: Masafumi UENO , Kazuyoshi YOSHIYAMA , Takeshi MASUDA , Hiroyuki FURUKAWA
CPC classification number: G06F3/0418 , G06F1/1626 , G06F1/1643 , G06F3/044 , G06F3/0488
Abstract: Provided is a holding manner determination device that accurately determines a manner of holding an information terminal. A matching processing unit (312) calculates a coincidence between distribution data of sensor values detected by a touch panel (10) and holding hand reference data (Ref1), and a holding hand determination unit (314) determines a holding hand on the basis of holding hand information of the holding hand reference data (Ref1) whose coincidence with detection data is equal to or greater than a threshold.
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公开(公告)号:US20150294628A1
公开(公告)日:2015-10-15
申请号:US14440652
申请日:2013-11-07
Applicant: SHARP KABUSHIKI KAISHA
Inventor: Shinji NAKAGAWA , Hiroyuki FURUKAWA , Kazuyoshi YOSHIYAMA , Yasuhiro YOSHIDA
CPC classification number: G09G3/3607 , G09G3/2003 , G09G3/3611 , G09G2300/0452 , G09G2320/0666 , G09G2340/0457 , G09G2340/06 , H01L27/3213
Abstract: A signal conversion circuit (20) of a multiprimary display device (100) includes a low-range multiprimary signal generation section (21), a high-range luminance signal generation section (22), and a rendering process section (23). The low-range multiprimary signal generation section includes a first filter section (21a) which is capable of extracting a low-range component from an input image signal and a multiprimary conversion section (21b), whereas the high-range luminance signal generation section includes a luminance conversion section (22a) and a second filter section (22b) which extracts a high-range component of a luminance signal. The signal conversion circuit further includes a chromaticity conversion section (24) and a luminance/chromaticity change detection section (25). As a frequency characteristics profile of the first filter section, one frequency characteristics profile is selected from among a plurality of predefined frequency characteristics profiles, in accordance with a result of detection by the luminance/chromaticity change detection section.
Abstract translation: 多原色显示装置(100)的信号转换电路(20)包括低范围多原色信号生成部(21),高范围亮度信号生成部(22)和渲染处理部(23)。 低范围多原色信号产生部分包括能够从输入图像信号和多原色转换部分(21b)提取低范围分量的第一滤波器部分(21a),而高范围亮度信号产生部分包括 提取亮度信号的高范围分量的亮度转换部(22a)和第二滤波部(22b)。 信号转换电路还包括色度转换部分(24)和亮度/色度变化检测部分(25)。 作为第一滤波器部分的频率特性曲线,根据亮度/色度变化检测部分的检测结果,从多个预定频率特性曲线中选择一个频率特性分布。
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公开(公告)号:US20180061328A1
公开(公告)日:2018-03-01
申请号:US15559883
申请日:2016-03-18
Applicant: Sharp Kabushiki Kaisha
Inventor: Noritaka KISHI , Hiroyuki FURUKAWA , Katsuya OTOI , Kazuyoshi YOSHIYAMA , Tamotsu SAKAI , Naoko GOTOH
IPC: G09G3/3291 , G09G3/3233 , G09G3/3266 , G01R19/165
CPC classification number: G09G3/3291 , G01R19/16576 , G09G3/3225 , G09G3/3233 , G09G3/3266 , G09G3/3275 , G09G2310/0289 , G09G2310/0291 , G09G2310/08 , G09G2320/0233
Abstract: In a current measurement period of a pixel circuit (20), a measurement voltage is applied to a non-inverting input terminal of an operational amplifier (31), switches (35, 36) turn on, and a switch (37) turns off. Next, the switch (36) turns off, and a capacitor (32) is charged with charge of a current flowing through the pixel circuit (20). Next, the switch (35) turns off, the switch (37) turns on, a constant current flows through a current source (33), and a voltage of a second terminal (terminal connected to an output terminal of the operational amplifier (31)) of the capacitor (32) decreases. A voltage comparator (42) and a counter (43) measure the current flowing through the pixel circuit (20) by measuring time until a voltage of the second terminal of the capacitor reaches a voltage Vcomp. A video signal VS1 is corrected based on a current measurement result. With this, it is possible to compensate for capacitance variation of a capacitance in a current measurement circuit and perform high image quality display.
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公开(公告)号:US20160322009A1
公开(公告)日:2016-11-03
申请号:US15207583
申请日:2016-07-12
Applicant: Sharp Kabushiki Kaisha
Inventor: Shinji NAKAGAWA , Hidekazu MIYATA , Hiroyuki FURUKAWA , Kazuyoshi YOSHIYAMA , Yasuhiro YOSHIDA , Toshihiro YANAGI , Taketoshi NAKANO , Asahi YAMATO , Ken INADA
IPC: G09G3/36
CPC classification number: G09G3/3607 , G02F1/133514 , G02F2201/52 , G09G3/2003 , G09G5/02 , G09G2300/0452 , G09G2320/0242 , G09G2340/0457 , G09G2360/16
Abstract: 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.
Abstract translation: 提供了一种图像显示装置,其中像素包括除了三原色之外包括颜色的四种或更多种颜色的子像素,并且可以显示其中抑制了假色或伪像的高质量图像 。 图像显示装置包括其中多个像素P以矩阵形状布置的像素区域,并且每个像素P包括m(m是等于或大于4的整数)子像素SP。 当假设包括在一个像素中的m个子像素SP的颜色是C1,C2,...时。 。 。 和Cm,从任意位置顺序排列的m个子像素SP包括C1,C2的全部颜色。 。 。 ,以及像素区域中的垂直方向和水平方向上的Cm。
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