-
公开(公告)号：US09830866B2
公开(公告)日：2017-11-28
申请号：US15403626
申请日：2017-01-11
Applicant: Japan Display Inc.
Inventor： Naoyuki Takasaki , Tsutomu Harada , Susumu Kimura , Fumitaka Gotoh
CPC classification number: G09G3/342 , G02B6/0068 , G09G3/3406 , G09G3/3648 , G09G5/026 , G09G2300/0452 , G09G2320/064 , G09G2320/0646 , G09G2320/0666 , G09G2330/021 , G09G2360/145 , G09G2360/16 , G09G2380/10
Abstract: According to an aspect, a display device includes an image display panel; a planar light source including a light guide plate and an edge-lit light source that has light sources; and a controller. The controller sets luminance determination blocks by virtually dividing the image display panel in a light-source-arrangement-direction, identifies a luminance determination block with a highest luminance in the incidence direction, among luminance determination blocks at a same position in the light-source-arrangement-direction, identifies a luminance determination block the luminance of which is to be corrected by referring to luminance information of the light sources, and controls a light quantity of each of the light sources in such a manner that luminance of the identified luminance determination block is achieved.
-
公开(公告)号：US09728161B2
公开(公告)日：2017-08-08
申请号：US14692957
申请日：2015-04-22
Applicant: Japan Display Inc.
Inventor： Kojiro Ikeda , Toshiyuki Nagatsuma , Masaaki Kabe , Amane Higashi , Tae Kurokawa , Fumitaka Gotoh , Akira Sakaigawa
CPC classification number: G09G5/10 , G09G3/3607 , G09G3/3648 , G09G5/02 , G09G2300/0452 , G09G2340/0457 , G09G2340/06 , G09G2360/16
Abstract: A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.
-
公开(公告)号：US20170162128A1
公开(公告)日：2017-06-08
申请号：US15367091
申请日：2016-12-01
Applicant: Japan Display Inc.
Inventor： Susumu Kimura , Kazuhiko Sako , Tadafumi Ozaki , Naoyuki Takasaki , Fumitaka Gotoh , Tsutomu Harada
CPC classification number: G09G3/342 , G02B6/0068 , G09G2320/0626 , G09G2320/0646 , G09G2330/12 , G09G2360/16 , H05B33/0827 , H05B33/083 , H05B33/089
Abstract: According to one embodiment, a light source device includes a plurality of light emitting elements including at least first and second light emitting elements, lightguide, first circuit, second circuit, and controller. The lightguide includes a first surface on which light from light emitting elements is incident and a second surface through which the light exits. The first circuit connects light emitting elements in series. The second circuit can bypass each of light emitting elements. The controller turns on light emitting elements using the first circuit if light emitting elements function normally, and if one of light emitting elements functions abnormally, the controller turns on the light emitting element functioning normally using the second circuit.
-
公开(公告)号：US09613571B2
公开(公告)日：2017-04-04
申请号：US14505084
申请日：2014-10-02
Applicant: Japan Display Inc.
Inventor： Fumitaka Gotoh , Tsutomu Harada , Naoyuki Takasaki
CPC classification number: G09G3/3406 , G09G3/3648 , G09G5/04 , G09G2300/0452 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666 , G09G2330/023 , G09G2380/10
Abstract: A display device includes: an image display unit in an image display region, the image display unit including a plurality of main pixels each including sub-pixels; a light source portion that irradiates the image display region; a signal correction unit that calculates saturation and value of the main pixels based on first color information to be displayed on a predetermined pixel, the first color information being obtained based on an input video signal, and generates second color information by correcting the first color information based on the calculated saturation and value; a signal generation unit that calculates the saturation and the value of the main pixels based on the second color information, and generates a signal for determining light source luminance of the light source based on the calculated saturation and value; and a light source control unit that controls luminance of the light source based on the signal.
-
公开(公告)号：US20160148579A1
公开(公告)日：2016-05-26
申请号：US14947669
申请日：2015-11-20
Applicant: Japan Display Inc.
Inventor： Susumu Kimura , Fumitaka Gotoh , Naoyuki Takasaki , Tsutomu Harada
CPC classification number: G09G3/3607 , G09G3/3426 , G09G2300/0452 , G09G2320/0276 , G09G2320/0646 , G09G2340/06 , G09G2360/16
Abstract: According to an aspect, the liquid crystal display device includes: an expansion coefficient determining unit that determines an expansion coefficient of each of partial areas based on a signal level of the first, the second, and the third colors; a luminance level determining unit that determines a luminance level of each partial area based on the signal level; a signal processing unit that uses the expansion coefficient to expand the signal level; and a light source control unit that controls brightness of a light source based on the expansion coefficient and the luminance level. The light source can change the brightness of the partial areas individually. The light source control unit controls the light source such that the brightness of the light source in a partial area having a luminance level equal to or higher than a predetermined threshold is higher than the brightness based on the expansion coefficient.
Abstract translation: 根据一个方面，液晶显示装置包括：扩展系数确定单元，其基于第一颜色，第二颜色和第三颜色的信号级确定每个部分区域的展开系数; 亮度级确定单元，其基于所述信号电平来确定每个部分区域的亮度级; 使用扩展系数来扩大信号电平的信号处理单元; 以及光源控制单元，其基于展开系数和亮度水平来控制光源的亮度。 光源可以单独改变部分区域的亮度。 光源控制单元控制光源，使得亮度等于或高于预定阈值的部分区域中的光源的亮度高于基于展开系数的亮度。
-
Patent Agency Ranking
公开(公告)号：US20150109349A1
公开(公告)日：2015-04-23
申请号：US14505109
申请日：2014-10-02
Applicant: Japan Display Inc.
Inventor： Fumitaka Gotoh , Tsutomu Harada , Naoyuki Takasaki
IPC: G09G5/10 , G02F1/133 , G09G3/36 , G02F1/1335
CPC classification number: G09G3/36 , G09G3/3607
Abstract: A display device includes: an image display unit that includes an image display region; a plurality of light sources that are arranged corresponding to a plurality of partial regions included in the image display region and irradiate the partial regions with light; a light amount correction processing unit that detects that the partial regions are non-display regions in which no image is displayed, and corrects a light amount of the light sources based on a predetermined threshold when the partial regions adjacent to each other are continuous non-display regions; and a light source control unit that controls the light amount of the light sources.
Abstract translation: 显示装置包括：图像显示单元，其包括图像显示区域; 多个光源，其对应于包括在图像显示区域中的多个部分区域并且用光照射该部分区域; 光量校正处理单元，其检测部分区域是不显示图像的非显示区域，并且当彼此相邻的部分区域是连续的时，基于预定阈值校正光源的光量， 展示区域 以及光源控制单元，其控制光源的光量。
-
公开(公告)号：US11580768B2
公开(公告)日：2023-02-14
申请号：US17219252
申请日：2021-03-31
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Gen Koide , Hayato Kurasawa , Toshio Soya , Fumitaka Gotoh
IPC: G06V40/13 , G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1362 , H05K1/02 , G02F1/1368
Abstract: A sensor is provided and includes a first control line; a first signal line; a first auxiliary line; a first detection electrode; a first detection switch connected to the first detection electrode, the first control line and the first signal line; and a first shielding electrode connected to the first auxiliary line, wherein the first shielding electrode is located to overlap the first signal line via an insulating film.
-
公开(公告)号：US10341538B2
公开(公告)日：2019-07-02
申请号：US15824156
申请日：2017-11-28
Applicant: Japan Display Inc.
Inventor： Tsutomu Harada , Kazunori Yamaguchi , Akira Sakaigawa , Fumitaka Gotoh
Abstract: A display system includes a controller and an image display panel. The controller includes a signal transmitter configured to output at least a vertical synchronization signal to a plurality of image-capturing apparatuses; and a synthesizer configured to provide synthesized image signals in units of lines obtained by synthesizing, in units of lines, image signals in units of lines output from the respective image-capturing apparatuses at a timing corresponding to a horizontal synchronization signal formed in a predetermined cycle based on an output timing of the vertical synchronization signal. The image display panel is configured to display sequentially, in units of lines, the synthesized image signals in units of lines.
-
公开(公告)号：US20190163299A1
公开(公告)日：2019-05-30
申请号：US16169439
申请日：2018-10-24
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Naoki Takada , Fumitaka Gotoh , Shota Hosaka
IPC: G06F3/044 , H03K17/96 , H03K17/955 , G06F3/041
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G06F3/041662 , G06F3/0445 , G06F3/0446 , G06F3/0448 , G06F2203/04103 , G06F2203/04108 , H03K17/955 , H03K17/962 , H03K2017/9615
Abstract: A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.
-
公开(公告)号：US10191586B2
公开(公告)日：2019-01-29
申请号：US15944243
申请日：2018-04-03
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Makoto Hayashi , Kohei Azumi , Shinya Iuchi , Fumitaka Gotoh
IPC: G06F3/033 , G06F3/0354 , G06F3/041 , G06F3/044 , G06F3/038
Abstract: In a display apparatus, a touch panel where driving and sensing electrodes face each other across a dielectric substance outputs a detection signal from the sensing electrode in synchronization with a driving signal applied to the driving electrode. A pointing device points to a position on a touch surface of the touch panel. A detection assisting device includes an inverting circuit for obtaining a detection driving signal corresponding to the driving signal and inverting the phase thereof to generate an inversion signal, and outputs the inversion signal to the sensing electrode via the pointing device. A control device applies the driving signal to the driving electrode, obtains the detection signal generated at the sensing electrode according to the mutual capacitance between the driving and sensing electrodes and the inversion signal, and detects the pointing device in contact with or proximity to the touch panel based on the detection signal.
-
-
-
-
-
-
-
-
-
Search Results
55
records
(took 0.02 seconds)
