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公开(公告)号：US11869430B2
公开(公告)日：2024-01-09
申请号：US17792334
申请日：2020-01-24
发明人： Yusuke Sakakibara
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2310/027 , G09G2320/0233 , G09G2330/021
摘要： A pixel is divided into a first subpixel and a second subpixel. A first data signal is input to a first drive unit that drives a first light-emitting element constituting the first subpixel, and a second data signal is input to a second drive unit that drives a second light-emitting element constituting the second subpixel. A gray scale value of the first data signal is smaller than a gray scale value of the second data signal.
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公开(公告)号：US11342527B2
公开(公告)日：2022-05-24
申请号：US17040941
申请日：2018-03-29
发明人： Yusuke Sakakibara , Kenji Kimoto , Tatsuya Ryohwa
摘要： For a purpose of simplifying a structure of a light-emitting element while maintaining luminous efficiency of the light-emitting element, the present invention provides a light-emitting element including: a cathode electrode; an anode electrode; a light-emitting layer between the cathode electrode and the anode electrode; an electron transport layer between the light-emitting layer and the cathode electrode; and a hole transport layer between the light-emitting layer and the anode electrode. The light-emitting element further includes a plurality of subpixels for each light emission wavelength of the light-emitting layer, the light-emitting layer and the electron transport layer for each of the plurality of subpixels, and the hole transport layer common to at least the plurality of subpixels.
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公开(公告)号：US11984053B2
公开(公告)日：2024-05-14
申请号：US17915079
申请日：2020-04-08
CPC分类号： G09G3/006 , G01R31/2635 , G09G3/32 , G09G2330/10 , G09G2330/12 , H10K59/12
摘要： An inspection circuit in a display device includes: a measuring circuit configured to sweep a voltage to the display device and to measure a current value that flows in a light-emitting element in response to a voltage value applied; a computation circuit configured to compute a first derivative value of the current value with respect to the voltage value, the first derivative value representing voltage dependence of a first derivative of the current value; a peak determination circuit configured to determine a peak of the first derivative value; and a processing circuit configured to process the light-emitting element based on a result of the determination by the peak determination circuit.
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公开(公告)号：US10295943B2
公开(公告)日：2019-05-21
申请号：US15904706
申请日：2018-02-26
发明人： Yusuke Sakakibara , Kyohko Matsuda , Makoto Izumi
摘要： Type and moisture content of a sheet of paper are determined with high accuracy for controlling an image forming condition, accordingly. A coping machine includes a transmitted-light measuring unit, a reflected-light measuring unit, a type determination unit configured to determine a type of a sheet of paper, a moisture content calculation unit configured to calculate a moisture content of the sheet of paper, based on the type of the sheet of paper determined by the type determination unit and the intensity of the light measured by the reflected-light measuring unit, and an image forming condition setting unit configured to set an image forming condition for the sheet of paper.
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公开(公告)号：US12120901B2
公开(公告)日：2024-10-15
申请号：US17289208
申请日：2018-10-30
发明人： Yusuke Sakakibara , Tatsuya Ryohwa
摘要： Provided is a light-emitting element to highly efficiently emit light in different colors. The light-emitting element includes: a cathode; an anode; a light-emitting layer formed between the cathode and the anode, and including a plurality of light-emitting regions respectively emitting light of different wavelengths; and an electron-transport layer formed between the cathode and the light-emitting layer, and including a plurality of regions each corresponding to one of the light-emitting regions. The electron-transport layer includes a Zn1-XMgXO film (where X is 0≤X
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