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1. 发明授权

US11557747B2 Display device 有权
公开(公告)号：US11557747B2
公开(公告)日：2023-01-17
申请号：US16681250
申请日：2019-11-12
申请人： Tianma Japan, Ltd.
发明人： Shigeru Mori , Keita Hamada
IPC分类号： H01L51/52 , H01L27/32 , H01L51/56
摘要： A display device includes a substrate and a plurality of first light-emitting elements having a microcavity structure on the substrate. Each of the plurality of first light-emitting elements includes a first light-emitting film and a first upper electrode and a first lower electrode sandwiching the first light-emitting film. The peak wavelength of an emission spectrum of the first light-emitting film is in a wavelength range where the luminosity curve slopes negatively. Within a wavelength range where the peak wavelength of a multiple interference spectrum caused by the microcavity structure varies when the viewing angle varies from 0° to 60°, the luminosity curve slopes negatively, and the emission spectrum slopes positively.

2. 发明授权

US11531230B2 Optical forming device and forming method 有权
公开(公告)号：US11531230B2
公开(公告)日：2022-12-20
申请号：US17086512
申请日：2020-11-02
申请人： TIANMA JAPAN, LTD.
发明人： Chikaaki Mizokuchi
IPC分类号： G02F1/1335 , B29C35/00 , B29C35/08
摘要： An optical forming device includes a light source to emit light for causing liquid photocurable resin to undergo curing and an optical modulator to modulate the light for causing the liquid photocurable resin to undergo curing in a pattern based on a shape of a three-dimensional object, and irradiate the liquid photocurable resin with the modulated light. The optical modulator includes a liquid crystal device to modulate the light for causing the liquid photocurable resin to undergo curing in the pattern, and emit the modulated light as linearly polarized light and an optical retardation device to impart a phase difference to the linearly polarized light emitted from the liquid crystal device, and emit the light imparted with the phase difference.

3. 发明授权

US11527596B2 Display device 有权
公开(公告)号：US11527596B2
公开(公告)日：2022-12-13
申请号：US16937244
申请日：2020-07-23
申请人： Tianma Japan, Ltd.
发明人： Jun Tanaka
IPC分类号： H01L27/32
摘要： A display device includes a light transmitting substrate in which pixels are arranged, the pixels having a light transmitting region that transmits external light and a light emitting region in which a light emitting element is disposed; a first light blocking layer that is disposed in the light emitting region and blocks the external light; a thin film transistor that is disposed on the first light blocking layer and controls a light emission of the light emitting element; a first insulating layer that covers an active layer of the thin film transistor; a second light blocking layer that is disposed on the first insulating layer so as to cover the thin film transistor and blocks the external light; and a first light blocking wall that is connected to the first light blocking layer and the second light blocking layer and blocks the external light.

4. 发明申请

US20220123067A1 DISPLAY DEVICE WITH FIRST DELTA SUBPIXEL ARRANGEMENT AND SECOND DELTA SUBPIXEL ARRANGEMENT DISPOSED ALONG FIRST AND SECOND AXES AND CONFIGURED TO DETERMINE LUMINANCE VALUES TO BE ASSIGNED TO SUBPIXELS AND METHOD OF CONTROLLING THE SAME 有权
公开(公告)号：US20220123067A1
公开(公告)日：2022-04-21
申请号：US17646033
申请日：2021-12-27
申请人： WUHAN TIANMA MICRO- ELECTRONICS CO., LTD , TIANMA JAPAN, LTD.
发明人： Yojiro Matsueda
IPC分类号： H01L27/32 , G09G3/3291 , G09G3/3283
摘要： For the first type of display pixel, a display device determines a luminance value assigned from a first frame pixel to the green subpixel, a luminance value assigned from the first frame pixel to each of the two red subpixels to be a value lower than a luminance value for one red subpixel, and a luminance value assigned from the first frame pixel to each of the two blue subpixels to be a value lower than a luminance value for one blue subpixel. For the second type of display pixel, the display device determines a luminance value assigned from a second frame pixel to each of the red subpixel and the blue subpixel, and a luminance value assigned from the second frame pixel to each of the two green subpixels to be a value lower than a luminance value determined for one green subpixel.

5. 发明授权

US11256128B2 Display device 有权
公开(公告)号：US11256128B2
公开(公告)日：2022-02-22
申请号：US16136527
申请日：2018-09-20
申请人： Tianma Japan, Ltd.
发明人： Masanori Shirokawa , Ken Sumiyoshi
IPC分类号： G02F1/1335 , G02B27/09 , G06F3/01 , G02F1/13 , G02F1/29 , G06F1/16
摘要： A display device includes: a display module including elemental pixel groups, each of the elemental pixel groups being configured to display an elemental image for displaying a reproduced image; an elemental lens array including elemental lenses, the elemental lenses being provided in front of the elemental pixel groups in one-to-one correspondence; a diopter adjustment element array including diopter adjustment elements, the diopter adjustment elements being provided in front of the plurality of elemental lenses in one-to-one correspondence; and a controller. The controller is configured to: control a part of the diopter adjustment elements in accordance with visual acuity of one eye of a user; and control the other part of the diopter adjustment elements in accordance with visual acuity of the other eye of the user.

6. 发明申请

US20210384238A1 IMAGE SENSOR AND METHOD OF CONTROLLING IMAGE SENSOR 有权
公开(公告)号：US20210384238A1
公开(公告)日：2021-12-09
申请号：US17339306
申请日：2021-06-04
申请人： TIANMA JAPAN, LTD.
发明人： Hiroyuki SEKINE
IPC分类号： H01L27/146 , H01L29/786
摘要： An image sensor is disclosed. A first thin-film transistor includes a first gate and a second gate. The first gate is supplied with a signal generated by a photoelectric conversion element. The second gate is supplied with a potential different from a potential of a first signal line by a predetermined voltage through a second signal line. The second gate has a smaller capacitance than the first gate. A second thin-film transistor supplies a reset potential received from a reset power line to the photoelectric conversion element. Whether a third thin-film transistor is in a conductive state is controlled by a selection signal. The third thin-film transistor is disposed between the first signal line and the first thin-film transistor and the current from a constant current source flows into the first thin-film transistor via the third thin-film transistor in a conductive state.

7. 发明授权

US11187957B2 Light distribution control element, and display device and illumination device including the same 有权
公开(公告)号：US11187957B2
公开(公告)日：2021-11-30
申请号：US16140870
申请日：2018-09-25
申请人： TIANMA JAPAN, LTD.
发明人： Tomoki Takaya , Yukihiro Ito
IPC分类号： G02B26/00 , G02F1/167 , F21V14/00 , G02F1/13 , G02F1/133 , G02F1/16761
摘要： A light distribution control element includes a first transparent substrate, a second transparent substrate, first control electrodes and second control electrodes provided on the first transparent substrate, light-transmissive regions provided between the first transparent substrate and the second transparent substrate, and electrophoretic elements including electrophoretic particles charged to a specific polarity and having a light blocking property and optically transmissive dispersant. Each electrophoretic element is provided between two light-transmissive regions. At least a part of at least one of the first control electrodes and at least a part of at least one of the second control electrodes both overlap with each of the plurality of electrophoretic elements. Dispersion of the electrophoretic particles changes depending on potential difference between the first control electrodes and the second control electrodes to change a range of outgoing direction of light transmitted through the light distribution control element.

8. 发明申请

US20210202556A1 LIGHT RAY DIRECTION CONTROL ELEMENT, MANUFACTURING METHOD FOR LIGHT RAY DIRECTION CONTROL ELEMENT, AND IMAGING ELEMENT 有权
公开(公告)号：US20210202556A1
公开(公告)日：2021-07-01
申请号：US17126354
申请日：2020-12-18
申请人： TIANMA JAPAN, LTD. , Wuhan Tianma Micro-Electronics Co., Ltd.
发明人： Kunihiro SHIOTA , Ken Sumiyoshi , Hiroshi Haga
IPC分类号： H01L27/146 , G02B5/00
摘要： A light ray direction control element includes a base, a plurality of light transmitting layers arranged on a main surface of the base, a light absorbing layer disposed among the plurality of light transmitting layers, and a tilt prevention layer provided on the main surface of the base and disposed on an outer periphery of a region in which the plurality of light transmitting layers is disposed.

9. 发明申请

US20210199619A1 ION SENSING DEVICE 有权
公开(公告)号：US20210199619A1
公开(公告)日：2021-07-01
申请号：US17099976
申请日：2020-11-17
申请人： TIANMA JAPAN, LTD.
发明人： Hiroyuki SEKINE
IPC分类号： G01N27/414
摘要： Ion sensing device includes a field-effect transistor including a bottom gate and a top gate, a reference electrode, and a driver circuit configured to measure concentration of ions in a sample solution into which the reference electrode and the top gate are immersed. The driver circuit includes a constant current source configured to supply a drain of the field-effect transistor with a constant current, and a voltage follower configured to receive a potential of the drain. The driver circuit is configured to supply the reference electrode with a constant reference potential, apply a constant voltage across an output of the voltage follower and the bottom gate, and output an output potential of the voltage follower.

10. 发明申请

US20210117004A1 TACTILE PRESENTATION DEVICE 有权
公开(公告)号：US20210117004A1
公开(公告)日：2021-04-22
申请号：US17137600
申请日：2020-12-30
申请人： Wuhan Tianma Micro-Electronics Co., Ltd. , TIANMA JAPAN, LTD.
发明人： Harue Sasaki , Hiroshi Haga , Koji Shigemura , Hirotsugu Yamamoto
IPC分类号： G06F3/01 , G06F3/041 , G06F3/0488
摘要： A tactile presentation device includes a touch surface fixed in orientation, an actuator configured to vibrate the touch surface along one axis within the plane of the touch surface, and a controller configured to control vibration of the actuator along the one axis to present tactile stimulus to a finger in contact with the touch surface. The controller is configured to control the actuator in such a manner that direction to start vibration for presenting tactile stimulus to the finger is within a range from minus 43° to plus 43° with respect to a direction of gravity projected on the touch surface or the opposite direction thereof.

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