-
公开(公告)号：US11415872B2
公开(公告)日：2022-08-16
申请号：US17419217
申请日：2019-12-23
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: A wavelength conversion device and a light-emitting device and a projection device using the wavelength conversion device are provided. The wavelength conversion device includes a substrate capable of rotating around a rotating shaft, the substrate includes a first surface and a second surface opposite to each other, and an annular side surface, which is formed between the first surface and the second surface and is not perpendicular to the first surface. The first surface is provided with a wavelength conversion material layer, and the annular side surface includes a first area and a second area. The first area and the second area are used to reflect incident light beams.
-
72.发明授权公开(公告)号：US11353475B2
公开(公告)日：2022-06-07
申请号：US17272093
申请日：2019-03-01
Applicant: Appotronics Corporation Limited
Inventor： Songting Xie , Zaixiang Xiong , Guobo Hou , Yi Li
Abstract: A detecting device for detecting a rotation speed of the color wheel includes: a first processing unit, used to compare an external ambient temperature with a preset temperature, and outputs a logic level when the external ambient temperature is greater than the preset temperature; and a light-emitting unit, including a light-emitting body for emitting measurement light, a temperature compensation circuit, wherein the temperature compensation circuit adjusts, according to the logic level and the external ambient temperature, the resistance of a circuit in which the light-emitting body is located, causing a driving current of the light-emitting body to be within a preset current range, a reflection unit disposed on a moving color wheel and used to reflect measurement light, and a measurement and control unit used to receive the measurement light emitted periodically by the reflection unit, and to calculate the number of times that the measurement light enters.
-
公开(公告)号：US11343476B2
公开(公告)日：2022-05-24
申请号：US16981386
申请日：2018-11-05
Applicant: Appotronics Corporation Limited
Inventor： Xin Yu , Fei Hu , Zu-Qiang Guo , Yi Li
Abstract: A display apparatus comprises a light source device, an image data processing module, a light modulating device and an image synthesizing device. The light source device is configured to emit first light and second light. The image data processing module is configured to receive original image data of an image to be displayed, wherein the original image data of the image to be displayed is based on image data within a second color gamut range and comprises original control signal values of m colors of each pixel; the second color gamut range covers a first color gamut range and has a portion that exceeds the first color gamut range. The image data processing module is further configured to map the original control signal values of the m colors into m corrected control signal values corresponding to the first light and n corrected control signal values corresponding to the second light.
-
公开(公告)号：US20220149253A1
公开(公告)日：2022-05-12
申请号：US17648663
申请日：2022-01-21
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Shijie LI , Xiaofeng Tang , Zeda Tang , Yi Li
IPC: H01L33/58 , H01L25/075
Abstract: A light-shielding frame and an LED display device are provided and respectively has excellent light-shielding performance and optical display performance. The light-shielding frame includes a retaining wall and hollow grids; the retaining wall includes first and second retaining walls connected in a stacked manner along a light-emitting direction of the grids, and each grid includes first and second grid portions. The thickness of the first retaining wall decreases from one end thereof close to the second retaining wall to the other end thereof distant from the second retaining wall to form a first draft angle; the thickness of the second retaining wall decreases from one end thereof close to the first retaining wall to the other end thereof distant from the first retaining wall to form a second draft angle; the first retaining wall has the same thickness as the second retaining wall in the connection position thereof.
-
公开(公告)号：USD945516S1
公开(公告)日：2022-03-08
申请号：US29718206
申请日：2019-12-20
Applicant: Appotronics Corporation Limited
-
Patent Agency Ranking
公开(公告)号：US11243460B2
公开(公告)日：2022-02-08
申请号：US16493972
申请日：2017-04-20
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Peng Du , Lin Mi , Yi Li
Abstract: Provided is a light source device including a first light source, a light guiding system and a wavelength conversion device. The first light source emits first exciting light which is incident to the light guiding system along an incidence light channel. The wavelength conversion section absorbs the first exciting light and emits excited light. The first exciting light is obliquely incident to a surface of the reflective section and reflected to form second exciting light. The light guiding system collects the excited light and the second exciting light and guides them to be emitted along an exiting light channel. The light guiding system includes an optical path correcting assembly, which reflects the second exciting light in such a manner that main optical axes of the reflected second exciting light and the excited light coincide, and changes a beam angular distribution of the second exciting light.
-
公开(公告)号：US20220038666A1
公开(公告)日：2022-02-03
申请号：US17278517
申请日：2019-05-15
Applicant: Appotronics Corporation Limited
IPC: H04N9/31
Abstract: An image display method includes according to image information of a current image frame to be displayed, adjusting the brightness of a first light source (11) having a first light field, and steering light of a second light source (12) to form a second light field, so as to enable the first light field provided by the second light source (11) and the second light field provided by the second light source (12) to work in concert to satisfy displaying of display partitions of the image frame to be displayed. The image display method implements high-dynamic range display of images, and facilitates improvement of dark field detail expression of images to be displayed. Also provided are an image display apparatus and a projection device.
-
公开(公告)号：US20220005988A1
公开(公告)日：2022-01-06
申请号：US17280782
申请日：2019-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
IPC: H01L33/60 , H01L25/075 , G02B5/02 , G02B5/30
Abstract: An LED display screen, comprising: an LED array, consisting of multiple LED light-emitting units and used for emitting a light; an optical diffusion film, provided at a light exit side of the LED array; a matrix shading frame, comprising multiple hollow shading gratings, the hollow shading gratings corresponding one-to-one to the LED light-emitting units; and a substrate, used for supporting the LED array and the matrix shading frame, where the light emitted by the LED light-emitting units, after running through the hollow shading gratings, is diffused to a viewer side via the optical diffusion film, and the LED light-emitting units emit the light towards the hollow shading gratings. The LED display screen prevents external ambient lights from being shone to optical surfaces of the LED light-emitting units and being reflected thereby, thus increasing the contrast of the LED display screen.
-
79.发明授权公开(公告)号：US11150547B2
公开(公告)日：2021-10-19
申请号：US16099417
申请日：2017-04-21
Applicant: Appotronics Corporation Limited
Inventor： Zuqiang Guo , Fei Hu , Yi Li
Abstract: A light source system includes an excitation light unit, a spectral filter unit, a scattering unit, and an excited-light unit. The excitation light unit is configured to emit excitation light. In an embodiment, the spectral filter unit reflects a portion of the excitation light to the scattering unit, the scattering unit scatters the same to generate a first light and a second light, and the spectral filter unit transmits the second light. The spectral filter unit also transmits another part of the excitation light to the excited-light unit, the excited-light unit emits excited light under the illumination thereof, and the spectral filter unit reflects the excited light, so that the spectral filter unit merges and emits the transmitted second light and the reflected excited light. The excitation light is thus split into two paths at the spectral filter unit, and finally emits light by combining excitation light and excited light.
-
公开(公告)号：USRE48107E1
公开(公告)日：2020-07-21
申请号：US15088548
申请日：2016-04-01
Applicant: APPOTRONICS CORPORATION LIMITED
IPC: G03B21/20 , H05B45/20 , H04N9/31 , F21V17/04 , F21S10/02 , F21V7/00 , F21S10/00 , F21Y115/10 , F21Y115/30
Abstract: A multicolor illumination device using an excitation light source and a multi-segmented moving plate with wavelength conversion materials (e.g. phosphors) is disclosed. The exciting light source is a light emitting diode or a laser diode emitting in the UV and/or blue region. The wavelength conversion materials absorb the excitation light and emit longer wavelength light. Each segment of the moving plate contains a different wavelength conversion material or no wavelength conversion material. The plate is supported to move so that different segments are exposed to the excitation light at different times. The plate may be a wheel or rectangular in shape and rotates or oscillates linearly. When the plate moves, light of different colors is generated sequentially in time by the different wavelength conversion materials in different segments of the plate. The multicolor illumination device may be used in a projector system having a microdisplay imager for image display.
-
-
-
-
-
-
-
-
-
Search Results
147
records
(took 0.038 seconds)
