Patents by Inventor WEI-KAI LEE
WEI-KAI LEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11968856Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.Type: GrantFiled: October 4, 2021Date of Patent: April 23, 2024Assignee: Applied Materials, Inc.Inventors: Chung-Chih Wu, Po-Jui Chen, Hoang Yan Lin, Guo-Dong Su, Wei-Kai Lee, Chi-Jui Chang, Wan-Yu Lin, Byung Sung Kwak, Robert Jan Visser
-
Patent number: 11956994Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.Type: GrantFiled: August 10, 2021Date of Patent: April 9, 2024Assignee: Applied Materials, Inc.Inventors: Chung-Chih Wu, Hoang Yan Lin, Guo-Dong Su, Zih-Rou Cyue, Li-Yu Yu, Wei-Kai Lee, Guan-Yu Chen, Chung-Chia Chen, Wan-Yu Lin, Gang Yu, Byung-Sung Kwak, Robert Jan Visser, Chi-Jui Chang
-
Publication number: 20240113202Abstract: Embodiments of the present disclosure relate to a FinFET device having gate spacers with reduced capacitance and methods for forming the FinFET device. Particularly, the FinFET device according to the present disclosure includes gate spacers formed by two or more depositions. The gate spacers are formed by depositing first and second materials at different times of processing to reduce parasitic capacitance between gate structures and contacts introduced after epitaxy growth of source/drain regions.Type: ApplicationFiled: December 1, 2023Publication date: April 4, 2024Inventors: Wen-Kai Lin, Bo-Yu Lai, Li Chun Te, Kai-Hsuan Lee, Sai-Hooi Yeong, Tien-I Bao, Wei-Ken Lin
-
Publication number: 20240093786Abstract: A sealing mechanism is provided, including a housing, a groove, and a sealing element. The housing includes a first member and a second member, and the groove is formed between the first and second members. The sealing element is formed in the groove by Low Pressure Molding (LPM) and surrounds at least one of the first and second members.Type: ApplicationFiled: November 16, 2023Publication date: March 21, 2024Inventors: Wei-Kai HSIAO, Yao-Tsung LEE
-
Publication number: 20230320139Abstract: Embodiments of the present disclosure generally relate to electroluminescent devices, such as organic light-emitting diodes, and displays including electroluminescent devices. In an embodiment is provided an electroluminescent device that includes a pixel defining layer, an organic emitting unit disposed over at least a portion of the pixel defining layer, and a filler layer disposed over at least a portion of the organic emitting unit, wherein a refractive index of the pixel defining layer is lower than a refractive index of the filler layer, and wherein the refractive index of the pixel defining layer is lower than a refractive index of one or more layers of the organic emitting unit. In another embodiment is provided a display device that includes a substrate, a thin film transistor formed on the substrate, an interconnection electrically coupled to the thin film transistor, and an electroluminescent device electrically coupled to the interconnection.Type: ApplicationFiled: September 21, 2020Publication date: October 5, 2023Inventors: Chung-chia CHEN, Wan-Yu LIN, Hyunsung BANG, Lisong XU, Gang YU, Byung-Sung KWAK, Robert Jan VISSER, Chung-Chih WU, Hoang Yan LIN, Guo-Dong SU, Wei-Kai LEE, Yi-Jiun CHEN, Ting-Sheng HSU, Po-Hsiang LIAO, Wei-Cheng LIN
-
Publication number: 20230274432Abstract: A brain tumor types distinguish system includes an image outputting device and a server computing device. The image outputting device outputs at least three brain images captured from the position of a brain tumor. The server computing device pre-stores a plurality of distinguish pathways corresponding to different types of brain tumors. The server computing device includes an image receiving module, an image pre-processing module, a data comparison module and a distinguish module. The image receiving module receives the brain images. The image pre-processing module pre-processes the brain images to obtain corresponding processed images thereof. The data comparison module compares the brain images and the processed images with the distinguish pathways to obtain at least three comparison results. The distinguish module statistically analyzes the comparison results to obtain a distinguish result.Type: ApplicationFiled: August 16, 2022Publication date: August 31, 2023Inventors: Cheng-Chia LEE, Huai-Che YANG, Wen-Yuh CHUNG, Chih-Chun WU, Wan-Yuo GUO, Ya-Xuan YANG, Tzu-Hsuan HUANG, Chun-Yi LIN, Wei-Kai LEE, Chia-Feng LU, Yu-Te WU
-
Publication number: 20230109619Abstract: A light-emitting pixel structure is described that may include a group of light-emitting diode structures, where each of the light-emitting diode structures is operable to emit light characterized by a different peak emission wavelength. The structures may also include a patterned light absorption barrier characterized by a group of openings in the barrier, where each of the openings permit a transmission of a portion of the light from one of the light-emitting diode structures through the barrier. The structures may further include a metasurface layer operable to change a direction of at least some of the light transmitted through the openings of the patterned light absorption barrier from the light-emitting diode structures.Type: ApplicationFiled: October 4, 2021Publication date: April 6, 2023Applicant: Applied Materials, Inc.Inventors: Chung-Chih Wu, Po-Jui Chen, Hoang Yan Lin, Guo-Dong Su, Wei-Kai Lee, Wan-Yu Lin, Byung Sung Kwak, Robert Jan Visser, Chi-Jui Chang
-
Publication number: 20230105225Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.Type: ApplicationFiled: October 4, 2021Publication date: April 6, 2023Applicant: Applied Materials, Inc.Inventors: Chung-Chih Wu, Po-Jui Chen, Hoang Yan Lin, Guo-Dong Su, Wei-Kai Lee, Chi-Jui Chang, Wan-Yu Lin, Byung Sung Kwak, Robert Jan Visser
-
Patent number: 11475563Abstract: A benign tumor development trend assessment system includes an image outputting device and a server computing device. The image outputting device outputs first/second images captured from the same position in a benign tumor. The server computing device includes an image receiving module, an image pre-processing module, a target extracting module, a feature extracting module and a trend analyzing module. The image receiving module receives the first/second images. The image pre-processing module pre-processes the first/second images to obtain first/second local images. The target extracting module automatically detects and delineates tumor regions from the first/second local images to obtain first/second region of interest (ROI) images. The feature extracting module automatically identifies the first/second ROI images to obtain at least one first/second features. The trend analyzing module analyzes the first/second features to obtain a tumor development trend result.Type: GrantFiled: July 27, 2020Date of Patent: October 18, 2022Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITYInventors: Cheng-Chia Lee, Huai-Che Yang, Wen-Yuh Chung, Chih-Chun Wu, Wan-Yuo Guo, Wei-Kai Lee, Tzu-Hsuan Huang, Chun-Yi Lin, Chia-Feng Lu, Yu-Te Wu
-
Publication number: 20220157472Abstract: A method for enhancing an accuracy of a benign tumor development trend assessment system includes: a first processing procedure, an image captured before the treatment is inputted to and be processed by a server computing device of the benign tumor development trend assessment system to obtain a first processing result; a second processing procedure, the images captured before and in at least one period after the treatment are inputted to and processed by the server computing device to obtain a second processing result; a trend analyzing procedure, the trend analyzing module of the server computing device analyzes the first processing result, the second processing result and the trend pathways to obtain a tumor development trend result; and a storing procedure, the first processing result, the second processing result and the tumor development trend result are transformed to an individual trend pathway which is stored in the trend analyzing module.Type: ApplicationFiled: February 1, 2022Publication date: May 19, 2022Inventors: CHENG-CHIA LEE, HUAI-CHE YANG, WEN-YUH CHUNG, CHIH-CHUN WU, WAN-YUO GUO, WEI-KAI LEE, TZU-HSUAN HUANG, CHUN-YI LIN, CHIA-FENG LU, YU-TE WU
-
Publication number: 20220059803Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.Type: ApplicationFiled: August 10, 2021Publication date: February 24, 2022Inventors: Chung-Chih WU, Hoang Yan LIN, Guo-Dong SU, Zih-Rou CYUE, Li-Yu YU, Wei-Kai LEE, Guan-Yu CHEN, Chung-Chia CHEN, Wan-Yu LIN, Gang YU, Byung-Sung KWAK, Robert Jan VISSER, Chi-Jui CHANG
-
Publication number: 20220029135Abstract: Embodiments described herein relate to spatial optical differentiators and layer architecture of adjacent functional layers disposed above or below organic light-emitting diode (OLED) display pixels. A functional unit for an electroluminescent (EL) device pixel includes a spatial optical differentiator disposed adjacent the EL device pixel. The spatial optical differentiator is configured to selectively reflect and transmit light based on an incident angle of light upon the functional unit. For top-emitting OLED, the functional unit includes a thin film encapsulation (TFE) stack disposed over the spatial optical differentiator. For bottom-emitting OLED, the functional unit includes the spatial optical differentiator disposed above at least one of a planar layer or an isolation layer. Also described herein are methods for fabricating the functional unit.Type: ApplicationFiled: July 9, 2021Publication date: January 27, 2022Inventors: Chung-Chia CHEN, Byung-Sung KWAK, Robert Jan VISSER, Chung-Chih WU, Wei-Kai LEE, Po-Hsiang LIAO, Chang-Cheng LEE
-
Publication number: 20220020951Abstract: Embodiments described herein relate to graded slope bottom reflective electrode layer structures for top-emitting organic light-emitting diode (OLED) display pixels. An EL device includes a pixel definition layer having a top surface, a bottom surface, and graded sidewalls interconnecting the top and bottom surfaces and a bottom reflective electrode layer disposed over the pixel definition layer. The bottom reflective electrode layer includes a planar electrode portion disposed over the bottom surface and a graded reflective portion disposed over the graded sidewalls, where the graded reflective portion has a concave profile. The EL device includes an organic layer disposed over the bottom reflective electrode layer and a top electrode disposed over the organic layer. Also described herein are methods for fabricating the EL device.Type: ApplicationFiled: July 13, 2021Publication date: January 20, 2022Inventors: Chung-Chia CHEN, Wan-Yu LIN, Gang YU, Byung-Sung KWAK, Robert Jan VISSER, Hyunsung BANG, Lisong XU, Chung-Chih WU, Hoang Yan LIN, Guo-Dong SU, YI-Jiun CHEN, Wei-Kai LEE
-
Publication number: 20210272276Abstract: A benign tumor development trend assessment system includes an image outputting device and a server computing device. The image outputting device outputs first/second images captured from the same position in a benign tumor. The server computing device includes an image receiving module, an image pre-processing module, a target extracting module, a feature extracting module and a trend analyzing module. The image receiving module receives the first/second images. The image pre-processing module pre-processes the first/second images to obtain first/second local images. The target extracting module automatically detects and delineates tumor regions from the first/second local images to obtain first/second region of interest (ROI) images. The feature extracting module automatically identifies the first/second ROI images to obtain at least one first/second features. The trend analyzing module analyzes the first/second features to obtain a tumor development trend result.Type: ApplicationFiled: July 27, 2020Publication date: September 2, 2021Inventors: Cheng-Chia Lee, Huai-Che Yang, Wen-Yuh Chung, Chih-Chun Wu, Wan-Yuo Guo, Wei-Kai Lee, Tzu-Hsuan Huang, Chun-Yi Lin, Chia-Feng Lu, Yu-Te Wu
-
Patent number: 10680208Abstract: The present invention discloses a general, highly effective and scalable extraction-enhancing OLED display pixel structure based on embedding the OLED inside a three-dimensional reflective concave structure selectively filled with a high-index filler material. Such a structure is able to couple as much as possible internally generated photons into the filler region and then redirect otherwise confined light for out-coupling via the reflective concave structure. Ultimately high light extraction efficiency approaching ˜80% and excellent viewing characteristics are simultaneously achievable with optimized structures using highly transparent top electrodes. This scheme is scalable and wavelength insensitive, and thus can be generally applied to all red, green, and blue pixel OLEDs in high-resolution full-color displays.Type: GrantFiled: August 2, 2019Date of Patent: June 9, 2020Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Chung-Chih Wu, Guo-Dong Su, Hoang Yan Lin, Wei-Kai Lee, Yi-Jiun Chen
-
Publication number: 20190372055Abstract: The present invention discloses a general, highly effective and scalable extraction-enhancing OLED display pixel structure based on embedding the OLED inside a three-dimensional reflective concave structure selectively filled with a high-index filler material. Such a structure is able to couple as much as possible internally generated photons into the filler region and then redirect otherwise confined light for out-coupling via the reflective concave structure. Ultimately high light extraction efficiency approaching ˜80% and excellent viewing characteristics are simultaneously achievable with optimized structures using highly transparent top electrodes. This scheme is scalable and wavelength insensitive, and thus can be generally applied to all red, green, and blue pixel OLEDs in high-resolution full-color displays.Type: ApplicationFiled: August 2, 2019Publication date: December 5, 2019Inventors: Chung-Chih Wu, Guo-Dong Su, Hoang Yan Lin, Wei-Kai Lee, Yi-Jiun Chen
-
Patent number: 10483496Abstract: An electroluminescent (EL) device is disclosed. An optically reflective concave structure includes a first surface and a second surface that lies at an angle relative to the first surface, wherein at least the first and second surfaces are optically reflective. One or more functional layers include a light emitting layer, disposed over the surfaces of the optically reflective concave structure, wherein at least one electroluminescent area of the light emitting layer is defined on the first surface. Especially, the ratio between the diameter of the first surface and the thickness of the one or more functional layers in the optically reflective concave structure is smaller than a constant value.Type: GrantFiled: August 4, 2017Date of Patent: November 19, 2019Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Chung-Chih Wu, Chun-Yu Lin, Wei-Kai Lee, Min Jiao, Hoang Yan Lin, Guo-Dong Su
-
Patent number: 10276821Abstract: An electroluminescent (EL) device is disclosed, comprising a high-index layer, having a first refractive index more than 1.8; a first electrode, which is transparent and disposed adjacent to the high-index layer; one or more functional layers, disposed adjacent to the first electrode and opposite to the high-index layer, including a light emitting layer; and, a second electrode, disposed adjacent to the one or more functional layers and opposite to the first electrode; wherein the first electrode has a second refractive index less than 1.7.Type: GrantFiled: October 24, 2016Date of Patent: April 30, 2019Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Chung-Chih Wu, Min Jiao, Chun-Yang Lu, Wei-Kai Lee
-
Publication number: 20170358779Abstract: An electroluminescent (EL) device is disclosed. An optically reflective concave structure includes a first surface and a second surface that lies at an angle relative to the first surface, wherein at least the first and second surfaces are optically reflective. One or more functional layers include a light emitting layer, disposed over the surfaces of the optically reflective concave structure, wherein at least one electroluminescent area of the light emitting layer is defined on the first surface. Especially, the ratio between the diameter of the first surface and the thickness of the one or more functional layers in the optically reflective concave structure is smaller than a constant value.Type: ApplicationFiled: August 4, 2017Publication date: December 14, 2017Inventors: Chung-Chih Wu, Chun-Yu Lin, Wei-Kai Lee, Min Jiao, Hoang Yan Lin, Guo-Dong Su
-
Patent number: 9837637Abstract: An electroluminescent (EL) device is disclosed, comprising a first electrode, a second electrode, one or more functional layers, and a conducting layer. The first electrode is transparent and with a high refractive index nH more than 1.75. The one or more functional layers include a light emitting layer. The conducting layer has a low refractive index nL less than 1.65, being disposed between the first electrode and the one or more functional layers. By judicious combination of the first electrode and conducting layer to induce appropriate microcavity effects, increased coupling efficiencies of EL device could be then obtained.Type: GrantFiled: October 15, 2015Date of Patent: December 5, 2017Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Chung-Chih Wu, Yi-Hsiang Huang, Wei-Lung Tsai, Min Jiao, Wei-Kai Lee