Patents by Inventor Ping-Yen Chen
Ping-Yen Chen 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).
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Patent number: 11150399Abstract: A backlight module includes a light guide member, a first light source, a second light source, a plurality of first optical microstructures, and a plurality of second optical microstructures. The light guide member has a first light incident surface and an adjacent second light incident surface. The first light source is disposed at one side of the first light incident surface and is configured to generate a first light beam. The second light source is disposed at one side of the second light incident surface and is configured to generate a second light beam. The first and the second optical microstructures are disposed at the light guide member and are configured to reflect the first and the second light beams. The reflected first light beam has a first light emitting angle range without a normal viewing angle range. A display apparatus using the backlight module is also provided.Type: GrantFiled: December 17, 2020Date of Patent: October 19, 2021Assignee: Coretronic CorporationInventors: Chun-Chien Liao, Ping-Yen Chen, Yung-Lung Liu, Chun-Wei Lee
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Publication number: 20210263352Abstract: A display device includes a view angle switching module and a display module. The view angle switching module includes a first polarizer and a view angle adjustment layer. The display module and the view angle switching module are overlapped. The display module includes a display layer and a second polarizer. The view angle adjustment layer is located between the first polarizer and the second polarizer. An average degree of polarization of the first polarizer for light with a wavelength falling within a first wavelength band is less than an average degree of polarization of the second polarizer for the light with the wavelength falling within the first wavelength band. The display device may provide a privacy function and images with good image quality.Type: ApplicationFiled: February 22, 2021Publication date: August 26, 2021Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Wen-Chun Wang, Chung-Yang Fang, Yang-Ching Lin
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Publication number: 20210238415Abstract: A method of removing metal ions is provided, which includes contacting a metal removal composition with a solution containing metal ions for removing the metal ions from the solution, wherein the metal removal composition includes a polymer with a chemical structure of: wherein Q is a quinoline-based group, n=90˜450, o=10˜50, and p=0˜20. The metal removal composition has a type of fiber or film. In addition, the metal removal composition has a porosity of 60% to 90%.Type: ApplicationFiled: April 6, 2020Publication date: August 5, 2021Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Min-Fei TSAI, Feng-Jen TSAI, Ping-Yen CHEN, Yen-Cheng LI, Li-Han CHUNG
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Patent number: 11061272Abstract: The disclosure provides a display device and an optical compensation module. The display device includes a light emitting display module and the optical compensation module. The optical compensation module is disposed on the light emitting display module along the transmission direction of an image beam emitted by the light emitting display module, and includes: a first polarizing layer and an optical compensation layer. The optical compensation layer is disposed between the light emitting display module and the first polarizing layer along the transmission direction of the image beam and has a first compensation area and a second compensation area which forms a pattern, wherein the phase compensation value of the first compensation area and the phase compensation value of the second compensation area are different. The display device and the optical compensation module have the effect of displaying the pattern on the display panel at a specific angle.Type: GrantFiled: December 23, 2019Date of Patent: July 13, 2021Assignee: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Publication number: 20210191027Abstract: A backlight module includes a light guide member, a first light source, a second light source, a plurality of first optical microstructures, and a plurality of second optical microstructures. The light guide member has a first light incident surface and an adjacent second light incident surface. The first light source is disposed at one side of the first light incident surface and is configured to generate a first light beam. The second light source is disposed at one side of the second light incident surface and is configured to generate a second light beam. The first and the second optical microstructures are disposed at the light guide member and are configured to reflect the first and the second light beams. The reflected first light beam has a first light emitting angle range without a normal viewing angle range. A display apparatus using the backlight module is also provided.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Applicant: Coretronic CorporationInventors: Chun-Chien Liao, Ping-Yen Chen, Yung-Lung Liu, Chun-Wei Lee
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Publication number: 20210181580Abstract: A backlight module including a light guide plate, a light source, a prism sheet and a light absorbing sheet is provided. The light guide plate has a light incident surface, a light emitting surface connected to the light incident surface and a bottom surface opposite to the light emitting surface. At least one of the light emitting surface and the bottom surface of the light guide plate is disposed with a plurality of micro lens structures. The light source is disposed on a side of the light incident surface of the light guide plate. The prism sheet is overlapped with the light emitting surface of the light guide plate and has a plurality of prism structures facing the light emitting surface with an extending direction parallel to the light incident surface. The light absorbing sheet is disposed on a side of the bottom surface of the light guide plate.Type: ApplicationFiled: December 3, 2020Publication date: June 17, 2021Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Patent number: 11029462Abstract: A backlight module including a light guide plate, a light source, an optical film, a first prism sheet and a second prism sheet is provided. The light guide plate has a light incident surface and a light emitting surface connected to each other. The light source is disposed on a side of the light incident surface. The optical film is overlapped with the light emitting surface and has a plurality of optical microstructures facing the light emitting surface. An angle between the extending direction of the optical microstructures and the light incident surface is 90 degrees or between 45 degrees and 90 degrees. The first prism sheet and the second prism sheet are overlapped with the optical film and are positioned on a side of the optical film being far away from the light guide plate. A display apparatus adopting the backlight module is also provided.Type: GrantFiled: May 26, 2020Date of Patent: June 8, 2021Assignee: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Jen-Wei Yu, Yang-Ching Lin, Yu-Fan Chen
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Publication number: 20210055582Abstract: A viewing angle control device including a plurality of first polarizing portions and a plurality of transmissive portions is provided. The first polarizing portions are arranged along a first direction and extended in a second direction. The transmissive portions and the first polarizing portions are alternately arranged. Each of the first polarizing portions has a width in the first direction and a height in a direction perpendicular to the first direction and the second direction. A ratio of the height to the width of the first polarizing portion is greater than 1. A display apparatus adopting the viewing angle control device is also provided. The viewing angle control device and the display apparatus provided herein have a filter effect at a large viewing angle, improved light transmittance in the viewing angle direction, and excellent anti-peeping performance.Type: ApplicationFiled: August 17, 2020Publication date: February 25, 2021Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Wen-Chun Wang
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Publication number: 20210048697Abstract: A view angle control structure and a display apparatus are provided. The display apparatus at least includes the view angle control structure, which includes first and second polarizing layers, first and second substrates and a polarization adjusting layer. The first and second polarizing layers are sequentially disposed on a transmission path of a light beam. The first and second substrates are sequentially disposed on the transmission path of the light beam and located between the first and second polarizing layers. At least one of the first and second substrates has a birefringence. The polarization adjusting layer is disposed on the transmission path of the light beam and located between the first and second substrates for changing a polarization state of the light beam according to an applied voltage. The view angle control structure and the display apparatus of the invention are excellent in anti-peeping effect, slimness and image quality.Type: ApplicationFiled: August 6, 2020Publication date: February 18, 2021Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Wen-Chun Wang
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Publication number: 20210048696Abstract: An electronically-controlled viewing angle switching device, including a liquid crystal layer, a first electrode, a second electrode, a plurality of first insulation patterns, and a plurality of second insulation patterns is provided. The first electrode and the second electrode are respectively located at a first side and a second side of the liquid crystal layer. The first insulation patterns are located at the first side of the liquid crystal layer. The second insulation patterns are located at the second side of the liquid crystal layer. Each of the first insulation patterns is at least partially overlapped with the corresponding second insulation pattern. A display device adopting the electronically-controlled viewing angle switching device is also provided. The electronically-controlled viewing angle switching device and the display device provide a good anti-peed effect from a side viewing angle.Type: ApplicationFiled: July 28, 2020Publication date: February 18, 2021Applicant: Coretronic CorporationInventors: Chung-Yang Fang, Ping-Yen Chen, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Patent number: 10921622Abstract: An anti-peeping control device includes two polarizers and a liquid crystal box disposed between the two polarizers. An included angle of 5 to 15 degrees is formed between the axial directions of the transmission axes of the two polarizers, or the axial directions of the transmission axes of the two polarizers are parallel to each other but not parallel and not perpendicular to any side edge of the polarizer. The axial directions of the transmission axes of the two polarizers are perpendicular or parallel to the alignment direction of the alignment layer of the liquid crystal box. The anti-peeping control device can use an electronic control method to switch the anti-peeping effect. A backlight module and display using the anti-peeping control device are also proposed.Type: GrantFiled: March 26, 2019Date of Patent: February 16, 2021Assignee: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Patent number: 10895777Abstract: A display device and a method for adjusting a chromaticity of a display beam are provided. A display device includes a light source module, a viewing angle switching module and a display module. The light source module includes a light source used for providing a light beam, and an illumination beam is formed by the light beam through the light source module, wherein the chromaticity of the light beam falls within a first region in the CIE 1931 xy chromaticity coordinates. The first region is a region enclosed by four coordinate points, and values of the four coordinate points of the first region are (0.2535, 0.2160), (0.2656, 0.2590), (0.2795, 0.2590), and (0.2674, 0.2160), respectively. The viewing angle switching module and the display module are located on the transmission path of the illumination beam.Type: GrantFiled: September 24, 2019Date of Patent: January 19, 2021Assignee: Coretronic CorporationInventors: Yang-Ching Lin, Chung-Yang Fang, Ping-Yen Chen
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Publication number: 20200400979Abstract: The disclosure provides a screen anti-peeping protection layer arranged above a display panel. The screen anti-peeping protection layer includes a first polarizing layer, a second polarizing layer, a viewing angle adjusting layer and a touch sensing layer. The first polarizing layer and the second polarizing layer are sequentially arranged on a transmission path of a display beam which comes from the display panel. The viewing angle adjusting layer is arranged on the transmission path and located between the first polarizing layer and the second polarizing layer, and used for changing a range of an emitted light viewing angle of the display beam. The touch sensing layer is arranged on the transmission path, and located above the viewing angle adjusting layer and opposite to the first polarizing layer. The disclosure also provides a touch display device including the screen anti-peeping protection layer and the display panel as described above.Type: ApplicationFiled: June 17, 2020Publication date: December 24, 2020Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yu-Wei Liang, Yin-Jen Lin
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Publication number: 20200379162Abstract: A backlight module including a light guide plate, a light source, an optical film, a first prism sheet and a second prism sheet is provided. The light guide plate has a light incident surface and a light emitting surface connected to each other. The light source is disposed on a side of the light incident surface. The optical film is overlapped with the light emitting surface and has a plurality of optical microstructures facing the light emitting surface. An angle between the extending direction of the optical microstructures and the light incident surface is 90 degrees or between 45 degrees and 90 degrees. The first prism sheet and the second prism sheet are overlapped with the optical film and are positioned on a side of the optical film being far away from the light guide plate. A display apparatus adopting the backlight module is also provided.Type: ApplicationFiled: May 26, 2020Publication date: December 3, 2020Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Jen-Wei Yu, Yang-Ching Lin, Yu-Fan Chen
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Publication number: 20200326567Abstract: A viewing angle switch module including a viewing angle limiting device and a first electrically controlled viewing angle switch device is provided. A plurality of first block walls of the viewing angle limiting device are arranged along a first direction and extended in a second direction. The first electrically controlled viewing angle switch device has a first liquid crystal layer, a first polarizer and a second polarizer. An angle of 90±20 degrees is included between an optical axis of the first liquid crystal layer and the first direction. The first polarizer and the second polarizer are respectively located at two opposite sides of the first liquid crystal layer. An absorption axis of the first polarizer and a, absorption axis of the second polarizer are parallel to or perpendicular to the first direction. A display apparatus adopting the viewing angle switch module is also provided.Type: ApplicationFiled: March 30, 2020Publication date: October 15, 2020Applicant: Coretronic CorporationInventors: Chung-Yang Fang, Ping-Yen Chen, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Publication number: 20200249505Abstract: A display device includes an electrically controlled viewing angle switching device including two polarizers and a liquid crystal cell disposed between the two polarizers. The liquid crystal cell includes two alignment layers and a liquid crystal material layer disposed between the two alignment layers and including a plurality of liquid crystal molecules. A direction of an optical axis of the liquid crystal molecules and a viewing angle control direction of the display device have an included angle ?1 of 70-110 degrees. Two alignment directions of the two alignment layers and the viewing angle control direction have an included angle of 90±20 degrees and an included angle of 270±20 degrees, respectively. Included angles between directions of transmission axis of the two polarizers and alignment directions of the two alignment layers are selected from one of 0±5 degrees and 90±5 degrees.Type: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Inventors: CHUNG-YANG FANG, PING-YEN CHEN, JEN-WEI YU, YANG-CHING LIN, YU-FAN CHEN
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Publication number: 20200209659Abstract: The disclosure provides a display device and an optical compensation module. The display device includes a light emitting display module and the optical compensation module. The optical compensation module is disposed on the light emitting display module along the transmission direction of an image beam emitted by the light emitting display module, and includes: a first polarizing layer and an optical compensation layer. The optical compensation layer is disposed between the light emitting display module and the first polarizing layer along the transmission direction of the image beam and has a first compensation area and a second compensation area which forms a pattern, wherein the phase compensation value of the first compensation area and the phase compensation value of the second compensation area are different. The display device and the optical compensation module have the effect of displaying the pattern on the display panel at a specific angle.Type: ApplicationFiled: December 23, 2019Publication date: July 2, 2020Applicant: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Patent number: 10678077Abstract: A display device comprises a backlight module, a display panel disposed on the backlight module, and an electrically controlled viewing angle switching device disposed on the backlight module and disposed in a stacking manner with the display panel. The display panel comprises a panel module and a first polarizer. There is an air layer or a bonding layer between the electrically controlled viewing angle switching device and the display panel. The panel module is disposed between the first polarizer and the electrically controlled viewing angle switching device. The electrically controlled viewing angle switching device comprises a liquid crystal cell, at least one phase compensation film and two second polarizers. The liquid crystal cell is disposed between the two second polarizers. The display device can switch between an anti-peeping mode and a sharing mode in an electrically controlled manner.Type: GrantFiled: April 26, 2019Date of Patent: June 9, 2020Assignee: Coretronic CorporationInventors: Chung-Yang Fang, Ping-Yen Chen, Jen-Wei Yu, Yang-Ching Lin, Yu-Fan Chen
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Patent number: 10663777Abstract: A viewing angle switchable display module includes an organic light-emitting display (OLED) panel, a viewing angle switchable device disposed on the OLED panel, and a quarter wave plate disposed between the OLED panel and the viewing angle switchable device. The viewing angle switchable device includes an absorptive polarizer, a reflective polarizer, and an electrically controlled viewing angle switching element. A transmission axis of the reflective polarizer is parallel to a transmission axis of the absorptive polarizer. The electrically controlled viewing angle switching element is disposed between the absorptive polarizer and the reflective polarizer and includes two conductive layers and a liquid crystal layer including liquid crystal molecules.Type: GrantFiled: May 9, 2019Date of Patent: May 26, 2020Assignee: Coretronic CorporationInventors: Ping-Yen Chen, Wen-Chun Wang, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu
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Publication number: 20190331945Abstract: A light source module includes an optical plate, a light source and a dimming liquid crystal panel. The dimming liquid crystal panel includes a first driving substrate, a second driving substrate and a liquid crystal material layer. The first driving substrate includes a first substrate, and a common electrode disposed between the first substrate and the liquid crystal material layer. The second driving substrate includes a second substrate, a plurality of independent electrodes, a plurality of first signal pads and a plurality of first wires. The independent electrodes, the first signal pads and the first wires are disposed between the second substrate and the liquid crystal material layer. The independent electrodes are insulated each other. Each of the independent electrodes is electrically connected to one of the first signal pads by one of the first wires. A display device having the light source module is also provided.Type: ApplicationFiled: April 19, 2019Publication date: October 31, 2019Inventors: CHUNG-YANG FANG, PING-YEN CHEN, YANG-CHING LIN, JEN-WEI YU