Patents by Inventor Po-Hung Yao

Po-Hung Yao 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: 11474388
    Abstract: The present disclosure relates to a display panel. The display panel includes a first substrate, a second substrate, a display material layer, an active component layer, a color filter layer and a light source. The display material layer is disposed between the first substrate and the second substrate. The active component layer and the color filter layer are disposed between the first substrate and the display material layer. The light source is disposed on one side of the second substrate, and emits light. The light passes through the second substrate and the color filter layer and arrives at the first substrate, and is reflected by the first substrate and then enters the color filter layer. The light further passes through the color filter layer, enters the display material layer, passes through the display material layer, and is outputted to the exterior.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 18, 2022
    Assignee: SICHUAN LONGHUA FILM CO. LTD.
    Inventors: Po Hung Yao, Yao-Chang Wang, Erh-Ming Hsieh
  • Patent number: 11385394
    Abstract: A front light source module includes a light guide assembly and a light source assembly. The light guide assembly includes a light guide body and surface optical microstructures. The light guide body includes a first optical surface, a second optical surface opposite to the first optical surface, and a light incident surface. The light incident surface is connected between the first and second optical surfaces. The first optical surface is close to a viewer. The surface optical microstructures are embedded in the light guide body. Each surface optical microstructure includes an inclined surface and a transflective layer. The inclined surface is relatively inclined to the first optical surface or the second optical surface. The transflective layer is disposed on the inclined surface. The light source assembly is disposed beside the light incident surface. A reflective display device adopting the front light source module is also provided.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 12, 2022
    Assignee: Sichuan Longhua Film Co., Ltd.
    Inventors: Po-Hung Yao, Yao-Chang Wang
  • Publication number: 20220019104
    Abstract: The present disclosure relates to a display panel. The display panel includes a first substrate, a second substrate, a display material layer, an active component layer, a color filter layer and a light source. The display material layer is disposed between the first substrate and the second substrate. The active component layer and the color filter layer are disposed between the first substrate and the display material layer. The light source is disposed on one side of the second substrate, and emits light. The light passes through the second substrate and the color filter layer and arrives at the first substrate, and is reflected by the first substrate and then enters the color filter layer. The light further passes through the color filter layer, enters the display material layer, passes through the display material layer, and is outputted to the exterior.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Inventors: PO HUNG YAO, YAO-CHANG WANG, ERH-MING HSIEH
  • Publication number: 20210373225
    Abstract: A front light source module includes a light guide assembly and a light source assembly. The light guide assembly includes a light guide body and optical microstructures. The light guide body includes a first optical surface, a second optical surface and a light incident surface. The first optical surface and the second optical surface are opposed to each other. The light incident surface is connected between the first optical surface and the second optical surface. The first optical surface is close to a viewer side. The optical microstructures are formed on at least one of the first optical surface and the second optical surface. Each optical microstructure has an inclined side surface relatively inclined to one of the first optical surface and the second optical surface. The light source assembly is disposed beside the light incident surface. A reflective display device having the front light source module is also provided.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 2, 2021
    Inventors: PO-HUNG YAO, YAO-CHANG WANG
  • Publication number: 20210356642
    Abstract: A front light source module includes a light guide assembly and a light source assembly. The light guide assembly includes a light guide body and surface optical microstructures. The light guide body includes a first optical surface, a second optical surface opposite to the first optical surface, and a light incident surface. The light incident surface is connected between the first and second optical surfaces. The first optical surface is close to a viewer. The surface optical microstructures are embedded in the light guide body. Each surface optical microstructure includes an inclined surface and a transflective layer. The inclined surface is relatively inclined to the first optical surface or the second optical surface. The transflective layer is disposed on the inclined surface. The light source assembly is disposed beside the light incident surface. A reflective display device adopting the front light source module is also provided.
    Type: Application
    Filed: April 22, 2021
    Publication date: November 18, 2021
    Inventors: PO-HUNG YAO, YAO-CHANG WANG
  • Publication number: 20210208315
    Abstract: A light diffusion film module including stacked first and second optical films is stacked on an array light source to form a light source module, Light incident and outputting sides of the first optical film are respectively provided with irregularly array-arranged first optical elements and array-arranged second optical elements, which are not aligned in position one by one. Inclined lateral faces of the first optical elements are partially parallel and inclined lateral faces of the second optical elements are partially parallel. The second optical film has a light incident side adjacent to the first optical film, and a light outputting side with regularly arranged third optical elements. Inclined lateral faces of the third optical elements are parallel. As such, the light diffusion film module can effectively and uniformly diffuse the light from the array light source in a short distance and eliminate direct glare under good light emitting efficiency.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 8, 2021
    Inventors: Po-Hung YAO, Chih-Hua FENG
  • Publication number: 20200201088
    Abstract: A viewing angle control film includes two opposite transparent electrodes and a modulation layer. The modulation layer is disposed between the two opposite transparent electrodes and the modulation layer includes a plurality of microstructures, a plurality of first optical coatings and a plurality of liquid crystal molecules. The microstructures are spaced apart. Each of the microstructures includes at least a first side and a second side opposite to each other. There is a spacing space between the first side of each of the microstructures and the second side of another adjacent microstructure. The plurality of first optical coatings is respectively coated on at least one of the first side and the second side of each of the microstructures. The plurality of liquid crystal molecules is disposed in the spacing spaces. A display device using the viewing angle control film is also provided.
    Type: Application
    Filed: December 22, 2019
    Publication date: June 25, 2020
    Inventor: PO-HUNG YAO
  • Patent number: 10664065
    Abstract: A touch sensing apparatus includes at least one conductive sensing element and a reading device. The conductive sensing element includes a substrate and a conductive sensing layer. The conductive sensing layer is disposed on at least one surface of the substrate. The conductive sensing layer includes a plurality of conductive sensing units and a plurality of transparent conductive wires. An orientation distribution of the conductive sensing units is by a coordinate encoding method to constitute a coding pattern. The coding pattern includes coordinate information. The reading device is actuated on the conductive sensing layer, senses and decodes the coding pattern to analyze the coordinate information. The touch sensing apparatus can perform a digital writing and recording without power supply.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 26, 2020
    Assignee: CHI HSIANG OPTICS CO., LTD.
    Inventor: Po Hung Yao
  • Patent number: 10474247
    Abstract: A user input system includes an optical wave plate assembly a reading device. The optical wave plate assembly includes a phase wave plate and a phase retardation layer. The phase retardation layer is disposed on at least one surface of the phase wave plate. The phase retardation layer includes a code pattern with coordinate information. The optical wave plate assembly converts incident light into at least one of a first polarized light having a first polarization state and a second polarized light having a second polarization state through the phase retardation layer. The first polarization state and the second polarization state are different. The reading device is operated on the optical wave plate assembly for sensing presence or absence of the first polarized light, analyzing a distribution of a change in brightness of the code pattern, and performing a decoding to obtain the coordinate information.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 12, 2019
    Assignee: CHI HSIANG OPTICS CO., LTD.
    Inventor: Po Hung Yao
  • Patent number: 10466892
    Abstract: Provided are an interactive handwriting display device and an interactive handwriting capture device. The interactive handwriting display device has a display panel and a patterned band-pass filter component, and the patterned band-pass filter component has a substrate and multiple band-pass filter units. The interactive handwriting capture device includes an optical signal selector, an image-forming module, a photodetector chip and a microprocessor. By using the interactive handwriting display device with a patterned filtering function and the interactive handwriting capture device with the recognition function, the addressable ITO sensor's need of electrical connection is eliminated, providing interactive operating function and the writing function of high sensitivity and accuracy. Also, the manufacturing complexities are reduced and the integration of components is improved as the touch screens get larger in size.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 5, 2019
    Assignees: CHI HSIANG OPTICS CO., LTD., NEOLAB CONVERGENCE TAIWAN INC.
    Inventors: Po-Hung Yao, Hsien-Ching Chang
  • Patent number: 10444859
    Abstract: A digital pen of the present disclosure includes a pen rod, an annular lens set provided in the pen rod, a pen core passing through the annular lens set and coaxial with the pen rod, a light source provided next to the pen core, an image receiver provided in the pen rod and operable to receive reflection light of light beams emitted from the light source, a microprocessor operable to control the light source and operable to receive a signal of the image receiver and perform analysis to acquire coordinate information of a position of the pen core, a wireless transmission module operable to transmit the coordinate information to an exterior, and a power source.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 15, 2019
    Assignee: CHI HSIANG OPTICS CO., LTD.
    Inventor: Po Hung Yao
  • Publication number: 20180356902
    Abstract: A touch sensing apparatus includes at least one conductive sensing element and a reading device. The conductive sensing element includes a substrate and a conductive sensing layer. The conductive sensing layer is disposed on at least one surface of the substrate. The conductive sensing layer includes a plurality of conductive sensing units and a plurality of transparent conductive wires. An orientation distribution of the conductive sensing units is by a coordinate encoding method to constitute a coding pattern. The coding pattern includes coordinate information. The reading device is actuated on the conductive sensing layer, senses and decodes the coding pattern to analyze the coordinate information. The touch sensing apparatus can perform a digital writing and recording without power supply.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 13, 2018
    Inventor: PO HUNG YAO
  • Publication number: 20180356941
    Abstract: A user input system includes an optical wave plate assembly a reading device. The optical wave plate assembly includes a phase wave plate and a phase retardation layer. The phase retardation layer is disposed on at least one surface of the phase wave plate. The phase retardation layer includes a code pattern with coordinate information. The optical wave plate assembly converts incident light into at least one of a first polarized light having a first polarization state and a second polarized light having a second polarization state through the phase retardation layer. The first polarization state and the second polarization state are different. The reading device is for acting on the optical wave plate assembly, sensing presence or absence of the first polarized light having the first polarization state, analyzing a distribution of a change in brightness of the code pattern, and performing a decoding to obtain the coordinate information.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 13, 2018
    Inventor: PO HUNG YAO
  • Publication number: 20180348897
    Abstract: A digital pen of the present disclosure includes a pen rod, an annular lens set provided in the pen rod, a pen core passing through the annular lens set and coaxial with the pen rod, a light source provided next to the pen core, an image receiver provided in the pen rod and operable to receive reflection light of light beams emitted from the light source, a microprocessor operable to control the light source and operable to receive a signal of the image receiver and perform analysis to acquire coordinate information of a position of the pen core, a wireless transmission module operable to transmit the coordinate information to an exterior, and a power source.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 6, 2018
    Inventor: PO HUNG YAO
  • Publication number: 20180172979
    Abstract: An optical film includes a substrate and a phase compensation layer. The substrate has a sensing surface and an opposite back surface. The phase compensation layer is disposed on at least one of the sensing surface and the back surface of the substrate to reflect or transmit a sensing light with a particular phase, wherein the phase compensation layer includes a coding pattern and the coding pattern includes coded information. The foregoing optical film has no optical phase compensation for natural light in an environment, so that the optical film has high transmittance of the natural light. A user input system including the foregoing optical film is also disclosed.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventor: Po-Hung YAO
  • Publication number: 20180101296
    Abstract: Provided are an interactive handwriting display device and an interactive handwriting capture device. The interactive handwriting display device has a display panel and a patterned band-pass filter component, and the patterned band-pass filter component has a substrate and multiple band-pass filter units. The interactive handwriting capture device includes an optical signal selector, an image-forming module, a photodetector chip and a microprocessor. By using the interactive handwriting display device with a patterned filtering function and the interactive handwriting capture device with the recognition function, the addressable ITO sensor's need of electrical connection is eliminated, providing interactive operating function and the writing function of high sensitivity and accuracy. Also, the manufacturing complexities are reduced and the integration of components is improved as the touch screens get larger in size.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 12, 2018
    Applicants: CHI HSIANG OPTICS CO., LTD., NEOLAB CONVERGENCE TAIWAN INC.
    Inventors: Po-Hung YAO, Hsien-Ching CHANG
  • Publication number: 20180046326
    Abstract: An optical film includes a substrate and a reflecting layer. The substrate has a sensing surface and an opposite back surface. The reflecting layer is disposed on the sensing surface of the substrate to reflect a sensing light and includes a coding pattern, wherein the coding pattern is formed by damaging a structure of the reflecting layer, and the coding pattern includes a coding information. The above-mentioned coding pattern of the optical film is a depressed structure, which can reduce the wear caused by the repeated writing of an optical reading device. A user input system including the above-mentioned optical film is disclosed as well.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 15, 2018
    Inventors: Po-Hung YAO, Feng-Chih CHEN, Hsien-Ching CHANG
  • Publication number: 20180039337
    Abstract: An optical film includes a substrate, a scattering layer, a coding pattern and a coating layer. The substrate has a sensing surface and an opposite back surface. The scattering layer is disposed on at least one of the sensing surface and the back surface of the substrate to scatter a sensing light. The coding pattern is disposed on the scattering layer to reflect the sensing light, wherein the coding pattern includes coded information. The coating layer covers the scattering layer and the coding pattern. The coding pattern of the optical film is able to diffusely reflect the sensing light, so that an optical reader device may obtain a uniform image of the coding pattern.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Inventors: Po-Hung YAO, Feng-Chih CHEN, Hsien-Ching CHANG
  • Publication number: 20170293371
    Abstract: An optical film includes a substrate, an absorption pattern and a scattering reflection layer. The substrate has a contact surface and a back surface opposite the contact surface, wherein the substrate allows a first light to pass and is made of a non-rigid material. The absorption pattern is arranged on the contact surface of the substrate to absorb the first light. The scattering reflection layer is arranged on the back surface of the substrate to scatter and reflect the first light to the contact surface of the substrate. The foregoing optical film enables an optical reader device to detect variations of the reflected first light, which is caused by deformation of the substrate, so that the corresponding force information can be obtained. A user input system including the foregoing optical film is also disclosed.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 12, 2017
    Inventors: Po-Hung YAO, Feng-Chih CHEN, Hsien-Ching CHANG
  • Publication number: 20160223356
    Abstract: A light-emitting pedometer sneaker includes a body, at least one multicolor light-emitting unit and a pedometer module. The multicolor light-emitting unit is mounted on a vamp of the body. The pedometer module is mounted on a sole of the body, calculates a number of steps that a user has walked according to vibration generated when the user is walking, and controls a color of light emitted from the multicolor light-emitting unit. The user can be aware of the number of steps that the user has walked according to the color of the light emitted from the multicolor light-emitting unit and plans for a desired amount of exercise for the purpose of adequate exercise. The light-emitting pedometer sneaker can emit light in the dark to warn vehicles in the neighborhood off and avoid occurrence of a traffic accident.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 4, 2016
    Inventors: PO-HUNG YAO, JHIH-PING LU, WEN-HSUN YANG, HSIAO-PING LIANG