Patents by Inventor Chih-Chiang Chen
Chih-Chiang 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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Publication number: 20200133061Abstract: A polarizer substrate includes a substrate, an organic planarization layer, an inorganic buffer layer, and a plurality of strip-shaped polarizer structures. The organic planarization layer is located on the substrate. The inorganic buffer layer is located on the organic planarization layer. The inorganic buffer layer has a plurality of trenches located on a first surface. The trenches do not penetrate through the inorganic buffer layer. The strip-shaped polarizer structures are located on the first surface of the inorganic buffer layer. Each of the trenches is located between two adjacent polarizer structures. A display panel is also provided.Type: ApplicationFiled: May 9, 2019Publication date: April 30, 2020Applicant: Au Optronics CorporationInventors: Tsai-Sheng Lo, Chih-Chiang Chen, Ming-Jui Wang, Sheng-Kai Lin, Sheng-Ming Huang, Chia-Hsin Chung, Hui-Ku Chang, Wei-Chi Wang, Jen-Kuei Lu
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Patent number: 10634947Abstract: An edge backlight module, a display apparatus and a backlight controlling method thereof are provided. Each light guide plate (LGP) is divided into longitudinal region(s) in the same direction. The LGPs are arranged in a stacked manner. Each two adjacent LGPs are arranged as upper LGP being completely overlapped with the longitudinal region(s) of lower LGP. The longitudinal region overlapped with adjacent upper LGP is defined as a reflecting region. The longitudinal region not overlapped with adjacent upper LGP is defined as an emitting region. Each LGP has one emitting region. Each reflecting film is sandwiched between two adjacent LGPs. Light from a light emitting device is emitted from the emitting region. Combing with lighting control at lateral region(s) separately, an array region is formed. The light emitting device further includes a high saturation light emitter to render an effect with a high dynamic range and high saturation.Type: GrantFiled: November 2, 2017Date of Patent: April 28, 2020Assignee: Acer IncorporatedInventors: Yi-Chang Lai, Chih-Chiang Chen, Hsu-Hsiang Tseng, Ruey-Ching Shyu
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Patent number: 10636835Abstract: A light emitting diode display including at least one light emitting diode chip is provided. The light emitting diode chip includes a first substrate, a plurality of light emitting diodes, a first insulation layer and a plurality of switch devices. The plurality of light emitting diodes are disposed on the first substrate. The first insulation layer covers the plurality of light emitting diodes. The plurality of switch devices are disposed on the first insulation layer and electrically connected to the plurality of light emitting diodes. Moreover, a fabricating method of the light emitting diode display is also provided.Type: GrantFiled: July 26, 2018Date of Patent: April 28, 2020Assignee: Acer IncorporatedInventors: Jui-Chieh Hsiang, Hsu-Hsiang Tseng, Chih-Chiang Chen
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Publication number: 20200117257Abstract: A power control device including a main battery, an auxiliary battery, a charging circuit, and a control circuit, for supplying power to a load is proposed. The main battery supplies power to the load. A volume, a capacity, and an output voltage of the auxiliary battery are all less than those of the main battery. The charging circuit receives a power input signal from a power supply network via a power adapter. The charging circuit generates a protection signal when changing from a first state that receives the power input signal to a second state that does not receive the power input signal. The control circuit controls the auxiliary battery to supply power to the load via a boosting circuit when receiving the protection signal, where a second output voltage outputted by the auxiliary battery is greater than or equal to a first output voltage outputted by the main battery.Type: ApplicationFiled: July 1, 2019Publication date: April 16, 2020Applicant: Acer IncorporatedInventors: Shuo-Jung Chou, Chuan-Jung Wang, Chih-Chiang Chen
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Publication number: 20200103572Abstract: A polarizer substrate and manufacturing method thereof are provided. The polarizer substrate includes a substrate, a plurality of polarizer structures, a plurality of barrier structures, and a passivation layer. The polarizer structures are disposed on the substrate. Each of the polarizer structures includes a wire-grid and a capping structure disposed on the wire-grid. The barrier structures are disposed on the capping structures and not contacting with the side walls of the wire-grids. A gap between two adjacent barrier structures is smaller than a gap between two adjacent wire-grids. The passivation layer is disposed on the barrier structures.Type: ApplicationFiled: May 14, 2019Publication date: April 2, 2020Applicant: Au Optronics CorporationInventors: Wei-Chi Wang, Chih-Chiang Chen, Tsai-Sheng Lo, Sheng-Kai Lin, Chia-Hsin Chung, Hui-Ku Chang, Ming-Jui Wang, Sheng-Ming Huang, Jen-Kuei Lu
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Publication number: 20200077926Abstract: The disclosure provides a smart strap and a method for defining human posture. The smart strap includes a first shoulder strap, a second shoulder strap, a chest strap, a camera, and a microcontroller. Two ends of the chest strap are respectively connected to the first shoulder strap and the second shoulder strap, and the chest strap includes a stiffness segment. The camera is disposed on a surface of the stiffness segment, faces a first direction, and captures object images of an object on the first direction. The microcontroller receives the object images from the camera, detects a distance between the object and the camera based on the object images, and adjust a screen shown to a wearer of the smart strap according to the distance.Type: ApplicationFiled: December 4, 2018Publication date: March 12, 2020Applicant: Acer IncorporatedInventors: Jia-Yu Lin, Chih-Chiang Chen
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Patent number: 10564768Abstract: The present invention provides a touch panel, including a touch-sensing circuit, an ESD protection circuit, and a processor. The touch-sensing circuit is composed of a plurality of sensing pads for sensing at least one touching object and outputting a sensing signal. The ESD protection circuit is connected to the touch-sensing circuit, surrounds the touch sensing circuit, and generates a circuit-loading. The processor is coupled to the touch sensing circuit and the ESD protection circuit to receive the sensing signal and the circuit-loading, performs an action according to the sensing signal, and determines whether to generate a warning signal according to a circuit-load change.Type: GrantFiled: March 14, 2018Date of Patent: February 18, 2020Assignee: ACER INCORPORATEDInventors: Jia-Yu Lin, Chih-Chiang Chen
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Publication number: 20200026351Abstract: A hand gesture sensing system includes a glove, five bionic tendons, five optical sensors, and a micro controller unit. The five bionic tendons are disposed in five sheaths of the glove, respectively. The five optical sensors are disposed in the glove and configured to detect the displacement or the deformation of the five bionic tendons, thereby identifying a hand gesture of a user when wearing the glove.Type: ApplicationFiled: November 15, 2018Publication date: January 23, 2020Inventors: Jia-Yu Lin, Chih-Chiang Chen, Jin-Ting Kuo
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Publication number: 20200004345Abstract: A rotary input device includes a base, a cover, a column, one or more first magnets, one or more second magnets, a plurality of magnetic sensors, and a signal processing circuit. The cover includes a cap portion and a side wall vertically extending from the cap portion. The column surrounded by the side wall includes a first end for connecting to the base and a second end for connecting to the cover. The first magnet surrounds the column and is configured on the cover. The second magnet surrounds the first magnet and is configured on the base. The magnetic sensors are configured on a lateral surface of the column and coupled to the signal processing circuit.Type: ApplicationFiled: May 25, 2019Publication date: January 2, 2020Inventors: Tai JU, Chueh-Pin KO, Chih-Chiang CHEN
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Publication number: 20190391265Abstract: In a 3D sensing system, a light module includes one or multiple light sources, and one or multiple MEMS mirrors are disposed on a rotatable reflector plate for reflecting light provided by the one or multiple light sources, respectively. A camera is configured to record one or multiple light spots when the light provided by the one or multiple light sources is reflected on a target. A micro controller unit is configured to acquire the distance between the target and the rotatable reflector plate according to a pitch of two adjacent light spots among the one or multiple light spots.Type: ApplicationFiled: September 16, 2018Publication date: December 26, 2019Inventors: Jia-Yu Lin, Chih-Chiang Chen
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Publication number: 20190379377Abstract: A dial device includes a base, a cover, a column, a magnet, a magnetic sensor and a signal processing circuit. The cover includes a cap portion and a side wall vertically extending from the cap portion. The column surrounded by the wall includes a first end for connecting to the base and a second end for connecting to the cover. The magnet surrounds the column and is disposed on the base or the cover. The magnetic sensor is disposed on a side surface of the column and coupled to the signal processing circuit. When the cover rotates relative to the base, the magnet rotates around the magnetic sensor, and the magnetic field strengths sensed by the magnetic sensor vary. The signal processing circuit determines the relative rotation direction between the cover and the base according to the difference of the magnetic field strengths sensed by the magnetic sensor.Type: ApplicationFiled: December 31, 2018Publication date: December 12, 2019Inventors: Tai JU, Chueh-Pin KO, Chih-Chiang CHEN
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Patent number: 10505070Abstract: A micro device transfer equipment includes a convey platform and a transfer device. The convey platform is configured to carry a wafer and move the wafer towards a specific direction, wherein a plurality of micro devices are fabricated on the wafer. The transfer device includes a plurality of transfer heads each including a base arm, a first side arm and a second side arm. The first side arm and the second side arm are disposed on the base arm in a movable manner for clamping a corresponding micro device among the plurality of micro devices.Type: GrantFiled: April 9, 2018Date of Patent: December 10, 2019Assignee: ACER INCORPORATEDInventors: Jui-Chieh Hsiang, Chih-Chiang Chen
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Publication number: 20190371219Abstract: A Demura system includes a camera module, a distance detection module, a location calibration module and a processing circuit. The camera module is configured to capture images displayed on a non-planar screen during an image-capturing period. The distance detection module is configured to detect the distance between the camera module and the non-planar screen during a test period. The location calibration module is configured to carry the camera module and the distance detection module, adjust the angle of the distance detection module, adjust the angle of the camera module and adjust the location of the camera module. The processing circuit is configured to control the location calibration module according to the data acquired by the distance detection module during the test period so as to move the camera module to a predetermined location.Type: ApplicationFiled: August 9, 2018Publication date: December 5, 2019Inventors: Jia-Yu Lin, Chih-Chiang Chen
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Patent number: 10498444Abstract: An optical wireless communication system includes a display panel, a frame rate controller, a backlight module, and a timing controller. The display panel includes a glass substrate, and the frame rate controller is configured to modulate multiple frequencies. The timing controller is configured to drive different scan regions of the glass substrate using at least a first frequency and a second frequency among the multiple frequencies and/or drive different backlight regions of the backlight module using at least a third frequency and a fourth frequency among the multiple frequencies for transmitting optical data. The first frequency is different from the second frequency, the third frequency is different from the fourth frequency, the value of the second frequency is a multiple of the value of the first frequency, and the value of the fourth frequency is a multiple of the value of the third frequency.Type: GrantFiled: August 28, 2018Date of Patent: December 3, 2019Assignee: ACER INCORPORATEDInventors: Jui-Chieh Hsiang, Chih-Chiang Chen
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Patent number: 10496181Abstract: A gesture input device for interacting with a wearable object is provided. A plurality of magnetic generators are disposed on the wearable object. The gesture input device includes a plurality of magnetic sensors and a controller. The magnetic sensors are disposed on the wearable object. The magnetic sensors are configured to sense a plurality of magnetic signals provided by the magnetic generators, and generate a plurality of voltage signals according to the magnetic signals. The controller is coupled to the magnetic sensors and configured to receive the voltage signals. When the wearable object is worn on a user's hand and the user's hand is in different gestures, the voltage signals generated by the magnetic sensors correspondingly change. The controller determines that the gesture of the user's hand according to the voltage signals.Type: GrantFiled: June 20, 2018Date of Patent: December 3, 2019Assignee: Acer IncorporatedInventors: Jia-Yu Lin, Chih-Chiang Chen
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Publication number: 20190363790Abstract: An optical wireless communication system includes a display panel, a frame rate controller, a backlight module, and a timing controller. The display panel includes a glass substrate, and the frame rate controller is configured to modulate multiple frequencies. The timing controller is configured to drive different scan regions of the glass substrate using at least a first frequency and a second frequency among the multiple frequencies and/or drive different backlight regions of the backlight module using at least a third frequency and a fourth frequency among the multiple frequencies for transmitting optical data. The first frequency is different from the second frequency, the third frequency is different from the fourth frequency, the value of the second frequency is a multiple of the value of the first frequency, and the value of the fourth frequency is a multiple of the value of the third frequency.Type: ApplicationFiled: August 28, 2018Publication date: November 28, 2019Inventors: Jui-Chieh Hsiang, Chih-Chiang Chen
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Patent number: 10475850Abstract: A display device includes a substrate, and a first light-emitting diode element disposed over the substrate and having a first light-emitting path. The display device further includes a light-emitting angle changing layer disposed over the first light-emitting diode element. The display device further includes a second light-emitting diode element disposed over the substrate. The second light-emitting diode element is disposed at a position other than the region corresponding to the first light-emitting path. The first light-emitting diode element has a first light-emitting angle, the second light-emitting diode element has a second light-emitting angle, and the second light-emitting angle is greater than the first light-emitting angle.Type: GrantFiled: November 8, 2017Date of Patent: November 12, 2019Assignee: ACER INCORPORATEDInventors: Jui-Chieh Hsiang, Chih-Chiang Chen
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Publication number: 20190317607Abstract: A gesture input device for interacting with a wearable object is provided. A plurality of magnetic generators are disposed on the wearable object. The gesture input device includes a plurality of magnetic sensors and a controller. The magnetic sensors are disposed on the wearable object. The magnetic sensors are configured to sense a plurality of magnetic signals provided by the magnetic generators, and generate a plurality of voltage signals according to the magnetic signals. The controller is coupled to the magnetic sensors and configured to receive the voltage signals. When the wearable object is worn on a user's hand and the user's hand is in different gestures, the voltage signals generated by the magnetic sensors correspondingly change. The controller determines that the gesture of the user's hand according to the voltage signals.Type: ApplicationFiled: June 20, 2018Publication date: October 17, 2019Applicant: Acer IncorporatedInventors: Jia-Yu Lin, Chih-Chiang Chen
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Publication number: 20190310460Abstract: A 3D sensing system includes a light source, an MEMS scanning mirror, an MEMS controller, one or multiple sensors, and an MCU. The MEMS scanning mirror is arranged to reflect the light provided by the light source. The MEMS controller is configured to control the angle of the MEMS scanning mirror in order to scan a surface. The one or multiple sensors are used to record the time when detecting the light reflected by the MEMS scanning mirror. The MCU is configured to calculate the location of the one or multiple sensors based on the recorded time by the one or multiple sensors.Type: ApplicationFiled: June 14, 2018Publication date: October 10, 2019Inventors: Jia-Yu Lin, Chih-Chiang Chen
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Patent number: 10437352Abstract: An active stylus and a detection method thereof are provided. The active stylus includes a first optical distance measurement circuit, a second optical distance measurement circuit and a signal processing circuit. The first optical distance measurement circuit is arranged at/on the side of the active stylus to measure a first distance between the active stylus and a target surface. The second optical distance measurement circuit is arranged at/on the other side of the active stylus to measure a second distance between the active stylus and the target surface. By using the first distance and the second distance, the signal processing circuit calculates an inclination angle of the active stylus relative to the target surface, and/or detects the rotation direction of the active stylus with the long axis direction as the rotation axis.Type: GrantFiled: November 6, 2017Date of Patent: October 8, 2019Assignee: Acer IncorporatedInventors: Tai Ju, Chih-Chiang Chen, Chueh-Pin Ko