Patents Assigned to E Ink Holding Inc.
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Patent number: 11575072Abstract: A display device includes a pixel array, at least one flexible substrate, and at least one optical blocking layer. The flexible substrate is located below the pixel array. The optical blocking layer is located between the flexible substrate and the pixel array. The optical blocking layer includes a first sub-layer and a second sub-layer. The first sub-layer is located between the second sub-layer and the flexible substrate, and a refractive index of the first sub-layer is different from a refractive index of the second sub-layer.Type: GrantFiled: January 15, 2021Date of Patent: February 7, 2023Assignee: E Ink Holdings Inc.Inventor: Chien-Hsing Chang
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Patent number: 11575539Abstract: The present invention discloses an identification number numbering method and a multipoint communication system. The identification number numbering method includes the following steps: sending an identification number packet to a multipoint communication bus by a master device; receiving the identification number packet via the multipoint communication bus, and temporarily storing an identification number according to the identification number packet by a first slave device; changing a voltage level of a master device control output pin of the master device; and when the first slave device determines that a voltage level of a first control input pin coupled to the master device control output pin is correspondingly changed, updating a first slave device identification number of the first slave device according to the identification number.Type: GrantFiled: July 2, 2020Date of Patent: February 7, 2023Assignee: E Ink Holdings Inc.Inventors: Yi-Jhou Shen, Zhone-Yang Wu
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Publication number: 20230021750Abstract: A radio frequency rectifier circuit including a rectifier circuit and a controller circuit is provided. The rectifier circuit receives a radio frequency signal and converts the radio frequency signal into a direct-current voltage serving as an output voltage. The rectifier circuit includes multiple power stages and multiple switch circuits. Each of the switch circuits is coupled between two of the power stages. The controller circuit is coupled to the rectifier circuit. The controller circuit outputs a control signal to control a conduction number of the switch circuits according to a value of the output voltage.Type: ApplicationFiled: May 20, 2022Publication date: January 26, 2023Applicant: E Ink Holdings Inc.Inventors: Zi-Yu Zeng, Tzu-Hsien Yang, Chong-Sin Huang, Zheng-Lun Huang, Ke-Horng Chen, Pin-Cheng Chiu, Chuen-Jen Liu, Chi-Mao Hung
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Patent number: 11561448Abstract: A front plate laminate structure includes a display medium layer, a top adhesive layer, a transparent substrate, a transparent conductive film, and a color filter layer. The top adhesive layer is located on the display medium layer. The transparent substrate is located on the top adhesive layer. The transparent conductive film is located between the transparent substrate and the top adhesive layer. The transparent conductive film includes a bottom surface facing the top adhesive layer. The color filter layer is located between the transparent substrate and the display medium layer.Type: GrantFiled: June 23, 2021Date of Patent: January 24, 2023Assignee: E Ink Holdings Inc.Inventors: Jau-Min Ding, Po-Yuan Lo, Sheng-Long Lin, Ian French
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Patent number: 11557359Abstract: A shift register and a gate driver circuit are provided. The shift register includes an input unit, an output unit, an electrostatic discharge unit and a reset unit. The input unit provides an input signal. The output unit is coupled to the input unit and a gate output terminal. The output unit outputs an output signal through the gate output terminal according to the input signal. The electrostatic discharge unit is coupled to the output unit. After the gate output terminal outputs the output signal, the electrostatic discharge unit pulls down a voltage of the gate output terminal according to a low gate voltage. The reset unit is coupled to the input unit and the output unit. After the electrostatic discharge unit pulls down the voltage of the gate output terminal, the reset unit resets a voltage of a bootstrap node.Type: GrantFiled: November 7, 2019Date of Patent: January 17, 2023Assignee: E Ink Holdings Inc.Inventors: Shyh-Feng Chen, Wen-Yu Kuo
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Patent number: 11555951Abstract: A display device includes a cover structure, a light guide plate, and a display panel. The cover structure includes an anti-glare layer, a light blocking frame, and an adhesive layer. The anti-glare layer has a display region and an non-display region. The light blocking frame surrounds a receiving space. An orthogonal projection of the light blocking frame on the anti-glare layer is located within the non-display region. An adhesive layer is located in the receiving space of the light blocking frame. The light guide plate is located on the surface of the adhesive layer facing away from the anti-glare layer. The display panel is adjacent to the light guide plate.Type: GrantFiled: June 17, 2020Date of Patent: January 17, 2023Assignee: E Ink Holdings Inc.Inventors: Chih-Cheng Ko, Yun-Nan Hsieh
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Patent number: 11551597Abstract: An electronic device including a substrate, a plurality of first signal lines, and a plurality of second signal lines is provided. The first signal lines are disposed on the substrate. Each of the first signal lines includes a first intersecting section and a first extending section. The first intersecting section each has a constant extending direction. The first intersecting section is connected to the first extending section, while the first intersecting section and the first extending section have different extending directions. The second signal lines are disposed on the substrate. Each of the second signal lines includes a second intersecting section. The second intersecting section each has a constant extending direction. The second signal lines intersect with the first signal lines to form a plurality of intersections on each of the first signal lines, and the intersections are located on the first intersecting sections.Type: GrantFiled: March 15, 2021Date of Patent: January 10, 2023Assignee: E Ink Holdings Inc.Inventors: Chia-Chi Chang, Chih-Chun Chen, Chi-Ming Wu, Yi-Ching Wang, Jia-Hung Chen, Shu-Fen Tsai
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Patent number: 11551626Abstract: An electronic paper display device and an operation method thereof are provided. The electronic paper display device includes an electronic paper display panel and a timing controller. The timing controller includes a first image buffer memory, a second image buffer memory, and an update buffer memory. The timing controller receives a touch track data. The first image buffer memory and the second image buffer memory are a ping-pong buffer architecture, and receive a video stream in staggered timing. The second image buffer memory receives the touch track data and simultaneously updates a current display screen data stored in the update buffer memory when the first image buffer memory receives the video stream to update the current display screen data into the update buffer memory. The timing controller drives the electronic paper display panel according to the current display screen data.Type: GrantFiled: January 24, 2022Date of Patent: January 10, 2023Assignee: E Ink Holdings Inc.Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Cheng-Hsin Chu, Chi-Mao Hung
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Patent number: 11537225Abstract: A functional module is applied in a front light module of a display device. The functional module includes a composite cover structure having a first plate and a second plate and a reflective display panel. The second plate is located between the first plate and the reflective display panel. At least one medium layer is located between the first plate of the composite cover structure and the reflective display panel. The refractive index of the medium layer is greater than or equal to 1 and is smaller than 1.474.Type: GrantFiled: February 8, 2021Date of Patent: December 27, 2022Assignee: E Ink Holdings Inc.Inventors: Chao-Jen Wang, Jen-Pin Yu
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Publication number: 20220390793Abstract: A light source module and a display device are provided. The light source module includes a light-emitting element, a light-guiding plate, and a filter. The light-emitting element includes a light-emitting surface. The light-guiding plate includes a light-incident surface, and the light guide plate is disposed such that the light-incident surface faces the light-emitting surface. The filter is disposed between the light-emitting surface and the light-incident surface, and a center wavelength of a reflection band of the filter falls in a range of 570 nm to 590 nm. The light-emitting element emits a first light having a first color temperature from the light-emitting surface. The first light is filtered into the second light having a second color temperature after it passes through the filter. The light-incident surface of the light-guiding plate receives the second light. The first color temperature is lower than the second color temperature.Type: ApplicationFiled: March 14, 2022Publication date: December 8, 2022Applicant: E Ink Holdings Inc.Inventors: Jen-Yuan Chi, Yu-Nan Pao
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Patent number: 11508324Abstract: An E-paper display device including an E-paper display panel and a display driver is provided. The E-paper display panel displays an image. The image includes a first frame and a second frame. The display driver is coupled to the E-paper display panel. The display driver drives the E-paper display panel to display the image. The display driver drives a first pixel group of the E-paper display panel in a first polarity and drives a second pixel group of the E-paper display panel in a second polarity to display the first frame during a first frame period. The first pixel group and the second pixel group are arranged in interlacing. The display driver drives the second pixel group of the E-paper display panel in the first polarity to display the second frame during a second frame period. Moreover, a method for driving an E-paper display panel is also provided.Type: GrantFiled: June 11, 2021Date of Patent: November 22, 2022Assignee: E Ink Holdings Inc.Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung
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Patent number: 11501725Abstract: An e-paper display device, including a driver circuit. The driver circuit is coupled to the e-paper display panel and drives the e-paper display panel to display one or more line segments, which include a current display line segment and a target display line segment. During a frame period, the driver circuit pre-drives a display area to display a first color according to the current display line segment. At least part of the target display line segment is located in the display area. During a next frame period, the driver circuit drives a part of the display area excluding the target display line segment to display a second color and a part of the display area including the target display line segment to display the first color according to the target display line segment. A method for driving an e-paper display panel.Type: GrantFiled: July 8, 2021Date of Patent: November 15, 2022Assignee: E Ink Holdings Inc.Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Chi-Mao Hung
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Patent number: 11500148Abstract: The holder is suitable for a display apparatus, where the display apparatus includes a light guide plate and a display panel. The light guide plate includes a light emitting portion and a curved portion connected to the light emitting portion, and the display panel has a bottom surface and a side surface connected to the bottom surface. At least one part of the holder is attached to the side surface of the display panel, and the holder is wrapped with the curved portion of the light guide plate.Type: GrantFiled: August 26, 2021Date of Patent: November 15, 2022Assignee: E Ink Holdings Inc.Inventor: Yu-Chuan Wen
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Patent number: 11501741Abstract: An e-paper display device including an e-paper display panel, a graphics library and a display controller is provided. The display controller is coupled to the e-paper display panel. The display controller is configured to receive a line segment input signal and call the graphics library, and then drive, using a set of signal waveforms, the e-paper display panel to display a line segment. The set of signal waveforms is generated according to the line segment input signal and the graphics library. The line segment includes at least one gray level. In addition, a method for driving an e-paper display device is also provided.Type: GrantFiled: November 17, 2020Date of Patent: November 15, 2022Assignee: E Ink Holdings Inc.Inventor: Wei-Han Yen
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Patent number: 11500261Abstract: An electrophoretic display and a driving method thereof are provided. The electrophoretic display includes a display panel and a driving circuit. The display panel includes an electrophoretic unit and a driving substrate. The electrophoretic unit includes a plurality of electrophoretic particles. The driving substrate is disposed below the electrophoretic unit. The driving circuit is coupled to the driving substrate. The driving circuit sequentially provides a first reset signal and a second reset signal to the driving substrate during a reset period to reset the plurality of electrophoretic particles. The first reset signal sequentially includes a first sub-balanced signal and a first sub-mixed signal. The second reset signal sequentially includes a second sub-balanced signal and a second sub-mixed signal.Type: GrantFiled: March 12, 2020Date of Patent: November 15, 2022Assignee: E Ink Holdings Inc.Inventors: Hsin-I Wu, Chien-Hung Chen, Chen-Kai Chiu, Chih-Yu Cheng
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Patent number: 11495185Abstract: The present disclosure relates to a voltage regulating circuit, including an impedance circuit, a control unit and a power supply circuit. The impedance circuit has a first node and a second node, wherein the second node is electrically coupled to a load. The control unit is electrically coupled to the first node and configured to control a first voltage value of the first node according to a control signal. An input terminal of the power supply circuit is electrically coupled to the second node. An output of the power supply circuit is electrically coupled to the load. The power supply circuit is configured d to output a control voltage to the load according to a second voltage value of the second node.Type: GrantFiled: July 29, 2021Date of Patent: November 8, 2022Assignee: E Ink Holdings Inc.Inventors: Chuen-Jen Liu, Liang-Yu Yan
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Publication number: 20220319445Abstract: An electrophoretic display device, including an electrophoretic display panel and a display driving module, is provided. The display driving module is coupled to the electrophoretic display panel and is used for driving the electrophoretic display panel. The display driving module generates multiple first grayscale images according to multiple color pixel values of multiple color pixels corresponding to multiple colors of a color image. The display driving module captures multiple grayscale values of multiple locations of multiple first sub-pixels of the first grayscale images according to multiple locations of multiple mask sub-pixels corresponding to the colors in a mask image to generate multiple second grayscale images. The display driving module synthesizes the second grayscale images to generate a synthesized image. The display driving module drives the electrophoretic display panel according to the synthesized image.Type: ApplicationFiled: January 21, 2022Publication date: October 6, 2022Applicant: E Ink Holdings Inc.Inventors: Ian French, Po-Yuan Lo, Xian-Teng Chung
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Publication number: 20220317348Abstract: A color filter module is provided. The color filter module is arranged on a display panel. The color filter module includes a transparent substrate and a color resist layer. The transparent substrate includes multiple sub-pixel regions arranged in an array. The color resist layer is arranged on the transparent substrate. The color resist layer includes multiple color resist units. The color resist units are respectively arranged across at least two sub-pixel regions, and the color resist units form a staggered array on the transparent substrate.Type: ApplicationFiled: January 19, 2022Publication date: October 6, 2022Applicant: E Ink Holdings Inc.Inventors: Ian French, Po-Yuan Lo, Liang-Yu Lin
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Patent number: 11460625Abstract: A light guide module suitable for being disposed on a reflective display panel includes a light guide plate and a light-shielding part. The light guide plate has a first surface, a second surface opposite to the first surface, and an optical structure formed in the first surface. The first surface has a display area and an edge area surrounding the display area, and the optical structure is distributed in the display area. The light-shielding part is disposed on the first surface and covers the edge area, in which the light-shielding part has an opening exposing the display area.Type: GrantFiled: July 7, 2021Date of Patent: October 4, 2022Assignee: E Ink Holdings Inc.Inventors: Hsin-Tao Huang, Yu-Chuan Wen
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Publication number: 20220299686Abstract: A color filter module is provided. The color filter module is disposed on an electrophoretic display panel. The color filter module includes a transparent substrate and a color resist layer. The transparent substrate includes a plurality of pixel regions arranged in an array. Each of the plurality of pixel regions includes a plurality of sub-pixel regions. The color resist layer is disposed on the transparent substrate. Among the plurality of sub-pixel regions of the transparent substrate, a first sub-pixel region and a second sub-pixel region that correspond to a same color and are adjacent to each other are provided with a plurality of color resist units of the same color of the color resist layer. The plurality of color resist units are arranged in an array and arranged in a discontinuous pattern.Type: ApplicationFiled: January 13, 2022Publication date: September 22, 2022Applicant: E Ink Holdings Inc.Inventors: Ian French, Po-Yuan Lo, Liang-Yu Lin