Patents Assigned to EverDisplay Optronics (Shanghai) Limited
  • Patent number: 9985087
    Abstract: The present patent application is related to the field of display devices, and provides a display device with panel test circuit the attenuation of data voltage signal could be reduced in the programs of testing pixel array. The display device comprises a plurality of first and second type of bonding pads located on the substrate and around periphery of the pixel array, and the panel test circuit has transistors, the transistors are disposed on the substrate and around periphery of the pixel array, a plurality of data lines of the pixel array are electrically connected with the second type of bonding pads one-to-one, and data detection signal applied to the first type of bonding pads is transmitted to the second type of bonding pads through the panel test circuit.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 29, 2018
    Assignee: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: Jie Ni, Sisi Zhou
  • Patent number: 9984622
    Abstract: A pixel driving circuit includes: a switching transistor, having a first end connected with a data signal, and a control end connected with a first scan signal; a compensation transistor, having a first end connected with a second end of the switching transistor; a storage capacitor, having a first end connected with a second end and a control end of the compensation transistor, and a second end connected with a driving voltage; a driving transistor, having a first end connected with the driving voltage, and a control end connected with the first end of the storage capacitor; and an isolation transistor, having a first end connected with a second end of the driving transistor, a second end connected with the OLED, and a control end connected with a light emitting control signal, wherein the compensation transistor has a threshold voltage the same as that of the driving transistor.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 29, 2018
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Yinghsiang Tseng
  • Patent number: 9978978
    Abstract: The disclosure relates to the field of OLED display technology, more particularly, to an OLED display panel and a manufacturing method thereof, during the manufacturing process of the OLED display panel, by forming a low gray color shift adjustment layer between the anode and the OLED device layer, and/or between the OLED device layer and the cathode, so as to solve the color shift problem under low gray-scale by adjusting thickness or doping concentration of the low gray color shift adjustment layer, and improve the accuracy of emitting color of the OLED panel.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 22, 2018
    Assignee: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: Xin Mou, Chung Che Tsou, Hsin Chih Lin, Bin Zhang
  • Patent number: 9977557
    Abstract: This disclosure is related to the field of semiconductor technology, more specifically, to a flexible touch sensor and display device including the flexible touch sensor. The flexible touch sensor is formed through the construction of chain structure formed by flexible conductors and rigid conductors, that is, based on the principle of chains, connecting the rigid conductors and flexible conductors in an interval way, to form a chain structure, and making the manufactured sensor and the display device reach the purpose of being flexible, and the problem caused by the immature of the development of flexible materials that the flexible sensor can't be mass-produced can be effectively solved.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: May 22, 2018
    Assignee: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: Su Weisheng, Huang Tienwang
  • Patent number: 9947272
    Abstract: An OLED display device includes an array of pixel units. Each pixel unit includes a pixel driving circuit and an OLED. The pixel units in each column is connected to a data line. The pixel units in each row is connected to a first scan line for selecting and activating pixel units to receive a data voltage provided by the data line. The pixel units in each row is connected to a second scan line for selecting and resetting pixel units. An emission control line connected to the pixel units in each odd-numbered row is connected to a first clock signal end. An emission control line connected to the pixel units in each even-numbered row is connected to a second clock signal end. Two emission control signals outputted by the first and second clock signal ends have the same period and have a stable phase difference between 90° and 180°.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 17, 2018
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Xingyu Zhou
  • Publication number: 20180090065
    Abstract: A transmitting control line driver, an OLED panel having same, and a display device. The transmitting control line driver comprises multiple stages of transmitting control line driver units. A first time sequence signal transmission line (Ck1) is coupled to first input ends (CKE1) in odd stages of transmitting control line driver units and second input ends (CKE2) in even stages of transmitting control line driver units. A second time sequence signal transmission line (CK2) is coupled to second input ends (CKE2) in the odd stages of transmitting control line driver units and first input ends (CKE1) in the even stages of transmitting control line driver units. A signal output end (out) of each stage of transmitting control line driver unit is coupled to a third input end (in) of a subsequent stage of transmitting control line driver unit.
    Type: Application
    Filed: March 31, 2015
    Publication date: March 29, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: Ying-Hsiang TSENG, Lina XIAO
  • Publication number: 20180033370
    Abstract: The present disclosure relates to a pixel circuit and a method for driving the same. The pixel circuit includes: first and second transistors, control terminals of which receive a first scan signal; third and fourth transistors, control terminals of which receive a second scan signal; a fifth transistor, a control terminal of which is electrically coupled to a capacitor; sixth, seventh and eighth transistors, control terminals of which receive a control signal; and a light emitting diode. The present disclosure can reduce or reversely compensate the current leakage, and thus the holding capability of the capacitor can be enhanced. Consequently, the image flicker and thereby the image reliability can be improved.
    Type: Application
    Filed: March 15, 2017
    Publication date: February 1, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Shi-Song ZHENG
  • Publication number: 20180033999
    Abstract: The present disclosure provides a flexible organic light emitting device and a method of manufacturing the same. The flexible organic light emitting device includes: a flexible array substrate; an organic light emitting device layer, formed on a side of the flexible array substrate; an aluminum oxide layer, formed on a side of the organic light emitting device layer away from the flexible array substrate; at least one composite water and oxygen barrier layer, formed on a side of the aluminum oxide layer away from the organic light emitting device layer and including a mica foil and a polymer layer, the mica foil being provided on a side of the polymer layer toward the aluminum oxide layer; and a polarizing layer with a touch electrode, formed on a side of the composite water and oxygen barrier layer away from the aluminum oxide layer.
    Type: Application
    Filed: May 30, 2017
    Publication date: February 1, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Baocai ZHAI
  • Publication number: 20180026232
    Abstract: The present invention relates to a thin-film package for an organic light-emitting diode, an organic light-emitting diode using the thin-film package, and an organic light-emitting display. The thin-film package includes at least one inorganic film layer and at least one organic film layer, the inorganic film layer and the organic film layer being alternately stacked; the inorganic film layer is made of a material selected from any one of poly(silicon nitride), poly(silicon oxide), poly(silicon carbonitride), poly(silicon carbooxide), poly(silicon carbonitride) and poly(silicon carbonitrideoxide), or any combination thereof; and the organic film layer is made of a material selected from any one of acrolein-based polymer, silicon-based polymer and epoxy-based polymer, or any combination thereof.
    Type: Application
    Filed: March 10, 2017
    Publication date: January 25, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Ling XIAO
  • Publication number: 20180026117
    Abstract: The present disclosure provides a display device, including: a gate line and a data line; a pixel array; a gate driver, configured to provide a gate signal to the gate line; a test circuit, coupled to a first input line and a second input line respectively; and a data driver, including a first power line, a first transistor and a third input line, wherein the first power line is configured to supply an initial voltage to the pixel array, the first power line is coupled to the first input line via the first transistor, a gate of the first transistor is coupled to the third input line, the third input line is configured to transmit a pre-charge control signal, and the pixel array is configured to supply the initial voltage to each pixel in the pixel array based on the pre-charge control signal.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 25, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Nana XIONG
  • Publication number: 20180026219
    Abstract: The present disclosure relates to an organic element, a display panel and a display device. The organic light emitting element includes: a first electrode; a hole layer disposed on the first electrode; a light emitting layer including a first light emitting portion, a second light emitting portion and a third light emitting portion; an electron layer on the light emitting layer; and a second electrode disposed on the electron layer. An energy level difference between the hole layer and the first light emitting portion and/or an energy level difference between the first light emitting portion and the electron layer is greater than or equal to a first threshold, so that a turn-on voltage difference between the first light emitting portion and the second light emitting portion is smaller than a second threshold.
    Type: Application
    Filed: March 15, 2017
    Publication date: January 25, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: Yanhu LI, Xin MOU
  • Publication number: 20180011562
    Abstract: A touch display panel and a method for manufacturing the same are provided. The touch display panel includes a flexible substrate, a light emitting device, an encapsulating film and a touch sensing device. The light emitting device is provided on the flexible substrate. The encapsulation film covers the light emitting device and encapsulates the light emitting device in a sealed space formed by the flexible substrate and the encapsulating film. The touch sensing device is provided on a portion of an outer surface of the encapsulating film and configured to sense an external touch operation. In the present disclosure, the touch sensing device is formed directly on the portion of the outer surface of the encapsulating film, such that the touch sensing device is fixed on the portion of the outer surface of the encapsulating film.
    Type: Application
    Filed: February 10, 2017
    Publication date: January 11, 2018
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: YU-CHEN WU, Wei Sheng SU, Fengchao YU, Jr-Hong CHEN
  • Publication number: 20170371366
    Abstract: The present disclosure provides a low dropout linear voltage regulator, including: an amplifier, configured to have a first input end receiving a reference voltage, a second input end configured to receive a feedback voltage, and an output end connected to a first node; an output transistor, having a control end connected to the first node, a first end connected to a first power source potential, and a second end connected to a second node and configured to provide an output voltage; a feedback circuit, connected to the second node and configured to provide the feedback voltage according to the output voltage; and a compensation circuit, comprising at least one of a first compensation amplifier, a second compensation amplifier and a first variable current source. The compensation circuit detects and suppresses a voltage transient generated when a load switching from light to heavy occurs at the second node.
    Type: Application
    Filed: November 23, 2016
    Publication date: December 28, 2017
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: CHE-CHENG LIU
  • Patent number: 9846798
    Abstract: A full-screen fingerprint identification method includes disposing a wire mesh on a touch panel. The wire mesh includes a plurality of metal wires. The metal wires are connected to a switch unit. A fingerprint identification area is appointed on the touch panel, and a portion of the switch unit associated with the metal wires in the fingerprint identification area is turned on to make the metal wires in the fingerprint identification area conductive for fingerprint identification. A full-screen fingerprint identification device includes a touch panel and a wire mesh disposed on the touch panel. The wire mesh includes a plurality of metal wires connected to a switch unit. The touch panel includes a fingerprint identification area. A portion of the switch unit associated with the metal wires in the fingerprint identification area can be turned on to make the metal wires in the fingerprint identification area conductive for fingerprint identification.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: December 19, 2017
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventors: Weisheng Su, PingHsu Lai, HsiaoYi Lin
  • Publication number: 20170358259
    Abstract: A pixel circuit includes: a light emitting component, a first transistor (MT2) including a gate coupled to a first node (N1), a first terminal coupled to a first pixel power supply (VELVDD) and a second terminal coupled to a second node (N3), and the pixel current flows from the first terminal to the second terminal in response to a voltage at the gate; a second transistor (MT1), for selectively providing a data signal to a third node (N2); a third transistor (MT3); a fourth transistor (MT6), for selectively providing a compensation voltage to the first transistor (MT2); a fifth transistor (MT5), for selectively providing an initialization voltage to the third node (N2); a sixth transistor (MT4), for selectively providing the pixel current to the light emitting component; and a capacitor (C1), located between the first node (N1) and the third node (N2).
    Type: Application
    Filed: October 27, 2014
    Publication date: December 14, 2017
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Ming Ta CHUNG
  • Publication number: 20170358261
    Abstract: The present disclosure relates to a display device, a pixel driving circuit and a driving method thereof. The OLED pixel driving circuit includes an electroluminescent devices, first to seventh switching elements and a storage capacitor. The sixth switching element has a first terminal coupled to a first node and a second terminal coupled to a third node, the seventh switching element has a first terminal receiving an initialization voltage, and a second terminal coupled to the first node.
    Type: Application
    Filed: December 20, 2016
    Publication date: December 14, 2017
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventor: Xingyu ZHOU
  • Patent number: 9842533
    Abstract: The present disclosure provides a display device, a device and a method for gamma compensation. The device for gamma compensation includes: a flexure recording module, provided in a flexible display panel, and configured to acquire a flexure count of the flexible display panel; a parameter inquiring module, connected to the flexure recording module, and configured to inquire a corresponding gamma correction value from a comparison table involving a correspondence between flexure counts of the flexible display panel and gamma correction values according to the flexure count of the flexible display panel; and a voltage output module, connected to the parameter inquiring module, and configured to provide a gamma compensation voltage to the flexible display panel according to the gamma correction value.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: December 12, 2017
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventors: Jiahao Lu, Pengtao Kang, Sisi Zhou
  • Patent number: 9842543
    Abstract: An organic light-emitting diode (OLED) pixel compensation circuit includes a driving module, a compensation module, an OLED lighting module, and a precharging module. The compensation module is connected to the driving module and is configured to receive a voltage of an external first power for compensating a turn-on voltage of the driving module. The precharging module is connected to the OLED lighting module and is configured to receive a voltage of an external second power for precharging the OLED lighting module. The driving module is connected to the OLED lighting module and is configured to remain on under compensation by the compensation module for receiving the voltage of the external first power to obtain a driving voltage for driving the OLED lighting module to emit light, thereby driving the OLED lighting module to emit light.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: December 12, 2017
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Xingyu Zhou
  • Patent number: 9839095
    Abstract: A pixel driving circuit includes a light-emitting working unit, a driving unit, a data signal input, a initial voltage input, a driving power input and a plurality of control level inputs. The driving unit includes a voltage storage element and a driving element. The driving element includes a first electrode, a second electrode and a control terminal. One end of the voltage storage element is connected to the control terminal of the driving element. The first electrode of the driving element forms a first input port of the input port of the driving unit. The pixel circuit is capable of improving the display effect and improving the display life of AM-OLED.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: December 5, 2017
    Assignee: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: YongLiang Qin, Jr Hong Chen, Chu Wan Huang
  • Publication number: 20170345876
    Abstract: The present invention discloses a mobile terminal, comprising a bottom frame; a glass cover; a screen module covering the bottom frame; wherein the glass cover covers the screen module and two edges of both sides of the glass cover connect to the bottom frame; both the screen module and the glass cover have an arch opposite to the bottom frame; two edges of both sides of the screen module extend over both sides of the glass cover and are covered by the bottom frame. The beneficial effect of the above technical solution is: by utilizing the arch of the screen module and the glass cover opposite to the bottom frame, the front surface of the screen module and two sides of screen module do not have black edge, so that the display effect is excellent.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: Jr Hong Chen, Chien Er Huang, Xinye Pan, Huanyu Huang, Tsunglin Yang, Junjun Chen