Patents Assigned to Raydium Semiconductor Corporation
  • Patent number: 9830494
    Abstract: A capacitive fingerprint sensing apparatus including sensing electrodes, a scanning driver, a sensing driver and a processing module is disclosed. In a self-capacitive sensing mode, the scanning driver drives a pair of adjacent scanning lines among the scanning lines and the sensing driver performs self-capacitive sensing through at least one sensing line among the sensing lines to obtain a first fingerprint sensing signal. In a mutual-capacitive sensing mode, the scanning driver drives the pair of adjacent scanning lines and the sensing driver performs mutual-capacitive sensing through at least two adjacent sensing lines among the sensing lines to obtain a second fingerprint sensing signal. The processing module generates a first fingerprint pattern and a second fingerprint pattern according to the first fingerprint sensing signal and the second fingerprint sensing signal and combines the first fingerprint pattern and the second fingerprint pattern into a combined fingerprint pattern.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: November 28, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chang-Ching Chiang, Kun-Pei Lee
  • Patent number: 9746978
    Abstract: A capacitive touch panel is disclosed. The capacitive touch panel includes a laminated structure. The laminated structure includes a liquid crystal displaying module, a single-layer touch sensor, and a polarizing module. The single-layer touch sensor is disposed on the liquid crystal displaying module. The polarizing module is disposed on the single-layer touch sensor. The single-layer touch sensor includes a plurality of first electrodes and a plurality of second electrodes. The first electrodes and the second electrodes are configured in an asymmetric electrode arranging way, so that one of the first electrodes will be arranged corresponding to at least two of the second electrodes.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: August 29, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yi-Ying Lin, Kun-Pei Lee, Hsin-Wei Shieh
  • Patent number: 9705455
    Abstract: A random chopper control circuit is disclosed. The random chopper control circuit is coupled to an operational amplifier. The random chopper control circuit includes a random generator. The random generator is configured to generate a random chopper control signal and output the random chopper control signal to the operational amplifier to control an operation of the operational amplifier.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: July 11, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Chuan Huang, Wen-Tsung Lin
  • Patent number: 9696851
    Abstract: An on-cell capacitive touch panel is disclosed. Its laminated structure includes a LCD module, a touch sensing module, and a polarizing module. The touch sensing module is disposed on the LCD module. The polarizing module is disposed on the touch sensing module. The touch sensing module includes a touch sensor pattern having a single-layer ITO structure. The touch sensor pattern includes a first pattern unit and a second pattern unit which are the same and both have at least one first electrode, second electrode, and extending electrode. The first electrode is arranged along a first direction and the second electrode is arranged along a second direction. The first direction and second direction are vertical. The first electrode crosses the second electrode via a bridge structure. The extending electrode surrounds the first electrode and it is arranged along the first direction.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 4, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yi-Ying Lin, Kuan-Ming Lin, Hsin-Wei Shieh, Kun-Pei Lee
  • Patent number: 9692362
    Abstract: An amplifier circuit applied to a source driver of a display apparatus includes a first input terminal, a second input terminal, an operational amplifier, an output stage and an output terminal. The first input terminal receives a first input signal. The second input terminal receives a second input signal. The operational amplifier is coupled to the first input terminal and second input terminal and receives the first input signal and second input signal and outputs a first control signal and a second control signal respectively. The output stage includes a first BJT and a second BJT coupled in series between a first terminal and a second terminal. The first BJT and second BJT are coupled to the operational amplifier and receive the first control signal and second control signal respectively. The output terminal is coupled between the first BJT and second BJT and outputs an output signal.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: June 27, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yu-Chun Lin, Yung-Hsiang Yang
  • Patent number: 9660794
    Abstract: A bi-directional full-duplex lock system applied in a data transmission interface of a liquid crystal display is disclosed. The data transmission interface includes a transmitter and a receiver. The bi-directional full-duplex lock system includes a detection module and a control module. The detection module detects a transmitter link state of transmitter and a receiver link state of receiver respectively. The control module controls transmitter to transmit a lock signal to receiver, controls receiver to transmit the lock signal to transmitter, and controls one receiver to transmit the lock signal to another receiver. The lock signal relates to transmitter link state and receiver link state. When transmitter transmits the lock signal to receiver, a phase of the lock signal will be reversed for the receiver to detect whether its own frequency is correct.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: May 23, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventor: Da-Rong Huang
  • Patent number: 9612699
    Abstract: An on-cell capacitive touch panel is disclosed. Its laminated structure includes a LCD module, a touch sensing module, and a polarizing module. The touch sensing module is disposed on the LCD module. The polarizing module is disposed on the touch sensing module. The touch sensing module includes a touch sensor pattern having a single-layer ITO structure. The touch sensor pattern includes a first pattern unit and a second pattern unit which are the same and both have at least one first electrode, second electrode, and extending electrode. The first electrode is arranged along a first direction and the second electrode is arranged along a second direction. The first direction and second direction are vertical. The first electrode crosses the second electrode via a bridge structure. The extending electrode surrounds the first electrode and it is arranged along the first direction.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 4, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yi-Ying Lin, Kuan-Ming Lin, Hsin-Wei Shieh, Kun-Pei Lee
  • Patent number: 9589883
    Abstract: A double-sided chip on film (COF) packaging structure and a manufacturing method thereof are disclosed. The double-sided COF structure includes a metal layer, a first insulating layer, a second insulating layer, a chip, and an encapsulant. The first insulating layer and second insulating layer are disposed on a first surface and a second surface of metal layer respectively. The first surface and second surface are opposite. The first insulating layer includes a first part and a second part separated from each other. An accommodating space is existed between the first part and the second part and a part of the first surface is exposed. The chip is accommodated in the accommodating space and disposed on the exposed part of the first surface. The encapsulant fills the spaces between the chip and the first part and between the chip and the second part to form the double-sided COF packaging structure.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: March 7, 2017
    Assignee: Raydium Semiconductor Corporation
    Inventor: Ching-Yung Chen
  • Patent number: 9530338
    Abstract: A driving circuit includes at least one reference voltage source, at least one offset unit, and at least one buffer module. The at least one reference voltage source generates a reference voltage. The at least one offset unit generates an offset voltage, wherein the offset voltage and the reference voltage form a judging voltage range. The at least one buffer module has a first input end, a second input end, and an output end, wherein the first input end receives an analog voltage; the at least one reference voltage source is connected with the second input end; the at least one buffer module, according as whether the analog voltage is within the judging voltage range, outputs a pass logic signal or a fail logic signal at the output end. Particularly, the buffer module has Built-In-Self-Test (BIST) function and can increase test efficiency and voltage accuracy.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: December 27, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Chuan Huang, Ko-Yang Tso
  • Patent number: 9530378
    Abstract: A driving circuit, for driving a display panel of a display apparatus, includes a control module, a gamma-voltage generation module, and a conversion outputting module. The control module provides a first control voltage and a second control voltage which are adjustable. The first control voltage is higher than the second control voltage. The gamma-voltage generation module generates a gamma voltage according to the first control voltage and the second control voltage. The conversion outputting module converts the gamma voltage into a driving voltage and outputs it to the display panel. When the display panel is over-loaded, the control module adjusts the first control voltage and/or the second control voltage to change the gamma voltage generated by the gamma-voltage generation module, and the driving voltage outputted by the conversion outputting module is changed accordingly to adjust a curve of a panel voltage on the display panel versus time.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: December 27, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventor: Cheng-Chin Liu
  • Patent number: 9529452
    Abstract: A touch input device includes a touch end, a sensing module, and a receiving module. The sensing module includes a sensing unit and a signal operation unit. The sensing unit detects a relative angle between the touch end and a display touch surface to generate a motion signal. The signal operation unit is coupled with the sensing unit and generates a result signal according to the motion signal. The receiving module includes a receiving end and a demodulator unit. The receiving end receives the result signal; the demodulator is coupled with the receiving end, wherein the receiving end transmits the result signal to the demodulator unit, and the demodulator unit generates a function signal according to the result signal.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 27, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Te-Chang Lin, Chien-Kuo Wang, Chia-Hsiu Lin, Ya-Ling Lu, Yi-Ming Chen, Wei-Yuan Cheng, Yu-Sheng Yeh
  • Patent number: 9495933
    Abstract: An analog data transmitter applied in a LCD apparatus includes an output pad, a channel operational amplifier, an initial switch, an auxiliary switch module, and a detection unit. The detection unit selectively starts a first switch unit or a second switch unit of the auxiliary switch module according to a pulse width modulation corresponding to a data conversion amplitude of an output data signal outputted from the output pad. During a period of the first switch unit or the second switch unit operating from a first time to a second time, transistors in an output stage of the channel operational amplifier operate in a linear region of smaller resistance instead of a saturation region of larger resistance, and the initial switch is turned-off during the period and not started until the second time. The length of the period corresponds to the pulse width modulation.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 15, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventor: Po-Cheng Lin
  • Patent number: 9477340
    Abstract: An on-cell capacitive touch panel is disclosed. The capacitive touch panel includes a laminated structure. The laminated structure includes a LCD module, a touch sensing module, and a polarizing module. The touch sensing module is disposed on the LCD module. The polarizing module is disposed on the touch sensing module. The touch sensing module includes a touch sensor pattern. The touch sensor pattern has a single-layer ITO structure and includes at least one first electrode and at least one second electrode. The at least one first electrode is arranged along a first direction and the at least one second electrode is arranged along a second direction. The first direction and the second direction are two mutually perpendicular directions.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: October 25, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Kuan-Ming Lin, Yi-Ying Lin, Hsin-Wei Shieh, Kun-Pei Lee
  • Patent number: 9473143
    Abstract: A driving circuit includes an activating end, an operation switch, a voltage control end, and an output switch. The activating end selectively outputs a first voltage control signal and a second voltage control signal. The operation switch is turned off according to the first voltage control signal to generate a low voltage control signal or is turned on according to the second voltage control signal to generate a high voltage control signal. The voltage control end generates a low voltage according to the low voltage control signal or generates a bias voltage according to the high voltage control signal. The output switch is turned off according to the low voltage to determine that an output voltage is the same as the low voltage, or is turned on according to the bias voltage to determine that the output voltage is the same as the high voltage.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 18, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventor: Kuen-Shan Chang
  • Patent number: 9448269
    Abstract: An electronic detecting circuit includes at least one electrostatic protective module, at least one detection module, and a microprocessor controller module. The at least one detection module is respectively connected to the at least one electrostatic protective module, and the at least one detection module generates a driving record signal according to a driving state of the at least one electrostatic protective module. The microprocessor controller module is coupled with the at least one detection module, wherein the microprocessor controller module records the driving record signal when the at least one detection module transmits the driving record signal to the microprocessor controller module.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 20, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventor: Cheng-Chin Liu
  • Patent number: 9449570
    Abstract: A driving circuit for connecting a display module is provided. The driving circuit includes a polarity control module, an output control module, and a detecting module. The polarity control module provides a polarity control signal. The output control module is connected with the polarity control module and provides a plurality of output control signals. The detecting module is coupled with the polarity control module and the output control module, wherein the detecting module detects the polarity control signal and selectively controls the output control module to operate in at least one of a first control mode and a second control mode to control the output control signals.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 20, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Chuan Huang, Chien-Ming Chen
  • Patent number: 9442617
    Abstract: A multi-channel sensing system and operating method thereof are disclosed. The multi-channel sensing system includes a transceiver, emitting electrodes, and a receiving electrode. The transceiver includes a spreading code generator and a modulator. The spreading code generator generates a non-orthogonal spreading code through an invertible matrix and then the modulator modulates a data signal to spreading signals according to the non-orthogonal spreading code. The emitting electrodes, corresponding to sensing channels respectively, emit the spreading signals at the same time to pass through corresponding sensing channels respectively, and the spreading signals are converted into coupled signals by capacitive coupling. The receiving electrode receives the coupled signals and generates a received signal according to the coupled signals.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: September 13, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Cheng-Rung Tsai, An-Yeu Wu, Shih-Lun Huang, Chih Yuan, Hsu-Ming Chuang
  • Patent number: 9425754
    Abstract: A repair operational amplifier circuit including a repair operational amplifier and a slew rate enhancing module. The repair operational amplifier includes an input terminal and an output terminal. The input terminal is used to receive an input signal. The output terminal is used to output an output signal. The slew rate enhancing module is coupled to the input terminal and the output terminal of the repair operational amplifier and used to selectively control the repair operational amplifier to increase a slew rate of the output signal according to whether the slew rate of the output signal is smaller than a default slew rate.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: August 23, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Po-Cheng Lin, Yu-Lung Lo
  • Patent number: 9423642
    Abstract: The invention discloses a package structure of a driving apparatus of a display. The driving apparatus of the display includes a plurality of driving units. The package structure includes a substrate and a plurality of package units. The substrate is used to carry the plurality of driving units. The plurality of driving units is apart to each other. The plurality of package units is used to package the plurality of driving units respectively to form a plurality of driving unit package body apart to each other. A total output channel number of the driving apparatus of the display equals to a total channel number of the plurality of driving units. This package structure can avoid heat concentration on the driving apparatus of the display to achieve good cooling effect and output effectiveness of the driving apparatus of the display will be not reduced accordingly.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: August 23, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Ching-Yung Chen, Po-Cheng Lin
  • Patent number: 9396692
    Abstract: The invention provides a driving circuit applied in a LCD apparatus. The driving circuit includes N first channels, N second channels, 2N first switching units, and 2N second switching units. N is a positive integer and N?2. N second channels correspond to N first channels. When the driving circuit is operated under a first operation mode, N first switching units in the N first channels switch to connect with the corresponding N second channels, and the other N first switching units in the N second channels switch to connect with the corresponding N first channels according to a control signal respectively. N second switching units in the N first channels switch to connect with the corresponding N second channels, and the other N second switching units in the N second channels switch to connect with the corresponding N first channels according to a control signal respectively.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: July 19, 2016
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yi-Ting Wang, Li-Ping Lin, Ying-Lieh Chen