Patents Assigned to Raydium Semiconductor Corporation
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Patent number: 9830494Abstract: 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: GrantFiled: July 11, 2016Date of Patent: November 28, 2017Assignee: Raydium Semiconductor CorporationInventors: Chang-Ching Chiang, Kun-Pei Lee
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Patent number: 9746978Abstract: 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: GrantFiled: September 28, 2015Date of Patent: August 29, 2017Assignee: Raydium Semiconductor CorporationInventors: Yi-Ying Lin, Kun-Pei Lee, Hsin-Wei Shieh
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Patent number: 9705455Abstract: 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: GrantFiled: February 11, 2016Date of Patent: July 11, 2017Assignee: Raydium Semiconductor CorporationInventors: Chih-Chuan Huang, Wen-Tsung Lin
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Patent number: 9696851Abstract: 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: GrantFiled: January 31, 2017Date of Patent: July 4, 2017Assignee: Raydium Semiconductor CorporationInventors: Yi-Ying Lin, Kuan-Ming Lin, Hsin-Wei Shieh, Kun-Pei Lee
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Patent number: 9692362Abstract: 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: GrantFiled: February 2, 2016Date of Patent: June 27, 2017Assignee: Raydium Semiconductor CorporationInventors: Yu-Chun Lin, Yung-Hsiang Yang
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Patent number: 9660794Abstract: 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: GrantFiled: July 10, 2015Date of Patent: May 23, 2017Assignee: Raydium Semiconductor CorporationInventor: Da-Rong Huang
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Patent number: 9612699Abstract: 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: GrantFiled: July 9, 2015Date of Patent: April 4, 2017Assignee: Raydium Semiconductor CorporationInventors: Yi-Ying Lin, Kuan-Ming Lin, Hsin-Wei Shieh, Kun-Pei Lee
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Patent number: 9589883Abstract: 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: GrantFiled: November 4, 2015Date of Patent: March 7, 2017Assignee: Raydium Semiconductor CorporationInventor: Ching-Yung Chen
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Patent number: 9530338Abstract: 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: GrantFiled: January 16, 2014Date of Patent: December 27, 2016Assignee: Raydium Semiconductor CorporationInventors: Chih-Chuan Huang, Ko-Yang Tso
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Patent number: 9530378Abstract: 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: GrantFiled: June 5, 2015Date of Patent: December 27, 2016Assignee: Raydium Semiconductor CorporationInventor: Cheng-Chin Liu
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Patent number: 9529452Abstract: 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: GrantFiled: June 20, 2014Date of Patent: December 27, 2016Assignee: Raydium Semiconductor CorporationInventors: Te-Chang Lin, Chien-Kuo Wang, Chia-Hsiu Lin, Ya-Ling Lu, Yi-Ming Chen, Wei-Yuan Cheng, Yu-Sheng Yeh
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Patent number: 9495933Abstract: 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: GrantFiled: October 17, 2014Date of Patent: November 15, 2016Assignee: Raydium Semiconductor CorporationInventor: Po-Cheng Lin
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Patent number: 9477340Abstract: 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: GrantFiled: April 22, 2015Date of Patent: October 25, 2016Assignee: Raydium Semiconductor CorporationInventors: Kuan-Ming Lin, Yi-Ying Lin, Hsin-Wei Shieh, Kun-Pei Lee
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Patent number: 9473143Abstract: 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: GrantFiled: May 4, 2015Date of Patent: October 18, 2016Assignee: Raydium Semiconductor CorporationInventor: Kuen-Shan Chang
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Patent number: 9448269Abstract: 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: GrantFiled: May 23, 2014Date of Patent: September 20, 2016Assignee: Raydium Semiconductor CorporationInventor: Cheng-Chin Liu
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Patent number: 9449570Abstract: 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: GrantFiled: October 11, 2013Date of Patent: September 20, 2016Assignee: Raydium Semiconductor CorporationInventors: Chih-Chuan Huang, Chien-Ming Chen
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Patent number: 9442617Abstract: 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: GrantFiled: January 16, 2015Date of Patent: September 13, 2016Assignee: Raydium Semiconductor CorporationInventors: Cheng-Rung Tsai, An-Yeu Wu, Shih-Lun Huang, Chih Yuan, Hsu-Ming Chuang
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Patent number: 9425754Abstract: 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: GrantFiled: July 1, 2014Date of Patent: August 23, 2016Assignee: Raydium Semiconductor CorporationInventors: Po-Cheng Lin, Yu-Lung Lo
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Patent number: 9423642Abstract: 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: GrantFiled: March 4, 2015Date of Patent: August 23, 2016Assignee: Raydium Semiconductor CorporationInventors: Ching-Yung Chen, Po-Cheng Lin
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Patent number: 9396692Abstract: 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: GrantFiled: July 25, 2013Date of Patent: July 19, 2016Assignee: Raydium Semiconductor CorporationInventors: Yi-Ting Wang, Li-Ping Lin, Ying-Lieh Chen