Patents by Inventor Jen-Ta Yang

Jen-Ta Yang 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).

  • Publication number: 20220293028
    Abstract: A timing control device for the display panel includes a control circuit. The control circuit is configured to generate a plurality of gate scanning control signals and a data transmission control signal. In response to that a display refresh rate changes from a first frequency to a second frequency, the control circuit adjusts the plurality of gate scanning control signals to generate a plurality of adjusted gate scanning control signals, or adjusts the data transmission control signal to generate an adjusted data transmission control signal, for driving a display panel under the second frequency as the display refresh rate.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 15, 2022
    Applicant: Novatek Microelectronics Corp.
    Inventors: Grace Li, Jen-Ta Yang, Yen-Tao Liao, Yu-Hung Su
  • Patent number: 11222614
    Abstract: An image processing method with auto-adjusting gamma value is provided. This image processing method includes: receiving a detected value dependent upon a view angle between a normal direction of a screen and a sight direction of a viewer to the screen; receiving an original video frame with a plurality of pixels; determining at least one gamma table to obtain a gamma value for a pixel of the plurality of pixels according to the detected value, wherein there is an original pixel value corresponding to the pixel; and generating and outputting a corrected pixel value of the pixel based on the gamma value and the original pixel value of the pixel, wherein the screen is configured to show a corrected video frame having the pixel with the corrected pixel value. An image processing assembly and an image processing system are also provided.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 11, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yun-Shu Yang, Yen-Tao Liao, Jen-Ta Yang
  • Patent number: 10957236
    Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: March 23, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yen-Tao Liao, Hung-Hsiang Chen, Jen-Ta Yang, Yi-Wei Lin, Huang-Chin Tang
  • Publication number: 20200387211
    Abstract: A display device is applicable to a display system having a display panel and a backlight module. The display device includes an image receiving unit, a power-saving control device, a display controller and a backlight module controller. The frequency of the backlight module is a non-zero frequency for still frames. The backlight module is controlled to perform power saving by converting a control signal to a pulse signal and changing a width, a number or a distribution rule of the pulse signal while the backlight module is continuing providing the backlight. In response to the power-saving control device judges that the received frames are not still or are still for a time shorter than the predetermined time, the power-saving control device does not output the control signal to the backlight module controller for controlling the backlight module to perform power saving to reduce power consumption.
    Type: Application
    Filed: August 23, 2020
    Publication date: December 10, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Hsin-Yi Chang, Jen-Ta Yang, Min-Jung Chen
  • Publication number: 20200342801
    Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Inventors: Yen-Tao Liao, Hung-Hsiang Chen, Jen-Ta Yang, Yi-Wei Lin, Huang-Chin Tang
  • Patent number: 10795426
    Abstract: A display device includes an image receiving unit, a power-saving control device, a display control unit, and a backlight module control unit. The power-saving control device judges whether or not received frames are still for a predetermined time. If the power-saving control device judges that the received frames are still for the predetermined time, the power-saving control device outputs a first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption while continuing displaying frames, and the backlight module control unit controls the backlight module to continue providing the backlight; while if the received frames are not still or are still for a time shorter than the predetermined time, the power-saving control device does not output the first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: October 6, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsin-Yi Chang, Jen-Ta Yang, Min-Jung Chen
  • Patent number: 9024931
    Abstract: A power-saving mechanism of display and a control method using the same are disclosed. The mechanism has no need as the prior art where a user's setting is needed to decide whether or not entering a power-saving operation mode or shutting off the display. The display power-saving mechanism of the present invention can judge whether or not the display frames are still; if the frames are still in a certain time, the display automatically enters the power-saving operation mode. The display power-saving mechanism is disposed in the hardware architecture of the display and capable of automatically judging whether or not to enter the power-saving operation mode without the user's setting.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: May 5, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsin-Yi Chang, Jen-Ta Yang, Min-Jung Chen
  • Publication number: 20140340384
    Abstract: A display device includes an image receiving unit, a power-saving control device, a display control unit, and a backlight module control unit. The power-saving control device judges whether or not received frames are still for a predetermined time. If the power-saving control device judges that the received frames are still for the predetermined time, the power-saving control device outputs a first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption while continuing displaying frames, and the backlight module control unit controls the backlight module to continue providing the backlight; while if the received frames are not still or are still for a time shorter than the predetermined time, the power-saving control device does not output the first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Inventors: Hsin-Yi Chang, Jen-Ta Yang, Min-Jung Chen
  • Patent number: 8330746
    Abstract: Addressing method for multiple chips is provided. Each chip includes an input enable terminal, an output enable terminal, a data input terminal, and a clock terminal. The output enable terminal of a previous stage is connected to the input enable terminal of a next stage. The method includes setting an initial address to an address of each chip via a system; setting a state of each chip to a disable state; enabling the state of a first-one chip among the chips to an enable state, and setting the first chip as a previous-stage chip; updating the address of the previous-stage chip; enabling a next-stage chip connected after the previous-stage chip, in which the system controls the output enable terminal of the previous-stage chip to output an enable signal to enable the next-stage chip, according to the address of the previous-stage chip; and the updating the address of the next-stage chip.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 11, 2012
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Ta Yang, Yung-Lung Chen
  • Publication number: 20110018888
    Abstract: Addressing method for multiple chips is provided. Each chip includes an input enable terminal, an output enable terminal, a data input terminal, and a clock terminal. The output enable terminal of a previous stage is connected to the input enable terminal of a next stage. The method includes setting an initial address to an address of each chip via a system; setting a state of each chip to a disable state; enabling the state of a first-one chip among the chips to an enable state, and setting the first chip as a previous-stage chip; updating the address of the previous-stage chip; enabling a next-stage chip connected after the previous-stage chip, in which the system controls the output enable terminal of the previous-stage chip to output an enable signal to enable the next-stage chip, according to the address of the previous-stage chip; and the updating the address of the next-stage chip.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 27, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jen-Ta Yang, Yung-Lung Chen
  • Publication number: 20100171749
    Abstract: An over driving method for a display is disclosed. The steps of the method mentioned above includes the following. A power saving parameter is set equal to an initial value, a current frame data is received, and a previous frame data is read from a memory. Afterward, the power saving parameter is updated by comparing the current frame data and the previous frame data. Moreover, an over driving process is executed to the display according to the comparison result for the power saving parameter and a reference value.
    Type: Application
    Filed: April 23, 2009
    Publication date: July 8, 2010
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Min-Jung Chen, Jen-Ta Yang, An-Hsu Lee
  • Publication number: 20090303217
    Abstract: The exemplary examples of the present invention provide a transmission interface and method thereof for reducing power consumption and electromagnetic interference. The transmission interface is used in the Liquid Crystal Display (LCD), and the LCD has x source drivers. The ith source driver processes ki transmission signals, wherein ki is a natural number larger than 1, x is a natural number, and i is an integer from 1 to x. The transmission interface includes an encoding device. The encoding device receives ( ? i = 1 x ? ? k i ) image signals.
    Type: Application
    Filed: November 26, 2008
    Publication date: December 10, 2009
    Applicant: Novatek Microelectronics Corp.
    Inventors: Min-Jung Chen, Jen-Ta Yang, Chien-Cheng Tu
  • Publication number: 20090115767
    Abstract: A power-saving mechanism of display and a control method using the same are disclosed. The mechanism has no need as the prior art where a user's setting is needed to decide whether or not entering a power-saving operation mode or shutting off the display. The display power-saving mechanism of the present invention can judge whether or not the display frames are still; if the frames are still in a certain time, the display automatically enters the power-saving operation mode. The display power-saving mechanism is disposed in the hardware architecture of the display and capable of automatically judging whether or not to enter the power-saving operation mode without the user's setting.
    Type: Application
    Filed: January 14, 2008
    Publication date: May 7, 2009
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsin-Yi Chang, Jen-Ta Yang, Min-Jung Chen
  • Publication number: 20080291150
    Abstract: In order to solve a problem of deviation of a gamma curve of a display device due to temperature variation, the present invention provides a thermal compensation device for compensating a gamma curve of a display device. The thermal compensation device includes a thermal sensor, a storage unit, and a thermal compensation unit. The thermal sensor is used for detecting an ambient temperature inside the display device. The storage unit is used for storing a plurality of numerical data groups. The thermal compensation unit is coupled to the thermal sensor and the storage unit is used for selecting one numerical data group from the plurality of numerical data groups and transforming original image data into compensated image data with the selected numerical data group.
    Type: Application
    Filed: July 22, 2007
    Publication date: November 27, 2008
    Inventors: Jen-Ta Yang, Chih-Hsuan Lin
  • Patent number: 7415554
    Abstract: A system for parallel data transmission including a master device and a slave device is provided. The master device includes a first and a second I/O ports for outputting a read signal and a write signal, respectively. The slave device includes a third and a fourth I/O ports electrically coupled to the first and the second I/O ports, respectively. When the master device outputs the read or the write signal, the slave device transmits status information of the slave device to the master device after the master device has transmitted an address latch enable signal and before the slave device receives the address latch enable signal which is active. The master device outputs an address signal after transmitting the address latch enable signal and latches the address signal for the addressing for reading or writing data after the slave device has received the address latch enable signal.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: August 19, 2008
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Ta Yang, Rei-Hong Chang
  • Publication number: 20070121263
    Abstract: A timing controller chip including a first resistor, a second resistor, a first electrostatic discharge (ESD) protection circuit, a second ESD protection circuit, and an operational amplifier is provided. Wherein, the first and the second resistors are electrically coupled to a first and a second low voltage differential signal (LVDS) input pins of the timing controller chip, respectively. The first and the second ESD protection circuits are electrically coupled to the first and the second resistors, respectively. Moreover, the operational amplifier has a non-inverting input terminal electrically coupled to the first resistor and the first ESD protection circuit, and an inverting input terminal is electrically coupled to the second resistor and the second ESD protection circuit.
    Type: Application
    Filed: January 20, 2006
    Publication date: May 31, 2007
    Inventors: Jeng-Shu Liu, Jen-Ta Yang, Chien-Cheng Tu
  • Publication number: 20070103413
    Abstract: A method for transmitting control signal of flat panel display is provided. The method is used for controlling a display panel module with a display control device. There is a transmission interface including a display data transmission channel between the display panel module and the display control device. The method includes the following steps: first, during data transmission, the display control device transmitting display data to the display panel module through the display data transmission channel; during blanking period, the display control device transmitting a control signal to control the display panel module by sharing the display data transmission channel.
    Type: Application
    Filed: February 26, 2006
    Publication date: May 10, 2007
    Inventors: Jen-Ta Yang, Kuo-Chi Chen
  • Publication number: 20070067526
    Abstract: A system for parallel data transmission including a master device and a slave device is provided. The master device includes a first and a second I/O ports for outputting a read signal and a write signal, respectively. The slave device includes a third and a fourth I/O ports electrically coupled to the first and the second I/O ports, respectively. When the master device outputs the read or the write signal, the slave device transmits status information of the slave device to the master device after the master device has transmitted an address latch enable signal and before the slave device receives the address latch enable signal which is active. The master device outputs an address signal after transmitting the address latch enable signal and latches the address signal for the addressing for reading or writing data after the slave device has received the address latch enable signal.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 22, 2007
    Inventors: Jen-Ta Yang, Rei-Hong Chang
  • Patent number: 6538344
    Abstract: An uninterruptable power supply system is connected to motherboard and hard disk respectively. An interrupt signal is sent to power management circuit to command power management circuit to control the power switching circuit to switch the power of motherboard and hard disk to battery when a power interrupt is detected in a running computer by power detecting circuit. At the same time, central processing unit (CPU) on motherboard is commanded to save running programs and data in the hard disk. As such, CPU on motherboard can read the stored programs and data from hard disk when computer is turned on again. Thus computer may recover to the previous normal state. This can effectively avoid data lost once blackout occurred.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: March 25, 2003
    Assignee: Zone Technology, Inc.
    Inventors: Jen-Ta Yang, Chia-Chi Tsui