Patents Assigned to Hannstar Display Corp.
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Publication number: 20130076988Abstract: A multiplex application method for channel search which is used for a television. This method includes following steps of a channel performing a search operation, wherein the television executes an application simultaneously when the channel search operation is executed; and finishing the channel search operation. In other words, the television executes the channel search operation and the application at the same time for thereby providing the television with add-on values.Type: ApplicationFiled: December 27, 2011Publication date: March 28, 2013Applicant: HANNSTAR DISPLAY CORP.Inventor: Cheng-Liang Wu
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Publication number: 20130076254Abstract: A light emitting diode (LED) driving circuit preventing light leakage issue. The LED driving circuit comprises an LED driver, a driving circuit module and a power supply. When an input voltage is much higher, a high frequency pulse width modulation signal is set to a low level to avoid a light leakage of the LED by turning off a metal oxide semiconductor field effect transistor (MOSFET), such that the input voltage is not limited by the light leakage of the LED. As a result, the input voltage can be increased sufficiently for further reducing a switching loss effectively.Type: ApplicationFiled: January 3, 2012Publication date: March 28, 2013Applicant: Hannstar Display Corp.Inventors: Yu TSAI, Che-Yu CHUANG
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Publication number: 20130070853Abstract: An image searching module and a searching method thereof are applicable to motion estimation of a dynamic image-processing system. The image searching module comprises a storage module, a setting module, and a processing module. The storage module stores a first frame, and the first frame has a first block and a first pixel. The setting module sets a plurality of first estimation blocks with a first estimation pixel and a first interval as a side length in a second frame. The setting module sets an initiation point on the position corresponding to the first pixel in the second frame, and arranges these first estimation blocks in order along a predetermined direction. The processing module matches each first estimation block and the first block to work out respectively a first predicted strength value of each first estimation block corresponding to the first block.Type: ApplicationFiled: February 8, 2012Publication date: March 21, 2013Applicant: HANNSTAR DISPLAY CORP.Inventor: Wei-Yu Wu
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Patent number: 8398286Abstract: A backlight module for a liquid crystal display according to the present invention is provided. The backlight module includes a light guide plate, a light source, a first reflection sheet and a second reflection sheet. The light guide plate has an upper surface, a lower surface, and opposing first and second side surfaces. The light source is disposed on the first side surface of the light guide plate and comprises a plurality of point light sources. The first reflection sheet is disposed on the light source and the upper surface of the light guide plate to reflect light beams emitting from the light source to the light guide plate. The first reflection sheet includes a plurality of first portions, a plurality of second portions and a plurality of protrusion portions, wherein the first portions are positioned corresponding to the light source and arranged alternately with the second portions. The protrusion portions extend from the second portions toward the second side surface of the light guide plate.Type: GrantFiled: July 2, 2010Date of Patent: March 19, 2013Assignee: Hannstar Display Corp.Inventor: Ke Chin Chang
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Publication number: 20130057484Abstract: A liquid crystal display according to the present disclosure is provided. The liquid crystal display includes a frame, a backlight module, a plurality of hooking members, an LCD panel, and a touch sensor. According to the liquid crystal display of the present disclosure, wherein the hooking members on the frame may secure the touch sensor or the LCD panel on the backlight module without need of using double-sided tapes or optical adhesive.Type: ApplicationFiled: June 8, 2012Publication date: March 7, 2013Applicant: HANNSTAR DISPLAY CORP.Inventors: Ming Sheng CHIU, Wen Chi LIN, Hung Chen KAO, Chien Hsiang TSENG, Chia Feng TENG
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Publication number: 20130057811Abstract: A pixel structure of a display is disclosed. The pixel structure of the display comprises at least an unit pixel. The unit pixel comprises a plurality of X type light-impenetrable regions and a plurality of light-penetrable regions, or the unit pixel comprises a plurality of X type first light-impenetrable regions, a plurality of X type second light-impenetrable regions and a plurality of light-penetrable regions. The pixel structure of the display of this invention provides good transmittance. In addition, the pixel structure of the display produces four domains or even eight domains. As a result, the problem of color shift can be improved.Type: ApplicationFiled: December 12, 2011Publication date: March 7, 2013Applicant: HANNSTAR DISPLAY CORP.Inventor: Chia-Hua YU
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Publication number: 20130043796Abstract: A compensation circuit of organic light emitting diode comprising a first capacitor, a second capacitor, a stabilizer unit, a third transistor, an organic light emitting diode and a driver unit. The stabilizer unit comprises a first transistor, a second transistor and a photodiode. The driver unit comprises a fourth transistor, a fifth transistor and a sixth transistor. The fifth transistor is used for driving the organic light emitting diode. The first transistor, the second transistor, the third transistor, the fourth transistor and the sixth transistor are used as switches. The first capacitor is used as a compensation capacitor. The second capacitor is used for storing a data voltage. By controlling a voltage of a node in the circuit, the current of the organic light emitting diode can be increased to maintain a stable brightness of the organic light emitting diode.Type: ApplicationFiled: January 26, 2012Publication date: February 21, 2013Applicant: HANNSTAR DISPLAY CORP.Inventors: Chien-Chuan Ko, Chao-Hui Wu
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Patent number: 8368633Abstract: A pixel data preprocessing method includes the steps of: inputting a first frame data into a timing controller; performing a differential operation on the first frame data to generate a first frame differential data; writing the first frame differential data into a frame memory with the timing controller; reading a second frame differential data from the frame memory with the timing controller; performing an inverse differential operation on the second frame differential data to generate a second frame data; comparing the first frame data and the second frame data; and outputting a driving data with the timing controller according to a comparison result of comparing the first frame data and the second frame data. The present invention further provides a pixel data preprocessing circuit.Type: GrantFiled: December 11, 2009Date of Patent: February 5, 2013Assignee: Hannstar Display Corp.Inventors: Tai Shun Liao, Po Sheng Shi, Chao Hui Wu
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Patent number: 8368834Abstract: The present invention discloses a display device comprising a bezel, a cell, at least one film, a light bar and a composite backlight module. The composite backlight module comprises a plurality of connecting structures coupled with the bezel for fixing and protecting the cell, a containing space for containing the cell and the film, and a light guide portion for guiding light emitted by the light bar to a light exit surface of the composite backlight module. The composite backlight module is made of a same material by injection molding.Type: GrantFiled: June 23, 2009Date of Patent: February 5, 2013Assignee: Hannstar Display Corp.Inventors: Wei-Jung Chan, Chia-Feng Teng
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Publication number: 20130031591Abstract: An internet protocol television including a TV main chip, an internet module and a micro control processor. The TV main chip receives a TV signal and an internet signal, and outputs a video signal and an audio signal after processing the received TV signal and the internet signal. The internet module receives processes and outputs the internet signal. The micro control processor receives a command signal and accordingly activates the TV main chip to execute corresponding commands. The micro control processor is able to directly control the receiving, processing and outputting of the internet signal by the internet module without activating the TV main chip.Type: ApplicationFiled: November 8, 2011Publication date: January 31, 2013Applicant: HANNSTAR DISPLAY CORP.Inventor: Yi-Ming Bai
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Patent number: 8363396Abstract: A position-shifting structure includes a position-shifting frame and a base. The position-shifting frame includes two lateral wall portions and a handle portion. The two lateral wall portions are correspondingly provided with a notch and a mounting hole each and the notches contain bevel surfaces. The base has a receiving space symmetrically provided with two inward protrusions; and the position-shifting frame is connected to and seated in the receiving space with the mounting holes pivotally engaged with the protrusions. When the object is received in the receiving space, the notches are engaged with two lateral projections of the object. When the handle portion is upward pulled, the bevel surfaces drive the object to move from its initial position in the receiving space.Type: GrantFiled: November 23, 2010Date of Patent: January 29, 2013Assignee: Hannstar Display Corp.Inventor: Tsung-Yin Wu
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Publication number: 20130009886Abstract: An embodiment of this invention provides a touch panel, which comprises a touch screen and a display. The touch screen comprises a patterned, transparent first conductive layer comprising a sensing pattern and a shielding pattern. The touch panel features in that the touch screen employs the sensing pattern as a sensing layer, and the display employs the shielding pattern as an electrostatic protection layer.Type: ApplicationFiled: October 20, 2011Publication date: January 10, 2013Applicant: HANNSTAR DISPLAY CORP.Inventors: HSU-HO WU, SUNG-CHUN LIN, YI-CHUNG JUAN, CHANG-CHING YEH
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Publication number: 20130009550Abstract: A compensation circuit for keeping luminance intensity of a diode. The compensation circuit comprises a stabilization unit, a first transistor, a second transistor, a third transistor, a fourth transistor and an organic light emitting diode (OLED). The stabilization unit comprises a photodiode and a compensation capacitor. The second transistor is used to control the input time of data. In the operation of the OLED, the third transistor discharges or charges a node of the stabilization unit continuously to keep a voltage equal to VSS or VDD, so as to maintain the luminance intensity of the OLED.Type: ApplicationFiled: January 19, 2012Publication date: January 10, 2013Applicant: HANNSTAR DISPLAY CORP.Inventors: Chien-Chuan Ko, Chao-Hui Wu
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Publication number: 20130002738Abstract: A testing circuit of a dual gate cell panel and a color display method of the dual gate cell panel. There are many data lines and scan lines in the dual gate cell panel, and the data lines are divided into three groups, and the scan lines are divided into two groups. The data lines or scan lines of each group are connected respectively to metal wires with a test pad each. When an appropriate signal is inputted to each test pad, the dual gate cell panel shows red, green and blue colors individually, so that defects of the dual gate cell panel can be detected accurately to avoid any unnecessary waste on the defective dual gate cell panel incurred in the subsequent manufacturing processes.Type: ApplicationFiled: December 8, 2011Publication date: January 3, 2013Applicant: HANNSTAR DISPLAY CORP.Inventor: Tai-Fu Lu
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Patent number: 8339381Abstract: The present invention provides a passive optical pen for using with a display device, which comprises a handgrip for being held by a user, a reflector positioned on an end of the handgrip, and a transparent shield covering the reflector. The reflector reflects ambient light propagated from the display device toward the display device. The transparent shield keeps the reflector at a distance from the display device, and collects the ambient light.Type: GrantFiled: November 30, 2006Date of Patent: December 25, 2012Assignee: HannStar Display Corp.Inventors: Shi-Yu Chien, Wei-Chou Chen
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Patent number: 8339343Abstract: The present invention discloses a liquid crystal display (LCD) device. The LCD device comprises an upper substrate and a lower substrate. Every two data lines and two scan lines define two pixels. Each pixel comprises a pixel electrode and a transistor, and a biased electrode is arranged under a slot between two pixel electrodes of the two pixels. When positive frame, the voltage of the biased electrode, VE, is greater than the voltage the pixel electrode, VP; when negative frame, the voltage of the biased electrode, VE, is smaller than the voltage the pixel electrode, VP.Type: GrantFiled: December 30, 2008Date of Patent: December 25, 2012Assignee: Hannstar Display Corp.Inventor: Ching-Chao Chang
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Publication number: 20120299844Abstract: The display device includes a touch plate, a sensing plate, a first distance and a second distance. The touch plate includes a first area having a first thickness and a second area having a second thickness. The first thickness is larger than the second thickness. The sensing plate is disposed below the touch plate. The first distance is a shortest distance between the sensing plate and the touch plate on the first area. The second distance is a shortest distance between the sensing plate and the touch plate on the second area. The first distance is shorter than the second distance.Type: ApplicationFiled: October 17, 2011Publication date: November 29, 2012Applicant: HANNSTAR DISPLAY CORP.Inventor: Chien-Hsiang Huang
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Patent number: 8319935Abstract: An embodiment of the present invention provides a heat-dissipating device of electronic equipment that comprises a housing, a heat source, a speaker, and a vibration film arranged inside the housing. The vibration film will vibrate when receiving the energy transmitted from the speaker, resulting in that the heat convection is accelerated and the heat generated by the heat source is removed.Type: GrantFiled: September 23, 2009Date of Patent: November 27, 2012Assignee: Hannstar Display Corp.Inventor: Ting-Hang Pei
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Patent number: 8305329Abstract: An integrated gate driver circuit receives a plurality of clocks and includes a plurality of driving units cascaded in series. Each driving unit is for driving a load and includes an input terminal, an output terminal, a first switch and a second switch. The first switch has a first terminal coupled to the input terminal, a second terminal coupled to a first node, and a control terminal receiving a first clock, and the first switch is turned on when the first clock is at high level. The second switch has a first terminal receiving a second clock, a second terminal coupled to the output terminal, and a control terminal coupled to the first node, wherein the second clock charges and discharges the load through the second switch when the first node is at high level; wherein the output terminal of each driving unit is coupled to the input terminal of the immediately succeeding driving unit.Type: GrantFiled: September 16, 2009Date of Patent: November 6, 2012Assignee: HannStar Display Corp.Inventors: Yan Jou Chen, Yung Hsin Lu, Chia Hua Yu, Sung Chun Lin
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Patent number: 8299821Abstract: An integrated gate driver circuit includes an output drive circuit and a voltage stabilizing circuit. The voltage stabilizing circuit is configured to stabilize an output voltage outputted by the output drive circuit thereby reducing the ripple of the output voltage.Type: GrantFiled: May 18, 2010Date of Patent: October 30, 2012Assignee: Hannstar Display Corp.Inventors: Yan Jou Chen, Hsien Cheng Chang