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Assignee: Himax Technologies, Inc.


Location: Tainan County, TW
No. of patents: 24

NumberTitleIssue Date
7847763Method for driving passive matrix OLED
A method for driving a passive matrix organic light emitting diode (PMOLED) is provided. A pulse width modulation (PWM) constant current is provided to OLED pixels connected to a segment of a PMOLED array without voltage pre-charging the segment. Then, an offset val...
12/07/2010
7830349Gate driving apparatus
A gate driving apparatus for driving a pixel array on a panel. The apparatus includes a driver chip having a first transistor with a gate coupled to receive a Nth gate driving signal, a source coupled to receive a first voltage and a drain coupled to a Nth scan line...
11/09/2010
7812803Driving method for cholesteric liquid crystal display
The present invention relates to a driving method for cholesteric liquid crystal display. A plurality of pixels of the display are controlled by a plurality of row drivers and a plurality of column drivers. According to the method of the invention, firstly, a DC inp...
10/12/2010
77289102D YC separation device and YC separation system
The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-...
06/01/2010
7589705Circuit and method for driving display panel
A circuit for driving a display panel comprises a source driving circuit having a plurality of driving units for driving the display panel according to display data; at least one of the driving units has a buffer and a switch circuit wherein the buffer includes an i...
09/15/2009
7514761Triple operation voltage device
A triple operation voltage device including a first type substrate, a high voltage (HV) first type well, a second type well, a low voltage (LV) device well, and a middle voltage (MV) device well is provided. The HV first type well is disposed inside the first type s...
04/07/2009
7486267Output devices and display devices utilizing same
An output device for outputting an output signal. The output device comprises an amplifying unit and a control unit. The amplifying unit has a first input terminal, a second input terminal, and an output terminal outputting the output signal, wherein the amplifying ...
02/03/2009
7445995Flash memory structure and fabrication method thereof
A flash memory structure comprises a semiconductor substrate, a source region, a drain region, a first insulating dielectric layer, a floating gate, a second insulating dielectric layer, and a control gate. The semiconductor substrate has a first top surface and a s...
11/04/2008
7436383Driving method for cholesteric liquid crystal display
The present invention relates to a driving method for cholesteric liquid crystal display. A plurality of pixels of the display are controlled by a plurality of row drivers and a plurality of column drivers. According to the method of the invention, firstly, a DC inp...
10/14/2008
7433003Liquid crystal on silicon panel and method of manufacturing the same
A liquid crystal on silicon panel. The liquid crystal on silicon panel includes a lower and upper substrate, a liquid crystal sealed between the lower and the upper substrate, a plurality of color pixels disposed on the lower substrate and separated from each other ...
10/07/2008
7432922Source driver and source driving method
A source driver for LCD devices, used for driving at least one data line, comprises an input for receiving a predetermined voltage; an output electrically being connected to the data line and having an output voltage; a voltage clamping circuit for clamping the outp...
10/07/2008
7411635LCD TV and projection-based backlight system used therefor
An LCD TV includes a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed in a lower cabinet of the housing, wherein the projection-based back...
08/12/2008
7411634LCD TV and projection-based backlight system used therefor
An LCD TV includes a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed in a lower cabinet of the housing, wherein the projection-based back...
08/12/2008
7372525Arrangement for pixel array of color filter
The present invention relates to a color filter with mosaic pixel array arrangement. The color filter comprises a plurality of pixel arrays. The pixel array has four sub-pixels. The color of the sub-pixel of the pixel array is identical to that of another sub-pixel ...
05/13/2008
7369317Head-mounted display utilizing an LCOS panel with a color filter attached thereon
Display apparatus such as a see-through head-mounted display (HMD) through which a viewer could capture a scene while seeing an object through the apparatus is disclosed. In the display apparatus, a liquid crystal on silicon (LCOS) panel with a color filter attached...
05/06/2008
7356631Apparatus and method for scheduling requests to source device in a memory access system
An apparatus and method for scheduling requests to a source device is provided. The apparatus comprises a high-priority request queue for storing a plurality of high-priority requests to the source device; a low-priority request queue for storing a low-priority requ...
04/08/2008
7315333TV tuners and methods thereof
TV tuners and methods thereof are provided. A TV tuner includes a first frequency converting circuit, a second frequency converting circuit, and a demodulator. The first frequency converting circuit, switchable between a first operating mode and a second operating m...
01/01/2008
7312648Temperature sensor
A temperature sensor, which comprises a temperature-dependent element, a comparator unit, first/second capacitors and first/second switching capacitors, is provided. The temperature-dependent element has an input terminal selectively coupled to one of a first curren...
12/25/2007
7310079Apparatus and method of charge sharing in LCD
A method for charge sharing between source lines of a pixel array. The method includes the steps of grouping the source lines into pairs, implementing charge sharing if data polarities of a currently and a last scanned row are different; otherwise, in each pair of t...
12/18/2007
7301586LCD TV and projection-based backlight system used therefor
An LCD TV includes a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed in a lower cabinet of the housing, wherein the projection-based back...
11/27/2007
7291993Method for driving a fluorescent lamp and an inverter circuit for performing such a method
A method for driving a fluorescent lamp and an inverter circuit for performing the same are used to reduce an amount of electromagnetic interference (EMI) generated by a transformer and an instantaneous loading of a DC voltage source. The inverter circuit comprises ...
11/06/2007
7277077Gate driving apparatus
A gate driving apparatus for driving a pixel array on a panel. The apparatus includes a driver chip having a first transistor with a gate coupled to receive a Nth gate driving signal, a source coupled to receive a first voltage and a drain coupled to a Nth scan line...
10/02/2007
7262562Method for driving a fluorescent lamp and an inverter circuit for performing such a method
A method for driving a fluorescent lamp and an inverter circuit for performing the same are used to reduce an amount of electromagnetic interference (EMI) generated by a transformer and an instantaneous loading of a DC voltage source. The inverter circuit comprises ...
08/28/2007
7206007Method for video processing and scalar using the same
A method for video processing which provides a scaled image using two different clock frequencies is provided. The method receives source pixel data using a first clock signal and scales the source pixel data to destination pixel data. After that, the destination pi...
04/17/2007
 
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