Innocom Technology(shenzhen) Co., Ltd.

Chimei Innolux Corporation

Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Innolux Corporation

Chimel Innolux Corpration

Jian-Feng Wang

Jian-Jun Zhu

Liang-Yan Dai

Tong Zhou

Xiang-Qing Kong

An exemplary flat panel display includes a micro processing unit, a display signal input socket defining a safeguarding terminal, an input interface configured for a user to input a user code, a first storage unit storing a security code, and a second storage unit storing a safeguarding mark. The micro processing unit is configured to monitor a voltage applied to the safeguarding terminal, detect a status of the safeguarding mark, compare the user code with the security code according to the status of the safeguarding mark, and output a control signal according to a result of the comparison.

Flat panel display with display signal input socket having safeguarding terminal

An exemplary embodiment of method of establishing a gamma table using a system includes following steps. Providing a signal generator, a display device, and a color analyzer, consists of measuring luminance values of the images corresponding to a plurality of reference sampling points. Obtaining a luminance characteristic curve based on the reference sampling points and luminance values using Bezier curve interpolation. Locating the gray scales on the luminance characteristic curve with the same luminance values as the gray scales of a standard gamma table. And establishing a gamma table by comparing the gray scales of the standard gamma curve and the luminance characteristic curve.

Method of establishing a gamma table

An LCD includes an OSD system and a gamma correction circuit. The OSD system includes an input system for setting gamma values. The gamma correction circuit includes a look-up table. The look-up table includes a plurality of sub-look-up tables, each corresponding to a gamma value. Each sub-look-up table stores a plurality of original gray level values and a plurality of corrected gray level values corresponding to the original gray level values. The gamma correction-circuit receives an original gray level value corresponding to a video signal, and searches a sub-look-up table corresponding to a set gamma value for a corresponding corrected gray level value. A method for controlling the LCD is also provided.

Liquid crystal display and method for controlling same

A storage method for a gamma value look-up table comprises storing gamma values corresponding to grays exceeding or equaling a 33rd gray in the gamma value look-up table, and calculating gamma values corresponding to a 1st gray to a 32nd gray by a formula.

Storage method for gamma value look-up table

An exemplary method for establishing a gamma correction table for a liquid crystal display includes: providing a liquid crystal display, a signal generator, and a color analyzer, the liquid crystal display comprising a predetermined gamma correction table; invalidating a predetermined gamma correction table of the liquid crystal display; initializing the liquid crystal display, the signal generator, and the color analyzer; measuring 2(n is a natural number) reference gray scales of a single-colored image; obtaining a single-colored correction curve relating to luminance values corresponding the reference gray scales; obtaining an ideal single-colored gamma curve; storing 256 gray scales corresponding to the luminance values that most close to the luminance values of gray scale 0 to gray scale 255; and establishing a gamma correction table.

Method for establishing gamma correction table for liquid crystal display

An exemplary method for cutting a first printed circuit board (PCB) into a plurality of second PCBs, the method includes: providing a plurality of first dimension parameters of the first PCB; providing a plurality of second dimension parameters and an interval parameter of the second PCB; performing a process for selecting a best calculating mode and a corresponding cutting parameter according to the first dimension parameters, the second dimension parameters, and the interval parameter; calculating coordinate parameters of each second PCB; and cutting the first PCB into the plurality of second PCBs.

Method for cutting PCB

An apparatus for adjusting a pixel clock frequency based on a phase locked loop (PLL) includes: a pixel clock generator () for generating an actual pixel clock having an actual frequency; a division frequency counter () for dividing the actual pixel clock into several pixel clocks having different frequency ranges by means of multiplying the actual frequency of the actual pixel clock by a multiplier; a reference frequency counter () for dividing the actual pixel clock by means of lowering the actual frequency of the actual pixel clock, and generating a reference frequency; a reactive frequency counter () for dividing the actual pixel clock by means of heightening the actual frequency of the actual pixel clock, and generating a reactive frequency; a PLL circuit () for integrating the reference frequency and the reactive frequency to generate a required pixel clock having a required frequency. A related method is also disclosed.

Apparatus and method for adjusting a pixel clock frequency based on a phase locked loop

A method for adjusting a resolution and refresh rate of a display monitor () of a computer system includes the steps of: providing a portable recording device () recording an auto-run application; connecting the portable recording device to a computer (); generating a matching resolution and refresh rate of the display monitor; and adjusting the current resolution and refresh rate of the computer system to the matching resolution and refresh rate. The portable recording device can be a floppy disk, a compact disk, or a USB (Universal Serial Bus) recorder.

Method for adjusting resolution and refresh rate of display monitor of computer system

A video graphics array color signal generator is provided. The signal generator includes an FPGA (field program gate array) device (), a PROM (programmable read only memory) (), a PLL (phase locked loop) circuit (), a D/A (digital/analog) convertor () connected with the FPGA device, a VGA (video graphics array) interface (), a pixel clock generator () which generates pixel clocks continuously at a frequency, and a keyboard () which provides operating buttons for users.

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Shenzhen, China

Jian-Feng Wang