Abstract:
A method of color-real adjustment and system for adjusting a display device is disclosed, the system includes a server for outputting an image triggering signal and inputting an image extraction signal, performing a color-real process on the image extraction signal to obtain color data, transforming the color data into a color-real parameter and outputting the color-real parameter; an pattern generator for outputting an image pattern according to the image triggering signal; the display device for displaying an image corresponding according to the image pattern; an digital camera for detecting colors of the displayed image to output the image extraction signal; and a burner for storing the color-real parameter into a memory of the display device, wherein the color-real parameter matches a format of extended display identification data.

Description:
RELATED APPLICATION DATA  
       [0001]     This application is a divisional application of U.S. application Ser. No. 10/939,495 filed Sep. 14, 2004. 
     
    
     BACKGROUND OF THE INVENTION  
       [0002]     1. Field of the Invention  
         [0003]     The present invention relates to a method and system of color-real adjustment for adjusting a display device.  
         [0004]     2. Description of the Related Art  
         [0005]     Each display device displays color images according to display color parameters stored in an internal memory. Since the display color parameters stored in various display devices are different, display devices display the same color images with different colors.  
         [0006]     Due to the development of the Internet, many companies now display products on their websites, so that a user can browse the website and purchase these products via the Internet. However, each display device presents the same product with different colors, and the colors may be too red, too green or too blue. Consequentially, display devices typically do not present the true coloration of the products, since the user is unable to see the real color of the products, disappointment may be experienced when the actual product is received due to the misrepresentation of the colors, and this is very inconvenient for both the manufacturer and the consumer.  
         [0007]     Therefore, it is desirable to provide a method for adjusting a color-real display device and a related system to mitigate and/or obviate the aforementioned problem.  
       SUMMARY OF THE INVENTION  
       [0008]     To avoid the above-mentioned defect, the present invention provides a system of color-real adjustment for adjusting a display device, which comprises: a server for outputting an image triggering signal and inputting an image extraction signal, performing a color-real process on the image extraction signal to obtain color data, transforming the color data into a color-real parameter and outputting the color-real parameter; an pattern generator for outputting an image pattern according to the image triggering signal; the display device for displaying an image corresponding according to the image pattern; an image extraction device for detecting colors of the displayed image to output the image extraction signal; and a burner for storing the color-real parameter into a memory of the display device, wherein the color-real parameter is stored in extended display identification data.  
         [0009]     To avoid the above-mentioned defect, the present invention provides a method of color-real adjustment for adjusting a display device, which comprises: (A) outputting an image triggering signal to a pattern generator; (B) outputting an image pattern to the display device; (C) extracting color data according to a displayed image; (D) determining whether a driving voltage of the displayed image is a maximum value; if it is not, increasing the driving voltage of the displayed image; (E) changing the image pattern; (F) determining whether the color data corresponds to a termination; if it does not, performing step (B); (G) transforming the color data into a color-real parameter; and (H) storing the color-real parameter in a memory of the display device, wherein the color-real parameter matches a format of extended display identification data (EDID).  
         [0010]     The method and system of color-real adjustment for adjusting a display device adjusts the displayed color of image of the display device to met a color-real standard, and the display device can be a LCD or CRT displayer, PDP or such device. Therefore, the color of each product displayed on each display device will be the same.  
         [0011]     Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0012]      FIG. 1  is a schematic drawing of a system of color-real adjustment for adjusting a display device according to the present invention;  
         [0013]      FIG. 2  is a functional block drawing of a system of color-real adjustment for adjusting the display device according to the present invention;  
         [0014]      FIG. 3  is a flow chart of a method of color-real adjustment for adjusting the display device according to the present invention; and  
         [0015]      FIG. 4  is a flow chart of a method of color-real examination for examining the display device according to the present invention.  
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0016]     As shown in  FIG. 1 , a system of color-real adjustment for adjusting a display device of the present invent is shown, wherein a server  10  is connected to a monitor  20 , an image extraction device  30 , a pattern generator  32 , a burner  34 , and a display device  40 . The pattern generator  32  and the burner  34  are also connected to the display device  40 . The image extraction device  30  is preferably a digital camera.  
         [0017]     As shown in  FIG. 2 , the server  10  has a CPU  12 , a first connection interface  16 , a second connection interface  14 , and a burner connection interface  18 . The first connection interface  16  would be a RS-232 port (preferably), a USB port, or an Ethernet port, and is connected to the pattern generator  32 . The second connection interface  14  would be a RS-232 port (preferably), a USB port, or an Ethernet port, and is connected to the image extraction device  30 . The burner connection interface  18  is connected to the CPU  12  via an connection interface (Inter-Integrated Circuit (IIC) is preferable), and which has an output interface such as an RS-232 port (preferable), a parallel connection port, a USB port, or an Ethernet port, and is connected to the burner  34 . The burner  34  is adapted to update the data stored in a memory  46  of the display device  40 .  
         [0018]     As shown in  FIG. 3 , a method of color-real adjustment for adjusting the display device comprises the following steps:  
         [0019]     Step S 40 : initiating. The server  10  outputs a reset signal to initiate the image extraction device  30  and the pattern generator  32 .  
         [0020]     Step S 41 : outputting an image triggering signal to the pattern generator  32 . An image triggering signal output by the CPU  12  of the server  10  transmits to the pattern generator  32  via the second connection interface  14 .  
         [0021]     Step S 42 : outputting an image pattern to a display device  40 . When the pattern generator  32  receives the image triggering signal and then generates different image patterns to a microprocessor  42  of the display device  40  sequentially, or outputs an image pattern corresponding to the image triggering signal to the microprocessor  42 . The microprocessor  42  drives a display panel  44  according to the image pattern and display color parameters stored in the memory  46 , so that the image displayed by the display panel  44  corresponds to the image pattern.  
         [0022]     The pattern generator  32  is a standard and well-known image output device that generates different image patterns corresponding to different images including a red block, a green block, a blue block, or a white block.  
         [0023]     Step S 43 : extracting color data according to a displayed image. Since the display panel  44  displays the image, the image extraction device  30  extracts and output an image extraction signal corresponding to the displayed image to the CPU  12  via the second connection interface  14 .  
         [0024]     The CPU  12  performs a color data process to the image extraction signal to extract color data. For example, the images are a red block, a green block, and a blue block sequentially, then the CPU  12  gets three sets of color data corresponding to the red, green and blue colors respectively. When the image extraction signal corresponds to color data for white, the CPU  12  stops the procedure of the color data process, determines color-real parameters corresponding to the three sets of color data according to a color-real standard, and outputs the color-real parameters to the burner  34  via a burner connection interface  18 .  
         [0025]     Step S 44 : determining whether the driving voltage of the displayed image is a maximum value; if it is, step S 46  is performed. When the pattern generator  32  outputs different image patterns to the display device  40 , the display device  40  displays the images with different driving voltages. A step-by-step driving method is utilized for modulating the drive voltage of the displayed images. For example, when the pattern generator  32  outputs a first image pattern to the display device  40 , the driving voltage is 0 volt (an initial value); after the image extraction device  30  extracts the image extraction signal, 0.1 volt is added to the driving voltage each time to display the image until the driving voltage reaches 0.7 volt (the maximum value). However, the range of modulation of the driving voltage may vary based on the demand of the user.  
         [0026]     Step S 45 : increasing the driving voltage of the displayed image. The driving voltage of the displayed image is increased as described in step S 44 .  
         [0027]     Step S 46 : changing the image pattern. Since the displayed images of this embodiment are a red block, a green block, a blue block and white block sequentially. If the displayed image corresponding to the red block at 0.7 volt, the pattern generator  32  outputs the next image pattern to the display device  40 , then the display device  40  drives the displayed image corresponding to the green block at 0 volt, and so on.  
         [0028]     Step S 47 : determining whether the color data corresponds to a white block; if it does, step S 48  is performed. Since this embodiment considers the white block as an indicator to stop the procedure of the color data process, the CPU  12  must analyze the color data to determine whether or not to proceed the color data process.  
         [0029]     Step S 48 : transforming the color data into the color-real parameters. According to a predetermined transformation formula, each set of color data can be transformed into color-real parameters.  
         [0030]     Step S 49 : storing the color-real parameters in the memory  46  of the display device  40 . The burner  34  burns the color-real parameters into the memory  46  of the display device  40 . Afterwards, the microprocessor  42  drives the display panel  44  according to the color-real parameters. Since the color-real parameters match the color-real standard, the colors of displayed images also match the color-real standard. Therefore, each display device displays the same product with the same colors. The color-real parameters are stored in the EDID.  
         [0031]     After the display device  40  has accomplished modification of the color-real parameters, a user can use a method of color-real examination for examining a display device of the present invention to examine the color of the displayed image on the display device  40 . Since the method of real-color examination for examining a display device of the present invention is similar to the method of color-real adjustment for adjusting a display device of the present invention, only the differences will be described in detail as followings:  
         [0032]     Step S 50 : initiating. The server  10  outputs a reset signal to initiate the image extraction device  30  and the pattern generator  32 .  
         [0033]     Step S 51 : outputting an image pattern to a display device  40 . Step S 52 : extracting color data according to a displayed image.  
         [0034]     Step S 53 : determining whether the driving voltage of the displayed image is a maximum value; if it is, step S 55  is performed.  
         [0035]     Step S 54 : increasing the driving voltage of the displayed image. Step S 55 : changing the displayed image.  
         [0036]     Step S 56 : determining whether the color data corresponds to a white block; if it does, step S 57  is performed.  
         [0037]     Step S 57 : transforming the color data into color-real parameters.  
         [0038]     Step S 58 : determining whether the color-real parameters are identical with predetermined color-real parameters; if they are, step S 60  is performed. Since the memory  46  of the display device  40  stores a set of color-real parameters (the predetermined color-real parameters), when the Step S 57  is accomplished, the CPU  12  obtains another set of color-real parameters and compares this set of color-real parameters with the predetermined color-real parameters. If these two sets of color-real parameters are identical (or under a predetermined error tolerance), the colors of the displayed image of the display device  40  match the color-real standard, therefore step S 60  is performed; otherwise, step S 59  is performed.  
         [0039]     Step S 59 : displaying an error message. The monitor  20  can be used to display an error message or a pass message to tell the engineer or examiner the result of Step S 58 . If the set of color-real parameters is different from the predetermined set of color-real parameters, then this indicates that the colors of the displayed images are incorrect or the display device  40  is a defective product that is incapable of showing correct colors. Afterwards, a technician of examiner can repair the display device  40  according to the error message display on the monitor  20 .  
         [0040]     Step S 60 : end.  
         [0041]     The present invention discloses a method of color-real adjustment for a display device and a system of color-real adjustment for a display device to drive the display device matching the color-real standard, and stores the color-real parameters into the display device  40 .  
         [0042]     Additionally, a method of color-real examination for a display device can be used for examining the colors displayed on the display device  40  to ensure the colors of the displayed images match the color-real standard.  
         [0043]     Although the present invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.