CN201170819Y - System for detecting and positioning bad point of panel of flat display - Google Patents

Abstract

The utility model relates to a flat display panel dead pixel detection and positioning system, it is used for detecting and addressing the dead pixel on a liquid crystal display panel, it contains an image acquisition device that has the addressing function, a signal input device that provides the signal and make this liquid crystal display panel show the dead pixel, a screen that shows this image acquisition device and a pointer displacement device that shows on this screen and can calculate the positional information who obtains this image acquisition device relatively, this liquid crystal display panel sets up two at least punctuations, in order to snatch the punctuation and calculate the accurate position who obtains liquid crystal display panel through removing the image acquisition device, and remove again and let the dead pixel show on this screen, can mark the dead pixel and obtain the position of dead pixel and take notes through this pointer displacement device.

Description

Flat panel display panel dead point detection and positioning system

technical field

The utility model relates to a panel of a flat display, in particular to a dead point detection and positioning system of the panel of the flat display.

Background technique

A flat panel display can be composed of a liquid crystal display panel. The liquid crystal display panel is mainly composed of a glass substrate, a polarizer, a transparent electrode, an alignment film, a liquid crystal film, and a color filter. During the manufacturing process, the liquid crystal display panel is very easy to A few flaws on the liquid crystal film cause some sub-pixels (Sub-pixl) in the liquid crystal film to be unable to be effectively controlled, resulting in the formation of so-called dead pixels, which cause bright spots to be formed on the display of the flat-panel display, and seriously affect the display quality of the flat-panel display. .

At present, it is possible to change the driving parameters through the control of the driver, so that the dead pixels (bright spots) are not easily found by the user during the use of the flat-panel display. In order to change the driving parameters, it is necessary to determine which sub-pixels in the LCD panel are Therefore, it is necessary to detect the dead pixels in the liquid crystal display panel and address and mark them, so that the driver can change the driving parameters so that the dead pixels are not easy to be found.

Utility model content

Therefore, the main purpose of the present invention is to provide a system capable of detecting and addressing dead pixels, so as to mark and address the dead pixels in the liquid crystal display panel.

As can be seen from the above, in order to achieve the above object, the utility model provides a flat panel display panel dead point detection and positioning system for detecting and addressing the dead point on the liquid crystal display panel, which includes an image capture device with addressing function, a signal Input device, screen and pointer displacement device, wherein the liquid crystal display panel is provided with at least two punctuation points, the liquid crystal display panel is set corresponding to the image capture device, and the image capture device captures the punctuation points to calculate and obtain the liquid crystal display panel The precise position of the signal input device is connected with the liquid crystal display panel, and provides a signal to make the liquid crystal display panel display the dead point, and the screen is used to display the image of the image capture device, and the image capture device can be moved to make the bad point Points are displayed on the screen, and the pointer displacement device is displayed on the screen, and the position information relative to the image capture device can be calculated to obtain the dead point by marking the dead point through the pointer displacement device location is recorded.

According to it, it can be obtained by positioning the liquid crystal display panel, making the liquid crystal display panel display dead pixels, moving the image capture device with addressing function to display the dead pixels on the screen, and moving the pointer displacement device to the center of the dead pixels to mark the calculation. The precise position of the dead point, displaying the calculated bad point position and recording it after confirmation can mark and address the dead point in the liquid crystal display panel.

Description of drawings

FIG. 1 is a schematic diagram of the appearance of a liquid crystal display panel of the present invention.

Fig. 2 is a device structure diagram of the present utility model.

Fig. 3 is another perspective view of the device structure of the present invention.

FIG. 4 is a schematic diagram of the field of view screen of the liquid crystal display panel captured by the image capture device of the present invention.

Detailed ways

In order to have a deeper understanding and recognition of the features, purposes and effects of the present utility model, the preferred embodiments are listed and illustrated in conjunction with schematic diagrams as follows:

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a flat panel display panel dead point detection and positioning system of the present invention is used to detect and address a dead point 12 on a liquid crystal display panel 10, which includes a An image capture device 20 with addressing function, a signal input device 25 that provides signals to make the liquid crystal display panel 10 display dead pixels 12, a screen 30 that displays images captured by the image capture device 20, and a display on the screen The pointer displacement device 31 on the 30 can calculate and obtain the position information relative to the image capture device 20 .

Wherein, at least two punctuation points 11 are set on the liquid crystal display panel 10, and the two punctuation points 11 can be arranged at the outer edge of the liquid crystal display panel 10, wherein four corners of the liquid crystal display panel 10 are respectively provided with a cross mark as the Marking points 11 are the best implementation mode (as shown in FIG. 1 ), so the precise position of the liquid crystal display panel 10 can be calculated by moving the image capture device 20 to any two marking points 11 .

The signal input device 25 provides a signal to make the liquid crystal display panel 10 display the dead pixels 12 , the display signal is a general signal, and its purpose is to let the liquid crystal display panel 10 display where the dead pixels 12 are.

After the bad spots 12 are displayed, the image capture device 20 with addressing function can be moved manually and semi-automatically, so that the bad spots 12 enter the field of vision of the image capture device 20 and are displayed on the screen 30 .

In order to make the image capture device 20 have an addressing function, the image capture device 20 of the present utility model can be arranged on a first linear displacement device 40, and the first linear displacement device 40 is provided with a sensor for sensing the image capture The first optical ruler 60 at the position of the device 20, and the first linear displacement device 40 is stacked on a second linear displacement device 50, and the second linear displacement device 50 is provided with a first sensor for sensing the position of the first linear displacement device 40 Two optical rulers 70, and the second linear displacement device 50 and the first linear displacement device 40 form an angle, so that the image capture device 20 can pass through the first optical ruler 60 and the second optical ruler 70 The perceived position and the included angle can be calculated and addressed, that is, the image capture device 20 can know its precise position.

The aforementioned preferred embodiment is that the second linear displacement device 50 may include a first bracket 51 and a second bracket 52 arranged at a distance from each other, and the first bracket 51 and the second bracket 52 are separated by the same driver ( (not shown) drive a first linear motor moving device 53 and a second linear motor moving device 54, and allow the first linear motor moving device 53 and the second linear motor moving device 54 to have synchronism, and The first linear displacement device 40 includes a support frame 41 with two ends erected on the first linear motor moving device 53 and the second linear motor moving device 54, so that the first linear displacement device 40 can be relatively opposite to the second linear displacement device 40. The linear displacement device 50 is displaced, and the support frame 41 is provided with a ball screw 42, the ball screw 42 is driven by a motor 43 and fits a screw seat 44, and the image capture device 20 is arranged on the screw seat 44, so The image capture device 20 can be displaced relative to the first linear displacement device 40, and the operator only needs to operate and control the driver and the motor 43 to change the position of the image capture device 20 so that the dead pixel 12 is in the screen 30 display.

Next, when the dead point 12 is displayed on the screen 30, manually move the pointer displacement device 31 to the center of the bad point 12 and mark it, then the liquid crystal display panel 10 and the image capture device 20 can be obtained according to the foregoing. The precise position and the current position information of the pointer displacement device 31 relative to the image capture device 20 can be used to calculate the precise position of the dead pixel 12 .

And in order to determine the dead point 12 selected to the correct position, the utility model allows the screen 30 to display the calculated bad point 12 position, and it can display the calculated bad point 12 position on the screen 30 by marking with color and outer frame 32 The position of point 12 is convenient for identification, and it can be recorded after confirmation by the operator.

As mentioned above, the utility model provides a dead point detection and addressing system, which can mark and address the dead point 12, so that the bad point 12 can be difficult to be found by changing the driving parameters of the driver, and the display of the liquid crystal display panel 10 can be improved. quality.

Claims (5)

1. A flat display panel dead point detection and positioning system is used to detect and address the dead point (12) on the liquid crystal display panel (10), and the liquid crystal display panel (10) is provided with at least two punctuation points (11), It is characterized in that it contains: An image capture device (20) with an addressing function, the liquid crystal display panel (10) is set corresponding to the image capture device (20), and the image capture device (20) captures the punctuation point (11) and calculating the precise position of the liquid crystal display panel (10); A signal input device (25), the signal input device (25) is connected to the liquid crystal display panel (10), and provides a signal to make the liquid crystal display panel (10) display dead pixels; A screen (30), the screen (30) is used to display the image of the image capture device (20), and the image capture device (20) can be moved so that the dead point (12) is on the screen ( 30) is displayed; and A pointer displacement device (31), the pointer displacement device (31) is displayed on the screen (30), and can calculate and obtain position information relative to the image capture device (20), so as to pass through the pointer displacement device (31) Marking the dead point (12) and calculating and obtaining the position of the dead point (12) for recording. 2. The flat-panel display panel dead point detection and positioning system according to claim 1, characterized in that, the two punctuation points (11) are arranged at the outer edge of the liquid crystal display panel (10). 3. flat-panel display panel dead point detection and positioning system according to claim 1, is characterized in that, described image capturing device (20) is arranged on the first linear displacement device (40), and described first linear displacement The device (40) is provided with a first optical scale (60) for sensing the position of the image capture device (20), the first linear displacement device (40) is stacked on the second linear displacement device (50), and the The second linear displacement device (50) is provided with a second optical ruler (70) that perceives the position of the first linear displacement device (40), and the second linear displacement device (50) is connected to the first linear displacement device (40) form an included angle, and the image capture device (20) can be calculated by the perception position of the first optical ruler (60) and the second optical ruler (70) and the included angle. Addressing. 4. flat-panel display panel dead point detection and positioning system according to claim 3, is characterized in that, described second linear displacement device (50) comprises the first bracket (51) and the second bracket that a distance is arranged relative to each other (52), the first support (51) and the second support (52) are separately provided with a first linear motor moving device (53) and a second linear motor moving device (54) driven by the same driver, the The first linear displacement device (40) comprises a support frame (41) erected at both ends of the first linear motor movement device (53) and the second linear motor movement device (54), the support frame (41) A ball screw (42) is provided, the ball screw (42) is driven by a motor (43) and fits into a screw seat (44), and the image capture device (20) is arranged on the screw seat (44). 5. The flat-panel display panel dead point detection and positioning system according to claim 1, characterized in that, the screen (30) is displayed on the screen (30) in a manner marked by color and frame (32). The location of dead pixels (12).

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