CN110853557A - FPGA-based liquid crystal module bomb inspection system and inspection method - Google Patents
FPGA-based liquid crystal module bomb inspection system and inspection method Download PDFInfo
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- CN110853557A CN110853557A CN201911170916.0A CN201911170916A CN110853557A CN 110853557 A CN110853557 A CN 110853557A CN 201911170916 A CN201911170916 A CN 201911170916A CN 110853557 A CN110853557 A CN 110853557A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0278—Detecting defects of the object to be tested, e.g. scratches or dust
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
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Abstract
The invention discloses a liquid crystal module group bomb inspection system and method based on FPGA, which comprises a bomb mounting and dismounting control module, a source image output module, a bomb generating module, a bomb area control module, an image time sequence generating module, a bomb type control module, a clock module and an image superposition module; the bomb installation and removal control module is used for installing and removing the system; the image time sequence generating module is used for generating a time sequence control signal, and the clock module is used for providing clock frequency; the image superposition module is used for judging whether the current display coordinate is a superposition area of the bomb generating module and the display image, and the invention can realize that when the FPGA is used as a main control chip to display the image on the liquid crystal module to be tested, different bomb signals can be superposed and displayed on the liquid crystal module to be tested in real time, an operator needs to perform careful detection to remove the bomb, and the test efficiency, the test reliability and the user experience are improved.
Description
Technical Field
The invention relates to the technical field of display and test of liquid crystal modules, in particular to a liquid crystal module bomb inspection system and method based on an FPGA (field programmable gate array).
Background
The liquid crystal module has the advantages of lightness, thinness, low power consumption, small radiation, no screen flicker, rich colors and the like, and is widely used for various mobile phone screens, tablet computer screens, notebook computer screens and other electronic equipment at present; configuration testing before the liquid crystal module leaves factory is an important link, wherein point screen testing before the liquid crystal module leaves factory is an important link, and defects such as bad spots, bright spots, bad lines and the like which may appear on the liquid crystal module to be tested can be detected through the point screen testing before the liquid crystal module leaves factory; the operator needs to switch different pictures ceaselessly to detect the liquid crystal module to be detected through eyesight, the operator needs to use the pictures to detect a plurality of liquid crystal modules every day, the operator possibly has visual fatigue and does not carefully detect the liquid crystal module to cause the defective liquid crystal module to flow into a normal module for sale, and therefore, the product quality and the credit of a liquid crystal module manufacturer are influenced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a liquid crystal module bomb inspection system and inspection method based on FPGA, wherein a production line engineer randomly adds the FPGA-based liquid crystal module bomb inspection system to a picture of a liquid crystal module to be inspected in advance in liquid crystal module inspection software, and when an operator switches to a picture of a pre-embedded bomb system during the process of inspecting the liquid crystal module to be inspected, if the operator switches to the next picture due to lack of visual fatigue and the visual fatigue is seriously detected, a warning is generated and the warning is uploaded to a production line operation server to be recorded, so that the operator can seriously inspect each picture, thereby improving the inspection efficiency and the inspection reliability, and improving the production efficiency and the product qualification rate of enterprises.
In order to achieve the purpose, the invention provides the following technical scheme: a liquid crystal module group bomb inspection system based on FPGA comprises a bomb installation and removal control module, a source image output module, a bomb generation module, a bomb area control module, an image time sequence generation module, a bomb type control module, a clock module and an image superposition module; the bomb mounting and dismounting control module is used for mounting and dismounting the system; the system comprises a source image output module, a bomb generation module, a bomb area control module, a bomb type control module, an image time sequence generation module and a clock module, wherein the source image output module is used for outputting image data which accords with the specification of a current liquid crystal module to be tested; the image superposition module is used for judging whether the current display coordinate is a superposition area of the bomb generating module and the display image; the liquid crystal module displays the data output by the image superposition module as corresponding images.
Preferably, the bomb installation and removal control module is used for controlling installation and removal of the FPGA-based liquid crystal module bomb inspection system.
Preferably, the bomb generating module generates a bomb signal required by a user in any area of the liquid crystal module according to the bomb area control module and the bomb type control module; the bomb area control module is used for generating an area range control signal in the current liquid crystal module to be tested, and the image time sequence generation module comprises a line counter and a field counter and generates a corresponding time sequence control signal according to the liquid crystal module time sequence specification.
Preferably, the bomb type control module comprises a bomb type selection control; the clock module generates a pixel clock by an external clock chip according to the time sequence information of the liquid crystal module, wherein the pixel clock provides clock frequency for the bomb installation and removal control module, the source image output module, the bomb generation module, the bomb area control module, the image time sequence generation module, the bomb type control module, the clock module, the image superposition module and the liquid crystal module.
Preferably, the image superimposing module is configured to determine whether the current display coordinate is in a superimposition area of the bomb generating module and the display image, and if the current display coordinate is in the superimposition area of the display image, determine whether data corresponding to the current coordinate is original image data or data of a bomb signal generated in the bomb generating module, and if the current display coordinate is data of the bomb signal, output data of the image superimposing module is data of the bomb signal generated in the bomb generating module; if the data is not the data of the bomb signal, the image data output by the source image output module is output by the image superposition module.
The invention also provides a liquid crystal module bomb inspection method based on the FPGA, which comprises the following steps:
step (1): starting a bomb installation and removal control module, and equally dividing the bomb installation and removal control module into n rectangular or square areas according to the specification size of the resolution of the liquid crystal module to be tested, wherein n is a natural number;
step (2): generating a pixel clock corresponding to the liquid crystal module to be tested according to the time sequence information of the liquid crystal module to be tested through an external clock chip, and outputting the pixel clock to a bomb installation and removal control module, a source image output module, a bomb generation module, a bomb area control module, an image time sequence generation module, a bomb type control module, a clock module, an image superposition module and the liquid crystal module;
and (3): starting to count circularly according to the pixel clock through a line counter and a field counter in the image time sequence generation module to generate a time sequence control signal corresponding to the time sequence specification of the liquid crystal module to be detected;
and (4): based on the bomb type control module, according to the counter, the counting value of the counter is combined with the timing sequence standard chart of the liquid crystal module to be tested to calculate the origin point coordinate of the current moment;
and (5): and judging whether the current display coordinate is a superposition area of the bomb generating module and the display image based on the image superposition module.
Preferably, the step (4) comprises: the bomb type control module outputs information of coordinates, colors and lengths of the bomb signals to the bomb generation module to generate bomb enabling signals and bomb signals; and the step (5) further comprises: if the image is displayed in the superposition area, judging whether the data corresponding to the current coordinate is original image data or data of a bomb signal generated in the bomb generating module according to the bomb enabling signal data, if the data is the data of the bomb signal, outputting the data output by the image superposition module as the data of the bomb signal generated in the bomb generating module, and outputting the bomb signals with different colors and different sizes according to the color and the length of the bomb signal given by the bomb type control module; if the data is not the data of the bomb signal generated in the bomb generating module, the image data output by the source image output module is output by the image overlaying module, and the image is displayed in the liquid crystal module.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, when the FPGA is used as the main control chip to display an image on the liquid crystal module to be tested, different bomb signals can be superposed and displayed on the liquid crystal module to be tested in real time, and an operator needs to carefully detect to remove the bomb, so that the testing efficiency, the testing reliability and the user experience are improved.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal module bomb inspection system based on an FPGA in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the liquid crystal module bomb inspection system based on FPGA provided by the invention comprises a bomb installation and dismantling control module 1, a source image output module 2, a bomb generation module 3, a bomb region control module 4, an image time sequence generation module 5, a bomb type control module 6, a clock module 7, an image superposition module 8 and a liquid crystal module 9, wherein the bomb installation and dismantling control module 1 controls the installation and dismantling work of the liquid crystal module bomb inspection system based on FPGA; the image timing sequence generation module 5 comprises a line counter and a field counter, generates corresponding timing sequence control signals according to the liquid crystal module timing sequence specification, and the bomb type control module 6 comprises bomb type selection control, such as a horizontal straight line, a vertical straight line, an oblique line, a dot matrix and the like; the system also comprises a position coordinate of a bomb signal, color control, length and the like, wherein the clock module 7 generates a pixel clock by an external clock chip according to the time sequence information of the liquid crystal module, and the pixel clock provides clock frequency for the bomb installation and removal control module 1, the source image output module 2, the bomb generation module 3, the bomb area control module 4, the image time sequence generation module 5, the bomb type control module 6, the clock module 7, the image superposition module 8 and the liquid crystal module 9;
the image superposition module 8 is configured to determine whether the current display coordinate is a superposition area of the bomb generation module 3 and the display image, determine whether data corresponding to the current coordinate is original image data or data of a bomb signal generated in the bomb generation module 3 if the current display coordinate is the superposition area of the display image, and if the current display coordinate is the data of the bomb signal, output data of the image superposition module 8 is data of the bomb signal generated in the bomb generation module 3; if the data is not the data of the bomb signal, the image data output by the source image output module 2 is output by the image superposition module 8; the liquid crystal module 9 displays the data output from the image superimposing module 8 as a corresponding image.
Based on the system, the FPGA-based liquid crystal module bomb inspection system is randomly added to the picture of the liquid crystal module to be detected in advance by a production line technical engineer, and when an operator switches to the picture of the pre-buried bomb system in the process of detecting the liquid crystal module to be detected, if the operator does not carefully detect the visual fatigue and switches to the next picture, the bomb system gives an alarm and uploads the alarm to the production line operation server to record, so that the impact is caused to the operator, the operator can carefully detect each picture, the test efficiency and the test reliability are improved, and the production efficiency and the product qualification rate of enterprises are improved.
Further, the invention also comprises a liquid crystal module bomb inspection method based on FPGA, which specifically comprises the following steps:
step (1): opening a bomb system installation enable according to a bomb installation and dismantling control module, and equally dividing the bomb system installation enable into n (n is a natural number) rectangular or square areas according to the resolution specification size of the liquid crystal module to be detected;
step (2): the external clock chip generates a pixel clock corresponding to the liquid crystal module to be detected according to the time sequence information of the liquid crystal module to be detected and outputs the pixel clock to the bomb installation and removal control module, the source image output module, the bomb generation module, the bomb area control module, the image time sequence generation module, the bomb type control module, the clock module, the image superposition module and the liquid crystal module;
and (3): a line counter and a field counter in the image time sequence generation module start to count circularly according to the pixel clock generated in the step (2) to generate a time sequence control signal of the corresponding liquid crystal module to be tested with standard time sequence;
and (4): the bomb type control module calculates the origin coordinate of the current moment according to the counter in the step (3) by combining the count value of the counter and the timing sequence standard chart of the liquid crystal module to be tested, and outputs information of the bomb type control module to the bomb generation module according to the coordinate, color and length of the bomb signal to generate a bomb enabling signal and a bomb signal;
and (5): the image superposition module judges whether the current display coordinate is a superposition area of the bomb generating module and the display image, if so, the data corresponding to the current coordinate is judged to be original image data or data of a bomb signal generated in the bomb generating module according to the bomb enabling signal data in the step (4), if so, the data output by the image superposition module is the data of the bomb signal generated in the bomb generating module, and bomb signals with different colors and different sizes are output according to the color and the length of the bomb signal given by the bomb type control module in the step (4); if the data of the bomb signal generated in the bomb generating module is not the data of the bomb signal generated in the bomb generating module, the image data output by the source image output module is output by the image overlaying module, and finally the image is displayed in the liquid crystal module. According to the invention, when the FPGA is used as the main control chip to display the image on the liquid crystal module, the bomb signal can be superposed on the image to be displayed, so that when the FPGA is used as the main control chip to display the image on the liquid crystal module to be tested, different bomb signals can be superposed and displayed on the liquid crystal module to be tested in real time, an operator needs to carefully detect to remove the bomb, and the test efficiency, the test reliability and the user experience are improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a liquid crystal module bomb inspection system based on FPGA which characterized in that: the system comprises a bomb installation and dismantling control module, a source image output module, a bomb generation module, a bomb region control module, an image time sequence generation module, a bomb type control module, a clock module and an image superposition module; the bomb mounting and dismounting control module is used for mounting and dismounting the system; the system comprises a source image output module, a bomb generation module, a bomb area control module, a bomb type control module, an image time sequence generation module and a clock module, wherein the source image output module is used for outputting image data which accords with the specification of a current liquid crystal module to be tested; the image superposition module is used for judging whether the current display coordinate is a superposition area of the bomb generating module and the display image.
2. The FPGA-based liquid crystal module bomb inspection system of claim 1, wherein; the liquid crystal module displays the data output by the image superposition module as corresponding images.
3. The FPGA-based liquid crystal module bomb inspection system of claim 2, wherein the bomb installation and removal control module is used for controlling the installation and removal of the FPGA-based liquid crystal module bomb inspection system.
4. The FPGA-based LCD module bomb test system of claim 3, wherein the bomb generating module generates the bomb signal required by the user in any area of the LCD module according to the bomb area control module and the bomb type control module.
5. The FPGA-based liquid crystal module bomb inspection system of claim 4, wherein the bomb region control module is used for generating a region range control signal at a current liquid crystal module under test.
6. The FPGA-based liquid crystal module bomb inspection system of claim 5, wherein the image timing generation module comprises a line counter and a field counter, and generates corresponding timing control signals according to liquid crystal module timing specifications.
7. The FPGA-based liquid crystal module bomb inspection system of claim 6, wherein the bomb type control module includes a bomb type selection control; the clock module generates a pixel clock by an external clock chip according to the time sequence information of the liquid crystal module, wherein the pixel clock provides clock frequency for the bomb installation and removal control module, the source image output module, the bomb generation module, the bomb area control module, the image time sequence generation module, the bomb type control module, the clock module, the image superposition module and the liquid crystal module.
8. The FPGA-based liquid crystal module bomb detecting system of claim 7, wherein the image overlaying module is configured to determine whether the current display coordinates are in an overlay area of the bomb generating module and the display image, and specifically includes, if the current display coordinates are in the overlay area of the display image, determining whether data corresponding to the current coordinates are original image data or data of a bomb signal generated in the bomb generating module, and if the current display coordinates are data of the bomb signal, outputting data of the bomb signal generated in the bomb generating module by the image overlaying module; if the data is not the data of the bomb signal, the image data output by the source image output module is output by the image superposition module.
9. A liquid crystal module bomb inspection method based on FPGA is characterized in that: the method comprises the following steps:
step (1): starting a bomb installation and removal control module, and equally dividing the bomb installation and removal control module into n rectangular or square areas according to the specification size of the resolution of the liquid crystal module to be tested, wherein n is a natural number;
step (2): generating a pixel clock corresponding to the liquid crystal module to be tested according to the time sequence information of the liquid crystal module to be tested through an external clock chip, and outputting the pixel clock to a bomb installation and removal control module, a source image output module, a bomb generation module, a bomb area control module, an image time sequence generation module, a bomb type control module, a clock module, an image superposition module and the liquid crystal module;
and (3): starting to count circularly according to the pixel clock through a line counter and a field counter in the image time sequence generation module to generate a time sequence control signal corresponding to the time sequence specification of the liquid crystal module to be detected;
and (4): based on the bomb type control module, according to the counter, the counting value of the counter is combined with the timing sequence standard chart of the liquid crystal module to be tested to calculate the origin point coordinate of the current moment;
and (5): and judging whether the current display coordinate is a superposition area of the bomb generating module and the display image based on the image superposition module.
10. The FPGA-based liquid crystal module bomb inspection method according to claim 9, wherein the step (4) comprises: the bomb type control module outputs information of coordinates, colors and lengths of the bomb signals to the bomb generation module to generate bomb enabling signals and bomb signals; and the step (5) further comprises: if the image is displayed in the superposition area, judging whether the data corresponding to the current coordinate is original image data or data of a bomb signal generated in the bomb generating module according to the bomb enabling signal data, if the data is the data of the bomb signal, outputting the data output by the image superposition module as the data of the bomb signal generated in the bomb generating module, and outputting the bomb signals with different colors and different sizes according to the color and the length of the bomb signal given by the bomb type control module; if the data is not the data of the bomb signal generated in the bomb generating module, the image data output by the source image output module is output by the image overlaying module, and the image is displayed in the liquid crystal module.
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