CN106353900A - Image signal generation method and device with coordinate acquisition function - Google Patents
Image signal generation method and device with coordinate acquisition function Download PDFInfo
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- CN106353900A CN106353900A CN201610763802.7A CN201610763802A CN106353900A CN 106353900 A CN106353900 A CN 106353900A CN 201610763802 A CN201610763802 A CN 201610763802A CN 106353900 A CN106353900 A CN 106353900A
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Abstract
The invention discloses an image signal generation method and device with a coordinate acquisition function, and relates to the technical field of display panel detection. The method includes the steps: S1) acquiring vertical line position indication signals and horizontal line position indication signals according to resolution ratio configuration information and (X, Y) coordinate configuration information; S2) acquiring cross line coordinate point information according to the vertical line position indication signals and the horizontal line position indication signals, and configuring RGB (red green blue) values of a cross line coordinate point; S3) correspondingly distributing the RGB values of the cross line coordinate point to RGB image data of links to obtain cross line image signals. The cross line image signals with real-time configurable color and center point coordinates are generated, an optical calibrator can be assisted in visually and rapidly acquiring coordinate information of defect points or defect areas of a display panel to be detected, and a laser repair machine can be assisted in improving the bright spot and dark spot repair efficiency of the display panel.
Description
Technical Field
The invention relates to the technical field of display panel detection, in particular to an image signal generation method and device with a coordinate acquisition function.
Background
The novel display panels such as TFT-LCD and OLED have the advantages of high resolution, high brightness, no geometric deformation, etc., and are widely used in consumer electronics products such as televisions, computers, mobile phones, flat panels, etc. because of their small size, light weight and low power consumption. The manufacturing process of the novel display panels such as TFT-LCD, OLED and the like is complex, a hundred-level or even ten-level clean room, nanoscale size control precision and 6N-level (99.9999%) high-purity materials are required, so that the pixel structure abnormity is inevitably introduced in the manufacturing process, and the display defect is formed seriously. Dividing according to display effects, wherein the display defects are mainly divided into line defects and point defects, the line defects are usually caused by TCP (Tape Carrier Package) cutting and TCP-Bonding, and the production equipment needs to be readjusted; the point defect is generally called a dead spot, and is actually divided into a bright spot (including a white spot, a red spot, a green spot, and a blue spot), a dark spot, a cluster, and a blurred spot, wherein the bright spot and the dark spot account for more than 95%. Due to the rapid development of novel display technologies, display panel manufacturers are increasingly competitive at present, the production value and profit of each panel manufacturer is less than 10%, and the panel manufacturers can generate million dollar income and the importance of bright spot and dark spot repair is self-evident when the yield is improved by 1%.
The laser repairing machine can be used for repairing bright spots and dark spots of novel display panels such as TFT-LCDs and OLEDs, but before repairing, defect positions and defect details need to be determined by the optical calibrator, focusing of the optical calibrator on the defect positions is an important and indispensable step, micrometer-level units can be observed by the optical calibrator, the precision is high, and the visual field range is small. At present, the optical calibrator mainly adopts a mode of moving a lens picture on a display panel to focus on the defect position of the display panel to search for a defect point, and the focusing mode has large workload and low efficiency.
Disclosure of Invention
In view of the above deficiencies of the prior art, the present invention discloses an image signal generating method and apparatus with a coordinate acquiring function, for acquiring coordinate information of a defect point or a defect area of a display panel to be measured.
In order to achieve the above object, the present invention provides an image signal generating method with a coordinate acquiring function, for acquiring coordinate information of a defect point or a defect area of a display panel to be measured, the method comprising the steps of:
s1) obtaining a vertical line position indication signal and a horizontal line position indication signal according to the resolution configuration information and the (X, Y) coordinate configuration information;
s2) obtaining cross line coordinate point information according to the vertical line position indication signal and the horizontal line position indication signal, and configuring RGB values of the cross line coordinate points;
s3) assigning the RGB values of the reticle coordinate points to RGB image data of each link, thereby obtaining a reticle image signal.
As a further optional technical solution, step S1 in the above solution includes the following steps:
s11) the time sequence signals of each link are processed synchronously according to the resolution configuration information, and the horizontal effective data length and the vertical effective data length of each link are analyzed according to the resolution configuration information;
s12) according to the time sequence signal after the synchronous processing, the horizontal effective data length and the vertical effective data length are counted to obtain the horizontal effective data information and the vertical effective data information of each link;
s13) obtaining the vertical line position indication signal and the horizontal line position indication signal according to the horizontal effective data information, the vertical effective data information and the (X, Y) coordinate arrangement information.
As a further optional technical solution, step S2 in the above solution further includes the following steps:
if the vertical line position indication signal is valid and the horizontal line position indication signal is invalid, selecting the X-th row coordinate point indicated by the vertical line position indication signal;
if the vertical line position indication signal is invalid and the horizontal line position indication signal is valid, the Y-th coordinate point indicated by the horizontal line position indication signal is selected.
As a further optional technical solution, the selecting the X-th column coordinate point indicated by the vertical line position indication signal in the above solution includes the following steps:
if each link is 1link, selecting the X-th row coordinate point indicated by the vertical line position indication signal;
if the links are multiple links, the vertical line position indication signal indicates a plurality of coordinate points with the same number as the links, and a corresponding coordinate point is selected from the coordinate points according to the binary value of the X coordinate value.
As a further optional technical solution, step S2 in the above solution further includes the following steps:
if the vertical line position indication signal is valid and the horizontal line position indication signal is valid, the RGB values of the corresponding coordinate point in the RGB image data are displayed at the (X, Y) coordinate point.
As a further optional technical solution, step S2 in the above solution further includes the following steps:
the data enable signals of the vertical line position indication signal and the horizontal line position indication signal are synchronously received, and the cross line data enable signal is generated.
As a further optional technical solution, step S3 in the above solution further includes the following steps:
and correspondingly distributing the reticle data enabling signal and the RGB value of the reticle coordinate point to the RGB image data of each link to obtain the reticle image signal.
As a further optional technical solution, in the above solution, in step S2, the (X, Y) coordinate configuration information is configured by the upper computer, and the (X, Y) coordinate configuration information is adjusted by a mouse or a key.
As a further optional technical solution, in the above scheme, the cross-line image signal is converted into an image signal format that can be identified BY the display panel to be tested, such as HDMI, TTL, LVDS, DP, MIPI, or V-BY-ONE.
The invention also provides an image signal generating device with a coordinate acquiring function, which is used for acquiring the coordinate information of the defect point or defect area of the display panel to be detected and comprises an upper computer, and a cross line coordinate configuration module, a cross line generating module and a cross line image synchronous combination module which are arranged in a programmable logic device; wherein,
the cross line coordinate configuration module is used for obtaining a vertical line position indication signal and a horizontal line position indication signal according to the resolution configuration information and the (X, Y) coordinate configuration information;
the cross line generating module is used for obtaining cross line coordinate point information according to the vertical line position indicating signal and the horizontal line position indicating signal and receiving cross line color configuration information to configure an RGB value of the cross line coordinate point;
the reticle image synchronous combination module is used for correspondingly distributing the RGB values of the reticle coordinate points to the RGB image data of each link to obtain reticle image signals;
the upper computer is used for providing the resolution configuration information, (X, Y) coordinate configuration information and the cross line color configuration information.
As a further optional technical solution, in the above solution, the programmable logic device further includes:
and the cross line gating module is used for synchronously receiving the data enabling signals of the vertical line position indicating signal and the horizontal line position indicating signal and generating a cross line data enabling signal.
The reticle image synchronous combination module is also used for correspondingly distributing the reticle data enabling signal to each link of the reticle image signal.
The invention has the following advantages:
1) the method adopts a mode of embedding the cross line in the image test picture transmitted to the display panel to be tested, the central point coordinate of the cross line can be configured or adjusted in real time by input equipment such as a key or a mouse of an upper computer, so that the cross line can move in the image test picture on the display panel to be tested as required, and the central point coordinate of the cross line is displayed on the upper computer in real time, thereby acquiring the coordinate information of the defect point or the defect area of the display panel to be tested in real time; the central point of the cross line is not covered by the cross line, or the background color of the image test picture is displayed, so that whether the central point is a bright point, a dark point or no defect point can be conveniently observed;
2) according to the invention, each line of the reticle can be opened or closed by configuring the data enable signal of the reticle, so that the optical calibrator can conveniently focus and observe the defect position; the color of the cross line can be configured by the upper computer, and when the bright point and the dark point of the display panel to be detected are locked, the coordinate positions of the bright point and the dark point can be better determined by improving the color difference and the contrast between the bright point and the dark point and the background color of a display picture and the color of the cross line, so that the laser repairing machine can be assisted to improve the repair efficiency of the bright point and the dark point of the display panel;
3) the cross-line image signal generated BY the invention can be converted into image signal formats such as HDMI, TTL, LVDS, DP, MIPI or V-BY-ONE which can be identified BY the display panel to be detected through the existing image signal source or image signal adapter; the invention can support LVDS image signals with link numbers (link numbers) such as 1link, 2link, 4link, 8link, 16link … and the like, the supported resolution is determined by the configured link numbers, and the supported resolution of the 1link is 1920 × 1080 and the refresh rate of 60 Hz; the resolution that 2 links can support is a 1920 × 1080,120Hz refresh rate; the resolution that 4 links can support is 3840 × 2160,60Hz refresh rate; the resolution that 8 links can support is 3840 × 2160,120Hz refresh rate; the resolution that 16 links can support is 7680 x 4320,60Hz refresh rate.
Drawings
FIG. 1 is a flow chart of the image signal generation with coordinate acquisition of the present invention;
FIG. 2 is a diagram of an image signal generating apparatus with a coordinate acquisition function according to an embodiment of the present invention;
FIG. 3 illustrates RGB image data resolution according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The programmable logic device of the embodiment adopts an FPGA chip; since the encoding technology of the image signals such as HDMI, TTL, LVDS, DP, MIPI or V-BY-ONE is common knowledge in the art, the display interface of the display panel to be tested in this embodiment is illustrated BY using an LVDS signal interface; in addition, the host computer of the present invention includes, but is not limited to, a PC.
An image signal generation apparatus with a coordinate acquisition function and an image signal generation process with a coordinate acquisition function according to the present embodiment will be described with reference to fig. 1 and 2.
In the embodiment, standard image signals defined by VESA are processed, a 1-frame standard image includes timing signals (field synchronizing signal vs, line synchronizing signal hs, data enable signal de) and RGB image data, the 1-frame standard image may be transmitted by a plurality of links, the RGB image data is uniformly distributed on each Link, and each Link has a distribution timing signal.
As shown in fig. 1, the image signal generating device with a coordinate obtaining function disclosed in this embodiment includes an upper computer, an LVDS image output interface, and an upper interface module 1, a reticle coordinate configuration module 2, a reticle generation module 3, a reticle gating module 4, a reticle image synchronization combination module 5, and an LVDS coding module 6 that are disposed in one FPGA chip. The reticle coordinate configuration module 2 comprises a synchronous counting submodule 21 and a coordinate obtaining submodule 22; the cross line generation module 3 includes a row dotting submodule 31, a center dotting submodule 32, a row dotting submodule 33, and a cross line generation submodule 34.
In the above embodiment, the upper computer generates the resolution configuration information, the central point (X, Y) coordinate configuration information, the Link number configuration information, the reticle color configuration information, and the reticle switch enable control signal, and sends the resolution configuration information and the central point (X, Y) coordinate configuration information to the reticle coordinate configuration module 2, the Link number configuration information and the reticle color configuration information to the reticle generation module 3, and the reticle switch enable control signal to the reticle gating module 4. In this embodiment, the Link number of the original RGB image is identical to the Link number arrangement information and the Link number of the cross image signal.
In the above embodiment, the synchronization counting sub-module 21 receives the timing signals of each Link of the original RGB image, and performs line synchronization and column synchronization processing on the timing signals of each Link according to the resolution configuration information, and if the original RGB image is 1Link data, no operation is required; if the original RGB image is multi-link data, then the bmp _ de, the bmp _ hs and the bmp _ vs of each link need to be synchronously aligned; meanwhile, the synchronous counting sub-module 21 analyzes the horizontal effective data length and the vertical effective data length of each link according to the resolution configuration information, and since 1link, 2link, 4link, 8link and 16link respectively process 1 pixel, 2 pixel, 4 pixel, 8 pixel and 16 pixel in 1 clock cycle, the horizontal effective data lengths are respectively horizontal resolution, horizontal resolution/2 pixel, horizontal resolution/4 pixel, horizontal resolution/8 pixel and horizontal resolution/16 pixel; in addition, since the vertical direction is processed in a row step-by-step manner, the vertical effective data length is the vertical resolution, which is not reduced. As shown in fig. 3, when the resolution of the original RGB image is 16 × 9, a line of data needs 16 clock processing for 1link, 8 clock processing for 2 links, 4 clock processing for 4 links, 2 clock processing for 8 links, and 1 clock processing for 16 links, and accordingly, the horizontal effective data length of 1link is 16, the horizontal effective data length of 2 links is 8, the horizontal effective data length of 4 links is 4, the horizontal effective data length of 8 links is 2, the horizontal effective data length of 16 links is 1, and the vertical effective data length of each link is 9.
In the above embodiment, the synchronization counting sub-module 21 further counts the horizontal effective data length and the vertical effective data length of each Link according to the time sequence signal after the synchronization processing, so as to obtain the horizontal effective data information and the vertical effective data information of each Link.
In the above embodiment, the coordinate obtaining sub-module 22 calculates the vertical line position indication signal and the horizontal line position indication signal according to the X, Y coordinate values marked on the display panel to be tested by the horizontal valid data information, the vertical valid data information and the central point (X, Y) coordinate configuration information. The image display is actually that dots are continuously dotted on the screen in a row and a line, the indication of the position of a vertical line is that the dot is taken and an effective indication signal is output when the corresponding X value of each row is reached, and a plurality of rows can be connected into a vertical line; when the horizontal line position indication is the line with the Y value, the whole line outputs the effective indication signal, namely, a horizontal line is formed.
In the above embodiment, the column dotting sub-module 31 performs dotting on the X value of each line of the RBG original image shown in fig. 3, when the vertical line position indication signal is active and the horizontal line position indication signal is inactive, based on the vertical line position indication signal, the horizontal line position indication signal, and the Link number configuration information, in a different way for different Link numbers:
at 1link, 1 dot is printed every clock cycle, and 1 dot is displayed on the screen 1 time:
Link1：(0、1、……、14、15)
dotting: [0] [1], [2], … …, [14], and [15 ];
at 2link, beat 2 points per clock cycle, display 2 points 1 time on the screen:
Link1：(0、2、……、12、14)
Link2：(1、3、……、13、15)
dotting: [0, 1], [2, 3], … …, [14, 15 ];
at 4 links, 4 dots are printed every clock cycle, and 4 dots are displayed on the screen 1 time:
Link1：(0、4、……、12)
Link2：(1、5、……、13)
Link3：(2、6、……、14)
Link4：(3、7、……、15)
dotting: [0, 1, 2, 3], … …, [12, 13, 14, 15 ];
under 8link, beat 8 points per clock cycle, display 8 points 1 time on the screen:
Link1：(0、8)
Link2：(1、9)
Link3：(2、10)
Link4：(3、11)
Link5：(4、12)
Link6：(5、13)
Link7：(6、14)
Link8：(7、15)
dotting: [0, 1, 2, 3, 4, 5, 6, 7], [8, 9, 10, 11, 12, 13, 14, 15 ];
under 16link, 16 dots are printed in each clock cycle, and 16 dots are displayed on the screen 1 time:
Link1：(0)
Link2：(1)
Link3：(2)
Link4：(3)
Link5：(4)
Link6：(5)
Link7：(6)
Link8：(7)
Link9：(8)
Link10：(9)
Link11：(10)
Link12：(11)
Link13：(12)
Link14：(13)
Link15：(14)
Link16：(15)
dotting: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ].
In the above embodiment, since the column dotting submodule 31 only takes 1 point in each row, when links are multiple, 1 point (cross line X coordinate value) is taken as a vertical line, and the other points are taken as the original RGB images. In this embodiment, the X, Y coordinate values are represented by 16-bit binary numbers: bit15-bit0, with the high order at the left and the low order at the right; for 1link, directly selecting X value points of each line; for 2link, the vertical line position indication corresponds to 2 points, and then the cross line column position is judged according to the 0 and 1 values of the cross line X coordinate value bit 0; for 4link, the vertical line position indication corresponds to 4 points, and then the position of the cross line column is judged according to the 00, 01, 10 and 11 values of the X coordinate value bit1-bit0 of the cross line; for 8link, the vertical line position indication corresponds to 8 points, and then the cross line column position is judged according to the values of 000, 001, 111 of the cross line X coordinate value bit2-bit 0; for 16link, the vertical line position indicates 16 points, and the reticle column position is determined according to the values 0000, 0001, 1111 of the reticle X-coordinate value bit3-bit 0. In this way, it is easy to expand to the processing of 32link, 64link, and the like images. For example, a coordinate value cross line (11,7) is displayed on fig. 3, and if the binary number of the X coordinate value 11 is 0000_0000_0000_1011, the coordinate value is directly displayed under 1 link; under 2link, bit0 is 1, which indicates that the 2 nd point is crossed when effective; under 4link, bit1-bit0 are 11, which indicates that the 4 th point is crossed when effective; under 8link, bit2-bit0 are 011, which indicates that the 4 th point is crossed when effective; under 16link, bit3-bit0 are 1011 indicating that the 12 th dot is crossed when valid.
In the above embodiment, the midpoint dotting sub-module 32 displays the original RGB image at the (X, Y) coordinate when the vertical line position indication signal is valid and the horizontal line position indication signal is valid according to the vertical line position indication signal, the horizontal line position indication signal and the Link number configuration information.
In the above embodiment, the row dotting sub-module 33 performs dotting on the whole row corresponding to the Y value, that is, each clock cycle is dotted when displaying a row, according to the vertical line position indication signal, the horizontal line position indication signal and the Link number configuration information, when the vertical line position indication signal is invalid and the horizontal line position indication signal is valid.
In the above embodiment, the cross line generation submodule 34 receives coordinate points selected by the column dotting submodule 31, the center dotting submodule 32, and the row dotting submodule 33 to form a complete cross line coordinate point, the cross line generation submodule 34 configures an RGB value of the cross line coordinate point according to cross line color configuration information, and the color of the cross line coordinate point can be adjusted in real time according to cross line color configuration information sent by an upper computer.
In the above embodiment, while the reticle generating sub-module 34 is operating, the reticle gating module 4 detects and synchronizes the vertical line position indication signal and the horizontal line position indication signal, and synchronously receives the data enable signals of the vertical line position indication signal and the horizontal line position indication signal to generate the reticle data enable signal.
In the above embodiment, the cross line image synchronization combination module 5 performs synchronization combination on the RGB values of the cross line coordinate points, the cross line data enable signals, and the original RGB image data, and synchronously distributes the RGB values of the links and the cross line data enable signals to the original RGB image data corresponding to the links to obtain the cross line image signals.
In the above embodiment, the LVDS coding module 6 receives the crossline image signal and codes and converts the crossline image signal into an LVDS image signal according to an LVDS communication protocol, and then the LVDS image signal is transmitted to the display panel to be detected through the LVDS image output interface.
It will be readily understood by those skilled in the art that the details of the present invention which have not been described in detail herein are not to be interpreted as limiting the scope of the invention, but as merely illustrative of the presently preferred embodiments of the invention.
Claims (10)
1. An image signal generation method with a coordinate acquisition function is used for acquiring coordinate information of a defect point or a defect area of a display panel to be detected, and is characterized by comprising the following steps:
s1) obtaining a vertical line position indication signal and a horizontal line position indication signal according to the resolution configuration information and the (X, Y) coordinate configuration information;
s2) obtaining cross line coordinate point information according to the vertical line position indication signal and the horizontal line position indication signal, and configuring RGB values of the cross line coordinate points;
s3) assigning the RGB values of the reticle coordinate points to RGB image data of each link, thereby obtaining a reticle image signal.
2. The image signal generation method with coordinate acquisition function according to claim 1, wherein step S1 includes the steps of:
s11) the time sequence signals of each link are processed synchronously according to the resolution configuration information, and the horizontal effective data length and the vertical effective data length of each link are analyzed according to the resolution configuration information;
s12) according to the time sequence signal after the synchronous processing, the horizontal effective data length and the vertical effective data length are counted to obtain the horizontal effective data information and the vertical effective data information of each link;
s13) obtaining the vertical line position indication signal and the horizontal line position indication signal according to the horizontal effective data information, the vertical effective data information and the (X, Y) coordinate arrangement information.
3. The image signal generation method with coordinate acquisition function according to claim 1, wherein step S2 further includes the steps of:
if the vertical line position indication signal is valid and the horizontal line position indication signal is invalid, selecting the X-th row coordinate point indicated by the vertical line position indication signal;
if the vertical line position indication signal is invalid and the horizontal line position indication signal is valid, the Y-th coordinate point indicated by the horizontal line position indication signal is selected.
4. The image signal generation method with coordinate acquisition function of claim 3, wherein the selecting the X-th column coordinate point indicated by the vertical line position indication signal comprises the steps of:
if each link is 1link, selecting the X-th row coordinate point indicated by the vertical line position indication signal;
if the links are multiple links, the vertical line position indication signal indicates a plurality of coordinate points with the same number as the links, and a corresponding coordinate point is selected from the coordinate points according to the binary value of the X coordinate value.
5. The image signal generation method with coordinate acquisition function according to claim 1, wherein step S2 further includes the steps of:
if the vertical line position indication signal is valid and the horizontal line position indication signal is valid, the RGB values of the corresponding coordinate point in the RGB image data are displayed at the (X, Y) coordinate point.
6. The image signal generation method with coordinate acquisition function according to claim 1, wherein step S2 further includes the steps of:
the data enable signals of the vertical line position indication signal and the horizontal line position indication signal are synchronously received, and the cross line data enable signal is generated.
7. The image signal generation method with coordinate acquisition function according to claim 6, wherein step S3 further includes the steps of:
and correspondingly distributing the reticle data enabling signal and the RGB value of the reticle coordinate point to the RGB image data of each link to obtain the reticle image signal.
8. The image signal generating method with coordinate acquiring function of claim 1, wherein the (X, Y) coordinate arrangement information is configured by an upper computer in step S2, and the (X, Y) coordinate arrangement information is adjusted by a mouse or a button.
9. An image signal generating device with a coordinate obtaining function is used for obtaining coordinate information of a defect point or a defect area of a display panel to be detected, and comprises an upper computer and is characterized by further comprising a cross line coordinate configuration module, a cross line generating module and a cross line image synchronous combination module which are arranged in a programmable logic device; wherein,
the cross line coordinate configuration module is used for obtaining a vertical line position indication signal and a horizontal line position indication signal according to the resolution configuration information and the (X, Y) coordinate configuration information;
the cross line generating module is used for obtaining cross line coordinate point information according to the vertical line position indicating signal and the horizontal line position indicating signal and receiving cross line color configuration information to configure an RGB value of the cross line coordinate point;
the reticle image synchronous combination module is used for correspondingly distributing the RGB values of the reticle coordinate points to the RGB image data of each link to obtain reticle image signals;
the upper computer is used for providing the resolution configuration information, (X, Y) coordinate configuration information and the cross line color configuration information.
10. The image signal generating apparatus with coordinate acquisition function according to claim 9, wherein the programmable logic device further includes:
and the cross line gating module is used for synchronously receiving the data enabling signals of the vertical line position indicating signal and the horizontal line position indicating signal and generating a cross line data enabling signal.
The reticle image synchronous combination module is also used for correspondingly distributing the reticle data enabling signal to each link of the reticle image signal.
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| CN114428576A (en) * | 2021-12-20 | 2022-05-03 | 北京镁伽科技有限公司 | Cursor color determination method and device, PG (program guide) equipment and storage medium |
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