A waveform effect automatic detection method and device

Abstract

The present application relates to the technical field of electronic paper detection, and discloses a waveform effect automatic detection method and device, the method comprising the following steps: S1, displaying a to-be-detected picture on to-be-detected electronic paper, and obtaining a real-time optical value of the to-be-detected picture; S2, obtaining a real-time font saturation and a real-time corner saturation of the to-be-detected picture; S3, comparing the real-time optical value with a standard optical value, comparing the real-time font saturation with a standard font saturation range, and comparing the real-time corner saturation with a standard corner saturation range. The present application has the beneficial effect that the real-time optical value, the real-time font saturation and the real-time corner saturation of the to-be-detected electronic paper can be measured simultaneously, and the three parameters are compared with corresponding standard requirements respectively, thereby improving detection efficiency and detection accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic paper detection, in particular to an electronic paper waveform automatic detection method and device. BACKGROUND

[0002] Electronic paper ink screen display has the characteristics of ultra-low power consumption, low frequency display and power saving, and has a wide application market in price tags, education tablets, bus station boards and other scenes. Due to the influence of factors such as electronic paper production batch, TFT backplane and driving IC, different product models using different batches of electronic paper need to be separately Waveform waveform debugged to achieve the required display effect.

[0003] In the process of Waveform waveform debugging, the debugging engineer needs to adjust the Waveform parameters and issue the corresponding generated Waveform parameters to the electronic paper, and the electronic paper displays the picture, and judges whether the electronic paper Waveform waveform is qualified by testing whether the optical, font and corner effects of the display picture meet the requirements. In the prior art, the optical detector needs to be manually operated to collect optical value related data, and when detecting the font and corner, it is completely observed and judged by the naked eye of the debugging engineer, lacking reliable standards for judging the font and corner effects. This detection method greatly affects the debugging efficiency of the debugging engineer, and the detection accuracy is low. SUMMARY

[0004] The purpose of the present application is to provide a waveform effect automatic detection method and device, which can simultaneously measure the real-time optical value, real-time font saturation and real-time corner saturation of the electronic paper to be tested, and compare them with the corresponding standard requirements respectively, thereby improving the detection efficiency and detection accuracy.

[0005] In order to achieve the above purpose, the present application provides a waveform effect automatic detection method, comprising the following steps

[0006] S1, displaying a to-be-tested picture on a to-be-tested electronic paper, and obtaining a real-time optical value of the to-be-tested picture;

[0007] S2, obtaining a real-time font saturation and a real-time corner saturation of the to-be-tested picture;

[0008] S3, comparing the real-time optical value with a standard optical value, comparing the real-time font saturation with a standard font saturation range, and comparing the real-time corner saturation with a standard corner saturation range.

[0009] The present application also provides a waveform effect automatic detection device based on the above-mentioned waveform effect automatic detection method, comprising

[0010] A carrier for placing an electronic paper to be tested, the electronic paper to be tested being capable of displaying the picture to be tested;

[0011] An optical detector for collecting the real-time optical values of the picture to be tested;

[0012] A moving assembly connected with the optical detector, for moving the optical detector to an optical collection point of the picture to be tested;

[0013] A camera for taking a picture of the picture to be tested to obtain a detection pattern;

[0014] A host computer electrically connected with the electronic paper to be tested, the optical detector, the moving assembly and the camera;

[0015] The host computer acquires the real-time optical values; the host computer acquires the detection pattern, measures the single-pixel font area and the corner area, and calculates the real-time font saturation and the real-time corner saturation.

[0016] Further, the real-time font saturation = (single-pixel font area) / (single-pixel design area of the font) * 100%.

[0017] Further, the standard font saturation has a value range of 70%-130%.

[0018] Further, the real-time corner saturation = (corner area) / (number of pixels of the corner area of the picture to be tested * single-pixel design area of the corner) * 100%.

[0019] Further, the standard corner saturation has a value range of 70%-130%.

[0020] Further, the number of real-time optical values is four, and the four real-time optical values correspond to red, yellow, black and white respectively.

[0021] Further, the brightness value range of the standard optical value corresponding to red is 23-27.

[0022] Further, the moving assembly is a mechanical hand.

[0023] Further, the number of optical collection points is multiple.

[0024] The embodiment of the present application is a waveform effect automatic detection method and device. Compared with the prior art, the beneficial effect is that the real-time optical value, real-time font saturation, and real-time corner saturation of the electronic paper to be detected can be measured at the same time, and the real-time optical value is compared with the standard optical value, the real-time font saturation is compared with the standard font saturation range, and the real-time corner saturation is compared with the standard corner saturation range. If the three parameters of the real-time optical value, the real-time font saturation, and the real-time corner saturation all meet the corresponding standards, the electronic paper Waveform waveform is determined to be qualified, otherwise, it is not qualified, thereby improving the detection efficiency and detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a flowchart of the waveform effect automatic detection method of the embodiment of the present application;

[0026] Figure 2 is a structural principle diagram of the waveform effect automatic detection device of the embodiment of the present application;

[0027] In the figure, 1 is a carrier, 2 is an optical detector, 3 is a moving assembly, 4 is a camera, 5 is an upper computer, 6 is a support, a is electronic paper to be detected. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0029] In the description of the present application, it should be understood that the positions or location relationships indicated by the terms “up”, “down”, “front”, “back”, “inner”, “outer” and the like in the present application are based on the position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices and elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms “first”, “second” and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the “first” information can also be referred to as “second” information without departing from the scope of the present application, and similarly, the “second” information can also be referred to as “first” information.

[0031] As shown in Figure 1 The waveform effect automatic detection method of the preferred embodiment of the present application is used to detect the related parameters of the optical, font, and corner of the electronic paper, which specifically includes the following steps:

[0032] S1, display a to-be-tested picture on the to-be-tested electronic paper a, and acquire real-time optical values of the to-be-tested picture;

[0033] S2, acquire real-time font saturation and real-time corner saturation of the to-be-tested picture;

[0034] S3, compare the real-time optical values with standard optical values, compare the real-time font saturation with a standard font saturation range, and compare the real-time corner saturation with a standard corner saturation range.

[0035] In step S3, if the real-time optical values, the real-time font saturation and the real-time corner saturation all meet the corresponding standards, it is determined that the electronic paper Waveform is qualified, otherwise, it is not qualified. Compared with the judgment of the font and the corner by the naked eye of a debugging engineer, the detection efficiency and the detection accuracy are improved.

[0036] In order to facilitate automatic detection, further improve the detection efficiency and the detection accuracy, the present application also provides a waveform effect automatic detection device based on the above waveform effect automatic detection method, which comprises a carrier 1, an optical detector 2, a moving assembly 3, a camera 4 and an upper computer 5. The upper computer 5 is electrically connected with the to-be-tested electronic paper a, the optical detector 2, the moving assembly 3 and the camera 4.

[0037] The carrier 1 is used for placing the to-be-tested electronic paper a, the to-be-tested electronic paper a can display a to-be-tested picture, the optical detector 2 is used for collecting real-time optical values of the to-be-tested picture and transmitting the real-time optical values to the upper computer 5, and the upper computer 5 acquires the real-time optical values. In order to facilitate the movement of the optical detector 2 to a specified optical collection point, the moving assembly 3 is connected with the optical detector 2 and is used for moving the optical detector 2 to the optical collection point of the to-be-tested picture. In order to improve the moving accuracy of the optical detector 2, the moving assembly 3 can be a mechanical hand in the embodiment. In order to facilitate the judgment of the font and the corner effect on the to-be-tested picture, the camera 4 is arranged. In order to facilitate the installation of the camera 4, a support 6 is arranged on the carrier 1, the camera 4 is installed on the carrier 1 and located above the to-be-tested electronic paper a, the camera 4 takes a detection pattern of the to-be-tested picture and transmits the detection pattern to the upper computer 5, the upper computer 5 measures the single-pixel font area and the corner area according to the detection pattern taken by the camera, calculates the real-time font saturation and the real-time corner saturation, and prestores standard optical values, a standard font saturation range and a standard corner saturation range corresponding to different display pictures in the upper computer 5 before the detection of the to-be-tested electronic paper a. Different collection points are also prestored, and the three real-time parameters are compared with the above standards to determine whether the electronic paper Waveform is qualified.

[0038] Further, in the embodiment, in order to facilitate the calculation of the real-time saturation, facilitate the comparison with the standard font saturation range, the real-time font saturation = font single-pixel area / font single-pixel design area*100%. The value range of the standard font saturation is 70%-130%. The font single-pixel area of the specified detection point of the to-be-detected picture is measured by the camera, and the real-time font saturation is calculated according to the font single-pixel design area of the current to-be-detected electronic paper. If the real-time font saturations of all the point positions are within the range of 70%-130%, the font is determined to be qualified.

[0039] Further, in the embodiment, in order to facilitate the calculation of the real-time corner saturation, facilitate the comparison with the standard corner saturation range, the real-time corner saturation = corner area / (corner region pixel number of the to-be-detected picture*corner single-pixel design area)*100%. The value range of the standard corner saturation is 70%-130%. The areas of the four corner regions of the to-be-detected picture are obtained by the camera, and the real-time corner saturation is calculated according to the corner single-pixel design area of the current to-be-detected electronic paper. If the real-time corner saturations of the four corners are within the range of 70%-130%, the corner is determined to be qualified.

[0040] In the embodiment, in order to further improve the reliability of the detection result, the number of real-time optical values is four groups, and the four groups of real-time optical values correspond to red, yellow, black and white respectively. When measuring optical values of different colors, in order to ensure the reliability of the measurement result, the number of optical collection points is multiple.

[0041] The optical value is represented by three Lab values, and the standard optical values of different colors are as follows:

[0042]

[0043] Among them, L represents brightness, a represents red-green chroma, and b represents yellow-blue chroma. The value range of the brightness in the standard optical value of red is 23-27.

[0044] In summary, compared with the prior art, the embodiment of the present application provides a waveform effect automatic detection method and device, which has the beneficial effects that the real-time optical value, real-time font saturation and real-time corner saturation of the to-be-detected electronic paper a can be measured at the same time, the real-time optical value is compared with the standard optical value, the real-time font saturation is compared with the standard font saturation range, and the real-time corner saturation is compared with the standard corner saturation range. If the three parameters of the real-time optical value, the real-time font saturation and the real-time corner saturation all meet the corresponding standards, the electronic paper Waveform is determined to be qualified, otherwise it is not qualified, which improves the detection efficiency and detection accuracy.

[0045] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. An automatic waveform effect detection method, characterized in that: Includes the following steps S1. The image to be tested is displayed on the electronic paper under test, and the real-time optical value of the image to be tested is obtained; S2. Obtain the real-time font saturation and real-time corner saturation of the image to be tested; S3. Compare the real-time optical value with the standard optical value, compare the real-time font saturation with the standard font saturation range, and compare the real-time corner saturation with the standard corner saturation range. If the three parameters of real-time optical value, real-time font saturation, and real-time corner saturation all meet the corresponding standards, then the electronic paper Waveform waveform is deemed qualified; otherwise, it is deemed unqualified.

2. An automatic waveform effect detection device, based on the automatic waveform effect detection method of claim 1, characterized in that: include A stage for placing an electronic paper to be tested, wherein the electronic paper can display the image to be tested; An optical inspection instrument is used to acquire the real-time optical values ​​of the image to be tested; A movable component, connected to the optical detector, is used to move the optical detector to the optical acquisition point of the image to be tested; The camera takes a picture of the image to be tested to obtain a test pattern; The host computer is electrically connected to the electronic paper under test, the optical detector, the moving component, and the camera. The host computer acquires the real-time optical values; The host computer acquires the detection pattern, measures the area of ​​a single pixel font and the area of ​​its corners, and calculates the real-time font saturation and the real-time corner saturation.

3. The automatic waveform effect detection device as described in claim 2, characterized in that: The real-time font saturation is calculated as: (Font single-pixel area / Font single-pixel design area) * 100%.

4. The automatic waveform effect detection device as described in claim 2, characterized in that: The standard font saturation range is 70%-130%.

5. The automatic waveform effect detection device as described in claim 2, characterized in that: The real-time corner saturation is calculated as: Corner area / (Number of pixels in the corner region of the image under test * Design area of ​​a single pixel in the corner) * 100%.

6. The automatic waveform effect detection device as described in claim 2, characterized in that: The standard corner saturation value ranges from 70% to 130%.

7. The automatic waveform effect detection device as described in claim 2, characterized in that: The number of real-time optical values ​​is four sets, and the four sets of real-time optical values ​​correspond to the four colors of red, yellow, black and white, respectively.

8. The automatic waveform effect detection device as described in claim 7, characterized in that: The brightness value corresponding to red in the standard optical values ​​ranges from 23 to 27.

9. The automatic waveform effect detection device as described in claim 2, characterized in that: The moving component is a robotic arm.

10. The automatic waveform effect detection device as described in claim 2, characterized in that: The number of optical acquisition points is multiple.

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