Display module detection method

Abstract

The invention discloses a display module detection method, which comprises the following steps of: 1, setting an upper limit value and an initial lower limit value in a detection standard for detecting a flicker value of a display module, and performing small-batch production test on the display module; step 2, classifying the display modules which do not conform to the initial lower limit value in the small-batch production test, analyzing the display modules of which the flicker values are not 0 and are lower than the initial lower limit value, and updating a new lower limit value of the flicker standard according to an analysis result; and 3, carrying out mass production test on the display module, and detecting the display module according to the upper limit value and the new lower limit value of the detection standard of the flicker value. According to the method and the device, the problem that the real flicker value exceeds the standard subsequently due to inaccurate detection of the flicker value can be solved, and the detection efficiency of the display module can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display modules, and in particular to a display module detection method. Background Art

[0002] When the existing technology uses an automatic machine to test the lighting of the display module, it will only control the upper limit value when detecting the flicker value (flicker value). When the detected flicker value exceeds the upper limit, it is defective. In the actual production process, there will be products that have passed the flicker value test, but the actual flicker value exceeds the standard after subsequent burning, resulting in customer complaints. Through analysis, it is found that when the display module is looking for the best flicker value, the display module may have a black screen or a machine lens failure, resulting in the flicker value read as 0, making the test result inaccurate, causing the actual flicker value to exceed the standard and flickering after the display module is burned. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, improve the accuracy of display module detection and improve the quality of display module products, and provide a display module detection method.

[0004] The technical solution of the present invention is as follows: The present invention provides a display module detection method, comprising the following steps: Step 1: setting an upper limit value and an initial lower limit value in the detection standard for detecting the flicker value of the display module, and performing a small batch production test on the display module;

[0005] Step 2: During the small batch production test, display modules that do not meet the initial lower limit value are classified, and after analyzing the display modules whose flicker values ​​are not 0 and are lower than the initial lower limit value, a new lower limit value of the flicker standard is updated according to the analysis results;

[0006] Step 3: Conduct mass production testing on the display modules, and test the display modules according to the upper limit and new lower limit of the flicker value test standard.

[0007] Furthermore, in step 2 and step 3, when the flicker value of the display module is greater than the upper limit value, the display module is judged to be unqualified.

[0008] Furthermore, in step 2, when the flicker value of the display module is 0, the display module is judged to be unqualified, and the display module is discarded and analyzed by a device engineer.

[0009] Furthermore, in step 3, when the flicker value of the display module is lower than the new lower limit, the display module is judged to be unqualified.

[0010] By adopting the above scheme, the beneficial effect of the present invention is that by controlling the upper and lower limits of flicker, and first carrying out small-batch production and analyzing and adjusting before large-scale production, it is possible to monitor lens failures and black screen problems of display modules, solve the problem of inaccurate flicker value detection resulting in subsequent excessive actual flicker values, and improve the detection efficiency of display modules. DETAILED DESCRIPTION

[0011] The present invention is described in detail below in conjunction with specific embodiments.

[0012] In this embodiment, the present invention provides a display module detection method, comprising the following steps:

[0013] Step 1: Set the upper limit and initial lower limit in the detection standard of the flicker value of the display module, write the corresponding upper limit and initial lower limit data into the automatic machine for detection, and conduct a small batch production test on the display module. By setting the lower limit, the display modules with lower flicker values ​​can be screened out, and the problem of black screen of the display module and dirty lens of the automatic machine can be screened out in time.

[0014] Step 2: During the small batch production test, the display modules that do not meet the initial lower limit are classified, and the display modules whose flicker values ​​are not 0 and are lower than the initial lower limit are analyzed, and the new lower limit of the flicker standard is updated according to the analysis results; such display modules with a flicker value of 0 are judged as unqualified, and such display modules are discarded and analyzed by equipment engineers. When the flicker value of the display module is greater than the upper limit, the display module is judged as unqualified.

[0015] Step 3: Update the new lower limit value data to the automatic machine. By setting the new lower limit value, the data can be guaranteed to be more accurate. Later, the display module will be tested in large quantities according to the upper limit value and the new lower limit value of the flicker value detection standard. When the flicker value of the display module is greater than the upper limit value, the display module is judged to be unqualified. When the flicker value of the display module is lower than the new lower limit value, the display module is judged to be unqualified. During the test, the automatic machine outputs and analyzes the test data, and issues an alarm when the data is abnormal. The operator can also continue to observe the trend and promptly discover the problem of dirty lens of the automatic machine.

[0016] In summary, the beneficial effect of this solution is that by controlling the upper and lower limits of flicker, and first carrying out small-batch production and conducting analysis and adjustment before large-scale production, it is possible to monitor lens failures and display module black screen problems, solve the problem of inaccurate flicker value detection resulting in subsequent excessive actual flicker values, and improve the detection efficiency of display modules.

[0017] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display module detection method, characterized in that: The following steps are involved: Step 1: Set an upper limit value and an initial lower limit value in the detection standard for detecting the flicker value of the display module, and conduct a small batch production test on the display module; Step 2: During the small batch production test, display modules that do not meet the initial lower limit value are classified, and after analyzing the display modules whose flicker values ​​are not 0 and are lower than the initial lower limit value, a new lower limit value of the flicker standard is updated according to the analysis results; Step 3: Conduct mass production testing on the display modules, and test the display modules according to the upper limit and new lower limit of the flicker value test standard.

2. The display module detection method according to claim 1, characterized in that: In step 2 and step 3, when the flicker value of the display module is greater than the upper limit value, the display module is judged to be unqualified.

3. The display module detection method according to claim 1, characterized in that: In step 2, when the flicker value of the display module is 0, the display module is judged to be unqualified, and the display module is discarded and analyzed by a device engineer.

4. The display module detection method according to any one of claims 1 to 3, characterized in that: In step 3, when the flicker value of the display module is lower than the new lower limit, the display module is judged to be unqualified.