The heavy ball drop test for touch panels is a test method used to evaluate the durability and impact resistance of touch panels when subjected to heavy impact. The following is a detailed description of the test:
The heavy ball drop test is designed to simulate the impact of heavy objects that may be encountered during the actual use of the touch screen, such as cell phones or tablet PCs slipping out of the hand, being smashed by other objects, etc. The test can detect the durability and impact resistance of the touch screen when it is subjected to heavy objects. Through this test, it can detect whether the touch screen is cracked, broken, functional failure and other problems after being impacted, so as to ensure the quality and reliability of the product.
Heavy ball: As an impact object, the quality and shape of the heavy ball should meet the test standard. Commonly, the quality of the ball ranges from tens of grams to hundreds of grams, and the shape is usually spherical or cylindrical, in order to simulate the impact effect of the actual fall.
Test platform: Used to fix the touch screen to ensure that it remains stable during the test. The test platform usually has a horizontal adjustment function to ensure the accuracy of the test.
Drop Device: Used to drop a heavy ball freely from a specified height onto the touch screen. The dropping device should be able to accurately control the dropping height and impact direction to meet the test requirements.
Test steps:
1. Preparation stage: Place the touch screen on the test platform to ensure that it is fixed and stable. At the same time, according to the test requirements to select the appropriate quality of the heavy ball and drop height.
2. Drop test: Drop the heavy ball freely on the touch screen from the specified height. Drop tests are usually conducted on different locations of the touch screen, such as the front, sides, edges, etc., in order to comprehensively assess its impact resistance.
3. Testing results: After the drop test is completed, the touch screen is checked for cracks, breaks, functional failures and other problems. At the same time, function testing can also be carried out to ensure that the touch screen can still work normally after being impacted.
Test Standard
The heavy ball drop test of touch screen usually follows certain test standards and specifications, such as the International Electrotechnical Commission (IEC) or national standards (GB) and other relevant standards. These standards stipulate the requirements for test methods, test conditions, test results determination, etc. to ensure the accuracy and reliability of the test.
Precautions:
1. Pre-test inspection: Before conducting the heavy ball drop test, the touch screen needs to be routinely inspected to ensure that its surface and function are normal and free from abnormalities such as dirt, missing corners and cracks.
2. Test environment: The test environment should be kept under normal temperature and humidity to avoid the influence of temperature and humidity on the test results.
3. Number of Tests: Usually, multiple drop tests will be conducted for each test position of the touch screen to ensure the accuracy and reliability of the test results.
4. Safety protection: When conducting heavy ball drop test, necessary safety protection measures should be taken, such as wearing protective glasses, gloves, etc., to prevent heavy ball splash or touch screen debris from hurting people.
In summary, the heavy ball drop test of the touch screen is an important durability test method to assess the impact resistance and durability of the touch screen by simulating the actual use of heavy drop impact. Certain testing standards and precautions need to be followed in the testing process to ensure the accuracy and reliability of the test.