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Reliability Testing Of LCD Display Screens

Views: 299     Author: Kaylee     Publish Time: 2023-11-07      Origin: Site


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Reliability Testing Of LCD Display Screens

Before our LCD display panels can be sent out of the factory, they must first pass a battery of different types of tests. The results of these tests guarantee that our displays are trustworthy and stable, as well as up to the required quality standard. LCD panels are frequently constrained by environmental conditions like temperature and humidity, which can lead to product failures in terms of the operating temperature and the storage temperature. LCD screens have a structure that is analogous to a box and are made of glass in addition to materials that include liquid crystals. This is the reason why this is the case. As a consequence of this, it is of the utmost importance to perform dependability tests on LCD screens.

When we talk about conducting tests to evaluate the dependability of LCD panels, we are referring to the procedures that establish whether or not the LCD screen products we sell are dependable and consistent. We aspire to earn the appreciation of our customers for the durability and dependability of the display screen goods that we provide by undertaking reliability testing. Before they can be put into production, our components have to go through a series of tests in challenging environments, such as those with high temperatures and high levels of humidity. We will need to make a lot of modifications to the product in order to bring it up to the level of functionality that was anticipated. This is something that we cannot avoid doing. In our product specifications, which also include the numerical values, you should be able to locate the results of the reliability test performed on the LCD screen. These standards include a comprehensive amount of information and statistics.

After that, we will talk about the process of reliability testing and how it may be applied to a wide variety of different LCD displays.

Storage Temperature Test Of LCD Screen

When the temperature is changed by a considerable degree, there is a perceptible shift in the electrical performance of things that employ LCD panels. This shift can occur when the temperature is increased or lowered. The LCD screen device is turned off before these tests are performed so that an evaluation can be conducted to evaluate the effects of prolonged exposure to high and low temperatures. These tests are carried out so that an evaluation can be made. Before any testing can take place, a certain length of time must pass during which the test screen must be kept at the temperature. After the evaluation portion of the test has been completed, you will have the time given to you to carry out an electrical and visual inspection of the evaluation screen. The temperature in the laboratory begins at room temperature and gradually rises and falls with each test up until the point where it is revealed that the test screen has been corrupted.

Working Temperature Test Of LCD Screen

The presence of electrical pressure is the feature of these tests that represents a divergence from the earlier point in question. This is the aspect that has been called into doubt. This aspect stands out as the one that deviates the most significantly from the norm. In a nutshell, in order to assess whether or not the functionality of the test screen satisfies the requirements, the functionality of the screen is evaluated while it is being used. In order for these tests to be successful, it is typically necessary to adhere to a more stringent temperature range than what was required for the storage testing.

Temperature Cycling Test Of LCD Screen  

Find out how effectively the piece of equipment can deal with the temperature constantly changing during the day. For the purpose of heating up the test screen and then allowing it to cool down again, a period of time that is considered to be on the shorter end of the spectrum is allocated. The results of this test will give you with information regarding the capability of the display screen product to survive fast changes in temperature. In order to ensure the highest level of precision, these examinations were carried out in an expert laboratory.

Vibration Testing Of LCD Screen

Vibration testing machine for LCD screens

During this specific test, a specialist vibrator is employed in order to shake the test screen in order to collect data. The impact that was generated was a shift in one of three possible directions within a frequency range that had been specified beforehand.

Moisture Proof Test For LCD Screens

This time, in addition to maintaining a high level of temperature and a high level of humidity in the room where the test screen was stored, a high level of temperature was also maintained there. The results of the experiment take a number of different factors into consideration, such as the temperature, the relative humidity, and the amount of time that was spent carrying out the experiment. The term "relative humidity" is shortened to RH, which is an acronym for the full phrase.

Packaging Drop Test For LCD Screens

Packaging drop testing machine for LCD screens

The suspension rod maintains the packaged LCD screen product at a specific height, drops it at the suitable angle, and conducts tests to verify the product's conformity with its packaging so that it may be securely dispatched. This helps to ensure that the product is in good condition when it is delivered to the customer.

ESD Testing Of LCD Screens (Electrostatic Discharge Testing)  

Electrostatic discharge, often known as ESD, is a current that suddenly forms between two objects that have different electromotive forces. This current is known as an electrostatic discharge. In most cases, electrification is responsible for producing this current. This phenomenon can be noticed in behaviours that people do on a regular basis, such as rubbing on clothes or carpets, which causes a substantial amount of load to be accumulated on the body. We have the distinct feeling that we are undergoing a "electric shock," and it is possible that the voltage is in the several thousand-volt range. ESD testing is absolutely necessary since a discharge of this kind has the potential to inflict damage to the display device that cannot be repaired. Because the ESD generator was designed with the goal of mimicking the human body, the values for its RC characteristics (capacity and resistance) should be comparable to those of the human body. The electrostatic discharge (ESD) test is carried out in two unique environments: the first environment is in direct contact with the object that is being evaluated, and the second environment is in air discharge at a predetermined distance.

ESD testing of LCD screens

The dependability tests that were specified earlier are carried out on each and every one of our LCD screen products, and the testing apparatus that we make use of during the testing technique was previously outlined. I sincerely hope that everyone of our customers is able to recognise the amount of effort that has been put into the reliability testing data table that they have been given. Each and every LCD screen product has been put through all of the tests, and only display screen items that have passed the tests will be included in the products that have been made specifically for you.




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