Experiment § Perfusion LED display
There are many types of LED displays, the initial estimates are as follows:
1. 7-byte LED display (as shown in Figure 1): It is a digital indication used on the display panel of mechanical equipment, instruments, household appliances, communication, and computer equipment, and has a variety of colors to choose from. 2. Alphabet-type LED display (as shown in Figure 2): It can provide the display of numbers and letters at the same time, with a variety of colors to choose from, and has the characteristics of high brightness, high contrast, and wide viewing angle display. 3. Dot matrix LED display (as shown in Figure 3): It can be applied to indoor or semi-outdoor messages, images, and advertisements to display billboards, with single-color, two-color, and RGB full-color displays to choose from. 4. Built-in IC driver LED display (as shown in Figure 4): It is used in display panels such as household products, computer products, communications, game consoles, industrial or medical equipment, etc. 5. Graphical LED display (as shown in Figure 5): It provides a design with high flexibility and strong contrast and is widely used in audio-visual equipment, DVD, VCR and microwave ovens, and other household equipment. There are many types of monitors, and customer requirements are also different. There are general types and special types in the application. The difference is that the special type needs to pass the TCP-240 environmental test, and the rest of the requirements are similar to the general type. The associated tests can make resin formulation more difficult. For example, during the environmental test, the crystal wire on the PCB board cannot be broken, the colloid cannot be broken, cannot generate air bubbles, and cannot be liquefied when passing through the tin furnace, which is indeed a big test. The above-mentioned LED perfusion method is to first put a layer of 3M tape on the surface of the display, and then mix the epoxy resin according to its proportion of three agents, vacuum it, pour it into the display, and put it into the PCB board, and finally, according to the curing conditions, it can be cured. This perfusion method seems simple, and how to remove its tiny air bubbles is the key. The bubbles may be stuck in the corners and cannot come out, or they may float on the top and cannot be defoamed smoothly. In addition, the display also has dyeing problems that need to be paid attention to, such as the selection of the type and particle size of the diffusing agent, because the color cannot be covered, and issues such as light transmittance should also be considered. At present, the products that Everwide Chemical has passed the above tests and mass-produced are the JC117 series, which are mostly used in 7-byte LED displays.
─Author: Assistant R&D Engineer Miss. Ming-Xiu, Lai of Everwide Chemical
Character close-up § The best and most attentive management department
"We sent a fax order, have you received it?" "Yes, we will use Hsinchu logistics to ship it to you as scheduled." These conversations are the daily reception process of the management department, and the affairs seem a bit cumbersome. But the staff are very eager to deal with the matters explained by customers and do their best and the most careful one by one. "The price of oil has dropped, so should the cost of raw materials." This is our chairman's insistence on cost because the cost of purchasing raw materials has been reduced. In contrast, our company's product prices can also be a little more flexible, which has a win-win effect for both customers and us. "When purchasing, try to buy high-quality and cheap things." "Try to make the best use of everything." The drive of thrift is the proudest operation indicator of our company's financial girls. He said that frugality is a virtue and a practical habit. For the company, saving unnecessary waste is helping the company make money. "Don't worry, we will help you open an account with your salary and join the labor and health insurance for you." On the first day of work for new employees, our HR lady will provide you with kind service. Because every employee is a treasure of the company, all employees deserve to be treated sincerely.
─Author: Information Commissioner Mrs. Wen-Zheng, Zeng Everwide Chemical
Knowledge § UV glue curing related issues when dyeing transparent plastics.
When dyeing clear plastics, which colors can possibly be cured with UV glue? Which colors are difficult to cure with UV glue?
In principle, red is the hardest to cure with glue, but orange might work, and blue should be the easiest. After the plastic is dyed, it is best to use a high-sensitivity photoinitiator to improve the reaction ability of the UV glue. As for whether the UV glue can be properly cured, it is also affected by the depth of the color and the thickness of the plastic. There is not necessarily a general rule to follow.
Living § Preparation experience of 2009 Taipei International Electronics Fair
I just took over the host of Everwide Chemical's 35th Taipei International Electronics Fair and thanks to the recommendation of several other exhibition leaders, I was inevitably worried about the theme and the layout of the exhibits. The selected theme posters and UV-Epoxy application posters show the accumulation of cooperation and new ideas. From the idea to the impact of seeing the entity, it represents the intention of each person in charge. During the preparatory period, through the publication of exhibition posters and application instructions, everyone will try to express the product application industry and special effects more appropriately. The expectations and encouragement of the supervisors made this exhibition even more challenging. We hope that this exhibition can present the characteristics of Everwide Chemical and make a knowledge exchange. After seeing the experience of the successful exhibition last year, we hope that this year will be able to achieve better results and achieve a higher level. This year we mainly exhibited UV and Epoxy in different industries. UV emphasizes new process products and diversified applications, towards lightness, thinness, and lower production costs, such as UV molding glue, and Everwide Chemical's product exhibition in the IMD industry. Epoxy is mainly used in the LED industry, resin for composite materials, and metal-to-carbon fiber products, emphasizing the advantages of light, strong, and tough composite materials. In addition, we also introduce thermal conductive sheets, which can quickly dissipate heat energy and prevent overheating of electronic parts. In this year's Taipei International Electronics Show, Everwide Chemical strives to introduce new products. In addition to the above-mentioned products on display, we also introduce various other products. We sincerely invite people from all walks of life to come and give advice. The 35th 2009 Taipei International Electronics Show, dated from October 8th (Thursday) to October 11th (Sunday), 2009. The exhibition venue is in the Nangang Exhibition Hall of the World Trade Center. The booth number of Everwide Chemical is J302.J304.J401.J403.
─Author: Assistant R&D Engineer Mrs. Can-Xian, Hong of Everwide Chemical
