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Hitachi LMG6911RPBC-E

# LMG6911RPBC-E Hitachi LMG6911RPBC-E New LMG6911RPBC KOE 5.7 inch LCM 320×240 6:1 Monochrome CCFL Parallel Data, LMG6911RPBC-E pictures, LMG6911RPBC-E price, #LMG6911RPBC-E supplier ------------------------------------------------------------------- Email: sales@shunlongwei.com https://www.slw-ele.com/lmg6911rpbc-e.html ------------------------------------------------------------------- Panel Brand:  HITACHI Panel Model : LMG6911RPBC   Panel Size : 5.7 inch Panel Type STN- LCD , LCM  Resolution: 320×240 , Q VGA   Pixel Format Rectangle Display Area: 115.17(W)×86.37(H) mm Bezel Opening 122.0(W)×90.0(H) mm Outline Size 167.1(W)×109(H) mm Brightness - Contrast Ratio 6:1 (Typ.) (TM)     Viewing Angle - Display Mode STN, Blue mode (Negative), Transmissive  IP

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th

What errors may occur during CNC machining and CNC machining​?

 CNC machining and numerical control machining are a method to control the movement of machine tools and the production process of machining through computer digitization and information digitization. It is an intelligent numerical control device developed as an economical, high-speed, reliable, multi-functional, intelligent, and open structure. CNC machining is also an important indicator that can measure the continuous level and comprehensive ability of a safety technology, as well as the degree of modernization of related science and technology capabilities, especially in aviation, biology, medical and other high-tech cultural industries, and it is also a powerful indicator. reflect. So, what errors may occur during CNC machining and CNC machining? Let us understand together:   The use of approximate machining motion or approximate tool contours causes errors in the CNC principle of machining. The reason why it is called machining principle error is because of the error in machining

Talking about 6 ways to reduce the defect rate of PCB for vehicles

The automotive electronics market is the third largest application area of ​​PCBs after computers and communications. With the gradual evolution and development of automobiles from traditional mechanical products to intelligent, informatized, and mechatronics high-tech products, electronic technology has been widely used in automobiles, whether it is engine systems, chassis systems, Security systems, information systems, and in-vehicle environmental systems all use electronic products without exception. The automotive market has obviously become another bright spot in the electronic consumer market. The development of automotive electronics has naturally driven the development of automotive PCBs.
Among the key applications of PCBs today, PCBs for automobiles occupies an important position. However, due to the special working environment, safety and high current requirements of the car, it has high requirements on the reliability and environmental adaptability of the PCB, and the types of PCB technology involved are also wide. This is a problem for PCB companies. Challenge; For manufacturers who want to develop the automotive PCB market, they need to do more understanding and analysis of this new market.
Automotive PCBs particularly emphasize high reliability and low DPPM. So, does our company have the accumulation of technology and experience in high-reliability manufacturing? Is it consistent with the future product development direction? In terms of process control, is it able to do well in accordance with the requirements of TS16949? Has a low DPPM been achieved? All these need to be carefully evaluated. Just seeing this attractive piece of cake and entering blindly will bring harm to the enterprise itself.
The following are representative parts of the special practices in the testing process of professional PCB manufacturers for automobiles, for reference to the majority of PCB colleagues:
1, the second test method
Some PCB manufacturers adopt the “secondary test method” to increase the rate of finding defective boards that have undergone the first high-voltage electrical breakdown.
2, bad board foolproof test system
More and more PCB manufacturers have installed “good board marking system” and “bad board error prevention box” in the light board tester to effectively avoid human leakage. The good board marking system marks the tested PASS boards for the testing machine, which can effectively prevent the tested boards or bad boards from flowing into the hands of customers. The bad board error-proof box means that during the test, when the PASS board is tested, the test system outputs the signal that the box is opened; on the contrary, when the bad board is tested, the box is closed to allow the operator to correctly place the tested circuit board.
3. Establish a PPm quality system
At present, the PPm (Partspermillion, parts per million defect rate) quality system has begun to be widely used in PCB manufacturers. Among the many customers of our company, it is worth learning from the application of HitachiChemICal in Singapore and the results*. There are more than 20 people in this factory who are responsible for the statistical analysis of online PCB quality abnormalities and PCB quality abnormal returns. Using the statistical analysis method of SPC production process, each bad board and each returned defective board are classified and statistically analyzed, and combined with auxiliary tools such as microsectioning to analyze in which production process the bad and defective boards are produced. According to the statistical data results, we can solve the problems in the process purposefully.
4. Comparative test method
Some customers use two different brands of PCBs for comparative testing in different batches of PCBs, and track the PPm of the corresponding batches, so as to understand the performance status of the two testers, and then choose a better performance tester to test automotive PCBs.
5. Improve test parameters
Choose higher test parameters to strictly detect this kind of PCB. Because if you choose a higher voltage and threshold, increase the number of high-voltage read leakage, which can improve the detection rate of PCB defective boards. For example, a large Taiwanese-funded PCB company in Suzhou uses 300V, 30M, and 20 ohms to test automotive PCBs.
6. Periodically verify the parameters of the tester
After long-term operation of the tester, the internal resistance and other related test parameters will all deviate. Therefore, the machine parameters need to be adjusted regularly to ensure the accuracy of the test parameters. Test equipment is maintained in a considerable part of large PCB companies for half a year or a year, and internal performance parameters are adjusted. The pursuit of “zero defect” automotive PCB has always been the direction of the efforts of the majority of PCB people. However, due to the limitations of process equipment and raw materials, the world’s top 100 PCB companies are still exploring ways to reduce PPm.

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