LCD Module has been playing a more and more important part in our daily lives and has made our life more colorful. However, with the development of technology and more demands from customers, many kinds of LCD Modules have come into being, among which are graphic LCM, character LCM.
The graphic LCD TFT Module offered by SYNLINK TECHNOLOGY COMPANY allows users to have a better vision of the images. Once receiving order from the user, the graphic LCM responds quickly and drives the operation of LCD and then required graphics will be displayed on the screen. Take camera for example, with our graphic LCM, users can see their photos more clearly.
Our character LCD Module provides users with more flexibility in displaying characters. Take ammeter and water meter for example, characters can be read more clearly and accurately with our character LCM. What is more, the character LCM offered by our company can work under different environments, ranging from high temperature to low temperature below zero. Also, it can be subject to tough environment like humidity. Therefore, with our character LCM, users can easily check the reading of the water meter and will surely bring a lot of convenience to their daily lives.
2011年6月12日星期日
2011年6月9日星期四
UART display module
The RS232 LCD module is a kind of serial display module that based on EIA-RS-232 standard. This standard is widely used in serial communication, like PC peripheral equipments, such as teletype and modem. LCD module that works in UART pattern is also called UART LCD module. That is to say, every serial LCD module and TFT LCM with RS232 compatible is a UART LCD. Its instinct advantage lies in no synchronization signal transferring by another line, which is suitable for kinds of application and systems that require low power consumption and Simplified circuits.
However, the synchronization signal is added before and after data transmitting. This may cause a slice delay of response potentially. LCD module manufacturers have developed several reliable technologies to assure its real-time performance. A mainstream technology is based on utilizing the built-in MCU, by using a simple but powerful command-set. As a classic solution of time-space and time-processing swap, this lead to the balance of developing time and cost. Some Graphic lcd module companies in China have already advanced an approach to settle this down. By introducing intelligence into UART TFT Display Module, developers can finish their design within a predictable time period, by figuring out specified program to send the fixed commands to LCD display module.
However, the synchronization signal is added before and after data transmitting. This may cause a slice delay of response potentially. LCD module manufacturers have developed several reliable technologies to assure its real-time performance. A mainstream technology is based on utilizing the built-in MCU, by using a simple but powerful command-set. As a classic solution of time-space and time-processing swap, this lead to the balance of developing time and cost. Some Graphic lcd module companies in China have already advanced an approach to settle this down. By introducing intelligence into UART TFT Display Module, developers can finish their design within a predictable time period, by figuring out specified program to send the fixed commands to LCD display module.
2011年6月7日星期二
Monochrome data transfer
Data transfer function is pretty necessary for TFT LCD module. Recently, one of our customers asked for a new feature: monochrome data transfer. In his application, monochrome image data needs to be transferred from LCD display of the aquarium computer to TFT LCD module for remote control. He prints 244 pixels in each line, for 64 lines. Old command for data transfer is ok for this requirement, but it is very slow because the user has to transfer for each line more than 500 Bytes, which takes 40ms at 115200 baud rate. Each printed point needs 2 bytes for the color, but actually there are only 2 colors: background and foreground. So it is very beneficial to have a command which allows the transfer of monochrome picture data (patterns). To solve the problem, the feature is developed.
There are some important points to consider when creating the new command for transferring monochrome data. It should be possible that the count of transferred pixels is not always a multiple of 8 (8, 16, 24 ?, e.g. if the user prints 122 and 244 pixels, it is not enough to count the transferred bytes of monochrome data (bit masks).
There shall be 2 solutions for this:
a) the amount of pixels to be printed have to be transmitted also after coordinates
b) create 2 different commands: one command prints the set bits with foreground color, the other with background color, the clear bits do not have any affect (transparent)
When the user wants a specific color under the line of monochrome data, the user can use the line-command before sending the monochrome data to TFT LCD module.
There are some important points to consider when creating the new command for transferring monochrome data. It should be possible that the count of transferred pixels is not always a multiple of 8 (8, 16, 24 ?, e.g. if the user prints 122 and 244 pixels, it is not enough to count the transferred bytes of monochrome data (bit masks).
There shall be 2 solutions for this:
a) the amount of pixels to be printed have to be transmitted also after coordinates
b) create 2 different commands: one command prints the set bits with foreground color, the other with background color, the clear bits do not have any affect (transparent)
When the user wants a specific color under the line of monochrome data, the user can use the line-command before sending the monochrome data to TFT LCD module.
Re-synchronization is not possible
For our Synchronization solution, some customers are worried that the reaction time of the LCD module will be longer than that under normal conditions in case of re-synchronization since they holds the CPU's sending commands to LCD module can not rely on the fast reaction time of the display (approx. 2 msec per command).
In fact, this situation doesn't exist at all because processing speed of CPU is much faster, compared with communication speed. The other customers think for a save communication path between CPU and LCD module there should be some interaction to let the CPU know what has happened, otherwise the CPU will not know how many frames were lost. Because of the automatic re-synchronization, which takes place within the display, the information of the pointer status will be overwritten. They ask for interaction between CPU and LCD module which can't be realized by automatic re-synchronization.
This problem does exist. The solution is by "checking-response" way. But if this method is applied, the protocol will be very complicated and troublesome. For example, if some response is lost, the command needs to be re-sent. Furthermore, the command re-sent shall be numbered one by one. In this way, it is not meaningful to use our display module, since the biggest feature of our product is its easy operation.
In fact, this situation doesn't exist at all because processing speed of CPU is much faster, compared with communication speed. The other customers think for a save communication path between CPU and LCD module there should be some interaction to let the CPU know what has happened, otherwise the CPU will not know how many frames were lost. Because of the automatic re-synchronization, which takes place within the display, the information of the pointer status will be overwritten. They ask for interaction between CPU and LCD module which can't be realized by automatic re-synchronization.
This problem does exist. The solution is by "checking-response" way. But if this method is applied, the protocol will be very complicated and troublesome. For example, if some response is lost, the command needs to be re-sent. Furthermore, the command re-sent shall be numbered one by one. In this way, it is not meaningful to use our display module, since the biggest feature of our product is its easy operation.
Samsung launch the world's best performance 32GB DDR3 Memory Modules
The original 40-nm 32GB DDR3 memory in 2011 by the U.S. CES International Consumer Electronics Show Innovation Award selection of environmentally friendly products, this contrast seems the server 30 nano 32GB DDR3 modules can be described as the world's most superior products, which Samsung implements the server marks the first special, super energy-efficient 30-nanometer 32GB DDR3 memory module production. Samsung's 4Gb DRAM current production process from the server to the notebook cover a range of products, industry sources said that these new products or will lead from the high-performance, high-capacity server to the rapid development of the mobile market.
In addition, using a 30 nanometer 2Gb DDR3 DRAM display module production compared to 30 nano-4Gb DDR3 DRAM modules for performance notebooks are still prominent, the former has the same 1.5 V / 2.133Mbps high performance. The 30 nano 4Gb DDR3 DRAM production capacity of more than 40 units of nano 4Gb DDR3 DRAM higher than 50%, it will have high-performance, low power and high-end server market the next generation of notebooks to replace 40 of Nano 4Gb DDR3 DRA At the same time, creating new demand.
In fact, since February 2011, the Samsung has volume 30 nanometer (1 nanometer is equivalent to 10 billionths of a meter) 4Gb DDR3 DRAM, and in April began to supply 16GB modules, followed by the beginning of this month 32GB DDR3 module, and provides high-end notebook with a 30-nanometer 8GB DDR3 modules, built into high-performance, high-capacity "green DDR3 product line."
Some analysts believe that starting from March 2011, Samsung took only one month to move to achieve a 4Gb DRAM to 4Gb DRAM mass production of large-capacity computer technology tft module production, indicating that the mobile market to the enterprise from server market, Samsung will be the most advanced 30-nanometer DRAM to promote business-to-low-power "green memory" needs.
Currently, Samsung in order to further carry out the "green storage" promotion, with major server manufacturers and computer companies to strengthen technical exchanges and cooperation. Meanwhile, this year's "Semiconductor CIO Forum", Samsung will work with the United States and chief information officer of multinational companies in Asia to share the green business (re-creation of value through the green memory) the fruits, at the same time, by creating more broad opportunities for cooperation to complete the "Green IT system."
Samsung Electronics Semiconductor Business Unit, Head of Strategic Marketing for Storage End Hsun Hung Vice Chairman of the reporters said, "Samsung's first production in February last year, Nano 4Gb DDR3 DRAM 40 after just one year's time to successful implementation of 30 nm Class 4Gb DDR3 DRAM mass production. can say that we in the enterprise server market and other high-end mobile market DRAM market to ensure the highest level of competitiveness of products and solutions. In order to adapt to the rapid development of green IT market, we plan the next half '20 launch ultra power-saving-type nano 4Gb DRAM '. After that, we also continue to adhere to the highest performance to customers' green memory solutions', and sustainable development of the memory market. "
Reporter learned from Samsung Electronics, Samsung Electronics to The 30-nanometer production as an opportunity to 4Gb DRAM, will greatly increase the proportion of large-capacity DRAM production, for the latest in 2012, this proportion will increase to 10 for all DRAM production % or more. According to market research survey, 4Gb DRAM market share gradually expanded from 2011 to 2012, 2013, 2014, will expand to 10%, 35%, 57%, has become the main force in DRAM market .
In addition, using a 30 nanometer 2Gb DDR3 DRAM display module production compared to 30 nano-4Gb DDR3 DRAM modules for performance notebooks are still prominent, the former has the same 1.5 V / 2.133Mbps high performance. The 30 nano 4Gb DDR3 DRAM production capacity of more than 40 units of nano 4Gb DDR3 DRAM higher than 50%, it will have high-performance, low power and high-end server market the next generation of notebooks to replace 40 of Nano 4Gb DDR3 DRA At the same time, creating new demand.
In fact, since February 2011, the Samsung has volume 30 nanometer (1 nanometer is equivalent to 10 billionths of a meter) 4Gb DDR3 DRAM, and in April began to supply 16GB modules, followed by the beginning of this month 32GB DDR3 module, and provides high-end notebook with a 30-nanometer 8GB DDR3 modules, built into high-performance, high-capacity "green DDR3 product line."
Some analysts believe that starting from March 2011, Samsung took only one month to move to achieve a 4Gb DRAM to 4Gb DRAM mass production of large-capacity computer technology tft module production, indicating that the mobile market to the enterprise from server market, Samsung will be the most advanced 30-nanometer DRAM to promote business-to-low-power "green memory" needs.
Currently, Samsung in order to further carry out the "green storage" promotion, with major server manufacturers and computer companies to strengthen technical exchanges and cooperation. Meanwhile, this year's "Semiconductor CIO Forum", Samsung will work with the United States and chief information officer of multinational companies in Asia to share the green business (re-creation of value through the green memory) the fruits, at the same time, by creating more broad opportunities for cooperation to complete the "Green IT system."
Samsung Electronics Semiconductor Business Unit, Head of Strategic Marketing for Storage End Hsun Hung Vice Chairman of the reporters said, "Samsung's first production in February last year, Nano 4Gb DDR3 DRAM 40 after just one year's time to successful implementation of 30 nm Class 4Gb DDR3 DRAM mass production. can say that we in the enterprise server market and other high-end mobile market DRAM market to ensure the highest level of competitiveness of products and solutions. In order to adapt to the rapid development of green IT market, we plan the next half '20 launch ultra power-saving-type nano 4Gb DRAM '. After that, we also continue to adhere to the highest performance to customers' green memory solutions', and sustainable development of the memory market. "
Reporter learned from Samsung Electronics, Samsung Electronics to The 30-nanometer production as an opportunity to 4Gb DRAM, will greatly increase the proportion of large-capacity DRAM production, for the latest in 2012, this proportion will increase to 10 for all DRAM production % or more. According to market research survey, 4Gb DRAM market share gradually expanded from 2011 to 2012, 2013, 2014, will expand to 10%, 35%, 57%, has become the main force in DRAM market .
2011年6月2日星期四
Serial LCD module as solution for cash terminal
Our serial LCD module is suitable for different applications of various industries. For example, a customer likes to build a display into a cash terminal. He has a save interaction between the outside world and the CPU (SSL or something similar). But communication between CPU and the display must be saved. All communication bytes are well specified in the command documentation and the documentation is freely available in the internet. However, this communication path is open; it is not safe at all.
Now, the bank house wants us to ensure that there is no way to manipulate the electronic parts within the cash terminal. Currently, it seems impossible because it is easy to decode the communication transfer on the RS232 interface since all codes can be obtained from the internet. By knowing the bytes transferred, it is possible to manipulate the output of the display without attacking the (save) CPU.
The solution is to add a password byte (or word) to the data transfer code, which is sent to the display. We called this procedure "user password". The password byte would be used by the serial LCD module to decode the incoming transfer bytes. So, even using a data logger, one cannot find out what type of transfer is going on between the CPU and the Serial lcd module, because one can not see any "clear text". Thus, attacking the RS232 interface is almost impossible and security communication can be guaranteed.
Now, the bank house wants us to ensure that there is no way to manipulate the electronic parts within the cash terminal. Currently, it seems impossible because it is easy to decode the communication transfer on the RS232 interface since all codes can be obtained from the internet. By knowing the bytes transferred, it is possible to manipulate the output of the display without attacking the (save) CPU.
The solution is to add a password byte (or word) to the data transfer code, which is sent to the display. We called this procedure "user password". The password byte would be used by the serial LCD module to decode the incoming transfer bytes. So, even using a data logger, one cannot find out what type of transfer is going on between the CPU and the Serial lcd module, because one can not see any "clear text". Thus, attacking the RS232 interface is almost impossible and security communication can be guaranteed.
2011年6月1日星期三
Password-protection feature
Password-protection feature of intelligent UART LCD module sometimes plays a very important role in some fields, such as bank system. The typical application is ATM.
It is necessary to protect the display itself against misuse, so it is recommended that the UART LCD module has a user-password, which has to be sent to the serial display terminal after power-on. Without the user-password the display will not show any picture. Besides, it is recommended that the UART LCD module has a supervisor-password. Without the supervisor-password the display will not readout the pictures stored in its memory, so this supervisor-password acts like a read-protection for the display-memory. Lastly, it is recommended that the UART LCD module has a diag-password. Without the diag-password the display will not change its picture memory, therefore this diagnostic password will act like a write-protection for the display-memory. The feature aims to provide service and displays to medical and instrumentation companies as well as to bank houses.
It is absolutely necessary to protect the UART LCD module and its memory from any manipulation or misuse. If there is no password-feature implemented, then there is almost no chance for the UART LCD module to go into the said fields. If customers have such requirements, we are in the position to revise our software and add password feature accordingly.
It is necessary to protect the display itself against misuse, so it is recommended that the UART LCD module has a user-password, which has to be sent to the serial display terminal after power-on. Without the user-password the display will not show any picture. Besides, it is recommended that the UART LCD module has a supervisor-password. Without the supervisor-password the display will not readout the pictures stored in its memory, so this supervisor-password acts like a read-protection for the display-memory. Lastly, it is recommended that the UART LCD module has a diag-password. Without the diag-password the display will not change its picture memory, therefore this diagnostic password will act like a write-protection for the display-memory. The feature aims to provide service and displays to medical and instrumentation companies as well as to bank houses.
It is absolutely necessary to protect the UART LCD module and its memory from any manipulation or misuse. If there is no password-feature implemented, then there is almost no chance for the UART LCD module to go into the said fields. If customers have such requirements, we are in the position to revise our software and add password feature accordingly.
订阅：
博文 (Atom)