amulet technologies 4.3 in. tft display free sample

2023-01-03 12:32:11

IPS (in-plane-switching) technology is an improvement on the traditional TFT display module with enhanced features and more widespread usability. IPS LCD monitors consist of the following high-end features.

amulet technologies 4.3 in. tft display free sample

Amulet’s smart color display GEMmodules™ are production ready, fully integrated GUI solutions that can significantly reduce time-to-market and initial project resource requirements for embedded product manufacturers. Compatible with GEMstudio Pro™, a complete GUI development environment and simulator, Amulet GEMmodules can be easily programmed with smartphone-like graphical user interfaces with responsive touch, and can be effortlessly updated and modified.

Amulet offloads all of the GUI functions from the host processor, allowing any embedded product (including legacy products running 8-bit microprocessors) to get a graphically rich makeover, elevating a product’s user experience from average to amazing.

Amulet’s capacitive 7” GEMmodule (AM070RVS01) is a fully customizable, high-performance, touch screen display module with a 7” WVGA LCD and robust capacitive touch panel. This feature rich solution, including thick protective cover glass and water resistant and glove-enabled touch panel, provides the ideal attributes required in the embedded industrial and medical equipment markets.

Amulet’s resistive 7” GEMmodule (MK-070R) is a fully integrated, production ready solution with an integrated resistive touch panel, that allows embedded product manufacturers to implement a great looking GUI in record time, regardless of the size and speed of the microprocessor.

Amulet’s resistive 7” GEMstarter-kit (STK-070R) provides everything needed to create and drive a Graphical User Interface, including a 800 x 480 TFT LCD, an integrated touch panel and controller board, stylus, power supply, and USB PC interface cable. The GEMstarter-kit also comes with a free 30-Day Trial of GEMstudio Pro.

If you would like to purchase a resistive 7” GEMmodule (MK-070R) or GEMstarter-kit (STK-070R), please order online with one of our authorized distributors:

Amulet’s capacitive 4.3” GEMmodule (MK-CY-043) consists of a fully integrated drop-in solution that allows customers to implement a GUI with smartphone-like look and feel at record time-to-market. The modules have gesture support and can be programmed using GEMstudio Pro. With Cypress TrueTouch™ technology, this module provides unparalleled signal-to-noise ratio and excellent touch performance.

Amulet’s capacitive 4.3” GEMstarter-kit (STK-CY-043) provides everything needed to create and drive a Graphical User Interface, including a 480 x 272 TFT LCD, a capacitive touch sensor, removable stands, and USB PC interface cable.The GEMstarter-kit also comes with a free 30-Day Trial of GEMstudio Pro.

If you would like to purchase a capacitive 4.3” GEMmodule (MK-CY-043) or GEMstarter-kit (STK-CY-043), please order online with one of our authorized distributors:

Amulet’s resistive 4.3” GEMmodule (MK- 043R) is a fully integrated WQVGA production color display module that supports a variety of embedded control interface applications. Featuring the Amulet GEM Graphical OS Chip™ for color displays, the module supports GIF, JPEG and PNG graphic formats in 24-bit color, plus 8-bit alpha blending found in high-end consumer electronic products.

Amulet’s resistive 4.3” GEMstarter-kit (STK-043R) provides everything needed to create and drive a Graphical User Interface, including a 480 x 272 TFT LCD, an integrated touch panel and controller board, stylus, and USB PC interface cable.The GEMstarter-kit also comes with a free 30-Day Trial of GEMstudio Pro.

If you would like to purchase a resistive 7” GEMmodule (MK-070R) or GEMstarter-kit (STK-070R), please order online with one of our authorized distributors:

If you would like to purchase a resistive 4.3” GEMmodule (MK-043R) or GEMstarter-kit (STK-043R), please order online with one of our authorized distributors:

amulet technologies 4.3 in. tft display free sample

This display is a TFT-LCD module with an exceptionally bright IPS display.The Amulet AM043NBG01 display is a great solution for user interfaces used in consumer electronics. This display can also be used as a drop-in replacement to many popular LCDs in use, such as those from Tianma, Newhav...

amulet technologies 4.3 in. tft display free sample

If you want an all-in-one solution, this TFT display comes with a mounting bracket to make installation even easier. The LCD is a high resolution 800X480 IPS display with IPS technology, which delivers superior image quality, accurate color, and high contrast ratio at any angle. The built-in steel bracket provides grounding for the TFT"s frame to protect against vibrations and EMI, guarenteeing a clear stable image. The threaded standoffs on the bracket are compatible with any M3 screws and there are four rack height mounting holes. This Liquid Crystal Display is RoHS compliant and does not include a touch panel.

Adjust the length, position, and pinout of your cables or add additional connectors. Get a cable solution that’s precisely designed to make your connections streamlined and secure.

Choose from a wide selection of interface options or talk to our experts to select the best one for your project. We can incorporate HDMI, USB, SPI, VGA and more into your display to achieve your design goals.

Equip your display with a custom cut cover glass to improve durability. Choose from a variety of cover glass thicknesses and get optical bonding to protect against moisture and debris.

amulet technologies 4.3 in. tft display free sample

AMOLED (active-matrix organic light-emitting diode, OLED display device technology. OLED describes a specific type of thin-film-display technology in which organic compounds form the electroluminescent material, and active matrix refers to the technology behind the addressing of pixels.

An AMOLED display consists of an active matrix of OLED pixels generating light (luminescence) upon electrical activation that have been deposited or integrated onto a thin-film transistor (TFT) array, which functions as a series of switches to control the current flowing to each individual pixel.

Typically, this continuous current flow is controlled by at least two TFTs at each pixel (to trigger the luminescence), with one TFT to start and stop the charging of a storage capacitor and the second to provide a voltage source at the level needed to create a constant current to the pixel, thereby eliminating the need for the very high currents required for passive-matrix OLED operation.

TFT backplane technology is crucial in the fabrication of AMOLED displays. In AMOLEDs, the two primary TFT backplane technologies, polycrystalline silicon (poly-Si) and amorphous silicon (a-Si), are currently used offering the potential for directly fabricating the active-matrix backplanes at low temperatures (below 150 °C) onto flexible plastic substrates for producing flexible AMOLED displays.

AMOLED was developed in 2006. Samsung SDI was one of the main investors in the technology, and many other display companies were also developing it. One of the earliest consumer electronics products with an AMOLED display was the BenQ-Siemens S88 mobile handsetiriver Clix 2 portable media player.Nokia N85 followed by the Samsung i7110 - both Nokia and Samsung Electronics were early adopters of this technology on their smartphones.

Manufacturers have developed in-cell touch panels, integrating the production of capacitive sensor arrays in the AMOLED module fabrication process. In-cell sensor AMOLED fabricators include AU Optronics and Samsung. Samsung has marketed its version of this technology as "Super AMOLED". Researchers at DuPont used computational fluid dynamics (CFD) software to optimize coating processes for a new solution-coated AMOLED display technology that is competitive in cost and performance with existing chemical vapor deposition (CVD) technology. Using custom modeling and analytic approaches, Samsung has developed short and long-range film-thickness control and uniformity that is commercially viable at large glass sizes.

The amount of power the display consumes varies significantly depending on the color and brightness shown. As an example, one old QVGA OLED display consumes 0.3 watts while showing white text on a black background, but more than 0.7 watts showing black text on a white background, while an LCD may consume only a constant 0.35 watts regardless of what is being shown on screen.

AMOLED displays may be difficult to view in direct sunlight compared with LCDs because of their reduced maximum brightness.Super AMOLED technology addresses this issue by reducing the size of gaps between layers of the screen.PenTile technology is often used for a higher resolution display while requiring fewer subpixels than needed otherwise, sometimes resulting in a display less sharp and more grainy than a non-PenTile display with the same resolution.

The organic materials used in AMOLED displays are very prone to degradation over a relatively short period of time, resulting in color shifts as one color fades faster than another, image persistence, or burn-in.

As of 2010, demand for AMOLED screens was high and, due to supply shortages of the Samsung-produced displays, certain models of HTC smartphones were changed to use next-generation LCD displays from the Samsung-Sony joint-venture SLCD in the future.

Flagship smartphones sold in 2020 and 2021 used either a Super AMOLED. Super AMOLED displays, such as the one on the Samsung Galaxy S21+ / S21 Ultra and Samsung Galaxy Note 20 Ultra have often been compared to IPS LCDs, found in phones such as the Xiaomi Mi 10T, Huawei Nova 5T, and Samsung Galaxy A20e.ABI Research, the AMOLED display found in the Motorola Moto X draws just 92 mA during bright conditions and 68 mA while dim.

"Super AMOLED" is a marketing term created by Samsung for an AMOLED display with an integrated touch screen digitizer: the layer that detects touch is integrated into the display, rather than overlaid on top of it and cannot be separated from the display itself. The display technology itself is not improved. According to Samsung, Super AMOLED reflects one-fifth as much sunlight as the first generation AMOLED.One Glass Solution (OGS).

Future displays exhibited from 2011 to 2013 by Samsung have shown flexible, 3D, transparent Super AMOLED Plus displays using very high resolutions and in varying sizes for phones. These unreleased prototypes use a polymer as a substrate removing the need for glass cover, a metal backing, and touch matrix, combining them into one integrated layer.

Also planned for the future are 3D stereoscopic displays that use eye-tracking (via stereoscopic front-facing cameras) to provide full resolution 3D visuals.

Lee, Hyunkoo; Park, Insun; Kwak, Jeonghun; Yoon, Do Y.; Kallmann, Changhee Lee (2010). "Improvement of electron injection in inverted bottom-emission blue phosphorescent organic light emitting diodes using zinc oxide nanoparticles". Applied Physics Letters. 96 (15): 153306. Bibcode:2010ApPhL..96o3306L. doi:10.1063/1.3400224.

Kim, Yang Wan; Kwak, Won Kyu; Lee, Jae Yong; Choi, Wong Sik; Lee, Ki Yong; Kim, Sung Chul; Yoo, Eui Jin (2009). "40 Inch FHD AM-OLED Display with IR Drop Compensation Pixel Circuit". SID Symposium Digest of Technical Papers. 40: 85. doi:10.1889/1.3256930. S2CID 110871831.

Lee, Myung Ho; Seop, Song Myoung; Kim, Jong Soo; Hwang, Jung Ho; Shin, Hye Jin; Cho, Sang Kyun; Min, Kyoung Wook; Kwak, Won Kyu; Jung, Sun I; Kim, Chang Soo; Choi, Woong Sik; Kim, Sung Cheol; Yoo, Eu Jin (2009). "Development of 31-Inch Full-HD AMOLED TV Using LTPS-TFT and RGB FMM". SID Symposium Digest of Technical Papers. 40: 802. doi:10.1889/1.3256911. S2CID 110948118.

Hamer, John W.; Arnold, Andrew D.; Boroson, Michael L.; Itoh, Masahiro; Hatwar, Tukaram K.; Helber, Margaret J.; Miwa, Koichi; Levey, Charles I.; Long, Michael; Ludwicki, John E.; Scheirer, David C.; Spindler, Jeffrey P.; Van Slyke, Steven A. (2008). "System design for a wide-color-gamut TV-sized AMOLED display". Journal of the Society for Information Display. 16: 3. doi:10.1889/1.2835033. S2CID 62669850.

Lin, Chih-Lung; Chen, Yung-Chih (2007). "A Novel LTPS-TFT Pixel Circuit Compensating for TFT Threshold-Voltage Shift and OLED Degradation for AMOLED". IEEE Electron Device Letters. 28 (2): 129. Bibcode:2007IEDL...28..129L. doi:10.1109/LED.2006.889523. S2CID 11194344.

Sarma, Kalluri R.; Chanley, Charles; Dodd, Sonia R.; Roush, Jared; Schmidt, John; Srdanov, Gordana; Stevenson, Matthew; Wessel, Ralf; Innocenzo, Jeffrey; Yu, Gang; O"Regan, Marie B.; MacDonald, W. A.; Eveson, R.; Long, Ke; Gleskova, Helena; Wagner, Sigurd; Sturm, James C. (2003). "Active-matrix OLED using 150°C a-Si TFT backplane built on flexible plastic substrate (Proceedings Paper)". SPIE Proceedings. 5080: 180. doi:10.1117/12.497638. S2CID 12958469. "Archived copy" (PDF). Archived from the original (PDF) on 28 June 2011. Retrieved 2010-09-06.link)

Reid Chesterfield, Andrew Johnson, Charlie Lang, Matthew Stainer, and Jonathan Ziebarth, "Solution-Coating Technology for AMOLED Displays Archived 16 May 2011 at the Wayback Machine", Information Display Magazine, January 2011.

Dong, Mian; Choi, Yung-Seok Kevin; Zhong, Lin (2009). "Power modeling of graphical user interfaces on OLED displays". Proceedings of the 46th Annual Design Automation Conference on ZZZ - DAC "09. p. 652. doi:10.1145/1629911.1630084. ISBN 9781605584973. S2CID 442526.

"AMOLED vs LCD: differences explained". Android Authority. 8 February 2016. Archived from the original on 27 December 2016. Retrieved 6 February 2017.

Tim Carmody (10 November 2010). "How Super AMOLED displays work". Wired. Wired.com. Archived from the original on 28 September 2012. Retrieved 10 October 2012.

Ashtiani, Shahin J.; Reza Chaji, G.; Nathan, Arokia (2007). "AMOLED Pixel Circuit With Electronic Compensation of Luminance Degradation". Journal of Display Technology. 38 (1): 36. Bibcode:2007JDisT...3...36A. doi:10.1109/JDT.2006.890711. S2CID 44204246.

"AMOLED vs LCD: Which screen is best for your phone?". digitaltrends.com. 29 August 2014. Archived from the original on 29 March 2018. Retrieved 6 May 2018.

Kelly, Gordon. "Samsung Report "Confirms" Significant Galaxy S9 Design Changes". forbes.com. Archived from the original on 1 April 2018. Retrieved 6 May 2018.

amulet technologies 4.3 in. tft display free sample

The Amulet Display API is available in VI Package Manager for LabVIEW 2013 or later. Installing the Amulet Display API will install the VIs to the palette, examples in Example Finder, and prompt you to install GEMstudio™.

Following GEMstudio™ installation, you will be prompted for a registration name and key. If you purchased NI Part Number 783305-01, this registration key was sent to you via email following the purchase. If you cannot find the email, please check your spam box to ensure the email was not accidentally marked as spam. Otherwise, please locate your order number from the purchase order and contact NI.

Each example consists of a GEMstudio™ and LabVIEW project. To locate the GEMstudio™ projects, navigate to \GEMstudio Pro\LabVIEW Demos. To locate the LabVIEW projects, search for Amulet in the NI Example Finder. Each LabVIEW example explains which GEMstudio™ project needs to be deployed to your Amulet display module prior to running the example.

During the development process, it is recommended that the Amulet Display module be connected to the development computer via USB. The USB drivers will be installed when GEMstudio™ is installed.

GEMstudio™ allows for the creation of a graphical user interface through a drag-and-drop experience. Complete human-machine interface (HMI) applications can be tested and deployed through GEMstudio™.

Launch LCD Profile Editor - This option is only present in the licensed version of GEMstudio™. It allows you to create a new LCD profile if you are using a custom LCD display with the display module.

In this section, you will build a fully-functional user interface in GEMstudio™. In later sections, you will deploy this interface to the touch panel and develop LabVIEW code to communicate with the touch panel.

This tutorial guides you to select a numeric value using a slider. LabVIEW will read the value of the slider, calculate 100 random numbers in the range 0 – slider value, and send it for display on the touch panel on a LineGraph. In addition, the current time will be display on the touch panel.

1 If your screen will be installed relative to the native orientation (ribbon cables on the bottom), set the LCD Rotation to the appropriate value. However, setting this value to any value other than No will require the Amulet OS to continuously redraw and recalculate the interface and touch panel.

The GEMstudio™ interface will load with a new project using the properties specified in the Project Properties dialog. The right side consists of the canvas that allows for ability to design the user interface via drag-and-drop while the left side consists of the property pane that lists the details and functions for each widget and page created.

In order to enable the LabVIEW Amulet Display API to read the value of the slider, the value of the slider must be written to the internal memory of the display module via a function call. Click on the href property to open the Event Method List window to create this function.

The Amulet OS makes space in the internal memory available to the module via internal RAM. Table 2 lists the number of internal RAM variables and data types that the OS provides.

The Event Method List window can be used to define function calls that allow widgets to read or write from internal RAM. For more information on the Amulet internal RAM, please see Amulet"s website.

In the Event Method List window, press tab to show the autocomplete window. It is recommended that you complete the function call prior to providing parameters or else you cannot autocomplete the function call.

This function call specifies that the value of the internal RAM byte variable 0 will be set by the value of the slider. The Amulet Display API in LabVIEW can read the current value of the slider by reading from this variable.

The slider does not include the ability to display the current value on the interface. A NumericField widget can be used to display numeric information on the front panel. GEMstudio™ allows us to link the NumericField to the value of the slider via the internal RAM without host intervention.

The numeric field should display the current value of the slider, which is residing in byte 0 of the internal RAM. Create a function call to get the value of byte 0 of the internal RAM by clicking on the href property to open the Event Method List window.

Test the functionality of the interface thus far by running the interface in the GEMstudio™ emulator. Push Run in the lower right corner of GEMstudio™.

Move the slider in the emulator. The numeric field should update with the correct value of the slider as it is moved. You may need to reposition the widgets on the canvas so they do not overlap.

Numeric data can be exchanged between the Amulet display module and the host application by using either bytes, words, or colors. To display string data, the string data type should be used. In this project, the current time will be sent from the host as a string and displayed on the touch panel.

The string field should display the current time that the host placed in string variable 0 of the internal RAM. Create a function call to read the value of string variable 0 by clicking on the href property to open the Event Method List window.

To finish the interface, display a graph of 100 random numbers generated by the host application. GEMstudio™ allows for arrays by utilizing consecutive internal RAM variables starting at a specific index. The host application will place 100 16-bit numbers in the internal RAM starting at index 0.

Display the data from the internal RAM on the graph by creating a function call that reads 100 values starting at word variable 0. Click on the href property to open the Event Method List window.

Test the interface to make sure the slider still works as expected. The graph will not display data since there is no host application yet, but it should display the axis.

After testing the interface, it can be programmed onto the Amulet Display module flash through GEMstudio™. Programming the HMI onto the display will allow the interface to start up automatically on module powerup.

Select the COM port the Amulet Display module is connected to. If the module is connected via USB, it will be the Amulet USB to Serial Converter. If the display module is not listed, ensure that the driver was installed correctly.

Push Program Project. If the OS settings on the Amulet Display module are incorrect, you will be prompted to reprogram the OS. If so, reprogram the OS and then reprogram the flash with your project.

The Amulet Display API in LabVIEW 2013 or later enables communication between a host application and the Amulet Display module connected via USB or serial. Because the communication with the Amulet Display module occurs via USB or Serial with NI-VISA, this API can be used on a host computer or a real-time target. This section will create a LabVIEW application that will communicate with the interface designed in the previous section.

Place an Amulet VISA Open and create a control for the VISA resource name. This will open a connection to the Amulet Display module through the COM port you specify.

Place an Amulet Write InternalRAM. This polymorphic VI can write to any of the Amulet internal RAM variables. Write the current time to string variable 0 by selecting the Amulet Write String instance of the polymorphic VI. The current time can be obtained by using Get Date/Time in Seconds in conjunction with Format Date/Time String. Wire the Amulet Resource Name and error wires from Amulet VISA Open.

Place an Amulet Read InternalRAM. This polymorphic VI can read from any of the Amulet internal RAM variables. Read the value of the slider from byte variable 0 by selecting the Amulet Read Byte instance of the polymorphic VI. Wire the Amulet Resource Name and error wires from Amulet Write InternalRAM.

Place an Amulet Write InternalRAM. Convert the double-precision random numbers to unsigned words and write it to the Amulet internal RAM words starting at variable 0 using the Amulet Write Word Array instance of the polymorphic VI. The conversion to unsigned words can be done using the To Unsigned Word Integer primitive. Wire the Amulet Resource Name and error wires from Amulet Read InternalRAM.

Place an Amulet VISA Close. This will close the connection to the Amulet Display module. Wire the Amulet Resource Name and error wires from Amulet Write InternalRAM. Display any errors at the end with a Simple Error Handler.

Drag a while loop around the Amulet Read/Write InternalRAM Vis and supporting code. This program should continuously generate data until directed to stop by the user. Add a control to the condition terminal.

The current time and 100 points of random data should be display on the interface. As the slider value is changed, the relative amplitude of the random data should also change.

During the development process, it is recommended that the user interface be deployed to the module through GEMstudio™ and the USB port. As deployment nears, embedded deployment is the preferred deployment method since the module will most likely be integrated into the system and a USB connection not ideal due to lack of retention.

The Amulet Display module contains a mass termination connector on the bottom that allows for the development of a custom hardware interface such as a PCB or cable into the final application. This mass termination connector provides access to the serial communication pins, power, and DIO available within the Amulet OS. NI also offers an interface board (NI Part Number 783306-01) that allows data to be transferred via a DB9 serial connector with built-in retention and a power connector that enables the display to be connected to the same power supply input voltage as a RIO-based product.

To programmatically deploy the user interface using the Amulet Display API in LabVIEW, a .PDB display file can be created in GEMstudio™. The PDB file contains all the files required to remotely program the entire user interface and can be created in GEMstudio™ by choosing File»Save As Production File. This file can then be remotely deployed or transferred to the target and locally deployed.

amulet technologies 4.3 in. tft display free sample

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (4.3" diagonal) bright (8 white-LED backlight) and colorfu 480x272 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel with controller XPT2046 attached by default and a optional capacitive touch panel with controller FT5206 attached by default, so you can detect finger presses anywhere on the screen and doesn"t require pressing down on the screen with a stylus and has nice glossy glass cover.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (UNO/Due/Mega 2560).

This display shield has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. You can connect more sensors, buttons and LEDs.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

If you"ve had a lot of Arduino DUEs go through your hands (or if you are just unlucky), chances are you’ve come across at least one that does not start-up properly.The symptom is simple: you power up the Arduino but it doesn’t appear to “boot”. Your code simply doesn"t start running.You might have noticed that resetting the board (by pressing the reset button) causes the board to start-up normally.The fix is simple,here is the solution.

amulet technologies 4.3 in. tft display free sample

The aim of this study was to investigate the relevance of MTF measurements in medical physics QC testing. First, a systematic change in MTF for CR detectors was studied to see whether a significant change in the MTF leads to a measurable change in a technical image quality parameter. The effect of an MTF change that was outside the limiting value of 10% set for the MTF between successive tests

Compared with CR1, there was a 20% reduction in fMTF0.5 for CR2. While there was a consistent trend to lower detectability for CR2, none of the changes were significant. The practical consequence is that tracking the MTFf0.5 value of the MTF provides a valuable means of detecting a loss in sharpness when image quality metrics with the CDMAM and the L1 phantom did not yet show a significant change/reduction. This gives the MTF measurement the status of a warning test: tracking detector MTF over time can point to changes prior to any significant change in a technical quality parameter.

The curves for PC in Fig. 5(b) cross, showing higher PC for CR1 for the smaller details (e.g., 0.12-mm diameter) and higher PC for the ∼0.15-mm diameter microcalcification for CR2. One might conclude that the improved MTF and SNR transfer for spatial frequencies above ∼2mm−1 [see the DQE graph in Fig. 4(d)] leads to higher PC at small detail diameter for CR1. The lower NNPS values at higher spatial frequencies for CR2 might mean reduced image noise at these frequencies, and for larger details this could lead to improved detection (PC). We cannot be definitive about this given the large error bars on the L1 data.

To make technical image quality test objects more sensitive to changes in sharpness, one could include more finely detailed features, although one could argue that the 100μm details in CDMAM are sufficiently fine while remaining clinically relevant. One could indeed try to improve the phantoms or the evaluation methods by improving sensitivity or reducing the variance on the measurements, however this generally involves the acquisition of more images. Furthermore, after a certain point, acquiring additional images only leads to a small reduction in the variance of the measured parameter, and it becomes impractical for routine QA work.,

Turning to the reproducibility data, these results have implications for QC protocols. Measurement of MTF is often specified as optional in QC protocols; the reasons cited for this include the difficulty in accessing the required image types (for processing or equivalent), the lack of experience in terms of calculation or interpretation of the results, and the lack of evidence that MTF measurements are a useful addition to a QC protocol. The latter was the direct trigger of the current study. The second study shows that MTF measurements—and by implication, the x-ray detectors themselves—have excellent long-term reproducibility, with a typical COV of 4% (see Table 4). This supports early work on the reproducibility of quantitative measurements (including the MTF) and their implementation in a QC program, made for just seven DM systems.,

Systematic differences in MTF are expected between systems that employ different technologies. The detector presampling MTF is a product of the MTF of the different stages, and for DM detectors this is the MTF of the x-ray sensitive (conversion) layer and the MTF of the signal collecting aperture (typically the pixel).,Table 2), results that are consistent with previous work.,

We expect some variations in the MTF curves of different systems (i.e., device by device variation) of the same brand, possibly due to manufacturing variations/tolerances and local operating conditions. The data in this study show that typical values can be produced and that some models have MTF curves that vary more than for other models. As an example, large differences were seen between different Fuji Amulet models, while much lower variability was seen for the Fuji Amulet Innovality MTF data. At the introduction of any new system, a careful assessment of the detector characteristics by the QC physicist, including MTF, provides valuable information on image sharpness. These data can be compared against the results in Table 4 for comparative benchmarking.

The 10% limiting value in the EUREF protocol applies to changes in fMTF0.5 between successive QC tests. This can be compared with the averaged absolute change in fMTF0.5 between tests in Table 5, which ranges between 1.2% and 5.1%, with an average for all systems of 3%. This implies that changes in MTF will generally not exceed the 10% limit. The limiting value in the EUREF protocol is designed to find sudden changes in MTF that occur between visits. The value of using a baseline value to catch gradual changes in a parameter is clearly seen in Fig. 7. Limiting values should ensure appropriate quality when met and/or alert the QC physicist of changes that are potentially detrimental to clinical image quality, if limits are exceeded. The good reproducibility demonstrated by these MTF data suggests that finding a change is straightforward; the difficulty comes in deciding at which point the change starts to potentially influence clinical performance. We also note that action levels involving a change from baseline to find changes in some parameters are in line with typical routine QC testing protocols,

The longitudinal analysis of the fMTF50 and MTFf5 as a function of time revealed that the MTF was changing gradually for a number of the GEHC Essential systems. This was further explored in the light of the first study for the CR detectors as follows: the threshold gold thickness (T) for the 0.1-mm diameter disk, normalized for MGD, for all DM systems was examined. To normalize for the influence of dose, T values were multiplied by the square root of the mean glandular dose calculated for the 50-mm PMMA block.,Fig. 8 and the data is summarized in Table 6 for the five Essential systems in this study. Regarding the other systems, no trend or systematic change in normalized threshold gold thickness was found for systems in which there was no change in MTF over time (data available on request).

Threshold gold thickness T normalized to 1 mGy, with confidence interval, and difference from baseline and between successive tests for the 0.1-mm gold disk. Threshold thicknesses are normalized to a mean glandular dose of 1 mGy. For each system, these data are for a single detector, i.e., from the first test with a given detector to the last test with that detector.

For four of the five systems, there is a change in fMTF0.5 from baseline that is >10%, but this is not consistently associated with a significant change in normalized threshold gold thickness. There are two systems with a significant change (non-overlapping confidence intervals) in threshold gold thickness: No 3 and No 5. The change in MTF may be related to the fact that CsI is hygroscopic,T, is somewhat different from that seen for the needle CR detectors, in which a 20% reduction in fMTF0.5 was associated with an increase in threshold gold thickness, but the change was not significant. We note that the detectors in the Essential units are robust and have been in service for a long time; one consequence of this is that baseline changes in fMTF0.5 can develop and be detected by MTF measurements. One could envisage normalizing the reduction in fMTF0.5 to some unit of time; this would lessen the influence of the age of the systems in cohort on the maximum baseline change. It must be stressed that, when evaluated at the clinical working point (i.e., at the clinical dose used for a 50-mm thick PMMA block), the unnormalized threshold gold thickness for the Essential units remained well within the image quality levels specified in the European Protocol.,

The data in Table 4 and Table 5 show that the MTF measurement method, as currently implemented in the Medical Physics QC service, yields results that are reproducible to a degree that a remedial action level of 10% between successive tests could be implemented – the question is whether this should be done. The action level should be chosen to avoid false alarms while still catching a meaningful reduction in system image quality. One must also bear in mind what kind of remedial action is available; a change of detector would clearly not be justified if there was a reduction in fMTF0.5 of for example 13%. Judged solely on the CR data, then the action level should be somewhat >20%, as even a 20% in fMTF0.5 did not cause a change in the technical (task-based) IQ metric. However, the GEHC Essential data are somewhat more mixed. Here, a significant increase in T was found for changes in fMTF0.5 of 6% and 20%. For the three other Essential systems, in which fMTF0.5 reduced by ∼15%, there was an increase in T, but this was not significant. It must be noted that threshold gold thickness is a multifactorial quantity, and thus factors other the MTF may be at play in these data, in contrast to the well-controlled CR data presented in the first study. Overall, the measurement of MTF offers a reproducible, additional check on the technical image quality results and highlights explicitly changes occurring within the x-ray detector.

The 10% level in the European Protocol is not a suspension level and should instead trigger an investigation of clinical image quality and a check that the system still meets the image quality criterion as evaluated by a contrast-detail test object. Additional checks could also be made on the NNPS, as changes in detector MTF directly influence image noise level.fMTF0.5 to trigger further investigation into system image quality. The system should be suspended from use only if the system cannot meet the Acceptable level for technical image quality within the Acceptable dose. Unless there is catastrophic blurring occurring within the detector, an MTF measurement alone cannot be used to make this decision.

amulet technologies 4.3 in. tft display free sample

Due to recent MOQ and delivery issues from liquid crystal suppliers (Merck), EDT is planning to use ODF type TFT (F035A07-601/602) as the second source of TFT (F03507-01D/02D, Empty type). The sample from the second source has been certified by EDT, so this TFT will be implemented in the running change.

In order to have better inventory control of Liquid crystal and polarizer, we have to integrate the material and advise the replaced items. Some items will be phased out due to less demand, and please refer to the following last buy schedule.

EDT is always committed to providing the best possible support and service to our customers but due to very low production demand, EDT have decided to announce EOL.

Powertip is just informed by the panel supplier Innolux that the 5.7" panel with resolution: 320*240 is scheduled to be phased out by May 31st of 2023.

Due to the aging of EDT Mono LCD production line and deteriorated production efficiency, we plan to move front end production to EDT"s contract partners instead in order to give continuous support of Mono LCD products.

EDT always commits to providing the best support and service to our customers, but due to the aging of EDT Mono LCD production line and deteriorated production efficiency, EDT

the aging of EDT Mono LCD production line, deteriorated production efficiency, and the AVANT IC (SDN0080G-QFPG+SDN8000G-QFPG & SCN6400G-QFPG+SCN0080G_AQFPG) will be EOL, EDT decided to announce the discontinuation of the parts.

Due to recent leadtime issue from the IC suppliers, EDT would like to introduce second source for these ICs to ensure continuous supply. Samples from the second source has been verified and qualified by EDT, therefore this IC will be implemented in the running change.

And in order to reduce electromagnetic interference, a GND pad will be added on the back of the PCB of the module. The new sample has passed EDT"s certification, so the TFT module will be implemented through running change.

amulet technologies 4.3 in. tft display free sample

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