swapxy tft display brands

Asia has long dominated the display module TFT LCD manufacturers’ scene. After all, most major display module manufacturers can be found in countries like China, South Korea, Japan, and India.

However, the United States doesn’t fall short of its display module manufacturers. Most American module companies may not be as well-known as their Asian counterparts, but they still produce high-quality display products for both consumers and industrial clients.

In this post, we’ll list down 7 best display module TFT LCD manufacturers in the USA. We’ll see why these companies deserve recognition as top players in the American display module industry.

STONE Technologies is a leading display module TFT LCD manufacturer in the world. The company is based in Beijing, China, and has been in operations since 2010. STONE quickly grew to become one of the most trusted display module manufacturers in 14 years.

Now, let’s move on to the list of the best display module manufacturers in the USA. These companies are your best picks if you need to find a display module TFT LCD manufacturer based in the United States:

Planar Systems is a digital display company headquartered in Hillsboro, Oregon. It specializes in providing digital display solutions such as LCD video walls and large format LCD displays.

Planar’s manufacturing facilities are located in Finland, France, and North America. Specifically, large-format displays are manufactured and assembled in Albi, France.

Another thing that makes Planar successful is its relentless focus on its customers. The company listens to what each customer requires so that they can come up with effective display solutions to address these needs.

What makes Microtips a great display module TFT LCD manufacturer in the USA lies in its close ties with all its customers. It does so by establishing a good rapport with its clients starting from the initial product discussions. Microtips manages to keep this exceptional rapport throughout the entire client relationship by:

Displaytech is an American display module TFT LCD manufacturer headquartered in Carlsbad, California. It was founded in 1989 and is part of several companies under the Seacomp group. The company specializes in manufacturing small to medium-sized LCD modules for various devices across all possible industries.

The company also manufactures embedded TFT devices, interface boards, and LCD development boards. Also, Displaytech offers design services for embedded products, display-based PCB assemblies, and turnkey products.

Displaytech makes it easy for clients to create their own customized LCD modules. There is a feature called Design Your Custom LCD Panel found on their site. Clients simply need to input their specifications such as their desired dimensions, LCD configuration, attributes, connector type, operating and storage temperature, and other pertinent information. Clients can then submit this form to Displaytech to get feedback, suggestions, and quotes.

Clients are assured of high-quality products from Displaytech. This is because of the numerous ISO certifications that the company holds for medical devices, automotive, and quality management. Displaytech also holds RoHS and REACH certifications.

A vast product range, good customization options, and responsive customer service – all these factors make Displaytech among the leading LCD manufacturers in the USA.

Products that Phoenix Display offers include standard, semi-custom, and fully-customized LCD modules. Specifically, these products comprise Phoenix Display’s offerings:

Phoenix Display also integrates the display design to all existing peripheral components, thereby lowering manufacturing costs, improving overall system reliability, and removes unnecessary interconnects.

Clients flock to Phoenix Display because of their decades-long experience in the display manufacturing field. The company also combines its technical expertise with its competitive manufacturing capabilities to produce the best possible LCD products for its clients.

True Vision Displays is an American display module TFT LCD manufacturing company located at Cerritos, California. It specializes in LCD display solutions for special applications in modern industries. Most of their clients come from highly-demanding fields such as aerospace, defense, medical, and financial industries.

The company produces several types of TFT LCD products. Most of them are industrial-grade and comes in various resolution types such as VGA, QVGA, XGA, and SXGA. Clients may also select product enclosures for these modules.

Slow but steady growth has always been True Vision Display’s business strategy. And the company continues to be known globally through its excellent quality display products, robust research and development team, top-of-the-line manufacturing facilities, and straightforward client communication.

All of their display modules can be customized to fit any kind of specifications their clients may require. Display modules also pass through a series of reliability tests before leaving the manufacturing line. As such, LXD’s products can withstand extreme outdoor environments and operates on a wide range of temperature conditions.

Cystalfontz America is a leading supplier and manufacturer of HMI display solutions. The company is located in Spokane Valley, Washington. It has been in the display solutions business since 1998.

Crystalfontz takes pride in its ISO 9001 certification, meaning the company has effective quality control measures in place for all of its products. After all, providing high-quality products to all customers remains the company’s topmost priority. Hence, many clients from small hobbyists to large top-tier American companies partner with Crystalfontz for their display solution needs.

We’ve listed the top 7 display module TFT LCD manufacturers in the USA. All these companies may not be as well-known as other Asian manufacturers are, but they are equally competent and can deliver high-quality display products according to the client’s specifications. Contact any of them if you need a US-based manufacturer to service your display solutions needs.

We also briefly touched on STONE Technologies, another excellent LCD module manufacturer based in China. Consider partnering with STONE if you want top-of-the-line smart LCD products and you’re not necessarily looking for a US-based manufacturer. STONE will surely provide the right display solution for your needs anywhere you are on the globe.

I just finished two solid days of work trying to get an HDMI LCD panel working with one of the inexpensive older model TFT LCD displays in a "Dual mode" configuration. There was a tremendous amount of help from this post, which got me most of the way there, but the infamous "last mile" still took me a while. I"m leaving some breadcrumbs here, as well as asking the group if anyone knows of a better way.

I am working on a device that uses a Raspberry Pi 4 as an embedded controller. For output, I need an 2K DSI LCD w/ its own HDMI adapter (Sharp LS055R1SX04, about $65 USD), as well as an inexpensive TFT LCD used for a basic touch user interface. The TFT LCD, which uses an ILI9341 LCD controller and an ads7846 touchscreen controller, can be had for about $10 USD. The Pi was flashed with the latest Raspberry Pi OS 32 bit then updated, so everything is current as of this writing (March 2021).

Initial configuration of the display worked with little issue. The HDMI adapter for the Sharp LCD works at 50 Hz only, so it requires custom timings. The TFT LCD uses the same controller chips as the original 3.5" Raspberry Pi LCD, so I was able to activate it with the rpi-display dtoverlay.

Booting with the above correctly revealed two framebuffer devices listed with ls -l /dev/fb*. The display initially showed as all white, then went all black, indicating correct initialization. However, when starting the desktop GUI, only the Sharp LCD showed any contents, and only it was listed as a device by xrandr.

The above configuration seems to work well. Both displays showed data. VNC showed a single combined desktop. Moving a window from left to right moved to the appropriate display as expected by the Option "Xinerama" "true" option of the server layout.

Based on claims of the above not being "ideal", I experimented with various settings. If the above file is deleted entirely, xrandr reports the Sharp LCD as the sole display. If you put the above file in place, and remove all references to the Sharp LCD (including the Device, Monitor, Screen, and ServerLayouts), xrandr correctly reports the TFT LCD, but not the Sharp LCD. I left JUST the Device sections in, but xrandr failed to correctly report one of the other.

No matter what combinations I tried, I was unable to get xrandr to list both the HDMI display and the SPI display at the same time. If all parts above ARE explicitly listed in the configuration, running xrandr reports an error that the RandR extension is not loaded. Thus I was unable to use the more advanced built in layout management of X11 using the RandR extension.

Since xrandr was INOP in this configuration, I could not use xinput --map-to-output to limit touchscreen coordinates to the TFT LCD. Instead, I settled on using a combination of touch screen rotation, and input coordinate translation:

You may be tempted to try to hack a dtoverlay that uses the ads7846 driver and specifies the x-min, x-max, etc. parameters. Don"t. I wasted a huge amount of time on this. While you can specify min/max, they apparently do NOT affect the output of that driver. The raw numbers are still reported when watching X11 input events via sudo DISPLAY=:0.0 evtest /dev/input/event0 no matter what the min/max parameters to that driver are.

The reference post noted that you can"t change the background color or image of the small display with this configuration. While that is true using the GUI, those configuration options are stored in the following files:

Xserver wants to talk to either DRM/KMS for all rendering, or goes to /dev/fbX nodes if there is no DRM/KMS available (and then Xinerama is required to support multiple displays).

With DRM/KMS X will render one "super desktop" covering all displays in their correct positions, and then tell each DRM/KMS device to display the correct bit of it. That"s how it works with dual HDMI on Pi4.

Now these SPI displays used to be driven by a driver that only exposed them as /dev/fbX nodes. They now appear to be under the tinydrm driver, so I would have expected them to show up as DRM/KMS devices. The output from modetest would be interesting to see (X can not be running when you run modetest). "xrandr --verbose" may tell you if you have vc4-(f)kms-v3d enabled. (Sorry, I don"t have one of these displays to test with)

That is how I believe things work if you were to drop 2 different graphics cards into an x86 PC - one does all the rendering through OpenGL, and then they each get told which bits of the resultant image to display.

As I mentioned in my initial post, what "works" for me is the "rpi-display" overlay. If I execute fdtdump /boot/overlays/rpi-display.dtbo on my current configuration, I see this fragement:

I"m not real familiar with this stuff (I stumbled across it while I was stuck in the mud), but I assume by these results that there are two different drivers possible: fb_ili9341 which is the framebuffer version, and ili9341 which I assume is the DRM version. If I understand how this all fits together, it appears that when I select the "rpi-display" overlay, its picking the framebuffer version due to the last line in modules.alias?

Adding "tinydrm" to my google searches revealed this Github issue: https://github.com/notro/tinydrm/issues/14, and it mentions in passing "here is an example overlay source file", pointing to the rpi-display overlay. However, when I look at the referenced source, https://github.com/notro/tinydrm/blob/m ... verlay.dts, it contains this:

Switching to the "multi-inno,mi0283qt" compatible and I get nothing. Reading the DT bindings, the backlight has been moved from being a GPIO property of the display to being a link to the backlight device driver, so it"s understandable that the backlight stays off.

On my CM4 xrandr didn"t even list the extra SPI display, whereas on x86 it is listing all the connected and disconnected displays (7 of them total!). On both systems they show up under /sys/class/drm, so it may be the way that X enumerates the displays.

So, I tried the dtoverlay you posted, and sure enough - I was also able to get a test pattern using modetest! So, that explains part 1 - the pinout is different on some of these displays.

Next, I removed my previous 99-multihead-conf file from my "/usr/share/X11/xorg.conf.d/" and restarted the desktop manager. I opened a terminal window, entered "xrandr", and both displays listed! I thought it was solved, but at that point, my poor little Pi completely locked up. I had this same problem in the past when I was trying the various DRM driver overlays. The desktop just became very unstable.

Strange that the SPI display showed up for you but not me, even if it did then crash. I"ve tried an upgrade of my RaspiOS 32bit install (although with latest kernel) and it still doesn"t want to acknowledge the SPI display through xrandr. Could you post the output from xrandr when it sees both displays?

is needed for xrandr to see the display (listed as Unknown19-1 for me, presumably as X hasn"t been built with any knowledge of DRM_MODE_CONNECTOR_SPI being 19. https://elixir.bootlin.com/linux/latest ... ode.h#L390

However it is as I suspected - we have no mouse pointer on the TFT screen, presumably as X can"t cope with one display having a cursor plane and the other not. I don"t know the best way to overcome that.

*edit*: Minor correction there. If the two displays overlap, then the mouse cursor disappears on the SPI screen. If you set them to be independent (eg "xrandr --output Unknown19-1 --right-of HDMI-1"), then X switches mode and renders the mouse cursor.

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update:the github LCD_Show script works well enough to get this LCD working on the Raspberry Pi 4 using the latest (at the time of this writing) release named Buster... what is not configured is the touchscreen coordinates, nor a very important configuration: right-click on a touchscreen...- install the xinput-calibrator package, then run the program from either the desktop menu (Preferences) or from the command line of a terminal window; You"ll be shown a graphical screen, and asked to pen touch four different points on the display. When done you"ll be presented with a line of values representing your LCD"s touch boundaries, such as: "258 3966 3774 226" - Enter these values (as root) into the file 99-calibration.conf under the /etc/X11/xorg.conf.d directory, then reboot your RPi to enjoy more accuracy- to get right-click emulation, edit /usr/share/X11/xorg.conf.d/10-evdev.conf to contain:Section "InputClass" Identifier "evdev touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "evdev" Option "EmulateThirdButton" "1" Option "EmulateThirdButtonTimeout" "500" Option "EmulateThirdButtonMoveThreshold" "30"EndSectionyou"ll then get a right-click action after a half-second of your pen or fingernail is down on a menu item, icon or desktopold review with outdated info follows:FURTHER UPDATE: this LCD display also works with the pi zero with no problem at all! (see pic)UPDATE: this LCD display works just fine with the new Linux 4.4.9-v7+ kernel and May 10, 2016 Raspian release! here are the steps:1. use this /boot/cmdline.txt:dwc_otg.lpm_enable=0 console=tty1 console=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait fbcon=map:10 fbcon=font:ProFont6x11 logo.nologo2. edit the end of /boot/config.txt to contain:dtparam=audio=ondtparam=spi=ondtoverlay=ads7846,penirq=25,penirq_pull=2,xohms=150,swapxy=1,xmin=300,ymin=700,xmax=3800,ymax=3400,pmax=255dtoverlay=waveshare35a3. copy waveshare35a.dtb (found on-line via swkim01"s waveshare git hub [use a web search]) to the /boot/overlays directory as:waveshare35a.dtbo(note that the new kernel requires a ".dtbo" on overlays now!)4. edit /usr/share/X11/xorg.conf.d/99-fbturbo.conf to contain:Section "Device" Identifier "Allwinner A10/A13 FBDEV" Driver "fbturbo" Option "fbdev" "/dev/fb1" Option "SwapbuffersWait" "true"EndSection5. create a file named 99-calibration.conf under /etc/X11/xorg.conf.d to contain:Section "InputClass" Identifier "calibration" MatchProduct "ADS7846 Touchscreen" Option "Calibration" "3932 300 294 3801" Option "SwapAxes" "1"EndSection6. reboot and enjoy!folks, there"s no real magic here and no need to download a special "image" of a Raspbian distro... i don"t know why vendors make customers jump through insane hoops to get a product like this working... the screen is an XPT2046, aka "ADS7846," which is readily supported by the Linux kernel and Raspian releasesthis display is a good deal and will provide a lot of fun - why vendors don"t make things easier for their customers i"ll never know... one of these days, Raspberry Pi users may benefit from vendors providing simple and easy instructions (Adafruit"s waveshare approach is convoluted as well and didn"t work for me)...hope this helps someone

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