imx6 lcd panel factory

... boardFlashe-NAND 4GBFront Panel ProtectionIP65 compliantPower RequirementDC in 12V (optional: wide range voltage DC in 9~36V)ConstructionAluminum front bezel/ rugged metal housingMountingWall mount (VESA 75 x 75)Operating ...

This application note describes the i.MX6 CPU graphical system and the steps to define a new custom TFT (Thin Film Transistor) display panel in Digi Embedded Yocto and discusses the most standard panels available. Some panels may need special consideration.

An LCD panel is a matrix of pixels that are divided into rows and columns. These pixels are individually painted according to different signals and timing parameters, and you can control each pixel"s color individually. The panel is continuously refreshed, typically at around 60 Hz, from the contents of the frame buffer memory. Each memory location on the frame buffer corresponds to a pixel on the LCD panel.

A 1024 x 600 resolution display requires 614400 memory locations, with each location having a number of possible colors. The number of bits needed to describe the available colors is called bits per pixel (bpp). For example, 16 bpp can describe 65536 colors and 24 bits can describe 16777216 colors (known as true color). A panel with 614400 24-bit locations requires a 1800 KB frame buffer.

Every manufacturer provides display timings in a slightly different way and some provide more detail than others. Most LCD panels work with a range of timing parameters.

LCD displays must be created as nodes in the device tree with a display-timings subnode. Display timings binding documentation at Documentation/devicetree/bindings/video/display-timing.txt explains the required timing properties to describe an LCD.lcdname {

hfront-porch is the horizontal front porch, the number of clock pulses (pixels) between the last valid pixel data in the line and the next HSYNC pulse. According to the LCD data format, this value is zero.

vfront-porch is the vertical front porch, the number of lines (HSYNC pulses) between the last valid line of the frame and the next VSYNC pulse. According to the LCD data format, this value is zero.

NoteThe recommended timings from the LCD datasheet often do not work perfectly, as each platform introduces noise and delays that affect the display"s signals and timings.

This color chart displays a white one-pixel frame at the edges of the LCD (which allows you to verify correct position and width/height), and gradients of red, green, blue, and white (which allow you to verify correct color depth and format).

Die Größe eines LCDs zu verändern bedeutet buchstäblich, Glas, Polarisatoren, Stromkreise und Leiterplatten auf eine neue Größe zuzuschneiden. Noch vor ein paar Jahren galt es als unmöglich, die ursprüngliche Leistung eines zuvor gefertigten LCDs zu erhalten, nachdem das Glas geschnitten worden war. Litemax hat jedoch das Unmögliche immer wieder möglich gemacht, und wurde zum weltweiten Vorreiter und Marktführer bei der Größenveränderung von LCD-Lösungen.

Squarepixel series is designed for high brightness with power efficiency LED backlight. It provides LCD panel with specific aspect ratios and sunlight readable for digital signage, public transportation, exhibition hall, department store, and the vending machines.

Der Geist von Durapixel steckt schon in seinem Namen: Dauerhaftigkeit. Warum Durapixel? Handelsübliche LCD-Anzeigen können aufgrund der günstigen Preisgestaltung meist nicht mehr als 30.000 Stunden MTBF bieten, das ist nicht ausreichend für Anwendungen, die einen Betrieb rund um die Uhr benötigen. Systemdesigner, Integratoren und Anwender, die robuste industrielle Displays für anspruchsvolle Umgebungen benötigen, brauchen nicht weiter zu suchen – das zuverlässige, robuste und hochwertige Durapixel ist der Schlüssel zu Ihrem Erfolg.

UbiPixel, industrial LCDs are used in many professional applications. High bright sunlight readable and low power consumption display technologies offer the highest quality LCDs for specific industrial applications. Our embedded LCD can be manufactured in an open frame, VESA mount, or fully enclosed housing for HMI display, KIOSK, Vending machine, home automation, point-of-sale terminals, digital signage and more. UbiPixel, industrial LCDs are used in many professional applications. High bright sunlight readable and low power consumption display technologies offer the highest quality LCD screen for specific industrial applications. Our embedded LCD can be manufactured in an open frame, VESA mount or fully enclosed housing for HMI display, KIOSK, Vending machine, home automation, point-of-sale terminals, digital signage and more.

Featuring a modular designed, this series can be fitted with a number of modules to expand its base capabilities. On-site maintenance and future upgradability are easier than ever by deploying our panel PCs and monitors.

Litemax rugged panel PCs go beyond that of the standard industrial panel computes with elegant, full IP68/65-rated construction, powerful performance and flexible mounting options making it ideal for harsh environments and demanding applications, such as machine controller, command centers, and fast, efficient computing.

The Litemax ITRP series is fanless Passenger Information System, It features stretched LCD display, with high brightness to ensure easy readability even in light-insufficient environments. It serves as a reliable platform to provide passenger information on wide versatility of vehicles, such as bus and trams.

The Toradex ARM Computer Modules supports almost every active and passive LCD without any glue logic. You can attach TFT (active) and STN (passive) displays glueless (without any CPLD) to the Colibri display interface.

You can find more information about the available displays and its characteristics in Mitsubishi"s catalog (Under Color TFT-LCD Modules catalog): http://www.mitsubishielectric.com/semiconductors/catalog/index.html

NOTE1: LED driver side, disconnect Pin 1, 2 of LCD from led driver circuit and give 5V input as led driver is integrated with the LCD and connect PWM signal for backlight dimming control to Pin 35 of LCD.

The fanless low power Freescale i.MX6 processor-based front IP65 aluminum front bezel HMIs use 5 wires resistive single touch solution from 10.4" to 21.5" and adopts ARM architecture dual lite/quad Core Cortex-A9 processor 1.0GHz. also made with robust rear steel chassis with aluminum front bezel and can operate under harsh operating environment from ingress of dust and water, The users can benefit from the mounting: wall mount (VESA 100 x 100 & 75 x 75), panel mount and clips for specific sizes

while the IMX6 itself has 2 LVDS ports each supporting up to 4D+C (4 data pairs plus 1 clock pair) which can be used as separate displays or combined (see ​IMX6DQRM section 39.4.2), the Ventana designs only bring out 3D+C (3 data pairs plus 1 clock pair) of the first lvds port

Note that the Ventana bootloader always configures BACK_EN# (gpio10) as output-low but leaves BACK_ADJ as a high-impediance input with a 100k pull-up unless the panel env is set to one of the supported LVDS configurations (see below) in which case the bootloader enable_lvds function drives BACK_EN# low making it appropriate if connected to an active low enable or active high reset and BACK_ADJ high making it 100% brightness.

The panels that we offer "out-of-the-box" support for all have an integrated backlight controller on-board that is controlled via a PWM signal from the processor.

the display env variable will select the "native-mode" device-tree node for the LCD display to timings for the kernel (supported in the 3.10.53 vendor kernel used on the Android Kitkat BSP, Yocto v1.8 BSP, and the latest OpenWrt (see: ​https://github.com/Gateworks/openwrt))

the video kernel parameter can specify display details for mxcfb0, mxcfb1, mxcfb2, mxcfb3 devices (IMX6Q can support 4 simultaneous display out, while IMX6DL can support 2).

Bonding - Touchscreens are bonded to LCD displays. Some combinations are pre-bonded but otherwise bonding is a very complex process and requires very expensive machinery. It is highly recommended that the LCD and touchscreen be bought pre-bonded.

We would add an additional device-tree node to display-timings in arch/arm/boot/dts/imx6qdl-gw53xx.dtsi (to add it to the GW53xx - add it to the other board dtsi files as needed)

The Ventana U-Boot Bootloader specifies an array of displays via the displays variable ​here. The struct display_info_t structure (defined ​here) defines a bus/addr, pixel format, detect function, enable function, and video mode which includes a unique name, resolution and timings details. The panel env variable is used by U-Boot to determine which panel to configure and the value must match one of the video mode names in the array. Note that the display env variable can also be used for configuring the display for the Linux kernel (see below).

Established in 1998, Winstar Display Co., Ltd. is a reliable LCD Display Module Manufacturer and LCD Panel Supplier. Winstar has development of high-quality display module products. We operate worldwide, configure, service products, and also provide logistics support to deliver products and services competitively. We provide LCM Modules including monochrome TN/STN/FSTN LCM, COG LCD, TFT LCM / TFT panels, FSC-LCD, graphic LCM, character LCD displays, OLED display modules (PMOLED), custom LCD displays, OLED and LCD panel.

Winmate open-frame panel computer incorporates a touchscreen display into the same enclosure as its internal components such as the processor, hard drive or solid-state drive, motherboard, I/O ports, and power supply. The Winmate open-frame panel computer design delivers high-end performance coupled with a compact footprint, built to withstand temperature fluctuations, extreme heat, or cold, frequent in industrial environments. It is optimized for rugged environments and possesses such qualities as resistance against water and humidity, dust, grease, shock, and vibration. Winmate Open frame panel PCs feature a wide variety of mounting options, including panel and VESA mount types. They can be mounted into an enclosure, onto a machine, or inside a control cabinet. The panel mount is the most frequent mounting style in factory automation applications.

Winmate understands the demands of these fast-paced, rugged environments and has designed a series of industrial-grade HMI that deliver on performance, functionality, and design to enable increased productivity and efficiency on the factory floor. Winmate"s multi-touch series goes beyond the standard industrial panel computers with elegant, edge-to-edge design, rugged construction, powerful performance, a full line-up of I/O options, and flexible mounting options. Our advanced multi-touch panel PCs maximize performance, whether used for a control room, machine automation, assembly line monitoring, user terminals, or inside heavy machinery.

I have a custom hardware device that uses a Variscite i.MX6Q (quad-core) to drive a 320x240 display. Once the linux kernel starts booting, the LCD display works great - no issues at all. However, prior to that the boot loader (u-boot) shows a white screen (sometimes with faint vertical lines) for about 0.25s, then goes black for about 8s until the kernel takes over (reinitializing the display and correctly showing the kernel"s own splash screen).

[Warning - PDF!] - Instructions on how to add support for new displays to iMX boards; section 6.1.4 talks about iMX6Q. However, I"ve added the proper display timings to the displays[] var (see code below) and I"m still having problems.

In terms of hardware, the LVDS signal from the iMX6 is converted to parallel RGB by a TI SN65LVDS822 FlatlinkTM LVDS receiver, which drives a 320x240 QVGA Okaya RH320240T-3x5AP-A display.