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Bar type TFT for electronic shelf labeling

Electronic shelf labeling has been a typical e-paper topic. While it is power saving and simple to equip existing shelfs with it, it is also limited in color and and variety of pictures. Videos are not possible.

A new TFT, made to fit typical shelf fronts, could be the alternative:

Display size









500 cd/m²

Active Area


Viewing Direction


Operating Tepmerature

0 - +50°C

Storage Temperature

-20 - +60°C












Further bar type TFTs are availalbe:

Size (Inch) Width Height
1,8 240 76
2,96 320 124
3,83 480 107
4,58 800 320
6,5 800 320
9,36 1024 400
8,8 480 1920
10,4 1024 100
19 1920 360
23,2 1280 92
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Why MIPI is not suitable for industrial displays

Why MIPI is not suitable for industrial displays

One of the most important requirements for industrial customers is long term availability. This is why it is more than surprising that MIPI displays are offered for industrial purpose. Read here why MIPI is not the preferred solution for industrial TFTs.

What is a MIPI display?

A so called MIPI TFT display is a display with a MIPI-DSI interface which is specified by the MIPI Alliance. The members of this alliance develop interfaces exclusively for the mobile communications industry. The main objectives of the MIPI-DSI interface are: high performance, low power consumption and low electromagnetic interference while reducing pin count and maintaining compatibility across different vendors. Every smartphone display is based on this interface.

A further benefit of these displays is that they are only produced in mass production and therefore the prices are very low. But that also means that all MIPI-Displays which are available on the market are currently produced for smartphone application only. On this fast consumer market every year new smartphones with new displays are developed and because of the high quantities (e.g. Samsung Galaxy S7: >55mil. pcs.) the tooling costs doesn’t matter.

That means that the product lifecycle is very short and the long-term availability doesn’t exist. Nobody will care about an additional customer with an annual demand of 10k pieces. And that is why a product change notification in due time doesn’t exists either.


MIPI-DSI protocol

Another big challenge is the MIPI-DSI protocol. Besides a data protocol for the image data there is a SPI interface for configuration. Every display has a different command set. That’s why it is not possible to switch the display. If the customer wants to use a different display, the programming has to start from zero. As nobody cares about small customers (


What is the Solution?

  • The use of standard technologies (TFT-LCD) with standard sizes and standard resolutions
  • The application of well documented interfaces, standard for 15 years: digital RGB (TTL)
  • Standardized pinout of the FPC connector e.g. the family-TFT interface of LCD-Mikroelektronik

We look forward to providing you with more information on long-term availability. We would be pleased to prepare an individual offer for you.


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Bar type TFTs

We offer a variation of bar type TFTs e.g. for HiFi or rack applications, e.g.

4.6" TFT

5.8" TFT

6.5" TFT

9" TFT


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Sunlight readable displays

Normal displays, especially TFTs, are difficult to read in direct sunlight. If you want to make them sunlight readable, you need to consider some points in the design of your TFT module.

1. The surface brightness must be at least 500 cd/m2, in fact it is better to provide e.g. 800 cd/m2.

You may notice that you will increase the brightness of your smartphone in direct sunlight. If you decrease the brightness, the TFT seems to be black. So an essential point in order to design sunlight readable applications is to increase the surface brightness with a powerful backlight.

2. Use an anti-glare surface or anti-reflection coating. 

With a special anti-glare lens or anti-reflection coating you can reduce reflections on the surface of the module, which make the TFT difficult to read in direct sunlight.

3. Use optical bonding of front-glass and touch to display

Additional boundary layers in the module, between frontglass and touch as well as touch to TFT, cause additional reflections. Eliminating those boundaries by bonding the parts with optical clear adhesive or optical clear resin, will increase sunlight readability. 

Please contact us for further questions on sunlight readable modules, we are happy to help!


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Anti-reflection film

TFT modules with gasket bonding have an air gap between touch sensor and TFT. This gap leads to reflections in the TFT and is also the reason why TFTs look greyish, not black, in power off state.

The traditional solution to this problem is full-lamination, however this option is costly and not suitable for all types of cell and coverlens combinations.

An anti-reflection - moth eye - film can be a cost efficient alternative eliminating interfering reflections.

In off state, the module looks more blackish, which gives the application a fine look.

Most TFT-modules can be equipped with moth eye film, contact us for inquiries!

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LCD Mikroelektronik GmbH
Otto-Lilienthal-Str. 13
76275 Ettlingen


Telefon: +49(0)7243-76888-0
Telefax: +49(0)7243-76888-29

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Embedded Nürnberg 2022