English
Polski
Česky
Deutsch
Irish
Magyar
Português
Română
Slovenský
No. 38/2024 (November 18, 2024)
Stretchable display from LG.
The LG Display company has achieved a breakthrough, creating the world's first stretchable display that can enlarge by as much as 50%, which is the highest elongation rate in the industry to date. The prototype was showcased on November 8 at LG Science Park in Seoul, where more than 100 professionals from Korea's industry, academic and research sectors were able to see its capabilities as part of a national stretchable display project. Stretchable display technology represents the latest stage in the development of free-form displays that can be transformed by stretching, folding and twisting. The current prototype offers a 12-inch screen capable of stretching to 18 inches while maintaining a high resolution of 100 pixels per inch and full RGB color reproduction. The new panel more than doubles the stretch rate of the first prototype introduced in 2022, which was 20%. This increased extensibility provides greater flexibility in screen design, significantly increases commercialization potential and expands the applicability of the technology.LG Display achieved this advance by integrating innovative technologies such as an improved silicon substrate, originally used in contact lenses, and a new wiring structure. These innovations have increased the panel's extensibility and flexibility and far exceeded the original design target of 20% elongation. In addition, the use of micro-LEDs up to 40 micrometers in the light source has improved the prototype's durability and enabled it to stretch more than 10,000 times while maintaining crisp image quality, even under harsh conditions such as temperature fluctuations and external impacts.
Thanks to their thin and lightweight design, the stretchable displays can adhere to irregularly shaped surfaces such as clothing and skin. They are expected to find applications in the fashion and automotive sectors. LG Display has unveiled several ideas for using stretchable displays, such as an automotive panel that can stretch to a convex shape and be operated by touch, and a portable display integrated into firefighters' uniforms to access real-time information.
Static color palette for thermal imaging cameras.
Thermal imaging cameras capture infrared radiation emitted by objects and convert it into an image in which the intensity of the radiation corresponds to specific temperature levels. The use of image coloring improves image clarity and makes it easier to analyze, as different temperatures are easier to identify with assigned colors.
Image using the Ironbow palette
Thermal imaging cameras support various color palettes, of which “Ironbow” (rainbow) is one of the most commonly used in building analysis and other general applications. The color scheme of this palette is based on a gradient from purple and blue for cool areas, to red and white for the warmest areas. Thanks to this intuitive color scheme, temperature differences are clearly visible – the coolest objects are dark blue, while the warmest go through shades of red all the way to white. Such colors help quickly identify areas with different temperatures.
An example of an image after using a static color palette
The “White Hot” (white and black) palette is often used in technical monitoring and analysis. In this palette, the hottest areas are displayed as white and the coolest areas as black. It is a good choice for applications where contrast is crucial, such as detecting moving objects. In this mode, a static color palette can be added, where, in addition, colors are assigned to specific temperature values and remain constant no matter what the camera is currently recording. Such a static palette works best when you need to quickly detect any deviations from normal.
Modular headend as a signal source in a coaxial system.
Headends distributing satellite programs after conversion to DVB-T COFDM digital form are a popular solution used in many hotels. Satellite channels can be an addition to the terrestrial television programs or be the only part of the package offered.Digital TERRA headend has been designed for reception and distribution of terrestrial DVB-T and satellite DVB-S/S2 TV channels in hotels, motels, boardinghouses or other facilities. Thanks to the distribution of all the channels in the form of DVB-T COFDM multiplexes via coaxial cables, they can be received by any modern television (with an integrated DVB-T tuner) connected to an antenna outlet in the facility.
 |  |  |  | | |
| Model | TTX-420 FTA | TDX-420 FTA | TDX-420c | TDX-441 FTA | TDX-481 FTA |
| Code | R81616 | R81618 | R81619 | R81614 | R81621 |
| RF input | DVB-T/T2/C | DVB-S/S2 (8PSK, QPSK) | DVB-S/S2 (8PSK, QPSK) | DVB-S/S2 (8PSK, QPSK) | DVB-S/S2 (8PSK, QPSK) |
| Number of carriers at the input | 2 | 2 | 2 | 8 | 8 |
| RF output | DVB-T | DVB-T | DVB-T | DVB-T | DVB-T |
| Number of carriers at the output | 2 | 2 | 2 | 4 | 8 |
| Max. bitrate [Mbps] | 2 × 31.66 | 2 × 31.66 | 2 × 31.66 | 4x31.66 | 8x31.66 |
| CI interface | FTA | FTA | 2 × CI | FTA | FTA |
2xDVB-T/T2/C - 2xCOFDM TTX-420 R81616 transmodulator is used for reception of DVB-T/T2/C signals, some corrections of TS parameters (regeneration, filtering etc.) and retransmission of them in COFDM format in selected channel in VHF/UHF frequency range. It allows for distribution of digital TV channels in situations when the signal received by the antenna cannot be directly amplified or converted to a different frequency due to high BER and low MER levels. The output DVB-T COFDM multiplex with MER above 35 dB can be distributed to multiple users even within very large networks.
TDX-441 R81614, TDX-420 R81618, TDX-420C R81619 and TDX-481 R81621 modules are used to convert DVB-S/S2 (8PSK/QPSK) signal into DVB-T (COFDM) signal. TDX-420C R81619 allows reception of free-to-air and scrambled channels after placing decoding cards together with CAM CI modules. One panel receives the signal from two transponders (a dozen programs) and then creates two adjacent DVB-T multiplexes allowing distribution of up to 2-3 HD services with a maximum throughput of 31.66 Mbps for each of the 2 multiplexes. If the limit is exceeded, it is possible to feed the signal to further TDX-420C R81619 modules. TDX-441 R81614, TDX-420 R81618 and TDX-481 R81621 transmodulators allow conversion of satellite signals to DVB-T COFDM standard for FTA channels (no slots for CAM CI modules). The above table shows the number of input and output signals for each panel.
Device groups in the iVMS-4200 application.
After adding the DVR to the iVMS-4200 application, it may happen that the cameras supported by the DVR are not visible in the main view window. This may occur if, when adding the DVR, the Import to group option is not checked. The solution is to add the device again with this option checked or to create a group in the Device management -> Group tab. In this tab you can either manually create a group and import the permissions selected by the user, or create a group by device name with automatic import of available functions. The created group can also be edited, i.e. in the case of a monitoring system the user can add or remove encoding channels (cameras).
View of the window for editing, importing and creating groups
What tools for fiber optic splicing?
Installers often ask what tools to purchase when buying a fiber optic splicer. Several tools are offered with the splicer, including: a fiber stripper and a fiber break guillotine. However, this is not all. Buying several additional accessories is necessary, which can be divided into two groups: absolutely essential accessories and optional tools (the purchase of these is conditioned, among other things, by what kind of cables the installer will have to deal with).Essential tools/accessories:
- dustless wipes L5913 – necessary for cleaning fibers after peeling them off the acrylic layer, for cleaning fibers from the gel, etc.
- IPA alcohol L5915 – also essential for cleaning fibers
- splice shrouds 40 mm L5554_100, 60 mm L5555_100 – although they are usually included as an accessory with coupler switches, it is worth having some spare ones
- longitudinal cutter for 4.5 – 11 mm cables L5928 – basic tool for “opening” all cables from Dipol's offer, whose diameter exceeds 5 mm
- longitudinal cutter for tubes and cables 1.5 – 3.3 mm L5926 – a tool for cutting sheaths of cables with a diameter of 3 mm and tubes with fibers
- ideal rotary stripper L5922 – a tool with several applications, in the context of Dipol's offer is the best tool for drawing and breaking tubes with fibers for universal cables and more
Longitudinal splitter for 4.5 – 11 mm cables L5928 will be useful for processing most
cables from Dipol's range – including universal, outdoor and underground cables.
cables from Dipol's range – including universal, outdoor and underground cables.
Optional tools/accessories (may also be necessary in certain situations):
- Kevlar scissors L5904 – in most cases, when working (peeling) cables, standard pliers or cutters will suffice, but scissors of this type work great, for example, when cutting aramid fibers that are a structural reinforcement elements of many cables. These fibers are cut relatively hard with standard pliers, especially if they are not freshly sharpened.
- Tube indentation tool L5925 – useful when, at a certain point in the system, it is necessary to remove the fibers from the cable (it must have a suitable structure) without cutting the remaining fibers.
- Automatic connector cleaners L59161 and L59162 – useful wherever OTDR measurements are performed.
- Fiber waste bin L5918 – for those who care about cleanliness and workplace safety.
Use of one twisted pair cable to connect two devices.
Note! The following is a last resort solution during installation and should not be considered a standard. In system s with only one twisted pair cable between two points and requiring to connect two devices, e.g. IP cameras, there is the need for appropriate extension of the cable.Below, there is an example how to do such an installation. Data transmission in FastEthernet network (100 Mbps) uses the 1, 2, 3, 6 cores. Therefore, proper connection of conductors to RJ-45 connectors will allow to connect two devices. It is worth mentioning the PoE power supply which can also be provided on the same pins as the data (the camera has to support 802.3af option A).
Unfortunately, such a solution does not always work due to the length of the twisted pair cable, as well as the need for considerable extension of conductors at the end of the cable. It is an emergency solution when there is only one twisted pair cable available and it is impossible to use a switch.
Connecting two devices to one UTP cable
 | Buffer power supply for PoE switches and DVR Pulsar SWR-120 (54 V, 12 V, 120 W, 2x 17 Ah / 12 V) The M18943 is designed for uninterruptible power supply for PoE switches with 52 VDC and DVR with 12 VDC. The device is based on a switch mode power supply with a DC/DC converter with high energy efficiency, housed in a metal enclosure in RAL 9003 color. The use of the PWB series power supply reduces operating costs by limiting the number of batteries to two. | |
 | Buffer power supply for PoE switches Pulsar SWBH-60 (52 V, 60 W, 1x 7 Ah / 12 V, IP44) The M18937 is designed for uninterruptible power supply for PoE switches with 52 VDC. The design is based on a switching power supply module with a built-in DC/DC converter with high energy efficiency, housed in an IP44-rated ABS enclosure. The use of a DC/DC converter that raises the voltage allows to reduce the cost of operating the system by reducing the number of batteries to one unit. | |
 | Pulsar P-POE2 splitter (2xRJ45 plug – 1xRJ45 socket) M18954 allows you to transfer power and data to two PoE IP cameras or other standard-compliant devices, using UTP cat. 5e twisted pair cable. It uses 4 pairs of wires – two pairs support one device and the other two pairs support the other device. Requires only 802.3af/at mode A (endspan) compliant accessories that transmit data and power over pairs 1/2 and 3/6. The device is designed for 10/100 Mbps networks. | |
Worth reading
High quality ULTIMODE pigtails. Massive development of the FTTH (fiber to home) market is causing a significant increase in price competitiveness in the segment of passive components, such as adapters, pigtails and patchcords. Unfortunately, lowering prices often involves a reduction in product quality.
For pigtails, we can divide quality parameters into those related to appearance and ease of processing and those related to transmission parameters. Dipol makes every effort to ensure that the ULTIMODE pigtails it offers are of high quality in each of these aspects…>>>more
For pigtails, we can divide quality parameters into those related to appearance and ease of processing and those related to transmission parameters. Dipol makes every effort to ensure that the ULTIMODE pigtails it offers are of high quality in each of these aspects…>>>more
 |  |
Sunell cameras – advanced features at an affordable price
