lcd screen dim quotation

There are two points we have to emphasize:Outer Dimension and Main Application. There are the most important factors and it is necessary for us to know them. If we don’t even know the outer dimension and the main application, we don’t know where to start.

7. We are looking for a bright screen that will be able to drive 1000+ nits and have the DSI MIPI interface. Our current target is 500 unitsand we require demo units as soon as we can get them.

10. Hi, We have recently started a new project and we will be using your screen LTK0695I4006W for design. Can I please enquire how we can procure some samples of the screen? Is there also a development kit or reference design that comes with the screen?Thank you and Regards

Leadtek has paid great efforts on research and development of TFT-LCM, especially on its application of consumable and industrial products. The sizes of LCM includes 1.4”, 2.4”, 3.5", 3.51", 4.3", 4", 5", 7", 8", 10.1” and 11.6". And among them the 3.5”, 4.3", 5", 7” and 10.1" LCM has achieved the leading level of the industry, and mainly applied to vehicle-applications, tablet PCs, smartphones, medical equipment, measurement equipment, E-books, EPC and industrial products, and provides powerful and reliable supports on supplies and qualities. We are cooperating with famous foreign companies on research and developments, and will bring out the series products of industrial control LCD display. Also, we explore the overseas market, and build up a long-term relationship with our overseas partners and agents, Leadtek products will be worldwide in the near future.

The fall may have loosened the cable connection from the display assembly on the systemboard. Worst case is that it internally damaged the display assembly or something in the screen’s backlight power circuit on the systemboard. The display assembly cannot be repaired. It has to be replaced

That is why it has the auto sensor - because there is no such thing as a fixed "true brightness level" for this or any LCD. You are asking for something that is physically impossible to achieve.

Most LCDs are a transmissive display technology and their apparent brightness depends on the relative brightness of the backlight transmitted through the LCD to the ambient light level. A low level backlight/tranmission may give a realistic image under dark conditions that allow you to assess exposure, but would be completely dark under bright sunlit conditions, causing you to assess correct images as under-exposed. Similarly a high backlight/transmission will give reasonable looking exposure assessment in moderate light levels, that will appear over-exposed in dark conditions.

With prints, which are a reflective technology, the ambient light level is part of the viewing conditions, so the image automatically adjusts its brightness depending on the ambient light level. The auto sensor on the LCD is just an attempt to simulate this effect as well as is technically feasible with a transmissive display technology. Obviously, if the sensor is poorly adjusted then it will result in images on the display appearing under/over exposed for the range of light levels it is capable of coping with.

Some LCDs are reflective technology, such as the one on the top panel, but that isn"t the case with the back display. Until reflective image displays become available, an auto sensor is the best you are likely to get.

Luminit’s Display Brightness Film is a light-management film that increases the brightness of LCD displays used in automotive, avionics and consumer electronics applications. This highly specialized display enhancement film utilizes the principles of refraction and total internal reflection to recycle and redirect light to manage the angular output from a back-light unit (BLU) and increase the brightness of a display. The standard version has a gloss finish on one side, and an optional diffuser is available to reduce common unwanted optical artifacts such as mura, sparkle and moiré. The result is display performance that is brighter and more efficient. Tests show Luminit LCD Display Brightness Film within 4% of the performance characteristics of similar film solutions (BEF-2).

• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).

Before answering the questions below, it would be helpful to provide a simple overview of how a TFT LCD works. Every monitor or touchscreen computer includes an LCD panel. The LCD panel is the component that you are viewing at this very moment. This panel includes a thin layer of TFT LCD pixels, where each pixel includes a red, blue, and green rectangle. You can actually see the individual pixels on a display if you place a drop of water on it. The drop will magnify the pixel area and reveal a pixel with a red, blue, and green rectangle. Each red, blue, and green rectangle is a small lens that can be adjusted to allow varying amounts of light to pass through. The colors you see on your screen are determined by how much light is passing through each adjustable red, green, and blue element of each pixel.

The light that you see does not come from the pixels themselves, but from the backlight behind the pixels, which is a series of carefully placed LEDs that emit white light that projects through the LCD pixels. You cannot see the individual backlight LEDs when you look at your monitor, because there is layer of light diffusing material between the LED backlight and the LCD pixel layer. The light diffusing material scatters the light from each individual backlight LED, so they do not show up as bright spots on your monitor.

To summarize, the three layers of an LCD panel are the TFT LCD pixel layer, the diffuser layer, and the LED backlight layer. Note that some LCDs have edge-lit backlighting, but there is no need to go into detail about this, as the same principles apply. That completes LCD panel course 101. Now, what makes a display sunlight readable?

There are two general ways to make an LCD brighter and therefore readable in sunlight. The first and simplest way is to increase the brightness of the backlight. LCD brightness is measured in Nits. Typical LCD panels have a screen brightness between 250 Nits to 450 Nits. LCD brightness of 800 Nits or higher is generally considered sunlight readable, but most sunlight readable displays are 1000 nits. Increasing the brightness of the LCD panel backlight is the most common method of making an LCD panel sunlight readable. Most of Teguar’s industrial panel PCs and touchscreen monitors are available with this type of high brightness LCD.

Another way to make an LCD sunlight readable is to change the diffuser material between the LED backlight and the LCD pixels to a “transflective” material. The transflective material is similar to reflective sunglasses or a one way window, where the shiny side is facing the LCD surface. When transflective material is used, the sunlight entering the LCD panel travels through the pixels, bounces off the transflective material, and is reflected back through the pixels to your eyes. In this case, the sunlight has much less of an impact on viewability than a traditional LCD panel, as the sunlight is reflecting back through the LCD pixels and contributing to the LCD brightness. One drawback of transflective diffuser LCDs is that they don’t allow for as much of the backlight to pass through the diffuser material, so in low light conditions the LCD does not appear as bright. Transflective diffuser LCDs are not as common as high brightness backlight LCDs.

Optical bonding improves viewability of touchscreen PCs in sunlight or other high-bright environments. In a touchscreen computer, the touchscreen sensor and the LCD panel are separate components. The touchscreen is mounted in front of the LCD surface and there is a small air gap between these two components. When sunlight passes through the touchscreen layer, some amount of the light is reflected between the LCD surface and the touchscreen; this reflection reduces LCD viewability.

Optical bonding is a process where a clear adhesive gel is placed between the LCD to the touchscreen. The gel hardens and bonds the touchscreen to the LCD to eliminate the air gap, improving contrast and clarity. Optical bonding is available on many of Teguar’s touchscreen computers and industrial monitors.

The brightness of a sunlight readable display may be overwhelming at night, when there is little or no ambient light. Most industrial computers with sunlight readable LCDs are available with an optional auto-dimming feature. With this feature, an ambient light sensor on the front bezel measures incoming light and adjusts the backlight brightness to match the current light conditions. This is typically a requirement for industrial touchscreen computers that are used in both sunlight and moonlight.

Sunlight also comes with a high amount of UV radiation that can damage the components used in touch screens. PCAP touch screens resist UV damage better than Resistive, but even a PCAP screen must be protected from too much UV exposure. Teguar computers are best suited for environments that provide some level of shade, such as a roof or overhang above the computer, or a structure that blocks the screen from direct exposure to the sun. Most outdoor computer manufactures, Teguar included, will offer a specialized shroud/hood that mounts directly to the unit to provide some level of shade.

Most of our products can handle a few hours of direct sun exposure per day, but full exposure to direct sunlight will cause damage to most touch screens in around 1 year. Contact a knowledgeable Teguar sales rep to discuss the details of your own environment and we can help determine the best solution.

Touchscreen computers in vehicles commonly require high brightness LCDs, because of the ambient sunlight coming through the windows. Sunlight readable LCDs are also used in many indoor applications surrounded by windows, such as air traffic control centers, railroad cars, marine vessels, agriculture machinery, and public kiosks.

TRU-Vu offers a tremendous selection of industrial LCD monitors and touch screens with standard brightness. This generally includes monitors with 250-350 nits brightness. These are ideal for use indoors or in standard light conditions. In comparison, our outdoor Sunlight Readable monitors feature 1,000+ nits brightness. Standard brightness screen sizes range from 7” to 55”. Models include standard or Medical Grade displays, which are certified to the latest UL 60601 regulations.  Waterproof, panel-mount, open frame and Zero-Bezel monitors are used in a variety of applications. Monitors are available with 4:3 aspect ratio or 16:9 aspect ratio.

Our industrial LCD monitors can be modified to meet your specific needs. You can customize your monitors from a long list of available options. Additionally, TRU-Vu monitors can be custom-built to your exact specifications. We will ensure your display will provide all the features and functionality you need. Certainly, If you would like to discuss your particular modifications, we are always available to help with a solution.  Let TRU-Vu provide a modified LCD display, or design a custom monitor to meet your needs. We can customize nearly aspect of your display. Specifically, video inputs, electronics, screen treatments and enclosures. Another popular option is embedding your own devices inside our enclosures.

We understand the importance of creating branding for your company. For instance, OEM’s and systems integrators love our ability toprivate-label monitorsand touch screens. We will silk-screen your company logo or model number onto the front.  Additionally, we can put your own exclusive model number on the rear label of each industrial lcd monitor. Contact us to discuss your private label options.

Standard brightness lcd displays and industrial touch screens are for use in a wide range of indoor industries and applications. For example, in industrial manufacturing plants, arenas and stadiums, inside vehicles, food and beverage processing and filling.  Additionally, they are used in kiosks and ticketing counters, in museums and galleries. In surgical OR, and medical carts, the healthcare industry needs precision. Moreover, pipeline inspection trucks, telehealth and telemedicine systems, automated visual inspection systems utilize our rugged lcds. Open frame monitors are often used inside a wide range of medical equipment and industrial machinery. Our monitors are compatible with nearly any HD camera modules.

Liquid Crystal Display (LCD) screens are a staple in the digital display marketplace and are used in display applications across every industry. With every display application presenting a unique set of requirements, the selection of specialized LCDs has grown to meet these demands.

LCD screens can be grouped into three categories: TN (twisted nematic), IPS (in-plane switching), and VA (Vertical Alignment). Each of these screen types has its own unique qualities, almost all of them having to do with how images appear across the various screen types.

This technology consists of nematic liquid crystal sandwiched between two plates of glass. When power is applied to the electrodes, the liquid crystals twist 90°. TN (Twisted Nematic) LCDs are the most common LCD screen type. They offer full-color images, and moderate viewing angles.

TN LCDs maintain a dedicated user base despite other screen types growing in popularity due to some unique key features that TN display offer. For one,

VA, also known as Multi-Domain Vertical Alignment (MVA) dislays offer features found in both TN and IPS screens. The Pixels in VA displays align vertically to the glass substrate when voltage is applied, allowing light to pass through.

Displays with VA screens deliver wide viewing angles, high contrast, and good color reproduction. They maintain high response rates similar to TN TFTs but may not reach the same sunlight readable brightness levels as comparable TN or IPS LCDs. VA displays are generally best for applications that need to be viewed from multiple angles, like digital signage in a commercial setting.

IPS (In-Plane Switching) technology improves image quality by acting on the liquid crystal inside the display screen. When voltage is applied, the crystals rotate parallel (or “in-plane”) rather than upright to allow light to pass through. This behavior results in several significant improvements to the image quality of these screens.

IPS is superior in contrast, brightness, viewing angles, and color representation compared to TN screens. Images on screen retain their quality without becoming washed out or distorted, no matter what angle they’re viewed from. Because of this, viewers have the flexibility to view content on the screen from almost anywhere rather than having to look at the display from a front-center position.

Based on current trends, IPS and TN screen types will be expected to remain the dominant formats for some time. As human interface display technology advances and new product designs are developed, customers will likely choose IPS LCDs to replace the similarly priced TN LCDs for their new projects.