lcd display brightness control pricelist

Engineers are always looking for lower cost, faster, more convenient interfaces to transmit signals and to accept data and commands. The numbers of available interfaces available in the market can be dazzling. Orient Display can also convert any interfaces to the customer’s requirements among the above interfaces or to higher level interfaces.

Genetic (Raw) Interfaces: Those are the interfaces which display or touch controller manufacturers provide, including 6800,8080, SPI(,Serial Peripheral Interface), I2C, RGB (Red Green Blue), MIPI (Mobile Industry Processor Interface), LVDS (Low-Voltage Differential Signaling), eDP ( Embedded DisplayPort) etc. Orient Display has technologies to make the above interface exchangeable.

High Level Interfaces: Orient Display has technologies to make more advanced interfaces which are more convenient to non-display engineers, such as RS232, RS485, USB, VGA, HDMI etc. They are widely accepted in the market. More information can be found on our other product pages. TFT modules, Arduino TFT display, Raspberry Pi TFT display, Control Board.

Orient Display sunlight readable TFT displays can be categorized into high brightness TFT displays,high contrast IPS displays, transflective TFT displays, Blanview TFT displays etc.

The brightness of our standard high brightness TFT displays can be from 700 to 1000 nits which make them be visible under all environments including direct sunlight. With proper adding 3M brightness enhancement film (BEF) and double brightness enhancement film (DBEF) and adjustment of the LED chips, Orient Display high brightness TFT products can achieve 1,500 to 2,000 nits or even higher luminance which makes great contrast under direct sunlight. Orient Display has a special thermal management design to reduce the heat release and largely extend LED lifetime and reduce energy consumption.

Our high contrast and wide viewing angle IPS displays can achieve contrast ratio higher than 1000:1 which can make readability under strong sunlight with lower backlight luminance. High brightness IPS displays have been widely accepted by our customers with its superb display quality and it has become one of the best sellers in all our display category.

Transflective display is an old monochrome display technology but it has been utilized in our color TFT line for sunlight readable application. Orient Display has 2.4” and 3.5” to choose from.

Blanview TFT displays are the new technology developed by Ortustech in Japan. It can provide around 40% of energy consumption for TFT panels which can use smaller rechargeable or disposable batteries and generate less heat. The price is also lower than traditional transflective TFT displays. Orient Display is partnering with the technology inventor to provide 4.3” and 5.0” .

Orient Display can also provide fullcustomized or part customized solutions for our customers to enhance the viewing experience. Orient Display can provide all the different kinds of surface treatments, such as AR (Anti-reflection); AG (Anti-glare), AF (Anti-finger print or Anti-smudge); AS (Anti-smashing); AM (Anti-microbial) etc. Orient Display can also provide both dry bonding (OCA, Optical Clear Adhesive), or wet bonding (OCR, Optical Clear Resin and OCG, Optical Clear Glue) to get rid of light reflective in air bonding products to make the products much more readable under sunlight and be more robust.

Touch panels have been a much better human machine interface which become widely popular. Orient Display has been investing heavy for capacitive touch screen sensor manufacturing capacity. Now, Orient Display factory is No.1 in the world for automotive capacitive touch screen which took around 18% market share in the world automotive market.

Based on the above three types of touch panel technology, Orient Display can also add different kinds of features like different material glove touch, water environment touch, salt water environment touch, hover touch, 3D (force) touch, haptic touch etc. Orient Display can also provide from very low cost fixed area button touch, single (one) finger touch, double finger (one finger+ one gesture) touch, 5 finger touch, 10 points touch or even 16 points touch

Considering the different shapes of the touch surface requirements, Orient Display can produce different shapes of 2D touch panel (rectangle, round, octagon etc.), or 2.5D touch screen (round edge and flat surface) or 3D (totally curved surface) touch panel.

Considering different strength requirements, Orient Display can provide low cost chemical tampered soda-lime glass, Asahi (AGC) Dragontrail glass and Corning high end Gorilla glass. With different thickness requirement, Orient Display can provide the thinnest 0.5mm OGS touch panel, to thickness more than 10mm tempered glass to prevent vandalizing, or different kinds of plastic touch panel to provide glass piece free (fear) or flexible substrates need.

Of course, Orient Display can also offer traditional RTP (Resistive Touch Panel) of 4-wire, 5-wire, 8-wire through our partners, which Orient Display can do integration to resistive touch screen displays.

43in 4K UHD LED Commercial Display, 3840x2160, 350 Nits, 1200:1, HDMI x 2, DVI x 1, IR in/out x 1, w/ RS232 in x 1, USB x 2, Audio out x 1, SPDIF, Speaker 10W x 2, RJ45 x 1, Black

65 (64.5 viewable) Full HD Interactive Flat Panel Display, 10-point multi-touch and 7H hardness glass, 350 nits, 1400:1 contrast ratio and 178 o /178 o wide viewing angle, Dual core processor and 8GB internal storage, Versatile input includes HDMI x 2, VG

3x3 Professional Video Wall Bundle includes CDX5552 x 9 (UPC 766907807417 / Serial UDCYYWWnnnnn), WMK-067 x 9 (UPC 766907003383 / Serial VU2YYWWnnnnn) Professiol Video Wall Mount and CB-00010555 x 9 (UPC 766907726114 / Serial TTPYYWWnnnnn) DisplayPort cables.

2x2 Professional Video Wall Bundle includes CDX5562 x 4 (UPC 766907961614 / Serial VC1YYWWnnnnn), WMK-067 x 4 (UPC 766907003383 / Serial VU2YYWWnnnnn) Professiol Video Wall Mount and CB-00010555 x 4 (UPC 766907726114 / Serial TTPYYWWnnnnn) DisplayPort Cables

3x3 Professional Video Wall Bundle includes CDX5562 x 9 (UPC 766907961614 / Serial VC1YYWWnnnnn), WMK-067 x 9 (UPC 766907003383 / Serial VU2YYWWnnnnn) Professiol Video Wall Mount and CB-00010555 x 9 (UPC 766907726114 / Serial TTPYYWWnnnnn) DisplayPort cables.

10.1IN multi-touch all-in-one display, 350-nit, 1280x800 resolution, LED light bar, USB 2.0, MicroSD slot, PoE, NFC, door access, GPIO control, auto-focus camera, echo cancellation mic and 802.11ac Wi-Fi, White

10.1IN multi-touch all-in-one display, 350-nit, 1280x800 resolution, LED light bar, USB 2.0, MicroSD slot, PoE, HID, door access, GPIO control, auto-focus camera, echo cancellation mic and 802.11ac Wi-Fi, White

10.1IN multi-touch all-in-one display with Android 9.0, 350-nit high brightness, 1280x800 resolution, MicroSD slot, 2GB RAM, 16GB Storage, PoE, NFC card reader and 802.11ac Dual Band Wi-Fi, Black

Health Flex Kiosk Bundle with 24 inch Display -VP2468 (UPC 766907844818 / Serial UN8YYWWnnnnn) -STND-059 (UPC 766907010220 / Serial WC5YYWWnnnnn ) -NMP520-W (UPC 766907000993 / Serial VMRYYWWnnnnn)

Health Flex Kiosk Bundle with 24 inch Touch Display -VSD243-BKA-US0 (UPC 766907001297 / Serial VNJYYWWnnnnn ) -STND-059 (UPC 766907010220 / Serial WC5YYWWnnnnn)

Health Flex Kiosk Bundle with 27 inch Display -VP2768 (UPC 766907893618 / Serial UY5YYWWnnnnn) -STND-059 (UPC 766907010220 / Serial WC5YYWWnnnnn ) -NMP520-W (UPC 766907000993 / Serial VMRYYWWnnnnn)

IFP Bundle includes IFP5550 55in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-005 Slim trolley cart, and NMP660 Google Chromebox.

ViewBoard IFP5550-E3 bundle includes the following items: - ViewBoard IFP5550 4K Interactive display (UPC766907938814 / Serial V70YYWWnnnnn) - WMK-047-2 wall mount (UPC 766907909227 / Serial V1BYYWWnnnnn)

IFP Bundles includes IFP5550 55in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 wall mount, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

IFP Bundle includes IFP5550 55in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-001 Mobile trolley cart, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

55" Interactive display package - includes the ViewSonic IFP5550 55" 4K Ultra HD Interactive display and the ViewSonic LB-STND-005-3 Motorized trolley stand

IFP Bundle includes IFP6550 65in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-005 slim trolley cart, and NMP660 Google Chromebox.

ViewBoard IFP6550-E3 bundle includes the following items: - ViewBoard IFP6550 4K Interactive display (UPC766907912814 / Serial V25YYWWnnnnn) - WMK-047-2 wall mount (UPC 766907909227 / Serial V1BYYWWnnnnn)

IFP Bundle includes IFP6550 65in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 wall mount, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

IFP Bundle includes IFP6550 65in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-001 Mobile trolley cart, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

ViewBoard IFP6552-1C-E1 bundle includes the following items: - ViewBoard IFP6552-1C 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 wall mount

IFP Bundle includes the following items: - ViewBoard IFP6552 4K Interactive display, LB-WIFI-001 Wireless AC adapter, and VB-STND-001 Mobile trolley cart

IFP Bundle includes the following items: - ViewBoard IFP6552 4K Interactive display, LB-WIFI-001 Wireless AC adapter, and VB-STND-005 slim trolley cart

ViewBoard bundle includes the following items: - ViewBoard IFP7550 4K Interactive display (UPC766907901610 / Serial UZWYYWWnnnnn / V33YYWWnnnnn / WADYYWWnnnnn/W9KYYWWnnnnn) - NMP760 Chromebox (UPC 766907011975 / Serial WGTYYWWnnnnn)

IFP Bundle includes IFP7550 75in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-005 slim trolley cart, and NMP660 Google Chromebox.

ViewBoard IFP7550-E3 bundle includes the following items: - ViewBoard IFP7550 4K Interactive display (UPC766907901610 / Serial UZWYYWWnnnnn) - WMK-047-2 wall mount (UPC 766907909227 / Serial V1BYYWWnnnnn)

IFP Bundle includes IFP7550 75in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 Wall mount, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

IFP Bundle includes IFP7550 75in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-001 Mobile trolley cart, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

ViewBoard IFP7552-1C-E1 bundle includes the following items: - ViewBoard IFP7552-1C 4K Interactive display - LB-WIFI-001 Wireless AC adapter - WMK-047-2 wall mount

IFP Bundle includes the following items: - ViewBoard IFP7552 4K Interactive display, LB-WIFI-001 Wireless AC adapter and VB-STND-001 Mobile trolley cart

IFP Bundle includes the following items: - ViewBoard IFP7552 4K Interactive display, LB-WIFI-001 Wireless AC adapter and VB-STND-005 slim trolley cart

IFP Bundle includes IFP8650 86in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-005 slim trolley cart, and NMP660 Google Chromebox.

ViewBoard IFP8650-E3 bundle includes the following items: - ViewBoard IFP8650 4K Interactive display (UPC766907900415 / Serial UZUYYWWnnnnn) - WMK-047-2 wall mount (UPC 766907909227 / Serial V1BYYWWnnnnn)

IFP Bundle includes IFP8650 86in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 wall mount, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

IFP Bundle includes IFP8650 86in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-001 Mobile trolley cart, and SW-072 42Gears SureMDM Cloud 36-Month Subscription License.

ViewBoard IFP8652-1C-E1 bundle includes the following items: - ViewBoard IFP8652-1C 4K Interactive display, LB-WIFI-001 Wireless AC adapter, WMK-047-2 wall mount

IFP Bundle includes the following items: - ViewBoard IFP8652 4K Interactive display, LB-WIFI-001 Wireless AC adapter and VB-STND-001 Mobile trolley cart

IFP Bundle includes the following items: - ViewBoard IFP8652 4K Interactive display, LB-WIFI-001 Wireless AC adapter and VB-STND-005 slim trolley cart

IFP Bundle includes IFP9850 98in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, NMP660 Google Chromebox, and WMK-047-2 Wall mount.

IFP Bundle includes IFP9850 98in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, NMP660 Google Chromebox, and VB-STND-001 Mobile trolley cart.

IFP Bundle includes IFP9850 98in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, VB-STND-005 slim trolley cart, and NMP660 Google Chromebox.

IFP Bundle includes IFP9850 98in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, SW-072 42Gears SureMDM Cloud 36-Month Subscription License, and WMK-047-2 Wall mount.

IFP Bundle includes IFP9850 98in ViewBoard 4K Interactive display, LB-WIFI-001 Wireless AC adapter, SW-072 42Gears SureMDM Cloud 36-Month Subscription License, and VB-STND-001 Mobile trolley cart.

216IN Directview LED Display, 2.5mm pixel, 1080P, 35mm thickness, Android 8.0,100-600nits, Full front maintenance, ViewBoard Cast, LED lifetime100000hours

The corporate keeps towards the operation concept "scientific administration, superior quality and performance primacy, client supreme for Large Touch Screen Monitor, High Brightness Tft Lcd Display Panel, Lcd Module Tft, We are looking forward to forming successful business relationship with new clients in the near future!

We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success for PriceList for Tft Monitor Computer – 19 inch 1280×1024 Standard Color TFT LCD Display – DISEN , The product will supply to all over the world, such as: Malta, Libya, Iraq, If you need any of our products, or have other items to be produced, please send us your inquiries, samples or detailed drawings. Meanwhile, aiming to develop into an international enterprise group, we look forward to receiving offers for joint ventures and other cooperative projects.

As a TFT LCD manufacturer, we import mother glass from brands including BOE, INNOLUX, and HANSTAR, Century etc., then cut into small size in house, to assemble with in house produced LCD backlight by semi-automatic and fully-automatic equipment. Those processes contain COF(chip-on-glass), FOG(Flex on Glass) assembling, Backlight design and production, FPC design and production. So our experienced engineers have ability to custom the characters of the TFT LCD screen according to customer demands, LCD panel shape also can custom if you can pay glass mask fee, we can custom high brightness TFT LCD, Flex cable, Interface, with touch and control board are all available.

Do you have a Scriptel LCD tablet and need to adjust the brightness or contrast? Perhaps your work environment is dark (movie theater or warehouse), or has a lot of light (dental clinic, reception desk) and you need to adjust the brightness or contrast for better clarity?

You can alter the brightness or contrast on your Scriptel LCD tablet screen (ST1525, ST1526, ST1550, ST1551, ST1570, ST1571) using the ScripTouch Toolbox (except on the Desktop LCD models – ST1500/1B. On these models only, the backlight may be turned on or off, but cannot be dimmed). This is how you do it.

Great! Now, using the arrows on the Brightness and Contrast sliders, move them to the right or left to adjust your LCD tablet screen to your own requirements. You will see the result on your LCD tablet screen instantly.

There are different ways to adjust the screen brightness in Windows 10 and 11. You can either adjust the brightness yourself in the operating system, have the brightness adjusted automatically, or change the brightness directly on the external screen.

Find and click on the “Display” tab (or “Screen” in some cases). In the right-hand panel, you will see a slider that lets you freely adjust the screen brightness. There’s also an option to turn on Night light. You can turn on night mode immediately (without specifying a time of day) by left-clicking on “Night light settings”. Adjust the strength of the night light or alternatively, simply move the slider to “On”.

To open the System settings without going to the main Windows settings screen, right-click in any empty space on your desktop and select “Display settings” in the menu that opens.

The screen brightness can be adjusted with a shortcut so you avoid having to take a detour by navigating around lots of menus. Many keyboards have two F keys with a sun symbol in the top row. The “Adjust brightness” function is assigned to these keys as a secondary function. To execute this, press the [Fn] + [lighter/darker] keys simultaneously. Repeat this brightness control process until the desired brightness is set.

The Action Center is a quick way of accessing various settings, including the screen brightness settings. Windows 10 and Windows 11 both have these options, although the terms they use are slightly different.

If there is no brightness control slider in the Action Center box, look for a tile labeled “Brighter” or the sun symbol. Keep clicking on the tile with the left mouse button until the screen is bright enough for your needs.

On computers with external monitors, the brightness is usually adjusted directly on the monitor instead of the operating system. Using the physical buttons on your monitor, you can call up the on-screen display, which allows you to adjust the brightness. The exact position of the buttons and the structure of the on-screen menus depends on the device and manufacturer, but there are usually small symbols on or above the corresponding buttons to guide you. If you’re in any doubt, refer to the user manual for your monitor to find out how to change the screen brightness.

Some computer models have an integrated light sensor, which enables the screen brightness to adjust automatically to changing light conditions. It can also be found in the system settings.

The night mode in Windows also offers automatic adjustment. However, instead of using the actual lighting conditions to adjust the screen brightness, it works depending on the time of day. Users can either set a period for warmer lighting themselves or use sunrise and sunset times. Windows is already aware of these times.

For the video display developer LCD panels are available in many sizes and resolutions, they are also available with many choices of maximum brightness. The following considers the topic of LCD panel brightness, the choices, the methods for adjusting brightness and some brightness adjustment scenarios.

LCD panels are generally rated as to their maximum brightness level which is expressed in Nits, it is equal to Candela/sqm (cd/m2), and this will be at a particular color temperature as noted in the specification, usually 10,000 K. In terms of a practical understanding, the following is a rough guide:

Outdoor displays range from a low end of 700 nits to typically 1,000 or 1,500nits and up with 2,000~2,500nits and even up to 5,000nits seen with some models. This may include standard LCD panels, custom LCD panels as well as custom cut LCD panels.

Virtually all LCD panels have a LED backlight these days, these are powered by an LED driver board. Brightness control via the driver board will be by one of two methods:

PWM (Pulse Width Modulation): This varies the duty cycle of the backlight “on time” – it is predominant in modern LCD panel LED backlight designs to enable support for digital brightness controls.

Analog: Uses a simple variable voltage to adjust brightness, for example this might be a dial or slider type potentiometer / variable resistor. To see how to enable analog backlight adjustment visit: https://www.digitalview.com/blog/brightness-adjustment/

One of the advantages of LED for the backlight is the range of adjustment that is possible, however it is important to note that the range varies significantly from model to model. Some industrial panels can be turned to very low light levels making them suitable for use in special environments such as at night. Lower cost panels limit the range of brightness to what might be required for typical usage, whereas panels with full range dimming from full off to full on require more complex backlight drivers.

Backlight lifetime: Many LCD panels have a backlight lifetime rating of 50,000 hours (typically measured to half brightness), this can be extended by running the LED backlight at a lower brightness level. Some panels may only offer 30,000 hours as a lower cost solution while other panels may offer up to 100,000 hours for high end applications.

An LCD panel backlight may be constructed so the LED’s are mounted directly behind a light guide diffuser, or they may be mounted along one or more edges of the light guide.

Active backlight: This is a function of some LCD panel backlights to automatically adjust the backlight brightness in response to the image. For more advanced systems there is an LED array making up the LED backlight, this adjusts the brightness in areas localized to the image being shown. This can greatly enhance the brightness across the display and is being used primarily with video, for example on consumer TV sets. It is not useful to all image types, for example a spreadsheet or content like maps or data is not likely to benefit.

Local dimming: Some LCD panels with direct LED may support local dimming so the LED’s are dimmed in response to the image close to them. This will not be at the same resolution as the LCD panel itself but will help greater contrast over the display by enhancing the brightness in bright areas of the image and darkening the image in dark parts of the image.

For the LCD monitor manufacturer it is important to consider that any covering over the LCD panel will reduce the brightness. For example the protective glass over a digital signage display, or a touch screen, or a semi-silvered mirror. So if a specific brightness is required the measurement should be taken with these in place.

There are various relatively low cost brightness meters available, typically in the couple of hundred dollars range. It is difficult to comment on the accuracy of these but we have found them to be within 5% of each other, though more importantly they do appear to be quite consistent in measurement so good for measurement comparisons. For more accurate measurement there are light meters from companies such as Minolta that can be calibrated, the cost may run into several thousand dollars.

Examples of light meters costing a few hundred dollars include SpyderX by Datacolor (needs a PC), a handheld meter is the SM208 by Sanpometer (search SM208 meter). Note: Many light meters, including smartphone apps, will be meters used for photography and not give readings in nits (or candelas). LCD panel specifications are typically measured using nits.

PWM and Analog: Most Digital View LCD controllers support PWM and Analog as a method for adjusting the backlight brightness level (this is noted in the column headed “Other” on the controller board summary table: https://www.digitalview.com/controllers/lcd-controllers-home.html. Also see https://www.digitalview.com/blog/brightness-adjustment/ for a guide to using a dial or slider type variable resistor to adjust the backlight.

DPMS (Display Power Management System): The backlight will be automatically turned off after a period if there is no valid video signal being received.

Ambient light sensor: The backlight is adjusted for brightness or powered off depending on ambient light conditions. This uses a light sensor attached to the LCD controller board, see https://www.digitalview.com/blog/light-sensor-app-note/ for more details.

The specifics of the backlight control are documented separately for each LCD controller model (product summary here) in the product manual available for download on the product page.

Note: There are two ways to adjust the perceived brightness of a LCD panel or LCD monitor, the backlight and the black-level. Very often, particularly in the past, the monitor brightness setting adjusted the black-level, this adjusts the LCD but not the backlight.

Color, color temperature etc: In addition to adjusting the brightness other settings may be adjusted as well. For example the color temperature or for example a switch to green monochrome for night vision.

Night-safe lighting (update) : Dual-rail backlights can also be supported. These special backlight enable normal brightness and extreme low level brightness with custom night-safe lighting. Contact us for details.

Note: We have a blog on methods for implementing an ambient light sensor with Digital View LCD controller boards to automatically adjust the backlight or system power, see: Ambient Light Sensor

Update March 2019: Most of the above remains unchanged except for the increased availability of high bright LCD panels of around the 1,000 nit to 2,500 nit range. AUO for example has a number of large size LCD panels with 1,500 nit brightness for the digital signage market. Tianma has panels under 20″ with 1,000 nit to 1,500 nit brightness for various outdoor applications.

The other change is that high bright panels are now increasing edge-lit, this makes the panels thinner and these panels tend to use less power than the previous models. One of the benefits for monitor designers is easier heat management and reduced overall display system costs.

LCDs don’t emit light on their own and must instead have a backlight that shines through the LCD material to display an image. Today’s LCD-based displays use a number of LEDs for the backlighting. To achieve a greater contrast ratio than a standard dynamic range display, the LEDs in the backlight change their brightness level, allowing the display to dim the backlight for darker blacks and brighten it for brighter whites, which creates a wider contrast ratio. There are several different dimming designs that can be used in the backlight to accomplish this.

Global Dimming: The backlight, which consists of a string of LEDs on one edge of the LCD panel, is treated as a single “zone” and is dimmed for dark scenes and brightened for bright scenes. This is the least expensive type of dimming and can be accomplished with a standard LCD panel. This approach works well for scenes with a limited dynamic range. This type of dimming is typically found on notebooks as it has the lowest power consumption of any dimming technique and generates the least amount of heat. The disadvantage of this design is that the simultaneous contrast ratio is never greater than the contrast ratio of the LCD panel, usually around 1000:1.

Local Dimming: This represents a wide variety of different sub-designs, each detailed below. What differentiates all of the local-dimming designs from global-dimming is that global dimming has a single backlight zone, the entire screen’s backlight is adjusted as one control, in local dimming the screen’s backlight is split into segments which can be independently adjusted.

1D Local Dimming: This design also uses an “edge-lit” string of LEDs, but in this case groups of LEDs on the string can be independently controlled. For most displays, the string of LEDs is located at the bottom of the panel, resulting in a number of vertical zones, equally spaced across the horizontal edge of the display. An edge-lit LED string typically contains between eight and sixteen LED groups, resulting in eight to sixteen dimming zones. This design allows for simultaneous contrast ratios of 6,000:1 to 100,000:1. 1D local dimming is currently the most common design found in HDR televisions and displays.

1.5D Local Dimming: Similar to the 1D local dimming, using edge lighting. However in this design an LED lighting string exists on two sides of the panel, typically top and bottom although left and right designs also exists. The advantage of this design is that it typically has 2×16 zones, so twice as many zones as 1D, but more importantly the top and the bottom of the screen are independently controlled, versus the 1D design where each zone is typically the full vertical height of the screen.

2D or Full array local dimming (FALD): In this design the backlight LEDs are moved from the edge of the panel to the rear of the panel and are arranged in a two-dimensional matrix of LEDs. Each LED is independently controlled and adjusts the brightness of just one “square of a checkerboard” on the display, although typically they are rectangles rather than perfect squares. Today’s HDR displays and televisions typically have between 384 and 1152 zones. These designs are the most expensive, due to the complexity of the circuitry and the processing demands required. The design can also generate a large amount of heat, and often requires cooling fans and/or heat sinks to be placed behind the LCD panel to draw heat away from the display electronics. Full array local dimming produces the best image quality of all of these designs and can achieve simultaneous contrast ratios of 20,000:1 to 500,000:1. Due to the high cost of this design, these displays command the highest prices and typically cost thousands of dollars.

Active-dimming: is the term VESA adopted for one of the new tests in our Certification Test Spec v1.1 (CTS v1.1) where we added a new kind of validation procedure to ensure that displays were actually dimming the backlight based on real-time analysis of the video content, rather than merely only dimming when metadata changes occurred in the video stream. It would be typical that during a movie or game that the metadata for HDR10 would not change, however each frame may have a different peak luminance than the prior frame, and thus could adjust the backlight accordingly. This yields better power saving, and better HDR blacks. The new tests in CTS v1.1 ensure that we test, without changing the metadata of the signal, a dramatic reduction in peak luminance from a full-white checkerboard, to a checkerboard where the white boxes are only 5 cd/m2, this provides ample opportunity for the dimming algorithm to reduce the backlight power. When reducing the backlight power the black level of the black segments of the checkerboard will also reduce, and this is what is measured and used in our calculation of active-dimming stops, (for the more technical, “stops” originally used in photography are a power-of-2 logarithmic function).