lcd display viewing angle brands

This monitor will display a 250:1 contrast ratio when viewed head on or at a 90° angle from the surface of the monitor. The contrast ratio will decline as you view the display from the side eventually going down to 10:1 or 5:1 contrast ratio at an angle of 70° from head on. As you move away from the maximum contrast at the straight on viewing position, the brightness of the white may increase or decrease and the black may increase or decrease. However, the contrast (ratio of the two) will decrease as you move away from normal viewing. Please note, this is just a general representation and not factual for every monitor with 140° viewing angle. All values are estimates.

Other factors such as the display"s brightness, ambient light and contrast conditions all play a part in the readability of the display. As mentioned above, viewing angle is defined using only the contrast ratio. However, even within this standard viewing angle, the colors or tones on the display panel may look different from the real color/tone, or they may become invisible, depending on the combination of displayed colors (background color, text color and switch color). For example, if the background color is bright and you look at the screen from below, the colors may appear inverted so that the text color and switch color darken to the point where they become invisible. Or, when the background color is dark and you look at the screen from above, the colors may again appear inverted, so that the text color and switch color brighten to the point that they become invisible. As a result, be sure to choose your screen colors carefully, so they produce an effective combination for the LCD panel"s operation environment.

If you usually watch TV alone from directly in front, you most likely don"t need a wide viewing angle. You should just turn the television to face you directly. However, if you watch TV with multiple people in a wide seating arrangement, you should benefit from wide viewing angles as those viewing off-center still see an accurate image.

Also, viewing angles have an effect if you sit very close, and in particular if you use the screen as a computer monitor. If you sit too close to the screen of a TV with narrow viewing angles, the edges of the screen might look darker and washed out. If it has wide viewing angles, however, the image remains accurate no matter where you sit.

There are a few competing TV technologies and panel types that each present their advantages and disadvantages regarding viewing angles. For LED-backlit LCD TVs, the LCD panel technology used is a big determining factor for how well a TV retains picture quality at an angle. There are two main types used in TVs: IPS and VA, and the differences between each panel type are noticeable; you can learn more about them here.

IPS panels are superior to VA panels when it comes to viewing angles. They"re generally recommended for wide seating arrangements because the image remains accurate when viewing from the side. On the other hand, the image on a VA panel quickly loses accuracy as you move off-center, and it can get pretty noticeable when sitting at a wide angle. This doesn"t mean IPS panels are perfect, however, as they have a lower contrast ratio than VA panels, so choosing one type over the other is a trade-off between viewing angles and contrast.

OLED is a different technology that uses self-emissive pixels. Each pixel turns itself on and off and emits light in all directions. This means that OLEDs have very wide viewing angles, even better than IPS panels, and they also have a near-infinite contrast ratio.

To improve viewing angles on VA panel TVs, companies have introduced viewing angle technology, like Samsung"s "Ultra Viewing Angle" and Sony"s "X-Wide Angle". This improves the viewing angles a bit at the cost of its contrast, but the contrast still isn"t as low as IPS panels. These TVs meet a common ground between viewing angles and contrast, without a decrease in overall picture quality. Samsung and Sony are the only two major manufacturers that have introduced such technology, and they"re generally only available on higher-end models.

Updated: Oct 28, 2019:Despite all the advances in LCD display technology viewing angle is still an important topic, panel viewing angles are still poor, good, better and best, but none are 100% perfect.

The viewing angle of an LCD panel is typical given based on the normal aspect ratio which is generally landscape for the types of LCD panels we work with. It is quoted for both horizontal and vertical in degrees from perpendicular to the display or as a total of left & right and up & down. So for example the newer IPS panels now claim up to 89 degree viewing angle from perpendicular for both horizontal and vertical.

Specifications are no replacement for actually seeing and evaluating an LCD panel, the reason is that there can be characteristics that the specifications don’t mention. For example I have seen an LCD panel with excellent viewing angle specifications but when testing it I could see a color shift at around 45 degrees from perpendicular.

Further to the previous point, even though LCD panel specification may quote H (horizontal) & V (vertical) viewing angles the performance in portrait model may be quite different to landscape mode.

I realize not every application needs or even suits having a wide viewing angle. Digital signage displays clearly benefit from a wide viewing angle if used in a poster or menu board but some overhead information displays need a good 6 o’clock viewing angle, ie when viewed from below, but the 12 o’clock viewing angle may not be critical.

IPS panels have had quite a few years of being a leading technology for excellent viewing angle with not only impressive specifications but genuinely excellent results. More recently companies like AUO have been showing panels with a new technology that appears to provide not only equivalent viewing angles but also excellent color fidelity over the range of viewing angles.

At this time the viewing angle of a LCD panel is not a tunable setting, it is a fixed part of the LCD panel design. Filters can be added by reworking the panel or adding to the front but these will typically limit rather than extend the viewing angle.

In this episode of the Display 101 series, we explain the viewing angle of smart displays. How to choose the right viewing angle for your project? Read on to get the answers.

This concept is closely related to the grey scale inversion phenomenon. When the user exceeds a certain angle (monitor viewing angle), one can note a sudden change in displayed colors. It mainly emerges with the grey color’s domination in the displayed image.

The viewing angle monitor has is measured from the display’s normal axis to each of the four directions. Theoretically, the maximum LCD view angle is 90° and might vary for each measuring direction. The three-dimensional angular range is called a viewing cone.

TN type is the most cost-efficient technology. In TN type the angles are in most cases narrower, compared to other types.  Low prices and short matrix reaction time compensate for the smaller viewing cone. To extend the monitor viewing angle, you can add theO-film to the display. When buying a TN-type display you should always pay attention to the viewing direction expressed in an hour angle. It describes the direction from which the user should look at the display.

IPS matrix technology has most of VA’s advantages. It also has incredibly good color reproduction and the highest viewing angles on both axes. The most common IPS disadvantage is the black color depth which is lower than in the VA type.

If the application requires a high viewing angle monitor, choose the display with full viewing angles (178.5°~180° on each axis). In this case, you should look for MVA and IPS type displays.

NOTE: Do not mistake the viewing direction with greyscale inversion. Greyscale inversion is always opposite to the viewing direction. For example, the 12 o’clock display will have a color inversion at 6 o’clock.

The in between solution is the TN type with viewing angles extended by adding O-film. We described the O-film solution in one of the earlier articles:

We hope you enjoyed this post from the Display 101 series. If you would like us to explore a particular topic in this series, send us a message or comment on our social media.

Have you ever noticed sitting on the front couch your TV has perfect image quality. But if you watch the TV from a side couch or at a different angle, the image quality gets distorted.

You might be wondering why picture accuracy changes when viewed from side or off-angle? Actually, your TV has a narrow viewing angle. Yes, if your TV can’t retain image accuracy from different sides or angles, it has narrow viewing angles?

If you are facing this problem with your TV, the solution is to replace the TV with a TV with wide viewing angles. If you want to know what type of TV has the best viewing angles, stick to this article.

A TV viewing angle means the angle at which you can watch the TV and get clear and accurate picture quality. A TV with a good viewing angle is based on at what angle the imageColor Washout: Angle at which the color loses the saturation.

For a TV that has a 0 degree viewing angle, you will have to watch that TV from the front for an accurate image. If you watch that TV from different sides, the TV image would get washed out, look dark and less saturated.

The larger the TV viewing angle, the more off-angle you can watch the TV without any distortion. Therefore,  for a wider seating arrangement, you should choose a TV with a wide viewing angle to get  an accurate image even from the sides.

Variation in viewing angles, whether vertical or horizontal, changes the picture quality. Horizontal viewing angle affects how much the TV image remains accurate from a side. A TV vertical viewing angle means how accurate the image of the TV looks from below and above.

With evolution in technology, now viewing angle and quality of TV pictures isn’t much of an issue. Currently, TVs are displaying much wider and accurate off-angled images. The larger a TV’s viewing angle is, the more off-axis you can watch it without any degradation.

For TVs, the vertical maximum viewing angle is 70 degree below/above the center. The maximum horizontal viewing angle is also 35, right and left from the center of the TV screen. But in most cases, a TV with 20-40 degree viewing angle is regarded as good.

Want to check whether your current TV has a wider viewing angle. It’s something you can test yourself at home. All you need to do is turn on the TV and walk around. Observe, if the picture quality changes when you are moving to a different side. If the screen distorts, it means your TV has narrow viewing angles. Whereas, if it stays the same. Then your TV has wider angles for viewing.

You might have heard of various display types such as LCD, LED, QLED and OLED. Which of these types support wide viewing angles? From our research, the televisions with best viewing angles are the OLED TV screens.

OLED TVs are an excellent choice for watching a movie or show in larger seating arrangements. OLEDs have an average of around 70 degrees of viewing angle from the center.The QLED and LED TV have a viewing angle of an average of 20 to 40 degrees.

For LED-backlit LCD TVs, two different types of panels are used i.e. VA or IPS. IPS panels LEDs are betterthan VA panels for better viewing angles. IPS panels are recommended for wider seating arrangements because they do not lose accuracy, when viewing from the sides.

Whereas VA panel image gets distorted when viewed from sides. The difference is pretty noticeable even by a layman eye at wider angles. However, IPS panels are still not perfect. They have a low contrast ratio and VA Panels have a higher contrast ratio. So if you are buying a TV, think what’s more important to you, image contrast or a wide viewing angle. But yes, neither of them is as good as OLED TV screens.

Brands like Samsung and Sony have introduced Ultra Viewing Angle and X-Wide Angle on VA panels. These TVs displays are also a good balance between contrast and viewing angle.

OLEDs are way better, when it comes to a wider viewing angle. Because OLED uses a different technology than the LED and QLED technology. While LED and QLED lets the LED lights filter through a backlit panel to display the image.

The OLEDs have a self-emissive pixel technology. OLED is a screen display panel that emits light itself at every angle. In OLED each pixel can turn itself off and on independently. Hence, OLEDs have wider viewing angles, winning the game from IPS panel displays. They also have a near infinite contrast ratio.

Hence, OLEDs are famous for displaying accurate colors. They have made their name in homes, apartments and the lives of people. Their compact and thinner design allows clearer wide angle viewing.Picture quality: outstanding black levels with better contrast ratio

Here, we would be looking at 5 of the best wide viewing angle TVs. We chose these top 5 wide angled viewing TV’s after hours of research and comparison study. This study is actually based on off-angle view picture quality. It includes the change in color, brightness, black levels and gamma when viewed from different angles. Then trust on the brand, customer reviews, sound quality and durability.

When customers compare your product with your competitor"s, correctly choosing the LCD viewing direction makes all the difference between a product that looks ‘okay,’ and a product that can grab and hold your customer"s attention. If the display on your product looks sharp, the whole product will look sharp. This can be accomplished at no extra cost simply by understanding how to locate the optimum viewing angle.

LCD display modules are built to provide the sharpest contrast and readability in one of four directions called the ‘the viewing angle’ or ‘optimum viewing direction.’ These four directions follow the format of a clock. With twelve o"clock viewing (12:00) being the top view and six o"clock (6:00) the bottom.

When specifying the best viewing direction for your new design, put yourself in the place of your customer. “From what direction will this display be viewed?” In other words, where will your end user be standing when they use your product?

Whereas a very tall person, say 6’5” or taller, pumping gas into their car, would look down at the LCD display, watching their dollars fly by as they fill up the tank. This would be a twelve o’clock (12:00) or top view.

Two other possible viewing angles include: Three o’clock (3:00 or left side view) and nine o’clock (9:00 or right-side view), however these angles are rarely used, 6:00 view is the default value for 80% of all monochrome displays. So, if you’re not sure which viewing angle to choose, go with 6:00.

There is no cost difference between viewing angles, but for TFT"s there may be a longer lead-time or MOQ (Minimum Order Quantity) than for monochrome displays.

The LCD viewing angle for LCD’s are described by two terms: 6 o’clock (bottom view) and 12 o’clock (top view). This has nothing to do with time itself, but with what position you are in relation to the monitor (LCD)… the position being the center of the clock and viewer position represented by the corresponding clock face numeral position.You can get other viewing angles such as 3 o’clock and 9 o’clock but these are special order!

The majority of displays we sell are 6:00 view. These displays are best viewed when sitting or when standing with the LCD positioned even or above your head. (see photo below).

Different Glass structure comes with different viewing angles. Please refer to the image chart (right) to see unedited pictures of the actual glass types.

LCD is a backlight display device. The light is provided by the backlight behind the LCD module. When the backlight passes through the polarizer, liquid crystal, and orientation layer, the output light has directivity. That means most of the light is coming straight out of the screen. Therefore, when you look at the LCD from a large Angle, you can’t see the original color, some time even just white or black color can be seen. The Angle (left and right, up and down) at which the original color appears on the screen is called the Viewing Angle of TFT LCD display Screens.

There are different visual effects from different view angle when viewed from the middle and side of the LCD display screen, the intensity of light entering the human eye is different. For the same picture, there is light and dark part, and the contrast is different. With the definition of perspective, the corresponding perspective of the LCD screen is perspective within the acceptable contrast range of human eyes.

As long as the horizontal viewing angle reaches 120 degrees and the vertical viewing angle reaches 140 degrees, the LCD on the market can fit the application needs of most users. The latest LCD screens are made with wide-angle technology, which can reach up to about 150 degrees, reducing the inconvenience caused by the small viewing angle.

There are 3 popular techniques for a wide display viewing angle so far, which are TN+FILM, IPS(in-plane -SWITCHING), and MVA(multi-domain VERTICAL alignment).

Add a layer of wide-viewing angle compensation film. This compensation film can increase the visual Angle to about 150 degrees, which is a simple and easy method and is widely used in LCD.TN+FILM may not be the best solution for manufacturers, but it is the cheapest solution, so most Taiwanese manufacturers use this method to build 15-inch LCDs.

The technology is the LCD panel technology introduced by Hitachi in 2001. The biggest feature of the IPS panel is that its two poles are on the same surface. Since the electrode is in the same plane and the liquid crystal molecules are always parallel to the screen in any state, the opening rate and the light transmittance will be reduced. Therefore, the application of IPS in LCD TV requires more backlights.

The advantage of the IPS panel is high visual Angle, fast response, accurate color restoration, cheap price. However, the disadvantage is that the light leakage problem. And the black purity is not enough, which is slightly worse than PVA. So it needs to rely on the compensation of optical film to achieve better black purity. Compared with other types of panels, the screen of the IPS panel is relatively “hard”, and it is not easy to appear water pattern deformation with a gentle stroke of the hand, so it is called a hard screen.

The idea is to add protrusions to form multiple visible areas. The liquid crystal molecules are not arranged vertically at rest, but horizontally when a voltage is applied, allowing light to pass through the layers. MVA technology improves viewing angles above 160 degrees and provides a shorter response time than IPS and TN+FILM.

In the MVA (multi-domain vertical alignment) display technology, horizontal and vertical viewing angles are wider than those of the first two technologies, and there is basically no blind Angle or bright spot. The viewing Angle is divided into horizontal and vertical viewing angles. The horizontal viewing angle is the viewing range from the center of the vertical central axis to the left and right. The vertical viewing angle is the viewing range from the center of the horizontal center axis to the up and down. Viewing Angle takes “degree” as the unit. Currently, the commonly used annotation form is to mark the total horizontal and vertical range directly, such as 150/120 °. At present, the lowest visual Angle is 120/100 ° (horizontal/vertical), which cannot be accepted if it is lower than this value.

If you are interested in STONE TFT LCD module manufacturers or have any questions, please feel free to contact us, we will wholeheartedly for your service.

Viewing angle is a very important factor when evaluating LCD display"s performance. Understanding how to locate the optimum viewing angle and choose the right LCD display will make your product looks sharp without extra cost.

LCD viewing angle is the maximum angle from which customer can view the screen well. "Viewing well" is commonly recognized as having at least 10:1 contrast and without grayscale inversion.

At time of manufacturing, LCD manufacturer designs LCD panel in a way that it is best viewed from an angle (called Bias) offset from the perpendicular by certain degrees, to accommodate as many applications as possible. Viewing angle is the angle covers both side of Bias angle, where the LCD is still "viewing well".

When reading an LCD"s specification, you will see the term "viewing direction". Viewing direction is defined following the format of a clock. Like figure below, Z axis is Normal, X axis is Horizontal and Y axis is Vertical. An LCD"s viewing angle "above" Z axis is having 12 o"clock viewing direction. So 6 o"clock viewing direction LCD is best viewed from "below" Z axis.

Theoretically, LCD manufacturer can produce LCD with 3, 12, 9 and 6 o"clock viewing direction. But in practice, we usually look at LCD display from 12 or 6 o"clock angle.

Using a simple TN type TFT LCD as example, its viewing angle is typically 45~65 degrees. Adding extra wide polarizer film (EWP) to the TN type LCD, the viewing angle may be increased about 10 degrees. Similarly, an O-film enhancement polarizer will widen the viewing angle to 75 degree in each direction. However, these enhancements bring along contrast reduction. Adjusting LCD contrast is necessary.

Using a liquid crystal display with proper viewing angle is very important to your product"s success. And we should keep in mind that optimized contrast is crucial, too. Both parameters define the visual appearance of the LCD display and the appeal of your product. Choices are based on cost performance trade offs.

For example, if your project requires a wide viewing angle 2.4" TFT LCD. TN TFT panel with O-film solution might be better than using IPS LCD. Topway engineers are here to help you making those design decisions.

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Viewing angle refers to a range of angles where the image displayed on a monitor remains suitable to the user. Generally, all monitors will show an optimum image when you"re sitting near the center of the panel. However, things can quickly go awry when you shift the position of your head left, right, up or down depending on what type of panel your monitor users.

Regarding vertical viewing angles, it"s generally accepted that the center of the display should be somewhere between eye level and thirty degrees below your line of sight. Anything outside those parameters for vertical viewing angles could lead to eye strain. However, every person is different, and depending on your height, desk height and other factors, it might not be possible to hit this "sweet spot" in practice.

With LCD technology used in today"s computer monitors, the horizontal viewing angle typically maxes out at 178 degrees. But almost no one views a monitor at such extreme angles, and monitor manufacturers often fudge the numbers a bit when it comes to this specification. So, for example, two monitors could both be rated with a 178-degree horizontal viewing angle yet exhibit widely different performance which reaching the outer limits of that range.

So, what happens when you reach the edge of the viewing angle cone of a monitor? Depending on the monitor in question, you may see various amounts of brightness drop-off, a decrease in contrast ratio and color shifting. As you can see in the image above, IPS (in-plane switching) panels tend to have less color shifting off-axis than VA (vertical alignment) panels. TN (twisted nematic) panels, a much older technology, tend to be far interior to IPS and VA in both horizontal and vertical viewing angles.

Monitor manufacturers have attempted to compensate for some of these viewing angle deficiencies inherent with curved VA panels, which are popular in the gaming space.

In display technology parlance, viewing angle is the angle at which a display can be viewed with acceptable visual performance. In a technical context, the angular range is called viewing cone defined by a multitude of viewing directions. The viewing angle can be an angular range over which the display view is acceptable,

The image may seem garbled, poorly saturated, of poor contrast, blurry, or too faint outside the stated viewing angle range, the exact mode of "failure" depends on the display type in question. For example, some projection screens reflect more light perpendicular to the screen and less light to the sides, making the screen appear much darker (and sometimes colors distorted) if the viewer is not in front of the screen. Many manufacturers of projection screens thus define the viewing angle as the angle at which the luminance of the image is exactly half of the maximum. With LCD screens, some manufacturers have opted to measure the contrast ratio, and report the viewing angle as the angle where the contrast ratio exceeds 5:1 or 10:1, giving minimally acceptable viewing conditions.

The viewing angle is measured from one direction to the opposite, giving a maximum of 180° for a flat, one-sided screen. A display may exhibit different behaviour in horizontal and vertical axes, requiring users and manufacturers to specify maximum usable viewing angles in both directions. Usually the screens are designed to facilitate greater viewing angle in horizontal level, and smaller angle in the vertical level, should the two of them be different in magnitude.

Narrow viewing cones of some types of displays have also been used to bring a measure of security in businesses, where employees handle private information in the presence of customers, banks being one example. Rectangular filters fitting to the computer monitors have also been sold as accessories for this purpose.