Glare-type display
As a glare-type displays (from the English for screen type with a gloss or blinding surface ) are flat panel displays designated which have a highly reflective surface.
particularities
TFT panels on flat screens are mainly made of glass and therefore inherently have a smooth, reflective surface. The matting of traditional flat screens is achieved by a special diffuse coating that scatters the ambient light. This coating is missing in glare-type displays. Companies specializing in display repairs now also offer subsequent lamination of these special films, so that glossy screens can also be anti-reflective afterwards. Manufacturers of glare-type displays advertise higher contrast values as the matt surface of traditional flat screens reduces the contrast ratio. The missing scatter is particularly visible in the case of hard transitions between extreme differences in brightness (e.g. black → white). Since glare-type displays are mostly liquid crystal screens with simple TN panels, the contrast range of such panels cannot be compared with higher-quality IPS and VA panels.
Because of the often strong reflections, glare-type displays are ergonomically questionable and not suitable for working in environments with strong light sources. Especially in the professional environment, reflective displays have to be checked especially because of the requirements in the appendix of the VDU work regulation (BildarbV). However, some glare-type displays use tinted foils, the coating of which leads to a less clearly perceptible direct glare for the user.
Norms
The Workplace Ordinance (basis: European Screen Directive 90/270 / EEC ) requires screens to be largely free of reflections and reflections. However, this only applies to so-called computer workstations.
The ISO 9241-7 standard (Ergonomic requirements for office work with display devices - Part 7: Requirements for visual displays with regard to reflections) formulates suitable measurement methods and requirements for this. Monitors are then divided into three different reflection classes.
The class I with the least reflections is suitable for general office use. Class II with less favorable reflective behavior is not suitable for all office environments. Class III, to which the glare-type displays belong, requires special, controlled ambient lighting for use.
criticism
The screen types trimmed to gloss offer a "subjectively" higher contrast impression than anti-glare type displays, since the maximum brightness increases slightly and the display is finished with a high-gloss layer. The black level remains at the same level, which is why the real contrast hardly increases. However, the reflective screen surface makes it difficult to read the monitor image without getting tired, both with changing light sources and with light sources shining at an angle from above (e.g. outdoors, in bright offices or on trains).
What shouldn't bother the ambitious computer gamer or video consumer in dimmed ambient light, but is problematic in a workplace. In normal office environments and in compliance with the applicable VDU workstation regulations, it will be difficult to find a setting for the screen in which light areas are not reflected on the surface (such as lamps, windows or light walls behind the user, light clothing, face, etc. ). Glare-type displays are generally unsuitable for professional and semi-professional image processing, since they are mostly TN panels, which have not yet been able to provide the required and practically relevant color fastness. In particular, the display of pastel tones and light gray gradients is often worse than usual. Adjusting the gradation curve in the graphics card settings can partially compensate for this.
Brand names
The glare-type displays are sold under a variety of brand or manufacturer-specific names, such as. B. BrightView, Clear Bright, Clear SuperView, Color Shine, Crystal Shine, CrystalBrite, Crystal View, SuperFine, TruBrite, TrueLife, UltraBright, UltraSharp, VibrantView, XBrite, X-black.
| Manufacturer | designation | TFT monitors with a reflective surface |
|---|---|---|
| Acer | CrystalBrite Technology | H6 series, AL 1951 ES, P193W, P193Ww, P223Ww, P223W, G24, AL 2251 WS, P194WA, P224W, P244W, P224W (older models: X192W, X193W, X222, P223WBdh) |
| Apple | Glossy display | MacBook, MacBook Air, MacBook Pro (optionally anti-glare for the 15-inch model and 17-inch model), iMac |
| AOC | Bright Glossy Panel | 2230Fh, 2230Fm, 2218Ph |
| Asus | Colo (u) r Shine / Crystal Shine Technology / Glare Type | VW192C, W3000V, W3400V |
| Belinea | no | only in notebooks |
| BenQ | Polish display | FP71V + |
| Dell | TrueLife | SP1908FP, Dell 17R, N7110 |
| Fujitsu | Crystal View / SuperFine / BrilliantView | Scaleoview D22W-1G |
| Gateway | UltraBright | in notebooks |
| HP | BrightView | USA: w1707, w1907, w2007, w2408h, w2558hc; EU: w19b, w1907v, w2007v, w2207, w2207h, w2210i, w2408, w2448hc, w2509m, w2558hc |
| Iiyama | Glare panel | ProLite X486S |
| Lenovo | VibrantView | only in Lenovo 3000, Ideapad notebooks and Thinkpad Edge notebooks, also in some SL series |
| LG | TFT-LCD active matrix glare | L245WP |
| Medion | Glare display | in notebooks |
| Samsung | MagicBright3, Glare (monitors) | Art Series: 2032GW, 2232GW, 2232GWPLUS (Attention, Superbright is available in matt and high gloss) |
| Sony | Xbrite / X-black / Clear Bright | u. a. in notebooks, also available with anti-glare versions |
| Toshiba | TruBrite / Clear SuperView | with notebooks |
Matt ads brand names
Matt ads are also advertised with special names.
| Manufacturer | Name of the matt surface | installed |
|---|---|---|
| Acer | Comfy View | in business notebooks of the Travelmate series |
| Dell | low reflection , anti- reflection , anti-glare | almost always in the Latitude, Precision and Vostro series ; in the Inspiron “Special Edition” notebook line for the Full HD version |
| Fujitsu | Non-glare, anti-glare , various anti-glare qualities (standard and premium) | preferred in business computers; for all external monitors (as of June 2012); in Celsius mobile workstations, in notebooks from the superior and advanced range (as of June 2012) |
| HP | presumably "glare-free HD display" | - |
| Lenovo | AntiGlare | for example in the Y50 Touch series (as of September 2015) |
| Samsung | Addition "matt" or "anti-reflective" | - |
| Sony | Vaio-Display Plus, ambiguous with "Vaio Display Premium" | Can be configured by the customer in the Sony Store Online |
| Toshiba | "Anti-glare high brightness screen", matt displays as an option | in Tecra notebooks; preferred in B2B devices, ultrabook models of the Z830 and Z930 series |
Web links
- Computer and office workplaces - Design guidelines (DGUV 215-410) (PDF file; 4.9 MB)
- Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA): Glare - Theoretical Background (PDF file)
Individual evidence
- ↑ see number 6.1 paragraph 4 of the annex to the workplace ordinance
- ↑ a b c d e f g h i j k l m ITespresso.de for IT pros and decision-makers: Notebook displays: glossy or matt? , Page 2
- ↑ a b c ITespresso.de for IT pros and decision-makers: Notebook displays: glossy or matt? , Page 4
- ↑ a b c ITespresso.de for IT pros and decision-makers: Notebook displays: glossy or matt? , Page 6
- ↑ a b Lenovo Y50 Touch Laptop | 15.6 "High-Performance Gaming Notebook PC. In: Lenovo. Retrieved September 11, 2015 .
- ↑ ITespresso.de for IT pros and decision-makers: Notebook displays: glossy or matt? , Page 5
- ↑ a b ITespresso.de for IT pros and decision-makers: Notebook displays: glossy or matt? , Page 3