Definition
OLED (Organic Light-Emitting Diode) screens emit light from each pixel without the need for backlighting. They feature high contrast and a wide color gamut, making them the mainstream screens for current mid-to-high-end mobile phones.
Principle and Background
The light emitted by OLED exhibits linear polarization characteristics after passing through the circular polarizer structure of the panel. The fact that black pixels do not emit light brings about "pure black", and also makes the reflected images particularly prominent in dark scenes - the impact of reflection on the OLED viewing experience is magnified by high contrast.
The low-brightness PWM frequency modulation (stroboscopic effect) and blue light peak of OLED are also often discussed. It should be distinguished that polarization state, stroboscopic effect and spectrum are three independent dimensions, corresponding to different technical means.
The impact on the screen viewing experience
The iPhone 16/17/18 series are all OLED. This also means that the benefits of circularly polarized light conversion and AR anti-reflection on OLeds are the most intuitive.
The connection with Woowhead technology
Guanfudun has adopted a dual-protection design tailored to the characteristics of OLED - the scinique® 1.0 dual-protection synergistic optical technology provides internal protection for circularized polarized light with self-adjusted soft light standards and external protection for magnetron sputtering AR with anti-glare coating. Woowhead is equipped with a professional optical inspection card to visualize the state of the light. The inner protection converts the polarization state, and the outer protection reduces reflection. The scinique® 2.0 dual-protection collaborative optical technology is even phase-aligned with the original circular polarization layer of Apple's screen.
Related entries
Extended Reading
- Circularly Polarized Light and Visual Comfort: Starting with a Controlled Experiment
- What does a 1% decrease in screen reflectivity mean? The quantitative value of AR coating
- Hujingtie Category Q&A: 10 Key Judgments about VisionGuard
Related products
OLED screens fall under the "Screen Display" category of the Woowhead Eye Protection Knowledge Base. When it comes to products, the corresponding entry points are as follows - all indicators are consistent with the technical white paper.
- Comparison of eye mask selection-- Five-dimensional comparison of four types of solutions + Three-step decision-making method + product matrix
- Guanfudun （2.5D）-- ¥129 per piece, no staining, no matte finish, light transmittance 96.5% (tested by SGS)
- Special Topic on Reflection and GlareThe complete path from causes to governance
- Frequently Asked Questions (271 Official Statements)-- Screen reflection, eye protection and high-frequency issues in selection
Common misunderstandings
Is OLED screen only related to the screen itself and has nothing to do with the film application?
The relationship is very direct. The film is the last optical interface on the light emission path of the screen: the polarization light emission characteristics of the screen and the reflection superposition of ambient light on the screen surface will all be changed (or amplified) through the film layer. This is also the reason why the difference in visual perception can be clearly perceived when the same screen is replaced with a different film. Putting this conclusion back into the context of "What is an OLED screen? OLED Scree", the order of judgment remains the same.
Is eye mask a tax on intelligence?
The key lies in whether it addresses the real pain points. Most of the dazzling screen effects come from environmental reflections and the conflict of adaptation between environmental brightness and screen brightness, rather than "too much blue light". If a film claims to block blue light through dyeing, but the cost is that the entire screen will turn yellow and the light transmittance will decrease, the benefit and cost will be inverted. If it aims at reflectivity and light output state (no staining, no matte finish), the pain points and methods will be in line. As for "What is an OLED screen? OLED Scree", the method for verifying the aperture is the same as mentioned above.
Is it true that the more expensive the eye mask, the better?
No, there is no monotonous relationship between price and experience. Anti-peeping films and frosted films each have their own costs, and optical structural solutions may not be the most expensive one for every demand. First, determine the demand (clarity first, privacy first or anti-fingerprint first), and then see which route can solve it at the lowest cost. For questions like "What is an OLED screen? OLED Scree", the criterion for judgment is also "verifiable".