Quantum dot enhancement film
Quantum dot: the technology platform for future displays by
According to DSCC’s latest Annual Quantum Dot Display Technology and Market Outlook Report, which was published this week and is now available to subscribers, shipments of quantum dot-based panels are projected to rise from 3 million in 2018 to 31 million in 2025, reflecting a compounded annual growth rate of 40%. This report is the first of its kind, providing technical and market details on a variety of QD architectures for display applications, including QDEF, QDOG, QD OLED, QNED, and EL QDs.
Premium displays, which are powered by broad color gamut and high dynamic range requirements, reflect a growing market for QD-based displays. The UHD Alliance, for example, requires material to be mastered in and encoded in the BT.2020 gamut with 10-bit depth, as well as displays to be able to process the content, but the minimum for display color reproduction was set at 90% of DCI-P3. DCI-P3, which is 26% larger than sRGB / Rec.709, is used in UHD TVs and is increasingly being adopted in many other display applications that need a broad color gamut. BT.2020/ Rec.2020 is 72% larger than sRGB/ Rec.709 and 37% larger than DCI-P3. Premium displays are being developed to push the DCI-P3 envelope even further and improve Rec.2020 coverage. To achieve UHD Premium Certification, HDR criteria for UHD standards include either 1000 nits peak brightness with less than 0.05 nits black level or more than 540 nits peak brightness with less than 0.0005 nits black level. Premium QLED TVs have a peak brightness of over 2000 nits.
Hisense h9g movie settings in hdr and sdr
A multi-primary-color (MPC) quantum-dot down-converting film is proposed and manufactured (QDDCF). Five rounds of photolithographic processes were used to create a four-primary-color QDDCF with red (R), yellowish green (YG), bluish green (BG), and blue (B) subpixels. A verification platform was developed using a laser projector, and the calculated results show that the QD film will increase the display color gamut to 118.60 percent of Rec. 2020 and cover the entire gamut of the Pointer. The effects of blue light absorption and film thickness are thoroughly examined. A possible strategy for achieving ultra large color gamut for new display technologies is to combine MPC technology and QDDCF.
3.2 post Pixel alignment and the photolithographic mechanism For the R, YG, BG, B, and BM subpixels, five separate photomasks were made. Figures 2(a)–2(b) display the photomasks for the BM and red subpixels (c). At four corners of each photomask, orientation signs were used to prepare it. A single pixel measures 265 m 265 m and a subpixel measures 115 m 115 m, respectively, and is designed for large-screen TV displays. Adjacent pixels/subpixels are divided by 50 m / 35 m, respectively. Each subpixel can be independently excited and regulated. Figure 2 shows the transmittance range of BM with a 2-m film thickness (d). The BM is used to describe the orientation signs and avoid color crosstalk. Using the fine adjustment knob under the objective lens shown in Fig. 2, align the alignment signs on the subpixel photomask with the alignment signs on the glass substrate during each round of exposure (e). Precision alignment and pattern can be ensured as a result of this. Photomasks for (a) BM and (b) red subpixels are shown in Figure 2. (c) One of the orientation signs in the photomask’s upper right corner. (d) BM’s transmittance continuum (Inset: the fabricated BM pattern under microscope). e) URE-2000/35 photolithographic computer Full-Size Download
3m – display week 2013 – best in show award
Quantum dot films that emit light, quantum dot lighting systems, and quantum dot-based backlight units are all available. There are also descriptions of related compositions, elements, and methods. Encapsulation and matrix technologies for quantum dots have been improved. The use of protective barriers in quantum dot films is defined. Quantum dot-based lighting devices with high performance, brightness, and color purity, as well as methods for enhancing efficiency and optical characteristics in quantum dot-based lighting devices, are also covered.
This application claims the advantage of U.S. Provisional Application No. 61/412,004, filed Nov. 10, 2010, and is a continuation-in-part of U.S. Non-provisional Application Ser. No. 12/318,516 (now U.S. Pat. No. 8,343,575), both of which are incorporated herein by reference in their entirety.
Traditional lighting systems have low lighting quality and minimal light color characteristics. Cost-effective lighting methods and devices with high color purity, performance, and improved light color characteristics are needed.
The market and technology dynamics of film-type QDs are currently characterized by several main trends (or QDEFs). Two main developments will be discussed below: moving away from Cd-based systems and lowering implementation costs. The European Union has officially declared a cadmium (Cd) ban for October 2019. Cd QDs had only existed as a temporary solution, a technology on borrowed time, long before this announcement. As a result, the industry has been focusing on InP-based QDs as a substitute for Cd-based QDs. The output gap between Cd and InP QD technologies was enormous in the early days. However, the quantum yield (QY) discrepancy has almost vanished, and the FWHM distance has also shrunk significantly (note: QY affects efficiency and FWHM affects colour gamut). The FWHM distance, on the other hand, remains, with InP QDs currently achieving a commercial FWHM of around 40nm. Commercially, getting it down to 38nm (or even 35nm in the lab) remains a challenge. This is because the emission bandwidth is determined by the shape and crystalline structure of the particles, as well as the regulation of the monodispersity of the QDs during synthesis. Despite the market’s continued output gap, the transformation appears to be nearly full. This can be seen in the graph below: in 2002, Cd-based QDs had a market share of approximately. However, according to our report, we expect it to drop to 20% in 2018.