STELLA NEWS SITE is managed by Stella Corporation Inc.

FPD/PCB NEWS`May 29


Canon develops perovskite quantum-dot inks for use in next-generation displays

Canon announced to develop a quantum-dot ink with a perovskite structure (perovskite quantum-dot ink) as a material for next-generation quantum-dot displays, and successfully demonstrate its practical durability for the first time in the world.

Perovskite quantum dots are considered an effective Cd-free approach other than InP (indium phosphide) quantum dots. In terms of color purity and light efficiency, many see perovskite quantum-dots as a promising material capable of contributing to high brightness, a wide color gamut and high resolution. However, poor durability has thus far been a barrier to practical use.

To address the issue of durability, Canon is leveraging its proprietary technologies nurtured through development of ink and toner for printers. The company has established a unique method to form a protective shell on quantum dots, thereby achieving practically durable perovskite-dot ink with retained color purity and light usage efficiency.

InP quantum-dot ink covers 88% of the color gamut based on the ITU-R BT. 2020 recommendation, while Canon's perovskite quantum-dot inks can cover 94% of the gamut.In addition, the high efficiency of light use is expected to reduce power consumption of quantum dots by approximately 20% compared to conventional technology.

FPD/PCB NEWS`May 23


DNP Newly Designed LCD Backlight System Components Achieve Both High Luminance and Wide Viewing Angle

Dai Nippon Printing (DNP) announced to newly design the system components used with Liquid Crystal Display (LCD) module backlights, such as those used in notebook PC. Compared with the design of currently available standard components, the newly designed system components are not only thin, but also achieve high luminance and wide viewing angles.

These components are mainly composed of a Light Guide Plate (LGP), a reflector, and a prism that refracts light. DNP has improved brightness by adjusting the prism arrangement (the convex portion of the triangle) so that it is turned against the standard and faces the light emitting surface of the LGP.

Also, in answer to the challenge of narrow viewing angles due to the positioning of the prism, DNP improved light utilization efficiency by devising an LGP and a reflector. DNP then achieved both high luminance and a wide viewing angle by optimizing the prism shape design. Offering these newly designed system components makes it possible to both cut parts numbers and reduce power consumption, as well as contribute to reducing the environmental burden via lower CO2 emissions.


£Comparison of luminance and viewing angle between note PC integrating newly designed system components (above), and currently available note PC (below).

FPD/PCB NEWS`May 22


DNP to Exhibit at SID Display Week 2023

Dai Nippon Printing (DNP) and DNP Group company, DNP America announced to exhibit at the world's largest display conference, SID Display Week 2023, to be held at the Los Angeles Convention Center in California, U.S.A. DNP Group will have a booth for the 9th consecutive year.

FPD/PCB NEWS`May 19


AGC Decides to discontinue production of LCD glass substrate products at Kansai Plant

AGC announced to discontinue the production of LCD glass substrate products at the Kansai plant (Takasago Factory), located in Hyogo prefecture, Japan, by the end of 2023.

By the way, production of other products at the Takasago Factory will continue.

FPD/PCB NEWS`May 16


FUJIFILM to Build a New Factory for Cutting-Edge Semiconductor Materials in Taiwan

FUJIFILM announced to build a new factory for cutting-edge semiconductor materials in Taiwan in order to further expand its electronic materials business. The company's Taiwan-based semiconductor materials subsidiary, FUJIFILM Electronic Materials Taiwan will acquire land in Hsinchu City and build a new factory for producing CMP slurries and photolithography-related materials, due to go operational in the spring of 2026.

The existing factory, the Third Taiwan Factory, in Tainan City will also be expanded to include CMP slurry manufacturing capability in the new building under construction, which is due to commence operation in the spring of 2024. The total amount of capital investment, combining the construction of the new factory and facility reinforcement of the existing factory, comes to approximately 15 billion yen.

FPD/PCB NEWS`May 15


ENEOS Holdings and JX Nippon Mining & Metals prepared for listing of sares of JX Nippon Mining & Metals on the Tokyo Stock Exchange

ENEOS Holdings and JX Nippon Mining & Metals (JXNMM) announced to commence preparation for the listing of shares of JXNMM. The timing of the listing and the market on which the shares will be listed are not determined at present.

FPD/PCB NEWS`May 10


Mitsubishi Electric ME Innovation Fund invests in Elephantech

Mitsubishi Electric announced that its ME Innovation Fund, has invested in Elephantech. The startup is the first company in the world to successfully mass-produce printed circuit boards using metal inkjet printing. This is the fund's fourth investment in a target company.