Toray Industries, Inc.

Tetsuo Yamashita

Harushi Nonaka

Hiroyuki Sasaki

Hideyuki Kojima

Jun Tsukamoto

Masahiro Yoshioka

Shigetaka Kasai

Ikumi Hada

Eiichiro Tamaki

Tomoyuki Yuba

Yasuo Kubota

Tetsuya Goto

Natsuko Chayama

Toshiyuki Nonaka

Ikumi Takiguchi

The present invention provides a negative electrode material for a lithium ion secondary battery, a composite negative electrode material for a lithium ion secondary battery, a resin composition for a lithium ion secondary battery negative electrode, and a negative electrode for a lithium ion secondary electrode, which may provide high charge/discharge capacity, and excellent initial charge-discharge characteristics and capacity retention. The surfaces of core particles of silicon of 5 nm or more and 100 nm or less in average particle size are coated with a coating layer to use a negative electrode material containing substantially no silicon oxide in the coating layer, or a composite negative electrode material for a lithium ion secondary battery, which includes the negative electrode material and a matrix material, further with the use of a polyimide resin or a precursor thereof as a bonding resin, thereby making it possible to achieve high charge/discharge capacity and excellent capacity retention, as well as high initial efficiency.

Negative electrode material for lithium ion secondary battery, composite negative electrode material for lithium ion secondary battery, resin composition for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery

The present invention provides a color filter comprising a transmission area and reflection area in which at least one color pixel of red, green and blue pixels is formed of the same material, wherein a transparent area having no color layer is formed in a part of the reflection area, at least one sub-area is formed in the transparent area, and the size of the sub-area is 20 &#x3bc;m or more and 2,000 &#x3bc;m or less. The present invention also provides a liquid crystal display for both transmission display and reflection display with a cheap manufacturing cost, wherein the difference of chromaticity between the transmission display and reflection display is small, and the surface of the transmission area and reflection area have small step heights.

Color filter and liquid crystal display device

The present invention provides a low-cost transflective liquid crystal display exhibiting high color reproducibility in a transmissive display and excellent characteristics (color reproducibility and brightness) in a reflective display. Also, the present invention provides a color filter for a bright transflective liquid crystal display. The transflective liquid crystal display includes a pair of substrates disposed opposite to each other with a liquid crystal layer held therebetween, a reflection means using ambient light as a light source, and a backlight source. The transflective liquid crystal display further includes a color filter having a transmissive region and a reflective region which are provided in each picture element of the color filter and which have colored layers comprising a single material, and a three-peak type LED backlight source.

Color filter for liquid crystal display and semitransmission liquid crystal display

Disclosed is a method for fabricating a color filter for a transflective liquid crystal display device inexpensively in which desired color purities, brightnesses, and color tones are obtained for reflective display and transmissive display. A color filter for a liquid crystal display device includes pixels of a plurality of colors, each pixel of at least one color including a transmissive area and a reflective area. The pixel of at least one color includes a plurality of laminated color layers. The uppermost color layer in the pixel including the plurality of laminated color layers is composed of a photosensitive color resist. In the reflective area of the pixel including the plurality of laminated color layers, a transparent resin layer is disposed between a substrate and the color layer portion.

Color filter, liquid crystal display device, and method for making color filter

By preparing a color filter including blue dots whose chromaticity coordinates (z, Z) in the XYZ colorimetric system, measured with CIE standard light source C, satisfy the relational expressions 114&#x3e;Z&#x3e;&#x2212;1087023z+3205105z&#x2212;3545958z+1744329z&#x2212;321773 and 0.73&#x2266;z&#x2266;0.81, a color filter exhibiting an excellent color reproducibility and a high transmittance can be realized and thus a liquid crystal display device capable of displaying as colorful images as in CRT television sets can be achieved.

Growing community of inventors

Kyoto, Japan

Tetsuo Yamashita