Japan Display Inc.

Sony Corporation

Other

Osamu Ishige

Koji Noguchi

Koji Ishizaki

Hiroshi Ikeda

Chihiro Tanaka

Masumitsu Ino

Yoji Oki

Naosuke Furutani

Nobuyuki Shigeno

Shuichi Tatemori

Ying Bao Yang

Harumi Okuno

Kiyoshi Fukusaka

Rie Sakuragi

A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.

Display device with touch detection function, and electronic unit

A display device with a touch detection function including: a plurality of liquid crystal display elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.

An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.

Display device

A display device with a touch detection function includes: a plurality of liquid crystal display elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.

A liquid crystal display apparatus, includes a liquid crystal panel including a first substrate, a second substrate disposed in an opposing relationship to the first substrate with a space left, and a liquid crystal layer provided in the space between the first and second substrates, the liquid crystal panel including a pixel region in which a plurality of pixels are provided on the faces of the first and second substrates which oppose to each other such that illuminating light irradiated from the first substrate side upon the second substrate side is transmitted through the pixel region to display an image, and the liquid crystal panel further including a light scattering layer provided on the face of the first substrate on which the illuminating light is illuminated and configured to scatter and transmit the light.

Liquid crystal display apparatus

A liquid crystal panel including a driving substrate and a counter substrate, the two substrates having a liquid crystal layer interposed therebetween. The driving substrate has pixel electrodes and transistors connected to the pixel electrodes on a surface thereof, which are covered with an alignment film. The counter substrate is provided adjacent to the alignment film of the driving substrate. The alignment film is rubbed in a direction substantially parallel to signal lines or scanning lines connected to the transistors. Each of the pixels has a projection at a substantially central position in a direction perpendicular to the rubbing direction.

Liquid crystal panel

A thermally developable photographic material containing a support, provided thereon: (i) a photosensitive layer containing photosensitive silver halide particles, and (ii) a layer containing at least one represented by formula below on one or both surfaces of the support 

Squalirium compound, thermally developable photographic material containing said compound, and image forming method thereof

A reflection type display having a front light comprises a light guide plate having a light incident portion to which the lights are introduced, a planar surface arranged on the surface facing said first substrate and a prismatic surface arranged on the other surface, said prismatic surface comprising pseudo-planar surfaces which are formed at an angle of approximately 0.5 to 3.5 degrees with said planar surface and are raised greater as being distanced away from said light incident portion and slanted surfaces which are formed at an angle of approximately 40 to 60 degrees with said planar surface and are descended greater as being distanced away from said light incident portion, said pseudo-planar surfaces and said slanted surfaces are arranged alternately to form multiple prisms.

Reflection type display with front light

The orientation of a reflection type liquid crystal display device is improved to widen the field angle. A panel is provided with a transparent first substrate located on the external light incident side, a second substrate located on the opposite side bonded to the first substrate with interposition of a predetermined space, a twist-oriented nematic liquid crystal layer supported in the space between both substrates, and electrodes for applying a voltage to the nematic liquid crystal layer formed on both substrates. The nematic liquid crystal layer remains in twist orientation and functions as a quarter wavelength layer to allow the external light to pass in cooperation with the deflection plate and the quarter wavelength plate for displaying white while no voltage is applied. On the other hands the nematic liquid crystal layer is converted to perpendicular orientation and loses the function of a quarter wavelength layer not to allow the external light to pass for displaying black. The orientation direction 3U of nematic liquid crystal molecules which are in contact with the first substrate is prescribed in a range of 168.5.+-.10 degrees with respect to the upward direction of the screen of the panel, and the orientation direction 3L of nematic liquid crystal molecules which are in contact with the second substrate is prescribed in a range of 51.5.+-.10 degrees.

Growing community of inventors

Aichi, Japan

Osamu Ishige