Agc Inc.

Kabushiki Kaisha Topcon

Asahi Glass Company, Limited

Jun Akiyama

Kento Sakurai

Takeshi Nakamura

Kazutaka Ono

Yoshiyuki Hatano

Ikuo Kitao

Toshihiro Iwai

Shinya Tahara

Shinji Uno

Hisao Fujinuma

Daisuke Uchida

Hirofumi Tokunaga

Takashi Sato

Yasuo Suzuki

Masayuki Hayashi

Yasumasa Kato

Reo Usui

Kenichi Ebata

Yohei Kawai

Takatoshi Yaoita

Shunji Inoue

Hikaru Ishida

Tetsushi Takiguchi

Taketoshi Taniguchi

A glass sheet composite includes: two or more sheets; and an intermediate layer between at least a pair of the sheets. At least one of the pair of sheets is a glass sheet. The intermediate layer satisfies all of the following properties: (1) the intermediate layer has a thickness of 20 μm or less, (2) a compressive shear storage modulus at a temperature of 25° C. is 1.0×10Pa or less, and (3) at the temperature of 25° C. and 1 Hz, the compressive shear storage modulus is higher than a compressive shear loss modulus. The glass sheet composite has a loss coefficient at 25° C. of 0.01 or more, and a sheet-thickness-direction longitudinal wave acoustic velocity of 4.0×10m/s or more.

Glass plate structure, diaphragm, and opening member

A sound insulation device includes: a glass sheet composite including a plurality of glass plates being laminated, and partitioning an interior space and an exterior space; a vibration output unit vibrating the glass sheet composite according to an input signal; an exterior sound detection unit detecting a sound from a noise source or a vibration source and outputting a reference signal according to a detection result, the sound being correlated with a sound wave vibration induced in the glass sheet composite; an interior sound detection unit detecting a sound in the interior space and outputting an error signal according to a detection result; and a control unit including an adaptive filter that generates a cancel signal having a phase opposite to a phase of the reference signal to minimize the error signal, and outputting the cancel signal from the adaptive filter to the vibration output unit.

Sound shielding device

A glass sheet composite having two or more glass sheets and a liquid layer between at least a pair of glass sheets out of the glass sheets, wherein a thickness of the liquid layer is 1/10 or less of a total thickness of the pair of glass sheets when a total thickness of the pair of glass sheets is 1 mm or less, and 100 μm or less when the total thickness of the pair of glass sheets is more than 1 mm.

Glass sheet composite

A vibration device includes: a glass diaphragm; an exciter which is fixed to the glass diaphragm and vibrates the glass diaphragm; an enclosing member which defines an internal space by enclosing a portion, including a fixing position of the exciter, of the glass diaphragm, one end portion of the glass diaphragm being exposed to outside the internal space through an opening of the internal space; and a shielding member for acoustic shielding between the opening and the glass diaphragm, the shielding member dividing the glass diaphragm into an excitation region located inside the internal space and a vibration region located outside the internal space.

Vibration device

A vibration device includes a plate-like glass vibrator and a plurality of exciters that are attached to the glass vibrator and configured to generate vibration according to an input electrical signal. An aspect ratio La/Lb of a length La of a longer side to a length Lb of a shorter side of a rectangle in which the glass vibrator is inscribed is 1.2 to 50. Provided that the number of the exciters is n and a minimum value of distance between the exciters is S, a relational value α (α=S−1)/La) is 0.2 to 0.8. In the case where the number n of exciters is 3 or larger, a value β(β=Sσ/S) obtained by dividing a standard deviation Sσ of distances by an average Sof the distances between the exciters is 0 to 0.5.

Vibration device for generating acoustic performance

The purpose of the present invention is to provide a glass sheet composite having satisfactory acoustic performance. The present invention relates to a glass sheet composite including a diaphragm that is vibrated by a vibrator, and a support member that is attached along an edge portion of the diaphragm to support the diaphragm, in which the diaphragm includes at least one glass sheet, and is supported on the support member through a fixing part that fixes the edge portion of the diaphragm to the support member, and a vibration-permitting part that permits vibration of the diaphragm.

A carrier substrate to be used, when manufacturing a member for an electronic device on a surface of a substrate, by being bonded to the substrate, includes at least a first glass substrate. The first glass substrate has a compaction described below of 80 ppm or less. Compaction is a shrinkage in a case of subjecting the first glass substrate to a temperature raising from a room temperature at 100&#xb0; C./hour and to a heat treatment at 600&#xb0; C. for 80 minutes, and then to a cooling to the room temperature at 100&#xb0; C./hour.

Carrier substrate, laminate, and method for manufacturing electronic device

The present invention is a glass sheet composite in which the loss coefficient is 1&#xd7;10or more and the longitudinal wave acoustic velocity in the sheet thickness direction is 5.5&#xd7;10m/s or more.

A glass sheet composite includes a first glass sheet, a second sheet disposed opposite the first glass sheet, and a liquid layer formed by sealing up a liquid between the first glass sheet and the second sheet, in which the glass sheet composite has a plurality of vibration areas that are independent of each other in a plan view. The glass sheet composite is a diaphragm including at least one vibrator disposed on one side or both sides of the glass sheet composite. The glass sheet composite enables independent vibration at each of the vibration areas, and enables not only stereophonic or multiphonic reproduction but also local reproduction to be performed along with images. Since the diaphragm includes a vibrator, this diaphragm is excellent in sound reproduction.

Glass sheet composite, and diaphragm

The present invention provides a display device and a television device with which it is possible to reduce the thickness of the device profile while also realizing desirable acoustic characteristics. This display device includes: a first plate-shaped object; a display module including a display element and a second plate-shaped object that supports the display element, the display module being disposed so as to face the first plate-shaped object; a liquid layer formed by sealing up a liquid between the first plate-like object and the display module; and a vibrator provided to the first plate-shaped object and/or the display module. The loss coefficient of the display device at 25&#xb0; C. is 1&#xd7;10or greater and a thickness ratio between the first plate-shaped object and the display module is from 1:10 to 10:1.

Display device and television device

The glass sheet composite of the present invention includes at least two sheets, a liquid layer held between two adjacent sheets of the at least two sheets, and a seal material disposed between the two sheets so as to seal up the liquid layer, in which at least one of the two sheets is a glass sheet, the glass sheet composite including a light-shielding part disposed so as to overlay a boundary between the liquid layer and the seal material when the glass sheet composite is viewed in a plan view. Because of this, the boundary can be concealed, and this not only results in an improvement in designability and a wider choice of materials for the liquid layer and the seal material.

The speaker device () includes a diaphragm (), an exciter () which vibrates in response to an input electrical signal, and a vibration-transmitter () which is connected to both the diaphragm () and the exciter () and transmits the vibration of the exciter () to the diaphragm (), in which the diaphragm () has a loss coefficient at 25&#xb0; C. of 1&#xd7;10or higher and the vibration-transmitter () has a specific elastic modulus of 20 mm/sor higher.

Speaker device

A glass sheet composite includes at least two sheets and a liquid layer held between the two sheets, and at least one of the two sheets being a glass sheet. In the glass sheet composite, the two sheets have been disposed so that an edge surface of one of the two sheets and an edge surface of the other sheet are not flush with each other to constitute a step portion having a stair-like shape in a cross-sectional view, and the glass sheet composite further comprising a seal material provided to the step portion to seal up at least the liquid layer.

The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600&#xb0; C. at 100&#xb0; C./hour, holding the glass substrate at 600&#xb0; C. for 80 minutes, and lowering the temperature from 600&#xb0; C. to normal temperature at 100&#xb0; C./hour.

Alkali-free glass substrate and method for manufacturing alkali-free glass substrate

A glass sheet composite includes a first glass sheet; a second glass sheet; and a liquid layer sandwiched between the first glass sheet and the second glass sheet. The glass sheet composite has a loss coefficient greater than or equal to 1&#xd7;10at 25&#xb0; C., and an acoustic velocity of longitudinal wave greater than or equal to 5.0&#xd7;10m/s in a sheet thickness direction at 25&#xb0; C. The liquid layer has a viscous coefficient of 1&#xd7;10-1&#xd7;10Pa&#xb7;s at 25&#xb0; C., and a surface tension of 15-80 mN/m at 25&#xb0; C. The liquid layer contains particles whose mean particle diameter is 0.3-1 &#x3bc;m.

Growing community of inventors

Tokyo, Japan

Jun Akiyama