公开(公告)号：US10091477B2

公开(公告)日：2018-10-02

申请号：US15183328

申请日：2016-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akiyoshi Yamaguchi ,  Masutaka Inoue ,  Takaaki Gyoten ,  Takaaki Abe ,  Ryoji Okubo ,  Kazuma Tani

IPC: H04N7/01 ,  H04N11/20 ,  H04N9/31 ,  G09G3/00 ,  H04N5/14

Abstract: The projection image display apparatus includes a display element that emits image light generated by modulating light from a light source based, a pixel-shifter that shifts a pixel of a projected image by changing an optical path of the image light, a resampling circuit, a motion-interpolation image processing circuit, and a pixel-shift controller. The resampling circuit generates a plurality of sub-frame image signals having a resolution of the display element, by resampling an image signal having a resolution of the projected image. The motion-interpolation image processing circuit provides a motion-interpolation image process to the sub-frame image signals. The pixel-shift controller receives the sub-frame image signals having undergone the motion-interpolation image process. The pixel-shift controller drives the display element and the pixel shifter at a given timing based on the sub-frame image having undergone the motion-interpolation image process, and then displays the projected image, which involves pixel-shift, on a screen.

公开(公告)号：US09667924B2

公开(公告)日：2017-05-30

申请号：US14854791

申请日：2015-09-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuo Mukai ,  Takahiro Takemori ,  Masutaka Inoue

IPC: H04N9/31 ,  G03B21/14 ,  G03B21/20 ,  G03B33/06 ,  G09F19/18 ,  G09F19/22 ,  G03B21/00

CPC classification number: H04N9/3141 ,  G03B21/005 ,  G03B21/145 ,  G03B21/204 ,  G03B21/2066 ,  G03B33/06 ,  G09F19/18 ,  G09F19/22 ,  G09F19/228

Abstract: A projection-type image display device includes a first housing and a second housing. The first housing houses a light source unit configured to emit light, an image generating unit configured to modulate the light from the light source unit according to a video input signal to generate image light, and a projecting unit configured to project the image light generated by the image generating unit. The second housing includes an output unit configured to output a light signal and/or an input unit configured to input a light signal which are/is exposed and arranged on a surface of the second housing.

公开(公告)号：US09823466B2

公开(公告)日：2017-11-21

申请号：US15179975

申请日：2016-06-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takaaki Abe ,  Masutaka Inoue ,  Takaaki Gyoten ,  Ryoji Okubo ,  Akiyoshi Yamaguchi ,  Kazuma Tani

IPC: G02F1/00 ,  G02B26/08 ,  H04N9/31 ,  G03B21/14 ,  G03B21/20 ,  G03B21/00

CPC classification number: G02B26/0875 ,  G03B21/008 ,  G03B21/14 ,  G03B21/204 ,  H04N9/3114 ,  H04N9/317

Abstract: The optical path changing device of the present disclosure includes an optical member having a parallel plate face for changing an optical path, and first, second, and third actuators. The first, the second, and the third actuators are connected with the optical member at first, second, and third vertices of a triangle imaginarily drawn on a plane parallel to the parallel plate face of the optical member. The first, the second, and the third actuators drive the optical member forward and backward in a normal direction of the parallel plate face at the first, the second, and the third vertices serving as points of load. The optical member has a center of gravity within the triangle when seen from the normal direction.

公开(公告)号：US09706180B2

公开(公告)日：2017-07-11

申请号：US15062114

申请日：2016-03-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Haraguchi ,  Masutaka Inoue

IPC: H04N9/31 ,  H04N9/12

CPC classification number: H04N9/3111 ,  H04N9/3152 ,  H04N9/3188

Abstract: An optical modulator element modulates incident light from a light source with an input signal. A projection lens magnifies and projects the outgoing light from the optical modulator element. A pixel shift element is disposed between the optical modulator element and the projection lens, and displaces an optical path of the outgoing light from the optical modulator element for shifting a display position of a pixel to be displayed on a screen in a given cycle between a first position and a second position away from the first position by a predetermined distance. A controller controls the pixel shift element such that the pixel shifts between the first position and the second position in either one of a first mode at a shift speed or a second mode at another second shift speed.

公开(公告)号：US09664376B2

公开(公告)日：2017-05-30

申请号：US14876361

申请日：2015-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takaaki Abe ,  Masutaka Inoue

IPC: F21V33/00 ,  H04N13/04 ,  G03B21/14 ,  G03B21/20 ,  G03B29/00 ,  H04N9/31

CPC classification number: F21V33/0052 ,  G03B21/14 ,  G03B21/204 ,  G03B29/00 ,  H04N9/31 ,  H04N9/3111 ,  H04N9/315 ,  H04N9/3161 ,  H04N9/3185 ,  H04N9/3194 ,  H04N13/359

Abstract: A projection-type image display apparatus includes a light source unit, an image generating unit that generates image light according to an input video signal, a light-guide optical system that guides the light from the light source unit to the image generating unit, a projection optical system that projects the image light generated by the image generating unit, and a controller. The controller has a display mode in which the image light is projected and an illumination mode in which the light from the light source unit is emitted as illumination light. The controller controls the optical system to focus illumination light from the projection optical system on a projection surface, in the display mode, and to focus illumination light from the projection optical system at a position different from the projection screen, in the illumination mode.

公开(公告)号：US09076389B2

公开(公告)日：2015-07-07

申请号：US14231755

申请日：2014-04-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Haraguchi ,  Masutaka Inoue

IPC: G09G3/34 ,  G09G3/00

CPC classification number: G09G3/3406 ,  G09G3/002 ,  G09G2310/0235 ,  G09G2320/043

Abstract: The projection-type image display device includes a light source unit, a color generation unit provided on the optical path of emitted light from the light source unit and configured to generate multiple colors of light from emitted light from the light source in a time-division manner by rotating at a predetermined rotation cycle, a light modulation unit, and a control unit. In accordance with a color component of the input image signal, the control unit sets current values for current to be applied to the light source unit and a polarity inversion timing for inverting the polarity of the light source unit. The control unit applies current having the current values to the light source unit while inverting the polarity according to the polarity inversion timing. The control unit shifts the polarity inversion timing according to change in the current values for current to be applied to the light source unit.

Abstract translation: 投射型图像显示装置包括：光源单元，设置在来自光源单元的发射光的光路上的颜色生成单元，其被配置为以时分方式从来自光源的发射光产生多种颜色的光 通过以预定的旋转周期旋转的方式，光调制单元和控制单元。 根据输入图像信号的颜色分量，控制单元设置要施加到光源单元的电流的电流值和用于使光源单元的极性反转的极性反转定时。 控制单元根据极性反转定时将具有电流值的电流施加到光源单元，同时反转极性。 控制单元根据要施加到光源单元的电流的当前值的变化来移动极性反转定时。