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：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。