PROJECTION DISPLAY APPARATUS AND DISPLAY SYSTEM

• US 20110279456A1
• Filed: 03/18/2011
• Published: 11/17/2011
• Est. Priority Date: 09/19/2008
• Status: Abandoned Application

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: HARAGUCHI, Masahiro, HIRANUMA, Yoshinao, INOUE, Masutaka, ABE, Takaaki
• Application Number:
  US13/051,381
• Publication Number:
  US 20110279456A1
• Time in Patent Office: Days
• US Class Current: 345/428
• CPC Class Codes: G03B 21/005 Projectors using an electronic spatial light modulator but not peculiar thereto
• CPC Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066
• CPC Class Codes: G09G 2320/02 Improving the quality of display appearance
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: H04N 9/3129 scanning a light beam on the display screen scanning a light beam on a screen in displays other than projection devices G09G3/02; scanning systems in general G02B26/10; projectors using laser light sources in general H04N9/3161
• CPC Class Codes: H04N 9/3185 Geometric adjustment, e.g. keystone or convergence optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14

Abstract

A projection display apparatus is provided with a main body unit comprised of a light source and a projection element for projecting light emitted from the light source to a projection plane. The projection element is provided in the main body unit. The main body unit is further comprised of an adjusting member exclusively used for the operation of an image adjustment function to adjust an image on the projection plane, wherein the image is composed of the light emitted from the projection element.

Claims

1. A projection display apparatus comprising:

a main body unit including a light source and a projection element which projects light emitted from the light source to a projection plane, wherein

the projection element is provided inside the main body unit, and

the main body unit further includes an adjusting member used exclusively for operation of an image adjustment function to adjust an image on the projection plane, the image being formed by the light emitted from the projection element.

2. The projection display apparatus according to claim 1, further comprising:

a supporting member which supports the main body unit rotatably around a plurality of axes; and

a fixing member which fixes the main body unit and the supporting member to installation sites.

3. The projection display apparatus according to claim 1, further comprising:

an image processor which controls the image adjustment function based on an adjustment signal inputted from the adjusting member, wherein

the image projected onto the projection plane includes a plurality of pixels each having coordinates determined by a row in the horizontal direction and a column in the vertical direction, and

the image processor changes the number of pixels in the horizontal direction and the number of pixels in the vertical direction by converting an image signal inputted from an external device.

4. The projection display apparatus according to claim 1, further comprising:

an image processor which controls the image adjustment function based on an adjustment signal inputted from the adjusting member, wherein

the image projected onto the projection plane including a plurality of pixels each having coordinates determined by a row in the horizontal direction in the column in the vertical direction,

the image processor outputs, as a request to convert the image signal, the adjustment signal inputted from the adjusting member, to an external device,

the image processor acquires the converted image signal from the external device, and

the converted image signal is a signal obtained by changing the number of pixels in the horizontal direction and the number of pixels in the vertical direction.

5. The projection display apparatus according to claim 1, further comprising:

an image processor which controls the image adjustment function based on an adjustment signal inputted from the adjusting member, wherein

the light source is a solid light source,

the projection element scans the projection plane in a predetermined scanning direction for each of a plurality of pixels each having coordinates determined by a row in the horizontal direction and a column in the vertical direction, and

the image processor controls a scan angle for the projection element in the predetermined scanning direction.

6. The projection display apparatus according to claim 1, further comprising:

a storage unit which stores projection angles at which the projection element projects the light onto the projection plane and a plurality of correction shapes in association with each other, the plurality of correction shapes obtained by deforming a predetermined reference shape according to the projection angles; and

an image processor which controls the light source and the projection element so that at least two or more of the plurality of correction shapes are formed on the projection plane as an image formed by the light projected onto the projection plane.

7. The projection display apparatus according to claim 1, further comprising:

an image processor which controls the light source and the projection element so that an image is formed with the light projected onto the projection plane, wherein

the image processor controls the light source and the projection element so that a vertical guide line and a horizontal guide line are formed on the projection plane as a start-up image when the projection display apparatus is started, the vertical guide line forming a vertical line when processing of the image adjustment function is completed and the horizontal guide line forming a horizontal line when processing of the image adjustment function is completed.

8. A display system comprising at least a projection display apparatus including a light source and a projection element which projects light emitted from the light source to a projection plane, the display system further comprising an adjusting member used for operation of an image adjustment function to adjust an image on the projection plane, the image being formed by the light emitted from the projection element, wherein

the projection element is provided in the projection display apparatus.