Drawing apparatus and drawing method

Patent metadata

Field	Value
Publication number	US-2018137797-A1
Application number	US-201815868238-A
Country	US
Kind code	A1
Filing date	Jan 11, 2018
Priority date	Sep 3, 2015
Publication date	May 17, 2018
Grant date	—

Abstract

A drawing apparatus includes a laser light source unit configured to output laser light; a scanning mirror unit configured to reflect and scan the laser light; a drawing control unit configured to control an output value of the laser light of the laser light source unit based on display image data so that a display image is drawn by the laser light in a range scanned by the scanning mirror unit; and an output adjustment control unit configured to control the laser light source unit so that characteristic detection laser light for adjusting the output value is output outside a range in which the display image is drawn inside the range scanned by the scanning mirror unit. The output adjustment control unit controls the characteristic detection laser light to be output based on a display color at an end part of the display image.

First claim

What is claimed is:

1 . A drawing apparatus comprising:
a laser light source unit configured to output laser light; a scanning mirror unit configured to reflect and scan the laser light; a drawing control unit configured to control an output value of the laser light of the laser light source unit based on display image data so that a display image is drawn by the laser light in a range scanned by the scanning mirror unit; and an output adjustment control unit configured to control the laser light source unit so that characteristic detection laser light for adjusting the output value is output outside a range in which the display image is drawn inside the range scanned by the scanning mirror unit, wherein the output adjustment control unit controls the characteristic detection laser light to be output based on a display color at an end part of the display image.

2 . The drawing apparatus according to claim 1 , wherein the output adjustment control unit controls the characteristic detection laser light that is the same color as or a color similar to the display color to be output continuously from the end part of the display image.

3 . The drawing apparatus according to claim 1 , wherein the output adjustment control unit controls the characteristic detection laser light that is the same color as or a color similar to the display color to be output in the vicinity of the end part of the display image.

4 . The drawing apparatus according to claim 1 , wherein the output adjustment control unit controls the characteristic detection laser light to be output repeatedly in a plurality of rows or a plurality of columns.

5 . A drawing method comprising:
inputting display image data; controlling an output value of laser light based on the display image data and drawing a display image by the laser light; and outputting characteristic detection laser light for adjusting the output value outside a range of the drawing, wherein in the outputting of the characteristic detection laser light includes outputting the characteristic detection laser light based on a display color at an end part of the display image.

Assignees

• Jvc Kenwood Corp

Inventors

• Ohara Tatsuya

Classifications

• G09G2310/0232

  Special driving of display border areas · CPC title

• H04N9/3194

  including sensor feedback · CPC title

• H04N9/3129

  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 title

• G02B26/101

  with both horizontal and vertical deflecting means, e.g. raster or XY scanners (colour television using laser beams scanning a display screen H04N9/3129) · CPC title

• H04N9/3155

  for controlling the light source (light source control per se H05B35/00 – H05B47/00; control of an illumination source for displays in general G09G3/3406) · CPC title