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Laser projection equipment and correction method of projected image thereof

A technology of laser projection and projected image, applied in the field of projection display, can solve problems such as poor display effect of projected image, and achieve the effect of ensuring display effect and improving flexibility

Active Publication Date: 2022-05-27
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present disclosure provide a laser projection device and a method for correcting its projected image, which can solve the problem in the related art that the projected image displayed by the laser projection device may exceed the projection screen, resulting in a poor display effect of the displayed projected image.

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  • Laser projection equipment and correction method of projected image thereof
  • Laser projection equipment and correction method of projected image thereof
  • Laser projection equipment and correction method of projected image thereof

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0030] figure 1 It is a schematic structural diagram of a laser projection device provided by an embodiment of the present disclosure. figure 2 It is a schematic structural diagram of another laser projection device provided by an embodiment of the present disclosure. like figure 1 and figure 2 As shown, the laser projection apparatus may include a casing 00 , and a control circuit 10 , a light valve 20 and a projection lens 30 located in the casing 00 . Optionally, the light valve 30 may be a digital micro-mirror device (DMD). The control circuit 10 may be a digital light processor (digital light processing, DLP).

[0031] The control circuit 10 is connected to the light valve 20, and the control circuit 10 is used for responding to...

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Abstract

The invention discloses laser projection equipment and a correction method of a projected image thereof, and belongs to the field of projection display. The control circuit in the laser projection equipment can correct the projection position of at least one pixel area in the projection image according to the adjustment position of the target mark point in the correction image displayed on the projection screen, so that the projection position of the projection image is prevented from exceeding the projection screen, and the display effect of the projection image is ensured. Meanwhile, the control circuit only corrects the projection position of at least one pixel area in the projection image, so that the adjustment of the projection position of the projection image is more targeted, and the flexibility of the adjustment of the projection position of the projection image is improved.

Description

technical field [0001] The present disclosure relates to the field of projection display, and in particular, to a laser projection device and a method for correcting projection images thereof. Background technique [0002] At present, laser projection equipment may include a main control circuit, a light valve and a projection lens. The main control circuit is used for transmitting the light valve control signal to the light valve. The light valve is used to modulate the light beam irradiated on its surface into an image light beam under the control of the light valve control signal, and transmit the image light beam to the projection lens. The projection lens is used for transmitting the image beam to the projection screen, so as to project and display the projection image on the projection screen. [0003] However, if the user accidentally moves the laser projection device, the projected image projected and displayed by the laser projection device may exceed the projecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3179H04N9/3185H04N9/3161
Inventor 矫风
Owner QINGDAO HISENSE LASER DISPLAY CO LTD