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Glasses display device

A display device and glasses-type technology, applied in optical components, optics, instruments, etc., can solve problems such as difficulty in eliminating chromatic aberration, difficulty in mass production of holographic optical components, and restrictions on popularization and application, and achieve low processing difficulty, production cost and reliability. Guaranteed, large exit pupil size effect

Inactive Publication Date: 2011-11-30
SHENZHEN ACAD OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In US patent US 09 / 801,405 (publication number US 2001 / 0033401A1) and US 6,169,613, the method of holographic optical device and light transmission plate is adopted, so that the whole glasses-type display device can be thinned and lightened, but the holographic optical element is difficult to batch, And its chromatic aberration is difficult to eliminate, these shortcomings limit the popularization and application of this scheme

Method used

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Embodiment Construction

[0022] In a preferred embodiment of the present invention, the structure of the glasses-type display device is as follows figure 1 and figure 2 shown. exist figure 1 Shown in is the overall structure of the optical lens group 2, figure 2 Then it shows that the optical lens group 2 is specifically composed of four lenses. Wherein, the distance between the micro display chip 1 and the first lens 21 can be 3 mm to 10 mm, which is 5 mm in this embodiment; the total length between the micro display chip and the fourth lens 24 is less than 50 mm, which is 49 mm in this embodiment ; The distance between the observation position of the human eye 4 and the light-transmitting plate 3 is 10 mm to 25 mm, which is 15 mm in this embodiment. The thickness of the light-conducting plate is 3mm, and can be further reduced to 2mm. The exit pupil size of the glasses-type display device is 15 mm×8 mm, and the half field of view is 15 degrees×9 degrees.

[0023] Wherein, the light conductin...

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Abstract

A glasses-type display device, comprising a microdisplay chip (1), an optical lens group (2) for enlarging an image generated by the microdisplay chip (1), and transmitting light output by the optical lens group (2) to the eyes A light-conducting flat plate (3); the light-conducting flat plate is perpendicular to the observation axis of the eyes, and the included angle between the axis of the optical lens group and the observation axis of the eyes is 45-65 degrees.

Description

technical field [0001] The invention relates to an optical imaging system, in particular to a glasses-type display device with a larger field of view and a larger exit pupil size. Background technique [0002] The function of the glasses-type display device is to magnify the image generated by the micro-display chip (such as LCD, LCOS or OLED) into a virtual image for human eyes to observe, in which LCD (Liquid Crystal Display) is a liquid crystal display, OLED (Organic Light Emitting Diode) is an organic light-emitting diode, and LCOS (Liguid Crystal on Silicon) is a reflective liquid crystal on silicon. When in use, the entire display device is worn at a position very close to human eyes, which has the advantages of portability and mobility. In order to be easy to wear, it is required that the glasses-type display device should be as small in size and light in weight as possible while ensuring sufficient image quality and sufficient visual magnification. [0003] Due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/02G02B17/08G02B13/18
CPCG02B2027/0116G02B27/0172
Inventor 陈云亮李铁才
Owner SHENZHEN ACAD OF AEROSPACE TECH