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Display device

A display device and imaging surface technology, applied in the optical field, can solve problems such as being unfavorable to miniaturization, increasing the thickness of the overall component, and increasing the distance between the imaging surface and the light-emitting surface 25 , etc.

Inactive Publication Date: 2020-06-19
QUANTUM OPTOELECTRONICS INC
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Problems solved by technology

Wherein, the compensating prism 24 can direct the optical axis of the imaging beam 26 so that the imaging beam 26 is output along the normal direction of the reflective light valve 27, but even so, the setting of the compensating prism 24 will increase the thickness of the whole assembly, so that The distance between the imaging surface of the reflective light valve 27 and the light-emitting surface 25 increases, which is not conducive to miniaturization and matching with short-focus optical systems

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Embodiment Construction

[0100] see Figure 4 ~ Figure 6 , Figure 4 It is a schematic diagram of the structural concept of a preferred embodiment of the display device of the present invention, Figure 5 for Figure 4 A conceptual schematic diagram of the imaging elements of the display device and the viewing angles of several pixels on the imaging surface, Figure 6 for Figure 4 Schematic diagram of the optical path of the display device shown. The display device 4 includes an imaging element 41, a planar surface light source 42 and a polarization separation element 43, and the imaging element 41 has an imaging surface 414 for providing images, and the planar surface light source 42 has a light emitting surface for providing a plurality of illumination beams L1 421 , where the normal of the light emitting surface 421 of the planar surface light source 42 and the normal of the imaging surface 414 of the imaging element 41 are in a non-perpendicular relationship.

[0101] Moreover, the polarizat...

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Abstract

The invention provides a display device. The device comprises an imaging element, a planar surface light source and a polarized light separation element, the planar surface light source is used for providing a plurality of illumination beams; the normal line of the planar surface light source and the normal line of the imaging element have a non-vertical configuration relationship; and the polarized light separation element is arranged between the planar surface light source and the imaging element, is provided with a geometric cylindrical surface, and is used for projecting an illumination light beam from the planar surface light source to the polarized light separation element, generating reflection, enabling the illumination light beam to advance towards the imaging element, and enabling an imaging light beam from the imaging element to pass through the polarized light separation element to enable an image to be presented outwards. According to the invention, the illumination lightbeams can uniformly irradiate on the imaging surface of the imaging element in a certain visual angle, and the element is simple to manufacture and low in cost.

Description

technical field [0001] The present invention relates to the field of optics, in particular to a display device. Background technique [0002] With the advent of the era of multimedia information (Multimedia) and the Internet (Internet), the exchange of images and information has become increasingly rapid, and various new display technologies have emerged as the times require. Along with the development of these display technologies, various display technologies are continuously proposed to solve and respond to different problems faced by various display applications. [0003] Among them, due to the advantages of low power consumption and visibility under sunlight, reflective liquid crystal displays have become one of the mainstream developments in display technology, and the lighting system used to provide illumination beams for reflective liquid crystal displays is crucial The imaging and display quality of the display play an important role. Therefore, the US patents with...

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Application Information

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IPC IPC(8): G02B27/28G02B27/00G02F1/13357
CPCG02B27/0012G02B27/283G02B27/286G02F1/133603G02F1/133606G02F1/13362G02F1/133616
Inventor 吴世彬刘裕升陈纪暐蔡明宪
Owner QUANTUM OPTOELECTRONICS INC