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Switchable display apparatus

A display device, birefringence technology, applied in instruments, optics, electrical components, etc., can solve the problem of not being self-evident, and achieve the effect of prolonging life, optimizing optical crosstalk, and easy to manufacture

Active Publication Date: 2008-01-09
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case where the lens is a switched birefringent lens for allowing changes made by a lens that operates depending on the polarization of the light passing through the display, it is not undocumented how to operate a circular polarizer that also depends on the polarization of the light self-explanatory

Method used

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  • Switchable display apparatus
  • Switchable display apparatus
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Embodiment Construction

[0088] The various embodiments described hereinafter share some common figures. In short, common figures and common reference numerals will be used, and descriptions thereof will not be repeated for each embodiment.

[0089] Figure 2 shows a first embodiment of the invention. An array of pixels 50 is formed on display substrate 48 to make up a spatial light modulator. Substrate 48 may include a series of arrays of addressable thin film transistors and electrodes so that each pixel may be individually addressed using electrical signals. The thin film transistor may be inorganic or may be implemented with organic materials. On the other hand, pixels can be addressed by an active addressing scheme in which addressing transistors need not be present on the pixels.

[0090] Each of the pixels 50 includes an emissive region in which the emissive material including the chromophores is uniaxially aligned such that the polarization of the emission is substantially linear and in subs...

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Abstract

In one aspect, a display apparatus comprises: an emissive spatial light modulator comprising an array of pixels of organic electroluminescent material each arranged to output substantially polarised light; a switchable polariser being switchable between a first and a second polarisation mode in which the polariser passes light of respective polarisation components; and a birefringent lens positioned to receive light from the spatial light modulator. The birefringent lens is arranged to direct light of a first polarisation component into a first directional distribution and to direct light of a second polarisation component into a second directional distribution different from the first directional distribution, the birefringent lens and the switchable polariser being positioned in series. In another aspect, a display apparatus comprises: an emissive spatial light modulator comprising an array of pixels each arranged to output randomly polarised light; a birefringent lens positioned to receive light from the spatial light modulator arranged in a first mode of operation of the display apparatus to direct light of a first polarisation component into a first directional distribution and in a second mode of operation of the display apparatus to direct light of a second polarisation component into a second directional distribution different from the first directional distribution; a quarter waveplate; and a linear polariser. The quarter waveplate is arranged between the spatial light modulator and the birefringent lens and the linear polariser is arranged on the opposite side of the birefringent lens from the quarter waveplate.

Description

technical field [0001] The invention relates to a device for image display Background technique [0002] Such devices may be used in autostereoscopic three-dimensional displays, switchable two-dimensional (2D) / three-dimensional (3D) autostereoscopic displays, or switchable high-brightness display systems. These systems can be used in computer monitors, communication handsets, digital cameras, notebook and desktop computers, gaming devices, automotive or other mobile display device applications, and telecommunication switching applications. [0003] Display systems that use micro-optic components to enhance functionality include liquid crystal display (LCD) projectors, autostereoscopic 3D displays, and brightness enhancing reflective displays. [0004] In each system, a micro-optical component, such as a microlens array, is aligned with at least one pixel of a spatial light modulator component. A rational system is shown in plan view in Figure 1. The backlight 2 produces t...

Claims

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Application Information

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IPC IPC(8): G02B27/22H04N13/00
Inventor 伍德盖特·格雷厄姆·约翰哈罗德·乔纳森
Owner AU OPTRONICS CORP