High brightness wide gamut display
A primary color and filter color technology, applied in the field of high brightness and/or wide color gamut display, can solve the problem of intensity reduction and achieve the effect of improving efficiency
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example 1
[0032] Example 1: Six primary colors, six-panel wide color gamut display
[0033] The following example illustrates the selection of primary color wavelength ranges for wide color gamut displays using six spatial light modulator (SLM) panels, where each panel produces one primary color. As described below, this structure can completely cover the color gamut typical of projection films such as movie positives, enabling projection displays to produce virtually all colors that projection films can produce. figure 2 The optical structure of the device according to this embodiment of the invention is schematically illustrated. figure 2 The schematic structure of is particularly applicable to devices using reflective LCD-type SLM panels.
[0034] According to an embodiment of the present invention, utilizing a relay lens 202, a reflective-transmissive element, such as a polarizing beam splitter (PBS) 203, and a color separation device, such as "X" color separator cubes 204 and 20...
example 2
[0041] Example 2: Multiple primary colors, single panel, sequential display
[0042] The following example illustrates the implementation of the present invention against the background of sequential display of six primary colors. In a sequential display system, the colors are typically generated by a sequential color switching mechanism, such as a color wheel or drum, that passes through each color at a preset time period (window) in each field of the video stream. In such systems, the relative intensities of the primary colors can be adjusted by adjusting the relative sizes of the various color filter segments on the color wheel. LCoS (Liquid Crystal on Silicon) or micromirrors (DMD TM )-type panels to achieve a single-panel structure, and these panels can be purchased from, for example, Texas Instruments, U.S.A. In this example, the spectra of Figures 3A and 3B are produced by six filter segments, each of which transmits one of the spectra of Figures 3A and 3B. The ope...
example 3
[0045] Example 3: Five primary colors, single panel, sequential display
[0046] It should be noted that there are advantages to using six primary colors, as they allow greater flexibility in color adjustment than systems using fewer than six primary colors. However, according to some embodiments of the present invention, there are certain advantages when using fewer than six primary colors. One such advantage is that in a sequential projection system, more time can be allocated to each primary color, thereby increasing the temporal resolution (bit depth) of the displayed image. According to this embodiment of the invention, five primary colors can be used. For example, the five primary colors may include blue with a wavelength spectrum ranging from approximately 400nm to between 460nm and 540nm, cyan with a wavelength spectrum ranging from between 400nm and 460nm to between 500nm and 560nm, and a wavelength spectrum ranging from between 480nm and 520nm. Green from 540nm t...
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