Display device and display method
A display device and a technology to be displayed, which are applied to color TV components, image reproducers using projection devices, electrical components, etc., can solve the problem of high cost of light sources, and achieve the effect of reducing the use and cost of light sources
Active Publication Date: 2021-11-09
APPOTRONICS CORP LTD
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[0003] In order to solve the technical problem of high cost of light sources in existing wide color gamut display devices, the present invention provides a display device and display method that can achieve a wider color gamut and lower cost of light sources
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[0042] Based on the above, using a wide color gamut light source (such as R, G, B three-color pure laser light source) can achieve the color gamut standard of Rec.2020, but there are technical problems such as high cost (such as red laser and green laser are expensive and the electro-optic conversion efficiency is low. low), the present invention provides a display device and a display method that can reduce the use of wide color gamut light sources.
[0043] Usually, in a wide color gamut film source, not every frame image has very vivid colors, in other words, only a part of the image has particularly green or red vivid colors, or in a frame image Among them, only a part of the pixels are particularly bright in color, and this part of the image or pixels must use a wide color gamut light source (such as a pure laser light source) to restore and display the image. While other pixels are included in a smaller color gamut space, using other light sources (fluorescent light sour...
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The invention discloses a display device and a display method. The display device includes a light source device, an image data processing module, a light modulation device and an image synthesis device. The light source device emits the first light and the second light. The image data processing module judges the color gamut range of an image to be displayed according to the original image data. The original image data is based on the second color gamut range. If at least some pixels of the image to be displayed The color coordinates of are located in a predetermined area, the second color gamut range covers the first color gamut range and has an excess part, the predetermined area is outside the first color gamut range and the boundary line inside the second color gamut range does not include the boundary line area, the image data processing module converts the original image data of at least some pixels whose color coordinates are located in the predetermined area into first sub-data based on the first color gamut range and second sub-data based on the second color gamut range. The light modulation device modulates the first light and the second light respectively according to the first sub-data and the second sub-data to obtain image light, and the image synthesis device synthesizes the image light to display an image.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a display method. Background technique [0002] The color gamut usually refers to the spectral trajectory of visible light that the human eye can see in nature, and the area formed by the visible spectral trajectory is the largest color gamut area that the human eye can see visible light. At present, display devices such as projectors and monitors composed of different display devices all use R, G, and B three-primary color display devices to restore and reproduce images in color. In a specified chromaticity space, such as CIE1931xy chromaticity space, the triangle formed by the three primary colors of R, G, and B of the display device is called the color gamut that the device can display. The brighter and more realistic the picture, but this requires the light source of the display device to provide a larger color gamut. For example, the color gam...
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IPC IPC(8): H04N9/31
CPCH04N9/3105H04N9/3155H04N9/3182H04N9/31
Inventor 郭祖强杜鹏李屹
Owner APPOTRONICS CORP LTD