CN102566073A - Light valve type stereo display structure - Google Patents
Light valve type stereo display structure Download PDFInfo
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- CN102566073A CN102566073A CN2012100173143A CN201210017314A CN102566073A CN 102566073 A CN102566073 A CN 102566073A CN 2012100173143 A CN2012100173143 A CN 2012100173143A CN 201210017314 A CN201210017314 A CN 201210017314A CN 102566073 A CN102566073 A CN 102566073A
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- light valve
- light
- stereo display
- valve system
- backlight
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Abstract
The invention discloses a light valve type stereo display structure, belonging to the field of electronic display. The light valve type stereo display structure mainly comprises a backlight unit (1), a light valve system (2), a color filtering layer (3) and a lens layer (4). A backlight system is composed of a luminous device and a control circuit and used for generating a plane light source of which the color and brightness are adjustable in certain range of a space domain and a time domain. The luminous device can be a point light source array combined with a uniform light sheet. The light valve system is used for accurately controlling the backlight passing rate of each pixel on corresponding position within corresponding time. The light valve system can be realized by a liquid crystal, electrowetting or micro-mirror array, and the light transmittance of each pixel point is controlled by an auxiliary circuit. The color filtering layer enables full spectrum to pass or selects part of the spectrum to pass. The lens layer is used for controlling the light path to form parallax error between left and right eyes and realize stereo display. The backlight system, the light valve system and the lens array coordinate to work and are used for two-dimensional or three-dimensional image or video display.
Description
Technical field
The present invention relates to a kind of light valve type stereo display structure, belong to electronic information display technique field.
Background technology
The tradition liquid crystal display utilizes color filter to form red, green, blue three primary colours pixel, and then shows through the spacing color mixed colour that carries out.This display mode is generally adopted: comprise general FPD and stereo display because technology is ripe relatively at present.But this display mode display mode no all roses mainly shows two aspects: the one, and light efficiency is low, because the light transmission rate of color filter greatly about about 1/3rd, that is to say that nearly 2/3rds light is wasted by absorbed; The 2nd, spatial resolution is lower, because adopt spacing color mixedly, each valid pixel is made up of three subpixels, but so true resolution be 1/3rd of driving pixels.
Present stereo display mode helps looks (wearing anaglyph spectacles) stereo display mode, grating stereo display mode, integrated stereo display mode, holographic display mode, body demonstration etc.Wherein grating stereo display mode, integrated stereo display mode are all through high-resolution liquid crystal demonstration and grating or lens arra combination realization.This dual mode all has high requirements to the spatial resolution of display screen.
The present invention has avoided the application of color filter, carries out the time colour mixture through utilizing colored backlight, so light utilization efficiency can improve three times, thereby reduces power consumption to three/one.Because do not need sub-pixel, therefore under same addressable pixel number condition, effective resolution can improve three times.Because consider the issuable color division of time colour mixture phenomenon, can adopt the array back light unit, reduce colour-difference between the field, thereby reduce color division phenomenon.Because adopt array backlight, therefore can also adopt the method for local dimming, reduce device power consumption.Therefore the present invention will provide a kind of high resolving power, low-power consumption stereoscopic display device structure, and support multiple stereo display pattern, comprise grating stereo demonstration, integrated stereo display pattern even help the stereo display pattern of looking.
Summary of the invention
Technical matters:The present invention provides a kind of light valve type stereo display structure, and this structure has characteristics such as high resolving power, low-power consumption.
Technical scheme:Light valve type stereo display structure of the present invention mainly comprises back light system, light valve system, colour filter, four major parts of lens jacket, and this display structure is the stepped construction of multilayer, and order is back light unit, light valve system, colour filter, lens jacket from bottom to top;
1) back light unit is made up of illuminator and control circuit, is used to produce color, brightness adjustable planar light source in spatial domain and time domain certain limit; Illuminator is that pointolite array combines even mating plate, or the area source array,
2) light valve system is used for accurately controlling the percent of pass backlight on the relevant position of each pixel in the corresponding time, and light valve system is to be similar to general liquid crystal display, utilizes liquid crystal to combine polarized systems to realize; Or utilize the wetting or micromirror systems formation of electricity, by the transmitance of each picture element of auxiliary circuit control;
3) colour filter is an optional layer, passes through such as full spectrum; Perhaps select part spectrum to pass through; If full spectrum passes through, adopt simple glass; If select part spectrum, then as required spectrum is formulated corresponding color filter;
4) lens jacket is used to control opticpath, forms stereo display; According to different stereo display implementations, adopt optical grating construction, microlens array structure, perhaps post lens, lenticular pitch can become corresponding size according to the different designs that stereo display requires;
5), be used for plane or three-dimensional image and video demonstration through the co-ordination between back light unit and light valve system.
Four major parts.As shown in Figure 1.
Back light unit is made up of illuminator and control circuit, is used to produce color, brightness adjustable planar light source in spatial domain and time domain certain limit.Illuminator can be pointolite array and the combination of even mating plate, like light emitting diode matrix and even mating plate; Or the area source array, like electroluminescent light source; In order to improve the flatness of space distribution backlight, the area source array also can be used even mating plate.A kind of back light unit typical structure based on light emitting diode is as shown in Figure 2.
Light valve system is used for accurately controlling the percent of pass backlight on the relevant position of each pixel in the corresponding time.Light valve system can be made up of liquid crystal, the wetting or micro mirror array of electricity etc., by the transmitance of each picture element of auxiliary circuit control.With liquid crystal for, in order to realize the light valve function, need be used in combination with polaroid, similar with general liquid crystal display structure, as shown in Figure 3.
Colour filter can be that full spectrum passes through, and perhaps selects part spectrum to pass through.If full spectrum passes through, simple glass can be realized; If select part spectrum, then as required spectrum is formulated corresponding color filter.
Lens array layer is used to control opticpath, forms the right and left eyes parallax, thereby realizes stereo display.According to the difference of stereo display implementation, can adopt multiple optical texture, like grating (Fig. 4), lens pillar (Fig. 5), lens arra (Fig. 6) etc.
Co-ordination between back light system, light valve system, the lens arra is used for two dimension or 3-D view and shows.
Beneficial effect:The present invention can break away from the application to color filter, so light utilization efficiency can improve three times, thereby reduces power consumption to three/one.And because do not need sub-pixel, under same addressable pixel number condition, effective resolution can improve three times, is very beneficial for the realization of high-quality stereo display.To the issuable color division of time colour mixture phenomenon, can adopt the array back light unit, reduce colour-difference between the field, thereby reduce color division phenomenon.Because adopt array backlight, can also adopt the method for local dimming, reduce device power consumption.Therefore the present invention will provide a kind of high resolving power, low-power consumption stereoscopic display device structure, and support multiple stereo display pattern, comprise general closed planar demonstration, grating stereo demonstration, integrated stereo display pattern even help the stereo display pattern of looking.
Description of drawings
Fig. 1, a kind of light valve type stereo display structure.
Fig. 2, a kind of back light unit typical structure based on light emitting diode.
Fig. 3, a kind of light valve structure synoptic diagram based on liquid crystal.
Fig. 4, the optical grating construction synoptic diagram.
Fig. 5, post lens arrangement synoptic diagram.
Fig. 6, the lens arra synoptic diagram.
Embodiment
As shown in Figure 1, a kind of light valve type stereo display structure, specifically it comprises back light unit 1, light valve system 2, colour filter 3, lens jacket 4.
Four major parts of lens jacket.The primary structure synoptic diagram is as shown in Figure 1.
Back light unit is made up of illuminator and control circuit, is used to produce color, brightness adjustable planar light source in spatial domain and time domain certain limit.Illuminator can be pointolite array and the combination of even mating plate, like light emitting diode matrix and even mating plate; Or the area source array, like electroluminescent light source; In order to improve the flatness of space distribution backlight, the area source array also can be used even mating plate.A kind of back light unit typical structure based on light emitting diode is as shown in Figure 2.Each LED unit can be controlled separately, considers cost, and half LED unit number is more limited, such as 16x9=144 LED unit, each LED but with the red, green, blue three-color LED is all arranged, and can control separately.Entire backlight is exactly to constitute the display device that spatial resolution is lower like this.In time, each LED unit need refresh according to certain frequency, such as 180Hz, perhaps other.Each LED data are switched can be synchronous, also can refresh with progressive scan mode according to certain phase differential.
Light valve system is used for accurately controlling the percent of pass backlight on the relevant position of each pixel in the corresponding time.Light valve system can be made up of liquid crystal, the wetting or micro mirror array of electricity etc., by the transmitance of each picture element of auxiliary circuit control.With liquid crystal for, in order to realize the light valve function, need be used in combination with polaroid, similar with general liquid crystal display structure, as shown in Figure 3.Use liquid crystal and depress the difference of degree that the incident light polarization direction is reversed in different electric, through rise partially, an analyzing, can realize the control of light transmission rate.Equally, utilize electric wetting principle,, utilize the light transmission rate of each pixel of electric signal control through making up electric moistening unit array.
Colour filter can be that full spectrum passes through, and perhaps selects part spectrum to pass through.If full spectrum passes through, simple glass can be realized; If select part spectrum, then as required spectrum is formulated corresponding color filter.Colour filter is a selectable unit.If adopt simple sequential colour mixture, can be without color filter, if the pattern that adopts time domain and spatial domain colour mixture to combine then need be equipped with corresponding color filter.
Lens array layer is used to control opticpath, forms the right and left eyes parallax, thereby realizes stereo display.According to the difference of stereo display implementation, can adopt multiple optical texture, like grating (Fig. 4), lens pillar (Fig. 5), lens arra (Fig. 6) etc.
Co-ordination between back light system, light valve system, the lens arra is used for two dimension or 3-D view and shows.
Claims (1)
1. light valve type stereo display structure; Mainly comprise back light system, light valve system, colour filter, four major parts of lens jacket; It is characterized in that: this display structure is the stepped construction of multilayer, and order is back light unit (1), light valve system (2), colour filter (3), lens jacket (4) from bottom to top;
1) back light unit (1) is made up of illuminator and control circuit, is used to produce color, brightness adjustable planar light source in spatial domain and time domain certain limit; Illuminator is that pointolite array combines even mating plate, or the area source array,
2) light valve system (2) is used for accurately controlling the percent of pass backlight on the relevant position of each pixel in the corresponding time, and light valve system is to be similar to general liquid crystal display, utilizes liquid crystal to combine polarized systems to realize; Or utilize the wetting or micromirror systems formation of electricity, by the transmitance of each picture element of auxiliary circuit control;
3) colour filter (3) is an optional layer, if full spectrum passes through, adopts simple glass; If select part spectrum, then as required spectrum is formulated corresponding color filter;
4) lens jacket (4) is used to control opticpath, forms stereo display; According to different stereo display implementations, adopt optical grating construction, microlens array structure, perhaps post lens, lenticular pitch becomes corresponding size according to the different designs that stereo display requires;
5), be used for plane or three-dimensional image and video demonstration through the co-ordination between back light unit and light valve system.
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| CN2012100173143A CN102566073A (en) | 2012-01-19 | 2012-01-19 | Light valve type stereo display structure |
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| CN2012100173143A CN102566073A (en) | 2012-01-19 | 2012-01-19 | Light valve type stereo display structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913851A (en) * | 2014-04-18 | 2014-07-09 | 中航华东光电（上海）有限公司 | Three-dimensional display device and brightness control method thereof |
| CN110491292A (en) * | 2019-08-14 | 2019-11-22 | 深圳市华星光电半导体显示技术有限公司 | Multi-level display device and electronic equipment |
| CN114530124A (en) * | 2020-11-23 | 2022-05-24 | 华为技术有限公司 | Display device, driving system and display driving method |
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| CN102253438A (en) * | 2011-08-02 | 2011-11-23 | 昆山龙腾光电有限公司 | Electric wetting lens and forming method thereof |
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- 2012-01-19 CN CN2012100173143A patent/CN102566073A/en active Pending
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| CN2314431Y (en) * | 1997-12-27 | 1999-04-14 | 中国科学院长春物理研究所 | Color liquid crystal display element |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913851A (en) * | 2014-04-18 | 2014-07-09 | 中航华东光电（上海）有限公司 | Three-dimensional display device and brightness control method thereof |
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| CN110491292A (en) * | 2019-08-14 | 2019-11-22 | 深圳市华星光电半导体显示技术有限公司 | Multi-level display device and electronic equipment |
| CN114530124A (en) * | 2020-11-23 | 2022-05-24 | 华为技术有限公司 | Display device, driving system and display driving method |
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Application publication date: 20120711 |