CN113325588A - High-brightness high-resolution high-contrast augmented reality display equipment - Google Patents
High-brightness high-resolution high-contrast augmented reality display equipment Download PDFInfo
- Publication number
- CN113325588A CN113325588A CN202110685231.0A CN202110685231A CN113325588A CN 113325588 A CN113325588 A CN 113325588A CN 202110685231 A CN202110685231 A CN 202110685231A CN 113325588 A CN113325588 A CN 113325588A
- Authority
- CN
- China
- Prior art keywords
- micro led
- led array
- augmented reality
- brightness
- contrast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003190 augmentative effect Effects 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 230000010287 polarization Effects 0.000 claims description 15
- 238000003491 array Methods 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 230000007812 deficiency Effects 0.000 abstract 1
- 239000003086 colorant Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001621 AMOLED Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses high-brightness high-resolution high-contrast augmented reality display equipment which comprises an image source device and a display optical device, wherein the image source device comprises a control module, a micro LED array, a beam expander and a display source module, and the micro LED array emits light under the drive of the control module to serve as backlight of the display source module, so that the contrast deficiency of LCOS and DLP is complemented by the micro LED. Compared with the LED as backlight, the micro LED can provide higher brightness, controls the on-off of a local chip to improve the contrast, well controls the power consumption, and realizes the augmented reality equipment with high brightness, high contrast and high resolution.
Description
Technical Field
The application belongs to the technical field of augmented reality display equipment, and particularly relates to high-brightness high-resolution high-contrast augmented reality display equipment.
Background
Augmented Reality (AR) combines the real world with virtual display, and can superimpose virtual information on the real world, and is widely used in various industries.
The optics and display systems of AR display devices can be divided into image source devices that generate and project images into display optics, and display optics that reflect the images into the eye.
The image source device mainly has: LCOS, OLED, DLP, micro led, etc., wherein:
LCOS: liquid crystal on silicon, a Liquid crystal on silicon, is developed from the LCD base;
an OLED: the silicon-based OLED is developed from the OLED, and the hottest direction of the OLED is an AMOLED flexible screen;
dlp (digital Light processing): a technology for displaying visible digital information based on a digital Micromirror device (dmd) developed by TI (texas instruments, usa);
a micro LED: the display technology takes self-luminous micron-scale LEDs as luminous pixel units (LED pixel units) and assembles the luminous pixel units on a driving panel to form a high-density LED array.
Advantages and disadvantages of existing image source devices: the OLED has the conditions of insufficient brightness, high contrast and high resolution; LCOS and DLP schemes have the characteristics of high brightness, low contrast and high resolution; the micro led has high contrast, high brightness, and low resolution.
Disclosure of Invention
The application aims to provide high-brightness high-resolution high-contrast augmented reality display equipment, and a micro LED is used as a backlight source of a reflective image source such as LCOS or DLP to realize high brightness, high contrast and high resolution effects on the augmented reality display equipment.
In order to achieve the purpose, the technical scheme of the application is as follows:
the utility model provides a high contrast augmented reality display device of high luminance high resolution, augmented reality display device includes image source device and shows optical device, the image source device includes control module, micro LED array, beam expanding lens and display source module, wherein:
the control module is used for receiving a signal source image, planning the brightness of each LED pixel unit in the micro LED array after the resolution reduction processing is carried out on the signal source image according to the specification of the micro LED array, and controlling the on-off of each LED pixel unit in the micro LED array;
the micro LED array emits light under the driving of the control module to serve as backlight of the display source module;
the beam expander is arranged on the light path of the micro LED array and expands the backlight;
and the display source module is used for receiving the signal source image and displaying the signal source image under the action of backlight.
Optionally, the display source module is an LCOS-si based liquid crystal or DLP display screen.
Optionally, the micro led array is a full-color micro led array.
Optionally, the micro led array includes a monochromatic green micro led array, a monochromatic blue micro led array, and a monochromatic red micro led array.
Optionally, the image source device further includes a spectroscope or a light mixing prism, and the spectroscope or the light mixing prism is used for mixing light emitted by the three monochromatic micro led arrays.
Optionally, the image source device further comprises a polarization beam splitter prism for splitting the horizontal polarization and the vertical polarization of light.
According to the high-brightness high-resolution high-contrast augmented reality display equipment, the micro LED is used as the backlight source of the LCOS or DLP reflective image source, so that the contrast of the LCOS and the DLP is insufficient and is complemented by the micro LED. The micro led can also provide higher brightness. Compared with the LED as backlight, the micro LED controls the on-off of a local chip to improve the contrast, and in addition, the power consumption is well controlled, so that the augmented reality equipment with high brightness, high contrast and high resolution is realized.
Drawings
Fig. 1 is a schematic structural diagram of an augmented reality display device according to the present application;
FIGS. 2 to 5 are schematic diagrams of light paths of a backlight using a single-color micro LED array according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of an optical path of a backlight using a full-color micro LED array according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of the working principle of the polarization splitting prism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the existing projection or helmet-mounted display technology, the mixed light of red, green and blue LEDs is mainly used as the backlight of DLP or LCOS. What this application used is the micro LED, and the micro LED can use full-color micro LED, also can use monochromatic micro LED to mix. Firstly, a signal source image is transmitted to the LCOS or DLP according to a transmitted signal source. And the signal source is subjected to resolution reduction processing and then is sent to the micro LED, and the micro LED controls the brightness and switches on and off each image source according to a signal source image. The mixed light path reaches the DLP or LCOS, thereby realizing the display effect with high brightness and high contrast. The display of the light path is a matching light path, namely, the display light beam of the micro LED is expanded to the display area of the DLP or LCOS to be equally divided.
The micro LED is also called a micro light emitting diode, and refers to a high-density integrated LED array, the distance between LED pixel units in the array is 10 micrometers, each LED pixel unit can self-emit light and can be independently positioned and lightened, and image display is further realized.
The application provides a high contrast augmented reality display device of high luminance high resolution, as shown in fig. 1, including image source device and demonstration optical device, the image source device includes control module, micro LED array, beam expander and display source module, wherein:
the control module is used for receiving a signal source image, planning the brightness of each LED pixel unit in the micro LED array after the resolution reduction processing is carried out on the signal source image according to the specification of the micro LED array, and controlling the on-off of each LED pixel unit in the micro LED array;
the micro LED array emits light under the driving of the control module to serve as backlight of the display source module;
the beam expander is arranged on the light path of the micro LED array and expands the backlight;
and the display source module is used for receiving the signal source image and displaying the signal source image under the action of backlight.
Specifically, the signal source image is received, the resolution reduction processing is carried out on the signal source image according to the specification of the micro LED array, and the resolution reduction processing is carried out on the signal source image so that the signal source image meets the specification of the adopted micro LED array.
For example, as in the conventional 0.55 inch 4K resolution display source module lcos (dlp) on the market, the size is 7.4mm 12.8mm, and the size of an individual pixel is 3.2 microns. The resolution of the corresponding signal source image is 3840 × 2160.
In order to perform resolution matching with the micro LED array, if a micro LED array with a resolution of 960 × 540 is selected, and the size of a single LED pixel unit is also 3.2 micrometers × 3.2 micrometers, it is necessary to reduce the resolution of the signal source image to 960 × 540, where the LED pixel unit of each micro LED array corresponds to 4 pixels of an lcos (dlp). Therefore, when the beam expander is used for expanding beams subsequently, the corresponding amplification rate is 4 times, namely the micro LED is expanded by four times.
And planning the brightness of each LED pixel unit in the micro LED array according to the brightness of each pixel on the signal source image for the image with reduced resolution. The micro LED array is a full-color micro LED array or consists of three monochromatic micro LED arrays, namely the micro LED array comprises a monochromatic green micro LED array, a monochromatic blue micro LED array and a monochromatic red micro LED array.
If the signal source image is a full-color micro LED array, the brightness of each LED pixel unit corresponds to the brightness of each pixel of the signal source image after resolution reduction; in the case of three single color micro LED arrays, color splitting is performed first to determine the brightness of each LED pixel cell on each color array.
With respect to color splitting, the following formula can be referred to:
assuming that chromaticity coordinates of RGB three primary colors are (Xr, Yr), (xg, yg), (xb, yb) respectively, and tristimulus values thereof are Xr, Yr and Zr respectively; xg, Yg, Zg; xb, Yb, Zb. The conversion formula of chromaticity coordinates and tristimulus values is as follows:
Xr＝(xr/yr)Yr，Xg＝(xg/yg)Yg，Xb＝(xb/yb)Yb
Zr＝[(1-xr-yr)/yr]Yr，Zg＝[(1-xg-yg)/yg]Yg，Zb＝[(1-xb-yb)/yb]Yb
for the pixel point needed by display, the tristimulus values of the pixel point are formed by superposing the tristimulus values of three primary colors:
X＝Xr+Xg+Xb，Y＝Yr+Yg+Yb，Z＝Zr+Zg+Zb
transforming the formula yields:
X＝Yr(xr/yr+axg/yg+bxb/yb)
Y＝Yr(1+a+b)
Z＝Yr{(1-xr-yr)/yr+a(1-xg-yg)/yg+b(1-xb-yb)/yb}
therefore, the chromaticity coordinates of the pixel point can be obtained through formula calculation:
x＝X/(X+Y+Z)y＝Y/(X+Y+Z)
wherein, a and b are defined as brightness scale coefficients of three primary colors:
a＝Yg/Yr，b＝Yb/Yr。
the brightness scale factor of the three primary colors can be determined through the formula, so that the brightness can be split according to the colors, and the brightness of each LED pixel unit on each color array can be determined. The color separation is a relatively mature technology in the field and is not described in detail here.
As shown in fig. 2 to 5, three monochromatic micro led arrays are used as the light path schematic diagrams of the backlight, which are explained below. In this embodiment, the image source device further includes a spectroscope or a light mixing prism, and the spectroscope or the light mixing prism is used for mixing light emitted by the three monochromatic micro led arrays.
In fig. 2, beam expanders are respectively arranged behind three monochromatic micro led arrays, then three colors are mixed by a light mixing prism, and light beams after the light mixing treatment are projected on LCOS \ DLP through a polarization beam splitter prism PBS and reflected out.
In fig. 3, a light mixing prism is arranged behind three monochromatic micro led arrays, a beam expander is arranged behind the light mixing prism, three colors are mixed through the light mixing prism, the mixed light is expanded through the light beam expander after being processed, and then the mixed light is projected to LCOS/DLP through a polarization beam splitter PBS and is reflected out.
In fig. 4, a spectroscope is arranged behind three monochromatic micro led arrays, a beam expander is arranged behind the spectroscope, three colors are mixed by the spectroscope, the mixed light is expanded by the beam expander after being processed, and the mixed light is projected onto LCOS \ DLP through a polarization beam splitter PBS and reflected out.
In fig. 5, beam expanders are respectively arranged behind three monochromatic micro led arrays, a spectroscope is arranged, three colors are mixed by the spectroscope after beam expansion, and the mixed light is projected onto LCOS \ DLP through a polarization beam splitter PBS and reflected.
As shown in fig. 6, for a schematic diagram of a light path using a full-color micro led array as a backlight, light beams are directly expanded by a beam expander, and then projected onto LCOS \ DLP through a polarization beam splitter PBS and reflected.
In the above example, the beam expander satisfies the etendue conservation law, i.e., the integral of the area traversed by the beam and the solid angle occupied by the beam is equal, without taking into account material losses.
In an embodiment of the present application, the image source device further comprises a polarization splitting prism for separating horizontal polarization and vertical polarization of light. As shown in fig. 7, the incident S-polarized light is reflected by the PBS and then illuminates on the LCOS display chip, when the applied voltage of a pixel of the liquid crystal layer is 0, the input S-polarized light passes through the liquid crystal layer, the polarization direction is not deflected, the input S-polarized light reaches the bottom and is reflected back to output the S-polarized light, the S-polarized light is reflected by the PBS prism, the S-polarized light returns to the original path and cannot enter the transmission light path, the light output is zero, and the pixel is in a "dark state". When the voltage is applied to the pixel from the outside, the input S polarized light passes through the liquid crystal layer, the polarization direction is deflected, the S polarized light reaches the bottom, is reflected back to output P polarized light, directly passes through the PBS prism and enters the transmission light path, and the pixel presents a bright state and forms an image on a screen.
The specific design of the PBS mainly satisfies the incident light angle and the emergent light angle, and belongs to the mature technology in the field, which is not described herein again.
The display source module is an LCOS (liquid Crystal on silicon) or DLP (digital light processing) display screen.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides an augmented reality display device of high contrast of high luminance high resolution, augmented reality display device includes image source device and demonstration optical device, its characterized in that, the image source device includes control module, micro LED array, beam expanding lens and display source module, wherein:
the control module is used for receiving a signal source image, planning the brightness of each LED pixel unit in the micro LED array after the resolution reduction processing is carried out on the signal source image according to the specification of the micro LED array, and controlling the on-off of each LED pixel unit in the micro LED array;
the micro LED array emits light under the driving of the control module to serve as backlight of the display source module;
the beam expander is arranged on the light path of the micro LED array and expands the backlight;
and the display source module is used for receiving the signal source image and displaying the signal source image under the action of backlight.
2. The high brightness, high resolution, high contrast augmented reality display device of claim 1, wherein the display source module is an LCOS liquid crystal on silicon or DLP display screen.
3. The high brightness high resolution high contrast augmented reality display device of claim 1, wherein the micro led array is a full color micro led array.
4. The high brightness, high resolution, high contrast augmented reality display device of claim 1, wherein the micro led arrays comprise monochromatic green, blue and red micro led arrays.
5. The high-brightness high-resolution high-contrast augmented reality display device according to claim 4, wherein the image source device further comprises a beam splitter or a light mixing prism for mixing light emitted from the three monochromatic micro LED arrays.
6. The high brightness, high resolution, high contrast augmented reality display device of claim 1, wherein the image source device further comprises a polarizing beam splitter prism for separating horizontal and vertical polarizations of light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110685231.0A CN113325588A (en) | 2021-06-21 | 2021-06-21 | High-brightness high-resolution high-contrast augmented reality display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110685231.0A CN113325588A (en) | 2021-06-21 | 2021-06-21 | High-brightness high-resolution high-contrast augmented reality display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113325588A true CN113325588A (en) | 2021-08-31 |
Family
ID=77424060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110685231.0A Pending CN113325588A (en) | 2021-06-21 | 2021-06-21 | High-brightness high-resolution high-contrast augmented reality display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113325588A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402110A (en) * | 2010-09-15 | 2012-04-04 | 凤凰光学(上海)有限公司 | LED (light-emitting diode) shining structure with three primary colors |
| CN105739094A (en) * | 2014-12-11 | 2016-07-06 | 北京邮电大学 | Near-eye display method based on lens array |
| US20180024355A1 (en) * | 2016-07-19 | 2018-01-25 | The Board Of Trustees Of The University Of Illinoi | Method and system for near-eye three dimensional display |
| CN108538876A (en) * | 2018-04-24 | 2018-09-14 | 万金平 | A kind of Light Transmission AR glasses display chips and preparation method thereof |
| CN108919531A (en) * | 2018-08-03 | 2018-11-30 | 杭州光粒科技有限公司 | AR display system based on liquid-crystal zoom lens |
| CN109212756A (en) * | 2018-09-06 | 2019-01-15 | 上海麦士信息技术有限公司 | A method of realizing that AR directly projects display based on Micro LED |
| CN110850669A (en) * | 2019-07-29 | 2020-02-28 | 上海鲲游光电科技有限公司 | Micro LED-based developing device and developing method thereof |
| US10650785B1 (en) * | 2019-02-21 | 2020-05-12 | Microsoft Technology Licensing, Llc | Color management of display device |
| CN111338127A (en) * | 2020-04-09 | 2020-06-26 | Tcl华星光电技术有限公司 | Display module and display device |
| CN111487786A (en) * | 2020-04-26 | 2020-08-04 | 京东方科技集团股份有限公司 | Optical display system, control method and display device |
| CN211698430U (en) * | 2019-07-29 | 2020-10-16 | 上海鲲游科技有限公司 | Micro LED-based AR display device |
| CN111856749A (en) * | 2019-04-28 | 2020-10-30 | 云谷（固安）科技有限公司 | Display device and method |
| CN112802403A (en) * | 2019-11-13 | 2021-05-14 | 舜宇光学（浙江）研究院有限公司 | Micro-projection light engine based on Micro LED, Micro-projection light engine method and near-to-eye display equipment |
| CN112882280A (en) * | 2019-11-29 | 2021-06-01 | 海信视像科技股份有限公司 | Display device |
| US20210181510A1 (en) * | 2019-12-17 | 2021-06-17 | Invensas Bonding Technologies, Inc. | Bonded optical devices |
-
2021
- 2021-06-21 CN CN202110685231.0A patent/CN113325588A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402110A (en) * | 2010-09-15 | 2012-04-04 | 凤凰光学(上海)有限公司 | LED (light-emitting diode) shining structure with three primary colors |
| CN105739094A (en) * | 2014-12-11 | 2016-07-06 | 北京邮电大学 | Near-eye display method based on lens array |
| US20180024355A1 (en) * | 2016-07-19 | 2018-01-25 | The Board Of Trustees Of The University Of Illinoi | Method and system for near-eye three dimensional display |
| CN108538876A (en) * | 2018-04-24 | 2018-09-14 | 万金平 | A kind of Light Transmission AR glasses display chips and preparation method thereof |
| CN108919531A (en) * | 2018-08-03 | 2018-11-30 | 杭州光粒科技有限公司 | AR display system based on liquid-crystal zoom lens |
| CN109212756A (en) * | 2018-09-06 | 2019-01-15 | 上海麦士信息技术有限公司 | A method of realizing that AR directly projects display based on Micro LED |
| US10650785B1 (en) * | 2019-02-21 | 2020-05-12 | Microsoft Technology Licensing, Llc | Color management of display device |
| CN111856749A (en) * | 2019-04-28 | 2020-10-30 | 云谷（固安）科技有限公司 | Display device and method |
| CN110850669A (en) * | 2019-07-29 | 2020-02-28 | 上海鲲游光电科技有限公司 | Micro LED-based developing device and developing method thereof |
| CN211698430U (en) * | 2019-07-29 | 2020-10-16 | 上海鲲游科技有限公司 | Micro LED-based AR display device |
| CN112802403A (en) * | 2019-11-13 | 2021-05-14 | 舜宇光学（浙江）研究院有限公司 | Micro-projection light engine based on Micro LED, Micro-projection light engine method and near-to-eye display equipment |
| CN112882280A (en) * | 2019-11-29 | 2021-06-01 | 海信视像科技股份有限公司 | Display device |
| US20210181510A1 (en) * | 2019-12-17 | 2021-06-17 | Invensas Bonding Technologies, Inc. | Bonded optical devices |
| CN111338127A (en) * | 2020-04-09 | 2020-06-26 | Tcl华星光电技术有限公司 | Display module and display device |
| CN111487786A (en) * | 2020-04-26 | 2020-08-04 | 京东方科技集团股份有限公司 | Optical display system, control method and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201576164U (en) | Micro projector used for 3D display | |
| US7237909B2 (en) | Optical member, illuminating device, and projection type video display | |
| WO1999064912A1 (en) | Light source and display device | |
| US20070091272A1 (en) | Projection assembly | |
| US11860526B2 (en) | Beam modulation apparatus and projection system | |
| US10863167B2 (en) | Stereoscopic image projection device and stereoscopic display glasses | |
| CN101963744A (en) | LCOS liquid crystal projection system and device | |
| WO2020230510A1 (en) | Image projection apparatus | |
| JPH11337876A (en) | Electronic picture display projection device | |
| CN107357124B (en) | Multi-primary-color double DMD laser projection display device | |
| CN107092156A (en) | A kind of colour projection shows light engine | |
| CN106371273B (en) | Mixed light source device, light-emitting control method thereof and projection system | |
| US10104352B2 (en) | Projector and image display method | |
| CN100424544C (en) | Optical projecting system utilizing integrated colour wave filter on silicon plate liquid crystal microdisplay LCOS | |
| JP2007065412A (en) | Illuminating device and projection type video display device | |
| WO2020088163A1 (en) | Projection system and projection control method | |
| CN113325588A (en) | High-brightness high-resolution high-contrast augmented reality display equipment | |
| CN210109545U (en) | Self-luminous projection display system and micro-display full-color optical machine | |
| CN101976011B (en) | MD short focus projection display device | |
| JP2003057746A (en) | Light source device and display device | |
| JP2003005286A (en) | Light source device and display device | |
| CN210323739U (en) | Two-piece LCD projector based on half field sequential display mode | |
| JP4821915B2 (en) | Projection type display device and image output device | |
| JP5430141B2 (en) | Projection type display device and driving method thereof | |
| CN201765425U (en) | LCOS liquid crystal projection system and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210831 |
|
| RJ01 | Rejection of invention patent application after publication |