CN114446192A - Method and equipment for attaching micro display - Google Patents
Method and equipment for attaching micro display Download PDFInfo
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- CN114446192A CN114446192A CN202210172981.2A CN202210172981A CN114446192A CN 114446192 A CN114446192 A CN 114446192A CN 202210172981 A CN202210172981 A CN 202210172981A CN 114446192 A CN114446192 A CN 114446192A
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- 230000003287 optical effect Effects 0.000 claims description 32
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- 238000001514 detection method Methods 0.000 claims description 21
- 239000003292 glue Substances 0.000 claims description 19
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- 239000002131 composite material Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
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- 238000002604 ultrasonography Methods 0.000 claims description 4
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- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
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- 230000009471 action Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The invention provides a micro-display attaching method and device. The method comprises the following steps: fixing a three-color light-combining prism at the attaching position, wherein the three-color light-combining prism is a cubic prism, and the cubic prism is provided with a first surface, a second surface, a third surface, a fourth surface and a fifth surface which are different from the first surface and the second surface and are used for attaching; respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights; acquiring images of the three micro display screens from light outlets of the three-color light-combining prism; correcting the positions of the three micro display screens based on the image; and curing the three micro display screens on the three-color light-combining prism. According to the invention, the three micro display screens are attached to the three-color light-combining prism, and the attaching precision is ensured by correcting the positions of the three micro display screens.
Description
Technical Field
The invention relates to the field of optical devices, in particular to a micro-display attaching method and device.
Background
The micro LED display technology is a display technology in which a self-luminous micrometer-scale LED is used as a light-emitting pixel unit, and the light-emitting pixel unit is assembled on a driving panel to form a high-density LED array. However, currently, based on Micro LED display technology, only monochromatic Micro display screens can be produced in batch, so that Micro displays capable of only displaying monochromatic Micro displays are manufactured, and the application of Micro displays capable of only displaying monochromatic Micro displays in real scenes is limited. In addition, a small number of products of micro-displays based on a three-color light combination technology are also available at present, each micro-display mainly comprises a three-color light combination prism X-cube and three micro led micro display screens capable of emitting different monochromatic lights (R, G, B), the three micro led micro display screens are located on different three surfaces of the same circle of the three-color light combination prism, the 4 th surface of the circle is a light outlet of the three micro led micro display screens, and after the three micro display screens are all lightened, a three-color light combination image can be obtained at the light outlet through the action of the prism. Because the volume of the three-color light-combining prism is extremely small, the bonding is extremely difficult, and no corresponding bonding process exists for the micro display at present. Therefore, how to design a new bonding method and bonding apparatus for a microdisplay, and ensure bonding accuracy while completing bonding is a technical problem to be solved urgently.
Disclosure of Invention
In order to solve the above technical problems, an objective of the present invention is to provide a method and an apparatus for attaching a microdisplay.
In a first aspect, the present invention provides a method for attaching a microdisplay, the method comprising:
fixing a three-color light-combining prism at the attaching position, wherein the three-color light-combining prism is a cubic prism, and the cubic prism is provided with a first surface, a second surface, a third surface, a fourth surface and a fifth surface which are different from the first surface and the second surface and are used for attaching;
respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights;
acquiring images of the three micro display screens from a light outlet of the three-color light-combining prism, wherein the light outlet of the three-color light-combining prism is the sixth surface of the three-color light-combining prism;
correcting the positions of the three micro display screens based on the image;
and curing the three micro display screens on the three-color light-combining prism.
Optionally, fixing the three-color light-combining prism at the fitting position includes:
and pressing the second surface of the three-color light-combining prism so as to fix the three-color light-combining prism at the attaching position.
Optionally, before the three micro display screens are respectively attached to the third, fourth, and fifth surfaces of the three-color light-combining prism, the method further includes:
the flexible claws are controlled to respectively grab the three micro display screens and respectively transmit the three micro display screens to the suckers of the three multi-axis adjusting platforms, so that the backs of the three micro display screens are respectively adsorbed on the suckers of the three multi-axis adjusting platforms.
Optionally, the three micro-display screens are respectively attached to the third, fourth and fifth surfaces of the three-color light-combining prism, including:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface;
and controlling the three micro display screens to rotate along the attached surfaces respectively so as to remove air bubbles in the optical filler.
Optionally, the three micro-display screens are respectively attached to the third, fourth and fifth surfaces of the three-color light-combining prism, including:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface;
removing bubbles in the optical filler by using ultrasound.
Optionally, the method for attaching a microdisplay further includes:
adjusting the position of a second micro display screen, wherein the second micro display screen is positioned on a fourth surface opposite to the light outlet of the three-color light-combining prism until the second micro display screen is positioned in the center of the attached surface in the image acquired by the camera;
and adjusting the positions of the first micro display screen and the third micro display screen until the frames of the first micro display screen and the third micro display screen in the image collected by the camera coincide with the frame of the first micro display screen.
Optionally, an optical filler is present between each micro display screen and the surface to which the micro display screen is attached, where the optical filler is UV glue, and after the three micro display screens are attached to the third, fourth, and fifth surfaces of the three-color light-combining prism, the method further includes:
and controlling the ultraviolet lamp to irradiate the UV glue for a first time.
Optionally, the curing the three micro display screens on the three-color light-combining prism includes:
and controlling the ultraviolet lamp to irradiate the UV glue for a second time period, wherein the second time period is longer than the first time period.
Alternatively to this, the first and second parts may,
the obtaining of the images of the three micro-display screens from the light outlet of the three-color light-combining prism includes:
the three micro display screens are lightened after being pressed and connected, and marking pixel points are arranged on the three micro display screens and are displayed after the micro display screens are lightened;
acquiring light combination images of the three micro display screens by using a detection camera arranged at a light outlet of the three-color light combination prism;
the correcting the positions of the three micro display screens based on the image comprises:
acquiring the position offset of each micro display screen relative to the corresponding standard laminating position based on the marking pixel points in the light combination image;
and adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
Optionally, the preset positions of the three micro display screens are provided with marking pixel points, the marking pixel points are provided with marks for the appearances of the pixels,
the obtaining of the images of the three micro-display screens from the light outlet of the three-color light-combining prism includes:
irradiating coaxial light to the light outlet by using a detection camera with a coaxial light source at the light outlet of the three-color light-combining prism;
acquiring reflected light images of three micro display screens acquired by the detection camera;
the correcting the positions of the three micro display screens based on the image comprises:
acquiring the position offset of each micro display screen relative to the corresponding standard attaching position based on the marking pixel points in the reflective image;
and adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
Optionally, after the three micro display panels are cured on the three-color light-combining prism, the method further includes:
and acquiring a composite image of the three-color light-combining prism, and carrying out defect detection on the composite image.
In a second aspect, the present invention further provides a microdisplay pasting device, which includes a processor, a memory, and a microdisplay pasting program stored in the memory and executable by the processor, wherein the microdisplay pasting program, when executed by the processor, implements the steps of the microdisplay pasting method as described above.
In the invention, a three-color light-combining prism is fixed at a bonding position, the three-color light-combining prism is a cubic prism, and the cubic prism is provided with a first surface, a second surface, a third surface, a fourth surface and a fifth surface which are different from the first surface and the second surface and are used for bonding; respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights; acquiring images of the three micro display screens from a light outlet of the three-color light-combining prism, wherein the light outlet of the three-color light-combining prism is the sixth surface of the three-color light-combining prism; correcting the positions of the three micro display screens based on the image; and curing the three micro display screens on the three-color light-combining prism. Based on the scheme of the invention, the three micro display screens are attached to the three-color light-combining prism, and the attachment precision is ensured by correcting the positions of the three micro display screens.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for attaching a microdisplay according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hardware structure of a microdisplay pasting device according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In a first aspect, an embodiment of the present invention provides a method for attaching a microdisplay.
In an embodiment, referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a microdisplay bonding method according to the present invention. As shown in fig. 1, the method for attaching a microdisplay includes:
step S10, fixing a three-color light-combining prism at the bonding position, wherein the three-color light-combining prism is a cubic prism, and the cubic prism is provided with a first surface, a second surface, a third surface, a fourth surface and a fifth surface which are different from the first surface and the second surface and are used for bonding;
in this embodiment, first place trichromatic light-combining prism at pan feeding mouth tool, then move it to laminating position, then fix trichromatic light-combining prism in laminating position. Wherein, can snatch tristimulus amax and close the light prism through the grabbing device who has flexible clamping jaw to remove to the laminating position, or adsorb tristimulus amax and close the light prism through the grabbing device who has the sucking disc, and remove to the laminating position. The three-color light-combination prism comprises 6 surfaces, namely an upper surface (namely a second surface), a lower surface (namely a first surface) and four surfaces, namely a front surface, a rear surface, a left surface and a right surface.
The three-color light-combining prism is fixed at the attaching position by adsorbing the first surface of the three-color light-combining prism through a sucker on the attaching position; the second surface of the tricolor light-combining prism can be pressed through the pressing assembly, and the first surface of the tricolor light-combining prism is adsorbed through the sucking disc on the attaching position, so that the tricolor light-combining prism is fixed on the attaching position. Fix the trichromatic light-combining prism in the laminating position, in order to prevent that follow-up in-process trichromatic light-combining prism that will laminate the little display screen on the trichromatic light-combining prism from taking place to remove.
Further, in an embodiment, the fixing the three-color light-combining prism at the attaching position includes:
and pressing the second surface of the three-color light-combining prism so as to fix the three-color light-combining prism at the attaching position.
In this embodiment, fixing the three-color light-combining prism in the laminating position can be performed by pressing the second surface of the three-color light-combining prism through the pressing assembly, so as to fix the three-color light-combining prism in the laminating position. The tricolor light-combination prism is fixed at the attaching position, so that the tricolor light-combination prism is prevented from moving in the process of attaching the micro display screen on the tricolor light-combination prism subsequently.
Step S20, respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights;
in this embodiment, three micro display screens that can send different monochromatic lights are grabbed or adsorbed respectively to three grabbing device of accessible control, move the third of three micro display screens respectively to three-colour and close the third of light prism, four, five surfaces (three in four surfaces all around promptly) and laminate. Wherein, three micro display screens respectively emit R, G, B three colors of light after being pressed and connected with the dot screen.
Further, in one embodiment, step S20 includes:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface; and controlling the three micro display screens to rotate along the attached surfaces respectively so as to remove air bubbles in the optical filler.
In this embodiment, each little display screen is adjusted the platform by the multiaxis that corresponds and is driven, adjusts the platform through controlling three multiaxis and drives three little display screen and close the third, four, five surface motion of light prism respectively towards the trichrome, until three little display screen laminating trichrome closes the third, four, five surface of light prism. And optical filler exists between the surface of each micro display screen and the surface attached with the micro display screen, the optical filler has certain tension and is close to the transmissivity of the micro display glass, on one hand, three micro display screens can be respectively glued on the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, and on the other hand, the friction between the micro display screens and the prism can be reduced. In order to ensure a better light emitting effect, bubbles in the optical filler need to be removed, and the three micro display screens are driven to rotate along the attached surfaces respectively by controlling the three multi-axis adjusting platforms so as to remove the bubbles in the optical filler. The optical filler is a transparent medium with the transmittance similar to that of glass, and can be UV glue. During the de-bubbling, bubbles in the optical filler can also be removed by means of ultrasound.
Further, in one embodiment, step S20 includes:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface; removing bubbles in the optical filler by using ultrasound.
The optical filler may be applied to a predetermined position on each of the micro display panels (e.g., an area outside the screen of the micro display panel and inside the edge of the substrate or an area inside the screen) before the bonding, or may be applied to a predetermined position on the third, fourth, and fifth surfaces of the three-color light-combining prism.
Furthermore, after the convex micro-display is attached to the corresponding surface, a gap exists between the convex micro-display and the corresponding surface. Therefore, before the bonding, optical fillers such as UV glue dots are coated on preset positions on each micro display screen; after the bonding, bonding glue with larger tension can be injected into a gap between the micro display screen and the corresponding surface.
Step S30, acquiring images of the three micro display screens from the light exit of the tristimulus combination prism, where the light exit of the tristimulus combination prism is the sixth surface of the tristimulus combination prism;
in this embodiment, a detection camera is disposed at the light exit of the tristimulus combination prism, and images of the three micro display screens are obtained through the detection camera, where the light exit of the tristimulus combination prism is a sixth surface of the tristimulus combination prism. Specifically, the detection camera can be directly opposite to the light outlet, and is away from the light outlet by a preset distance, and the preset distance is set according to actual needs.
Step S40 of performing position correction on the three micro display screens based on the image;
in this embodiment, based on the image acquired by the detection camera, the offset of the actual position of each micro display screen relative to the standard attachment position can be determined by combining a correlation algorithm, so that the position of the three micro display screens is corrected according to the calculated offset.
And step S50, curing the three micro display screens on the three-color light-combination prism.
In this embodiment, after carrying out position correction to three little display screens, can solidify three little display screens on the three-colour light-combining prism to the realization is laminated the solidification with three little display screens on the three-colour light-combining prism.
In this embodiment, a three-color light-combining prism is fixed at the bonding position, the three-color light-combining prism is a cubic prism, and the cubic prism has a first surface, a second surface opposite to the first surface, and a third surface, a fourth surface and a fifth surface different from the first surface and the second surface and used for bonding; respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights; acquiring images of the three micro display screens from a light outlet of the three-color light-combining prism, wherein the light outlet of the three-color light-combining prism is the sixth surface of the three-color light-combining prism; correcting the positions of the three micro display screens based on the image; and curing the three micro display screens on the three-color light-combining prism. Based on this embodiment scheme, realized laminating three little display screen on tristimulus joiner prism, and carried out position correction through carrying out three little display screen, guaranteed the precision of laminating.
Further, in an embodiment, before step S20, the method further includes:
the flexible claws are controlled to respectively grab the three micro display screens and respectively transmit the three micro display screens to the suckers of the three multi-axis adjusting platforms, so that the backs of the three micro display screens are respectively adsorbed on the suckers of the three multi-axis adjusting platforms.
In this embodiment, the front surfaces (surfaces where the display screens are located) of the three micro display screens face upward, and then the flexible claws are controlled to respectively grab the three micro display screens and respectively transfer the three micro display screens to the suckers of the three multi-axis adjusting platforms. The number of the flexible claws can be three, and the three flexible claws are used for respectively grabbing the three micro display screens and respectively transmitting the three micro display screens to the suckers of the three multi-axis adjusting platforms; of course, only one flexible claw can be arranged, and the flexible claw first grabs the first micro display screen and then transfers the first micro display screen to the sucker of the multi-axis adjusting platform 1; then, a second micro display screen is grabbed and then transferred to a sucker of the multi-axis adjusting platform 2; and then the third micro display screen is grabbed and then transferred to the sucker of the multi-axis adjusting platform 3. When the flexible claws transmit the micro display screen to the suckers of the multi-axis adjusting platform, the back of the micro display screen faces the suckers, so that the backs of the three micro display screens are respectively adsorbed on the suckers of the three multi-axis adjusting platforms. By the mode, the front face of the micro display screen can be prevented from being stressed, so that the screen of the micro display screen is prevented from being damaged.
Further, in an embodiment, the method for attaching a microdisplay further includes:
adjusting the position of a second micro display screen, wherein the second micro display screen is positioned on a fourth surface opposite to the light outlet of the three-color light-combining prism until the second micro display screen is positioned in the center of the attached surface in the image acquired by the camera;
and adjusting the positions of the first micro display screen and the third micro display screen until the frames of the first micro display screen and the third micro display screen in the image collected by the camera coincide with the frame of the first micro display screen.
In this embodiment, after removing the air bubbles in the optical filler, the position of each micro display screen may be coarsely adjusted. Specifically, a camera is arranged at a position away from the light outlet of the three-color light combining prism by a preset distance, the camera is opposite to the light outlet, and the fourth surface of the three-color light combining prism is located in the center of an image collected by the camera. Based on the three-color light-combining prism, the camera can collect the images of the third, fourth and fifth surfaces of the three-color light-combining prism, and because the three-color light-combining prism is transparent, the relative position relation between each micro display screen and the surface attached with the micro display screen can also be presented on the image collected by the camera. On the basis, the multi-axis adjusting platform used for controlling the second micro display screen can be controlled based on the image acquired by the camera, so that the position of the second micro display screen can be adjusted until the second micro display screen is positioned in the center of the fourth surface attached to the second micro display screen in the image acquired by the camera; and then, controlling two multi-axis adjusting platforms used for controlling the first micro display screen and the third micro display screen so as to adjust the positions of the first micro display screen and the third micro display screen until the frames of the first micro display screen and the third micro display screen in the image collected by the camera coincide with the frame of the first micro display screen.
Further, in an embodiment, an optical filler is present between the surface of each micro display panel to which the micro display panel is attached, and the optical filler is UV glue, and after step S20, the method further includes:
and controlling the ultraviolet lamp to irradiate the UV glue for a first time.
In this embodiment, an optical filler is present between each micro display screen and the surface to which the micro display screen is attached, and the optical filler is a UV adhesive, where the UV adhesive generally refers to a shadowless adhesive, which is also called a photosensitive adhesive or an ultraviolet light curing adhesive, and the shadowless adhesive is a kind of adhesive that can be cured only by irradiation of ultraviolet light, and can be used as an adhesive.
And controlling the ultraviolet lamp to irradiate the UV glue for a first time period so that the UV glue is in an initial state and a fully cured state, and under the condition, the micro display screen can move relative to the corresponding attaching position. The first duration is set according to actual needs, for example, 6 to 10 seconds, and this is merely an illustrative example and does not constitute a limitation on the first duration.
Further, in an embodiment, the curing the three micro display panels on the three color-combining prism includes:
and controlling the ultraviolet lamp to irradiate the UV glue for a second time period, wherein the second time period is longer than the first time period.
In this embodiment, the UV light is controlled to irradiate the UV glue for a second time period, so that the UV glue is completely cured. The second time period is longer than the first time period, and the second time period is set according to actual needs, for example, 3 to 10 minutes, which is only schematically illustrated here and does not constitute a limitation on the second time period. Wherein, the ultraviolet lamp can irradiate the UV glue from the position right above the three-color light-combination prism; the ultraviolet lamp can also irradiate the UV glue from the light outlet of the three-color light-combination prism. The specific location of the UV glue irradiation is set according to actual needs, and is not limited herein.
Further, in one embodiment, step S30 includes:
the three micro display screens are lightened after being pressed, and marking pixel points are arranged on the three micro display screens and are displayed after the micro display screens are lightened;
acquiring light combination images of the three micro display screens by using a detection camera arranged at a light outlet of the three-color light combination prism;
step S40 includes:
acquiring the position offset of each micro display screen relative to the corresponding standard laminating position based on the marking pixel points in the light combination image;
either step S30 or step S40 may be performed after the optical filler is de-bubbled. And adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
In this embodiment, the three micro display screens are crimped and then lighted by the crimping device, wherein the three micro display screens are provided with marking pixel points, and the marking pixel points are displayed after the micro display screens are lighted. Then, acquiring light combination images of the three micro display screens by using a detection camera arranged at a light outlet of the three-color light combination prism, wherein the light outlet of the three-color light combination prism is the sixth surface of the three-color light combination prism; then based on the light combination image, obtaining the actual position of the marked pixel point on each micro display screen through the positioning of a fine positioning algorithm; calculating the offset between the actual position of the marked pixel point on each micro display screen and the corresponding preset position, thereby obtaining the position offset of each micro display screen relative to the corresponding standard laminating position; and then, based on the calculated position offset of each micro display screen relative to the corresponding standard attaching position, sending a corresponding adjusting instruction to a multi-axis adjusting platform for controlling each micro display screen, namely, controlling the multi-axis adjusting platform of each micro display screen to adjust each micro display screen to be located at the corresponding standard attaching position.
Further, in one embodiment, the predetermined positions of the three micro display screens are provided with marking pixels, the marking pixels are provided with marks for the appearances of the pixels,
step S30 includes:
irradiating coaxial light to the light outlet by using a detection camera with a coaxial light source at the light outlet of the three-color light-combining prism;
acquiring reflected light images of three micro display screens acquired by the detection camera;
step S40 includes:
acquiring the position offset of each micro display screen relative to the corresponding standard attaching position based on the marking pixel points in the reflective image;
and adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
In this embodiment, the preset positions of the three micro display screens are provided with marking pixel points, and the marking pixel points are provided with marks for the appearances of the pixels. Therefore, the three micro display screens do not need to be subjected to pressure welding and lighting. Irradiating coaxial light to the light outlet by using a detection camera with a coaxial light source at the light outlet of the three-color light-combining prism, wherein the light outlet of the three-color light-combining prism is the sixth surface of the three-color light-combining prism; then acquiring reflection images of three micro display screens collected by a detection camera, performing appearance detection on the reflection images so as to obtain the actual positions of the marked pixel points, and then calculating the offset between the actual positions of the marked pixel points on each micro display screen and the corresponding preset positions so as to obtain the position offset of each micro display screen relative to the corresponding standard laminating position; and then, based on the calculated position offset of each micro display screen relative to the corresponding standard attaching position, sending a corresponding adjusting instruction to a multi-axis adjusting platform for controlling each micro display screen, namely, controlling the multi-axis adjusting platform of each micro display screen to adjust each micro display screen to be located at the corresponding standard attaching position.
Further, in an embodiment, after step S50, the method further includes:
and acquiring a composite image of the three-color light-combining prism, and carrying out defect detection on the composite image.
In this embodiment, a composite image of the three-color light combining prism is obtained at the light outlet of the three-color light combining prism, and defect detection is performed on the composite image, so as to determine whether a finally obtained micro display capable of combining light emitted by three micro display screens capable of emitting different monochromatic light reaches production requirements. After that, alright carry out the unloading to the trichromatic light that the laminating has three little display screen, the upper surface that concrete accessible grabbing device adsorbs trichromatic light that closes prism carries out the unloading.
In a second aspect, an embodiment of the present invention provides a bonding apparatus for a microdisplay, where the bonding apparatus for a microdisplay may be an apparatus with a data processing function, such as a Personal Computer (PC), a notebook computer, and a server.
Referring to fig. 2, fig. 2 is a schematic diagram of a hardware structure of a microdisplay pasting device according to an embodiment of the present invention. In this embodiment of the present invention, the microdisplay pasting device may include a processor 1001 (e.g., a Central Processing Unit (CPU)), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used for realizing connection communication among the components; the user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WI-FI interface, WI-FI interface); the memory 1005 may be a Random Access Memory (RAM) or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, and the memory 1005 may optionally be a storage device independent of the processor 1001. Those skilled in the art will appreciate that the hardware configuration depicted in FIG. 2 is not intended to be limiting of the present invention, and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
With continued reference to FIG. 2, the memory 1005 of FIG. 2, which is one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a fit program for a microdisplay. The processor 1001 may call a pasting program of the microdisplay stored in the memory 1005, and execute the steps of the method for pasting the microdisplay according to the embodiment of the present invention.
The method for implementing the attaching program of the microdisplay when executed may refer to various embodiments of the attaching method of the microdisplay of the present invention, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing a terminal device to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A method for attaching a microdisplay, the method comprising:
fixing a three-color light-combining prism at the attaching position, wherein the three-color light-combining prism is a cubic prism, and the cubic prism is provided with a first surface, a second surface, a third surface, a fourth surface and a fifth surface which are different from the first surface and the second surface and are used for attaching;
respectively attaching three micro display screens to the third, fourth and fifth surfaces of the three-color light-combining prism, wherein the three micro display screens can respectively emit different monochromatic lights;
acquiring images of the three micro display screens from a light outlet of the three-color light-combining prism, wherein the light outlet of the three-color light-combining prism is the sixth surface of the three-color light-combining prism;
correcting the positions of the three micro display screens based on the image;
and curing the three micro display screens on the three-color light-combining prism.
2. The method of claim 1, wherein fixing the tri-color combining prism in the bonding position comprises:
and pressing the second surface of the three-color light-combining prism so as to fix the three-color light-combining prism at the attaching position.
3. The method of claim 1, further comprising, before attaching the three microdisplays to the third, fourth, and fifth surfaces of the tri-color light-combining prism, respectively:
the flexible claws are controlled to respectively grab the three micro display screens and respectively transmit the three micro display screens to the suckers of the three multi-axis adjusting platforms, so that the backs of the three micro display screens are respectively adsorbed on the suckers of the three multi-axis adjusting platforms.
4. The method of claim 1, wherein attaching three microdisplays to the third, fourth, and fifth surfaces of the tri-color light-combining prism respectively comprises:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface;
and controlling the three micro display screens to rotate along the attached surfaces respectively so as to remove air bubbles in the optical filler.
5. The method of claim 1, wherein attaching three microdisplays to the third, fourth, and fifth surfaces of the tri-color combiner prism, respectively, comprises:
respectively attaching the three micro-display screens to the third surface, the fourth surface and the fifth surface of the three-color light-combining prism, wherein optical fillers exist between each micro-display screen and the attached surface;
removing bubbles in the optical filler by using ultrasound.
6. The method of claim 1, further comprising:
adjusting the position of a second micro display screen, wherein the second micro display screen is positioned on a fourth surface opposite to the light outlet of the three-color light-combining prism until the second micro display screen is positioned in the center of the attached surface in the image acquired by the camera;
and adjusting the positions of the first micro display screen and the third micro display screen until the frames of the first micro display screen and the third micro display screen in the image collected by the camera coincide with the frame of the first micro display screen.
7. The method of claim 1, wherein an optical filler is present between each microdisplay and the surface to which the microdisplay is bonded, the optical filler is UV glue, and after the three microdisplays are bonded to the third, fourth, and fifth surfaces of the three-color light combining prism, the method further comprises:
and controlling an ultraviolet lamp to irradiate the UV glue for a first time.
8. The method of conforming a microdisplay of claim 7, wherein the curing the three microdisplays on the tri-color combiner prism comprises:
and controlling the ultraviolet lamp to irradiate the UV glue for a second time period, wherein the second time period is longer than the first time period.
9. The method of conforming a microdisplay of claim 1,
the obtaining of the images of the three micro-display screens from the light outlet of the three-color light-combining prism includes:
the three micro display screens are lightened after being pressed, and marking pixel points are arranged on the three micro display screens and are displayed after the micro display screens are lightened;
acquiring light combination images of the three micro display screens by using a detection camera arranged at a light outlet of the three-color light combination prism;
the correcting the positions of the three micro display screens based on the image comprises:
acquiring the position offset of each micro display screen relative to the corresponding standard laminating position based on the marking pixel points in the light combination image;
and adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
10. The microdisplay pasting method of claim 1 wherein the three microdisplays are placed in predetermined locations with marker pixels that mark the appearance of the pixels,
the obtaining of the images of the three micro-display screens from the light outlet of the three-color light-combining prism includes:
irradiating coaxial light to the light outlet by using a detection camera with a coaxial light source at the light outlet of the three-color light-combining prism;
acquiring reflected light images of three micro display screens acquired by the detection camera;
the correcting the positions of the three micro display screens based on the image comprises:
acquiring the position offset of each micro display screen relative to the corresponding standard attaching position based on the marking pixel points in the reflective image;
and adjusting the position of each micro display screen based on the position deviation so that each micro display screen is positioned at the corresponding standard laminating position.
11. The method of conforming a microdisplay of claim 1 further comprising, after curing the three microdisplays on the tri-color combiner prism:
and acquiring a composite image of the three-color light-combining prism, and carrying out defect detection on the composite image.
12. A microdisplay pasting device comprising a processor, a memory, and a microdisplay pasting program stored in said memory and executable by said processor, wherein said microdisplay pasting program when executed by said processor implements the steps of the microdisplay pasting method according to any of claims 1-11.
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