Transparent display screen, method for manufacturing transparent display screen, lens and glasses

Abstract

The present invention discloses a transparent display screen, a method for manufacturing a transparent display screen, lenses and glasses, wherein the transparent display screen comprises a transparent substrate, and a transparent circuit layer, a transparent insulating layer, a plurality of pads and a plurality of light-emitting units stacked on the transparent substrate, the transparent insulating layer is provided with a plurality of microcircuit wirings, one end of the microcircuit wirings is electrically connected to the transparent circuit layer, and the other end passes through the transparent insulating layer and is electrically connected to the pads, and the light-emitting units are fixed on the pads. The transparent display screen disclosed in the present application is composed of a multi-layer transparent structure, has a simple structure, is easy to carry, has good overall light transmittance, increases the technological sense of the product and improves the wearing comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent electronic devices, and in particular to a transparent display screen, a method for manufacturing the transparent display screen, lenses and glasses. Background Art

[0002] With the development of computer technology, the continuous progress of industrial technology has been driven. Augmented Reality (AR) technology is a technology that calculates the position and angle of camera images in real time and adds corresponding images. The goal of this technology is to put the virtual world on the real world on the screen. It widely uses multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, sensing and other technical means to simulate computer-generated text, images, three-dimensional models, music, videos and other virtual information, and apply them to the real world. The two types of information complement each other, thereby achieving "enhancement" of the real world. With the improvement of the computing power of portable electronic products, the use of augmented reality is becoming more and more extensive. The augmented reality technology in the existing technology is all in the form of glasses as product output. People only need to wear it on the eye position like wearing glasses to experience AR.

[0003] However, AR glasses are generally head-mounted displays, similar to the structure of conventional glasses, with two lenses and two frames on both sides. At the same time, general AR glasses also have optical systems and computing systems to realize projection and optical waveguide technology, so it is inevitable that the product will be larger in size. When users wear them, they need to use a fixed structure to fix them, which puts a heavy burden on the head and is prone to wearing discomfort.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a transparent display screen, a method for manufacturing a transparent display screen, lenses and glasses, aiming to solve the problem that the existing AR devices are large in size and uncomfortable for users to wear in order to realize the augmented reality function.

[0006] The technical solution of the present invention is as follows:

[0007] A transparent display screen includes a transparent substrate, and a transparent circuit layer, a transparent insulating layer, a plurality of solder pads and a plurality of light-emitting units stacked on the transparent substrate, wherein the transparent insulating layer is provided with a plurality of microcircuit wirings, one end of the microcircuit wiring is electrically connected to the transparent circuit layer, and the other end passes through the transparent insulating layer and is electrically connected to the solder pad, and the light-emitting unit is fixed on the solder pad.

[0008] The transparent display screen, wherein the transparent substrate is an optical glass layer; and / or the light-emitting unit is at least one of an organic light-emitting diode, a Mini LED, and a Micro LED.

[0009] The transparent display screen further comprises a protective layer, wherein the protective layer is arranged on the transparent insulating layer and surrounds the pad.

[0010] The transparent display screen further comprises a sealant layer, and the sealant layer is wrapped on the outer surface of the light-emitting unit.

[0011] In the transparent display screen, the transparent circuit layer is a transparent silicon device circuit layer.

[0012] In the transparent display screen, the light-emitting units, the solder pads and the microcircuit wiring are arranged in sequence along a direction perpendicular to the transparent substrate.

[0013] The present application also discloses a method for manufacturing a transparent display screen, which is used to manufacture any of the transparent display screens described above, and comprises:

[0014] providing a substrate;

[0015] stacking a silicon dioxide layer and a silicon circuit layer on the substrate;

[0016] forming a microcircuit wiring structure on the silicon dioxide layer to form a transparent insulating layer;

[0017] Oxidizing the non-circuit portion of the silicon circuit layer into transparent silicon dioxide to form a transparent circuit layer;

[0018] Arranging optical glass as a transparent substrate above the transparent circuit layer;

[0019] The substrate is removed, and a pad is formed at a position where the microcircuit wiring is formed on the transparent insulating layer;

[0020] The light-emitting unit is welded on the pad to obtain a transparent display screen.

[0021] The present application also discloses a lens, which includes a main body and any transparent display screen as described above, wherein the transparent display screen is arranged on the light incident surface of the main body.

[0022] The lens, wherein the light incident surface of the main body is coated with an optical adhesive layer, and the optical adhesive layer is used to bond the transparent display screen.

[0023] The present application also discloses a pair of glasses, which include a frame, a control circuit board, and any of the lenses described above, wherein the control circuit board is disposed on the frame, and the control circuit board is electrically connected to the lenses.

[0024] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0025] The transparent display screen disclosed in the present application has good light transmittance of the entire transparent display screen by setting the circuit layer to be transparent, the insulating layer to be transparent, and the substrate to be transparent. When working, the display is displayed through the light-emitting unit, and the traditional optical waveguide system is not required, which simplifies the structure of the entire display screen. When installed on an AR device, it occupies a small volume and can be made thin and light, changing the traditional bulky structure, reducing costs, improving the technological sense of the product, and reducing the pressure on users to wear it, thereby improving wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a cross-sectional view of the transparent display screen of the present invention;

[0028] Figure 2 It is a front view of the transparent display screen of the present invention;

[0029] Figure 3 is a flow chart of a method for manufacturing a transparent display screen in the present invention;

[0030] Figure 4 A process diagram of a method for manufacturing a transparent display screen in the present invention;

[0031] Figure 5 is a cross-sectional view of the lens of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the glasses in the present invention.

[0033] Among them, 100, lens; 110, transparent display screen; 111, transparent substrate; 112, transparent circuit layer; 113, transparent insulating layer; 1131, microcircuit wiring; 114, solder pad; 115, light-emitting unit; 116, protective layer; 117, sealant layer; 120, main body; 200, frame; 300, control circuit board. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the prior art, when augmented reality technology is applied, its goal is to make the relevant content of the virtual world be superimposed in the real world, and to effectively realize the dynamic operation of objects based on the application of effective algorithm programs. However, the existing AR glasses often use organic light-emitting diodes for display, which have low brightness, and the integration with the environment through optical waveguide technology is not effective, which can easily cause confusion or dizziness to users, affecting the user experience.

[0036] It should be noted that the present invention takes AR glasses and the transparent display screen of AR glasses as examples to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to AR glasses, and can also be applied to the production or use of other similar workpieces.

[0037] like Figure 1 As shown, in one embodiment of the present application, a transparent display screen 110 is disclosed, which includes a transparent substrate 111, and a transparent circuit layer 112, a transparent insulating layer 113, a plurality of pads 114 and a plurality of light-emitting units 115 stacked on the transparent substrate 111, wherein the transparent insulating layer 113 is provided with a plurality of microcircuit wirings 1131, one end of the microcircuit wiring 1131 is electrically connected to the transparent circuit layer 112, and the other end passes through the transparent insulating layer 113 and is electrically connected to the pad 114, and the light-emitting unit 115 is fixed on the pad 114.

[0038] The transparent display screen 110 disclosed in the present application has a circuit layer that is transparent, an insulating layer that is transparent, and a substrate that is also transparent, so that the entire transparent display screen 110 has good light transmittance. When working, it displays through the light-emitting unit 115, and does not require a traditional optical waveguide system, thereby simplifying the structure of the entire display screen. When installed on an AR device, it occupies a small volume and can be made thin and light, changing the traditional bulky structure, reducing costs, improving the technological sense of the product, and reducing the pressure on users to wear it, thereby improving wearing comfort.

[0039] Specifically, as an implementation method of this embodiment, it is disclosed that the transparent substrate 111 is an optical glass layer. The transparent display screen 110 disclosed in this embodiment is applied to the use scenarios such as the lens 100 and the glass wall, and uses the optical glass as the substrate. First, the optical transmittance is good, which reduces the obstruction to the propagation of light, that is, reduces the impact on the user's observation of the real scene through the transparent substrate 111; second, the surface of the optical glass is smooth and not easy to produce diffuse emission. When the light passes through the transparent substrate 111, the intensity is reduced, and sufficient clarity and brightness can be maintained, allowing the user to observe more clearly; third, the physical properties of the optical glass are good, the hardness is high, and the corrosion resistance is good, which can support and protect other structures of the transparent display screen 110 and improve the durability of the transparent display screen 110.

[0040] Specifically, the optical glass disclosed in this embodiment can be organic glass, quartz glass, optical resin, etc.

[0041] Specifically, as another implementation of this embodiment, it is disclosed that the transparent circuit layer 112 is a transparent silicon device circuit layer. Silicon wafers are commonly used processing components in the semiconductor industry and are the basic raw materials for manufacturing integrated circuits. Silicon device circuit layers made from silicon wafers after processing can be used directly, have good conductive effects, and are stable in structure and not prone to short circuits.

[0042] Specifically, the circuit layer of the transparent silicon device disclosed in this embodiment is a silicon circuit layer, and after being fixed to the insulating layer, the non-circuit part is directly oxidized to produce transparent silicon dioxide. The insulating layer is silicon dioxide, which protects the circuit part and isolates the air to slow down corrosion.

[0043] like Figure 1 As shown, as another implementation of this embodiment, the transparent display screen 110 further includes a protective layer 116, which is disposed on the transparent insulating layer 113 and is disposed around the pad 114. The protective layer 116 is provided firstly to wrap the pad 114, protect the pad 114, and avoid collision and deformation; secondly, to prevent leakage at the pad 114 during operation, a plurality of pads 114 are provided on the transparent insulating layer 113, and a short circuit between the plurality of pads 114 is avoided, so as to maintain the normal operation of the transparent display screen 110; thirdly, to support the pad 114, fix the position of the pad 114, prevent the pad 114 from shifting, and avoid causing a circuit breaker in the working circuit.

[0044] Specifically, as another implementation of this embodiment, it is disclosed that the protective layer 116 is a transparent protective layer 116. Specifically, the protective layer 116 can be set to a transparent synthetic resin, transparent silicon dioxide, etc. The protective layer 116 is set to be transparent in order to reduce the blocking of light and improve the light transmittance of the transparent display screen 110.

[0045] For example Figure 1 As shown, as another implementation of this embodiment, it is disclosed that the transparent display screen 110 further includes a sealant layer 117, and the sealant layer 117 is wrapped on the outer surface of the light-emitting unit 115. The sealant layer 117 is provided to wrap the light-emitting unit 115 in order to protect the light-emitting unit 115, to prevent the light-emitting unit 115 from being hit or contacted during use, so that it can be used stably and for a long time; in addition, the sealant layer 117 can also fix the light-emitting unit 115, to prevent the light-emitting unit 115 from falling off from the pad 114, and to maintain a normal light-emitting state; in addition, the sealant layer 117 can be an optical sealant layer 117, and the optical sealant layer 117 is set to be transparent, so as to reduce the adverse effect on the light transmittance of the transparent display screen 110, and at the same time, the light emitted by the light-emitting unit 115 can be better transmitted through optical processing, which is conducive to obtaining a clear display effect.

[0046] Specifically, as another implementation of this embodiment, the light emitting unit 115, the pad 114 and the microcircuit wiring 1131 are sequentially arranged in a direction perpendicular to the transparent substrate 111. Because the light emitting unit 115, the pad 114 and the microcircuit wiring 1131 may affect the penetration effect of light in the transparent display screen 110 to some extent, these structures are arranged to overlap, thereby reducing the light shielding area on the transparent display screen 110 as much as possible and improving the light transmittance of the transparent display screen 110.

[0047] Specifically, as another implementation of this embodiment, it is disclosed that the pad 114 is an under bump metal (UBM) pad 114. UBM is an alloy material such as indium, titanium, molybdenum, gold, etc. UBM has a low melting point, which can reduce the melting temperature of mass transfer, has a good conductive effect, and can be quickly fused when melting the light-emitting unit 115, thereby accelerating the docking speed; after docking, the connection is stable, the conductive effect is good, and it can be used for a long time.

[0048] Specifically, as another implementation of this embodiment, it is disclosed that the light-emitting unit 115 is at least one of an organic light-emitting diode, a Mini LED, and a Micro LED. The use of a new semiconductor display technology can be used to display directly on an AR transparent device through self-luminescence of pixels, so that the optical waveguide technology is not required, the hardware of the AR device is simplified, the system is simplified, and the cost is saved; in addition, the light-emitting structure used by the new semiconductor display technology is small in size, which can reduce the space occupied on the substrate, which is beneficial to the transparent display screen 110 to improve the light transmission effect.

[0049] For example, Figure 2As shown, Micro LED display technology refers to a display technology that uses self-luminous micron-scale light-emitting diodes as light-emitting pixel units and assembles them on a driving panel to form a high-density light-emitting diode array. Due to the small size, high integration and self-luminescence of Micro LED chips, compared with traditional light-emitting diodes, Micro LED has greater advantages in terms of brightness, resolution, contrast, energy consumption, service life, response speed and thermal stability. Through Micro LED semiconductor technology, the pixel pitch on the display screen is reduced from millimeter level to micron level, reducing the space occupied by the light-emitting unit 115, thereby improving the light transmittance of the display screen, which can reach a light transmittance effect of more than 80%. At the same time, the size of Micro LED is less than 10 microns, so more light-emitting units 115 can be set on the same area of ​​the driving circuit board, which improves the resolution of the transparent display screen 110, so that the transparent display screen 110 can display a high image sampling rate (Pixels Per Inch, referred to as PPI), and the PPI value can reach more than 1000, meeting the process requirements of the transparent display screen 110.

[0050] Specifically, the transparent substrate 111, transparent circuit layer 112, transparent insulating layer 113 and other structures disclosed in this embodiment are very thin, so the thickness of the transparent display screen 110 finally manufactured is also very small, which is convenient for bonding with AR equipment and can be flexible.

[0051] like Figure 3 and Figure 4 As shown, as another embodiment of the present application, a method for manufacturing a transparent display screen 110 is disclosed, which is used to manufacture any of the transparent display screens 110 described above, and includes:

[0052] S100, providing a substrate;

[0053] S200, such as Figure 4 As shown in Figure (a), a silicon dioxide layer and a silicon circuit layer are stacked on the substrate;

[0054] S300, such as Figure 4 As shown in FIG. (b), a structure of microcircuit wiring 1131 is formed on the silicon dioxide layer to form a transparent insulating layer 113;

[0055] S400, such as Figure 4 As shown in FIG. (b), the non-circuit portion of the silicon circuit layer is oxidized into transparent silicon dioxide to form a transparent circuit layer 112;

[0056] S500, such as Figure 4 As shown in Figure (c), an optical glass is provided on the transparent circuit layer 112 as a transparent substrate 111;

[0057] S600, such as Figure 4 As shown in FIG. (d), the substrate is removed, and a pad 114 is formed at a position where the microcircuit wiring 1131 is formed on the transparent insulating layer 113;

[0058] S700, such as Figure 4 As shown in FIG. (e), the light-emitting unit 115 is welded on the soldering pad 114 to obtain the transparent display screen 110.

[0059] The manufacturing method of the transparent display screen 110 disclosed in this embodiment is to first form a transparent insulating layer 113 and a transparent circuit layer 112 on a substrate, and then peel off the substrate by etching, and set a pad 114 and a light-emitting unit 115 on the transparent insulating layer 113 to obtain the transparent display screen 110. The manufacturing process is simple, easy to operate, and convenient for mass production.

[0060] Specifically, in the manufacturing method disclosed in this embodiment, the substrate can be made of silicon material. Silicon is an element with good stability. During the manufacturing process, the silicon material remains stable and is not prone to reaction.

[0061] Specifically, in the manufacturing method disclosed in this embodiment, the optical glass, the transparent circuit layer 112 and the insulating layer are bonded together by optical adhesive. Optical adhesive has good bonding effect and special bonding method, and can be used in the transparent display screen 110 to better exert bonding performance.

[0062] Specifically, Figure 4 As shown in FIG. (f), in the manufacturing method disclosed in this embodiment, after step S700, the method further includes:

[0063] Applying optical glue around the pad 114 to form a transparent protective layer 116;

[0064] A sealant is coated around the light emitting unit 115 to form a sealant layer 117 .

[0065] Specifically, in the manufacturing method disclosed in this embodiment, in step S700 , the light emitting unit 115 is transferred to the pad 114 by mass transfer.

[0066] like Figure 5 As shown, as another embodiment of the present application, a lens 100 is disclosed, which includes a main body 120 and a transparent display screen 110 as described above, wherein the transparent display screen 110 is arranged on the light incident surface of the main body 120. The transparent display screen 110 is bonded to the main body 120 with optical adhesive. The main body 120 is generally a transparent resin lens 100 or transparent glass. The lens 100 is directly made, which can simplify the structure of the lens 100 that can realize the AR function, reduce its own weight, reduce the occupied space, and facilitate the design and installation on the matching frame 200.

[0067] Specifically, as an implementation of this embodiment, an optical adhesive layer is coated on the light incident surface of the main body 120, and the optical adhesive layer is used to bond the transparent display screen 110. When bonding with optical adhesive, the connection interface can be completely filled with adhesive, so that the connection does not affect the continuity of light and the light transmittance of the lens 100 is maintained.

[0068] like Figure 6 As shown, as another embodiment of the present application, a pair of glasses is disclosed, which includes a frame 200, a control circuit board 300, and any of the lenses 100 described above, wherein the control circuit board 300 is disposed on the frame 200, and the control circuit board 300 is electrically connected to the lens 100. The transparent display screen 110 on the lens 100 is controlled by the control circuit board 300, thereby realizing the function of augmented reality.

[0069] In summary, the present application discloses a transparent display screen 110, which includes a transparent substrate 111, and a transparent circuit layer 112, a transparent insulating layer 113, a plurality of pads 114 and a plurality of light-emitting units 115 stacked on the transparent substrate 111, wherein the transparent insulating layer 113 is provided with a plurality of microcircuit wirings 1131, one end of the microcircuit wirings 1131 is electrically connected to the transparent circuit layer 112, and the other end passes through the transparent insulating layer 113 and is electrically connected to the pads 114, and the light-emitting units 115 are fixed on the pads 114. The transparent display screen 110 disclosed in the present application is configured to be transparent by configuring the circuit layer to be transparent, the insulating layer to be transparent, and the substrate to be transparent, so that the entire transparent display screen 110 has good light transmittance, and is displayed through the light-emitting units 115 when working, without the need for a traditional optical waveguide system, thereby simplifying the structure of the entire display screen, and when installed on an AR device, it occupies a small volume, can be made thin and light, changes the traditional bulky structure, reduces costs, improves the technological sense of the product, and reduces the pressure of the user wearing it, thereby improving the wearing comfort.

[0070] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0071] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for manufacturing a transparent display screen, characterized in that: include: providing a substrate; stacking a silicon dioxide layer and a silicon circuit layer on the substrate; forming a microcircuit wiring structure on the silicon dioxide layer to form a transparent insulating layer; Oxidizing the non-circuit portion of the silicon circuit layer into transparent silicon dioxide to form a transparent circuit layer; Arranging optical glass as a transparent substrate above the transparent circuit layer; The substrate is removed, and a pad is formed at a position where the microcircuit wiring is formed on the transparent insulating layer; welding the light-emitting unit onto the pad to obtain a transparent display screen; The transparent display screen includes a transparent substrate, and a transparent circuit layer, a transparent insulating layer, a plurality of solder pads and a plurality of light-emitting units stacked on the transparent substrate. The transparent insulating layer is provided with a plurality of microcircuit wirings, one end of the microcircuit wiring is electrically connected to the transparent circuit layer, and the other end passes through the transparent insulating layer and is electrically connected to the solder pad. The light-emitting unit is fixed on the solder pad.

2. The method for manufacturing a transparent display screen according to claim 1, characterized in that: The transparent substrate is an optical glass layer; and / or, The light-emitting unit is at least one of an organic light-emitting diode, a Mini LED, and a Micro LED.

3. The method for manufacturing a transparent display screen according to claim 1, characterized in that: A protective layer is disposed on the transparent insulating layer, and the protective layer is disposed around the pad.

4. The method for manufacturing a transparent display screen according to claim 1, characterized in that: The light emitting unit, the pad and the microcircuit wiring are arranged in sequence along a direction perpendicular to the transparent substrate.

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