Optical assembly and display device
By integrating the lens circuit, dimming circuit and eye tracking module on the same substrate in a head-mounted display device, and through the optimized layout of the conductive layer and insulating layer, the problem of excessive equipment thickness is solved and the user experience is improved.
Patent Information
- Application Number
- CN202422022774.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The existing head-mounted display devices have a large thickness of the module, which affects the user experience.
The lens circuit, dimming circuit and eye tracking module are all set on the same substrate, and the thickness between the modules is reduced by optimizing the layout of the conductive layer and the insulating layer.
The overall thickness of the optical components is reduced and the user experience is improved.
Smart Images
Figure CN223092219U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of optical technologies, and more particularly, to an optical component and a display device. Background Art
[0002] At present, head-mounted display devices implemented by technologies such as Virtual Reality (VR), Augmented Reality (AR), and Mix Reality (MR) have gradually emerged to meet the usage requirements of people in various fields.
[0003] Existing head-mounted display devices mainly attach a lens module, an eye-tracking module, a dimming module, etc. to a second lens respectively to achieve the display function. However, the head-mounted display device in this way has problems such as a relatively large thickness of the overall device, which affects the user experience. Summary of the Utility Model
[0004] The present utility model provides an optical component and a display device to solve the problems of the existing head-mounted display device, such as a relatively large thickness of the overall device, which affects the user experience.
[0005] Embodiments of the present utility model are implemented as follows:
[0006] An optical component includes a substrate, an eye-tracking module, a lens module, a dimming module, and a current exchange terminal. The lens module includes a first lens and a lens circuit. The dimming module includes a dimming sheet and a dimming circuit. The first lens and the dimming sheet are disposed on one side of the substrate. The first lens is adjacent to the substrate. The lens circuit, the dimming circuit, and the eye-tracking module are located on the side of the substrate close to the first lens, and the lens circuit, the dimming circuit, the eye-tracking module, and the current exchange terminal are disposed around the outer peripheral side of the first lens. The eye-tracking module is located on one side of the current exchange terminal. The current exchange terminal is electrically connected to the lens circuit, the dimming circuit, and the eye-tracking module.
[0007] In the optical component of the present application, the lens circuit, the dimming circuit, and the eye-tracking module are all disposed on the same substrate, thereby reducing the thickness between the modules, and further reducing the thickness of the overall optical component.
[0008] In a possible implementation, a first conductive layer is provided on the side of the dimming sheet close to the first lens, and one or more first electrodes are provided on the side of the dimming sheet away from the first lens. One or more of the first electrodes and the first conductive layer are both electrically connected to the dimming circuit.
[0009] In a possible implementation, a first insulating layer is further provided on the side of the dimming sheet away from the first lens, and one or more of the first electrodes are disposed between the first insulating layer and the dimming sheet.
[0010] In a possible implementation, one or more second electrodes are provided on the side of the first lens close to the dimming sheet, a second conductive layer is provided between the first lens and the substrate, and both one or more of the second electrodes and the second conductive layer are electrically connected to the lens circuit.
[0011] In a possible implementation, a second insulating layer is further provided between the first conductive layer and the first lens, and one or more of the second electrodes are disposed between the second insulating layer and the first lens.
[0012] In a possible implementation, the eye tracking module includes an eye tracking component and an eye tracking circuit, and the eye tracking component is electrically connected to the eye tracking circuit.
[0013] In a possible implementation, the eye tracking component includes an eye tracking control member, an eye tracking acquisition member, and an infrared light source, and the eye tracking control member is communicatively connected to the eye tracking acquisition member and the infrared light source.
[0014] In a possible implementation, the infrared light source is an infrared light-emitting diode.
[0015] An embodiment of the present application further provides a display device, including the optical component and the second lens as described above, and the optical component is disposed on one side of the second lens.
[0016] In a possible implementation, both the first electrode and the second electrode are ITO electrodes.
[0017] The dimming circuit, the lens circuit, and the eye tracking module are all disposed in a second area on the same substrate. On the one hand, it does not affect the optical display function of the optical component; on the other hand, it can also reduce the thickness of the overall optical component. At the same time, due to the change in the layout of the dimming circuit and the lens circuit, the first insulating layer and the first conductive layer are synchronously disposed between the dimming sheet and the first lens, the second insulating layer is disposed on the side of the dimming sheet away from the first lens, and the first electrode is disposed on the side of the eye tracking module away from the first area, so as to satisfy the functional interaction between the modules in the optical component, thereby realizing the optical display effect of the optical component and the display device. Description of the Drawings
[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related accompanying drawings can also be obtained based on these drawings without creative efforts.
[0019] Figure 1 It is a schematic structural diagram of a display device according to an embodiment of the present utility model.
[0020] Figure 2 It is a schematic structural diagram of an optical component according to an embodiment of the present utility model.
[0021] Figure 3 It is a schematic diagram of a first region and a second region in an optical component according to an embodiment of the present utility model.
[0022] Figure 4 For Figure 1 a frame schematic diagram of a part of the optical components in
[0023] Main element symbol description:
[0024] Optical component 100
[0025] Substrate 10
[0026] First region 11
[0027] Second region 12
[0028] Eye tracking module 20
[0029] Eye tracking component 21
[0030] Eye tracking control part 211
[0031] Eye tracking acquisition part 212
[0032] Infrared light source 213
[0033] Eye tracking circuit 22
[0034] Lens module 30
[0035] First lens 31
[0036] Lens circuit 32
[0037] Dimming module 40
[0038] Dimming sheet 41
[0039] Dimming circuit 42
[0040] First electrode 51
[0041] Second electrode 52
[0042] First conductive layer 61
[0043] Second conductive layer 62
[0044] First insulating layer 71
[0045] Second insulating layer 72
[0046] Current exchange terminal 80
[0047] Colloid 90
[0048] Display device 200
[0049] Second lens 210 Detailed implementation manners
[0050] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0051] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners, and are not intended to limit the present utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.
[0053] Some implementation manners of the present utility model will be described in detail. Without conflict, the following implementation manners and the features in the implementation manners can be combined with each other.
[0054] Embodiment
[0055] See Figure 1, this embodiment provides a display device 200. The display device 200 includes an optical component 100 and a second lens 210, and the optical component 100 is disposed on one side of the second lens 210. The second lens 210 includes structures such as a waveguide layer and an antireflection layer. Among them, the display device 200 can be a head-mounted display device such as a VR glasses, an AR glasses, or an MR glasses. The present application does not limit the specific type of the head-mounted display device.
[0056] Please refer to Figure 2 and Figure 3 , the optical component 100 includes a substrate 10, an eye tracking module 20, a lens module 30, a dimming module 40, and a current exchange terminal 80. The lens module 30 includes a first lens 31 and a lens circuit 32, and the dimming module 40 includes a dimming sheet 41 and a dimming circuit 42. The first lens 31 and the dimming sheet 41 are disposed on one side of the substrate 10, and the first lens 31 is disposed adjacent to the substrate 10. The range where the first lens 31 is located on the substrate 10 is defined as a first region 11. The lens circuit 32, the dimming circuit 42, and the eye tracking module 20 are located on the side of the substrate 10 close to the first lens 31. The lens circuit 32, the dimming circuit 42, and the eye tracking module 20 are disposed around the outer peripheral side of the first lens 31. The range where the lens circuit 32, the dimming circuit 42, and the eye tracking module 20 are located on the substrate 10 is defined as a second region 12. The eye tracking module 20 is located on one side of the current exchange terminal 80. Specifically, the eye tracking module 20 is located on the side of the current exchange terminal 80 close to the first lens 31. In other embodiments, the eye tracking module 20 can also be located on the side of the current exchange terminal 80 away from the first lens 31. The current exchange terminal 80 is electrically connected to the lens circuit 32, the dimming circuit 42, and the eye tracking module 20. Among them, the substrate 10 can be made of a glass substrate or a plastic substrate. The current exchange terminal 80 can be a conductive structure such as a gold finger that can achieve current exchange. The first lens 31 is a liquid crystal lens. The present application does not limit the specific material of the substrate 10, the specific type of the current exchange terminal 80, and the specific type of the first lens 31.
[0057] In this embodiment, the first lens 31 is a liquid crystal cell structure, which is mainly composed of liquid crystal sandwiched between two conductive glasses. The dimming sheet 41 is supported by an electrochromic material with electroactivity, and the dimming sheet 41 mainly uses electrochromic technology to achieve the dimming effect. Specifically, under the action of an electric field, the electrochromic material will undergo an electrochemical oxidation-reduction reaction to gain or lose electrons. At the same time, the energy level of the electrochromic material is changed, resulting in a change in color. The eye tracking module 20 mainly tracks according to the characteristics of the user's eyes and the periphery of the eyes or according to the change in the iris angle, so that the display device 200 can predict the user's state and needs according to the detection results of the eye tracking module 20 and perform response actions.
[0058] The optical component 100 directly disposes the first lens 31 and the light-dimming film 41 on one side of the substrate 10. At the same time, the lens circuit 32, the light-dimming circuit 42, the eye-tracking module 20, and the current exchange terminal 80 are disposed in the second area 12, thereby reducing the thickness of the layers stacked between the modules. In this way, the thickness of the overall optical component 100 is reduced, thereby enhancing the user experience.
[0059] In some embodiments, please refer to Figure 4 , the eye-tracking module 20 includes an eye-tracking component 21 and an eye-tracking circuit 22, and the eye-tracking component 21 is electrically connected to the eye-tracking circuit 22. In this embodiment, the eye-tracking component 21 includes an eye-tracking control member 211, an eye-tracking acquisition member 212, and an infrared light source 213. The eye-tracking control member 211 is communicatively connected to the eye-tracking acquisition member 212 and the infrared light source 213. The infrared light source 213 can be an infrared light-emitting diode. When it is necessary to track the user's eyes, the infrared light source 213 provides a collection light source for the eye-tracking acquisition member 212. Then, the eye-tracking acquisition member 212 acquires the characteristics of the user's eyes and the periphery of the eyes. The eye-tracking control member 211 analyzes the information acquired by the eye-tracking acquisition member 212, so that the optical component 100 predicts the user's state and needs.
[0060] In some embodiments, a first conductive layer 61 is provided on the side of the light-dimming film 41 close to the first lens 31, and one or more first electrodes 51 are provided on the side of the light-dimming film 41 away from the first lens 31. The one or more first electrodes 51 and the first conductive layer 61 are both electrically connected to the light-dimming circuit 42. In this embodiment, the number of the first electrodes 51 is three. Two of the first electrodes 51 are located at opposite ends of the light-dimming film 41, and the other first electrode 51 is located between the two first electrodes 51. Among them, the first electrode 51 is also an ITO electrode. ITO is a transparent conductive material, a compound composed of indium and tin, and has excellent optical and electrical properties. In other embodiments, according to the different ranges and magnitudes of the current flowing through the light-dimming film 41, two, four, five, etc. first electrodes 51 can be provided on the side of the light-dimming film 41 away from the first lens 31. The present application does not limit the number of the first electrodes 51 provided on the side of the light-dimming film 41 away from the first lens 31 and the layout of the plurality of first electrodes 51.
[0061] The first conductive layer 61 is provided on the side of the light-dimming film 41 close to the first lens 31, and one or more first electrodes 51 are provided on the side of the light-dimming film 41 away from the first lens 31. It is possible to change the voltage at both ends of the light-dimming film 41 by adjusting the current flowing through the first conductive layer 61 and the one or more first electrodes 51, thereby realizing the light-dimming function of the light-dimming film 41.
[0062] In some embodiments, a first insulating layer 71 is further provided on a side of the light-dimming sheet 41 away from the first lens 31, and one or more first electrodes 51 are disposed between the first insulating layer 71 and the light-dimming sheet 41. The provision of the first insulating layer 71 can prevent electrical conduction between external components disposed on the side of the light-dimming sheet 41 away from the first lens 31 and the light-dimming sheet 41, which may affect the light-dimming effect of the light-dimming sheet 41.
[0063] In some embodiments, one or more second electrodes 52 are provided on a side of the first lens 31 close to the light-dimming sheet 41, a second conductive layer 62 is provided between the first lens 31 and the substrate 10, and both the one or more second electrodes 52 and the second conductive layer 62 are electrically connected to the lens circuit 32. In this embodiment, the number of the second electrodes 52 is three. Two of the second electrodes 52 are located at opposite ends of the first lens 31, and the other second electrode 52 is located between the two second electrodes 52. Among them, the second electrode 52 is also an ITO electrode, and the first conductive layer 61 and the second conductive layer 62 may also be ITO electrodes. In other embodiments, the number of the second electrodes 52 is the same as that of the first electrodes 51 and may be two or four. The present application does not limit the number of the second electrodes 52 and the layout of the second electrodes 52.
[0064] In some embodiments, a second insulating layer 72 is further provided between the first conductive layer 61 and the first lens 31, and one or more second electrodes 52 are disposed between the second insulating layer 72 and the first lens 31. The provision of the second insulating layer 72 can prevent electrical conduction between the light-dimming sheet 41 and the first lens 31, which may affect the light-dimming effect of the light-dimming sheet 41 or the light deflection effect of the first lens 31. Among them, the first insulating layer 71 and the second insulating layer 72 are electrode resistors for blocking current from passing through the first insulating layer 71 or the second insulating layer 72.
[0065] In order to understand the optical component 100, the manufacturing method of the optical component 100 is introduced as follows: A substrate 10 is provided, and a second conductive layer 62 is provided on one side of the substrate 10. Then, around the four peripheral edges of the second conductive layer 62, a first space (not shown in the figure) with a preset height is enclosed by using a colloid 90 in a direction away from the substrate 10. Among them, the colloid 90 can be dam dotting. The specific data of the preset height can be set according to actual requirements. Then, liquid crystal is filled in the first space to form a first lens 31. One or more second electrodes 52 and a second insulating layer 72 are provided on the side of the first lens 31 away from the substrate 10. And the lens circuit 32 is electrically connected to one or more second electrodes 52 and the second conductive layer 62. Next, a first conductive layer 61 is provided on the side of the second insulating layer 72 away from the substrate 10. A second space (not shown in the figure) with a preset height is enclosed by using the colloid 90 on the side of the first conductive layer 61 away from the substrate 10, and a light dimming sheet 41 is provided in the second space. One or more first electrodes 51 and a first insulating layer 71 are provided on the side of the light dimming sheet 41 away from the substrate 10. And the light dimming circuit 42 is electrically connected to one or more first electrodes 51 and the first conductive layer 61. Finally, around the outer peripheral side of the first lens 31, an eye tracking module 20 and a current exchange terminal 80 are provided on the side of the substrate 10 close to the first lens 31, and the current exchange terminal 80 is electrically connected to the lens circuit 32, the light dimming circuit 42, and the eye tracking circuit 22. In this way, the optical component 100 with a thinner thickness is obtained.
[0066] Figures 2 to 4 For the optical component 100 shown, the first lens 31 and the light dimming sheet 41 are sequentially arranged in the first area 11 of the substrate 10, and the eye tracking module 20, the lens circuit 32, and the light dimming circuit 42 are arranged in the second area 12 to reduce the overall thickness of the optical component 100, which is convenient for the user to carry or improve the user's experience. At the same time, in order to realize the light dimming function of the light dimming sheet 41, a first electrode 51 and a first conductive layer 61 are respectively arranged on the opposite sides of the light dimming sheet 41, and both the first electrode 51 and the first conductive layer 61 are electrically connected to the light dimming circuit 42. In order to realize the deflection effect of the first lens 31, a second electrode 52 and a second conductive layer 62 are respectively arranged on the opposite sides of the first lens 31, and both the second electrode 52 and the second conductive layer 62 are electrically connected to the lens circuit 32. Finally, the current exchange terminal 80 is electrically connected to the lens circuit 32, the light dimming circuit 42, and the eye tracking module 20 to realize the functions of each module.
[0067] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.
Claims
1. An optical component, comprising a substrate, an eye tracking module, a lens module, a dimming module and a current exchange terminal, wherein the lens module includes a first lens and a lens circuit, and the dimming module includes a dimming sheet and a dimming circuit, characterized in that, The first lens and the dimming sheet are disposed on one side of the substrate. The first lens is disposed adjacent to the substrate. The lens circuit, the dimming circuit, and the eye tracking module are located on the side of the substrate close to the first lens, and the lens circuit, the dimming circuit, the eye tracking module, and the current exchange terminal are disposed around the outer peripheral side of the first lens. The eye tracking module is located on one side of the current exchange terminal, and the current exchange terminal is electrically connected to the lens circuit, the dimming circuit, and the eye tracking module.
2. The optical component according to claim 1, wherein, A first conductive layer is provided on the side of the dimming sheet close to the first lens, and one or more first electrodes are provided on the side of the dimming sheet away from the first lens. One or more of the first electrodes and the first conductive layer are both electrically connected to the dimming circuit.
3. The optical component according to claim 2, characterized in that, A first insulating layer is further provided on the side of the dimming sheet away from the first lens, and one or more of the first electrodes are disposed between the first insulating layer and the dimming sheet.
4. The optical component according to claim 2, wherein One or more second electrodes are provided on the side of the first lens close to the dimming sheet, and a second conductive layer is provided between the first lens and the substrate. One or more of the second electrodes and the second conductive layer are both electrically connected to the lens circuit.
5. The optical component according to claim 4, wherein A second insulating layer is further provided between the first conductive layer and the first lens, and one or more of the second electrodes are disposed between the second insulating layer and the first lens.
6. The optical component according to claim 1, wherein The eye tracking module includes an eye tracking component and an eye tracking circuit, and the eye tracking component is electrically connected to the eye tracking circuit.
7. The optical component according to claim 6, characterized in that The eye tracking component includes an eye tracking control member, an eye tracking acquisition member, and an infrared light source. The eye tracking control member is communicatively connected to the eye tracking acquisition member and the infrared light source.
8. The optical component according to claim 7, wherein, The infrared light source is an infrared light emitting diode.
9. A display device, characterized in that, It includes the optical component as described in any one of claims 1 to 8 and a second lens, and the optical component is disposed on one side of the second lens.
10. The display device according to claim 9, characterized in that, One or more first electrodes are provided on the side of the dimming sheet away from the first lens, and one or more second electrodes are provided on the side of the first lens close to the dimming sheet. The first electrode and the second electrode are both ITO electrodes.