A hollow structure electrochromic lens
By adopting hollow structure and wiring ear design in electrochromic lenses, the positive and negative electrodes are drawn by conductive silver paste wire and bonding through OCA dry adhesive, the high cost of electrochromic lenses and lead fracture problems are solved, and the problem of improved The quality and maintenance of the lenses achieve faster color change and better aesthetics.
Patent Information
- Application Number
- CN202111319049.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-09
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2041-11-09
AI Technical Summary
The existing electrochromic lenses have high cost, and because the lead connection is prone to break and bubbles are easily generated during bonding, which affects the quality of the discolored film layer.
The electrochromic lens adopts hollow structure, and the wiring electrode is formed between the lower substrate and the upper cover plate, and the positive and negative electrodes are used to lead the positive and negative electrodes to the wiring electrodes, and bond them through OCA dry adhesive to avoid wire breakage and bubbles. The problem is to improve the connection stability of the conductive silver paste wire and facilitate maintenance.
It effectively avoids wire breakage and bubble problems, improves the quality and maintenance convenience of color-changing lenses, and improves the color-changing speed and aesthetics.
Smart Images
Figure CN113934067B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electrochromic lenses, and in particular to an electrochromic lens with a hollow structure. Background Art
[0002] At present, sunglasses, AR glasses, etc. are used as a kind of portable smart devices, often used indoors and outdoors. At present, AR glasses all use electrochromic lenses to shield the influence of external light on the imaging quality of AR glasses. Electrochromic lenses refer to the reversible color change property when a voltage is applied. The coloring and decolorization reaction of the electrochromic element is achieved by driving the voltage, and the original transparent and colorless lens is changed to a colored state after power is applied. Its structure is a multi-layer electrochemical device. When voltage is applied to the lens, the substance in the lens undergoes a reversible oxidation or reduction reaction, resulting in a color change phenomenon.
[0003] The current photochromic lenses are composed of a lower substrate layer and an upper cover layer bonded together to form a complete structure. The functional layer and transparent conductive layer for color change are located on the substrate. The substrate needs to be connected to the FPC module through leads to obtain the driving voltage. However, the current cost of electrochromic lenses is relatively expensive, and the leads need to be connected, which makes the leads easy to break. In addition, bubbles will be generated at the leads, causing water and oxygen to damage the color-changing film layer and affect the quality of the photochromic lenses. Summary of the invention
[0004] The purpose of the present invention is to provide an electrochromic lens with a central control structure, which has the advantage that the lead wire is not easy to break, solves the bubble problem at the lead wire during bonding, and provides convenience for subsequent repair of the wire breakage problem.
[0005] The above technical objectives of the present invention are achieved through the following technical solutions:
[0006] A hollow structure electrochromic lens, the electrochromic lens comprising a lower substrate and an upper cover plate, the lower substrate and one side of the upper cover plate are bonded to each other, a wiring ear is formed on the side of the electrochromic lens, a conductive silver paste line is printed on the side of the lower substrate facing the upper cover plate along the circumference of the lower substrate, the conductive silver paste line comprises a first lead-out silver paste line and a second lead-out silver paste line, one end of the first lead-out silver paste line and the second lead-out silver paste line both extend into the wiring ear, the lower substrate leads the positive and negative electrodes into the wiring ear through the conductive silver paste line, and the wiring ear is used to connect to an FPC module.
[0007] Further configuration: the wiring pole ear includes an upper pole ear and a lower pole ear, the upper pole ear is arranged on the side of the upper cover plate, the lower pole ear is arranged on the side of the lower substrate, the upper pole ear and the lower pole ear are in opposite positions and are connected by optical glue, and the conductive silver paste line extends to the side of the lower pole ear facing the upper pole ear and is connected to the FPC module.
[0008] Further configuration: the wiring tab includes a lower tab and a glue layer, the lower tab is arranged on the side of the lower substrate, the conductive silver paste line extends to the surface of the lower tab and is connected to the FPC module, and the glue layer is arranged on the side of the lower tab printed with the conductive silver paste line for fixing the FPC module.
[0009] It is further configured that the distance between the conductive silver paste line and the edge of the lower substrate is 100-1000 microns.
[0010] It is further configured that the width of the conductive silver paste line is 100-1000 microns.
[0011] Further configuration: the lower substrate includes a first transparent substrate layer, a first transparent electrode layer, an electrochromic layer, an ion conduction layer, an ion storage layer, a second transparent electrode layer and a second transparent substrate layer arranged in sequence, the second transparent substrate layer is connected to the upper cover plate, the conductive silver paste line is printed on the second transparent substrate layer, the first lead-out silver paste line is connected to the first transparent electrode layer, and the second lead-out silver paste line is connected to the second transparent electrode layer and the ion conduction layer.
[0012] Further configuration: the first lead-out silver paste line includes a first connecting section located in the lower substrate and a first lead-out section located in the wiring pole ear, the second lead-out silver paste line includes a second connecting section located in the lower substrate and a second lead-out section located in the wiring pole ear, the first connecting section and the first lead-out section form an angle of 72°-138°, and the second connecting section and the second lead-out section form an angle of 72°-138°.
[0013] It is further configured that a distance between the first lead-out section and the second lead-out section is 1-2 mm.
[0014] The invention has the following beneficial effects: the positive and negative electrodes in the lower substrate are led out to the wiring ears through the conductive silver paste line, and then connected to the FPC or other wires, and finally bonded to the upper cover plate using OCA dry glue. The wires led out by the wiring ears are not easy to break, and the upper cover plate and the lower substrate are not affected by the wires during the bonding process, thereby avoiding the generation of bubbles, etc., which cause water and oxygen to damage the color-changing film layer and affect the quality of the color-changing film. Moreover, the wiring ears are located on the side of the color-changing lens, which provides convenience for subsequent repair of the wire breakage problem. The first lead-out silver paste line is connected to the first transparent electrode layer, and the second lead-out silver paste line is connected to the second transparent electrode layer and the ion conduction layer to form two loops, which significantly improves the color change speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of Example 1;
[0016] Figure 2 is a schematic structural diagram of Example 2;
[0017] Figure 3 It is a schematic diagram of the structure of the lower substrate.
[0018] In the figure, 1, lower substrate; 2, upper cover plate; 3, first lead-out silver paste line; 31, first connecting section; 32, first lead-out section; 4, second lead-out silver paste line; 41, second connecting section; 42, second lead-out section; 5, lower pole ear; 6, upper pole ear; 101, first transparent substrate layer; 102, first transparent electrode layer; 103, electrochromic layer; 104, ion conduction layer; 105, ion storage layer; 106, second transparent electrode layer; 107, second transparent substrate layer. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with the accompanying drawings.
[0020] Embodiment 1:
[0021] like Figure 1 and Figure 3 As shown, a hollow structure electrochromic lens comprises a lower substrate 1 and an upper cover plate 2, wherein the lower substrate 1 and one of the surfaces of the upper cover plate 2 are bonded to each other, and a wiring ear is formed on the side of the electrochromic lens, and a conductive silver paste line is printed on the side of the lower substrate 1 facing the upper cover plate 2 along the circumference of the lower substrate 1, and the conductive silver paste line comprises a first lead-out silver paste line 3 and a second lead-out silver paste line 4, and one end of the first lead-out silver paste line 3 and the second lead-out silver paste line 4 both extend into the wiring ear, and the lower substrate 1 leads the positive and negative electrodes into the wiring ear through the conductive silver paste line, and the wiring ear is used to connect to the FPC module.
[0022] The wiring tabs include an upper tab 6 and a lower tab 5, wherein the upper tab 6 is disposed on the side of the upper cover plate 2, and the lower tab 5 is disposed on the side of the lower substrate 1, the upper tab 6 and the lower tab 5 are in facing positions and connected by optical glue, and the conductive silver paste line extends to the side of the lower tab 5 facing the upper tab 6 and is connected to the FPC module. The positive and negative electrodes in the lower substrate 1 are led out to the wiring ears through conductive silver paste lines, and then connected to FPC or other wires, and finally bonded together with the upper cover plate 2 using OCA dry glue. The wires led out by the wiring ears are not easy to break, and the upper cover plate 2 and the lower substrate 1 are not affected by the wires during the bonding process, thereby avoiding the generation of bubbles and the like that cause water and oxygen to damage the color-changing film layer and affect the quality of the color-changing film. Moreover, the wiring ears are located on the side of the photochromic lens, which provides convenience for subsequent repairs of wire breakage problems. When the electrochromic lenses are produced and installed on the glasses, the position of the wiring ears is opposite to the nose pad part of the frame, and the wiring ears extend into the nose pad part, which is convenient for wiring and hidden in the nose pad, and will not affect the appearance of the glasses. The lower substrate 1 includes a first transparent substrate layer 101, a first transparent electrode layer 102, an electrochromic layer 103, an ion conduction layer 104, an ion storage layer 105, a second transparent electrode layer 106 and a second transparent substrate layer 107 arranged in sequence. The first transparent electrode layer 102 and the second transparent electrode are preferably made of ITO; the ion storage layer is preferably NiO; the electrochromic layer 103 is preferably WO3; and the ion conduction layer 104 is preferably a lithium salt. The second transparent substrate layer 107 is connected to the upper cover plate 2, the conductive silver paste line is printed on the second transparent substrate layer 107, the first lead-out silver paste line 3 is connected to the first transparent electrode layer 102, and the second lead-out silver paste line 4 is connected to the second transparent electrode layer 106 and the ion conduction layer 104. The first lead-out silver paste line 3 includes a first connection section 31 located in the lower substrate 1 and a first lead-out section 32 located in the wiring ear. The second lead-out silver paste line 4 includes a second connection section 41 located in the lower substrate 1 and a second lead-out section 42 located in the wiring ear. The angle between the first connection section 31 and the first lead-out section 32 is 72°-138°, and the angle between the second connection section 41 and the second lead-out section 42 is 72°-138°. The angle between the first connection section 31 and the first lead-out section 32 and the angle between the second connection section 41 and the second lead-out section 42 are set to ensure that the electrode is led from the lower substrate 1 to the wiring ear, so that the current runs more smoothly along the line of the conductive silver paste line, and at the same time, it is convenient for the printing of the conductive silver paste line and reduces the difficulty of production. The spacing between the first lead-out section 32 and the second lead-out section 42 is 1-2mm, which reduces the reaction time and improves the reaction speed while ensuring that the positive and negative electrode signals do not interfere with each other.The spacing between the conductive silver paste line and the edge of the lower substrate 1 is 100-1000 microns, and is specifically set to 1000 microns in this embodiment. The setting of the spacing of 1000 microns preserves the main part of the electrochromic lens to prevent the conductive silver paste line from blocking the main part of the electrochromic lens, and when the electrochromic lens is produced and installed on the glasses, the conductive silver paste line part can be hidden in the frame, avoiding the conductive silver paste line from being exposed, ensuring the appearance. The width of the conductive silver paste line is 100-1000 microns.
[0023] Embodiment 2:
[0024] like Figure 2 and Figure 3 A hollow structure electrochromic lens, the electrochromic lens comprises a lower substrate 1 and an upper cover plate 2, the lower substrate 1 and one of the surfaces of the upper cover plate 2 are bonded to each other, a wiring ear is formed on the side of the electrochromic lens, a conductive silver paste line is printed on the side of the lower substrate 1 facing the upper cover plate 2 along the circumference of the lower substrate 1, the conductive silver paste line comprises a first lead-out silver paste line 3 and a second lead-out silver paste line 4, one end of the first lead-out silver paste line 3 and the second lead-out silver paste line 4 both extend into the wiring ear, the lower substrate 1 leads the positive and negative electrodes into the wiring ear through the conductive silver paste line, and the wiring ear is used to connect to an FPC module.
[0025] The wiring tab includes a lower tab 5 and a glue layer. The lower tab 5 is arranged on the side of the lower substrate 1. The conductive silver paste line extends to the surface of the lower tab 5 and is connected to the FPC module. The glue layer is arranged on the side of the lower tab 5 printed with the conductive silver paste line to fix the FPC module. After the color-changing film layer is plated on the lower substrate 1, the positive and negative electrodes are led to the tab through the conductive silver paste line, and then bonded together with the upper cover plate 2 through OCA dry glue, and then connected to the FPC or other wires, and finally fixed at the FPC or wire connection through the glue layer, which perfectly solves the problems of bubbles and breakages. At the same time, the glue fixation also ensures airtightness and isolates water and oxygen from invading the film layer. When the electrochromic lens is produced and installed on the glasses, the wiring tab is located opposite the nose pad of the frame. The wiring tab extends into the nose pad, which is convenient for wiring and hidden in the nose pad, and will not affect the appearance of the glasses. The lower substrate 1 includes a first transparent substrate layer 101, a first transparent electrode layer 102, an electrochromic layer 103, an ion conduction layer 104, an ion storage layer 105, a second transparent electrode layer 106 and a second transparent substrate layer 107 arranged in sequence. The first transparent electrode layer 102 and the second transparent electrode are preferably made of ITO; the ion storage layer is preferably NiO; the electrochromic layer 103 is preferably WO3; and the ion conduction layer 104 is preferably a lithium salt. The second transparent substrate layer 107 is connected to the upper cover plate 2, the conductive silver paste line is printed on the second transparent substrate layer 107, the first lead-out silver paste line 3 is connected to the first transparent electrode layer 102, and the second lead-out silver paste line 4 is connected to the second transparent electrode layer 106 and the ion conduction layer 104. The first lead-out silver paste line 3 includes a first connection section 31 located in the lower substrate 1 and a first lead-out section 32 located in the wiring ear. The second lead-out silver paste line 4 includes a second connection section 41 located in the lower substrate 1 and a second lead-out section 42 located in the wiring ear. The angle between the first connection section 31 and the first lead-out section 32 is 72°-138°, and the angle between the second connection section 41 and the second lead-out section 42 is 72°-138°. The angle between the first connection section 31 and the first lead-out section 32 and the angle between the second connection section 41 and the second lead-out section 42 are set to ensure that the electrode is led from the lower substrate 1 to the wiring ear, so that the current runs more smoothly along the line of the conductive silver paste line, and at the same time, it is convenient for the printing of the conductive silver paste line and reduces the difficulty of production. The spacing between the first lead-out section 32 and the second lead-out section 42 is 1-2mm, which reduces the reaction time and improves the reaction speed while ensuring that the positive and negative electrode signals do not interfere with each other.The spacing between the conductive silver paste line and the edge of the lower substrate 1 is 1 mm. The 1 mm spacing is set to keep the main part of the electrochromic lens as much as possible to avoid the conductive silver paste line from blocking the main part of the electrochromic lens. When the electrochromic lens is produced and installed on the glasses, the conductive silver paste line part can be hidden in the frame, avoiding the conductive silver paste line from being exposed, ensuring the appearance. The width of the conductive silver paste line is 1 mm.
[0026] The above-mentioned implementation modes do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-mentioned implementation modes shall be included in the protection scope of the technical solution.
Claims
1. A hollow structure electrochromic lens, characterized in that: The electrochromic lens comprises a lower substrate (1) and an upper cover plate (2), wherein the lower substrate (1) and one side of the upper cover plate (2) are bonded to each other, and a wiring ear is formed on the side of the electrochromic lens, and a conductive silver paste line is printed on the side of the lower substrate (1) facing the upper cover plate (2) along the circumference of the lower substrate (1), and the conductive silver paste line comprises a first lead-out silver paste line (3) and a second lead-out silver paste line (4), and one end of the first lead-out silver paste line (3) and the second lead-out silver paste line (4) both extend into the wiring ear, and the lower substrate (1) leads the positive and negative electrodes into the wiring ear through the conductive silver paste line, and the wiring ear is used to connect to the FPC module; The lower substrate (1) comprises a first transparent substrate layer (101), a first transparent electrode layer (102), an electrochromic layer (103), an ion conduction layer (104), an ion storage layer (105), a second transparent electrode layer (106) and a second transparent substrate layer (107) which are arranged in sequence, the second transparent substrate layer (107) is connected to the upper cover plate (2), the conductive silver paste line is printed on the second transparent substrate layer (107), the first silver paste lead-out line (3) is connected to the first transparent electrode layer (102), and the second silver paste lead-out line (4) is connected to the second transparent electrode layer (106) and the ion conduction layer (104); The first silver paste lead-out line (3) comprises a first connecting section (31) located in the lower substrate (1) and a first lead-out section (32) located in the wiring lug; the second silver paste lead-out line (4) comprises a second connecting section (41) located in the lower substrate (1) and a second lead-out section (42) located in the wiring lug; the first connecting section (31) and the first lead-out section (32) form an angle of 72°-138°, and the second connecting section (41) and the second lead-out section (42) form an angle of 72°-138°.
2. The hollow structure electrochromic lens according to claim 1, characterized in that: The wiring tabs include an upper tab (6) and a lower tab (5), wherein the upper tab (6) is arranged on the side of the upper cover plate (2), and the lower tab (5) is arranged on the side of the lower substrate (1), the upper tab (6) and the lower tab (5) are in facing positions and connected by optical glue, and the conductive silver paste line extends to the side of the lower tab (5) facing the upper tab (6) and is connected to the FPC module.
3. The hollow structure electrochromic lens according to claim 1, characterized in that: The wiring tab comprises a lower tab (5) and a glue layer, wherein the lower tab (5) is arranged on the side of the lower substrate (1), the conductive silver paste line extends to the surface of the lower tab (5) and is connected to the FPC module, and the glue layer is arranged on the side of the lower tab (5) where the conductive silver paste line is printed, and is used to fix the FPC module.
4. The hollow structure electrochromic lens according to claim 2 or 3, characterized in that: The distance between the conductive silver paste line and the edge of the lower substrate (1) is 100-1000 microns.
5. The hollow structure electrochromic lens according to claim 2 or 3, characterized in that: The width of the conductive silver paste line is 100-1000 microns.
6. The hollow structure electrochromic lens according to claim 1, characterized in that: The distance between the first lead-out section (32) and the second lead-out section (42) is 1-2 mm.