TWI662350B - Electrochromic panel - Google Patents

Abstract

An electrochromic panel includes a first substrate, a second substrate, and an electrochromic layer. The first substrate includes a first substrate having a first central region and a first non-central region, a first transparent conductive layer on the first substrate, a first insulating layer on the first transparent conductive layer, and a first auxiliary layer on the first insulation. On the floor. The first insulating layer has at least one first main contact hole in the first central area, and at least one first sub contact hole in the first non-central area. The first auxiliary layer is electrically connected to the first transparent conductive layer through at least one first main contact hole and at least one first sub-contact hole. The second substrate includes a second substrate and a second transparent conductive layer on the second substrate. The electrochromic layer is located between the first substrate and the second substrate.

Description

Electrochromic panel

The present invention relates to a panel, and in particular to an electrochromic panel.

Electrochromism means that under the action of an applied voltage or current, the optical properties of the electrochromic material in the visible wavelength range (such as light transmittance, reflectance, or absorbance) can produce reversible changes, thereby exhibiting Changes in color and transparency. Electrochromic technology can be applied to a variety of electronic products, such as smart dimming windows, anti-glare mirrors, etc.

Generally speaking, an electrochromic element includes a front substrate, a rear substrate opposite to the front substrate, a front electrode disposed on the front substrate, a rear electrode disposed on the rear substrate, and an electrochromic material sandwiched between the front and rear electrodes. Floor. When there is a sufficient voltage difference between the front and rear electrodes, the electrochromic material layer will undergo an electrochemical redox reaction to change its energy level, thereby becoming a dimming state. When the ambient light beam is transmitted to the electrochromic material layer, the ambient light beam is absorbed by the electrochromic material layer in a matte state. On the other hand, when there is substantially no voltage difference between the front and rear electrodes, the electrochromic material layer is light-transmissive. At this time, the ambient light beam passes through the layer of electrochromic material.

Since the electrochromic material layer undergoes a redox reaction by exchanging electrons, when it is applied to a large-sized panel, the surrounding area will change color first and the center area will not change color, and it will take a long time to drive. Energy and time consuming issues.

An electrochromic panel according to an embodiment of the present invention includes a first substrate, a second substrate, and an electrochromic layer between the first substrate and the second substrate. The first substrate includes a first substrate having a first central region and a first non-central region, a first transparent conductive layer on the first substrate, a first insulating layer on the first transparent conductive layer, and a first auxiliary layer on the first On the insulation. The first insulating layer has at least one first main contact hole in the first central area, and at least one first sub contact hole in the first non-central area. The first auxiliary layer is electrically connected to the first transparent conductive layer through at least one first main contact hole and at least one first sub-contact hole. The second substrate includes a second substrate and a second transparent conductive layer on the second substrate.

In an embodiment of the invention, the second substrate has a second central region and a second non-central region. The second substrate further includes a second insulating layer on the second transparent conductive layer, a second auxiliary layer on the second insulating layer, and a second metal layer between the second substrate and the second transparent conductive layer. The second insulating layer has at least one second main contact hole in the second central area, and at least one second sub contact hole in the second non-central area. The second auxiliary layer is electrically connected to the second transparent conductive layer through at least one second main contact hole and at least one second auxiliary contact hole.

In an embodiment of the present invention, a distribution density of the first primary contact hole is greater than a distribution density of the first secondary contact hole.

In an electrochromic panel according to an embodiment of the present invention, since it can pattern a first conductive layer to form a first main contact hole and a first sub contact hole, the first center region having a longer driving signal path is the first The resistance value of the auxiliary layer may be substantially the same as the resistance value of the first auxiliary layer in the first non-central region with the shorter driving signal path. In this way, the electrons driving the signals can move evenly between different regions, so that the entire color changing reaction of the electrochromic layer is uniform, so as to improve the overall color changing uniformity of the electrochromic panel. Therefore, the electrochromic panel of one embodiment of the present invention can be applied to smart dimming windows or anti-glare rearview mirrors. By adjusting the resistance values in different regions, the color changing efficiency of the electrochromic panel and the overall color changing uniformity are improved. Improve the performance of electrochromic panels even more.

One object of the present invention is to improve the uniformity of discoloration of an electrochromic panel.

One of the objects of the present invention is to improve the color changing efficiency of an electrochromic panel.

One of the objects of the present invention is to reduce the energy consumption of an electrochromic panel.

One of the objects of the present invention is to improve the performance of an electrochromic panel.

One of the objects of the present invention is to improve the light transmittance of an electrochromic panel.

One of the objects of the present invention is to improve the quality of an electrochromic panel.

One of the objects of the present invention is a large-sized electrochromic panel.

One of the objects of the present invention is to apply an electrochromic panel to a smart dimming window.

One of the objects of the present invention is to apply an electrochromic panel after anti-glare. glass.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

10, 10A, 10B, 20, 20A, 20B, 20C‧‧‧ Electrochromic panel

100, 100A, 100B, 100C‧‧‧First substrate

110‧‧‧first substrate

112‧‧‧First Central District

114‧‧‧First non-central area

120, 120C‧‧‧First metal layer

122, 122C‧‧‧The first mesh pattern

130‧‧‧ the first transparent conductive layer

140, 140A, 140B‧‧‧First insulation layer

142, 142A, 142B ‧‧‧ the first main contact hole

144, 144A, 144B‧‧‧ First contact hole

150‧‧‧The first auxiliary layer

160‧‧‧first drive circuit

170‧‧‧Frame glue

180‧‧‧ Spacer

200, 200A, 200B‧‧‧Second substrate

210‧‧‧ second base

212‧‧‧Second Central District

214‧‧‧Second Decentralized District

220‧‧‧Second metal layer

222‧‧‧Second mesh pattern

230‧‧‧ second transparent conductive layer

240‧‧‧Second insulation layer

242‧‧‧Second main contact hole

244‧‧‧second contact hole

250‧‧‧Second auxiliary layer

260‧‧‧Second driving circuit

300‧‧‧electrochromic layer

I-I’‧‧‧ hatch

T1‧‧‧thickness of the first metal layer

T2‧‧‧thickness of the second metal layer

T3‧‧‧thickness of the first insulating layer

FIG. 1 is a schematic top view of an electrochromic panel according to an embodiment of the present invention.

FIG. 2A is a schematic cross-sectional view of the electrochromic panel of FIG. 1 along a section line I-I '.

FIG. 2B is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention.

2C is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention.

FIG. 3 is a schematic top view of a first substrate of an electrochromic panel according to another embodiment of the present invention.

FIG. 4A is a partially enlarged top view of the first insulating layer of FIG. 1. FIG.

FIG. 4B is a partially enlarged schematic diagram of a first insulating layer according to another embodiment of the present invention.

FIG. 4C is a partially enlarged schematic diagram of a first insulating layer according to another embodiment of the present invention.

5A is a schematic cross-sectional view of an electrochromic panel according to still another embodiment of the present invention.

5B is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention.

5C is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention.

5D is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention.

FIG. 1 is a schematic top view of an electrochromic panel according to an embodiment of the present invention. For convenience of explanation and observation, some components are omitted in FIG. 1. FIG. 2A is a schematic cross-sectional view of the electrochromic panel of FIG. 1 along a section line I-I '. Please refer to FIGS. 1 and 2A. In this embodiment, the electrochromic panel 10 includes a first substrate 100, a second substrate 200, and an electrochromic layer 300. The electrochromic layer 300 is located on the first substrate 100 and the second substrate. Between 200.

The electrochromic panel of this embodiment can be applied as a smart dimming window or an anti-glare rearview mirror, but the invention is not limited thereto. The following will take smart dimming windows as an example. Referring to FIG. 1, the first substrate 100 includes a first substrate 110, a first transparent conductive layer 130, and a first insulating layer 140. The first substrate 110 has a first central region 112 and a first non-central region 114. In this embodiment, the first non-central area 114 substantially surrounds the first central area 112. The material of the first substrate 110 may be glass, quartz, organic polymers, opaque / reflective materials, or other applicable materials. The opaque / reflective materials are, for example, conductive materials, wafers, ceramics, or other materials. Applicable materials.

In this embodiment, the first transparent conductive layer 130 is located on the first substrate 110 and overlaps the first non-central region 114 and the first central region 112. In other embodiments, a metal layer may be selectively disposed between the first transparent conductive layer 130 and the first substrate 110, but the present invention is not limited thereto.

Please continue to refer to FIG. 1 and FIG. 2A. In this embodiment, the first insulating layer 140 is located on the first transparent conductive layer 130. For example, the first insulating layer 140 overlaps a portion of the first non-central region 114 and overlaps the entire first central region 112. The material of the first insulating layer 140 includes a silicon nitride film, a laminated body of a silicon nitride film and a silicon oxide film, or a combination thereof. In this embodiment, the thickness T3 of the first insulating layer 140 is 500Å to 5000Å, but the invention is not limited to this.

In this embodiment, at least one first main contact hole 142 is formed on the first insulating layer 140 in the first central region 112, and at least one first sub contact hole 144 is in the first non-central region 114. The number of the at least one first main contact hole 142 may be one or plural, and the number of the at least one first sub contact hole 144 may be one or plural. In this embodiment, the number of the at least one first main contact hole 142 is plural and the number of the at least one first sub contact hole 144 is plural, but the present invention is not limited thereto. For example, a plurality of first main contact holes 142 may be disposed in an array manner in the first central region 112, and a plurality of first sub contact holes 144 may surround the first main contact holes 142 and be disposed in a first non-central region. 114, but the present invention is not limited to this. The first main contact hole 142 and the first sub-contact hole 144 may expose the first transparent conductive layer 130.

In this embodiment, the first substrate 100 further includes a first auxiliary layer 150. The first auxiliary layer 150 is located on the first insulating layer 140 and is electrically connected to the first transparent conductive layer 130 through the first main contact hole 142 and the first auxiliary contact hole 144. For example, the first auxiliary layer 150 overlaps the first insulating layer 140 and fills the first main contact hole 142 and the first sub-contact hole 144 to electrically connect the first transparent conductive layer 130. The materials of the first transparent conductive layer 130 and the first auxiliary layer 150 include indium tin oxide, antimony doped tin oxide (ATO), fluorine doped tin oxide (FTO), antimony doped zinc oxide, fluorine doped Zinc oxide (FZO), tin oxide or polymer transparent conductive film, nano carbon material or nano silver wire transparent conductive film, metal mesh film, but the invention is not limited to this.

In the present embodiment, the electrochromic panel 10 further includes a second substrate 200 disposed with respect to the first substrate 100. The structure of the second substrate 200 and the first substrate 100 may The same or similar, but the invention is not limited thereto. In this embodiment, the second substrate 200 includes a second substrate 210 and a second transparent conductive layer 230 on the second substrate 210. The second substrate 210 has a second central region 212 and a second non-central region 214. For example, the second central area 212 and the second non-central area 214 may be respectively set to correspond to the first central area 112 and the first non-central area 114, but the present invention is not limited thereto. The material of the second substrate 210 may be the same as or similar to that of the first substrate 110, and details are not described herein.

In this embodiment, the second substrate 200 further includes a second insulating layer 240 on the second transparent conductive layer 230. The structure of the second insulating layer 240 may be similar to that of the first insulating layer 140. For example, the second insulating layer 240 overlaps a portion of the second non-central region 214 and overlaps the entire second central region 212. At least one second main contact hole 242 is formed on the second insulating layer 240 in the second central region 212, and at least one second sub contact hole 244 is in the second non-central region 214. The number of the at least one second main contact hole 242 may be one or more, and the number of the at least one second sub contact hole 244 may be one or more. In this embodiment, the number of the at least one second main contact hole 242 is plural and the number of the at least one second sub contact hole 244 is plural, but the present invention is not limited thereto. For example, a plurality of second main contact holes 242 may be arranged in an array in the second central area 212, and a plurality of second sub contact holes 244 may be arranged in the second non-central area around the second main contact holes 242. 214, but the present invention is not limited to this. The second main contact hole 242 and the second sub-contact hole 244 may expose the second transparent conductive layer 230. In addition, the second main contact hole 242 and the second auxiliary contact hole 244 may be respectively disposed corresponding to the first main contact hole 142 and the first auxiliary contact hole 144, but the present invention is not limited thereto.

In this embodiment, the second substrate 200 further includes a second auxiliary layer 250. The second auxiliary layer 250 is located on the second insulating layer 240 and is electrically connected to the second transparent conductive layer 230 through the second main contact hole 242 and the second auxiliary contact hole 244. For example, the second auxiliary layer 250 overlaps the second insulating layer 240 and fills the second main contact hole 242 and the second sub-contact hole 244 to electrically connect the exposed second transparent conductive layer 230.

Please refer to FIG. 1 and FIG. 2A at the same time. In this embodiment, the first substrate 100 and the second substrate 200 of the electrochromic panel 10 are disposed face to face. An electrochromic layer 300 and a sealant 170 are interposed between the first substrate 100 and the second substrate 200. For example, the sealant 170 is disposed on the first auxiliary layer 150 and substantially surrounds the electrochromic layer 300. The sealant 170 may have at least one opening (not labeled) as an injection port of the electrochromic material, but the invention is not limited thereto. In this embodiment, at least one gap 180 may be provided between the first substrate 100 and the second substrate 200 to support the first substrate 100 and the second substrate 200 and form a cell gap, but the present invention does not use This is limited. In other embodiments, the plurality of spacers 180 are dispersed between the first substrate 100 and the second substrate 200.

In this embodiment, the electrochromic panel 10 further includes a first driving circuit 160 disposed on the first substrate 100 and a second driving circuit 260 disposed on the second substrate 200, and are electrically connected to the first transparent conductive layer 130, respectively. And a second transparent conductive layer 230 to provide a driving signal. In this embodiment, the driving circuits 160 and 260 are respectively disposed on the first substrate 100 and the second substrate 200 and are located outside the sealant 170. However, the present invention is not limited thereto. In other embodiments, the driving circuits 160 and 260 may also be located in or overlapped with the frame rubber 170 to drive the circuit substrate with the gate (Gate on Array, GOA).

It is worth noting that, in this embodiment, the material of the electrochromic layer 300 includes an organic small molecule Viologen color changing material or a polymer-based polyaniline color changing material. Since the first transparent conductive layer 130 and the first auxiliary layer 150 and the second transparent conductive layer 230 and the second auxiliary layer 250 are substantially used as electrodes for driving the electrochromic layer 300, light transmission of the electrochromic layer 300 can be controlled. Rate to present a matte state or a transparent state, so that the electrochromic panel 10 can be applied as a smart dimming window and control the total amount of ambient light beams penetrating the electrochromic panel 10.

FIG. 4A is a partially enlarged top view of the first insulating layer of FIG. 1. FIG. Please refer to FIG. 2A and FIG. 4A. In this embodiment, the distribution density of the first main contact holes 142 of the first insulating layer 140 is greater than the distribution density of the first sub contact holes 144. The area may be selectively larger than that of the first auxiliary contact holes 144. For example, the total area of the first main contact hole 142 in the first central region 112 that exposes the first transparent conductive layer 130 is larger than that of the first sub contact hole 144 in the first non-central region 114 that exposes the first transparent conductive layer 130. Total area. That is, the total area of the first auxiliary layer 150 electrically connected to the first transparent conductive layer 130 through the first main contact hole 142 is larger than that of the first auxiliary layer 150 electrically connected to the first transparent layer through the first auxiliary contact hole 144. The areas of the conductive layers 130 are combined. As such, the resistance value of the first auxiliary layer 150 in the first central region 112 may be substantially the same as the resistance value of the first auxiliary layer 150 in the first non-central region 114. Thereby, the driving signals in the first auxiliary layer 150 can be uniformly transmitted to the electrochromic layer 300 in different regions, so that the entire color changing reaction of the electrochromic layer 300 is uniform, and the overall color changing uniformity of the electrochromic panel 10 is improved. In addition, the first auxiliary layer 150 is electrically connected to the first transparent conductive layer 130 through the first main contact hole 142 and the first auxiliary contact hole 144, which can also reduce the overall resistance value and the time for driving the electrochromic panel 10. The performance of the electrochromic panel 10 is further improved.

Similarly, in this embodiment, the distribution density and area of the second main contact holes 242 and the second auxiliary contact holes 244 of the second insulation layer 240 may be the same or similar to the first main contact holes 142 and these The distribution density and area of the first pair of contact holes 144 achieve substantially the same technical effects, which are not described herein.

It must be noted here that the following embodiments follow the component numbers and parts of the previous embodiments, in which the same reference numerals are used to indicate the same or similar components. For the description of parts that omit the same technical content, refer to the foregoing embodiments. The details are not repeated in the following embodiments.

FIG. 4B is a partially enlarged schematic diagram of a first insulating layer according to another embodiment of the present invention. Please refer to FIG. 2A, FIG. 4A, and FIG. 4B. The first insulating layer 140A of this embodiment is similar to the first insulating layer 140 of FIG. 4A. The main difference is that each of the first main contact holes 142A of the first insulating layer 140A The area is larger than that of each of the first auxiliary contact holes 144A. For example, the total area of the first main contact hole 142A in the first central region 112 that exposes the first transparent conductive layer 130 is greater than that of the first sub contact hole 144A in the first non-central region 114 that exposes the first transparent conductive layer 130. Total area. That is, the total area of the first auxiliary layer 150 electrically connected to the first transparent conductive layer 130 is greater than the total area of the first auxiliary layer 150 electrically connected to the first transparent conductive layer 130. In this way, the first insulating layer 140A can provide the same technical functions as those in the above embodiment. effect.

FIG. 4C is a partially enlarged schematic diagram of a first insulating layer according to another embodiment of the present invention. Please refer to FIG. 2A, FIG. 4A, and FIG. 4C. The first insulating layer 140B of this embodiment is similar to the first insulating layer 140 of FIG. 4A. The main difference is that at least one first main contact hole 142B of the first insulating layer 140B And the at least one first auxiliary contact hole 144B is in a grid shape, and the area of the first main contact hole 142B is larger than the area of the first auxiliary contact hole 144B. In this embodiment, the number of the at least one first main contact hole 142B may be one, and the number of the at least one first sub contact hole 144B may be one, but it is not limited thereto. For example, the total area of the first main contact hole 142B in the first central region 112 that exposes the first transparent conductive layer 130 is larger than that of the first sub contact hole 144B in the first non-central region 114 that exposes the first transparent conductive layer 130. Total area. That is, the total area of the first auxiliary layer 150 electrically connected to the first transparent conductive layer 130 is greater than the total area of the first auxiliary layer 150 electrically connected to the first transparent conductive layer 130. In this way, the first insulating layer 140B can provide the same technical effects as the above embodiments.

In short, compared to the conventional electrochromic panel, since the electrochromic panel 10 of this embodiment can form the first conductive layer 140, 140A, 140B and / or the second conductive layer 240 by patterning The main contact holes 142, 142A, 142B, the first auxiliary contact holes 144, 144A, 144B, the corresponding second main contact hole 242, and the corresponding second auxiliary contact hole 244. Therefore, the first auxiliary layer 150 in the first central region 112 The total area of the area in contact with the first transparent conductive layer 130 is greater than the total area of the area in which the first auxiliary layer 150 contacts the first transparent conductive layer 130 in the first non-central region 114. The total area of the area where the second auxiliary layer 250 contacts the second transparent conductive layer 230 in the second central region 212 is large. The total area of the areas where the second auxiliary layer 250 contacts the second transparent conductive layer 230 in the second non-central area 214. In this way, the resistance value of the first auxiliary layer 150 in the first central region 112 with a long driving signal path may be substantially the same as the resistance value of the first auxiliary layer 150 in the first non-central region 114 with a short driving signal path. . The resistance value of the second auxiliary layer 250 in the second central region 212 may be substantially the same as the resistance value of the second auxiliary layer 250 in the second non-central region 214. In this way, the driving signals of the electrons can be uniformly moved between different regions, so that the entire color changing reaction of the electrochromic layer 300 is uniform, so as to improve the overall color changing uniformity of the electrochromic panel 10. In addition, the first auxiliary layer 150 is electrically connected to the first transparent conductive layer 130 through the first main contact hole 142 and the first auxiliary contact hole 144, which can also reduce the overall resistance value and the time for driving the electrochromic panel 10. The performance of the electrochromic panel 10 is further improved. In addition, the electrochromic panel 10 of this embodiment can also be applied to a large-sized panel, such as a smart dimming window. By adjusting the resistance value of different regions, the color changing efficiency of the electrochromic panel 10 and the overall color uniformity are improved. The performance of the electrochromic panel 10 is further improved.

FIG. 2B is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention. FIG. 3 is a schematic top view of a first substrate of an electrochromic panel according to another embodiment of the present invention. Please refer to FIG. 1, FIG. 2A, FIG. 2B and FIG. 3. The electrochromic panel 10A of this embodiment is similar to the electrochromic panel 10 of FIG. 1 and FIG. 2A. The main difference is that the first substrate 100A further includes the first substrate 100A. The metal layer 120 is located between the first substrate 110 and the first transparent transparent conductive layer 130. For example, the first metal layer 120 is disposed on the first substrate 110 and overlaps the first non-central region 114 and the first central region 112. In this embodiment, the first metal layer 120 includes a first mesh pattern 122. That is In other words, the first metal layer 120 may be a metal mesh to reduce the resistance value of the first transparent conductive layer 130, further reduce the power consumption of the electrochromic panel 10A, and improve the color changing efficiency. However, the present invention is not limited thereto. In other embodiments, the first metal layer 120 may be disposed on the entire surface of the first substrate 110 and overlap the first non-central region 114 and the first central region 112.

In this embodiment, the total light transmission area of the first mesh pattern 122 accounts for 78% to 99% of the total area. In other words, the electrochromic panel 10A has excellent light transmittance. In this way, when the electrochromic panel 10A is applied to a smart dimming window, the resistance value of the transparent conductive layer 130 can be reduced at the same time without affecting the total amount of environmental light beams penetrating the electrochromic panel 10A, which further improves the electrochromic panel 10A Performance and quality.

2C is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention. Please refer to FIG. 2B and FIG. 2C. The electrochromic panel 10B of this embodiment is similar to the electrochromic panel 10A of FIG. 2B. The main difference is that the second substrate 200A further includes a second metal layer 220 on the second substrate 210 and Between the second transparent conductive layers 230. For example, the second metal layer 220 is disposed on the second substrate 210 and overlaps the second non-central area 214 and the second central area 212. In this embodiment, the second metal layer 220 includes a second mesh pattern 222. That is, the second metal layer 220 may be a metal mesh to reduce the resistance value of the second transparent conductive layer 230 and further reduce the power consumption of the electrochromic panel 10B. However, the present invention is not limited thereto. In other embodiments, the second metal layer 220 may be disposed on the entire surface of the first substrate 110 and overlap the second non-central area 214 and the second central area 212.

It is worth noting that in this embodiment, the thickness of the first metal layer 120 is T1, and the thickness of the second metal layer 220 is T2, where T1> T2, and 200Å T1 2000Å, 10Å T2 300Å. Since the thicknesses T1 and T2 of the metal layers 120 and 220 are very thin, and the metal layers 120 and 220 respectively include the mesh patterns 122 and 222, the light transmittance of the electrochromic panel 10B is not affected, and excellent light transmission can be maintained. The transmittance further improves the performance and quality of the electrochromic panel 10B. The materials of the first metal layer 120 and the second metal layer 220 include silver, chromium, black chromium, ruthenium, stainless steel, silicon, titanium, nickel, molybdenum, nickel chromium, inconel, indium, palladium, thallium, cobalt, and cadmium , Niobium, brass, bronze, tungsten, osmium, iridium, aluminum, aluminum alloy, hafnium, yttrium, zirconium, vanadium, manganese, iron, zinc, tin, lead, bismuth, antimony, rhodium, tantalum, copper, gold, platinum , A platinum group metal, or a combination thereof, but the present invention is not limited thereto.

In short, compared with the conventional electrochromic panel, since the electrochromic panel 10, 10A, 10B of this embodiment can pattern the first conductive layer 140 and / or the second conductive layer 240 to form the first The main contact hole 142, the first auxiliary contact hole 144, the second main contact hole 242, and the second auxiliary contact hole 244, so that the resistance value of the first auxiliary layer 150 in the first central region 112 with a longer driving signal path can be approximately the same The resistance value of the first auxiliary layer 150 in the first non-central region 114 with a shorter driving signal path. The resistance value of the second auxiliary layer 250 in the second central region 212 may be substantially the same as the resistance value of the second auxiliary layer 250 in the second non-central region 214. In this way, the driving signals of the electrons can be uniformly moved between different regions, so that the entire color changing reaction of the electrochromic layer 300 is uniform, so as to improve the overall color changing uniformity of the electrochromic panel 10. In addition, the electrochromic panels 10, 10A, and 10B of the present embodiment may further include a mesh pattern 122, The metal layers 120 and 220 of 222 further reduce the resistance values of the transparent conductive layers 130 and 230 and the auxiliary layers 150 and 250, reduce the energy consumption of the electrochromic panels 10, 10A, and 10B, and improve the discoloration efficiency, and reduce the driving electrochromism. Panels 10, 10A, and 10B, while maintaining excellent light transmittance, further improve the performance and quality of the electrochromic panels 10, 10A, and 10B. Therefore, the electrochromic panels 10, 10A, and 10B of this embodiment can be applied to large-sized panels, for example, smart dimming windows. By adjusting the resistance values of different regions, the electrochromic panels 10, 10A, and 10B can be improved. The color changing efficiency and the overall color changing uniformity further improve the performance of the electrochromic panels 10, 10A, and 10B.

In the following, the electrochromic panel of the present invention is applied as an example of an anti-glare rearview mirror, and the component numbers and parts of the foregoing embodiments are used. The same reference numerals are used to represent the same or similar components without repeating them.

5A is a schematic cross-sectional view of an electrochromic panel according to still another embodiment of the present invention. Please refer to FIG. 5A and FIG. 2A. The electrochromic panel 20 in this embodiment is similar to the electrochromic panel 10 in FIG. Between a transparent conductive layer 130 and the second substrate 200B includes a second metal layer 220 between the second substrate 210 and the second transparent conductive layer 230. The first metal layer 120 and the second metal layer 220 are respectively disposed on the entire surface of the first substrate 110 and the second substrate 210, and the first metal layer 120 overlaps the first non-center region 114 and the first center region 112. The two metal layers 220 overlap the second non-central area 214 and the second central area 212, but the invention is not limited thereto.

It is worth noting that, in this embodiment, the thickness T1 of the first metal layer 120 is greater than the thickness T2 of the second metal layer 220, and 200Å T1 2000Å, 10Å T2 300Å. The materials of the first metal layer 120 and the second metal layer 220 include silver, chromium, black chromium, ruthenium, stainless steel, silicon, titanium, nickel, molybdenum, nickel chromium, inconel, indium, palladium, thallium, cobalt, and cadmium , Niobium, brass, bronze, tungsten, osmium, iridium, aluminum, aluminum alloy, hafnium, yttrium, zirconium, vanadium, manganese, iron, zinc, tin, lead, bismuth, antimony, rhodium, tantalum, copper, gold, platinum , A platinum group metal, or a combination thereof, but the present invention is not limited thereto. In this way, when the electrochromic panel 20 is applied as an anti-glare rearview mirror, the ambient light beam can penetrate the second metal layer 220 having a very thin thickness, and be compared with the first metal having a thicker thickness compared to the second metal layer 220. The layer 120 reflects into the eyes of the user. The electrochromic panel 20 can make the color changing reaction of the entire electrochromic layer 300 uniform by adjusting the resistance values in different regions. In addition, by adjusting the light transmittance of the electrochromic panel 20, the intensity of the reflected light can be reduced, the generation of glare can be reduced, and the performance and quality of the electrochromic panel 20 can be improved. For example, when applied to a car rear-view mirror, the strong light irradiated by the rear vehicle passes through the rear-view mirror of the user's vehicle, which can avoid glare from reflected light to maintain driving safety. In addition, the metal layers 120 and 220 can further reduce the resistance of the transparent conductive layers 130 and 230 and the auxiliary layers 150 and 250, respectively, so as to reduce the energy consumption of the electrochromic panel 20 and improve the color changing efficiency, and reduce the driving of the electrochromic panel. 20 times, improving the performance and quality of the electrochromic panel 20.

5B is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention. Please refer to FIG. 5B and FIG. 5A. The electrochromic panel 20A of this embodiment is similar to the electrochromic panel 20 of FIG. 5A, the main difference is that the second substrate 200 is not Contains the second metal layer 220. For example, only one of the two substrates of the electrochromic panel 20A includes a metal layer. Therefore, in this embodiment, the ambient light beam can penetrate the electrochromic layer 300 from the second substrate 200 and be reflected by the first metal layer 120. In this configuration, the electrochromic panel 20A can obtain the same technical effects as those of the above-mentioned embodiment, and details are not described herein.

5C is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention. Please refer to FIG. 5C and FIG. 5A. The electrochromic panel 20B of this embodiment is similar to the electrochromic panel 20 of FIG. 5A. The main difference is that the first metal layer 120 of the first substrate 100A includes a first mesh pattern 122. The light-transmitting area of the first mesh pattern 122 accounts for 40% to 60% of the entire area, but the present invention is not limited thereto. In this embodiment, the ambient light beam can penetrate the extremely thin second metal layer 220 and be reflected by the first mesh pattern 122. With this configuration, the electrochromic panel 20B can obtain the same technical effects as the above embodiment. Not repeat them here.

5D is a schematic cross-sectional view of an electrochromic panel according to another embodiment of the present invention. Please refer to FIG. 5D and FIG. 5C. The electrochromic panel 20C of this embodiment is similar to the electrochromic panel 20B of FIG. 5C. The main difference is that the electrochromic panel 20C includes only one metal layer, and the metal layer includes a mesh. Pattern, the metal layer is located on the first substrate 110 or the second substrate 210. For example, the first metal layer 120C of the first substrate 100C includes the first mesh pattern 122C, and the light-transmitting area of the first mesh pattern 122C accounts for 40% to 60% of the total area, or it is the second The second metal layer (not shown) of the substrate 200 includes a second mesh pattern (not shown), and the light-transmitting area of the second mesh pattern accounts for 40% to 60% of the entire area, but the present invention Not limited to this. In this embodiment, the ambient light beam may penetrate the electrochromic layer 300 from the second substrate 200 and be reflected by the first mesh pattern 122C, or in another example, the ambient light beam may penetrate the electricity from the first substrate 100C. The color changing layer 300 is reflected by the second mesh pattern. With such a configuration, the electrochromic panel 20C can obtain the same technical effects as those of the above-mentioned embodiment, and details are not described herein.

In short, compared to the conventional electrochromic panels, the electrochromic panels 20, 20A, 20B, and 20C of the embodiment can be patterned to form the first conductive layer 140 and / or the second conductive layer 240 to form the first conductive layer. A primary contact hole 142, a first secondary contact hole 144, a second primary contact hole 242, and a second secondary contact hole 244. Therefore, the resistance value of the first auxiliary layer 150 in the first central region 112 with a longer driving signal path can be approximately The resistance value of the first auxiliary layer 150 in the first non-central region 114 having the shorter driving signal path is the same. The resistance value of the second auxiliary layer 250 in the second central region 212 may be substantially the same as the resistance value of the second auxiliary layer 250 in the second non-central region 214. In this way, the driving signals of the electrons can be uniformly moved between different regions, so that the entire color changing reaction of the electrochromic layer 300 is uniform, so as to improve the overall color changing uniformity of the electrochromic panels 20, 20A, 20B, and 20C. In addition, the electrochromic panels 20, 20A, 20B, and 20C of the embodiment can further reduce the transparent conductive layer 130 through the metal layers 120, 220 including the first mesh pattern 122, 122C, and / or the second mesh pattern. , 230, and the resistance values of the auxiliary layers 150 and 250 reduce the energy consumption of the electrochromic panels 20, 20A, 20B, and 20C and improve the discoloration efficiency, and reduce the time for driving the electrochromic panels 20, 20A, 20B, and 20.

The electrochromic panels 20, 20A, 20B, and 20C of the embodiment can also reduce the generation of glare, and further improve the performance of the electrochromic panels 20, 20A, 20B, and 20C. Performance and quality. Therefore, the electrochromic panels 20, 20A, 20B, and 20C of the embodiment can be applied to anti-glare mirrors or smart dimming windows. By adjusting the resistance values in different regions, the electrochromic panels 20, 20A, 20B, The color changing efficiency of 20C and the overall color changing uniformity further improve the performance of the electrochromic panels 20, 20A, 20B, and 20C.

In summary, the electrochromic panel according to an embodiment of the present invention can form the first main contact hole, the first sub contact hole, and the second through patterning the first conductive layer and / or the second conductive layer. The main contact hole and the second auxiliary contact hole, so the resistance value of the first auxiliary layer in the first central region with the longer driving signal path may be substantially the same as that of the first auxiliary layer in the first non-central region with the shorter driving signal path. resistance. The resistance value of the second auxiliary layer in the second central region may be substantially the same as the resistance value of the second auxiliary layer in the second non-central region. In this way, the electrons driving the signals can move evenly between different regions, so that the entire color changing reaction of the electrochromic layer is uniform, so as to improve the overall color changing uniformity of the electrochromic panel. In addition, the electrochromic panel of the embodiment can further reduce the resistance value of the transparent conductive layer through the metal layer and / or the metal layer including the mesh pattern, reduce the power consumption of the electrochromic panel and improve the color changing efficiency and reduce the driving. The time of the electrochromic panel, while maintaining excellent light transmittance or reflectivity, further improves the performance and quality of the electrochromic panel. Therefore, an electrochromic panel according to an embodiment of the present invention can be applied to a large-sized panel, such as a smart dimming window. By adjusting the resistance value of different regions, the color changing efficiency of the electrochromic panel is improved and the overall color changing is uniform. Performance, further improving the performance of electrochromic panels.

In addition, the electrochromic panel according to an embodiment of the present invention can also be adjusted by adjusting The light transmission area of the metal layer including the mesh pattern is increased, and the light transmittance of the electrochromic panel is improved, and the effect of providing a mirror is improved. Therefore, the electrochromic panel of one embodiment of the present invention can be applied to anti-glare rearview mirrors. By adjusting the resistance values in different regions, the color changing efficiency of the electrochromic panel and the overall uniformity of color changing can be improved, and the electrochromic can be further improved. Performance of color changing panel.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

Claims (14)

An electrochromic panel includes: a first substrate, including: a first substrate having a first central region and a first non-central region; a first transparent conductive layer on the first substrate; a first insulation The layer is located on the first transparent conductive layer, and has at least a first main contact hole located in the first central region, and at least a first secondary contact hole located in the first non-center region; and a first auxiliary layer located on the On the first insulating layer and electrically connected to the first transparent conductive layer through the at least one first main contact hole and the at least one first auxiliary contact hole; a second substrate including a second substrate and a second A transparent conductive layer is located on the second substrate; and an electrochromic layer is located between the first substrate and the second substrate. The electrochromic panel as described in item 1 of the patent application range, wherein the first substrate further includes a first metal layer between the first substrate and the first transparent conductive layer. The electrochromic panel as described in item 2 of the patent application range, wherein the first metal layer includes a first mesh pattern. The electrochromic panel as described in item 3 of the patent application scope, wherein the second substrate has a second central region and a second non-central region, and the second substrate further includes: a second insulating layer located on the second On the transparent conductive layer, and has at least one second main contact hole located in the second central area, and at least one second auxiliary contact hole located in the second non-center area; a second auxiliary layer is located on the second insulating layer, And electrically connect the second transparent conductive layer through the at least one second main contact hole and the at least one second auxiliary contact hole; and a second metal layer is located between the second substrate and the second transparent conductive layer . The electrochromic panel as described in item 4 of the patent application scope, wherein the second metal layer includes a second mesh pattern, wherein the total light transmission area of the first mesh pattern or the second mesh pattern accounts for its total 40% to 60% of the total area. The electrochromic panel as described in item 4 of the patent application scope, wherein the total light transmission area of the first mesh pattern accounts for 78% to 99% of the total area. The electrochromic panel as described in item 2 of the patent application scope, wherein the second substrate has a second central region and a second non-central region, and the second substrate further includes: a second insulating layer located on the second On the transparent conductive layer, and has at least one second main contact hole located in the second central area, and at least one second auxiliary contact hole located in the second non-center area; a second auxiliary layer is located on the second insulating layer, And electrically connect the second transparent conductive layer through the at least one second main contact hole and the at least one second auxiliary contact hole; and a second metal layer is located between the second substrate and the second transparent conductive layer , Where the thickness of the first metal layer is T1, the thickness of the second metal layer is T2, T1> T2 and 200Å

T1

2000Å, 10Å

T2

300Å, wherein the materials of the first metal layer and the second metal layer include silver, chromium, black chromium, ruthenium, stainless steel, silicon, titanium, nickel, molybdenum, nickel chromium, inconel, indium, palladium, osmium, Cobalt, cadmium, niobium, brass, bronze, tungsten, rhenium, iridium, aluminum, aluminum alloy, scandium, yttrium, zirconium, vanadium, manganese, iron, zinc, tin, lead, bismuth, antimony, rhodium, tantalum, copper, Gold, platinum, platinum group metals or combinations thereof. The electrochromic panel as described in item 1 of the patent application scope, wherein the at least one first main contact hole and the at least one first sub-contact hole are both plural. The electrochromic panel as described in item 8 of the patent application range, wherein the distribution density of the first main contact holes is greater than the distribution density of the first secondary contact holes. The electrochromic panel as described in item 9 of the patent application scope, wherein each of the first main contact hole and each of the first sub-contact holes have the same area. The electrochromic panel as described in item 8 of the patent application range, wherein the area of each first main contact hole is larger than the area of each first secondary contact hole. The electrochromic panel as described in item 1 of the patent scope, wherein the at least one first main contact hole and the at least one first auxiliary contact hole are both grid-like, and the area of the at least one first main contact hole Greater than the area of the at least one first secondary contact hole. The electrochromic panel as described in item 1 of the patent application scope further includes a first driving circuit and a second driving circuit electrically connected to the first transparent conductive layer and the second transparent conductive layer, respectively. The electrochromic panel as described in item 13 of the patent application scope, wherein the first non-center region substantially surrounds the first center region, and the material of the electrochromic layer includes a small organic molecule violet color-changing material or a polymer system A polyaniline color-changing material. The materials of the first transparent conductive layer and the first auxiliary layer include indium tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide, and fluorine-doped oxide Zinc, tin oxide, nano carbon material or nano silver wire, the material of the first insulating layer includes a layered body of silicon nitride, silicon oxide, silicon nitride and silicon oxide or a combination of the above, the thickness of the first insulating layer From 500Å to 5000Å, the electrochromic panel further includes: a sealant, substantially surrounding the electrochromic layer, and located between the first substrate and the second substrate; and a spacer, located on the first substrate With the second substrate.