TWI401498B - Flat display touch panel and fabricating method of the same - Google Patents

Description

Touch plane display panel and manufacturing method thereof

The present invention relates to a touch panel display panel and a method of fabricating the same, and more particularly to a touch panel liquid crystal display panel and a method of fabricating the same.

In today's consumer electronics market, touch panels are widely used in portable electronic products such as personal digital assistants (PDAs), mobile phones, and notebooks. Touch panel) is a data communication interface tool between the user and the electronic device. Since the design of electronic products is currently in the direction of light, thin, short and small, it is hoped to save the installation space of traditional input devices such as buttons, keyboards and mice in product design, especially in the tablet design with humanized design. Driven by demand, display devices with touch panels have gradually become one of the key components of various electronic products.

The touch panel is roughly classified into a resistive touch panel, a capacitive touch panel, an optical touch panel, an acoustic wave touch panel, and an electromagnetic touch panel according to different sensing methods. Capacitive touch panels have been widely used in electronic products because of their fast response time, high reliability, and high durability. Depending on the structure and manufacturing method, the capacitive touch panel can be roughly divided into externally mounted or integrated/in-cell (in-cell/in-cell). The externally mounted capacitive touch panel usually firstly forms the sensing series on an auxiliary substrate, and then attaches the auxiliary substrate on which the sensing series has been fabricated to the outer surface of the display, obviously The external touch panel will have a certain thickness. Compared with the external touch panel, the integrated/built-in touch panel is very beneficial to the thinning and light weight of the display.

FIG. 1A is a schematic cross-sectional view of a conventional integrated touch panel. Referring to FIG. 1 , the conventional integrated touch panel 100A is integrated into the fabrication of a color filter substrate. The conventional integrated touch liquid crystal display panel 100A is formed by sequentially forming a bridge metal layer 120, a protective layer OC1, a sensing circuit layer 130, and a protective layer OC2 on the outer surface of the substrate 110. Then, the black matrix BM, the red filter pattern R, the green filter pattern G, the blue filter pattern B, the protective layer OC3, the common electrode COM, and the spacer P1 are sequentially formed on the inner surface of the substrate 110. .

FIG. 1B is a schematic cross-sectional view of another conventional integrated touch panel. Referring to FIG. 1B , similar to the integrated touch panel 100A of FIG. 1A , the touch integrated touch panel 100B must also be turned over to the inner surface of the substrate 110 after performing four processes on the outer surface of the substrate 110 . The other side performs another 7 processes. The difference between the process of FIG. 1A and FIG. 1B is that the protective layer OC1 of FIG. 1A covers only a portion of the bridge metal layer 120, and the protective layer OC1 of FIG. 1B covers the outer surface of the substrate 110 and the bridge metal layer 120. The OC1 has a plurality of contact openings CW to expose a portion of the bridge metal layer 120, and the sensing circuit layer 130 is connected to the bridge metal layer 120 through the contact opening CW.

As described above, since the conventional integrated touch panels 100A and 100B are required to perform four processes on the inner surface of the substrate 110 before the substrate 110, and then on the inner surface of the substrate 110, another seven processes are performed. It is very easy to scratch or damage the components on the integrated touch panel 100A when turning over and performing different surface processes, thereby reducing the manufacturing yield of the integrated touch panel 100A.

The invention provides a touch liquid crystal display panel and a manufacturing method thereof, which can improve the yield of the touch liquid crystal display panel during production.

The invention provides a touch liquid crystal display panel, which comprises an array substrate, a touch color filter substrate and a liquid crystal layer. The touch color filter substrate comprises a substrate, a plurality of bridge wires, a plurality of color filter films and a sensing circuit layer. The substrate has an outer surface and an inner surface opposite the outer surface, wherein the distance from the outer surface to the array substrate is greater than the distance from the inner surface to the array substrate. A plurality of bridge wires are disposed on the outer surface, and the color filter films are arranged on the outer surface in an array of the plurality of contact openings, and the partial regions of the bridge wires are respectively contacted by two contacts The opening is exposed. The sensing circuit layer is disposed on the color filter film, and a portion of the sensing circuit layer is electrically connected to the bridge wire through the contact opening. In addition, the liquid crystal layer is disposed between the array substrate and the touch color filter substrate.

The invention also provides a touch liquid crystal display panel comprising an array substrate, a touch color filter substrate and a liquid crystal layer. The touch color filter substrate comprises a substrate, a sensing circuit layer, a plurality of color filter films and a plurality of bridge wires. The substrate has an outer surface and an inner surface opposite the outer surface, wherein the distance from the outer surface to the array substrate is greater than the distance from the inner surface to the array substrate. The sensing circuit layer is disposed on the outer surface, and the color filter film is arranged on the outer surface in an array to cover a portion of the sensing circuit layer. The color filter film has a plurality of contact openings, and the sensing portion of the sensing circuit layer is exposed. . The bridge wires are disposed on the color filter film, and each of the bridge wires is electrically connected to the portion of the sensing circuit layer via the two contact openings. In addition, the liquid crystal layer is disposed between the array substrate and the touch color filter substrate.

In an embodiment of the invention, the array substrate comprises an active device array substrate.

In an embodiment of the present invention, the outer surface of the substrate is divided into a touch area and a peripheral area, and the bridge wire, the color filter film, and the sensing circuit layer are located in the touch area, and the touch color filter The optical substrate further includes a plurality of peripheral lines disposed in the peripheral area, and the peripheral lines are electrically connected to the sensing circuit layer.

In an embodiment of the invention, the touch color filter substrate further includes a common electrode disposed on an inner surface of the substrate.

In one embodiment of the present invention, the touch color filter substrate further includes a plurality of spacers disposed on an inner surface of the substrate, wherein each of the spacers extends toward the array substrate and is in contact with the array substrate.

In an embodiment of the invention, the touch color filter substrate further includes a protective layer covering the sensing circuit layer.

In an embodiment of the invention, each of the color filter films has a width greater than a thickness of the substrate.

In an embodiment of the invention, the touch color filter substrate further includes a common electrode disposed on the inner surface, and the array substrate further includes a plurality of spacers, and each of the spacers is connected to the touch color filter. The light substrate extends and is in contact with the touch color filter substrate.

In an embodiment of the invention, the sensing circuit layer includes a plurality of first sensing series and a plurality of second sensing pads. Each of the first sensing series includes a plurality of first sensing pads and a plurality of bridge portions, and each of the bridge portions is respectively connected between two adjacent first sensing pads. In addition, each of the bridge wires is electrically connected to the two adjacent second sensing pads through the two contact openings located thereon, and the second sensing pads and the bridge wires form a plurality of second sensing series .

In one embodiment of the present invention, the touch color filter substrate further includes a patterned light shielding layer covering an edge of the color filter film, wherein the patterned light shielding layer has a plurality of pixel openings and the contact Each of the color filter films exposes one of the pixel openings, wherein the sensing circuit layer is disposed on the patterned light shielding layer, and the patterned light shielding layer is located in the touch region.

In an embodiment of the invention, the touch color filter substrate further includes a patterned light shielding layer covering the edge of the color filter film and the bridge wire, wherein the patterned light shielding layer has a plurality of pixel openings Each of the color filter films exposes one of the pixel openings.

The invention provides a method for manufacturing a touch liquid crystal display panel, which comprises the following steps. A substrate is provided having an outer surface and an inner surface opposite the outer surface. A plurality of bridging wires are formed on the outer surface. A plurality of array-arranged color filter films are formed on the outer surface, the color filter films having a plurality of contact openings, and partial regions of the bridge wires are respectively exposed by the two contact openings. A sensing circuit layer is formed on the color filter film, and a portion of the sensing circuit layer is electrically connected to the bridge wire through the contact opening. A liquid crystal layer is assembled between the inner surface of the substrate and an array of substrates.

The invention also provides a method for manufacturing a touch color filter substrate, which comprises the following steps. A substrate is provided having an outer surface and an inner surface opposite the outer surface. A sensing circuit layer is formed on the outer surface. A plurality of arrays of color filter films are formed on the outer surface to cover portions of the sensing circuit layers, the color filter films having a plurality of contact openings exposing portions of the sensing circuit layer. A plurality of bridging wires are formed on the color filter films, wherein each of the bridging wires is electrically connected to the portion of the sensing circuit layer via the two contact openings. A liquid crystal layer is assembled between the inner surface of the substrate and an array of substrates.

In an embodiment of the present invention, the outer surface of the substrate is divided into a touch area and a peripheral area, and the bridge wire, the color filter film, and the sensing circuit layer are located in the touch area, and the bridge wire is formed. At the same time, a plurality of peripheral lines are formed in the peripheral area, and the peripheral lines are electrically connected to the sensing circuit layer.

In an embodiment of the invention, a method for manufacturing a touch color filter substrate further includes forming a common electrode on an inner surface of the substrate.

In an embodiment of the present invention, a method for manufacturing a touch color filter substrate further includes forming a common electrode on an inner surface of the substrate, and forming a plurality of spacers on the common electrode, wherein each of the spacers is arrayed The substrate extends and is in contact with the array substrate.

In an embodiment of the invention, a method for manufacturing a touch color filter substrate further includes forming a protective layer on the sensing circuit layer.

In one embodiment of the present invention, a method for manufacturing a touch color filter substrate further includes forming a patterned light shielding layer on an edge of the color filter film and the bridge wire, wherein the patterned light shielding layer has a plurality of The pixel openings, each of the color filter films respectively expose one of the pixel openings.

In an embodiment of the invention, a method for manufacturing a touch color filter substrate further includes forming a protective layer on the color filter film and the bridge wire.

The present invention provides a touch panel display panel comprising an array substrate, a touch color filter substrate, and a display medium layer. The touch color filter substrate comprises a substrate, a plurality of bridge wires, a plurality of color filter films and a sensing circuit layer. The substrate has an outer surface and an inner surface opposite the outer surface, wherein the distance from the outer surface to the array substrate is greater than the distance from the inner surface to the array substrate. A plurality of bridge wires are disposed on the outer surface, and the color filter films are arranged on the outer surface in an array of the plurality of contact openings, and the partial regions of the bridge wires are respectively contacted by two contacts The opening is exposed. The sensing circuit layer is disposed on the color filter film, and a portion of the sensing circuit layer is electrically connected to the bridge wire through the contact opening. In addition, the display medium layer is disposed between the array substrate and the touch color filter substrate.

The invention also provides a touch panel display panel comprising an array substrate, a touch color filter substrate and a display medium layer. The touch color filter substrate comprises a substrate, a sensing circuit layer, a plurality of color filter films and a plurality of bridge wires. The substrate has an outer surface and an inner surface opposite the outer surface, wherein the distance from the outer surface to the array substrate is greater than the distance from the inner surface to the array substrate. The sensing circuit layer is disposed on the outer surface, and the color filter film is arranged on the outer surface in an array to cover a portion of the sensing circuit layer. The color filter film has a plurality of contact openings, and the sensing portion of the sensing circuit layer is exposed. . The bridge wires are disposed on the color filter film, and each of the bridge wires is electrically connected to the portion of the sensing circuit layer via the two contact openings. In addition, the display medium layer is disposed between the array substrate and the touch color filter substrate.

Based on the above, the present invention fabricates a sensing circuit layer, a bridge wire, and a color filter film on the outer surface of a single substrate to improve the scratch or damage caused by the flipping of the substrate, thereby improving the touch color filter. Manufacturing yield of the light substrate and the touch liquid crystal display panel.

The above described features and advantages of the present invention will be more apparent from the following description.

2 is a top view of a touch liquid crystal display panel according to an embodiment of the invention. Figure 3H is a cross-sectional view taken along line A-A' of Figure 2. Figure 4H is a cross-sectional view taken along line I-I' of Figure 2. Referring to FIG. 2, FIG. 3H and FIG. 4H, the touch liquid crystal display panel 200 of the present embodiment includes an array substrate 210, a touch color filter substrate 220, a liquid crystal layer 230, and a plurality of peripheral lines (not drawn Show). In this embodiment, the array substrate 210 is, for example, an active device array substrate. Generally, the active device array substrate includes an active device, a scan line, a data line, a pixel electrode, a storage capacitor, and the like. The touch color filter substrate 220 includes a substrate 222 (or a substrate), a plurality of bridge wires 224, a plurality of color filter films 226, a sensing circuit layer 228, a common electrode COM, and a plurality of spacers. P1, a protective layer OC1, and a patterned light shielding layer BM1. In addition, the liquid crystal layer 230 is disposed between the array substrate 210 and the touch color filter substrate 220, and the liquid crystal layer 230 is adapted to be controlled by voltage to change the orientation of the liquid crystal molecules therein.

The substrate 222 has an outer surface 222a and an inner surface 222b opposite to the outer surface 222a, and the distance from the outer surface 222a to the array substrate 210 is greater than the distance from the inner surface 222b to the array substrate 210. In addition, the outer surface 222a of the substrate 222 is divided into a touch area and a peripheral area (not shown), wherein the touch area is an area where the user can view and perform the touch action, and the bridge wire 224 and the color filter film 226 are formed. And the sensing circuit layer 228 is located in the touch area. The peripheral area is used to configure the peripheral circuit, wherein the peripheral circuit is connected to the sensing circuit layer 228 to transmit the sensing signal to the touch sensing integrated circuit (IC) at the back end. After receiving the sensing signal, the touch sensing integrated circuit can determine the touched position on the touch liquid crystal display panel 200. Generally, the peripheral lines are usually covered by the product casing of the touch liquid crystal display panel 200, and cannot be seen by the user.

In this embodiment, the bridge wires 224 are disposed directly on the outer surface 222a, and the color filter film 226 is also arrayed on the outer surface 222a. The color filter film 226 has a plurality of contact openings CW (as shown in FIG. 4H). And a partial area of each of the bridge wires 224 is exposed by the two contact openings CW, respectively. The sensing circuit layer 228 is disposed on the color filter film 226, and a portion of the sensing circuit layer 228 is electrically connected to the bridge wire 224 through the contact opening CW. The protective layer OC1 is overlaid on the sensing circuit layer 228. Further, the common electrode COM is disposed on the inner surface 222b of the substrate 222, and the spacer P1 is disposed on the common electrode COM, and each of the spacers extends in the direction of the array substrate 210 and is in contact with the array substrate 210.

As shown in FIG. 3H and FIG. 4H, in this embodiment, the bridge wires 224, the color filter film 226, and the sensing circuit layer 228 in the touch liquid crystal display panel 200 are formed on the same side of the substrate 222 to reduce the flipping of the substrate 222. The resulting scratching opportunity increases the manufacturing yield of the touch liquid crystal display panel 200.

It should be noted that in the touch color filter substrate 220, the common electrode COM, the protective layer OC1, and the patterned light shielding layer BM1 can be selectively formed according to the structural design and requirements, and it is not necessarily required to be fabricated. For example, when the touch liquid crystal display panel 200 is, for example, an In Plane Switching (IPS) liquid crystal display panel, the common electrode is formed on the array substrate 210 without being on the touch color filter substrate 220. A common electrode COM is fabricated. In addition, the protective layer OC1 and the patterned light shielding layer BM1 can be selectively fabricated on the touch color filter substrate 220 according to the design requirements of the product.

In addition, the spacer P1 may be formed by a yellow light lithography process, or may be sprinkled on the array substrate by a spherical spacer, and formed between the substrates 210 and 222 after being paired. In the above, the spacer P1 is not limited to be formed on the inner surface of the substrate 222, and may be formed on the array substrate 210. When the spacer P1 is formed on the array substrate 210, the spacer P1 is switched to the touch color filter. The substrate 220 extends and is in contact with the touch color filter substrate 220.

3A to 3H and 4A to 4H are schematic diagrams showing a manufacturing process of the touch liquid crystal display panel of FIG. 3A to 3H are cross-sectional views taken along line A-A' in Fig. 2. 4A to 4H are cross-sectional views taken along line I-I' of Fig. 2. Hereinafter, a method of manufacturing the touch liquid crystal display panel 200 will be described with reference to FIGS. 2, 3A to 3H, and 4A to 4H.

First, please refer to FIG. 2, FIG. 3A and FIG. 4A simultaneously, and provide a substrate 222 having an outer surface 222a and an inner surface 222b, wherein the inner surface 222b and the outer surface 222a are opposite surfaces of the substrate 222. The substrate 222 can be selected, for example, as a glass substrate, a quartz substrate, a plastic substrate, a tempered glass substrate, or other suitable substrate.

Then, a plurality of bridging wires 224 are formed on the outer surface 222a. In this embodiment, the material of the bridging wires 224 is, for example, a metal or a transparent conductive material, such as copper, aluminum, titanium, molybdenum, silver or gold, and transparent conductive. The material is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), etc., and may be a single layer or a multilayer stack of the foregoing materials. In addition, when the bridge wires 224 are formed, a plurality of peripheral lines are also formed in the peripheral region described above so that the peripheral lines can be electrically connected to the sensing circuit layer 228 formed later. In this embodiment, the material of the peripheral line may be selected from a metal or other material that is easily electrically conductive.

Next, referring to FIG. 2, FIG. 3B and FIG. 4B, a plurality of color filter films 226 arranged in an array are formed on the outer surface 222a, wherein the color filter films 226 have a plurality of contact openings CW. Only two contact openings CW are shown in this embodiment. The positions of the contact openings CW correspond to the two ends of the bridge wires 224, respectively, such that partial regions (both ends) of the bridge wires 224 are not covered by the color filter film 226 and are exposed by the contact openings CW.

In addition, the color filter film 226 of the present embodiment includes a red filter pattern R, a green filter pattern G, and a blue filter pattern B. However, the above-mentioned red, green, and blue filter patterns R, G, and B are only used to exemplify the color filter film 226 illustrated in the illustrated embodiment, and are not intended to limit the color filter pattern of the present invention. The color and number.

Next, referring to FIG. 2, FIG. 3C and FIG. 4C, a patterned light shielding layer BM1 is formed on the edge of the color filter film 226 and the bridge wire 224, wherein the patterned light shielding layer BM1 has a plurality of pixel openings WP1 ( As shown in FIG. 3C) and a plurality of the above-described contact openings CW, each of the color filter films 226 exposes one of the pixel openings WP1. The material of the light-shielding pattern layer BM1 is a light-shielding insulating material, for example, a black resin.

Then, referring to FIG. 2, FIG. 3D and FIG. 4D, a sensing circuit layer 228 is formed on the color filter film 226, and the two contact openings CW in FIG. 4C enable a portion of the sensing circuit layer 228 to pass through two contacts. The opening CW is electrically connected to the bridge wire 224. The sensing circuit layer 228 includes a plurality of sensing pads 228a and a plurality of first sensing series S1, and each sensing series S1 includes a plurality of sensing pads PAD and a plurality of bridge portions BR, wherein each bridge portion BR Connected between two adjacent sensing pads PAD. In addition, the sensing pad 228a and the bridge wire 224 constitute a second sensing series S2.

Next, referring to FIG. 2, FIG. 3E and FIG. 4E, a protective layer OC1 is formed on the sensing circuit layer 228 to protect the film covered by the protective layer OC1. After the protective layer OC1 is formed, the touch color filter substrate 220 is turned over to create the common electrode COM, as shown in FIGS. 2, 3F and 4F. In this embodiment, the material of the common electrode COM is, for example, Indium-Tin-Oxide (ITO), Indium Zinc Oxide (IZO), Aluminum Zinc Oxide (AZO), and aluminum tin oxide. (ATO), hafnium oxide (HfO), indium antimony zinc oxide (IGZO) or other suitable transparent materials. Of course, the present invention can also select the material of the common electrode according to the type of display panel to be formed later. The common electrode COM is formed on the touch color filter substrate 220 by sputtering, for example.

After the common electrode COM is formed, a plurality of spacers P1 (shown in FIGS. 2, 3G, and 4G) are selectively formed on the common electrode COM, wherein the spacers P1 extend toward the array substrate 210. After the touch color filter substrate 220 and the array substrate 210 are assembled, the liquid crystal layer 230 can be filled into the touch color through a known vacuum injection method or a one-drop filling process (ODF process). The filter substrate 220 is interposed between the substrate 220 and the array substrate 210. At this time, the spacer P1 on the touch color filter substrate 220 will be in contact with the array substrate 210 (as shown in FIGS. 2, 3H, and 4H).

As described above, in the manufacturing method of the touch liquid crystal display panel 200 of the present embodiment, only two of the touch color filter substrate 220 are turned over after the touch color filter substrate 220 is turned over. The process, that is, the common electrode COM and the spacer P1 are formed. Since the number of processes required after the flipping is smaller, the probability that the film is scratched is reduced, so that the manufacturing yield of the touch liquid crystal display panel 200 can be improved.

It should be noted that in other feasible embodiments, the touch liquid crystal display panel 200 does not need to form a common electrode COM (such as a planar switching type liquid crystal display panel) and the spacer P1. In addition, the protective layer OC1 and the patterned light shielding layer BM1 are not essential components for the touch color filter substrate 220.

In the above embodiment, the steps of FIG. 3F to FIG. 3H and FIG. 4F to FIG. 4H can be replaced by the steps of FIG. 5G to FIG. 5H and FIG. 6G to FIG. 6H respectively, that is, the spacers are formed on the array substrate 210. After P1 (Fig. 5G and Fig. 6G), the liquid crystal layer 230 is further filled between the touch color filter substrate 220 and the array substrate 210 (Fig. 5H and Fig. 6H).

FIG. 7 is a top view of a touch liquid crystal display panel according to another embodiment of the present invention. Figure 8H is a cross-sectional view taken along line A-A' of Figure 7. Figure 9H is a cross-sectional view taken along line I-I' of Figure 7. Referring to FIG. 7 , FIG. 8H and FIG. 9H , the touch liquid crystal display panel 700 of the embodiment further includes an array substrate 210 , a touch color filter substrate 220 , a liquid crystal layer 230 , and a plurality of peripheral lines (not Painted). The touch color filter substrate 220 also includes a substrate 222, a plurality of bridge wires 224, a plurality of color filter films 226, a sensing circuit layer 228, a common electrode COM, a plurality of spacers P1, and a protection. Layer OC1 and a patterned light shielding layer BM1. The touch liquid crystal display panel 700 of the present embodiment is different from the touch liquid crystal display panel 200 of the embodiment of FIG. 2 in that the structure of the touch color filter substrate 220 is different.

In the present embodiment, the sensing circuit layer 228 is disposed on the outer surface 222a. The sensing series S1 includes a plurality of sensing pads PAD and a plurality of bridging portions BR, and each sensing series S2 is composed of a plurality of sensing pads 228a and a plurality of bridging wires 224.

Color filter films 226 are arranged in an array on the outer surface to cover portions of the sensing circuitry layer 228, wherein the color filter film 226 has a plurality of contact openings CW such that portions of the sensing circuitry layer 228 are exposed. The bridge wires 224 are disposed on the color filter film 226, and each of the bridge wires 224 is electrically connected to the portion of the sensing circuit layer 228 via the two contact openings CW. The patterned light shielding layer BM1 covers the edge of the color filter film 226 and the bridge wire 224. The patterned light shielding layer CF1 has a plurality of pixel openings MP1, and each of the color filter films CF1 exposes one of the pixel openings MP1. In addition, the protective layer OC1 is overlaid on the sensing circuit layer 228. The components of the touch-screen liquid crystal display panel 700 are similar to those of the touch-control liquid crystal display panel 200 of the embodiment of FIG. 2, and those skilled in the art should be able to derive the teachings according to the above embodiments, and thus will not be described again.

As described above, the component structure of the touch liquid crystal display panel 700 of the present embodiment is different from that of the touch liquid crystal display panel 200, but the bridge wire 224, the color filter film 226, and the sensing circuit layer 228 are formed on the substrate 222. On the same side, the chance of scratching caused by the flipping of the substrate 222 can be reduced, thereby improving the manufacturing yield of the touch liquid crystal display panel 200.

8A to 8H and 9A to 9H are schematic diagrams showing a manufacturing process of the touch liquid crystal display panel of the embodiment of FIG. 7. 8A to 8H are cross-sectional views taken along line A-A' in Fig. 7. 9A to 9H are cross-sectional views taken along line I-I' in Fig. 7. Hereinafter, a method of manufacturing the touch liquid crystal display panel 700 will be described with reference to FIGS. 7 , 8A to 8H , and 9A to 9H .

First, referring to FIG. 7, FIG. 8A and FIG. 9A, a substrate 222 having an outer surface 222a and an inner surface 222b is provided, wherein the inner surface 222b and the outer surface 222a are opposite surfaces of the substrate 222. Thereafter, a sense line layer 228 is formed on the outer surface 222a.

Next, referring to FIG. 7 , FIG. 8B and FIG. 9B , a plurality of color filter films 226 arranged in an array are formed on the outer surface 222 a , wherein the color filter films 226 have a plurality of contact openings CW. In the present embodiment, only two contact openings CW are shown, and the positions of the two contact openings CW respectively expose a portion of the sensing circuit layer 228 (that is, the sensing pad 228a is close to the end portion of the bridge portion BR).

Next, referring to FIG. 7, FIG. 8C and FIG. 9C, a plurality of bridging wires 224 are formed on the color filter film 226, wherein each of the bridging wires 224 is electrically connected to the portion of the sensing circuit layer 228 via the two contact openings CW. connection. Similarly, when the bridge wires 224 are formed, a plurality of peripheral lines are also formed simultaneously in the peripheral region so that the peripheral lines can be electrically connected to the sensing line layer 228 formed later.

Next, referring to FIG. 7 , FIG. 8D and FIG. 9D , a patterned light shielding layer BM1 is formed on the edge of the color filter film 226 and the bridge wire 224 , wherein the patterned light shielding layer BM1 has a plurality of pixel openings MP1 ( As shown in FIG. 8D, each of the color filter films 226 exposes one of the pixel openings WP1. It should be noted that in other embodiments, the above-mentioned bridging wire 224 can also be fabricated with the patterned light-shielding layer BM1 composed of low-reflection chromium (Cr).

Thereafter, referring to FIG. 7, FIG. 8E and FIG. 9E, a protective layer OC1 is formed on the color filter film 226 and the bridge wire 224 to protect the film covered by the protective layer OC1. After forming the protective layer OC1, the touch color filter substrate 220 can be turned over to form the common electrode COM, the spacer P1, and the liquid crystal layer 230, as shown in FIG. ~ Figure 8H and Figure 9F ~ Figure 9H. The steps shown in FIG. 7, FIG. 8F, FIG. 8H, and FIG. 9F to FIG. 9H are the same as those of FIG. 2, FIG. 3F, FIG. 3H, and FIG. 4F to FIG. 4H, and therefore are not described again.

As described above, the manufacturing method of the touch liquid crystal display panel 700 of the present embodiment requires only two after the touch color filter substrate 220 is turned over. The process, that is, the common electrode COM and the spacer P1 are formed. Therefore, the probability that the film is damaged by scratches can be reduced, and the manufacturing yield when the liquid crystal display panel 700 is touched can be improved.

It should be noted that, in other feasible embodiments, the touch liquid crystal display panel 700 does not need to form a common electrode COM (such as a planar switching type touch liquid crystal display panel). In addition, the protective layer OC1 and the patterned light shielding layer BM1 are not essential components for the touch color filter substrate 220.

In the above embodiment, the steps of FIG. 8F to FIG. 8H and FIG. 9F to FIG. 9H may be replaced by the steps of FIG. 10G to FIG. 10H and FIG. 11G to FIG. 11H, respectively, after the spacer P1 is formed on the array substrate 210. (Fig. 10G and Fig. 11G), the liquid crystal layer 230 is further filled between the touch color filter substrate 220 and the array substrate 210 (Fig. 10H and Fig. 11H).

It is also noted that the width W1 of the single color filter film 226 is preferably designed to be larger than the thickness d1 of the substrate 222, so as to avoid the oblique leakage of the touch liquid crystal display panel in the above embodiment, as shown in FIG. A schematic view of a color filter film and a substrate.

In addition to the touch liquid crystal display panel described above, the present invention also provides other display medium layers to replace the liquid crystal layer to form a touch flat display panel. The detailed structure and manufacturing method are as described in the foregoing various embodiments, and therefore will not be described again. In addition to the liquid crystal layer described above, the display medium layer may be an electrophoretic display material layer, an organic light-emitting material layer or a plasma display material layer, but is not limited thereto.

In summary, the present invention utilizes a sensing circuit layer, a bridge wire, and a color filter film on the outer surface of a single substrate, which can improve the scraping caused by the flipping of the substrate during the process of manufacturing the touch panel display panel. Injury or damage, thereby improving the manufacturing yield of the touch color filter substrate and the touch panel display panel.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100A, 100B. . . Integrated touch panel

110, 222. . . Substrate

120. . . Bridge metal layer

130, 228. . . Sensing circuit layer

200, 700. . . Touch LCD panel

210. . . Array substrate

220. . . Touch color filter substrate

222b. . . The inner surface

222a. . . The outer surface

224. . . Bridge wire

226. . . Color filter film

228a, PAD. . . Sensing pad

230. . . Liquid crystal layer

OC1, OC2, OC3. . . The protective layer

BM. . . Black matrix

COM. . . Common electrode

P1. . . Interstitial

CW. . . Contact opening

BM1. . . Patterned shading layer

R, G, B. . . Filter pattern

WP1. . . Pixel opening

S1, S2. . . Sensing string

BR. . . Bridge

D1. . . Thickness of substrate

W1. . . The width of a single color filter film

FIG. 1A is a schematic cross-sectional view of a conventional integrated touch panel.

FIG. 1B is a schematic cross-sectional view of another conventional integrated touch panel.

2 is a top view of a touch liquid crystal display panel according to an embodiment of the invention.

3A to 3H and 4A to 4H are schematic diagrams showing a manufacturing process of the touch liquid crystal display panel of FIG.

5G to 5H and 6G to 6H are schematic diagrams showing a manufacturing process of a touch liquid crystal display panel according to another embodiment.

FIG. 7 is a top view of a touch liquid crystal display panel according to another embodiment of the present invention.

8A to 8H and 9A to 9H are schematic diagrams showing a manufacturing process of the touch liquid crystal display panel of FIG. 7.

10G to FIG. 10H and FIG. 11G to FIG. 11H are schematic diagrams showing a manufacturing process of a touch liquid crystal display panel according to another embodiment.

Figure 12 is a schematic view of a color filter film and a substrate.

210. . . Array substrate

220. . . Touch color filter substrate

226. . . Color filter film

230. . . Liquid crystal layer

222. . . Substrate

222a. . . The outer surface

222b. . . The inner surface

224. . . Bridge wire

228. . . Sensing circuit layer

OC1. . . The protective layer

P1. . . Interstitial

COM. . . Common electrode

BM1. . . Patterned shading layer

Claims (33)

A touch liquid crystal display panel includes: an array substrate; a touch color filter substrate, comprising: a substrate having an outer surface and an inner surface opposite to the outer surface, wherein the outer surface to the array substrate The distance is greater than the distance from the inner surface to the array substrate; a plurality of bridge wires are disposed on the outer surface; a plurality of color filter films are arranged on the outer surface, the color filter films having multiple contacts Opening, and a portion of each of the bridge wires is exposed by the two contact openings; a sensing circuit layer is disposed on the color filter films, and the sensing circuit layer passes through the contact openings and the bridge wires An electrical connection; and a liquid crystal layer disposed between the array substrate and the touch color filter substrate. The touch liquid crystal display panel of claim 1, wherein the array substrate comprises an active device array substrate. The touch liquid crystal display panel of claim 1, wherein the outer surface of the substrate is divided into a touch area and a peripheral area, the bridge wires, the color filter films, and the sensing circuit layer The touch color filter substrate further includes: a plurality of peripheral lines disposed in the peripheral area, and the peripheral lines are electrically connected to the sensing circuit layer. The touch-control liquid crystal display panel of claim 1, wherein the touch-sensitive color filter substrate further comprises: a common electrode disposed on the inner surface of the substrate. The touch-control liquid crystal display panel of claim 1, wherein the touch-sensitive color filter substrate further comprises: a plurality of spacers disposed on the inner surface of the substrate, wherein the spacers are directed to the array The substrate extends and is in contact with the array substrate. The touch-control liquid crystal display panel of claim 1, wherein the touch-sensitive color filter substrate further comprises: a protective layer covering the sensing circuit layer. The touch liquid crystal display panel of claim 1, wherein each of the color filter films has a width greater than a thickness of the substrate. The touch-control liquid crystal display panel of claim 1, wherein the touch-sensitive color filter substrate further comprises a common electrode disposed on the inner surface, and the array substrate further comprises a plurality of spacers, and Each of the spacers extends toward the touch color filter substrate and is in contact with the touch color filter substrate. The touch-sensing liquid crystal display panel of claim 1, wherein the sensing circuit layer comprises: a plurality of first sensing series, each of the first sensing series comprises: a plurality of first sensing pads a plurality of bridge portions, each of the bridge portions being respectively connected between two adjacent first sensing pads; and a plurality of second sensing pads, wherein each of the bridge wires respectively transmits through the two contact openings located thereon The two adjacent second sensing pads are electrically connected, and the second sensing pads and the bridge wires form a plurality of second sensing series. The touch-control liquid crystal display panel of claim 1, wherein the touch-sensitive color filter substrate further comprises: a patterned light-shielding layer covering edges of the color filter films, wherein the patterned light-shielding layer Having a plurality of pixel openings and the contact openings, each of the color filter films exposing one of the pixel openings, wherein the sensing circuit layer is disposed on the patterned light shielding layer, and the patterned light shielding layer is located Touch area. A touch liquid crystal display panel includes: an array substrate; a touch color filter substrate, comprising: a substrate having an outer surface and an inner surface opposite to the outer surface, wherein the outer surface to the array substrate The distance is greater than the distance from the inner surface to the array substrate; a sensing circuit layer is disposed on the outer surface; and a plurality of color filter films are arranged on the outer surface to cover a portion of the sensing circuit layer. The color filter film has a plurality of contact openings exposing a portion of the sensing circuit layer; a plurality of bridge wires are disposed on the color filter film, and each of the bridge wires is electrically connected to the sensing circuit layer via the two contact openings And a liquid crystal layer disposed between the array substrate and the touch color filter substrate. The touch liquid crystal display panel of claim 11, wherein the array substrate comprises an active device array substrate. The touch liquid crystal display panel of claim 11, wherein the outer surface of the substrate is divided into a touch area and a peripheral area, the bridge wires, the color filter films, and the sensing circuit layer The touch color filter substrate further includes: a plurality of peripheral lines disposed in the peripheral area, and the peripheral lines are electrically connected to the sensing circuit layer. The touch-control liquid crystal display panel of claim 11, wherein the touch-sensitive color filter substrate further comprises: a common electrode disposed on the inner surface of the substrate. The touch-control liquid crystal display panel of claim 11, wherein the touch-sensitive color filter substrate further comprises: a common electrode disposed on the inner surface of the substrate; and a plurality of spacers disposed on On the common electrode, each of the spacers extends toward the array substrate and is in contact with the array substrate. The touch-control liquid crystal display panel of claim 11, wherein the touch-sensitive color filter substrate further comprises: a protective layer covering the sensing circuit layer. The touch liquid crystal display panel of claim 11, wherein each of the color filter films has a width greater than a thickness of the substrate. The touch-control liquid crystal display panel of claim 11, wherein the touch-sensitive color filter substrate further comprises a common electrode disposed on the inner surface, and the array substrate further comprises a plurality of spacers, and Each of the spacers extends toward the touch color filter substrate and is in contact with the touch color filter substrate. The touch-control liquid crystal display panel of claim 11, wherein the sensing circuit layer comprises: a plurality of first sensing series, each of the first sensing series comprises: a plurality of first sensing pads And a plurality of bridge portions, each of the bridge portions being respectively connected between two adjacent first sensing pads; and a plurality of second sensing pads, wherein each of the bridge wires is adjacent to the second sensing second The second sensing pads and the bridge wires form a plurality of second sensing series. The touch-control liquid crystal display panel of claim 11, wherein the touch-sensitive color filter substrate further comprises: a patterned light-shielding layer covering the edges of the color filter films and the bridge wires, wherein The patterned light shielding layer has a plurality of pixel openings, and each of the color filter films exposes one of the pixel openings. A method for manufacturing a touch liquid crystal display panel, comprising: providing a substrate having an outer surface and an inner surface opposite to the outer surface; forming a plurality of bridging wires on the outer surface; forming on the outer surface a color filter film arranged in a plurality of arrays, the color filter films having a plurality of contact openings, wherein a portion of each of the bridge wires is exposed by two contact openings; and a sensing line is formed on the color filter films a circuit layer, wherein a portion of the sensing circuit layer is electrically connected to the bridge wires through the contact openings; and a liquid crystal layer is assembled between the inner surface of the substrate and an array substrate. The method for manufacturing a touch liquid crystal display panel according to claim 21, wherein the outer surface of the substrate is divided into a touch area and a peripheral area, the bridge wires, the color filter films, and the sense The circuit layer is located in the touch area, and at the same time as the bridge wires are formed, a plurality of peripheral lines are formed in the peripheral area, and the peripheral lines are electrically connected to the sensing circuit layer. The method for manufacturing a touch color filter substrate according to claim 21, further comprising: forming a common electrode on the inner surface of the substrate. The method for manufacturing a touch color filter substrate according to claim 21, further comprising: forming a common electrode on the inner surface of the substrate; and forming a plurality of spacers on the common electrode, wherein Each of the spacers extends toward the array substrate and is in contact with the array substrate. The method for manufacturing a touch color filter substrate according to claim 21, further comprising: forming a protective layer on the sensing circuit layer. A method for manufacturing a touch color filter substrate, comprising: providing a substrate having an outer surface and an inner surface opposite to the outer surface; forming a sensing circuit layer on the outer surface; Forming a plurality of arrays of color filter films on the surface to cover a portion of the sensing circuit layers, the color filter films having a plurality of contact openings exposing portions of the sensing circuit layers; and the color filter films Forming a plurality of bridge wires, wherein each of the bridge wires is electrically connected to a portion of the sensing circuit layer via two contact openings; and assembling a liquid crystal layer between the inner surface of the substrate and an array substrate. The method for manufacturing a touch color filter substrate according to claim 26, further comprising: forming a patterned light shielding layer on the edges of the color filter films and the bridge wires, wherein the patterning The light shielding layer has a plurality of pixel openings, and each of the color filter films exposes one of the pixel openings. The method for manufacturing a touch color filter substrate according to claim 26, wherein the outer surface of the substrate is divided into a touch area and a peripheral area, the bridge wires, the color filter films, and The sensing circuit layer is located in the touch area, and a plurality of peripheral lines are formed in the peripheral area while forming the bridge wires, and the peripheral lines are electrically connected to the sensing circuit layer. The method for manufacturing a touch color filter substrate according to claim 26, further comprising: forming a common electrode on the inner surface of the substrate. The method for manufacturing a touch color filter substrate according to claim 26, further comprising: forming a common electrode on the inner surface of the substrate; and forming a plurality of spacers on the common electrode, wherein Each of the spacers extends toward the array substrate and is in contact with the array substrate. The method for manufacturing a touch color filter substrate according to claim 26, further comprising: forming a protective layer on the color filter films and the bridge wires. A touch panel display panel includes: an array substrate; a touch color filter substrate, comprising: a substrate having an outer surface and an inner surface opposite to the outer surface, wherein the outer surface to the array substrate The distance is greater than the distance from the inner surface to the array substrate; a plurality of bridge wires are disposed on the outer surface; a plurality of color filter films are arranged on the outer surface, the color filter films having multiple contacts Opening, and a portion of each of the bridge wires is exposed by the two contact openings; a sensing circuit layer is disposed on the color filter films, and the sensing circuit layer passes through the contact openings and the bridge wires An electrical connection; and a display dielectric layer disposed between the array substrate and the touch color filter substrate. A touch panel display panel includes: an array substrate; a touch color filter substrate, comprising: a substrate having an outer surface and an inner surface opposite to the outer surface, wherein the outer surface to the array substrate The distance is greater than the distance from the inner surface to the array substrate; a sensing circuit layer is disposed on the outer surface; and a plurality of color filter films are arranged on the outer surface to cover a portion of the sensing circuit layer. The color filter film has a plurality of contact openings exposing a portion of the sensing circuit layer; a plurality of bridge wires are disposed on the color filter film, and each of the bridge wires is electrically connected to the sensing circuit layer via the two contact openings And a display medium layer disposed between the array substrate and the touch color filter substrate.