CN101403830B - Touch-sensitive substrate, color filter substrate and touch-sensitive liquid crystal display - Google Patents

Abstract

The invention discloses a touch control substrate, a color filter substrate and a touch liquid crystal display. The color filter substrate includes a substrate, a plurality of patterned color filter layers and a plurality of sensing series. The substrate has a first surface and a second surface opposite to the first surface. The substrate has a plurality of display blocks arranged in an array, and there is a separation area between the display blocks. The patterned color filter layers are correspondingly arrayed on the display blocks on the first surface of the substrate. The sensing series are arranged on the second surface. The sensing series are electrically insulated from each other, and each sensing series includes a plurality of sensing pads, a plurality of bridge lines and a plurality of patterned conductive layers. Each bridging line connects two adjacent sensing pads. The patterned conductive layer is stacked with the sensing pad and electrically connected to the sensing pad, wherein the position of the patterned conductive layer corresponds to the separation area. The invention also provides a touch-sensitive liquid crystal display and a touch-sensitive substrate.

Description

Touch-sensitive substrate, color filter substrate and touch-sensitive liquid crystal display

technical field

The invention relates to a touch-sensitive substrate, and in particular to a touch-sensitive substrate capable of being integrated with a color filter substrate or a touch-sensitive liquid crystal display.

Background technique

With the rapid development and application of information technology, wireless mobile communication and information home appliances, in order to achieve more convenient, lighter and more humanized purposes, many information products have changed from traditional keyboard or mouse input devices to use A touch panel is used as an input device, and a touch display device is one of the most popular products nowadays.

Existing touch panels can be roughly classified into capacitive, resistive, and photosensitive types, among which capacitive touch panels are the mainstream products. If classified according to the structural composition, the touch panel can be divided into two categories: the added type and the integrated type. Color filter process) integration, and help to reduce the thickness of the overall product, in line with the trend of thinner products.

Specifically, the built-in capacitive touch panel can be structurally divided into a single-sided design that integrates a color filter layer and a touch sensing unit on one surface of a glass substrate, and a single-sided design that integrates a color filter layer and a touch sensing unit on two opposite surfaces of a glass substrate. Make the double-sided design of the color filter layer and the touch sensing unit separately. Although the double-sided design is easier to manufacture, it has limitations in thickness and resolution. Although the structure of the single-sided design is simpler than that of the double-sided design, it has the problems of complex process and resolution cannot be improved.

Generally speaking, in a touch panel with a double-sided design, the capacitive sensing layer is composed of a transparent conductive layer such as Indium Tin Oxide (ITO) and a film layer of an insulating material, for example. However, the thickness of the capacitive sensing layer easily affects the overall transmittance of the color filter substrate. Therefore, in order to increase the light transmittance of the above-mentioned double-sided touch panel, it is generally necessary to reduce the thickness of the conductive film layer (such as the above-mentioned ITO) forming the capacitive sensing layer. However, the above method will increase the sheet resistance of the conductive film layer in the capacitive sensing layer, and relatively reduce the transmission speed of the sensing signal. In addition, in the prior art, the touch panel with a single-sided design also faces the same problem.

In other words, how to moderately reduce the thickness of the conductive film layer without greatly increasing the sheet resistance value, so as to improve the touch characteristics and light transmittance of the touch panel, is actually a major issue to be overcome in the touch panel manufacturing technology. .

Contents of the invention

The object of the present invention is to provide a color filter substrate, which uses a plurality of patterned conductive layers to improve the sheet resistance value increased by reducing the thickness of the transparent conductive film, thereby providing better light transmittance.

Another object of the present invention is to provide a touch-sensitive liquid crystal display, which adopts the above-mentioned color filter substrate and can provide better display quality.

Another object of the present invention is to provide a touch-sensitive substrate, which similarly uses a plurality of patterned conductive layers to improve the sheet resistance value increased by reducing the thickness of the transparent conductive film, thereby providing better light transmittance.

To achieve the above object, the present invention provides a color filter substrate, which includes a substrate, a plurality of patterned color filter layers and a plurality of sensing series. The substrate has a first surface and a second surface opposite to the first surface, and the substrate has a plurality of display blocks arranged in an array, and partition areas between the display blocks. The patterned color filter layer array is arranged on the first surface, corresponding to the display area. The sensing series are arranged on the second surface. The sensing series are electrically insulated from each other, and each sensing series includes a plurality of sensing pads, a plurality of bridge lines and a plurality of patterned conductive layers. Each bridging line connects two adjacent sensing pads. The patterned conductive layer is stacked with the sensing pads and electrically connected to the sensing pads, wherein the position of the patterned conductive layer corresponds to the separation area between the display blocks.

The present invention further provides a touch-sensitive liquid crystal display, which includes a color filter substrate, a transistor array substrate and a liquid crystal layer. The color filter substrate includes a substrate, a plurality of patterned color filter layers and a plurality of sensing series. The substrate has a first surface and a second surface opposite to the first surface, and a plurality of display blocks arranged in an array are defined on the substrate, as well as separation areas between the display blocks. The patterned color filter layer array is arranged on the first surface of the substrate and corresponds to the display area. The sensing series are arranged on the second surface. The sensing series are electrically insulated from each other, and each sensing series includes a plurality of sensing pads, a plurality of bridge lines and a plurality of patterned conductive layers. Each bridging line connects two adjacent sensing pads. The patterned conductive layer is stacked with the sensing pads and electrically connected to the sensing pads, wherein the position of the patterned conductive layer corresponds to the separation area between the display blocks. The transistor array substrate is opposite to the first surface of the color array substrate. The liquid crystal layer is arranged between the color filter substrate and the transistor array substrate.

The present invention further provides a touch-sensitive substrate, which includes a substrate and a plurality of sensing series. The substrate has a plurality of display blocks arranged in an array. There is a partition area between the display blocks. Multiple sensing series are arranged on the substrate. Each sensing series is electrically insulated from each other, and each sensing series includes a plurality of sensing pads, a plurality of bridge lines and a plurality of patterned conductive layers. Each bridging line connects two adjacent sensing pads. The patterned conductive layer is stacked with the sensing pads and electrically connected to the sensing pads, wherein the position of the patterned conductive layer corresponds to the separation area between the display blocks.

In an embodiment of the present invention, the sensing series includes a plurality of first sensing series and a plurality of first sensing series. The first sensing series extend along a first direction, and the second sensing series extend along a second direction, wherein the first direction is substantially perpendicular to the second direction.

In an embodiment of the invention, the material of the sensing pad includes a transparent conductive material.

In an embodiment of the invention, the material of the bridging line is the same as that of the patterned conductive layer.

In an embodiment of the invention, the sheet resistance of the bridge lines is lower than that of the sensing pads.

In an embodiment of the invention, the sheet resistance of the patterned conductive layer is lower than that of the sensing pad.

In an embodiment of the invention, the materials of the bridge lines and the patterned conductive layers include metal.

In an embodiment of the present invention, the material of the bridging line and the patterned conductive layer includes a composite metal of titanium/aluminum/titanium.

In an embodiment of the invention, the patterned conductive layer is located between the substrate and the sensing pad.

In an embodiment of the invention, the sensing pad is located between the substrate and the patterned conductive layer.

In an embodiment of the invention, the color filter substrate further includes a black matrix layer. The black matrix layer is configured on the first surface and located between the patterned color filter layers.

In an embodiment of the present invention, each patterned conductive layer is a strip patterned conductive layer.

In an embodiment of the present invention, each patterned conductive layer is a mesh patterned conductive layer.

In an embodiment of the invention, the area of each sensing pad is larger than the area of each patterned color filter layer.

To sum up, the touch-sensitive color filter substrate of the present invention can not only improve the problem of excessive sheet resistance, but also enable touch-sensitive The color filter substrate can provide better light transmittance.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

FIG. 1A shows a partial top view of a color filter substrate according to an embodiment of the present invention;

Figure 1B is a schematic cross-sectional view of the color filter substrate shown along the line AA' in Figure 1A;

FIG. 1C is a schematic diagram of an equivalent circuit of the partial region 150 in FIG. 1B ;

2A-2B are partial top views of color filter substrates in different implementation forms of the present invention;

FIG. 3 shows a partial top view of a color filter substrate according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of a touch-sensitive liquid crystal display according to an embodiment of the present invention;

FIG. 5 is a partial top view of a touch-sensitive substrate of the present invention.

Among them, reference signs:

100, 100a, 100b, 200, 310: color filter substrate

110, 410: Substrate

112: First Surface

114: second surface

120: Patterned color filter layer

122, 412a: separate areas

124, 412: display block

130, 420: sensing serial

130a, 420a: first sensing series

130b, 420b: second sensing series

131a, 421a: first direction

131b, 421b: second direction

132, 422: Sensing pads

132a: Current

134, 424: bridge line

136, 426: patterned conductive layer

140: black matrix layer

150: local area

300: touch LCD display

320: transistor array substrate

330: liquid crystal layer

400: Touch-sensitive substrate

Detailed ways

first embodiment

FIG. 1A shows a partial top view of a color filter substrate according to an embodiment of the present invention, and FIG. 1B is a schematic cross-sectional view of the color filter substrate shown along line AA' in FIG. 1A , wherein the color filter substrate shown in FIG. 1A The dotted line area is a perspective view of the first surface of the color filter substrate. In addition, for the convenience of illustration, FIG. 1A mainly shows a schematic diagram of a display block, a patterned color filter layer, a separation area, and a sensing series, while omitting other parts. possible layers. Comparing FIG. 1A and FIG. 1B at the same time, it can be known that the color filter substrate 100 is a double-sided design structure of the touch-sensitive color filter substrate. The structure of the color filter substrate 100 will be described in detail below.

Please refer to FIG. 1A and FIG. 1B at the same time. The color filter substrate 100 of this embodiment includes a substrate 110 , a plurality of patterned color filter layers 120 and a plurality of sensing series 130 . In this embodiment, the substrate 110 has a first surface 112 and a second surface 114 opposite to the first surface 112, and the substrate 110 has a plurality of display blocks 124 arranged in an array, wherein between these display blocks 124 There is a separation area 122 (or called a display separation area), as shown in FIG. 1A . In this embodiment, the material of the substrate 110 can be selected from inorganic transparent materials (such as: glass, quartz, or other appropriate materials) or organic transparent materials (such as: polyolefins, polyols, polyalcohols, polyesters, etc.) class, rubber, thermoplastic polymers, thermosetting polymers, polyaromatic hydrocarbons, polymethyl methacrylates, polycarbonates, or other suitable materials). In this embodiment, the substrate 110 is used as a base in the color filter substrate 100 , and an inorganic transparent glass is used as an example, but the present invention is not limited thereto.

In addition, the patterned color filter layer 120 (or referred to as the color filter layer block) is arrayed on the first surface 112 of the substrate 110 and corresponds to the display block 124, as shown in FIG. 1A and FIG. 1B . In general, in order to prevent the light passing through the patterned color filter layer 120 from leaking in the separation region 122 , a light-shielding material is usually disposed on the separation region 122 to improve the contrast of the color filter substrate 100 when displayed. Therefore, in this embodiment, the color filter substrate 100 may further include a black matrix layer 140, and the black matrix layer 140 is disposed on the first surface 112 of the substrate 110 and located on the separation region 122, as shown in FIG. 1B . In another embodiment, the patterned color filter layer 120 can also cross over the black matrix layer 140 in the separation area 122 . That is to say, the color filter substrate 100 can form a plurality of patterned color filter layers 120 arranged in an array on the display area 124 of the first surface 112 of the substrate 110, and the patterned color filter layers 120 span to the separation area 122, stacked on the black matrix layer 140, as shown in FIG. 1B. In a variant embodiment, the black matrix layer 140 may not be arranged on the separation area 122, for example, it is replaced by a stack of patterned color filter layers 120 in red, green, and blue colors. In this way, only the black matrix layer 140 on the first surface 112 A patterned color filter layer 120 is formed.

It can be seen from FIG. 1B that the black matrix layer 140 partially overlaps two adjacent patterned color filter layers 120 . In terms of process, the black matrix layer 140 can be formed on the first surface 112 of the substrate 110 first, and then the patterned color filter layer 120 can be formed on the first surface 112 of the substrate 110 . However, in another embodiment, according to process considerations or designer's needs, it is also possible to form the patterned color filter layer 120 on the substrate 110 first, and then form the black matrix layer 140 on the substrate 110 to cover part of the patterned The color filter layer 120 enables the color filter substrate 100 to provide good display contrast. Therefore, the above arrangement relationship between the patterned color filter layer 120 and the black matrix layer 140 is only for illustration, but not limited thereto.

In addition, the sensing series 130 is arranged on the second surface 114 of the substrate 110 , as shown in FIG. 1A and FIG. 1B . The sensing series 130 are electrically insulated from each other, and each sensing series 130 includes a plurality of sensing pads 132 , a plurality of bridge lines 134 and a plurality of patterned conductive layers 136 . Each bridge line 134 connects two adjacent sensing pads 132 . The patterned conductive layer 136 overlaps with the sensing pad 132 (for example, the patterned conductive layer 136 is disposed under or above the sensing pad 132), and is electrically connected to the sensing pad 132, wherein the patterned conductive layer 136 The location corresponds to the partition area 122 between the display blocks 124, as shown in FIG. 1A and FIG. 1B.

For example, the sensing series 130 of this embodiment includes a plurality of first sensing series 130a and a plurality of second sensing series 130b, wherein the first sensing series 130a and the second sensing series 130b electrically insulated from each other. The first sensing series 130a extends along a first direction 131a. The second sensing series 130b extends along a second direction 131b. In this embodiment, the first direction 131a is substantially perpendicular to the second direction 131b. In other embodiments, the user can make the corresponding first direction and second direction have other directions according to different designs of the first sensing series 130a and the second sensing series 130b, the above is By way of example, the invention is not limited thereto.

In addition, the sensing pad 132 may be a transparent conductive material using a single-layer or multi-layer structure. For example, the sensing pad 132 is made of indium tin oxide, indium zinc oxide, or other suitable materials. In this embodiment, indium tin oxide is used as an example of the sensing pad 132 , but it is not limited thereto.

In this embodiment, the material used for the bridging line 134 and the patterned conductive layer 136 may be the same, and the material of both may be a metal with a single-layer or multi-layer structure. For example, the material of the bridging line 134 and the patterned conductive layer 136 is silver, copper, tin, lead, hafnium, tungsten, molybdenum, neodymium, titanium, tantalum, aluminum, zinc and other metals, or other suitable materials. In this embodiment, titanium/aluminum/titanium multilayer metal is used as an example of implementing the bridging lines 134 and the patterned conductive layer 136 , but it is not limited thereto. Since the bridging line 134 is relatively short, it can also be replaced by a single-layer or multi-layer transparent conductive material. For example, alternative materials for the bridging lines 134 are, for example, indium tin oxide, indium zinc oxide, or other suitable materials. In addition, a multi-layer structure of metal and transparent conductive material can also be used instead.

In addition, FIG. 1C is a schematic diagram of an equivalent circuit of the partial region 150 in FIG. 1B , wherein the resistor R1 including the sensing pad 132 and the resistor R2 including the patterned conductive layer 136 are an equivalent parallel circuit. Please refer to FIG. 1B and FIG. 1C at the same time. In this embodiment, if the color filter substrate 100 can provide better light transmittance, it can be achieved by reducing the thickness of the sensing pad 132. However, the thickness of the sensing pad 132 The reduced thickness will increase the overall resistance of the sensing series 130 . Therefore, the color filter substrate 100 configures the patterned conductive layer 136 between the substrate 110 and the sensing pad 132, and the patterned conductive layer 136 is located on the separation area 122 between the display blocks 124, and is stacked with the sensing pad 132 , as shown in FIGS. 1B and 1C , to reduce the overall resistance value of the sensing series 130 .

～1300

，或低于500

。在本实施例中，图案化导电层136的片电阻值与感测垫132的片电阻值比介于1:10～1:2000之间，因此感测垫132与图案化导电层136两者的等效片电阻值可以低于单一感测垫132的片电阻值。如此一来，当使用者接触彩色滤光基板100时，感测垫132被驱动时所产生的电流132b，便适于大部分地通过图案化导电层136进行传递，如图1C所绘示，进而降低因缩减感测垫132的厚度而增加的感测串行130的整体电阻值。In this embodiment, the sheet resistance of the patterned conductive layer 136 is lower than that of the sensing pad 132 . For example, when the patterned conductive layer is titanium/aluminum/titanium multilayer metal, and the sensing pad 132 is indium tin oxide, wherein the thickness of indium tin oxide is, for example, between 500

~1300

, or below 500

. In this embodiment, the ratio of the sheet resistance value of the patterned conductive layer 136 to the sheet resistance value of the sensing pad 132 is between 1:10 and 1:2000, so both the sensing pad 132 and the patterned conductive layer 136 The equivalent sheet resistance value of may be lower than that of a single sensing pad 132 . In this way, when the user touches the color filter substrate 100, the current 132b generated when the sensing pad 132 is driven is suitable to be mostly transmitted through the patterned conductive layer 136, as shown in FIG. 1C, Furthermore, the overall resistance value of the sensing series 130 increased by reducing the thickness of the sensing pad 132 is reduced.

In addition, since the materials used for the bridge lines 134 and the patterned conductive layer 136 can be the same, and both materials are, for example, single-layer or multi-layer metal, the sheet resistance of the bridge lines 134 can also be lower than The sheet resistance value of the sensing pad 132 can also partially reduce the overall resistance value of the sensing series 130 increased by reducing the thickness of the sensing pad 132 .

It is worth mentioning that, in another non-illustrated embodiment, the sensing pad 132 may be located between the substrate 110 and the patterned conductive layer 136 . That is to say, the patterned conductive layer 132 can not only be disposed under the sensing pad 132 , but also be disposed above the sensing pad 132 to achieve the above effects.

In addition, in this embodiment, each patterned conductive layer 136 is a strip patterned conductive layer, as shown in FIG. 1A . In other unillustrated embodiments, according to user's design requirements, the shape of the patterned conductive layer 136 can be a circle or other geometric figures.

In addition, the patterned conductive layer 136 is disposed on the second surface 114, and the area ratio of the partition area may be 1%-99%. Preferably, the width of the patterned conductive layer 136 is half of the width of the black matrix layer 140 . For example, if the width of the black matrix is 30 μm, the width of the patterned conductive layer 136 is preferably 15 μm. In addition, when the color filter substrate 100 is not configured with the black matrix layer 140 , the patterned conductive layer 136 disposed on the second surface 114 of the separation region 122 can be used for light shielding. At this time, the area ratio of the patterned conductive layer 136 disposed on the separation region 122 can be the same as the above-mentioned configuration method, or it can be determined according to the user's design. Preferably, the configuration method can mainly avoid the problem of light leakage, thereby improving the color filter. The display quality of the optical substrate 100.

It is worth mentioning that the above-mentioned patterned conductive layer 136 is disposed above or below the sensing pad. In one embodiment, the patterned conductive layer 136 can be further disposed on the separation area of the first surface as a For shading.

Based on the above, the patterned conductive layer 136 can not only improve the problem of high resistance caused by increasing the light transmittance of the color filter substrate 100 , but also serve as a black matrix layer as a light-shielding layer to improve display contrast.

In addition, the patterned conductive layer 136 disposed on the second surface 114 of the substrate 100 can be implemented in various manners, and two examples are given below to illustrate.

2A-2B are partial top views of color filter substrates in different embodiments of the present invention. Please refer to FIG. 1A and FIG. 2A first, the color filter substrate 100 a is similar in structure to the color filter substrate 100 , and the same components are marked with the same symbols. The difference between the two is that the patterned conductive layer 136 of the color filter substrate 100a is arranged on the second surface 114 along the second direction 131b, while the patterned conductive layer 136 of the color filter substrate 100 is arranged along the second direction 131b. The first direction 131a is arranged.

In FIG. 1A and FIG. 2A , the patterned conductive layers 136 of the color filter substrates 100 and 100 a are both striped patterned conductive layers, and the patterned conductive layers 136 are not connected. However, in another embodiment, adjacent patterned conductive layers 136 may also be connected to form a strip-shaped patterned conductive layer. Similarly, the color filter substrate 100 a also has the advantages and applications mentioned above for the color filter substrate 100 , which will not be repeated here.

In addition, please refer to FIG. 1A , FIG. 2A and FIG. 2B at the same time. The structure of the color filter substrate 100 b is similar to that of the color filter substrates 100 and 100 a , and the same components are marked with the same symbols. The difference between the color filter substrate 100b and the aforementioned color filter substrates 100 and 100a is that the color filter substrate 100b is, for example, the arrangement of the patterned conductive layer 136 on the combined color filter substrate 100 and 100a, so that The arrangement of the patterned conductive layer 136 disposed on the color filter substrate 100 b is, for example, a mesh patterned conductive layer, as shown in FIG. 2B . Similarly, the color filter substrate 100 b also has the features and applications mentioned above for the color filter substrates 100 and 100 a , which will not be repeated here.

FIG. 3 is a partial top view of a color filter substrate according to another embodiment of the present invention. Please refer to FIG. 1A and FIG. 3 at the same time, the color filter substrate 200 is similar in structure to the color filter substrate 100 , and the same components are marked with the same symbols. But the difference between the two lies in that the first sensing series 130a and the second sensing series 130b arranged on the color filter substrate 200 are arranged in the same way along the first direction 131a and the second direction 131b respectively. . However, a careful comparison between FIG. 1A and FIG. 3 reveals that the arrangement directions of the first sensing series 130a and the second sensing series 130b are regularly extending in zigzag along the first direction and the second direction respectively, and The sensing pads 132 disposed on the color filter substrate 200 can be neatly aligned with the display blocks 124 of each group, as shown in FIG. 3 . In this way, in addition to simply designing the arrangement of the sensing pads 132 , the sensing resolution of the color filter substrate can be designed through the number of display blocks 124 in each group.

For example, in this embodiment, 2×5 display blocks 124 are regarded as a group. However, according to user's design requirements, the color filter substrate 200 can also be a group of 1×1 display blocks 124 . That is to say, the color filter substrate 200 can be designed such that each pixel serves as a sensing block. In this way, the sensing resolution of the color filter substrate will be greatly improved. However, the above is just an example, and the design of how many display blocks 124 are arranged in each group depends on the needs of users, and the present invention is not limited thereto.

Similarly, when the color filter substrate 200 reduces the thickness of the sensing pad 132 to increase its light transmittance, the problem of increasing the sheet resistance of the sensing pad 132 will still occur. Therefore, as described in the previous embodiment, the patterned conductive layer 136 can be arranged on/under the sensing pad 132, thereby improving the equivalent sheet resistance value increased by reducing the thickness of the sensing pad 132, wherein the detailed principle As the above description, it will not be repeated here.

It is worth mentioning that the arrangement of the patterned conductive layer shown in FIG. 3 is only an example, and the arrangement can also be the same as that shown in FIG. 1A, FIG. 2A or FIG. 2B, or and Its combination, or arrangement as mentioned in the above-mentioned embodiment.

In addition, FIG. 4 is a schematic diagram of a touch-sensitive liquid crystal display according to an embodiment of the present invention. The touch-sensitive liquid crystal display 300 of this embodiment includes a color filter substrate 310 , a transistor array substrate 320 and a liquid crystal layer 330 . The color filter substrate 310 is, for example, selected from the above-mentioned color filter substrates 100 , 100 a , 100 b , and 200 , and the same components are marked with the same symbols. The transistor array substrate 320 is disposed opposite to the first surface 112 of the color filter substrate 310 , as shown in FIG. 4 and FIG. 1B . The liquid crystal layer 330 is disposed between the color filter substrate 310 and the transistor array substrate 320 .

Generally speaking, the transistor array substrate 320 can be divided into top gate or bottom gate design according to the design structure of the transistor, or can be divided into P-MOS transistor (P-channelMOSFET) and N-MOS transistor according to the type of transistor. . In addition, the transistor array substrate 320 can be further divided into metal-dielectric layer-metal (MIM) design or metal-dielectric layer-transparent electrode layer (MII) design according to the film layer design of the storage capacitor on the substrate. Meanwhile, according to the pixel structure on the transistor array substrate 320 , it can also be divided into reflective design, transmissive design, transflective design, or micro-reflective design. In other words, according to user's design requirements, the transistor array substrate 320 can be a transistor array substrate formed according to the above-mentioned components and their applications.

In addition, the material of the liquid crystal layer 330 can be Nematic Liquid Crystal, Cholesteric Liquid Crystal, Smectic Liquid Crystal, Discotic Liquid Crystal according to the type or the arrangement of liquid crystal molecules. LC) and bowl-shaped liquid crystal (Bowlic LC) and so on. In addition, depending on the method of injecting the liquid crystal layer 330 between the color filter substrate 310 and the transistor array substrate 320 , it may be a drop injection method or a vacuum injection method. Certainly, the above injection method and the material of the liquid crystal molecules depend on the user's design requirements, and the above is only for illustration and not intended to limit the present invention.

Since the color filter substrate 310 of the touch-sensitive liquid crystal display adopts the above-mentioned color filter substrates 100, 100a, 100b, and 200, when the touch-sensitive liquid crystal display 300 is driven, the displayed picture has a better quality. image quality. In addition, according to the design or arrangement of the patterned conductive layer 136 disposed on the color filter substrate 310, the touch-sensitive liquid crystal display 300 can have a simple touch design, and can provide better touch sensitivity or resolution, wherein Detailed description, as the advantages described in the previous embodiment, will not be repeated here.

second embodiment

The touch-sensitive substrate of this embodiment adopts a design concept similar to that of the above-mentioned color filter substrate, but the difference lies in that the touch-sensitive substrate of this embodiment is equipped with sensing series on the substrate, and the above-mentioned patterned color The filter layer is correspondingly arranged on the display area of the transistor array substrate. In other words, the touch-sensitive substrate of this embodiment can be the opposite substrate, and the touch-sensitive substrate mainly provides touch function. The connection relationship of each component of the touch-sensitive substrate will be described in detail below.

FIG. 5 is a partial top view of a touch-sensitive substrate according to the present invention. For convenience of description, FIG. 5 mainly shows the structure of the display block and the sensing series, while omitting other possible film layers. Please refer to FIG. 5 , the touch-sensitive substrate 400 of this embodiment includes a substrate 410 and a plurality of sensing series 420 .

In this embodiment, the material of the substrate 410 is, for example, the material of the above-mentioned substrate 100 , and related descriptions will not be repeated here. In addition, the substrate 410 has a plurality of display blocks 412 arranged in an array, wherein a partition area 412 a is provided between the display blocks 412 . Similarly, if the patterned color filter layer is disposed on the above-mentioned display area 412 , the above-mentioned color filter substrates 100 , 100 a , 100 b , and 200 can be formed. Of course, in this embodiment, the position of the patterned color filter layer on the display block 412 can only correspond, that is, the patterned color filter layer can be selectively arranged on the transistor array on the display block 412 On the substrate to form a color array (Color filter on Array) substrate. In this way, the touch-sensitive substrate 400 mainly provides touch-control functions.

In addition, the manner in which the plurality of sensing series 420 are arranged on the substrate 410 can adopt the design of the above-mentioned color filter substrates 100 , 100 a , 100 b , and 200 . That is to say, the sensing series 420 includes a plurality of sensing pads 422, bridge lines 424 and patterned conductive layers 426, wherein the sensing series 420 can be divided into a first sensing series 420a and a second sensing series. 420b, and the first sensing series 420a is arranged along a first direction 421a, and the second sensing series 420b is arranged along a second direction 421b, wherein the first direction 421a is substantially perpendicular to the second direction 421b, as shown in FIG. 5.

However, no matter how the layers of the sensing series 420 and the display block 412 are arranged and designed, if the film thickness of the sensing series 420 is reduced to increase the light transmittance of the touch-sensitive substrate 400, the sensing series will also face Row 420 resistor value raised problem. Therefore, by adopting the solutions mentioned in the above-mentioned embodiments, the patterned conductive layer 426 can be arranged above or below the film layer of the sensing pad 422, so that the resistance of the sensing series 420 will not be affected by the reduction of the thickness of the sensing pad 422. Greatly improved, wherein the description of related principles is as described in the previous embodiment, and will not be repeated here.

It is worth mentioning that the design of the sensing series 420 is similar to the aforementioned sensing series 130 , therefore, the first sensing series 420 a and the second sensing series 420 b are electrically isolated from each other. Similarly, each of the first sensing series 420 a and each of the second sensing series 420 b includes the aforementioned sensing pads 422 , the aforementioned bridge lines 424 and the aforementioned patterned conductive layer 426 .

In each sensing series 420 , each bridge line 424 connects two adjacent sensing pads 422 . The patterned conductive layer 426 is stacked with the sensing pad 422 and electrically connected to the sensing pad 422 , wherein the position of the patterned conductive layer 426 corresponds to the separation area 412 a between the display blocks 412 , as shown in FIG. 5 . In detail, the arrangement and configuration of the sensing series 420 shown in FIG. 5 is just an example, but not limited thereto. The arrangement can also be similar to those shown in FIGS. 1A, 2A, 2B, 3 or and the arrangement depicted by their combinations.

What is more worth mentioning is that the areas of the sensing pads 132 and 422 of the above-mentioned color filter substrates 100, 100a, 100b, 200 or the touch-sensitive substrate 400 are preferably larger than the patterned color filter layer 120 or The area of block 412 is displayed.

In addition, the touch-sensitive substrate 400 of this embodiment can also be applied to the above-mentioned touch-sensitive liquid crystal display 300 , so that the touch-sensitive liquid crystal display 300 can provide better display quality and touch resolution.

In summary, the touch-sensitive substrate, the color filter substrate and the touch-sensitive liquid crystal display of the present invention have at least the following advantages. First, by arranging multiple patterned conductive layers on/under the sensing pads, the color filter substrate and the touch-sensitive substrate can effectively reduce the film thickness of the sensing series to increase its light transmittance. Improve the sheet resistance value increased by reducing the thickness of the film layer. In addition, according to the ratio of the area of the patterned conductive layer disposed on the separation area and various implementation modes, in addition to achieving the above advantages, the use of black matrix can also be reduced to reduce costs. Furthermore, the arrangement design of the sensing series can also enable the color filter substrate or the touch substrate to have a relatively simple touch unit design, which can be applied to improve its touch resolution or sensitivity. In this way, the liquid crystal display using the above-mentioned color filter substrate and touch-sensitive substrate has better display quality, better touch resolution or sensitivity, and lower cost.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (15)

1. A color filter substrate, characterized in that, comprising: A substrate having a first surface and a second surface opposite to the first surface, and the substrate has a plurality of display blocks arranged in an array, with a separation area between the display blocks; A plurality of patterned color filter layers are arranged in an array on the first surface, corresponding to the display blocks; a black matrix layer is configured on the first surface and located in the separation area; A plurality of sensing series are arranged on the second surface, each of the sensing series is electrically insulated from each other, and each of the sensing series includes: A plurality of sensing pads are made of transparent conductive material; a plurality of bridge lines, each of which connects two adjacent sensing pads; and A plurality of patterned conductive layers are stacked with the sensing pads and electrically connected with the sensing pads, wherein the positions of the patterned conductive layers correspond to the separation regions between the display blocks, and the The sheet resistance of the patterned conductive layer is lower than that of the sensing pads, and the width of the patterned conductive layer is smaller than the width of the black matrix layer. 2. The color filter substrate according to claim 1, wherein the sensing series comprise: a plurality of first sensing series extending along a first direction; and The plurality of second sensing series extend along a second direction, wherein the first direction is substantially perpendicular to the second direction. 3. The color filter substrate according to claim 1, wherein the bridging lines are made of the same material as the patterned conductive layers. 4. The color filter substrate according to claim 1, wherein the sheet resistance of the bridging lines is lower than the sheet resistance of the sensing pads. 5 . The color filter substrate according to claim 1 , wherein materials of the bridging lines and the patterned conductive layers include metal. 6 . The color filter substrate according to claim 1 , wherein materials of the bridging lines and the patterned conductive layers include titanium/aluminum/titanium clad metal. 7. The color filter substrate according to claim 1, wherein the patterned conductive layers are located between the substrate and the sensing pads. 8. The color filter substrate according to claim 1, wherein the sensing pads are located between the substrate and the patterned conductive layers. 9 . The color filter substrate according to claim 1 , wherein each of the patterned conductive layers is a strip-shaped patterned conductive layer. 10. The color filter substrate according to claim 1, wherein each of the patterned conductive layers is a mesh patterned conductive layer. 11. The color filter substrate according to claim 1, wherein an area of each of the sensing pads is larger than an area of each of the patterned color filter layers. 12. A touch-sensitive liquid crystal display, characterized in that it comprises: A color filter substrate, including: A substrate having a first surface and a second surface opposite to the first surface, and the substrate has a plurality of display blocks arranged in an array, with a separation area between the display blocks; A plurality of patterned color filter layers are arranged in an array on the first surface, corresponding to the display blocks; a black matrix layer is configured on the first surface and located in the separation area; A plurality of sensing series are arranged on the second surface, each of the sensing series is electrically insulated from each other, and each of the sensing series includes: A plurality of sensing pads are made of transparent conductive material; a plurality of bridge lines, each of which connects two adjacent sensing pads; and A plurality of patterned conductive layers are stacked with the sensing pads and electrically connected with the sensing pads, wherein the positions of the patterned conductive layers correspond to the separation regions between the display blocks, and the The sheet resistance value of the patterned conductive layer is lower than the sheet resistance value of the sensing pads, and the width of the patterned conductive layer is smaller than the width of the black matrix layer; a transistor array substrate disposed opposite to the first surface of the color array substrate; and A liquid crystal layer is arranged between the color filter substrate and the transistor array substrate. 13. A touch-sensitive substrate, characterized in that it comprises: A substrate with a plurality of display blocks arranged in an array, with a separation area between the display blocks; A black matrix layer is configured on the substrate and located in the separation area; A plurality of sensing series are arranged on the substrate, each of the sensing series is electrically insulated from each other, and each of the sensing series includes: A plurality of sensing pads are made of transparent conductive material; a plurality of bridge lines, each of which connects two adjacent sensing pads; and A plurality of patterned conductive layers are stacked with the sensing pads and electrically connected with the sensing pads, wherein the positions of the patterned conductive layers correspond to the separation regions between the display blocks, and the The sheet resistance of the patterned conductive layer is lower than that of the sensing pads, and the width of the patterned conductive layer is smaller than the width of the black matrix layer. 14. The touch-sensitive substrate according to claim 13, wherein the sensing series comprise: a plurality of first sensing series extending along a first direction; and The plurality of second sensing series extend along a second direction, wherein the first direction is substantially perpendicular to the second direction. 15. The touch-sensitive substrate according to claim 13, wherein a material of the patterned conductive layers comprises metal.

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