TW201701136A - Touch display panel - Google Patents

Abstract

A touch display panel includes a first substrate, a second substrate, a display medium layer, a thin film switch layer, a touch-control electrode layer, and a plurality of conductive lines. The display medium layer is disposed between the first substrate and the second substrate. The thin film switch layer is disposed between the first substrate and the display medium layer. The touch-control electrode layer is disposed between the thin film switch layer and the display medium layer and includes a plurality of touch-control electrodes disposed in the display region of the touch display panel. The conductive lines are disposed on the inner surface of the first substrate and extend along a direction from the display region to the periphery region. Each conductive line is electrically connected to one of the touch-control electrodes, and all the conductive lines have the same lengths within the display region.

Description

Touch display panel

The present invention relates to a touch display panel, and more particularly to a touch display panel capable of avoiding uneven brightness of a screen due to a capacitive coupling effect.

With the popularity of consumer electronic devices, touch-enabled display panels have been widely used in smart phones, digital cameras, multimedia players, and notebook computers. The conventional touch display panel separates the touch panel from the liquid crystal display panel, and then assembles the touch panel and the liquid crystal display panel, so that the weight is heavy, the cost is high, and the light transmittance is low. In order to solve the above disadvantages, it has recently been developed to form a touch panel and a display element on the same panel to form a display panel having a touch function. The touch component of the integrated touch display panel is disposed on the substrate of the display panel. When the finger touches the panel, the sensing capacitance is generated to cause a change in capacitance, and the position of the finger touch can be known through the circuit operation. However, a capacitive coupling effect occurs between the gate line of the display panel and the touch element, which affects the pixels passing through the wires electrically connected to the touch element, so that the positions corresponding to the pixels appear streak on the display screen. Shapes, such as vertical stripes or horizontal stripes, which are most pronounced with vertical stripes, make the display visually unsatisfactory.

One of the objects of the present invention is to provide a touch display panel having a special wire distribution to improve the vertical streaks or horizontal streaks of the display image caused by capacitive coupling effects or uneven resistance in the prior art.

One embodiment of the present invention discloses a touch display panel including a first substrate, a second substrate, a display medium layer, a thin film switching device layer, a touch electrode layer, and a plurality of wires. The first substrate and the second substrate are disposed opposite to each other, wherein the first substrate surface has a display area and a peripheral area, and the peripheral area is disposed around the display area. The display medium layer is disposed between the first substrate and the second substrate, and the thin film switching element layer is disposed between the first substrate and the display medium layer and located on the inner surface of the first substrate. The touch electrode layer is disposed between the membrane switch element layer and the display medium layer, and includes a plurality of touch electrodes disposed in the display area. The wire is disposed on the inner surface of the first substrate and extends along the first direction to extend from the display area to the peripheral area, wherein each of the wires is electrically connected to one of the touch electrodes, and each of the wires has the same in the display area length.

Another embodiment of the present invention provides a touch display panel including a first substrate, a second substrate, a display dielectric layer, a thin film switching device layer, a touch electrode layer, a plurality of connection bumps, and a plurality of wires. The first substrate and the second substrate are disposed opposite to each other, wherein the first substrate surface has a display area and a peripheral area, and the peripheral area is disposed around the display area. The display medium layer is disposed between the first substrate and the second substrate, and the thin film switching element layer is disposed between the first substrate and the display medium layer and located on the inner surface of the first substrate. The touch electrode layer is disposed between the membrane switch element layer and the display medium layer, and includes a plurality of touch electrodes disposed in the display area. The connecting bump is located on the inner surface of the first substrate, and the wire is disposed on the inner surface of the first substrate and extends along the first direction to extend from the display region to the peripheral region, wherein each of the wires is electrically connected to one of the touch electrodes and connected to One of the corresponding connecting bumps. In the same straight line region, the distance between the Rth touch electrode and the corresponding connecting bump is greater than the distance between the Sth touch electrode and the corresponding connecting bump, and the Rth touch electrode is connected to the r wire, the S The touch electrodes are connected to the s wires and r<s.

According to still another embodiment of the present invention, a touch display panel includes a first substrate, a second substrate, a display medium layer, a thin film switching device layer, a touch electrode layer, a plurality of connection bumps, and a plurality of wires. The first substrate and the second substrate are disposed opposite to each other, wherein the first substrate surface has a display area and a peripheral area, and the peripheral area is disposed around the display area. The display medium layer is disposed between the first substrate and the second substrate, and the thin film switching element layer is disposed between the first substrate and the display medium layer and located on the inner surface of the first substrate. The touch electrode layer is disposed between the membrane switch element layer and the display medium layer, and includes a plurality of touch electrodes disposed in the display area. The connecting bump is located in a bump setting area of the peripheral area, and the wire is disposed on the inner surface of the first substrate and extends along the first direction to extend from the display area to the peripheral area, wherein each of the wires is electrically connected to one of the wires The touch electrode is connected to one of the corresponding connection bumps. In the same straight line region, the distance between the Pth touch electrode and the bump setting area is greater than the distance between the Wth touch electrode and the bump setting area, and the wire electrically connected by the Pth touch electrode is wound around the peripheral area. The line is shorter than the winding of the wire electrically connected to the Wth touch electrode in the peripheral area.

The present invention will be further understood by those of ordinary skill in the art to which the present invention pertains. . For the convenience of description, the drawings of the present invention are only for the purpose of understanding the present invention, and the detailed proportions thereof can be adjusted according to the design requirements.

1 and 2, FIG. 1 is a cross-sectional view showing a first embodiment of the touch display panel of the present invention, and FIG. 2 is a top plan view showing the inner surface of the first substrate shown in FIG. As shown in FIG. 1 , the touch display panel 100 of the first embodiment of the present invention includes a first substrate 102 , a second substrate 104 , a display dielectric layer 106 , a thin film switching device layer 108 , and a touch electrode layer 110A . The first substrate 102 and the second substrate 104 are disposed in parallel with each other, and have a display area 112 and a peripheral area 114 disposed around the display area 112 on the surface of the first substrate 102. The display medium layer 106 is disposed between the first substrate 102 and the second substrate 104. The touch display panel 100 of the present embodiment is exemplified by a liquid crystal display panel. Therefore, the display medium layer 106 is a liquid crystal layer, and the liquid crystal layer is surrounded by the sealant 116. It is fixed between the first substrate 102 and the second substrate 104. In other embodiments, the touch display panel 100 of the present invention may be other types of display panels, such as an electrophoretic display panel, but is not limited thereto. The thin film switching element layer 108 is disposed between the first substrate 102 and the display medium layer 106 and on the inner surface 102a of the first substrate 102. It should be noted that the thin film switching device layer 108 depicted in FIG. 1 is represented by a flat film layer, but the thin film switching device layer 108 may actually include a plurality of film layers having high and low undulations, such as a semiconductor layer and a transparent conductive layer. , metal conductive layer and dielectric layer, but not limited to this. The touch electrode layer 110A is disposed between the thin film switch element layer 108 and the display medium layer 106 and includes a plurality of touch electrodes 110 disposed in the display area 112 (shown in FIG. 2). As shown in Fig. 2, the first figure is shown by only one flat film layer. In addition, the touch display panel 100 of the present invention further includes a plurality of wires 118 (not shown in FIG. 1) disposed on the inner surface 102a of the first substrate 102. The wires 118 are shown in FIG. 2 and will be further described below. Description.

As shown in FIG. 2, the touch element of the touch display panel 100 of the present embodiment is a self-capacitive touch structure, and the touch electrode layer 110A includes a plurality of touch electrodes 110 arranged side by side and arranged in a plurality of rows and columns. Array, the array shown in FIG. 2 includes five rows C1, C2, C3, C4, C5 parallel to the first direction Y and eight columns R1, R2, R3, R4, R5, R6, R7 parallel to the second direction X. R8, wherein the first direction Y is perpendicular to the second direction X, the touch electrodes of the column R1 are represented by the symbol 1101, the touch electrodes of the column R2 are represented by the symbol 1102, and the touch electrodes of the column R3 are represented by the symbol 1103. analogy. Each row C1 to C5 of the embodiment is composed of eight touch electrodes 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, and touch electrodes 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108 are respectively electrically connected to a corresponding wire 1181, 1182, 1183, 1184, 1185, 1186, 1187, 1188, wherein the touch electrode 1101 is electrically connected to the column R1 (that is, the first touch from the upper side) The wire of the control electrode is indicated by the symbol 1181, and the wire electrically connected to the touch electrode 1102 of the column R2 (that is, the second touch electrode calculated from the upper side) is represented by the symbol 1182 and electrically connected to the contact of the column R3. The wires of the control electrode 1103 (i.e., the third touch electrode from the upper side) are denoted by the symbol 1183, and so on, and the reference numeral 118 hereinafter denotes a non-specific wire. As shown in FIG. 2, the wire 118 extends from the display region 112 along the first direction Y to the peripheral region 114. Each of the wires 118 includes a contact point 118a, and is electrically connected to the corresponding one of the touch electrodes 110 by the contact member 118b. For example, the contact point 118a of the wire 1181 is disposed corresponding to the touch electrode 1101, and the contact point 118a of the wire 1182 is disposed corresponding to the touch electrode 1102, and so on. As can be seen from FIG. 2, in the same row C1, C2, C3, C4 or C5, the distribution of the contact points 118a is sequentially arranged from the upper left to the lower right, but in other embodiments, it is not limited to the above-described distribution, for example. It can be arranged from the lower left to the upper right, in a V-shaped arrangement, in an inverted V-shaped arrangement, out of order or randomly arranged. For example, the contact point 118a of the wire 1181 and the contact 118b correspond to the touch electrode 1101, but the wire 1182 The contact point 118a and the contact 118b correspond to the touch electrode 1103, and the contact point 118a of the wire 1183 and the contact 118b correspond to the touch electrode 1102, which are the same in other embodiments. The contact point 118a and the contact piece 118b are exemplified by the same material. According to this embodiment, each of the wires 118 has the same length in the display region 112 and extends across all of the touch electrodes 110 in the same row C1, C2, C3, C4 or C5. In other words, each row C1, C2, C3, C4, and C5 of the touch electrode array of the present embodiment is composed of K touch electrodes 110, and the K touch electrodes 110 are electrically connected to the corresponding K wires. And the K wires 118 extend across the corresponding K touch electrodes 110 of the row and are evenly distributed in the row, where K is a positive integer, and K of the embodiment is 8 as an example, but not This is limited.

Referring to FIG. 2, each of the wires 118 is electrically connected to a connecting bump 120 disposed in the peripheral region 114, respectively. Therefore, the wires 118 are electrically insulated from each other, and the touch electrodes 110 are also electrically insulated from each other. In addition, the touch display panel 100 may further include one or more wafers 122 in the peripheral region 114. In this embodiment, a wafer 122 is taken as an example, and the wafer 122 and the connecting bumps 120 at least partially overlap each other by connecting the bumps 120 and The wire 118 can electrically connect the corresponding touch electrode 110 and the logic circuit in the wafer 122 to perform the operation of the touch display panel 100. It should be noted that in order to clearly show the wire 110 and the connection bump 120, the second figure shows the wafer 122 in broken lines.

According to the embodiment, the wires 118 in the same straight-line region are uniformly distributed in the respective rows C1, C2, C3, C4, and C5 along the second direction X, and the wires 118 have the same length, so that the touch electrodes 110 are Corresponding wires 118 have the same width, length and number of traces, so that the resistance and capacitance of the entire panel can be matched, that is, the capacitive coupling has the same influence on each region, and the vertical stripes can be improved simultaneously in the prior art. Horizontal stripes 瑕疵 problem.

Please refer to FIG. 3 , which is a partial cross-sectional view of the touch display panel 100 shown in FIG. 2 , wherein FIG. 3 only shows a single touch electrode 1101 corresponding to the row C1 column R1 on the surface of the first substrate 102 . A cross section of the film along the second direction X. As shown in FIG. 3, a plurality of film layers are disposed on the inner surface 102a of the first substrate 102, and the thin film switching device layer 108, the touch electrode layer 110A, the first insulating layer 142, and the metal conductive layer 148 are sequentially included from bottom to top. The second insulating layer 144 and the transparent conductive layer 146, wherein the portion of the touch electrode layer 110A in the corresponding row C1 is R1 is the touch electrode 1101, and the touch electrode layer 110A can be a transparent conductive layer 140, so the touch electrode 1101 may comprise a transparent conductive material, but is not limited thereto. The metal conductive layer 148 includes the wires 1181, 1182, 1183, 1184, 1185, 1186, and 1188. That is, the wire 118 of the present invention may be made of a metal conductive material, but not limited thereto, for example, may also be composed of a transparent conductive material. A first insulating layer 142 is disposed between the metal conductive layer 148 and the touch electrode 110, and each of the wires (eg, the wires 1181) is electrically connected to the contact 118b disposed in the first insulating layer 142 by a contact point 118a. Touch electrode 110. In addition, the transparent conductive layer 146 includes a plurality of pixel electrodes 150 (only one of which is shown in FIG. 3), and is disposed on the surface of the second insulating layer 144, and can be electrically connected to the corresponding surface by a contact hole (not shown). Membrane switching element. Each of the touch electrodes 110 of the present embodiment is used as a common electrode in the display panel, and an electric field is generated between the display panel and the pixel electrode 150 to rotate the liquid crystal molecules to generate a display screen.

Please refer to FIG. 4 , which is a partial cross-sectional view showing a first variation of the first embodiment of the touch display panel of the present invention, and a pictorial portion thereof corresponds to FIG. 3 . The difference between the touch display panel 1001 and the third embodiment is that the pixel electrode 150 and the touch electrode 110 are disposed at different positions. For example, the pixel electrode 150 is disposed under the touch electrode 110 and is located at the touch. The electrode layer 110A and the first substrate 102 are electrically connected to the corresponding touch electrodes 110 by the contact points 118a and the contacts 118b of the second insulating layer 144. Therefore, the relative design of the wire and the touch electrode of the first embodiment of the touch panel of the present invention can be applied to both the common electrode top and the pixel top display panel design. The following embodiments are the same as the modified embodiments, and are not described again.

The touch display panel of the present invention is not limited to the above embodiment. The other embodiments and variations of the present invention are described in the following, and the same reference numerals will be used to refer to the same elements, and the repeated parts will not be described again.

Please refer to FIG. 5. FIG. 5 is a second variation of the first embodiment of the touch display panel of the present invention. The main difference between the touch display panel 1002 and the first embodiment is that the touch component is a mutual capacitive structure, and the touch component includes a plurality of Y extending along the first direction Y and arranged along the second direction X. The first electrode string 124 is not connected to (or electrically connected to) the wire 118, and the touch electrodes 110 of the modified embodiment are respectively a second electrode string extending along the second direction X and arranged along the first direction Y. The column 126 has a corresponding connection relationship with the wire 118 similar to the touch electrode 110 described in the first embodiment. FIG. 5 illustrates four first electrode serials 124, wherein each electrode serial 124 includes a plurality of electrode pads 124b and a bridge wire 124a for serially connecting the electrode pads 124b. The first electrode series of the modified embodiment The electrode pads 124b and the bridge wires 124a of the 124 are formed of a transparent conductive layer, and the lowermost bridge wire 124a extends to the peripheral region 114 to be connected to the corresponding connection bump 120, but is not limited thereto. On the other hand, from the upper side to the lower side of FIG. 5, eight second electrode serials 126 are included, which are touch electrodes 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, and second electrode serials. The 126 is formed by a plurality of electrode pads 126b and a bridge 126a positioned between the electrode pads 126b, wherein the bridge wires 126a are used to electrically connect the electrode pads 126b in the same second electrode string 126. For example, the electrode pad 126b may comprise a transparent conductive material, and the bridge wire 126a may be made of a metal conductive material, and the two are electrically connected to each other by the contact member 126c. The material of the contact member 126c is the same as the bridge wire 126a, but This is limited to this. It should be noted that, in other variant embodiments, the structure of the bridge and electrode pads of the first electrode serial 124 and the second electrode serial 126 is not limited to those shown in FIG. 5, such as the above materials, structures and The set positions are interchangeable.

Similar to the first embodiment, the wires 118 have the same length and width within the display region 112, and the wires 118 extend across different second electrode trains 126. In the modified embodiment, each electrode pad 126b is spanned or overlapped by two different wires 118, and the wires 118 are evenly distributed in the electrode pads 126b along the second direction X. The wire 1181 electrically connected to the uppermost touch electrode 1101 (ie, the second electrode string 126) is electrically connected to the electrode pad 126b by the contact 118b at the leftmost electrode pad 126b of the second electrode string 126. The wire 1182 electrically connected to the second second electrode string 126 of the upper side is electrically connected to the second electrode pad 126b on the left side of the second electrode string 126; and electrically connected to the third second electrode string 126 of the upper side. The wire 1183 is electrically connected to the third electrode pad 126b on the left side of the second electrode string 126; the wire 1184 electrically connected to the fourth fourth electrode string 126 is electrically connected to the left side of the second electrode string 126. The four electrode pads 126b; the wires 1185 electrically connected to the upper fifth electrode array 126 are electrically connected to the first electrode pad 126b on the left side of the second electrode string 126; and electrically connected to the sixth and second electrodes on the upper side. The wire 1186 of the electrode string 126 is electrically connected to the second electrode pad 126b on the left side of the second electrode string 126; the wire 1187 electrically connected to the upper seventh second electrode string 126 is electrically connected to the second electrode. The third electrode pad 126b on the left side of the string 126; and electrically connected to the eighth 1188-based wire second electrode 126 is series connected to the second electrode of the fourth left series 126 electrode pad 126b. Therefore, the contacts 118b are sequentially located from top to bottom, from left to right, on the first, fifth, second, sixth, third, seventh, fourth and eighth electrodes on the upper side. Pad 126b. It should be noted that the electrical connection positions of the wires 118 and the electrode pads 126b or the second electrode series 126 in the touch display panel 1001 (ie, the positions where the contacts 118b are disposed) may be differently set as needed, for example, in order. It is set from the upper left to the lower right, from the lower left to the upper right, arranged in a V shape, arranged in an inverted V shape or randomly arranged.

Please refer to FIG. 6 and FIG. 7 . FIG. 6 is a schematic top view of the second embodiment of the touch display panel of the present invention, and FIG. 7 is an enlarged schematic view of the touch electrode in the continuous area shown in FIG. 6 . As shown in FIG. 6 , the touch display panel 200 includes a self-capacitive touch element structure, and the touch electrode layer 110A includes a plurality of touch electrodes 110. Similar to the first embodiment, the touch electrodes 110 are arranged in a plurality. An array of rows and columns, wherein each row corresponds to a straight row extending in the first direction Y, so that the plurality of straight regions are arranged along the second direction X, and the plurality of straight regions are respectively represented by symbols L1, L2, L3, L4 , L5, L6, L7, wherein in each of the straight-line regions, twelve touch electrodes 110 are sequentially numbered 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, from top to bottom, 1111, 1112 said. In this embodiment, the straight-line areas L1 to L7 are divided into a plurality of blocks, including a first block A1, a second block A2, a third block A3, and a fourth block A4. In a preferred case, each area There are a plurality of identical touch electrodes 110 in the block. Referring to FIG. 7 again, since a plurality of wires 118 are simultaneously arranged in the line region, in order to clearly show the distribution of the wires 118, the seventh figure takes the first straight region L1 as an example, and the straight region is The touch electrodes 110 in L1 are laterally enlarged to allow the layout of the wires 118 to be clearly indicated. The touch display panel 200 includes a plurality of wires 118 extending along the first direction Y and extending from the display region 112 to the peripheral region 114, and each of the wires 118 is electrically connected to one of the touch electrodes 110 and connected (or electrically connected) to Corresponding connection bumps 120. In the same straight-line region, for example, in the straight-line region L1 shown in FIG. 7, the touch electrodes 1101, 1102, and 1103 in the first block A1 are electrically connected to the wires 1181, 1182, and 1183, respectively; and the second block A1. The touch electrodes 1104, 1105, and 1106 are electrically connected to the two wires 118, which are sequentially connected to the wires 1184, 1185, and 1186; the touch electrodes 1107, 1108, and 1109 in the third block A3 are electrically connected to the three wires, respectively. 118, in the order of the wires 1187, 1188, 1189; and the touch electrodes 1110, 1111, 1112 in the fourth block A4 are electrically connected to the four wires 118, respectively, in the order of the wires 11810, 11811, 11812. That is, the number of wires 118 connected to the touch electrodes 110 disposed in the block closer to the connection bumps 120 is larger. Moreover, according to the embodiment, in the same block, the line width of the wires 118 electrically connected to the touch electrodes 110 that are closer to the connection bumps 120 is larger. For example, in the first block A1, the wire 1181 electrically connected to the first touch electrode 1101 has a minimum line width, and the wire 1182 electrically connected to the second touch electrode 1102 has a line width slightly larger than the wire 1181, and the third The wire 1183 electrically connected to the touch electrode 1103 has the largest line width. There are similar arrangements in other blocks, so the wires 1181, 1184, 1187, 11810 have the same line width, and the wires 1182, 1185, 1188, 11811 have the same line width and are larger than the line width of the wire 1181, and the wire 1183 1,186, 1189, 11812 have the same line width and are larger than the line width of the wire 1182. In short, according to the embodiment, the distance between the Rth touch electrodes 110 and the corresponding connection bumps 120 is greater than the distance between the S touch electrodes 110 and the corresponding connection bumps 120, and the Rth touch The control electrode 110 is connected to the r wire 118, and the Sth touch electrode 110 is connected to the s wire 118, then r<s, indicating that the Rth touch electrode 110 and the Sth touch electrode 110 are located in different regions. In the block. Further, in the same straight-line region, when the distance between the Rth touch electrode 110 and the corresponding connection bump 120 is greater than the distance between the Qth touch electrode 110 and the corresponding connection bump 120, the Qth touch The line width of the q wires 118 electrically connected to the electrodes 110 is greater than the line width of the r wires 118, where S>Q>R, s>q=r, indicating the Qth touch electrode 110 and the Rth touch. The electrodes 110 are located in the same block. In addition, in this embodiment, the touch electrodes 110 of the same straight line region (for example, L1) are divided into four blocks from top to bottom and there are twelve touch electrodes 110. Therefore, in the straight line region, when S- When R≧3, then sr≧1, but not limited to this.

Referring to FIG. 7 , the wires 118 electrically connected to the same touch electrode 110 are arranged side by side to form a wire group, wherein the first wire group 1281 , the fifth wire group 1285 and the ninth wire group 1289 respectively include only A wire 1181, 1182, 1183, a second wire group 1282, a sixth wire group 1286 and a tenth wire group 12810 respectively comprise two wires 1184, 1185, 1186, a third wire group 1283, a seventh wire group 1287 and a tenth A wire group 12811 includes three wires 1187, 1188 and 1189, respectively, and the fourth wire group 1284, the eighth wire group 1288 and the twelfth wire group 12812 respectively comprise four wires 11810, 11811, 11812, and all wires in the same wire group The 118 series is evenly distributed along the second direction X, and is electrically connected to the same touch electrode 110 and the same connection bump 120 disposed in the peripheral region 114. In a preferred embodiment, each of the sets of wires is also evenly distributed in the same straight line region L1 along the second direction X. In addition, in the present embodiment, the materials of the element film layers and the relative positions on the surface of the first substrate 102 can be referred to the first, third, and fourth figures of the first embodiment and related descriptions, and thus will not be described again.

Since the capacitive coupling effect needs to consider the capacitance between the entire trace and the pixel electrode, and the capacitance is related to the overlapping area between the wire and the pixel electrode, the design of the embodiment is in each block. Capacitance matching is achieved by having different lengths of wires 118 having different line widths, and between different blocks, capacitance matching is achieved by adjusting the number of wires 118. For example, the number of the wires 1181 electrically connected to the touch electrode 1101 is 1, and the line width is the thinnest and longest, for example, the length is 40 mm, the width is 1 um, and the number of wires 11812 electrically connected to the touch electrode 1112 is 4. The line width is the largest and the shortest, so the product of the length, width and total number of the wires 1181 and 11812 electrically connected to the touch electrode 1101 and the touch electrode 11012 are the same. In other words, according to the embodiment, the product of the length, the line width, and the total number of the wires 118 electrically connected to the touch electrodes 110 are the same in the display area 112, thereby achieving the effect of matching the entire panel capacitance and improving the vertical stripes. The problem.

Please refer to FIG. 8. FIG. 8 is a top plan view showing a surface element of a first substrate portion according to a variation of the second embodiment of the touch panel of the present invention. The touch display panel 2001 of the present embodiment includes a mutual-capacitive touch element structure, and the touch element structure includes a plurality of first electrode strings extending along the first direction Y and arranged in the second direction X and electrically insulated from each other. The column 124 has a second electrode string 126 extending along the second direction X and arranged in the first direction Y and electrically insulated from each other. The structure of the first electrode string 124 and the second electrode string 126 is similar to the relative arrangement position. The second modified embodiment of the foregoing first embodiment is not described again. The relative connection relationship between the second electrode serial 126 and the wire 118 of the modified embodiment is similar to that of the touch electrodes 110 described in the second embodiment. As shown in FIG. 8, the wires 118 electrically connected to the different touch electrodes 110 (ie, the second electrode string 126) have different lengths in the display area 112, but the wires 118 of the modified embodiment have the same Line width. Each of the wires 110 corresponding to the touch electrodes 1101, 1102, 1103, and 1104 has only one wire, which are sequentially wires 1181, 1182, 1183, and 1184, and are electrically connected to the touch electrodes 1101 and 1102, respectively, by the contact members 118b. The first, second, third, and fourth electrode pads 126b from the left side of 1103, 1104; two wires 110 corresponding to the touch electrodes 1105, 1106, 1107, and 1108, respectively, in order The wires 1185, 1186, 1187, and 1188 are electrically connected to the first, second, and third sides of the touch electrodes 1105, 1106, 1107, and 1108, respectively, from the left side by the contacts 118b. The fourth electrode pad 126b. Similar to the second embodiment, the wires 118 connected to the same touch electrode 110 are arranged side by side to form a wire group, and the wires 110 in the same wire group are uniformly arranged along the second direction X and pass through the same touch. The different wire groups of the pad 126b are evenly distributed along the second direction X. For example, the first wire group 1281 and the second wire group 1282 passing through the leftmost touch pad 126b of the touch electrode 1108 are evenly distributed on the touch pad 126b. in. As can be seen from the above, the touch electrode 110 is divided into the first block A1 and the second block A2. The touch electrode 110 in the first block A1 is far away from the connecting bump 120, so The length of the electrically connected wire 118 is longer, and the touch electrode 110 in the second block A1 is closer to the connecting bump 120, so the length of the electrically connected wire 118 is shorter, in order to balance the first block A1. The contact capacitance between the second block A2 and the second block A2 is electrically connected to the two wires 118, thereby increasing the area of the wire 118 corresponding to the second block A2. To achieve capacitance matching. It should be noted that the electrical connection positions of the wires 118 and the electrode pads 126b or the second electrode series 126 in the touch display panel 2001 (ie, the positions where the contacts 118b are disposed) may be differently set as needed, for example, in order. It is set from the upper left to the lower right, from the lower left to the upper right, arranged in a V shape, arranged in an inverted V shape or randomly arranged.

Please refer to FIG. 9 , which is an enlarged schematic view of a touch electrode in a continuous area according to a third embodiment of the touch panel of the present invention. The touch display panel 300 of the third embodiment of the present invention includes a self-capacitive touch element structure, and the touch electrodes 110 are arranged in an array similar to that of the multi-row and multi-column arrays, and the straight-line area L1 is from the top to the bottom. It is divided into four blocks, which are a first block A1, a second block A2, a third block A3, and a fourth block A4. However, the wire 118 of the present embodiment is not the same as the second embodiment. As shown in FIG. 9, the connection bumps 120 are collectively disposed in the bump setting regions 114a of the peripheral region 114. In each of the blocks, the wire 118 electrically connected to the touch electrode 110 farther away from the bump setting region 114a has a shorter winding in the block setting region 114a, and is closer to the touch electrode 110 of the bump setting region 114a. The electrically connected wires 118 have a longer winding in the block setting area 114a. For example, in the first block A1, the wire 1181 corresponding to the first touch electrode 1101 on the upper side does not have a winding portion in the bump setting area 114a, and the second touch electrode 1102 and the third touch The wires 1182, 1183 electrically connected to the control electrode 1103 respectively have winding portions 118c in the bump setting regions 114a, wherein the winding length of the wires 1183 is greater than the winding length of the wires 1182. The second block A2, the third block A3, and the fourth block A4 have similar designs and will not be described again. In other words, in the same block, when the distance between the Pth touch electrode 110 and the bump setting area 114a is greater than the distance between the W touch electrodes 110 and the bump setting area 114a, the Pth touch electrode 110 The wire of the electrically connected wire 118 in the peripheral region 114 is shorter than the wire of the wire 118 electrically connected to the Wth touch electrode 110 in the peripheral region 114. Since the length of the wire 118 corresponding to the touch electrode 110 corresponding to the bump setting region 114a is shorter in the display region 112, the present embodiment has the shorter wire 118 in the display region 112 in the peripheral region 114. Longer windings are made to match the resistance of the individual wires 118.

Moreover, according to the embodiment, the touch electrodes 1101, 1102, and 1103 in the first block A1 are electrically connected to the four wires 1181, 1182, and 1183, respectively; and the touch electrodes 1104, 1105, and 1106 in the second block A2. Electrically connected to the three wires 1184, 1185, 1186; the touch electrodes 1107, 1108, 1109 in the third block A3 are electrically connected to the two wires 1187, 1188, 1189, respectively; and the touch in the fourth block A4 The electrodes 1110, 1111, and 1112 are electrically connected to a plurality of wires 11810, 11811, and 11812, respectively, that is, the number of wires 118 electrically connected to the touch electrodes 110 in the block farther away from the bump setting region 114a. In other words, in the same straight-line area (for example, L1), when the distance between the T-th touch electrode 110 and the bump setting area 114a is greater than the distance between the U-th touch electrode 110 and the bump setting area 114a, the T-th The touch electrode 110 is connected to the t-wires 118, and the U-th touch electrode 110 is connected to the U-wire, and t>u, respectively, indicating that the T-th touch electrode 110 and the U-th touch electrode 110 respectively Located in different blocks. According to the embodiment, when U-T≧3 is satisfied in the same straight-line region, then t-u≧1 is used, but not limited thereto. For example, in the straight area L1, the distance between the first touch electrode 1101 and the bump setting area 114a is greater than the distance between the fourth touch electrode 1104 and the bump setting area 114a, and the first touch electrode 1101 is electrically connected to four wires 1181, and a fourth touch electrode 1104 is electrically connected to three wires 1184. In addition, each of the wires 118 electrically connected to the same touch electrode 110 is electrically connected to the same connection bump 120 disposed in the peripheral region 114. The length of the wire 118 between the touch electrodes 110 and the corresponding connection bumps 120 can be made by the above-mentioned touch electrodes 110 electrically connected to different numbers of wires 118 and the winding design of the wires 110 in the peripheral region 114. The product of the total number is the same to achieve capacitance matching, which in turn makes the effect of capacitive coupling of the entire panel nearly uniform, improving the effect of vertical fringe defects. It should be noted that, in the present embodiment, the materials of the film layers of the components and the relative positions on the surface of the first substrate 102 can be referred to the first, third, and fourth figures of the first embodiment and related descriptions. Let me repeat.

Please refer to FIG. 10 , which is a top plan view of a portion of a surface of a first substrate surface according to a variation of the third embodiment of the touch panel of the present invention. The touch display panel 3001 of the present embodiment includes a mutual capacitive touch element structure, and the touch element includes a plurality of first electrode strings extending along the first direction Y and extending along the second direction X and electrically insulated from each other. The column 124 has a second electrode string 126 extending along the second direction X and arranged in the first direction Y and electrically insulated from each other, wherein the structure and relative arrangement positions of the first electrode string 124 and the second electrode string 126 Similar to the second variation embodiment of the foregoing first embodiment, it will not be described again. The corresponding connection relationship between the second electrode serial 126 and the wire 118 of the modified embodiment is similar to the touch electrode 110 described in the third embodiment. In the embodiment of the present invention, the straight area is divided into a first block A1 and a second block A2, wherein the first block A1 has an upper first touch electrode 1101 and a second touch electrode 1102. The two touch electrodes 1103 and the second touch electrodes 1104 are respectively electrically connected to the two wires 1181, 1182, 1183, and 1184, and the second block A2 has the upper fifth touch electrode 1105 and the sixth. The touch electrodes 1106, the seventh touch electrodes 1107, and the eighth touch electrodes 1108 are respectively electrically connected to one of the wires 1185, 1186, 1187, and 1188. In the same block, the wire 118 electrically connected to the touch electrode 110 closer to the block setting area 114a has a longer winding in the peripheral area 114, for example, the winding portion 118c of the wire 1184 is longer than the winding portion of the wire 1183. 118c, the winding portion 118c of the wire 1183 is longer than the winding portion 118c of the wire 1182, and the wire 1181 has no winding portion. It should be noted that the electrical connection positions of the wires 118 and the electrode pads 126b or the second electrode strings 126 in the touch display panel 3001 (ie, the positions where the contacts 118b are disposed) may be differently set as needed, for example, in order. It is set from the upper left to the lower right, from the lower left to the upper right, arranged in a V shape, arranged in an inverted V shape or randomly arranged.

As can be seen from the above, the present invention uniformly distributes the wires extending along the first direction in the second direction perpendicular to the first direction in the touch electrodes or the touch pads, and the bumps according to the distances of the touch electrodes Setting the distance of the area to change the total number of wires and the line width of the electrical connections corresponding to the touch electrodes, to balance the product of the line width, the area and the total number of the wires corresponding to the touch electrodes, thereby achieving capacitance matching and/or The effect of resistance matching is used to improve the vertical streak and horizontal streak of the display. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 1001, 1002, 200, 2001, 300, 3001‧‧‧ touch display panels
102‧‧‧First substrate
102a‧‧‧ inner surface
104‧‧‧second substrate
106‧‧‧Display media layer
108‧‧‧Metal switch element layer
110A‧‧‧Touch electrode layer
110, 1101 ~ 1112‧ ‧ touch electrode
112‧‧‧ display area
114‧‧‧The surrounding area
114a‧‧‧Bump setting area
116‧‧‧Box glue
118, 1181~11812‧‧‧ wire
118a‧‧‧Contact points
118b, 126c‧‧‧Contacts
118c‧‧‧Winding Department
120‧‧‧Connecting bumps
122‧‧‧ wafer
124‧‧‧First electrode series
126‧‧‧Second electrode series
124a, 126a‧‧ ‧ bridge wiring
124b, 126b‧‧‧electrode pads
1281‧‧‧First lead set
1282‧‧‧Second wire set
1283‧‧‧3rd lead set
1284‧‧‧4th lead set
1285‧‧‧Fixed wire set
1286‧‧‧6th lead set
1287‧‧‧ seventh conductor set
1288‧‧‧8th lead set
1289‧‧‧ ninth wire set
12810‧‧‧10th lead set
12811‧‧‧Eleventh wire group
12812‧‧‧Twelfth wire group
140‧‧‧Transparent conductive layer
142‧‧‧First insulation
144‧‧‧Second insulation
146‧‧‧Transparent conductive layer
148‧‧‧Metal conductive layer
150‧‧‧pixel electrodes
A1‧‧‧ first block
A2‧‧‧Second block
A3‧‧‧ third block
A4‧‧‧Four Block
C1, C2, C3, C4, C5‧‧‧
L1, L2, L3, L4, L5, L6, L7‧‧‧ straight areas
Columns R1, R2, R3, R4, R5, R6, R7, R8‧‧
X‧‧‧second direction
Y‧‧‧First direction

1 is a cross-sectional view showing a first embodiment of a touch display panel of the present invention. Fig. 2 is a top plan view showing a part of the surface of the first substrate shown in Fig. 1. Fig. 3 is a partial cross-sectional view showing the touch display panel shown in Fig. 2. 4 is a partial cross-sectional view showing a first variation of the first embodiment of the touch display panel of the present invention. FIG. 5 is a first substrate of a second variation of the first embodiment of the touch display panel of the present invention. A schematic view of a part of the surface of the component. FIG. 6 is a top plan view showing a part of the surface of the first substrate of the second embodiment of the touch display panel of the present invention. Fig. 7 is an enlarged schematic view showing the touch electrode of the continuous area shown in Fig. 6. FIG. 8 is a top plan view showing a first substrate surface portion of a second embodiment of the touch panel of the present invention. FIG. 9 is an enlarged plan view showing the touch electrode of the third embodiment of the touch panel of the present invention. FIG. 10 is a top plan view showing a portion of a surface of a first substrate surface according to a variation of the third embodiment of the touch panel of the present invention.

100‧‧‧Touch display panel

102‧‧‧First substrate

110, 1101~1108‧‧‧ touch electrodes

112‧‧‧ display area

114‧‧‧The surrounding area

118, 1181~1188‧‧‧ wires

118a‧‧‧Contact points

118b‧‧‧Contacts

120‧‧‧Connecting bumps

122‧‧‧ wafer

C1, C2, C3, C4, C5‧‧‧

Columns R1, R2, R3, R4, R5, R6, R7, R8‧‧

X‧‧‧second direction

Y‧‧‧First direction

Claims (32)

A touch display panel includes: a first substrate and a second substrate, wherein the first substrate and the second substrate are disposed opposite to each other, wherein a surface of the first substrate has a display area and a peripheral area, and the a peripheral layer is disposed around the display area; a display dielectric layer is disposed between the first substrate and the second substrate; a thin film switching element layer is disposed between the first substrate and the display medium layer and located at the a touch electrode layer is disposed between the thin film switch element layer and the display medium layer, the touch electrode layer includes a plurality of touch electrodes disposed in the display area; and a plurality of wires Provided on the inner surface of the first substrate and extending along a first direction to extend from the display area to the peripheral area, wherein each of the wires is electrically connected to one of the touch electrodes, and The wires all have the same length in the display area. The touch display panel of claim 1, wherein the touch electrodes are arranged in an array having a plurality of rows and columns, each row being composed of K of the touch electrodes and electrically connecting the corresponding K wires. The K wires extend across the K touch electrodes of the corresponding row, and K is a positive integer. The touch display panel of claim 2, wherein the K wires corresponding to each row are evenly distributed. The touch display panel of claim 1, wherein the touch electrodes comprise a transparent conductive material, and the wires comprise a metal conductive material. The touch display panel of claim 1 , further comprising an insulating layer disposed between the touch electrode layer and the wires, and each of the wires is respectively provided by a contact disposed in the insulating layer Electrically connected to the corresponding touch electrode. The touch display panel of claim 1, further comprising a plurality of pixel electrodes disposed between the touch electrode layer and the first substrate. The touch display panel of claim 1, further comprising a plurality of pixel electrodes disposed on a side of the touch electrode layer opposite to the first substrate. The touch display panel of claim 1, further comprising a plurality of connection bumps located in the peripheral region, wherein each of the touch electrodes is electrically insulated from each other and electrically connected to the corresponding one by the corresponding wire The connecting bump. The touch display panel of claim 1, further comprising a plurality of first electrode strings arranged along the first direction and not connected to the wires, wherein the touch electrodes are along a second direction Arranging a plurality of second electrode strings, each of the wires extending across the different second electrode strings, wherein the first direction is not parallel to the second direction. A touch display panel includes: a first substrate and a second substrate, wherein the first substrate and the second substrate are disposed opposite to each other, wherein a surface of the first substrate has a display area and a peripheral area, and the a peripheral layer is disposed around the display area; a display dielectric layer is disposed between the first substrate and the second substrate; a thin film switching element layer is disposed between the first substrate and the display medium layer and located at the a touch electrode layer is disposed between the thin film switch element layer and the display medium layer, the touch electrode layer includes a plurality of touch electrodes disposed in the display area; a plurality of connection bumps The block is located in the peripheral region; and a plurality of wires are disposed on the inner surface of the first substrate and extend along a first direction to extend from the display region to the peripheral region, and each of the wires is electrically connected to the plurality of wires One of the touch electrodes is connected to one of the corresponding connection bumps; wherein, in the same straight line region, the distance between the Rth touch electrodes and the corresponding connection bumps is greater than the Sth The touch battery The distance corresponding to the connecting bumps, one of R r of the touch electrode is connected to the lead bar, the S-th touch electrode is connected to the lead strip s, and r <s. The touch display panel of claim 10, wherein the wires or the wires electrically connected to the same touch electrode are electrically connected to the same connecting bump disposed in the peripheral region. The touch display panel of claim 10, wherein the distance between the Rth touch electrodes and the corresponding connection bumps is greater than the Qth touch electrodes and the corresponding connection bumps in the same straight line region The distance between the Qth touch electrodes is connected to the q wires, and the line width of the q wires is greater than the line width of the r wires, where S>Q>R, s>q=r. The touch display panel of claim 12, wherein the product of the length, the line width and the total number of the wires electrically connected to the touch electrodes is the same in the display area. The touch display panel of claim 10, wherein in the same straight line region, the wires or the wires connected to the same touch electrode are arranged side by side to form a wire group, and the same wire group is The wires are evenly distributed in the straight region along a second direction, wherein the second direction is perpendicular to the first direction. The touch display panel of claim 10, wherein the touch electrodes are arranged in an array having a plurality of rows and columns, and in the same straight region, when S-R≧3, s-r≧1. The touch display panel of claim 10, wherein the touch electrodes comprise a transparent conductive material, and the wires comprise a metal conductive material. The touch display panel of claim 10, further comprising an insulating layer disposed between the touch electrode layer and the wires, wherein each of the wires is respectively provided by a contact disposed in the insulating layer Electrically connected to the corresponding touch electrode. The touch display panel of claim 10, further comprising a plurality of pixel electrodes disposed between the touch electrode layer and the first substrate. The touch display panel of claim 10, further comprising a plurality of pixel electrodes disposed on a side of the touch electrode layer opposite to the first substrate. The touch display panel of claim 10, wherein each of the touch electrodes is electrically insulated from each other. The touch display panel of claim 10, further comprising a plurality of first electrode strings arranged along the first direction and not electrically connected to the wires, wherein the touch electrodes are along a second a plurality of second electrode strings arranged in a direction, at least a portion of the wires extending across the different second electrode strings, wherein the first direction is not parallel to the second direction. A touch display panel includes: a first substrate and a second substrate, wherein the first substrate and the second substrate are disposed in parallel with each other, wherein a surface of the first substrate has a display area and a peripheral area, wherein the first substrate a peripheral layer is disposed around the display area; a display dielectric layer is disposed between the first substrate and the second substrate; a thin film switching element layer is disposed between the first substrate and the display medium layer and located at the a touch electrode layer is disposed between the thin film switch element layer and the display medium layer, the touch electrode layer includes a plurality of touch electrodes disposed in the display area; a plurality of connection bumps The block is located in a bump setting area of the peripheral area; and a plurality of wires are disposed on the inner surface of the first substrate and extend along a first direction to extend from the display area to the peripheral area, and each of the wires Each of the touch electrodes is electrically connected to one of the touch electrodes and connected to one of the corresponding connection bumps; wherein, in the same straight line region, the Pth touch electrode and the bump set region are Distance is greater than a distance between the touch electrodes and the bump setting area, wherein the wire of the P-th contact electrode electrically connected to the peripheral region is shorter than the W-th contact of the touch electrode The wire is wound in the peripheral zone. The touch display panel of claim 22, wherein in the same straight line region, the distance between the Tth touch electrode and the bump setting area is greater than the distance between the Uth touch electrode and the bump setting area The Tth touch electrode is electrically connected to the t wires, the U touch electrodes are electrically connected to the u wires, and when UT≧3, t-u≧1. The touch display panel of claim 23, wherein the wires or the wires electrically connected to the same touch electrode are electrically connected to the same connecting bump disposed in the peripheral region, and are connected to each of the wires. The length of the wire or the wires between the touch electrodes and the corresponding connecting bumps is the same as the total number of products. The touch display panel of claim 22, wherein in the same straight line region, the wires or the wires connected to the same touch electrode are arranged side by side to form a wire group, and the same wire group The wires are evenly distributed in the straight row along a second direction, wherein the second direction is perpendicular to the first direction. The touch display panel of claim 22, wherein the touch electrodes are arranged in an array having a plurality of rows and columns. The touch display panel of claim 22, wherein the touch electrodes comprise a transparent conductive material, and the wires comprise a metal conductive material. The touch display panel of claim 22, further comprising an insulating layer disposed between the touch electrode layer and the wires, wherein each of the wires is respectively provided by a contact disposed in the insulating layer Electrically connected to the corresponding touch electrode. The touch display panel of claim 22, further comprising a plurality of pixel electrodes disposed between the touch electrode layer and the first substrate. The touch display panel of claim 22, further comprising a plurality of pixel electrodes disposed on a side of the touch electrode layer opposite to the first substrate. The touch display panel of claim 22, wherein each of the touch electrodes is electrically insulated from each other. The touch display panel of claim 22, further comprising a plurality of first electrode strings arranged along the first direction and not electrically connected to the wires, wherein the touch electrodes are along a second a plurality of second electrode strings arranged in a direction, at least a portion of the wires extending across the different second electrode strings, wherein the first direction is not parallel to the second direction.