TWI483157B - Touch panel and touch display panel - Google Patents

Description

Touch panel and touch display panel

The present invention relates to a touch panel and a touch display panel, and more particularly to an in-cell touch panel and a touch display panel.

In today's information society, people's dependence on electronic products is increasing. In order to achieve more convenience, lighter weight and more user-friendly, many information products have been transformed from traditional keyboards or mouse input devices to touch panels as input devices, which have both touch and display functions. The touch display panel is one of the most popular products today.

According to the configuration relationship between the touch panel and the display panel, the touch panel can be roughly classified into an out-cell, an on-cell, and an in-cell. The externally mounted touch panel is formed by forming a touch component on the substrate to form a touch panel, and attaching the touch panel to the outer surface of the display panel. The integrated touch panel integrates the touch components on the display panel. The in-line touch panel integrates the touch elements directly into the display panel. Therefore, the integrated and in-line touch panel facilitates the slimness of the display.

However, in the structure of the existing touch panel, the black matrix cannot be viewed from the side. The problem of achieving an effective shading effect will result in a decrease in the display quality of the touch display panel. Therefore, improving the shading effect at the side viewing angle will be an urgent problem to be solved.

Embodiments of the present invention provide a touch panel that is provided with a light-shielding strip that can be shielded from light in a lateral view.

Embodiments of the present invention further provide a touch display panel having good display quality.

Embodiments of the present invention provide a touch panel including a substrate, a light shielding pattern layer, a touch electrode layer, a plurality of second bridge lines, a first insulating layer, a plurality of light shielding strips, and a plurality of color filter patterns. The light shielding pattern layer is located on the substrate, and the light shielding pattern layer defines a plurality of unit regions on the substrate. The touch electrode layer is disposed on the substrate, and the touch electrode layer includes a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first bridge wires for electrically connecting the first touch electrodes. The second bridge wire is located on the substrate for electrically connecting the second touch electrodes. The first insulating layer is located between the touch electrode layer and the second bridge. The light shielding strip is located on the substrate, and the light shielding strip is disposed corresponding to the light shielding pattern layer and is in an electrically floating state, wherein the width of the light shielding strip is smaller than the line width of the light shielding pattern layer. The color filter pattern corresponds to the unit area setting.

The embodiment of the present invention further provides a touch display panel, including a pixel array substrate, a counter substrate, a light shielding pattern layer, a touch electrode layer, a first insulating layer, a plurality of second bridge lines, a plurality of light shielding strips, and a plurality of Color filter patterns and counter electrodes. The pixel array substrate includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel structures. The opposite substrate is located above the pixel array substrate. The light shielding pattern layer is located on the opposite substrate, wherein the light shielding pattern layer defines a plurality of unit regions corresponding to the pixel structure on the opposite substrate. The touch electrode layer is disposed on the opposite substrate, and the touch electrode layer includes a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first bridge wires for electrically connecting the first touch electrodes . The first insulating layer covers the touch electrode layer. The second bridge wire is located on the first insulating layer for electrically connecting the second touch electrodes. The light shielding strip is located on the opposite substrate, wherein the light shielding strip is disposed corresponding to the light shielding pattern layer and is in an electrically floating state, and the width of the light shielding strip is smaller than the line width of the light shielding pattern layer. The color filter pattern corresponds to the unit area setting. The counter electrode is located on the color filter pattern.

Based on the above, the touch panel and the touch display panel provided by the embodiments of the present invention can effectively shield the non-pure light by providing a light-shielding strip corresponding to the light-shielding pattern layer therein, thereby providing good visibility in the lateral direction. Display quality.

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

10, 20‧‧‧ touch display panel

100‧‧‧ pixel array substrate

110‧‧‧Substrate

120‧‧‧ scan line

130‧‧‧Information line

140‧‧‧ pixel structure

142‧‧‧Active components

144‧‧‧ pixel electrodes

200‧‧‧Display media

300‧‧‧ opposite substrate

310‧‧‧Lighting pattern layer

312‧‧‧Unit area

314, 316‧‧‧ shading pattern

320, 320', 420‧‧‧ touch element layer

322, 322', 422‧‧ ‧ touch electrode layer

323‧‧‧Isolated area

330‧‧‧First insulation

340‧‧‧shading strip

350‧‧‧Color filter pattern

352‧‧‧Second insulation

360‧‧‧ opposite electrode

460‧‧‧Disconnection area

B1, B', B1" ‧ ‧ first bridge wiring

B2, B2', B2" ‧ ‧ second bridge wiring

D1‧‧‧ first direction

D2‧‧‧ second direction

H1, H2‧‧‧ openings

L1‧‧‧The first touch string

L2‧‧‧Second touch string

P1, P1', P1"‧‧‧ first touch electrode

P2, P2', P2"‧‧‧ second touch electrode

W1, W2, W3, W4‧‧‧ width

1 is a cross-sectional view of a touch display panel in accordance with an embodiment of the invention.

2 is a top plan view of the pixel array substrate of FIG. 1.

3 is a top plan view of the light shielding pattern layer of FIG. 1.

4 is a top plan view of the touch electrode layer of FIG. 1.

FIG. 5 is a top plan view of the touch electrode layer and the second bridge line of FIG. 1. FIG.

Figure 6 is a top plan view of the light shielding strip of Figure 1.

FIG. 7 is a perspective view showing a configuration relationship between a partial light shielding pattern layer, a touch element layer, and a light shielding strip in FIG. 1 .

FIG. 8 is a perspective view showing a configuration relationship between a partial light-shielding pattern layer, a touch element layer, and a light-shielding strip in the touch display panel according to another embodiment of the present invention.

FIG. 9 is a cross-sectional view of a touch display panel according to still another embodiment of the present invention.

FIG. 10 is a top plan view of the touch electrode layer and the second bridge line of FIG. 9. FIG.

1 is a cross-sectional view of a touch display panel in accordance with an embodiment of the invention. 2 is a top plan view of the pixel array substrate of FIG. 1. 3 is a top plan view of the light shielding pattern layer of FIG. 1. 4 is a top plan view of the touch electrode layer of FIG. 1. FIG. 5 is a top plan view of the touch electrode layer and the second bridge line of FIG. 1. FIG. Figure 6 is a top plan view of the light shielding strip of Figure 1. FIG. 7 is a perspective view showing a configuration relationship between a partial light shielding pattern layer, a touch element layer, and a light shielding strip in FIG. 1 . Further, the cross-sectional position of Fig. 1 corresponds to the position of the hatching line A-A' of Figs. 2, 3, 4, 5 and 6. Hereinafter, embodiments of the present invention will be described in detail by referring to FIGS. 1, 2, 3, 4, 5, 6, and 7.

Referring to FIG. 1 , the touch display panel 10 of the present embodiment includes a pixel array substrate 100 , a display medium 200 , a counter substrate 300 , a light shielding pattern layer 310 , and a touch element layer 320 (the touch electrode layer 322 and the second bridge). Line B2), first insulating layer 330, A plurality of light shielding strips 340, a plurality of color filter patterns 350, and a counter electrode 360.

Referring to FIG. 1 and FIG. 2 simultaneously, the pixel array substrate 100 includes a substrate 110, a plurality of scanning lines 120, a plurality of data lines 130, and a plurality of pixel structures 140. In order to clearly illustrate the structure of the scan line 120, the data line 130, and the pixel structure 140, the illustration of the substrate 110 is omitted in FIG. The substrate 110 is, for example, a glass substrate, a plastic substrate, a flexible substrate, or other suitable substrate. The scan line 120 is disposed on the substrate 110 and extends along the first direction D1. The data line 130 is disposed on the substrate 110 and extends in the second direction D2. In general, each pixel structure 140 includes an active component 142 and a pixel electrode 144 electrically connected to the active component 142, and each pixel structure 140 is electrically connected to the corresponding scan line 120 and data line 130 via the active component 142. Sexual connection. The active element 142 is, for example, a thin film transistor. In addition, the pixel structure 140 of the present embodiment may be any pixel structure known to those skilled in the art, and thus the pixel structure 140 of the present invention is not limited to those depicted in FIG. 2.

Referring again to FIG. 1, the display medium 200 is positioned between the counter electrode 360 and the pixel array substrate 100. The display medium 200 is, for example, a liquid crystal material. In other words, the touch display panel 10 of the present embodiment is, for example, a touch liquid crystal display panel. However, the invention is not limited thereto. In other embodiments, the display medium 200 may also be other display materials such as an organic light emitting diode material, an inorganic light emitting diode material, an electrophoretic display material, a fluorescent material, a phosphorescent material, a plasma material, and the like. Therefore, the touch display panel 10 can also be a touch organic light emitting display panel, a touch inorganic light emitting display panel, a touch electrophoretic display panel, or a touch plasma display panel. Detailed display materials and panel structures are well known to those of ordinary skill in the art, and are therefore no longer Said.

Referring to FIG. 1 , the opposite substrate 300 is positioned above the pixel array substrate 100 . The counter substrate 300 is, for example, a glass substrate, a plastic substrate, a flexible substrate, or other suitable substrate.

Referring to FIG. 1 and FIG. 3 simultaneously, the light shielding pattern layer 310 is located on the opposite substrate 300, and the light shielding pattern layer 310 defines a plurality of unit regions 312 corresponding to the pixel structure 140 on the opposite substrate 300. In other words, in the present embodiment, the light-shielding pattern layer 310 has a light-shielding pattern 314 arranged along the first direction D1 and a light-shielding pattern 316 arranged along the second direction D2, wherein the light-shielding pattern 314 is spatially overlapped with the data line 130, and The light shielding pattern 316 overlaps with the scanning line 120. However, those of ordinary skill in the art should understand that the light-shielding pattern 314 and the data line 130 may be completely overlapped or partially overlap, and the light-shielding pattern 316 and the scan line 120 may also be completely overlapped or partially overlapped. In addition, the light shielding pattern layer 310 is disposed corresponding to the adjacent color filter patterns 350 (described in the related description will be described later).

Further, the material of the light-shielding pattern layer 310 is, for example, a black resin or a light-shielding metal, and is preferably made of a material having low reflection. In the present embodiment, the material of the light-shielding pattern layer 310 is a black resin having insulating properties. However, the invention is not limited thereto. If the material of the light-shielding pattern layer 310 is a light-shielding metal, the light-shielding pattern layer 310 and the touch electrode layer 322 further comprise an insulating layer.

Referring to FIG. 1 and FIG. 4 simultaneously, the touch element layer 320 is located on the opposite substrate 300. In this embodiment, the touch element layer 320 includes a touch electrode layer 322. The touch electrode layer 322 is located on the light shielding pattern layer 310, and the touch electrode layer 322 includes a plurality of The first touch electrodes P1 and the plurality of second touch electrodes P2 and the plurality of first bridge lines B1 for electrically connecting the first touch electrodes P1. The material of the touch electrode layer 322 is, for example, a metal, a transparent conductive material or other suitable conductive material. The metal is, for example, aluminum, copper, silver, gold, titanium, molybdenum, tungsten, chromium, etc., and alloys or laminates thereof. The transparent conductive material is, for example, indium tin oxide, indium zinc oxide, aluminum zinc oxide, or the like, and a mixture or a laminate thereof.

Further, the first touch string L1 includes a plurality of first touch electrodes P1 and a plurality of first bridge lines B1. The plurality of first touch strings L1 are arranged in parallel with each other and are not electrically connected. The plurality of first bridges B1 are connected to the adjacent two touch electrodes P1 to extend the first touch string L1 along the second direction D2, and the plurality of first touch strings L1 are arranged along the first direction D1. . In addition, an isolation region 323 is disposed between the second touch electrode P2 and the first touch electrode P1 to separate the first touch electrode P1 and the second touch electrode P2 from each other.

In this embodiment, the first touch electrode P1, the second touch electrode P2, and the first bridge B1 are respectively formed by a mesh structure, and the mesh structure is disposed corresponding to the light shielding pattern layer 310. In detail, each of the first touch electrodes P1 , the second touch electrodes P2 , and the first bridges B1 respectively correspond to one of the plurality of unit regions 312 . In more detail, each of the first touch electrodes P1 , the second touch electrodes P2 , and the first bridges B1 overlaps with one of the plurality of unit regions 312 . Further, the line width W2 of the mesh structure is smaller than the line width W1 of the light shielding pattern layer 310. Therefore, even if the material of the touch electrode layer 322 is a metal having a light-shielding property, the touch display panel 10 can maintain a certain brightness.

In addition to the touch electrode layer 322 described above, the touch element layer 320 further includes a plurality of second bridge lines B2.

Referring to FIG. 1 and FIG. 5, the second bridge B2 is located on the opposite substrate 300, and the second bridge B2 is used to electrically connect the second touch electrodes P2. The material of the second bridge wire B2 may be the same as the material of the touch electrode layer 322, such as a metal, a transparent conductive material or other suitable conductive material.

Further, the second touch string L2 includes a plurality of second touch electrodes P2 and a plurality of second bridge lines B2. The plurality of second touch strings L2 are disposed in parallel with each other and are not electrically connected. The second bridge line B2 connects the adjacent two second touch electrodes P2 to extend the second touch string L2 along the first direction D1, and the plurality of second touch strings L2 are arranged along the second direction D2. In addition, in FIG. 5, similar to the first touch electrode P1, the second touch electrode P2, and the first bridge B1, the second bridge B2 is also composed of a mesh structure, and the mesh structure and shading The pattern layer 310 is correspondingly disposed. Therefore, each of the openings H2 in the second bridge line B2 likewise corresponds to one of the plurality of unit regions 312, respectively. In more detail, each of the openings H2 in the second bridge line B2 overlaps with one of the plurality of unit regions 312, respectively. In this embodiment, the line width W3 of the mesh structure of the second bridge line B2 is substantially the same as the line width W2 of the mesh structure of the first touch electrode P1, the second touch electrode P2, and the first bridge B1. Therefore, even if the material of the second bridge wire B2 is a metal having a light-shielding property, the touch display panel 10 can maintain a certain brightness similarly.

Referring to FIG. 1 again, the first insulating layer 330 is located between the touch electrode layer 322 and the plurality of second bridge lines B2 and covers the touch electrode layer 322. First insulation The layer 330 is used to electrically insulate the first bridge line B1 from the second bridge line B2. The material of the first insulating layer 330 is, for example, an inorganic material, an organic material or a combination thereof, wherein the inorganic material is, for example, tantalum oxide, tantalum nitride, hafnium oxynitride, hafnium aluminum oxide or a stacked layer of at least two of the above materials. However, the invention is not limited thereto, and any material which can provide insulating properties can be selectively applied to the first insulating layer 330 of the present invention.

Referring to FIG. 1 and FIG. 6 , a plurality of light-shielding strips 340 are disposed on the first insulating layer 330 , wherein the light-shielding strips 340 are disposed corresponding to the light-shielding pattern layer 310 and are in an electrically floating state, and the width W4 of the light-shielding strips 340 is smaller than the light-shielding pattern. The line width W1 of layer 310. In the present embodiment, the material of the light shielding strip 340 includes a material having a light blocking property, such as a metal, a metal oxide, a metal nitride or other suitable material. The metal is, for example, aluminum, copper, silver, gold, titanium, molybdenum, tungsten, chromium, palladium, rhodium, iridium, ruthenium, etc., and alloys or laminates thereof.

In particular, the light-shielding strip 340 and the second bridge wire B2 can be formed by the same process, so that the second bridge wire B2 and the light-shielding bar 340 are made of the same material, so that the number of existing processes can be increased without increasing the number of existing processes. At the same time, the second bridge wire B2 and the light shielding strip 340 are formed. In other words, the first insulating layer 330 can electrically insulate the light-shielding strip 340 from the corresponding touch electrode layer 320 in addition to electrically insulating the first bridge wire B1 from the second bridge wire B2.

In detail, referring to FIG. 3 and FIG. 6 simultaneously, the light-shielding strip 340 is located above the light-shielding pattern 314 arranged along the first direction D1 of the light-shielding pattern layer 310, in other words, the light-shielding strip 340 corresponds to the edge of the light-shielding pattern layer 310. The light shielding pattern 314 extending in the two directions D2 is disposed. In addition, the light shielding strips 340 correspond to the unit areas 312 and are separated from each other. Off-site setting. Further, the light shielding strip 340 is disposed only above the light shielding pattern 314 arranged along the first direction D1, and is not disposed above the light shielding pattern 316 arranged along the second direction D2, which will reduce the light shielding strip 340 and the touch The parasitic capacitance between the control electrode layers 322. From another perspective, the position at which the light bar 340 is disposed spatially overlaps the data line 130. However, those of ordinary skill in the art will appreciate that the light bar 340 and the data line 130 may be completely overlapping or partially overlapping.

In addition, please refer to FIG. 1 and FIG. 6 at the same time, the light-shielding strip 340 is correspondingly disposed on the boundary in the second direction D2 of the adjacent color filter pattern 350 (described in the related description), and thus has a light-shielding pattern. The similar function of layer 310 is to effectively mask the non-pure light produced by adjacent color filter patterns 350. In the present specification, the term "non-pure light" means non-red, non-blue, and non-green light.

It should be noted that, as shown in FIG. 1 , if the first insulating layer 330 exists between the light shielding pattern layer 310 and the color filter pattern 350 (described in the related description below), the user touches when viewed laterally. The non-pure color light emitted from the control display panel 10 cannot be blocked by the light-shielding pattern layer 310, which causes a problem of deterioration in display quality. In the present embodiment, the color filter pattern 350 (described in the following description) is directly overlaid on the light-shielding strip 340, which enables the light-shielding strip 340 to shield the non-pure light that cannot be shielded by the light-shielding pattern layer 310. The touch display panel 10 still has good display quality when the user views it laterally.

Further, in the present embodiment, the width W4 of the light shielding strip 340 is, for example, greater than 4 μm. In other words, the width W4 of the light shielding strip 340 needs to satisfy the line width W1 of the light shielding pattern layer 310 and is larger than 4 μm. However, the invention does not use 4 microns For the limit. It will be understood by those of ordinary skill in the art that the range of dimensions of the width W4 of the visor 340 may vary as a function of process limits and process variations. In addition, in the embodiment, the first touch electrode P1, the second touch electrode P2, and the first bridge B1 have a mesh structure, and the width W4 of the light shielding strip 340 can be equal to or greater than the line width W2 of the mesh structure. .

In addition, although the light shielding strip 340 is disposed in a regular manner corresponding to the light shielding pattern layer 310, the present invention is not limited thereto. In other embodiments, the light shielding strip 340 may also be disposed corresponding to the light shielding pattern layer 310 in a random or any regular manner. For example, in FIG. 1 , although the touch display panel 10 of the illustrated portion is provided with three light shielding strips 340 , depending on different setting manners, only two or one of them may be disposed or not provided. Therefore, those skilled in the art can adjust the position of the light bar 340 according to actual needs.

Here, in order to more clearly explain the relationship between the light shielding pattern layer 310, the touch element layer 320 and the light shielding strip 340, please refer to FIG.

In FIG. 7 , the mesh structure of the touch element layer 320 is disposed corresponding to the light shielding pattern layer 310 , and the light shielding strip 340 is disposed only corresponding to the light shielding patterns 314 arranged along the first direction D1 in the light shielding pattern layer 310 . It should be noted that the description of the light-shielding pattern layer 310, the touch element layer 320 and the light-shielding strip 340 should be understood by those in the prior art. The touch element layer 320 in FIG. 7 may be a touch electrode. A portion of the layer 322 (ie, the first touch electrode P1, the second touch electrode P2, or a portion of the first bridge B1). In addition, in order to clearly illustrate the arrangement relationship between the light-shielding pattern layer 310, the touch element layer 320, and the light-shielding strip 340, the illustration is omitted in FIG. An insulating layer 330.

Referring again to FIG. 1 , the plurality of color filter patterns 350 are disposed corresponding to the cell region 312 and cover the second bridge line B2 and the light shielding strip 340 . The color filter pattern 350 includes a red filter pattern, a green filter pattern, or a blue filter pattern.

Referring to FIG. 1, the counter electrode 360 is located on the color filter pattern 350. The material of the counter electrode 360 includes indium tin oxide, indium zinc oxide, aluminum zinc oxide, or the like, and a mixture or laminate thereof.

In this embodiment, the touch display panel 10 may further include a second insulating layer 352. The second insulating layer 352 is disposed between the color filter pattern 350 and the opposite electrode 360, and has a function of protection and insulation. The material of the second insulating layer 352 is, for example, an inorganic material, an organic material, or a combination thereof, wherein the inorganic material is, for example, tantalum oxide, tantalum nitride, hafnium oxynitride, hafnium aluminum oxide, or a stacked layer of at least two of the above materials. However, the invention is not limited thereto, and any material which can provide insulating properties can be selectively applied to the second insulating layer 352 of the present invention.

It is worth mentioning that the opposite substrate 300, the light shielding pattern layer 310, the touch element layer 320 (the touch electrode layer 322 and the second bridge line B2), the first insulating layer 330, and the light shielding strip 340 mentioned above are mentioned. The color filter pattern 350 can be used as the touch panel in the touch display panel 10. In addition, in the present embodiment, the touch element layer 320 is integrated in the display panel (the display panel herein refers to the structure formed by the substrate 110 and the opposite substrate 300 and the display medium 200 therebetween). That is, the touch display panel 10 is an in-cell touch display panel.

FIG. 8 is a shading diagram of a touch display panel according to another embodiment of the invention. A perspective view of the arrangement relationship between the layer of the layer, the layer of the touch element, and the portion of the light-shielding strip. 8 and FIG. 7 , the embodiment of FIG. 8 is similar to the embodiment of FIG. 7 , and therefore the same components as those of FIG. 7 are denoted by the same reference numerals and will not be repeated.

The difference between the embodiment of FIG. 8 and the embodiment of FIG. 7 is that the mesh structure of the touch element layer 320' of FIG. 8 has a plurality of broken regions 370, and the light blocking strips 340 are disposed corresponding to the broken regions 370. As such, the touch display panel of the embodiment of FIG. 8 can further reduce the parasitic capacitance generated between the light shielding strip 340 and the corresponding touch element layer 320'.

In particular, the content of the touch display panel of the present invention is described by taking the touch display panel 10 as an example. Those skilled in the art should understand the structure of the touch display panel of the embodiment of FIG. In other words, the touch display panel of the embodiment of FIG. 8 is similar to the touch display panel 10 of the embodiment of FIG. 1 , that is, the touch display panel of the embodiment of FIG. 8 further includes a pixel array substrate 100 , a display medium 200 , The opposite substrate 300, the first insulating layer 330, the color filter pattern 350, and the opposite electrode 360, and the non-solid color light generated by the adjacent color filter pattern 350 can be further shielded by the light shielding strip 340, thereby providing good display quality. The touch display panel of the embodiment of FIG. 8 is different from the touch display panel 10 described above in that the mesh structure of the touch element layer 320 ′ in the touch display panel of FIG. 8 has a blackout structure. Strip 340 corresponds to wire break zone 370. In addition, in order to clearly illustrate the arrangement relationship between the light-shielding pattern layer 310, the touch element layer 320' and the light-shielding strip 340, the first insulating layer 330 is omitted from FIG.

In addition, similar to the touch element layer 320 of FIG. 7 , the touch element of FIG. 8 The layer 320' may also be part of the touch electrode layer 322' (ie, the first touch electrode P1', the second touch electrode P2', or a portion of the first bridge B1').

In addition, in the above embodiments, the touch element layer 320 (the touch electrode layer 322 and the second bridge line B2) and the touch element layer 320' (the touch electrode layer 322' and the second bridge line B2) are both The mesh structure is taken as an example for explanation, but the present invention is not limited thereto. In other words, the touch element layer of the touch display panel of the present invention may also have other configurations known to those skilled in the art, which will be described below with reference to FIGS. 9 and 10.

FIG. 9 is a cross-sectional view of a touch display panel according to still another embodiment of the present invention. FIG. 10 is a schematic diagram of the touch electrode layer and the second bridge line of FIG. 9. The sectional position of Fig. 9 corresponds to the position of the line B-B' of Fig. 10. Referring to FIG. 9 and FIG. 1 , the touch display panel 20 of FIG. 9 is similar to the touch display panel 10 of FIG. 1 . Therefore, the same components as those of FIG. 1 are denoted by the same reference numerals and will not be repeated.

The difference between the touch display panel 20 of FIG. 9 and the touch display panel 10 of FIG. 1 is that the structure of each component in the touch component layer 420 of FIG. 9 and the structure of each component in the touch component layer 320 of FIG. different. Referring to FIG. 10 and FIG. 5, in FIG. 10, the touch electrode layer 422 (the first touch electrode P1), the second touch electrode P2", and the first bridge B1") in the touch element layer 420 and The second bridge wire B2" is composed of a block structure, and in FIG. 5, the first touch electrode P1, the second touch electrode P2, the first bridge B1, and the second in the touch element layer 320 The bridge wires B2 are respectively composed of a mesh structure. In addition, in the embodiment, the material of the touch element layer 420 is preferably a transparent conductive material. Transparent conductive material such as indium tin oxide Compounds, indium zinc oxides, aluminum zinc oxides, and the like, as well as mixtures or laminates thereof.

In addition, although the above-described touch display panel 10 is described in detail with reference to the touch display panel 10, it should be understood by those skilled in the art that the light-shielding strip 340 in the touch display panel 20 of FIG. 9 can further The non-pure color light generated by the adjacent color filter patterns 350 is shielded, so that the user can display the display panel 20 with good display quality when viewed from the side.

As described above, in the touch panel and the touch display panel provided in the above embodiments, by providing the light-shielding strip corresponding to the light-shielding pattern layer, the non-pure light that cannot be shielded by the light-shielding pattern layer can be further shielded, and thus The touch display panel still has good display quality when viewed laterally. In addition, the parasitic capacitance can be reduced by providing a light-shielding strip only in a single direction or a design having a broken line region through the touch electrode layer.

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

10‧‧‧Touch display panel

100‧‧‧ pixel array substrate

110‧‧‧Substrate

130‧‧‧Information line

144‧‧‧ pixel electrodes

200‧‧‧Display media

300‧‧‧ opposite substrate

310‧‧‧Lighting pattern layer

320‧‧‧Touch element layer

322‧‧‧Touch electrode layer

330‧‧‧First insulation

340‧‧‧shading strip

350‧‧‧Color filter pattern

352‧‧‧Second insulation

360‧‧‧ opposite electrode

B2‧‧‧Second bridge wiring

P2‧‧‧second touch electrode

W1, W2, W3, W4‧‧‧ width

Claims (8)

A touch panel includes: a substrate; a light shielding pattern layer disposed on the substrate, wherein the light shielding pattern layer defines a plurality of unit regions on the substrate, and the light shielding pattern layer has a light shielding arranged along the first direction a pattern and a light shielding pattern arranged along the second direction; a touch electrode layer is disposed on the substrate, the touch electrode layer includes a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first bridge wires electrically connected to the first touch electrodes; a plurality of second bridge wires disposed on the substrate for electrically connecting the second touch electrodes; a first insulating layer located at the Between the touch electrode layer and the plurality of second bridge wires; a plurality of light shielding strips are disposed on the substrate, wherein the light shielding strips are disposed corresponding to the light shielding pattern layer and are in an electrically floating state, and the light shielding strips are The width is smaller than the line width of the light shielding pattern layer, wherein the light shielding strips are located above the light shielding patterns arranged along the first direction, the light shielding strips are disposed corresponding to the unit regions, and the light shielding strips are separated from each other Come A plurality of color filter patterns, some of the cell region should be provided. The touch panel of claim 1, wherein each of the first touch electrodes and each of the second touch electrodes is formed by a mesh structure, and the first touch electrodes and Mesh junctions of the second touch electrodes The first bridge wire and each of the second bridge wires are respectively formed by a mesh structure, and the first bridge wires and the mesh structures of the second bridge wires are respectively configured. Corresponding to the light shielding pattern layer; the width of the light shielding strips is not less than the line width of the mesh structure; and the width of the light shielding strips is greater than 4 micrometers. The touch panel of claim 1, wherein each of the first touch electrodes and each of the second touch electrodes is formed by a mesh structure, and the first touch electrodes and The mesh structure of the second touch electrodes is disposed corresponding to the light shielding pattern layer; and the mesh structures of the first touch electrodes and the second touch electrodes have a plurality of broken lines, and the The light bar corresponds to the setting. The touch panel of claim 1, wherein the first touch electrodes and the second touch electrodes have an isolation region between the first touch electrodes and the first The two touch electrodes are separated from each other, and a part of the light shielding strips are disposed in the isolation region. A touch display panel includes: a pixel array substrate, comprising a plurality of scan lines, a plurality of data lines, and a plurality of pixel structures; a pair of substrates located above the pixel array substrate; a light shielding pattern layer, Located on the opposite substrate, wherein the light shielding pattern layer defines a plurality of unit regions corresponding to the pixel structures on the opposite substrate; a touch electrode layer is disposed on the opposite substrate, the touch electrode layer includes a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first touch electrodes electrically connected a first bridge wire; a first insulating layer covering the touch electrode layer; a plurality of second bridge wires on the first insulating layer for electrically connecting the second touch electrodes; a light-shielding strip is disposed on the opposite substrate, wherein the light-shielding strips are disposed corresponding to the light-shielding pattern layer and are in an electrically floating state, and the width of the light-shielding strip is smaller than a line width of the light-shielding pattern layer, wherein the light-shielding strips Substantially overlapping the data lines, and the light shielding strips are separated from each other; a plurality of color filter patterns are disposed corresponding to the unit regions; and a pair of electrodes are disposed on the color filter patterns. The touch display panel of claim 5, wherein each of the first touch electrodes and each of the second touch electrodes is formed by a mesh structure, and the light shielding pattern layer and the The first touch electrodes and the mesh structures of the second touch electrodes are correspondingly disposed; each of the first bridge wires and each of the second bridge wires are respectively formed by a mesh structure, and the first bridge wires are And the mesh structure of the second bridge wires is disposed corresponding to the light shielding pattern layer; the width of the light shielding strips is not less than the line width of the mesh structure; and the width of the light shielding strips is greater than 4 micrometers. The touch display panel of claim 5, wherein: Each of the first touch electrodes and each of the second touch electrodes is formed by a mesh structure, and the light shielding pattern layer and the first touch electrodes and the second touch electrodes are mesh structures. Corresponding to the setting; and the mesh structures of the first touch electrodes and the second touch electrodes have a plurality of disconnecting regions, which are disposed corresponding to the light blocking strips. The touch display panel of claim 5, further comprising a display medium between the opposite electrode and the pixel array substrate, wherein the first touch electrodes and the second touches An isolation region is disposed between the electrodes, so that the first touch electrodes and the second touch electrodes are separated from each other, and some of the light shielding strips are disposed in the isolation region.