TW201500999A - Touch display panel and touch display apparatus - Google Patents

Abstract

The invention discloses a touch display panel which includes a first substrate, a second substrate and a touch electrode layer. The first substrate has a plurality of first vias, a first surface and a second surface opposite to the first surface, and the first vias pass through the first surface and the second surface. The second substrate is disposed opposite to the first substrate. The touch electrode layer is disposed on the first substrate, which is on the same side with the first surface. The touch electrode layer electrically connects to one side of the second surface of the first substrate by the first vias. This invention also discloses a touch display apparatus.

Description

Touch display panel and touch display device

The invention relates to a touch display panel and a touch display device.

With the advancement of technology, various information devices have been continuously introduced, such as mobile phones, tablet computers, ultra-thin notebooks, and satellite navigation. In addition to keyboard or mouse input or manipulation, the use of touch technology to manipulate information devices is a fairly intuitive and popular way to manipulate. Among them, the touch display panel has a user-friendly and intuitive input operation interface, so that users of any age can directly select or manipulate information devices with a finger or a stylus, and thus are increasingly favored by the market.

Generally, there are two types of touch display devices, one is to set a touch electrode layer in a display panel (for example, a liquid crystal display panel) to be an in-cell touch display panel; the other is In addition to the display panel, a touch panel is additionally added to become an on cell touch display panel. In the case of the more common external touch display panel, the touch panel must be electrically connected to the drive circuit by a flexible printed circuit (FPC). Then, it is electrically connected to another flexible printed circuit, and is connected to an external control chip through a flexible printed circuit to act as an electrode of the touch electrode layer. As a result, the display panel and the touch panel respectively require a flexible printed circuit, which causes an increase in the volume of the touch display device. However, the current demand for touch display devices is becoming thinner and lighter.

Therefore, how to provide a touch display panel and a touch display device can be one of the important topics by forming a lighter and thinner structure by its novel design.

An object of the present invention is to provide a touch display panel and a touch display device. With its structurally novel design, the use of flexible printed circuits can be reduced and a thinner and lighter structure can be formed.

The present invention provides a touch display panel including a first substrate, a second substrate, and a touch electrode layer. The first substrate has a plurality of first through holes and an opposite first surface and a second surface, and the first through holes penetrate the first surface and the second surface. The second substrate is disposed opposite to the first substrate. The touch electrode layer is disposed on the same side of the first surface of the first substrate, and the touch electrode layer is electrically connected to one side of the second surface of the first substrate by the first through holes.

In an embodiment of the invention, a first conductive material is disposed on the interior or the wall of the first through hole.

In one embodiment of the present invention, the touch display panel further includes a driving integrated circuit disposed on the second surface of the first substrate and electrically connected to the touch electrode layer.

In one embodiment of the present invention, the touch display panel further includes a driving integrated circuit and an electrical connecting component. One end of the electrical connecting component is electrically connected to the second surface of the first substrate, and the touch electrode The layer is electrically connected, and the driving integrated circuit is electrically connected to the touch electrode layer by an electrical connection.

In one embodiment of the present invention, the first substrate further has a patterned conductive layer, and the patterned conductive layer is disposed on the second surface of the first substrate, and is electrically connected to the touch through the first through holes. Electrode layer.

In an embodiment of the invention, the touch display panel further includes a joining element disposed between the first substrate and the second substrate.

In one embodiment of the invention, the link comprises a sealant.

In one embodiment of the invention, the connecting member has a second conductive material, and the touch electrode layer is electrically connected to the second substrate through the first through holes and the second conductive material.

In one embodiment of the present invention, the connecting member has at least one second through hole, and the second through hole is at least partially disposed corresponding to one of the first through holes, and the touch electrode layer is formed by the first through hole and The second through hole is electrically connected to the second substrate.

In an embodiment of the invention, the second substrate further has a patterned conductive layer, and the touch electrode layer is electrically connected to the patterned conductive layer by the first through holes and the connecting member.

In an embodiment of the invention, the first through holes are at least partially located at the first base The area of contact between the board and the link.

In one embodiment of the present invention, the touch display panel further includes a conductive connecting member disposed between the first substrate and the second substrate, and the conductive connecting member is electrically connected to the first through holes.

In an embodiment of the invention, the first through holes are at least partially located in a contact area of the first substrate and the conductive connecting member.

In an embodiment of the invention, the touch display panel further includes a protective substrate, and the touch electrode layer is disposed on the protective substrate and located between the protective substrate and the first substrate.

In one embodiment of the present invention, the touch display panel further includes a third conductive material disposed between the touch electrode layer and the first substrate, and the touch electrode layer is formed by the third conductive material and the first The through hole is electrically connected to the second surface of the first substrate.

In one embodiment of the present invention, the touch display panel further includes another touch electrode layer, the touch electrode layer is disposed on one side of the first substrate, and the other touch electrode layer is disposed on the other side of the first substrate. Or the same side.

In an embodiment of the invention, the touch electrode layer further has a plurality of metal wires extending from the touch electrode layer to the first through holes.

In an embodiment of the invention, the touch display panel comprises a liquid crystal display panel or an organic light emitting diode display panel.

The present invention further provides a touch display device including a light source module and a touch display panel. The touch display panel includes a first substrate, a second substrate, and a touch electrode layer. The first substrate has a plurality of first through holes and an opposite first surface and a second surface, and the first through holes penetrate the first surface and the second surface. The second substrate is disposed opposite to the first substrate. The touch electrode layer is disposed on one side of the first substrate, and the touch electrode layer is electrically connected to the second surface of the first substrate through the first through holes, wherein the first substrate is disposed on one side of the light source module .

As described above, in the touch display panel and the touch display device of the present invention, the touch display panel has a first substrate, and the first substrate has a first through hole design, and the touch electrode layer is disposed in The same side of the first surface of the first substrate enables the electrode of the touch electrode layer to be electrically connected to the second surface of the first substrate through the first through hole. In this way, the touch electrode layer can be The circuit layer on the first substrate is electrically connected to the driving circuit of the touch electrode layer, which not only reduces the material cost, but also reduces the space occupied by the electrical connector.

1, 2, 3, 4, 5‧‧‧ touch display panel

11, 21, 31, 41, 51‧‧‧ first substrate

111, 111a, 111b, 211, 311, 411, 511‧‧‧ first through hole

112, 212, 312, 412, 512‧‧‧ first surface

113, 213, 313, 413, 513‧‧‧ second surface

114, 214‧‧‧ first conductive material

12, 22, 32, 42, 52‧‧‧ second substrate

121, 215, 321, 421, 521‧‧‧ patterned conductive layers

13, 13a, 23, 33, 43, 53‧‧ ‧ touch electrode layer

131‧‧‧Drive electrodes

132‧‧‧Induction electrode

133‧‧‧Metal wire

14, 24, 34, 44, 54‧‧‧ links

141, 441, 541‧‧‧ second conductive material

141a‧‧‧Second hole

15, 25, 35, 45‧‧‧ liquid crystal layer

16, 16a, 26, 36, 46, 56‧‧‧ drive integrated circuits

17, 27, 37, 47, 57‧‧‧ electrical connectors

38‧‧‧Electrical connection

48‧‧‧ Third conductive material

49‧‧‧Protected substrate

6‧‧‧Organic LED layer

61‧‧‧ anode layer

62‧‧‧ organic material layer

63‧‧‧ cathode layer

B‧‧‧Light source module

D1, D2‧‧‧ touch display device

L1, L2, L3, L4‧‧‧ width

P1, P2‧‧‧ polarizing plate

1A is a cross-sectional view of a touch display panel according to a first embodiment of the present invention.

FIG. 1B is a schematic top view of the touch electrode layer shown in FIG. 1A.

FIG. 1C is a schematic view of another embodiment of the touch electrode layer shown in FIG. 1A.

FIG. 1D is a schematic view of another embodiment of the joint shown in FIG. 1A.

FIG. 1E is a schematic top view of the touch display panel shown in FIG. 1A.

FIG. 1F is a schematic diagram of another embodiment of the driving integrated circuit shown in FIG. 1E.

2 is a cross-sectional view of a touch display panel according to a second embodiment of the present invention.

3 is a cross-sectional view of a touch display panel according to a third embodiment of the present invention.

4 is a cross-sectional view of a touch display panel according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a touch display device according to an embodiment of the invention.

FIG. 6 is a cross-sectional view of a touch display device according to still another embodiment of the present invention.

The touch display panel and the touch display device according to the preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals. The drawings of all the embodiments of the present invention are merely illustrative and do not represent true dimensions and proportions.

1A is a cross-sectional view of a touch display panel according to a first embodiment of the present invention. Please refer to FIG. 1A. The touch display panel 1 includes a first substrate 11 , a second substrate 12 , and a touch electrode layer 13 . The touch display panel 1 can be a liquid crystal touch display panel or an organic light emitting diode (OLED) touch display panel. The touch display panel 1 is exemplified by a liquid crystal touch display panel.

The first substrate 11 and the second substrate 12 are disposed opposite to each other, and the materials of the first substrate 11 and the second substrate 12 may include glass, plastic or other light transmissive materials, and the materials of the first substrate 11 and the second substrate 12 may be the same. Or not the same. The first substrate 11 has a plurality of first through holes 111 and a first surface 112 and a second surface 113. The first through holes 111 pass through the first through hole 111. A surface 112 and a second surface 113, that is, the first through hole 111 penetrates the first substrate 11 such that the first surface 112 and the second surface 113 are coupled to each other by the first through hole 111. In addition, the first substrate 11 is a color or monochromatic filter substrate. Here, a color filter (CF) substrate is taken as an example, and the second substrate 12 is a thin film transistor (Thin-Film). Transistor, TFT) substrate. In other embodiments, the black matrix layer and the filter layer on the color filter substrate may also be respectively disposed on the thin film transistor substrate, so that the second substrate 12 becomes a BOA (BM on array) substrate. Or become a COA (color filter on array) substrate.

Preferably, a first conductive material 114 is disposed on the inner or hole wall of the first through hole 111. The first conductive material 114 may be disposed or filled in the hole wall or the hole of the hole to form a conductive first through hole 111, in other words, in the glass perforation process, after the first substrate 11 is formed with a vertically conductive hole. The first conductive material 114 is integrated with the first through hole 111, so that the first through hole 111 has an electrically conductive property. The conductive material first conductive material 114 can be, for example but not limited to, a metal material, a conductive silver paint or various conductive adhesives, and preferably an anisotropic conductive film (ACF) to ensure a touch electrode. The electrode on the surface of the layer 13 can be electrically connected to the second surface 113 of the first substrate 11 through the first through hole 111.

The touch electrode layer 13 is disposed on the same side of the first surface 11 of the first substrate 11. The first surface 112 and the touch electrode layer 13 are located at the same side. A substrate 11 is away from one side of the second substrate 12. In general, the touch electrode layer 13 is a transparent conductive layer including a plurality of electrodes, such as, but not limited to, indium-tin oxide (ITO) or indium zinc oxide ( Indium-zinc oxide, IZO). The electrode of the touch electrode layer 13 can be electrically connected to one side of the second surface 113 of the first substrate 11 through the first through hole 111. In other words, on one side of the second surface 113 of the first substrate 11, in addition to the second substrate 12, other components (for example, the connecting member 14, which will be described in detail later) and the electrodes of the touch electrode layer 13 may be disposed. The second substrate 12 and other components on the side of the second surface 113 of the first substrate 11 can be electrically connected to the first via hole 111.

FIG. 1B is a schematic top view of the touch electrode layer shown in FIG. 1A, please refer to FIG. 1A and FIG. 1B simultaneously. The touch electrode layer 13 further includes a plurality of driving electrodes 131 and a plurality of sensing electrodes 132. The driving electrodes 131 and the sensing electrodes 132 are strip-shaped and staggered with each other, and formed with a plurality of interlaced points (intermediate spacing) Insulation material is not electrically connected) The double-layer structure senses a leakage current formed by a user's touch on the surface of the touch display panel 1. The driving electrode 131 and the sensing electrode 132 on the touch electrode layer 13 can be electrically connected to the second surface 113 of the first substrate 11 through the first through hole 111. In addition, as shown in FIG. 1C , FIG. 1C is a schematic diagram of another embodiment of the touch electrode layer shown in FIG. 1A , and the double layer structure formed by the staggered arrangement of the driving electrode 131 and the sensing electrode 132 may be one of the touches. The electrode layer 13 is disposed on one side of the first substrate 11 , and the other touch electrode layer 13 a is disposed on the other side of the first substrate 11 . In other embodiments, the driving electrode 131 and the sensing electrode 132 may also be block-shaped and formed together in a single-layer structure.

Referring to FIG. 1A and FIG. 1B , in the first embodiment, the touch electrode layer 13 further has a plurality of metal wires 133 extending from the electrode edge of the touch electrode layer 13 , for example, the driving electrode 131 and the sensing electrode 132 . To the first through hole 111a (the dotted line indicates the position corresponding to the first through hole). The driving electrode 131 and the sensing electrode 132 can be electrically connected to the second surface 113 of the first substrate 11 through the first through hole 111 by the connection of the metal wire 133 and the first through hole 111a. In other embodiments, the touch electrode layer 13 may of course not need to have the metal wire 133, and the first through hole 111b (the position corresponding to the first through hole in the dotted line in the figure) is correspondingly disposed on the driving electrode 131 and the sensing. The periphery of the electrode 132 allows the driving electrode 131 and the sensing electrode 132 to be electrically connected to the second surface 113 of the first substrate 11 directly through the first through hole 111b.

In addition, referring to FIG. 1A , the touch display panel 1 further includes a bonding element 14 disposed between the first substrate 11 and the second substrate 12 for connecting the first substrate 11 and the second substrate. 12, further, the first substrate 11, the second substrate 12, and the connecting member 14 form an accommodating space. In the first embodiment, the touch display panel 1 is a liquid crystal display panel, so that the liquid crystal layer 15 is disposed in the accommodating space. In other words, the liquid crystal layer 15 is disposed between the first substrate 11 and the second substrate 12, and a connecting member 14 is looped around the liquid crystal layer 15 . The link 14 comprises an adhesive and may also be referred to as a sealant, such as, but not limited to, a thermosetting sealant or a UV curable sealant. In this embodiment, the connecting member 14 has a second conductive material 141. The second conductive material 141 can be, for example but not limited to, a metal material, a conductive silver paste or various conductive adhesives, and preferably has a spherical configuration. The square conductive material allows the touch electrode layer 13 to be electrically connected to the second substrate 12 through the first through hole 111 and the second conductive material 141. In addition, in the embodiment, the second conductive material 141 is an anisotropic conductive material having a spherical configuration, so that the connecting member 14 only conducts electrical conductivity in the vertical direction. The horizontal direction is covered by an adhesive and insulated from each other.

1D is a schematic view of another embodiment of the connecting member shown in FIG. 1A. As shown in FIG. 1D, the connecting member 14 of the present embodiment has a second through hole 141a, wherein the connecting member 14 can form a vertical conductive electrical The holes, in particular, the holes are formed by drilling, and then filled with a conductive material, like the first conductive material 114 and the second conductive material 141 (as shown in FIG. 1A), such as but not limited to, for example, but not limited to, a metal material Conductive silver lacquer or various conductive pastes, such as anisotropic conductive paste, to form a second through hole 141a having conductive properties. The second through hole 141a is at least partially disposed corresponding to one of the first through holes 111, that is, the positions of the first through hole 111 and the second through hole 141a correspond to each other, so that the first conductive hole of the first through hole 111 is electrically conductive. The material 114 can be interconnected with the conductive material filled in the second through hole 141a, so that the touch electrode layer 13 can be electrically connected to the second substrate 12 through the first through hole 111 and the second through hole 141a of the connecting member 14. Sexual connection.

The position where the first through hole 111 and the second through hole 141a are connected to each other may be continuous or discontinuous. Specifically, in the embodiment, the aperture of the second through hole 141a and the corresponding first through hole 111 are When the apertures are substantially equal, and the second through holes 141a and the first through holes 111 are disposed corresponding to each other, the phase connection is formed to be continuous. Of course, in other embodiments, the aperture of the second through hole 141a and the corresponding aperture of the first through hole 111 may also be different to form a discontinuity in the connection, and only the second through hole 141a is required to be at least The portion is disposed corresponding to the first through hole 111, so that the touch electrode layer 13 can be electrically connected to the second substrate 12 through the first through hole 111 and the second through hole 141a.

Referring to FIGS. 1A and 1D , the first through hole 111 is at least partially located in a contact area of the first substrate 11 and the connecting member 14 . For example, the first through holes 111 may be located at a contact area of the first substrate 11 and the connecting member 14 , or partially at a contact area of the first substrate 11 and the connecting member 24 , and another portion is located outside the connecting member 14 . In the present embodiment, the first through holes 111 are all located in the contact area of the first substrate 11 and the connecting member 14. Preferably, the first through hole 111 is at least partially in contact with the second conductive material 141 (as in FIG. 1A) or in the contact area with the second through hole 141a (FIG. 1D).

In this embodiment, the second substrate 12 is a thin film transistor substrate having a plurality of pixel electrodes, data lines and scanning lines arranged in a staggered manner, and the like. In addition to the conventional circuit of the thin film transistor substrate, the second substrate 12 may further have a patterned conductive layer 121, the material of which is exemplified. For example, but not limited to, indium tin oxide, indium zinc oxide, metal, graphene or other conductive material, at least partially exposed on the surface of the second substrate 12 close to the liquid crystal layer 15, the driving electrode on the touch electrode layer 13 The 131 and the sensing electrode 132 are electrically connected to the patterned conductive layer 121 on the second substrate 12 by the conductive first through hole 111 and the second conductive material 141 in the connecting member 14 .

FIG. 1E is a schematic top view of the touch display panel shown in FIG. 1A, please refer to FIG. 1A and FIG. 1E simultaneously. The touch display panel 1 further includes a driving integrated circuit 16 and an electrical connecting member 17. The driving integrated circuit 16 can drive and control the display of the touch display panel 1. The electrical connecting member 17 can be, for example but not limited to, data. Confluence, flexible printed circuit (FPC) board or soft and hard board. In the first embodiment, the electrical connector 17 is a flexible printed circuit board, and one end thereof is electrically connected to the patterned conductive layer 121 of the second substrate 12 and electrically connected to the driving integrated circuit 16 at the same time. The electrical connector 17 can be directly provided with the driving integrated circuit 16, that is, the driving integrated circuit 16 is packaged on the electrical connecting member 17 by a chip on-film (COF) process, so that the integrated circuit is driven. The first through hole 111 and the connecting member 14 are electrically connected to the touch electrode layer 13 . In the embodiment of the present invention, the driving integrated circuit 16 can not only drive and control the display of the touch display panel 1 but also electrically connect with the touch electrode layer 13 to drive and receive the signals generated by the touch electrode layer 13. Further, the touch position (or gesture) of the user on the outer surface of the touch display panel 1 is determined. In addition, in other embodiments, the driving integrated circuit 16 can also be disposed on a rigid circuit board, and one end of the electrical connecting member 17 is electrically connected to the patterned conductive layer 121 of the second substrate 12, and the other end is electrically The driving integrated circuit 16 is electrically connected to the touch electrode layer 13 through the first through hole 111 and the connecting member 14. The invention is not limited thereto. Therefore, the touch electrode layer 13 can electrically connect the touch electrode layer 13 from the first surface 112 of the first substrate 11 to the second through the first through hole 111 by using the first through hole 111 of the present invention. The surface 113 is electrically connected to the patterned conductive layer 121 of the second substrate 12 via the connecting member 14 to be electrically connected to the driving integrated circuit 16 of the touch display panel 1 . In this way, not only the material cost can be reduced, but also the space occupied by the electrical connector 17 can be reduced.

1F is a schematic view of another embodiment of the driving integrated circuit shown in FIG. 1E. As shown in FIG. 1F, the driving integrated circuit 16a may be directly disposed on the second substrate 12. detailed In other words, the driving integrated circuit 16a is provided on the surface of the second substrate 12 directly by the die-on-glass (COG) technology, or by the first through hole 111 and The connecting member 14 is electrically connected (refer to FIG. 1A). Similarly, the touch electrode layer 13 is electrically connected to the second substrate 12 through the first through hole 111 and the connecting member 14 to be electrically connected to the driving integrated circuit 16 a of the touch display panel 1 .

In addition, as shown in FIG. 1A , the area of the display surface of the touch display panel 1 is substantially the area corresponding to the liquid crystal layer 15 , and the width is L1 , and the area of the touch electrode layer 13 is The area of the touch surface may be the width L2 of the first substrate 11. As shown in the figure, the width L2 is greater than the width L1, that is, the area of the touch surface is larger than the area of the display surface. Therefore, when the user operates on the touch surface of the touch display panel 1, the touch operation range can be activated by an area other than the display surface, and the frame glue can be detected (outside the display surface). ) touch action.

2 is a cross-sectional view of a touch display panel according to a second embodiment of the present invention. Please refer to FIG. 2 . The touch display panel 2 of the second embodiment is similarly a liquid crystal display panel, and the first substrate 21 of the second embodiment is a thin film transistor substrate, and the second substrate 22 is a color or monochrome filter substrate. And the first substrate 21 is a substrate (light exit side) that is relatively close to the user. The present invention does not limit the dimensional relationship between the first substrate 21 and the second substrate 22 (also not limited in other embodiments). In other words, the size of the first substrate 21 may be smaller than, equal to, or larger than the size of the second substrate 22. For example, the size of the first substrate 21 is larger than the size of the second substrate 22, and the touch electrode layer 23 corresponds to the first substrate 21 and is disposed on the lower surface of the first substrate 21, and the patterned conductive layer is patterned. The 215 is disposed on the surface of the first substrate 21 near the liquid crystal layer 25. In this embodiment, since the size of the first substrate 21 is larger than the size of the second substrate 22, the difference between the width L4 and the width L3 is more than the width L4 of the touch surface is larger than the width L3 of the display surface. An embodiment is more apparent. Therefore, when the user operates on the touch surface of the touch display panel 2, the touch operation range can be activated by the area outside the display surface, and a wider range of touches other than the frame glue can be detected. action.

Similarly, the first substrate 21 and the second substrate 22 are opposite to each other. The first substrate 21 also has a plurality of first through holes 211 and opposite first surfaces 212 and second surfaces 213. The first through holes 211 penetrate the first surface. 212 and second surface 213. And preferably, the first through hole 211 A first conductive material 214 is also disposed on the inner wall or the hole wall to form a conductive first through hole 211 to ensure that the touch electrode layer 23 can be electrically connected to the first surface 212 by the first through hole 211. Connected to the second surface 213 of the first substrate 21.

In the second embodiment, the second surface 213 of the first substrate 21 (thin film transistor substrate) has a plurality of pixel electrodes and data lines and scan lines arranged in a staggered manner, and the first substrate 21 may further have a patterned conductive layer. The layer 215 is formed on the first substrate 21 and is on the same side as the second surface 213. The driving electrodes and the sensing electrodes on the touch electrode layer 23 can be borrowed from the first embodiment. The first through hole 211 is electrically connected to the patterned conductive layer 215. In other words, the touch display panel 2 further includes a driving integrated circuit 26 and an electrical connecting member 27. In the second embodiment, one end of the electrical connecting member 27 is electrically connected to the patterned conductive layer 215. The driving integrated circuit 26 is packaged on the electrical connector 27. The touch electrode layer 23 can be electrically connected to the second surface 213 of the first substrate 21 via the first through hole 211 and electrically connected to the patterned conductive layer 215 to drive the integrated circuit with the touch display panel 1 . 26 electrical connection. In addition, in other embodiments, the driving integrated circuit 26 can be directly disposed (COG) on the second surface 213 of the first substrate 21, and the touch electrode layer 23 is driven by the first through hole 211 and the integrated integrated circuit. 26 electrical connection, the details of which can refer to the first embodiment, and will not be described herein. Or the driving integrated circuit 26 is disposed on the rigid circuit board, and one end of the electrical connecting member 27 is electrically connected to the patterned conductive layer 215 of the first substrate 21, and the other end is electrically connected to the rigid circuit board.

In addition, the touch display panel 2 also includes a connecting member 24 for connecting the first substrate 21 and the second substrate 22, so that the first substrate 21, the second substrate 22, and the connecting member 24 form an accommodating space. The liquid crystal layer 25 is disposed in the space. The joining member 24 of the second embodiment is an adhesive (such as a sealant), which may be, for example but not limited to, a heat-curable frame sealant or a UV-curable frame sealant.

FIG. 3 is a cross-sectional view of a touch display panel according to a third embodiment of the present invention. Please refer to FIG. 3 . For a majority of the structure of the touch display panel 3 of the third embodiment, reference may be made to the first embodiment. In addition to the connecting member 34, the touch display panel 3 further includes a conductive connecting member 38 disposed on the first substrate 31 and The first through holes 311 are at least partially located in the contact area of the first substrate 31 and the conductive connecting member 38, so that the conductive connecting member 38 can be electrically connected to the first through hole 311. Therefore, the joint member 34 of the third embodiment is the same as the second embodiment, and is an adhesive (such as a sealant), which may be, for example, but not limited to, a heat-curable sealant or a UV-curable sealant. Does not have a conductive material. In addition, the conductive connecting member 38 may be located on the outer side or the inner side of the connecting member 34, and is preferably disposed on the outer side of the connecting member 34, such that the first through hole 311 is located at a position near the outer edge of the first substrate 31, and the touch electrode layer 33 A wide range of electrodes can be set. Since the driving integrated circuit 36 is electrically connected to the circuit on the second substrate 32, the touch electrode layer 33 can be electrically connected to the second substrate 32 through the conductive first through hole 311 and the conductive connecting member 38. Further, it is electrically connected to the driving integrated circuit 36.

4 is a cross-sectional view of a touch display panel according to a fourth embodiment of the present invention. Please refer to FIG. 4 . The fourth embodiment is an example in which the touch electrode layer 43 is disposed on an additional protective substrate 49. This aspect may be referred to as On Glass Solution (OGS), and the protective substrate 49 is a transparent substrate. For glass or plastic. Similarly, the structure of most of the touch display panel 4 of the fourth embodiment can be referred to the first embodiment. In addition, the touch display panel 4 further includes a third conductive material 48 disposed between the touch electrode layer 43 and the first substrate 41, preferably on the second surface of the first substrate 41. 413 or the touch electrode layer 43 corresponding to the four sides of the surface of the first substrate 41, the third conductive material 48 is spaced apart from the touch electrode layer 43 to electrically connect the touch electrode layer 43 and the conductive first through hole 411 . The arrangement of the spacings may be determined according to the distribution of the electrodes or metal wires on the touch electrode layer 43 (please refer to the first embodiment). The touch electrode layer 43 can be electrically connected to the second surface 413 of the first substrate 41 by the third conductive material 48 and the first through hole 411. In other words, in the fourth embodiment, the first substrate 41, the second substrate 42, the connecting member 44, and the liquid crystal layer 45 can be regarded as a display panel without a touch layer, that is, a display panel without a touch function. The control electrode layer 43 and the protective substrate 49 are provided on the side of the display panel having no touch function. In addition, a space between the touch electrode layer 43 and the first substrate 41, that is, a space formed by the third conductive material 48, an upper polarizing plate P1 may be disposed, and the lower polarizing plate P2 is disposed on the second substrate 42. The lower surface, the invention is not limited thereto. Further, the protective substrate 49 is bonded to the first substrate 41, and the touch electrode layer 43 is provided on the protective substrate 49 and between the protective substrate 49 and the first substrate 41.

FIG. 5 is a cross-sectional view of a touch display device according to an embodiment of the invention. Please refer to FIG. 5 first. The present invention further discloses a touch display device D1, which includes a light source module B and a touch display panel 1 as described above, that is, the touch display panel 1 of the foregoing embodiments (2 to 4, the following only displays by touch Panel 1 description) is combined with the light source module B Touch display device D1. In this embodiment, the light source module B is a backlight module, such as but not limited to a Cold Cathode Fluorescent Lamp (CCFL), a Hot Cathode Fluorescent Lamp (HCFL), or Light emitting diode (LED).

The touch display panel 1 includes a first substrate 11 , a second substrate 12 , and a touch electrode layer 13 . The first substrate 11 has a plurality of first through holes 111 and a first surface 112 and a second surface 113. The first through holes 111 penetrate the first surface 112 and the second surface 113. The second substrate 12 is disposed opposite to the first substrate 11. The touch electrode layer 13 is disposed on the same side of the first surface 112 of the first substrate 11 , and the touch electrode layer 13 is electrically connected to the second surface 112 of the first substrate 11 through the first through hole 111 . In this embodiment, the light source module B is disposed on a side close to the second substrate 12 (the second embodiment is disposed on a side close to the first substrate 21).

FIG. 6 is a cross-sectional view of a touch display device according to still another embodiment of the present invention. Please refer to FIG. 6 . The touch display device D2 is exemplified by an Organic Light-Emitting Diode (OLED) display device, and the light source module is an organic light-emitting diode (OLED) component module. The touch display device D2 includes a touch display panel 5 and a light source module (organic light emitting diode layer 6), and the first substrate 51 can be a glass, plastic or other light transmissive substrate, as a substrate for packaging, and There are a plurality of first through holes 511, and the second substrate 52 is a light transmissive or opaque substrate, and has a thin film electric matrix matrix (TFT matrix) circuit.

In addition, the accommodating space formed by the first substrate 51, the second substrate 52, and the connecting member 54 is provided with an organic light emitting diode layer 6 as a light source module. In other words, the first substrate 51 is disposed on the light source module ( One side of the organic light-emitting diode layer 6). The organic light-emitting diode layer 6 includes an anode layer 61, an organic material layer 62 (including an emission layer and a conductive layer), and a cathode layer 63. For the sake of brevity, the number of the organic light-emitting diode layers 6 is exemplified by one, and the different pixels or sub-pixels are not distinguished. Of course, the organic light-emitting diode layer 6 having a plurality of regions may be accommodated in the accommodation space. The touch electrode layer 53 can also be electrically connected to the patterned conductive layer 521 of the second substrate 52 by the first through holes 511 and the connecting member 54 . For other related components and connection relationships of the touch display panel, reference may be made to the foregoing, and no further details are provided herein.

In summary, in the touch display panel and the touch display device of the present invention, the touch display panel has a first substrate, and the first substrate has a first through hole design, and the touch control The pole layer is disposed on the same side of the first surface of the first substrate, so that the electrode of the touch electrode layer can be electrically connected to the second surface of the first substrate by the first through hole. In this way, the touch electrode layer can be electrically connected to the driving circuit of the touch electrode layer via the circuit layer on the first substrate, which not only reduces the material cost, but also reduces the space occupied by the electrical connector.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧Touch display panel

11‧‧‧First substrate

111‧‧‧ first through hole

112‧‧‧ first surface

113‧‧‧ second surface

114‧‧‧First conductive material

12‧‧‧second substrate

121‧‧‧ patterned conductive layer

13‧‧‧Touch electrode layer

14‧‧‧Links

141‧‧‧Second conductive material

15‧‧‧Liquid layer

16‧‧‧Drive integrated circuit

17‧‧‧Electrical connectors

L1, L2‧‧‧ width

Claims (19)

A touch display panel includes: a first substrate having a plurality of first through holes and an opposite first surface and a second surface, the first through holes penetrating the first surface and the second surface; a second substrate disposed opposite to the first substrate; and a touch electrode layer disposed on a same side of the first surface of the first substrate, wherein the touch electrode layer is electrically connected to the first through hole Optionally connected to one side of the second surface of the first substrate. The touch display panel of claim 1, wherein a first conductive material is disposed on an inner wall or a hole wall of the first through holes. The touch display panel of claim 1, further comprising: a driving integrated circuit disposed on the second surface of the first substrate and electrically connected to the touch electrode layer. The touch display panel of claim 1, further comprising: a driving integrated circuit; and an electrical connecting member, one end of which is electrically connected to the second surface of the first substrate, and The touch electrode layer is electrically connected, and the driving integrated circuit is electrically connected to the touch electrode layer by the electrical connecting member. The touch display panel of claim 1, wherein the first substrate further has a patterned conductive layer, and the patterned conductive layer is disposed on the second surface of the first substrate, and The first through hole is electrically connected to the touch electrode layer. The touch display panel of claim 1, further comprising: a connecting member disposed between the first substrate and the second substrate. The touch display panel of claim 6, wherein the link comprises a frame seal. The touch display panel of claim 6, wherein the connecting member has a second conductive material, and the touch electrode layer is coupled to the second through the first through holes and the second conductive material The substrate is electrically connected. The touch display panel of claim 6, wherein the connecting member has at least one second through hole, and the second through hole is at least partially disposed corresponding to one of the first through holes, the touch The control electrode layer is electrically connected to the second substrate through the first through hole and the second through hole. The touch display panel of claim 8 or 9, wherein the second substrate further has a patterned conductive layer, wherein the touch electrode layer is coupled to the first through hole and the connecting member The patterned conductive layer is electrically connected. The touch display panel of claim 6, wherein the first through holes are at least partially located in a contact area of the first substrate and the connecting member. The touch display panel of claim 6, further comprising: a conductive connecting member disposed between the first substrate and the second substrate, wherein the conductive connecting member is electrically connected to the first through holes Sexual connection. The touch display panel of claim 12, wherein the first through holes are at least partially located in a contact area of the first substrate and the conductive connecting member. The touch display panel of claim 1, further comprising: a protective substrate, the touch substrate is disposed on the protective substrate and located on the protective substrate and the first substrate between. The touch display panel of claim 14, further comprising: a third conductive material disposed between the touch electrode layer and the first substrate, wherein the touch electrode layer is supported by the third conductive The material and the first through holes are electrically connected to the second surface of the first substrate. The touch display panel of the first aspect of the invention, further comprising: another touch electrode layer, the touch electrode layer is disposed on one side of the first substrate, and the other touch electrode layer is disposed on the The other side or the same side of the first substrate. The touch display panel of claim 1, wherein the touch electrode layer further has a plurality of metal wires extending from the touch electrode layer to the first through holes. The touch display panel of claim 1, comprising a liquid crystal display panel or an organic light emitting diode display panel. A touch display device includes: a light source module; and a touch display panel, comprising: a first substrate having a plurality of first through holes and a first surface and a second surface disposed opposite to each other; a first hole penetrates the first surface and the second surface, and a second substrate is disposed opposite to the first substrate, and a touch electrode layer is disposed on one side of the first substrate, and the touch electrode layer is electrically connected to the second surface of the first substrate by the first through holes, wherein the first substrate is disposed on the second substrate One side of the light source module.