TWI656466B - Touch display panel - Google Patents

Abstract

A touch display panel includes a substrate, a touch element, a buffer layer, and Display element. The touch element is disposed on the substrate. The touch element includes a first touch circuit, a second touch circuit, and an insulation layer. The first touch circuit has a plurality of first loop circuits. The second touch circuit has a plurality of second loop circuits. The second loop line overlaps the first loop line, and the width of the second loop line is greater than or equal to the width of the first loop line. The insulating layer is located between the first touch circuit and the second touch circuit. The buffer layer covers the touch element. The display element is disposed on the buffer layer. The display element includes a plurality of first display electrodes, a plurality of second display electrodes, and a plurality of light-emitting diode crystal grains. The light-emitting diode crystal grains are located in a region surrounded by the first ring-shaped circuit.

Description

Touch display panel

The present invention relates to a display panel, and in particular to a touch display panel.

The touch display panel includes a touch element and a display element. At present, touch elements are roughly divided into resistive touch elements, capacitive touch elements, optical touch elements, acoustic wave touch elements, and electromagnetic touch elements according to their sensing methods. Capacitive touch elements can be characterized by fast response time, good reliability, and high durability. Therefore, a touch display panel with a capacitive touch element can be widely used in electronic products.

In general, the layout design of the touch element and the layout design of the display element need to consider the positional relationship between the wirings and / or with other components. The overall circuit layout of the touch display panel may waste the space of the panel and limit the design of the touch panel.

A touch display panel according to an embodiment of the present invention includes a substrate and a touch element. Components, buffer layers, and display elements. The touch element is disposed on the substrate. The touch element includes a first touch circuit, a second touch circuit, and an insulation layer. The first touch circuit has a plurality of first loop circuits. The second touch circuit has a plurality of second loop circuits and is electrically insulated from the first touch circuit. The first touch circuit is located between the second touch circuit and the substrate. The second loop line overlaps the first loop line, and the width of the second loop line is greater than or equal to the width of the first loop line. The insulating layer is located between the first touch circuit and the second touch circuit. The buffer layer covers the touch element. The display element is disposed on the buffer layer. The display element includes a first display electrode, a second display electrode, and a plurality of light emitting diode crystal grains. The light emitting diode crystal grains are electrically connected to the first display electrode and the second display electrode. The light-emitting diode crystal grains are located in a region surrounded by the first ring-shaped circuit.

A touch display panel according to an embodiment of the present invention includes a substrate, a touch element, a buffer layer, and a display element. The touch element is disposed on the substrate. The touch element includes a first touch circuit, a second touch circuit, and an insulation layer. The first touch circuit has a plurality of loop circuits. The second touch circuit has a plurality of chip circuits and is electrically insulated from the first touch circuit. The first touch circuit is located between the second touch circuit and the substrate. The sheet line overlaps the loop line, and the area of the sheet line is greater than or equal to the area surrounded by the loop line. The insulating layer is located between the first touch circuit and the second touch circuit. The buffer layer covers the touch element. The display element is disposed on the buffer layer. The display element includes a first display electrode, a second display electrode, and a plurality of light emitting diode crystal grains. The light emitting diode crystal grains are electrically connected to the first display electrode and the second display electrode. The light-emitting diode grains are located in a region surrounded by the ring-shaped line.

A touch display panel according to an embodiment of the present invention includes a substrate and a touch element. Components, display elements, and buffer layers. The touch element is disposed on the substrate. The touch element includes a plurality of first touch circuits, a plurality of second touch circuits, and an insulating layer. The second touch circuit is electrically insulated from the first touch circuit. The insulating layer is located between the first touch circuit and the second touch circuit. The display element is disposed on the substrate. The display element includes a plurality of first display electrodes, a plurality of second display electrodes, a plurality of light emitting diode dies, and a plurality of driving circuits. The second display electrode is disposed across the first display electrode. The first touch circuit and the second touch circuit overlap the first display electrode, or the first touch circuit and the second touch circuit overlap the second display electrode. The area of the first touch circuit and the area of the second touch circuit are smaller than or equal to the area of the first display electrode, or the area of the first touch circuit and the area of the second touch circuit are less than or equal to the second display electrode Area. The light emitting diode crystal grains are electrically connected to the first display electrode and the second display electrode. The driving circuit is electrically connected to the corresponding second display electrode. The driving circuit and the first display electrode are in the same film layer, or the driving circuit and the second display electrode are in the same film layer. The buffer layer is located between the touch element and the display element.

A touch display panel according to an embodiment of the present invention includes a substrate, a touch element, and a display element. The touch element is disposed on the substrate. The touch element includes a plurality of first touch circuits, a plurality of second touch circuits, and an insulating layer. The second touch circuit is electrically insulated from the first touch circuit. The insulating layer is located between the first touch circuit and the second touch circuit. The display element is disposed on the substrate. The display element includes a plurality of first display electrodes, a plurality of second display electrodes, a plurality of light emitting diode dies, and a plurality of driving circuits. The second display electrode is disposed across the first display electrode. The first touch circuit is the same film layer as the first display electrode, or the first touch circuit is the same film as the second display electrode Floor. The second touch circuit and the first display electrode are in the same film layer, or the second touch circuit and the second display electrode are in the same film layer. The light emitting diode crystal grains are electrically connected to the first display electrode and the second display electrode. The driving circuit is electrically connected to the corresponding second display electrode. The driving circuit and the first display electrode are in the same film layer, or the driving circuit and the second display electrode are in the same film layer.

In order to make the present invention more comprehensible, embodiments are described below in detail with reference to the accompanying drawings.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000‧‧‧touch display panel

110‧‧‧ substrate

120, 420, 620‧‧‧ touch elements

121‧‧‧The first insulation layer

622, 1822a, 1822b ‧‧‧ conductive via

130, 530, 630, 630a, 630b, 730, 830, 830a, 830b, 830c, 930, 1030, 1130, 1230, 1330, 1430, 1530, 1630, 1830 ‧‧‧ first touch line

1031, 1831‧‧‧The first sub-touch circuit

1832‧‧‧Second touch circuit

133‧‧‧The first ring circuit

1035, 1435‧‧‧‧First auxiliary electrode

140, 440, 540, 640, 740, 840, 940, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840, 1940, 2040

1441, 1841, 1941, 2041‧‧‧ the third sub touch line

1842, 2042‧‧‧ Fourth sub-touch circuit

143‧‧‧Second Ring Circuit

444‧‧‧Flake line

1445‧‧‧Second auxiliary electrode

150‧‧‧ buffer layer

160‧‧‧Display element

161‧‧‧First display electrode

162‧‧‧Second display electrode

163, 163R, 163G, 163B, 263‧‧‧ light-emitting diode grains

164‧‧‧Second insulation layer

165, 166‧‧‧ conductive vias

671, 771, 871, 1271, 1370‧‧‧bridged lines

872‧‧‧connection line

180, 180a, 180b‧‧‧Drive circuit

191‧‧‧encapsulation layer

192‧‧‧Reflective layer

193, 393‧‧‧ protective layer

133R‧‧‧area

133W, 133RW, 143W‧‧‧Width

161a, 162a, 180c‧‧‧ extension direction

PU, PU1, PU2 ‧‧‧ pixel units

R‧‧‧ area

L‧‧‧light

FIG. 1A is a schematic bottom view of a touch display panel according to a first embodiment of the present invention.

FIG. 1B is a schematic bottom view of a touch display panel according to the first embodiment of the present invention.

FIG. 1C is a schematic diagram of a region R in FIG. 1B.

FIG. 1D is a schematic diagram of a part of the film layer in FIG. 1C.

Fig. 1E is a schematic cross-sectional view taken along the line A-A 'in Fig. 1B.

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

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

FIG. 4A is a portion of a touch display panel according to a fourth embodiment of the present invention. Sub-schematic.

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

FIG. 5 is a schematic bottom view of a touch display panel according to a fifth embodiment of the present invention.

6A is a schematic bottom view of a touch display panel according to a sixth embodiment of the present invention.

Fig. 6B is a schematic cross-sectional view taken along the line C-C 'in Fig. 6A.

FIG. 7 is a schematic partial cross-sectional view of a touch display panel according to a seventh embodiment of the present invention.

FIG. 8 is a schematic bottom view of a touch display panel according to an eighth embodiment of the present invention.

FIG. 9 is a schematic bottom view of a touch display panel according to a ninth embodiment of the present invention.

FIG. 10 is a schematic bottom view of a touch display panel according to a tenth embodiment of the present invention.

11 is a schematic bottom view of a touch display panel according to an eleventh embodiment of the present invention.

FIG. 12 is a schematic bottom view of a touch display panel according to a twelfth embodiment of the present invention.

13 is a schematic bottom view of a touch display panel according to a thirteenth embodiment of the present invention.

14 is a schematic bottom view of a touch display panel according to a fourteenth embodiment of the present invention.

15 is a schematic bottom view of a touch display panel according to a fifteenth embodiment of the present invention.

16 is a schematic bottom view of a touch display panel according to a sixteenth embodiment of the present invention.

FIG. 17 is a schematic bottom view of a touch display panel according to a seventeenth embodiment of the present invention.

18 is a schematic bottom view of a touch display panel according to an eighteenth embodiment of the present invention.

19 is a schematic bottom view of a touch display panel according to a nineteenth embodiment of the present invention.

20 is a schematic bottom view of a touch display panel according to a twentieth embodiment of the present invention.

The invention is explained more fully with reference to the drawings of this embodiment. However, the present invention may be embodied in various forms and should not be limited to the embodiments described herein. The thicknesses of layers and regions in the drawings are exaggerated for clarity. The same or similar reference numbers indicate the same or similar elements, and the following paragraphs will not repeat them one by one.

FIG. 1A is a schematic bottom view of a touch display panel according to a first embodiment of the present invention. FIG. 1B is a touch display according to the first embodiment of the present invention Schematic view of a part of the panel. Specifically, FIG. 1B is a schematic bottom view of one of the pixel units PU in a touch display panel 100 according to the first embodiment of the present invention. In addition, for simplicity, the second circular circuit 143 of the second touch circuit 140 is omitted in FIGS. 1A and 1B. FIG. 1C is a schematic diagram of a region R in FIG. 1B. FIG. 1D is a schematic diagram of a part of the film layer in FIG. 1C. Specifically, FIG. 1D is a schematic diagram of the first loop line 133 of the first touch line 130 and the second loop line 143 of the second touch line 140 in FIG. 1C. Fig. 1E is a schematic cross-sectional view taken along the line A-A 'in Fig. 1B.

Please refer to FIGS. 1A to 1E together. The touch display panel 100 of this embodiment includes a substrate 110 (shown in FIG. 1E), a touch element 120, a buffer layer 150, and a display element 160. In this embodiment, the substrate 110 may be a rigid substrate or a flexible substrate with visible light transmission, so that the light L emitted from the display element 160 is transmitted through. For example, the material of the foregoing rigid substrate is, for example, glass or other rigid materials, and the material of the foregoing flexible substrate is, for example, polyimide (PI), polycarbonate (PC), or polyamide (polyamide; PA), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethyleneimine (PEI), polyurethane (polyurethane; PU), polydimethylsiloxane (PDMS), acrylic polymer such as polymethylmethacrylate (PMMA), etc., ether polymer such as poly Polyethersulfone (PES), polyetheretherketone (PEEK), etc., polyolefin, thin glass, or other flexible materials, but the present invention is not limited thereto.

The touch element 120 is disposed on the substrate 110. The touch element 120 includes a plurality of first touch circuits 130, a plurality of second touch circuits 140, and a first insulating layer 121. The first insulating layer 121 is located between the first touch circuit 130 and the second touch circuit 140 to electrically insulate the first touch circuit 130 and the second touch circuit 140 from each other. The first insulating layer 121 may be made of an inorganic material, including: silicon oxide (SiO _x ), silicon nitride (SiN _x ), silicon oxynitride (SiON), aluminum oxide (AlO _x ), and aluminum nitride ( AlON) or similar. In other embodiments, the first insulating layer 121 may be made of an organic material, which includes: polyimide (PI), polycarbonate (PC), and polyamide (PA). , Polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethyleneimine (PEI), polyurethane (PU), polydiethylene Polymethylsiloxane (PDMS), acrylic polymer (polymethylmethacrylate, PMMA), etc., and ether polymer (polyethersulfone), for example PES) or polyetheretherketone (PEEK), etc., polyolefins or other analogs or combinations thereof. In other feasible embodiments, organic materials and inorganic materials may be alternately stacked to form the first insulating layer 121.

In this embodiment, the first touch circuit 130 and the second touch circuit 140 are different conductive film layers, and the first touch circuit 130 is located between the second touch circuit 140 and the substrate 110. The first touch circuit 130 and the second touch circuit 140 intersect each other More configured to form multiple sensing arrays. In other words, each sensing array may be a range surrounded by two adjacent first touch lines 130 and two adjacent second touch lines 140. The first touch circuit 130 and the second touch circuit 140 are adapted to sense electrical changes generated by a user's touch. If a user touches the touch display panel 100, the electrical changes sensed by the first touch circuit 130 and the second touch circuit 140 in the corresponding sensing array can be controlled by a layer connected to the touch element 120. Device (not shown) detected and identified.

The display element 160 is disposed on the substrate 110, and a buffer layer 150 is provided between the display element 160 and the touch element 120 to separate the touch element 120 and the display element 160. In this embodiment, the buffer layer 150 may be a dielectric layer covering the touch element 120. For example, the buffer layer 150 may be made of an inorganic material, including: silicon oxide (SiO _x ), silicon nitride (SiN _x ), silicon oxynitride (SiON), aluminum oxide (AlO _x ), and oxynitride. Aluminum (AlON) or the like. In other embodiments, the buffer layer 150 may be composed of an organic material, which includes: polyimide (PI), polycarbonate (PC), polyamide (PA), polymer Polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethyleneenimine (PEI), polyurethane (PU), polydimethyl Polydimethylsiloxane (PDMS), acrylic polymer (polymethylmethacrylate, PMMA), etc., ether polymer (polyethersulfone (PES)) Or polyetheretherketone (PEEK), etc., polyolefin or other analogs or combinations thereof. In other feasible embodiments, organic materials and inorganic materials may be alternately stacked to form the buffer layer 150.

In this embodiment, the buffer layer 150 has, for example, a flat upper surface, so that the subsequent display element 160 can be fabricated on the flat upper surface. In addition, the buffer layer 150 can block the penetration of oxygen and / or moisture. In detail, when the touch display panel 100 is a flexible touch display panel, in the production of the flexible touch display panel, in addition to overcoming the problem of manufacturing a touch display panel with a flexible substrate, In addition, the packaging process of the display element 160 also increases difficulty due to the flexible substrate. For example, in a hard touch display panel, the aforementioned hard substrate can be used to block the penetration of air, which is beneficial to prevent moisture and oxygen in the air from damaging the display element 160. The barrier capability of the flexible substrate made of the aforementioned flexible material may not be able to meet the gas barrier requirements of the display element 160 during the packaging process. At this time, the buffer layer 150 having a barrier function can be used to prevent air from penetrating the flexible substrate and affect the display element 160. Further, forming the buffer layer 150 between the touch element 120 and the display element 160 can reduce the crosstalk between the display signal and the sensing signal, thereby improving the display and touch of the touch display panel 100 according to the embodiment of the present invention. quality.

The display element 160 includes a plurality of first display electrodes 161, a plurality of second display electrodes 162, a second insulating layer 164 (shown in FIG. 1E), a plurality of light emitting diode dies 163, and a plurality of driving circuits 180. The second display electrode 162 and the first display electrode 161 are arranged in a crossover manner, and the second display electrode 162 and the first display electrode 161 are located in the light-emitting two. Between the polar body grains 163 and the substrate 110. The second insulating layer 164 is located between the first display electrode 161 and the second display electrode 162 to electrically insulate the first display electrode 161 and the second display electrode 162 from each other. The driving circuit 180 may be electrically connected to the second display electrode 162 through a conductive via 166 penetrating the second insulating layer 164. The driving circuit 180 and the second display electrode 162 are in the same film layer, and the driving circuit 180 and the second display electrode 162 may have different extending directions, and may be different from a driving chip (not shown) located on the touch display panel 100 side. Electrical connection.

In this embodiment, a material or a forming method of the second insulating layer 164 may be the same or similar to a material or a forming method of the first insulating layer 121, but the present invention is not limited thereto. Materials of the first display electrode 161, the second display electrode 162, and the driving circuit 180 may be transparent conductive materials or opaque conductive materials. The aforementioned transparent conductive material is, for example, indium tin oxide (ITO), indium zinc oxide (IZO), and the like, and the aforementioned opaque conductive material is, for example, metal.

In this embodiment, the first touch circuit 130 and the first display electrode 161 overlap, and the second touch circuit 140 and the second display electrode 162 overlap. The area of the first touch circuit 130 is smaller than or equal to the area of the first display electrode 161, and the area of the second touch circuit 140 is smaller than or equal to the area of the second display electrode 162. Integrating the touch element 120 and the display element 160 into the touch display panel 100 can reduce the influence of the first touch circuit 130 or the second touch circuit 140 of the touch element 120 on the display quality, and can also be used in wiring design ( layout) to improve the space utilization of the touch display panel 100.

In some embodiments, the first touch line 130 and the second display line may also be used. The display electrode 162 overlaps, and the second touch circuit 140 and the first display electrode 161 overlap. The area of the first touch circuit 130 is smaller than or equal to the area of the second display electrode 162. The area is smaller than or equal to the area of the second display electrode 162.

The display element 160 has a plurality of pixel units PU arranged in an array, and each pixel unit PU is composed of a corresponding first display electrode 161, a second display electrode 162, and a light emitting diode die 163. In this embodiment, each pixel unit PU includes, for example, three light-emitting diode crystal grains 163R, 163G, and 163B. The three light emitting diode grains 163R, 163G, and 163B can emit light of different colors, but the present invention is not limited thereto. The light-emitting diode crystal grains 163 are, for example, lateral type light-emitting diode crystal grains, and are electrically connected to the first display electrode 161 and the second display electrode 162 in a flip-chip bonding manner. Each light-emitting diode grain 163 in the same pixel unit PU is electrically connected to the corresponding first display electrode 161, and the light-emitting diode grains 163 in the same pixel unit PU are electrically connected through corresponding conductive channels. The hole 165 is electrically connected to the same second display electrode 162.

In this embodiment, the touch element 120 is disposed between the display element 160 and the substrate 110, and the touch display panel 100 may be a bottom emission display panel as an example. That is, the light L emitted from the light-emitting diode die 163 can pass through the second insulating layer 164, the buffer layer 150, the first insulating layer 121, and the substrate 110 to the outside.

In this embodiment, the first touch circuit 130 has a plurality of first loop circuits 133, and the second touch circuit 140 has a plurality of second loop circuits 143, and emits light. The diode crystal 163 is located in a region 133R surrounded by the corresponding first ring-shaped line 133. The second ring-shaped line 143 overlaps the plurality of first ring-shaped lines 133, and the width 143W of the second ring-shaped line 143 is greater than or equal to the width 133W of the first ring-shaped line 133. That is, the orthographic projection of the first annular circuit 133 on the substrate 110 will be within the range covered by the orthographic projection of the second annular circuit 143 on the substrate 110. If the first touch circuit 130 is a sensing electrode and the second touch circuit 140 is a driving electrode, the second touch circuit 140 can be used to reduce the first display electrode 161 and / or the second display electrode 162 to the first electrode. Interference generated by a touch circuit 130. In this way, the interference of the display signal on the sensing signal can be reduced, thereby improving the touch quality of the touch display panel 100 according to the embodiment of the present invention.

As shown in FIG. 1E, in this embodiment, the first ring-shaped circuit 133 may not overlap the light-emitting diode die 163. Therefore, the interference of the display signal on the sensing signal can be further reduced, and the touch quality of the touch display panel 100 can be further improved.

In this embodiment, the width 133W of the first loop line 133 or the width 143W of the second loop line 143 is between 1.1 micrometers (μm) and 11 microns, and the width of the second loop line 143 is 143W. It is greater than or equal to the width 133W of the first loop line 133.

In this embodiment, the width 133RW of the area 133R surrounded by each of the first circular lines 133 is between 5 μm and 100 μm, or the area of the area 133R surrounded by each of the first circular lines 133 is between 25 square microns to 1000 square microns. In one embodiment, the light-emitting diode grains 163 corresponding to the area 133R surrounded by the first ring-shaped line 133 may be micro-light-emitting diodes. (micro LED; μ LED) die.

In this embodiment, the touch display panel 100 may further include an encapsulation layer 191, a reflection layer 192, and a protection layer 193 which are sequentially covered on the display element 160. The material of the encapsulation layer 191 is, for example, polymethyl methacrylate, polycarbonate, silicone, or the like. The encapsulation layer 191 can at least encapsulate the light-emitting diode die 163, which can improve Protective power to the light-emitting diode grains 163. The material of the reflective layer 192 is, for example, a metal or a polymer including titanium dioxide particles or other similar light reflective particles, so that the reflective layer 192 has the property of reflecting light L and can improve the luminous efficiency of the touch display panel 100. The material of the protective layer 193 is, for example, silicon oxide, silicon nitride, or other suitable insulating, water-blocking, and / or gas-blocking materials.

FIG. 2 is a schematic partial cross-sectional view of a touch display panel according to a second embodiment of the present invention. In addition, for simplicity, the components or film layers included in the touch element 120 are omitted in FIG. 2.

Please refer to FIG. 1A to FIG. 1E and FIG. 2 at the same time. The touch display panel 200 of this embodiment is similar to the touch display panel 100 of the first embodiment. The light emitting diode die 263 is, for example, a vertical type. The light-emitting diode crystal grains 263 are located between the first display electrode 261 and the second display electrode 262.

In this embodiment, the material of the second display electrode 262 is, for example, metal, so that the second display electrode 262 has a property of reflecting light and can improve the luminous efficiency of the touch display panel 200.

In this embodiment, the configuration of the first display electrode 261 may be similar to that of the first display electrode 161 of the foregoing embodiment, and the wiring design of the second display electrode 262 may be the same as that of the second display electrode 162 of the foregoing embodiment. The wiring design is similar, but the present invention is not limited to this.

FIG. 3 is a schematic partial cross-sectional view of a touch display panel according to a third embodiment of the present invention. In addition, for simplicity, the components or film layers included in the touch element 120 are omitted in FIG. 3.

Please refer to FIG. 1A to FIG. 1E and FIG. 3 at the same time. The touch display panel 300 of this embodiment is similar to the touch display panel 100 of the first embodiment. The display element 160 is disposed between the touch element 120 and the substrate 110.

In this embodiment, the protective layer 393 may be located between the touch element 120 and the display element 160 to at least encapsulate the light-emitting diode crystal grains 163, and the protection ability of the light-emitting diode crystal grains 163 can be improved.

In this embodiment, the touch display panel 300 is a top emission display panel as an example. In other words, the light L emitted from the light-emitting diode die 163 can pass through the protective layer 393 and the touch element 120 to the outside.

FIG. 4A is a partial schematic diagram of a touch display panel according to a fourth embodiment of the present invention. 4B is a schematic partial cross-sectional view of a touch display panel according to a fourth embodiment of the present invention. Specifically, please refer to FIG. 1B. The area shown in FIG. 4A may be similar to the area shown in area R in FIG. 1B, and FIG. 4B may be a schematic cross-sectional view taken along line B-B 'in FIG. 4A.

Please refer to FIG. 1A to FIG. 1E and FIG. 4A to FIG. 4B simultaneously. The touch display panel 400 is similar to the touch display panel 100 of the first embodiment. The touch element 420 includes a plurality of first touch lines 130, a plurality of second touch lines 440, and a first insulating layer 121. The first touch circuit 130 has a plurality of first loop circuits 133, and the second touch circuit 440 has a plurality of chip circuits 444, and the light emitting diode die 163 is located around the corresponding first loop circuit 133. Within the area. The sheet line 444 overlaps the plurality of first loop lines 133, and the area of the sheet line 444 is greater than or equal to the area 133R surrounded by the first loop line 133. That is, the orthographic projection of the first ring-shaped circuit 133 on the substrate 110 will be within the range covered by the orthographic projection of the sheet-like circuit 444 on the substrate 110. If the first touch circuit 130 is a sensing electrode and the second touch circuit 440 is a driving electrode, the second touch circuit 440 can be used to reduce the first display electrode 161 and / or the second display electrode 162 to the first electrode. Interference generated by a touch circuit 130. In this way, the interference of the display signal on the sensing signal can be reduced, thereby improving the touch quality of the touch display panel 400 according to the embodiment of the present invention.

In this embodiment, the area of the region 133R surrounded by the first ring-shaped circuit 133 may be between 25 square micrometers and 1000 square micrometers, and the area of the sheet-shaped circuit 444 is greater than or equal to that of the first ring-shaped circuit 133. The area of the region 133R.

FIG. 5 is a schematic bottom view of a touch display panel according to a fifth embodiment of the present invention. Please refer to FIG. 1A to FIG. 1E and FIG. 5 at the same time. The touch display panel 500 of this embodiment is similar to the touch display panel 100 of the first embodiment. The touch element 520 includes a plurality of first touch lines 530, multiple Two second touch lines 540 and a first insulating layer 121 (as shown in FIG. 1E). First touch line 530 and second touch The lines 540 have the same extending direction, and the first touch line 530 and the second touch line 540 may be the same film layer.

In this embodiment, the extension direction of the first touch line 530 and the second touch line 540 is the same as the extension direction 161a of the first display electrode 161, but the present invention is not limited thereto. In other embodiments, the extension direction of the first touch line 530 and the second touch line 540 may be the same as the extension direction 162 a of the second display electrode 162.

In this embodiment, in a normal direction perpendicular to the substrate 110 (as shown in FIG. 1E), the first touch line 530 and the second touch line 540 do not overlap the light emitting diode die 163 and the first A connection node between the display electrode 161 and the second touch line 540 (such as the conductive via 165 shown in FIG. 1E) to reduce the interference between the display signal and the sensing signal, thereby improving the touch of the embodiment of the present invention. Display and touch quality of the display panel 500.

In this embodiment, the driving circuit 180 and the first display electrode 161 are the same film layer, but the present invention is not limited thereto. In other embodiments, the driving circuit 180, the first touch circuit 530 and the second touch circuit 540 may be the same film layer, but the driving circuit 180 and the second display electrode 162 need to be different film layers.

6A is a schematic bottom view of a touch display panel according to a sixth embodiment of the present invention. FIG. 6B is a schematic cross-sectional view taken along the line C-C 'in FIG. 6A. For simplicity, the light-emitting diode crystal grains 163 are omitted in FIG. 6B, and the line C-C' is exaggeratedly reduced. The distance between the first touch line 630 and the second touch line 640 and the distance between the adjacent second display electrodes 162. Please refer to FIG. 1A to FIG. 1E and FIG. 6A to FIG. 6B at the same time. The touch display panel 600 of this embodiment and the first embodiment The touch display panel 100 of the embodiment is similar. The first touch line 630 and the second touch line 640 have the same extending direction, and the touch element 620 further includes a bridge line 671, and two adjacent first lines The touch lines 630a and 630b can be electrically connected to each other through a bridge line 671.

In this embodiment, the first touch circuit 630 and the second touch circuit 640 may be the same film layer. The first insulating layer 121 is located between the bridge circuit 671 and the first touch circuit 630 and the second touch circuit 640. And if there is a second touch line 640 between two adjacent first touch lines 630a, 630b, the first two touch lines 630a, 630b adjacent to each other may pass through the first insulation layer. The conductive through hole 622 of 121 is electrically connected to the bridge line 671, and can be electrically connected to each other.

In this embodiment, the bridge circuit 671 is located between the substrate 110 and the first touch circuit 630 and the second touch circuit 640, but the present invention is not limited thereto.

In this embodiment, the extension direction of the first touch line 630 and the second touch line 640 is the same as the extension direction of the second display electrode 162, and the extension direction of the bridge line 671 is the same as the extension direction of the first display electrode 161. However, the present invention is not limited to this.

FIG. 7 is a schematic partial cross-sectional view of a touch display panel according to a seventh embodiment of the present invention. Specifically, the wiring design of the touch display panel 700 of FIG. 7 is similar to the wiring design of the touch display panel 600 of FIG. 6A or 6B, and FIG. 7 may be a section similar to the section line CC ′ in FIG. 6A schematic diagram. In addition, for simplicity, the light emitting diode die 163 (shown in FIG. 6A) may be omitted in FIG. 7 and the distance between the first touch line 730 and the second touch line 740 may be exaggerated. Distance by And the distance between adjacent second display electrodes 162.

Please refer to FIG. 6A to FIG. 6B and FIG. 7 at the same time. The touch display panel 700 of this embodiment is similar to the touch display panel 600 of the sixth embodiment. The first touch line 730 and the second touch line 740 are located in a bridge. Between the circuit 771 and the substrate 110.

FIG. 8 is a schematic partial cross-sectional view of a touch display panel according to an eighth embodiment of the present invention. Please refer to FIG. 6A to FIG. 6B and FIG. 8 at the same time. The touch display panel 800 of this embodiment is similar to the touch display panel 600 of the sixth embodiment. The two adjacent first touch lines 830 can be obtained by The connection lines 872 are electrically connected to each other.

For example, in this embodiment, if there is a second touch circuit 840 between two adjacent first touch circuits 830b and 830c, one of the two adjacent first touch circuits 830b and 830c described above The bridges may be electrically connected to each other through a bridge line 871. In addition, if there is no second touch line 840 between two adjacent first touch lines 830a and 830b, the connection line 872 may be connected between the two adjacent first touch lines 830a and 830b. And electrically connected.

In this embodiment, the extension direction of the first touch line 830 and the second touch line 840 is the same as the extension direction 161a of the first display electrode 161, and the extension direction of the bridge line 871 and the connection line 872 is the same as that of the second display. The extending direction 162a of the electrode 162 is not limited thereto.

FIG. 9 is a schematic partial cross-sectional view of a touch display panel according to a ninth embodiment of the present invention. Please refer to FIGS. 1A to 1B and FIG. 9 at the same time. The touch display panel 900 of this embodiment is similar to the touch display panel 100 of the first embodiment. A touch line 930, the first display electrode 161 and the driving circuit 180 may be the same film layer, and the second touch line 940 and the second display electrode 162 may be the same film layer. In a direction perpendicular to the substrate 110 (shown in FIG. 1E) (such as the paper surface of FIG. 9), the first touch circuit 930, the first display electrode 161, and the driving circuit 180 do not overlap each other, and the second touch circuit 940 does not overlap the second display electrode 162. In addition, the first insulating layer 121 (shown in FIG. 1E) and the second insulating layer 164 (shown in FIG. 1E) may be the same film layer.

In this embodiment, the first touch circuit 930 is a sensing electrode and the second touch circuit 940 is a driving electrode, but the present invention is not limited thereto. In other embodiments, the second touch circuit 940 may be a sensing electrode, and the first touch circuit 930 may be a driving electrode.

FIG. 10 is a schematic partial cross-sectional view of a touch display panel according to a tenth embodiment of the present invention. Please refer to FIG. 9 and FIG. 10 at the same time. The touch display panel 1000 of this embodiment is similar to the touch display panel 900 of the ninth embodiment. The first touch circuit 1030 may include a first sub-touch circuit 1031 and a first Auxiliary electrode 1035. The extension direction of the first sub touch line 1031 is the same as that of the first display electrode 161, and the extension direction of the first auxiliary electrode 1035 is the same as the extension direction of the second touch line 940. The first auxiliary electrode 1035 extends from the first sub-touch circuit 1031, and the first auxiliary electrode 1035 overlaps the second touch circuit 940. In this way, the capacitance sensing area between the first touch circuit 1030 and the second touch circuit 940 can be increased to improve the touch sensing capability of the touch display panel 1000.

In this embodiment, the vertical direction of the substrate 110 (as shown in FIG. 1E) In the direction (as shown on the paper surface of FIG. 10), the first auxiliary electrode 1035 does not overlap with the first display electrode 161, and the first auxiliary electrode 1035 does not overlap with the driving circuit 180, so as to reduce the interference between the display signal and the sensing signal. may.

11 is a schematic partial cross-sectional view of a touch display panel according to an eleventh embodiment of the present invention. Please refer to FIG. 9 and FIG. 11 at the same time. The touch display panel 1100 in this embodiment is similar to the touch display panel 900 in the ninth embodiment. The first touch line 1130, the second touch line 1140, and the second display electrode 162 may be the same film layer and have the same extending direction. In addition, in a direction perpendicular to the substrate 110 (shown in FIG. 1E) (such as the paper surface of FIG. 11), the first touch lines 1130, the second touch lines 1140, and the second display electrode 162 do not overlap.

In other embodiments, the first touch circuit 1130, the second touch circuit 1140, and the first display electrode 161 may be the same film layer and have the same extending direction. In addition, in a direction perpendicular to the substrate 110, the first touch lines 1130, the second touch lines 1140, and the first display electrode 161 do not overlap each other.

In this embodiment, the first touch circuit 1130 is a sensing electrode and the second touch circuit 1140 is a driving electrode, but the present invention is not limited thereto.

FIG. 12 is a schematic partial cross-sectional view of a touch display panel according to a twelfth embodiment of the present invention. Please refer to FIG. 11 and FIG. 12 at the same time. The touch display panel 1200 of this embodiment is similar to the touch display panel 1100 of the eleventh embodiment. It has at least one first display electrode between adjacent second display electrodes 162. The touch circuit 1230 and at least one second touch circuit 1240. In addition, the second touch lines 1240 located on opposite sides of the second display electrode 162 or the first touch line 1230 can be bridged by a bridge line. 1271 and electrically connected, the first touch line 1230, the second touch line 1240 and the second display electrode 162 may be the same film layer and have the same extension direction, the driving circuit 180, the bridge line 1271 and the first display electrode 161 may be the same film layer and have the same extending direction.

In other embodiments, the first touch lines 1230 located on opposite sides of the second display electrode 162 may also be electrically connected through another bridge line (not shown).

13 is a schematic partial cross-sectional view of a touch display panel according to a thirteenth embodiment of the present invention. Please refer to FIG. 12 and FIG. 13 at the same time. The touch display panel 1300 of this embodiment is similar to the touch display panel 1200 of the twelfth embodiment. It has at least one first display electrode 161 between partially adjacent first display electrodes 161. A touch circuit 1330 and at least one second touch circuit 1340. In addition, the second touch lines 1340 located on opposite sides of the first display electrode 161 may be electrically connected through the bridge line 1371, and the first touch line 1330, the second touch line 1340, and the first display electrode 161 may be The same film layer has the same extension direction, and the bridge line 1371 and the second display electrode 162 can be the same film layer and have the same extension direction.

In other embodiments, the second touch lines 1340 located on opposite sides of the first display electrode 161 may also be electrically connected through another bridge line (not shown).

14 is a schematic partial cross-sectional view of a touch display panel according to a fourteenth embodiment of the present invention. Please refer to FIG. 13 and FIG. 14 at the same time. The touch display panel 1400 of this embodiment is similar to the touch display panel 1300 of the thirteenth embodiment. The touch circuit 1430 may include a first sub touch circuit 1431 and a first auxiliary electrode 1435, and the second touch circuit 1440 may include a third sub touch circuit 1441 and a second auxiliary electrode 1445. The extending directions of the first sub-touch line 1431 and the third sub-touch line 1441 are the same as those of the first display electrode 161, and the extending directions of the first auxiliary electrode 1435 and the second auxiliary electrode 1445 are the same as those of the second display electrode 162 . The first auxiliary electrode 1435 extends from the first sub-touch line 1431, the second auxiliary electrode 1445 extends from the third sub-touch line 1441, and the first auxiliary electrode 1435 and the extension of the second auxiliary electrode 1445 and the second display electrode 162 The direction is the same. In this way, the capacitance sensing area between the first touch circuit 1430 and the second touch circuit 1440 can be increased to improve the touch sensing capability of the touch display panel 1400.

In this embodiment, the first auxiliary electrode 1435 does not overlap the first display electrode 161 and the driving circuit 180 in a direction perpendicular to the substrate 110 (as shown in FIG. 1E) (as shown on the paper surface of FIG. 14). The auxiliary electrode 1445 does not overlap the first display electrode 161 and the driving circuit 180 to reduce the possibility of interference between the display signal and the sensing signal.

In this embodiment, the first auxiliary electrode 1435 and the second auxiliary electrode 1445 are the same as the extending direction 162a of the second display electrode 162 to improve the touch sensing capability of the touch display panel 1400.

15 is a schematic partial cross-sectional view of a touch display panel according to a fifteenth embodiment of the present invention. 5 and FIG. 15 at the same time, the touch display panel 1500 of this embodiment is similar to the touch display panel 500 of the fifth embodiment. In this embodiment, the first touch circuit 1530 and the second touch circuit 1540 And driving circuit 180 can It is the same film layer. The extension direction of the first touch line 1530 and the extension direction of the second touch line 1540 are the same as the extension direction 180c of the driving circuit 180. The first touch line 1530 is configured corresponding to a part of the driving circuit 180a, and the second touch line 1540 corresponds to the rest of the drive circuit 180b configuration.

In this embodiment, the width of the first touch line 1530 and / or the width of the second touch line 1540 is smaller than the width of the driving circuit 180, but the present invention is not limited thereto. In this embodiment, the width of the first touch line 1530 and / or the width of the second touch line 1540 may be smaller than the width of the driving circuit 180.

In this embodiment, at least one first touch line 1530 and / or at least one second touch line are provided between two adjacent pixel units PU1 and PU2 in an extending direction perpendicular to the driving circuit 180. 1540, but the invention is not limited to this.

FIG. 16 is a schematic partial cross-sectional view of a touch display panel according to a sixteenth embodiment of the present invention. 15 and FIG. 16 at the same time, the touch display panel 1600 of this embodiment is similar to the touch display panel 1500 of the fifteenth embodiment. In the extending direction of the driving circuit 180, the first touch circuit 1630 and the second touch circuit 1630 The touch lines 1640 are respectively located on opposite sides of a pixel unit PU.

FIG. 17 is a schematic partial cross-sectional view of a touch display panel according to a seventeenth embodiment of the present invention. Please refer to FIG. 11 and FIG. 17 at the same time. The touch display panel 1700 of this embodiment is similar to the touch display panel 1100 of the eleventh embodiment. The second touch line 1740 and the driving circuit 180 may be the same film layer. The extension direction of the second touch line 1740 is the same as the extension direction 180c of the driving circuit 180, and the second touch line 1740 is configured corresponding to the driving circuit 180.

In this embodiment, the width of the second touch line 1740 is smaller than the width of the driving circuit 180, but the present invention is not limited thereto. In this embodiment, the width of the second touch line 1740 may be smaller than the width of the driving circuit 180.

18 is a schematic partial cross-sectional view of a touch display panel according to an eighteenth embodiment of the present invention. Please refer to FIG. 11 and FIG. 18 at the same time. The touch display panel 1800 in this embodiment is similar to the touch display panel 1100 in the eleventh embodiment. The first touch circuit 1830 includes a first sub touch circuit 1831 and a second touch circuit. The sub-touch circuit 1832, the first sub-touch circuit 1831 and the second sub-touch circuit 1832 are different film layers and are electrically connected through conductive vias 1822a. The second sub-touch circuit 1832 and the driving circuit 180 have the same film layer. The extending direction of the second sub-touch line 1832 is the same as the extending direction 180c of the driving circuit 180, and the second sub-touch line 1832 is configured corresponding to the driving circuit 180. The second touch circuit 1840 includes a third sub-touch circuit 1841 and a fourth sub-touch circuit 1842. The third sub-touch circuit 1841 and the fourth sub-touch circuit 1842 are different film layers and are formed by conductive vias 1822b. Electrical connection. The fourth sub-touch circuit 1842 is the same film layer as the driving circuit 180. The extending direction of the fourth sub-touch line 1842 is the same as the extending direction 180c of the driving circuit 180, and the fourth sub-touch line 1842 corresponds to the driving circuit 180 configuration.

19 is a schematic partial cross-sectional view of a touch display panel according to a nineteenth embodiment of the present invention. Referring to FIGS. 18 and 19 at the same time, the touch display panel 1900 of this embodiment is similar to the touch display panel 1900 of the eighteenth embodiment. In this embodiment, part of the second touch circuit 1940 only has a third Sub-touch line 1941, and the configuration of the third sub-touch line 1941 is similar to other second touch lines The third sub-touch circuit 1841 of 1840.

In some embodiments, part of the first touch circuit (not shown) may also have only the first sub touch circuit (not shown).

20 is a schematic partial cross-sectional view of a touch display panel according to a twentieth embodiment of the present invention. Please refer to FIG. 12 and FIG. 20 at the same time. The touch display panel 2000 of this embodiment is similar to the touch display panel 1200 of the twelfth embodiment. The second touch circuit 2040 includes a third sub-touch circuit 2041 and a fourth The sub-touch circuit 2042, the third sub-touch circuit 2041 and the fourth sub-touch circuit 2042 are different layers and are electrically connected. The fourth sub-touch circuit 2042 is the same film layer as the driving circuit 180. The extension direction of the third sub-touch circuit 2041 is the same as the extension direction 180c of the driving circuit 180, and the third sub-touch circuit 2041 corresponds to the configuration of the driving circuit 180.

A touch display panel according to an embodiment of the present invention can configure a touch circuit above, below and / or laterally of a light emitting diode die, which can effectively integrate a touch element and a display element, and can improve space utilization. . In addition, the touch display panel according to an embodiment of the present invention can reduce the interference between the display signal and the sensing signal, thereby improving the display and touch quality of the touch display panel.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the appended patent application scope and its equivalent scope.

Claims (20)

A touch display panel includes: a substrate; a touch element disposed on the substrate; and the touch element includes: a first touch circuit having a plurality of first loop circuits; and a second touch circuit, Having a plurality of second loop lines and being electrically insulated from the first touch line, the first touch line is located between the second touch line and the substrate, wherein the plurality of second A loop line overlaps the plurality of first loop lines, and a width of the plurality of second loop lines is greater than or equal to a width of the plurality of first loop lines; and an insulating layer is located in the first Between a touch circuit and the second touch circuit; a buffer layer covering the touch element; and a display element disposed on the buffer layer, and the display element includes: a first display electrode A second display electrode; and a plurality of light-emitting diode crystal grains electrically connected to the first display electrode and the second display electrode, and the plurality of light-emitting diode crystal grains are located in the plurality of light-emitting diode crystal grains; Within the area surrounded by the first loop line. The touch display panel according to item 1 of the scope of patent application, wherein the plurality of first loop lines are sensing electrodes, and the plurality of second loop lines are driving electrodes. The touch display panel according to item 2 of the scope of patent application, wherein: the plurality of first loop lines and the plurality of second loop lines overlap the first display electrode; and / or the The plurality of first loop lines and the plurality of second loop lines overlap the second display electrode. The touch display panel according to item 1 of the scope of patent application, wherein the plurality of first loop lines and the plurality of light-emitting diode crystal grains do not overlap. A touch display panel includes: a substrate; a touch element disposed on the substrate; and the touch element includes: a first touch circuit having a plurality of loop circuits; and a second touch circuit having a plurality of circuits. Sheet circuits are electrically insulated from the first touch circuit, and the first touch circuit is located between the second touch circuit and the substrate, wherein the plurality of chip circuits are separated from the first touch circuit A plurality of loop lines are overlapped, and an area of the plurality of sheet lines is greater than or equal to an area surrounded by the plurality of loop lines; and an insulating layer is located between the first touch line and the second touch line Between control lines; a buffer layer covering the touch element; and a display element disposed on the buffer layer, and the display element includes: a first display electrode; a second display electrode; and a plurality of light emitting diodes The polar crystal grains are electrically connected to the first display electrode and the second display electrode, and the plurality of light emitting diode crystals are located in a region surrounded by the plurality of ring-shaped lines. The touch display panel according to item 5 of the scope of patent application, wherein the plurality of loop lines are sensing electrodes, and the plurality of chip lines are driving electrodes. The touch display panel according to item 6 of the scope of patent application, wherein: the plurality of loop lines, the plurality of sheet lines overlap the first display electrode; and / or the plurality of loop lines The wiring and the plurality of sheet-like wirings overlap the second display electrode. The touch display panel according to item 5 of the scope of patent application, wherein the plurality of loop lines and the plurality of light-emitting diode crystal grains do not overlap. A touch display panel includes: a substrate; a touch element disposed on the substrate; and the touch element includes: a plurality of first touch circuits; a plurality of second touch circuits; and the plurality of A first touch circuit is electrically insulated; and an insulating layer is located between the plurality of first touch circuits and the plurality of second touch circuits; a display element is disposed on the substrate, and the display The element includes: a plurality of first display electrodes; a plurality of second display electrodes, which are disposed to intersect with the plurality of first display electrodes, wherein: the plurality of first touch circuits and the plurality of second touch electrodes The lines overlap the plurality of first display electrodes or the plurality of second display electrodes; and the areas of the plurality of first touch circuits and the areas of the plurality of second touch circuits are less than or equal to the area An area of a plurality of first display electrodes or an area of the plurality of second display electrodes; a plurality of light emitting diode crystal grains electrically connected to the first display electrode and the second display electrode; and a plurality of A driving circuit electrically connected to the corresponding plurality of second display electrodes And the plurality of driving circuit and the plurality of first display electrodes or the plurality of second display electrodes of the same layer; and a buffer layer, positioned between the elements of the display and the touch element. The touch display panel according to item 9 of the scope of patent application, wherein the plurality of first touch circuits and the plurality of second touch circuits are disposed in an overlapping manner. The touch display panel according to item 9 of the scope of patent application, wherein the plurality of first touch circuits and the plurality of second touch circuits are in the same film layer, and the plurality of adjacent ones are partially There is at least one of the plurality of second touch lines between the first touch lines; or at least one of the plurality of first touch lines between the partially adjacent second touch lines. The touch display panel according to item 11 of the scope of patent application, wherein the touch element further includes: a bridge circuit overlapping with the plurality of first display electrodes or the plurality of second display electrodes, wherein The bridge line and the plurality of first touch lines are different film layers, and the plurality of first touch lines adjacent to each other are electrically connected to each other through the bridge line. The touch display panel according to item 12 of the scope of patent application, wherein: the bridge circuit is located between the substrate and the plurality of first touch circuits; or the plurality of first touch circuits is located Between the substrate and the bridge line. The touch display panel according to item 11 of the scope of patent application, wherein the touch element further includes: a connection line overlapping with the plurality of first display electrodes or the plurality of second display electrodes, wherein The connection lines and the plurality of first touch lines are in the same film layer, and the plurality of first touch lines adjacent to each other are electrically connected to each other through the connection lines. The touch display panel according to item 9 of the scope of patent application, wherein: the touch element is disposed between the substrate and the buffer layer; or the display element is disposed between the substrate and the buffer layer between. A touch display panel includes: a substrate; a touch element disposed on the substrate; and the touch element includes: a plurality of first touch circuits; a plurality of second touch circuits; and the plurality of The first touch circuit is electrically insulated; and an insulating layer is located between the plurality of first touch circuits and the plurality of second touch circuits; and a display element is disposed on the substrate, and the The display element includes: a plurality of first display electrodes; a plurality of second display electrodes, which are disposed across the plurality of first display electrodes, wherein: the plurality of first touch lines and the plurality of first displays The electrodes or the plurality of second display electrodes are the same film layer; and the plurality of second touch lines and the plurality of first display electrodes or the plurality of second display electrodes are the same film layer; The light emitting diode crystal grains are electrically connected to the first display electrode and the second display electrode; and a plurality of driving circuits are electrically connected to the corresponding plurality of second display electrodes, and the plurality of Driving circuits and the plurality of first display electrodes or the plurality of first display electrodes Display electrodes of the same layer. The touch display panel according to item 16 of the scope of patent application, wherein the plurality of first touch circuits and the plurality of second touch circuits are different film layers and are disposed in a crossover manner. The touch display panel according to item 17 of the scope of patent application, wherein the touch element further includes: a plurality of first auxiliary electrodes connected to the plurality of first touch lines, and the plurality of first The auxiliary electrode overlaps the plurality of second touch circuits. The touch display panel according to item 16 of the application, wherein the plurality of first touch lines and the plurality of second touch lines are in the same film layer and have the same extending direction. The touch display panel according to item 16 of the scope of patent application, wherein the touch element further includes: a bridge circuit, a layer different from the plurality of second touch circuits, and a part of the plurality of adjacent ones. The second touch lines are electrically connected to each other through the bridge line.