CN114237422B - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
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- CN114237422B CN114237422B CN202111530791.5A CN202111530791A CN114237422B CN 114237422 B CN114237422 B CN 114237422B CN 202111530791 A CN202111530791 A CN 202111530791A CN 114237422 B CN114237422 B CN 114237422B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The application provides a touch display panel and display device, include: display substrate, touch functional layer and shading layer. The display substrate comprises a display area and a frame area positioned at one side of the display area, wherein the frame area comprises a binding area; the touch control functional layer is arranged on the display substrate and comprises a touch control electrode layer and a touch control signal wiring layer, and the touch control electrode layer comprises a plurality of touch control sensing blocks positioned in a display area; the touch signal wiring layer comprises a plurality of signal wirings, and the signal wirings are connected with the touch sensing blocks in a one-to-one correspondence manner and extend to the binding area; the light shielding layer is positioned on one side of the touch functional layer far away from the display substrate, and comprises a plurality of light shielding patterns, and the light shielding patterns cover at least part of the surfaces of the signal wires.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch display panel and a display device.
Background
The display screen has been widely used in various fields such as portable electronic devices (for example, mobile communication terminals, tablet computers, electronic books, and navigation devices) and large-screen electronic devices, wherein an Organic Light-Emitting Diode (OLED) has been increasingly used in the display screen due to its excellent characteristics of low power consumption, high color saturation, wide viewing angle, thin thickness, flexibility, etc.
At present, an OLED touch display screen mainly comprises a display substrate and a touch functional layer disposed on the surface of the display panel, but for a full-screen, the reflection angles of metal signal wires in the touch functional layer to external environment light in different areas of the display panel are different, so that uneven display brightness (Mura) exists in partial areas of the display screen, and the display effect is affected.
Therefore, the prior art has defects and needs to be solved urgently.
Disclosure of Invention
The application provides a touch display panel, which can solve the problem of uneven brightness of signal wiring in different areas of a display area due to wiring trend.
In order to solve the problems, the technical scheme provided by the application is as follows:
a touch display panel, comprising:
the display substrate comprises a display area and a frame area positioned at one side of the display area, wherein the frame area comprises a binding area; and
the touch control functional layer is arranged on the display substrate and comprises a touch control electrode layer and a touch control signal wiring layer, and the touch control electrode layer comprises a plurality of touch control sensing blocks positioned in a display area; the touch signal wiring layer comprises a plurality of signal wirings, and the signal wirings are connected with the touch sensing blocks in a one-to-one correspondence manner and extend to the binding area; and
the light shielding layer is positioned on one side of the touch functional layer far away from the display substrate, and comprises a plurality of light shielding patterns, and the light shielding patterns cover the surface of the signal wiring.
In one embodiment of the present invention, the touch functional layer includes a fan-out area, the fan-out area is located at one side of the display area near the frame area, at least a portion of the fan-out area is located in the display area, the plurality of signal traces extend to the binding area through the fan-out area, and the light shielding layer is formed on a surface of a portion of the signal traces in the fan-out area.
In one embodiment of the present invention, the touch signal trace layer and the touch electrode layer are stacked and connected through the conductive via hole, and the light shielding layer covers the entire surface of the touch signal trace layer.
In one embodiment of the present invention, the touch signal routing layer and the touch electrode layer are arranged on the same layer, and the light shielding layer covers all surfaces of the touch signal routing layer and the touch electrode layer.
In one embodiment of the present invention, the display substrate includes a substrate and a light emitting layer that are stacked, the light emitting layer includes a plurality of pixel units that are disposed at intervals, the plurality of pixel units are located in the display area, and the pixel units include sub-pixels; the signal wiring and the sub-pixels are arranged in a staggered mode in the display area, and the shading layer exposes the sub-pixels.
In one embodiment of the present invention, adjacent signal wires are arranged in parallel to form a plurality of light emitting holes, and each light emitting hole corresponds to at least one sub-pixel.
In one embodiment of the present invention, the light exit hole is a center symmetrical pattern.
In one embodiment of the present invention, the signal trace includes a plurality of first connection sections and second connection sections that are sequentially connected, the first connection sections are straight line sections, the second connection sections are curve sections, each second connection section is located between two adjacent first connection sections, the two adjacent first connection sections of the two signal traces are oppositely disposed, the two second connection sections of the two adjacent signal traces are oppositely disposed, and the light shielding layer is formed on the surface of the second connection section of the fan-out area.
In one embodiment of the present invention, a pair of posts extends from a surface of each of the second connection segments facing away from the other signal trace, and the pair of posts can be rotated at an angle to coincide with the first connection segment.
The invention also relates to a display device.
A display device comprising a display panel according to any one of the preceding claims.
The beneficial effects of this application are: the touch display panel provided by the application is provided with the shading layer on the surface of the signal wiring so as to eliminate the uneven brightness phenomenon caused by the signal wiring in different areas of the display area, and the display effect is improved.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a touch display panel according to a first embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of the touch display panel of FIG. 1;
FIG. 3 is an enlarged view of an area A of the touch display panel of FIG. 1;
FIG. 4 is an enlarged view of a region B of the touch display panel of FIG. 1;
fig. 5 is a schematic structural diagram of a signal trace included in a touch display panel according to a second embodiment of the present disclosure;
fig. 6 is a cross-sectional view of a touch display according to a third embodiment of the present disclosure;
fig. 7 is a schematic plan view of a touch display panel according to a fourth embodiment of the present application.
Description of the reference numerals
100. 200, 300-touch display panels;
222-first portion signal trace; 224-second portion signal trace;
1-a display substrate; 2. 210-a touch control functional layer; 3. 31, 41-a light-shielding layer; 4-a flat layer;
101-a display area; 103-border region; 105-binding area; 234-pooling section;
10-a substrate; 12-a light emitting layer; 120. 130-pixel units; 30. 301, 410-shading pattern
20-a touch electrode layer; 22-a touch signal wiring layer; 201, a touch sensing block;
221. 250, 330-signal traces; 225-redundant metal pads;
110-a fan-out area; 231-wire pairs; 233-a first light exit aperture;
235-a second light exit aperture; 241. 251, 331-first connection section;
242. 252, 340-a second connection section; 232-longitudinal section;
25-conductive vias; 5-an insulating layer; 342-a pair of posts; 341-lugs.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. The touch display panel of the present application is described in detail below with reference to specific embodiments.
The present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. The touch display panel 100 of the present application is described in detail below with reference to specific embodiments.
Referring to fig. 1-2, a touch display panel 100 according to the present invention includes: a display substrate 1, a touch functional layer 2 and a shading layer 3.
The display substrate 1 comprises a display area 101 and a frame area 103 positioned at one side of the display area 101, wherein the frame area 103 comprises a binding area 105.
The touch functional layer 2 is disposed on the display substrate 1, and the touch functional layer 2 includes a touch electrode layer 20 and a touch signal trace layer 22.
The touch electrode layer 20 includes a plurality of touch sensing blocks 201 located in the display area 101; the touch signal trace layer 22 includes a plurality of signal traces 221, and the plurality of signal traces 221 are connected to the plurality of touch sensing blocks 201 in a one-to-one correspondence and extend to the bonded area 105. The light shielding layer 3 is located at a side of the touch functional layer 2 away from the display substrate 1, the light shielding layer 3 includes a plurality of light shielding patterns 30, and the light shielding patterns 30 cover the surface of the signal traces 221.
The beneficial effects of this application are: the light shielding layer 3 is disposed on the surface of the signal trace 221 to eliminate the uneven brightness caused by different reflection angles of the signal trace 221 in different areas of the display area 101, thereby improving the display effect.
The following description is made with reference to the specific drawings.
Referring to fig. 1-4, fig. 1-4 provide a touch display panel 100, wherein the touch display panel 100 includes a display substrate 1, a touch functional layer 2, a light shielding layer 3 and a flat layer 4.
The display substrate 1 is provided with a display area 101 and a frame area 103 positioned at one side of the display area 101, wherein the frame area 103 comprises a binding area 105.
The display substrate 1 includes a substrate 10, a light-emitting layer 12, and a packaging layer 14, which are stacked. The light emitting layer 12 includes a plurality of pixel units 120 disposed at intervals, the pixel units 120 are located in the display area 101, and each pixel unit 120 includes at least one sub-pixel.
The touch functional layer 2 includes a touch electrode layer 20 and a touch signal trace layer 22 disposed on the display substrate 1. The touch signal trace layer 22 and the touch electrode layer 20 are arranged in the same layer.
The touch electrode layer 20 includes a plurality of touch sensing blocks 201, and at least a portion of the touch sensing blocks 201 are located in the display area 101. It should be noted that, the touch sensing block 201 may be partially located in the display area 101 or may be entirely located in the display area 101. Preferably, the touch sensing block 201 is located in the display area 101. Thus, the touch operation can be performed in the display area 101 of the display panel, and the touch sensing range is increased.
In this embodiment, the touch sensing blocks 201 form a matrix arrangement of M rows and N columns, wherein the sizes of the touch sensing blocks 201 in the 1 st row to the M-1 st row are the same, the sizes of the touch sensing blocks 201 in the M-th row are the same, and the sizes of the touch sensing blocks 201 in the M-th row are smaller than the sizes of the touch sensing blocks 201 in the remaining rows. The touch sensing block 201 of the lowermost row of the display area 101 is reduced in size in order to leave the space required for the fan-out area 110 in the display area 101.
The touch signal routing layer 22 includes a plurality of signal routing lines 221, the plurality of signal routing lines 221 are in one-to-one correspondence with the plurality of touch sensing blocks 201 and are electrically connected with the plurality of touch sensing blocks 201, and the plurality of signal routing lines 221 extend to the bonding area 105 and are connected with the driving integrated circuits in the bonding area 105. The signal wiring 221 connects the touch sensing block 201 and the driving integrated circuit, so as to realize the transmission of touch signals. It should be noted that the driving integrated circuit may be a touch driving circuit, or may be a combination of a touch driving circuit and a display driving circuit.
The touch functional layer 2 includes a fan-out area 110, at least a portion of the fan-out area 110 is located in the display area 101, so that the signal traces 221 are collected in the display area 101, and thus the space required by the signal traces 221 in the frame area 103 is reduced. Therefore, the height of the frame of the touch display panel 100 in the second direction can be reduced, and the narrow frame design is realized. Preferably, as shown in fig. 1, the fan-out area 110 is located entirely within the display area 101, i.e., the display area 101 covers the fan-out area 110.
The signal trace 221 includes a first portion of a signal trace 222 and a second portion of a signal trace 224. In this embodiment, the first portion of the signal trace 222 includes a longitudinal segment 232 extending along the first direction and a converging segment 234 extending along the second direction, wherein the end of the converging segment 234 extends to the binding area 105, the longitudinal segment 232 intersects the converging segment 234, and both the longitudinal segment 232 and the converging segment 234 are located in the display area 101. In this embodiment, the collecting section 234 is located at a side of the touch sensing block 201 of the column where the touch sensing block 201 is located, which is close to the frame area 103. A second portion of the signal traces 224 in the signal traces 221 extend straight to the fan-out region 110 and then to the border region 103. In this embodiment, the first direction is perpendicular to the second direction.
In order to eliminate the viewing angle Mura phenomenon caused by the reflection angle of the signal traces in the fan-out area 110 and the signal traces 221 in other areas, a redundant metal pad 225 is disposed under the touch sensing block 201 of the row that is electrically connected to the redundant metal pad. The redundant metal pad 225 is only used to eliminate the difference caused by the reflection angle of the signal trace, and does not participate in conduction.
Two adjacent signal wires 221 are arranged in parallel to form a wire pair 231, a plurality of first light emitting holes 233 are formed between each wire pair 231, a plurality of second light emitting holes 235 are formed between adjacent wire pairs, each first light emitting hole 233 corresponds to at least one pixel unit 120, and each second light emitting hole 235 corresponds to at least one pixel unit 130. The influence on the display effect due to the shielding of the sub-pixels by the signal wiring 221 is avoided. Compared with the prior art, the pixel unit is bypassed by one signal wire, in this embodiment, two signal wires 221 are oppositely disposed and avoid the pixel unit 120, so that the space of the display area 101 occupied by each signal wire 221 can be reduced, and the space occupation ratio of the touch sensing block 201 is improved.
It should be noted that, the first light exit hole 233 and the second light exit hole 235 may correspond to one pixel unit 120, or may correspond to a plurality of pixel units 120, that is, one light exit hole surrounds a plurality of pixel units 120. Specifically, the determination may be performed according to the actual situation, and the shapes of the first light exit holes 233 and the second light exit holes 235 may be determined according to the shape of the pixel unit 120 in the present embodiment, and in the present embodiment, the first light exit holes 233 and the second light exit holes 235 are all in a central symmetrical pattern.
Specifically, the signal trace 221 includes a plurality of first connection sections 241 and second connection sections 242 that are sequentially connected, the first connection sections 241 are straight line sections, the second connection sections 242 are curved line sections, each second connection section 242 is located between two adjacent first connection sections 241, two adjacent first connection sections 241 of two signal traces 221 are oppositely disposed, and two second connection sections 242 of two adjacent signal traces 221 are oppositely disposed. In this embodiment, the second connection section 242 has a circular arc or a semicircular shape.
The light shielding layer 3 includes a plurality of light shielding patterns 30, and the light shielding patterns 30 cover the surface of the signal traces 221 in the display area. The light shielding layer 3 exposes the pixel unit 120. Because the collecting section 234 extends along the second direction, the reflection angle of the collecting section 234 to the external environment light is different from the reflection angle of the longitudinal section 232 to the external environment light, so that the shading layer 3 is arranged on the surface of the whole signal wire 221, and the uneven brightness phenomenon caused by the change of the trend of the signal wire 221 is directly eliminated, thereby improving the display effect.
In this embodiment, the light shielding layer 3 also covers the surface of the touch electrode layer 20, so that the uneven brightness caused by the reflection of the touch sensing block 201 can be eliminated.
In the present embodiment, the flat layer 4 is provided on the surfaces of the light shielding layer 3 and the flat layer 4. The flat layer 4 may be a film layer made of an insulating material, for example, an insulating film layer made of an Organic Coating (OC).
Referring to fig. 5, the touch display panel shown in fig. 5 is substantially the same as the touch display panel 100 of the first embodiment, and is different from the first embodiment in that, in this embodiment, the signal trace 250 includes a second connection section 252 having a slightly different shape from the first embodiment, in this embodiment, the second connection section 252 is formed by sequentially connecting three branches, specifically, the second connection section 252 includes a first branch 255 and second branch 253 located at two ends of the first branch 255, the length of the first branch 255 is smaller than the length of the second branch 253, and the two second connection sections 252 are formed in a rhombic shape. That is, the first connection section 251 is used for connection, and the second connection section 252 is used for bypassing the pixel unit 130. So that the pixel units 120 may also have a diamond shape. It is understood that the light shielding layer is also formed on the entire surface of the signal trace 250.
Referring to fig. 6, the touch display panel 200 shown in fig. 6 is substantially the same as the touch display panel 100 of the first embodiment, and is different in that, in the present embodiment, the touch functional layer 210 includes a touch signal trace layer 22 and a touch electrode layer 20 that are stacked, an insulating layer 5 is disposed between the touch signal trace layer 22 and the touch electrode layer 20 and is conducted through a conductive via 25, so that a plurality of signal traces 221 included in the touch signal trace layer 22 are connected with a plurality of touch sensing blocks 201 included in the touch electrode layer 20. And the distance between the touch signal trace layer 22 and the substrate 10 is greater than the distance between the touch electrode layer 20 and the substrate 10. The light shielding layer 31 is located on the surface area side of the touch signal trace layer 22, and the projection of the touch sensing block 201 included in the touch electrode layer 20 is located in the projection range of the light shielding pattern 301 included in the corresponding light shielding layer 31 on the substrate 10, so that the light shielding layer 31 can eliminate the poor vision phenomenon caused by the reflection generated by the touch sensing block 201.
Moreover, as the touch signal wiring layer 22 and the touch electrode layer 20 are arranged on different layers, the signal wiring 221 is prevented from occupying the space of the touch sensing block 201 in the display area 101, thereby ensuring the touch performance. Note that, the fan-out area 110 may be partially located in the display area 101, or may be entirely located in the display area 101.
Referring to fig. 7, the touch display panel 300 shown in fig. 7 is substantially the same as the touch display panel 100 of the first embodiment, and is different in that the shape of the signal trace 330 is slightly different from the shape of the signal trace 221 in the present embodiment.
In this embodiment, a pair of posts 342 further extends from a side of the second connection section 340 facing away from the other second connection section 340 of the signal trace 330, each pair of posts 342 includes two spaced lugs 341, and a gap d between the lugs 341 is the same as a gap between the two first connection sections 331, so that the pair of posts 342 rotate by a certain angle to overlap with the first connection sections 331, and the pair of posts 342 of adjacent signal traces 330 are spaced apart. The pairs of posts 342 are formed simultaneously with the signal traces 330.
In addition, compared to the light shielding layer of the first embodiment formed on the surface of the entire signal trace, in the present embodiment, the light shielding layer 41 is formed only on the surface of the first connection section 331 included in the collecting section of the fan-out area, that is, the light shielding pattern 410 included in the light shielding layer 41 is formed on the surface of each first connection section 331.
Because a portion of the signal traces 330 converge from the first direction to the fan-out area 110, that is, the transition of the signal traces 330 from the vertical extension to the lateral extension, the reflection angle of the collecting section 234 to the external ambient light is different from the reflection angle of the longitudinal section 232 of the signal trace 221 to the external ambient light, and the first connection section 331 of the collecting section 234 is covered by the light shielding pattern 30, the reflection of the light in the lateral direction by the first connection section 331 of the collecting section 234 is eliminated.
The pair of posts 342 of the adjacent signal traces 330 also extend along the vertical direction, as shown in the dashed box C of fig. 7, so that the arrangement of the plurality of collecting sections 234 of the fan-out area in the longitudinal direction is consistent with the extending direction of the longitudinal sections 232, that is, the shape difference between the adjacent signal traces 330 is reduced by utilizing the pair of posts 342, so as to reduce the reflection difference between the light rays, and thus, the uneven brightness caused by the reflection angle of the signal traces of the fan-out area 110 can be eliminated.
That is, in the present embodiment, the light shielding layer is directly disposed at the place where the reflection difference is generated to eliminate the reflection difference, and the convex column pair 342 is used to perform the reflection correction, so that the uneven brightness phenomenon caused by the different reflection angles of the signal traces can be eliminated.
The embodiment of the application also provides a display device, which comprises a touch display panel, and the specific structure of the touch display panel refers to the embodiment, and because the display device adopts all the technical schemes of all the embodiments, the display device at least has all the beneficial effects brought by the technical schemes of the embodiments. And will not be described in detail herein.
The display device comprises a touch display panel, a control circuit and a shell. The shell is connected with the touch display panel to support and fix the touch display panel, the control circuit is arranged in the shell, and the control circuit is electrically connected with the touch display panel to control the touch display panel to display pictures.
The touch display panel can be fixed on the shell and forms a whole with the shell, and the touch display panel and the shell form a closed space for accommodating the control circuit. The control circuit may be a main board of the display device, and meanwhile, one or more of a battery, an antenna structure, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor and other functional components may be integrated on the control circuit, so that the display device 1 can be adapted to various application fields.
It should be noted that the display device is not limited to the above, and may further include other devices, such as a camera, an antenna structure, a fingerprint unlocking module, etc., to expand the application range thereof, which is not limited herein.
It should be noted that, the application range of the display device in the embodiment of the application is very wide, including flexible OLED display and illumination such as tv set, computer, mobile phone, foldable and curlable OLED, and wearable devices such as smart bracelet, smart watch, virtual Reality (VR), etc., which are all within the application range of the display device in the embodiment of the application.
The beneficial effects of this application are: according to the touch display panel 100 provided by the application, the shading layer 3 is arranged on the surface of the signal wiring 221, so that uneven brightness of the signal wiring 221 in different areas of the display area 101 due to wiring trend is eliminated, and the display effect is improved.
In summary, although the present application has been described with reference to the preferred embodiments, the preferred embodiments are not intended to limit the application, and those skilled in the art can make various modifications and adaptations without departing from the spirit and scope of the application, and the scope of the application is therefore defined by the claims.
Claims (9)
1. A touch display panel, comprising:
the display substrate comprises a display area and a frame area positioned at one side of the display area, wherein the frame area comprises a binding area;
the touch control functional layer is arranged on the display substrate and comprises a touch control electrode layer and a touch control signal wiring layer, and the touch control electrode layer comprises a plurality of touch control sensing blocks positioned in the display area; the touch signal wiring layer comprises a plurality of signal wirings, and the signal wirings are connected with the touch sensing blocks in a one-to-one correspondence manner and extend to the binding area; and
the light shielding layer is positioned on one side of the touch functional layer far away from the display substrate and comprises a plurality of light shielding patterns, and the light shielding patterns cover the surface of the signal wiring;
the signal wiring comprises a plurality of first connecting sections and second connecting sections which are connected in sequence, two adjacent signal wiring sections are oppositely arranged, each second connecting section is located between two adjacent first connecting sections, a convex column pair is arranged on the surface of each second connecting section, deviating from the other signal wiring section, and the convex column pair can rotate for a certain angle to coincide with the first connecting sections.
2. The touch display panel according to claim 1, wherein the touch function layer comprises a fan-out area, the fan-out area is located at one side of the display area near the frame area, at least a part of the fan-out area is located in the display area, the signal trace extends to the binding area through the fan-out area, and the shading pattern covers a part of the surface of the signal trace in the fan-out area.
3. The touch display panel according to claim 1, wherein the touch signal trace layer and the touch electrode layer are stacked and connected through a conductive via hole, and the light shielding layer covers all surfaces of the touch signal trace layer.
4. The touch display panel according to claim 1, wherein the touch signal trace layer and the touch electrode layer are arranged on the same layer, and the light shielding layer covers all surfaces of the touch signal trace layer and the touch electrode layer.
5. The touch display panel according to claim 1, wherein the touch sensing blocks form a matrix arrangement of M rows and N columns, wherein the sizes of the touch sensing blocks of the 1 st row to the M-1 st row are the same, the sizes of the touch sensing blocks of the M-th row are the same, and the sizes of the touch sensing blocks of the M-th row are smaller than the sizes of the touch sensing blocks of the remaining rows.
6. The touch display panel according to claim 2, wherein the display substrate comprises a substrate and a light emitting layer which are stacked, the light emitting layer comprises a plurality of pixel units which are arranged at intervals, the pixel units are positioned in the display area, and the pixel units comprise sub-pixels; the signal wiring and the sub-pixels are arranged in a staggered mode in the display area, and the shading layer exposes the sub-pixels.
7. The touch display panel according to claim 6, wherein two adjacent signal wires are arranged in parallel to form a wire pair, a plurality of first light emitting holes are formed between each wire pair, a plurality of second light emitting holes are formed between adjacent wire pairs, each first light emitting hole corresponds to at least one sub-pixel, and each second light emitting hole corresponds to at least one sub-pixel.
8. The touch display panel according to claim 7, wherein the first connection section is a straight line section, the second connection section is a curved line section, two second connection sections included in each of the pair of wirings protrude in a direction away from each other, and the light shielding layer is formed on a surface of the second connection section of the fan-out area.
9. A display device comprising the touch display panel according to any one of claims 1 to 8.
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| CN202111530791.5A CN114237422B (en) | 2021-12-14 | 2021-12-14 | Touch display panel and display device |
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| CN202111530791.5A CN114237422B (en) | 2021-12-14 | 2021-12-14 | Touch display panel and display device |
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| CN114237422A CN114237422A (en) | 2022-03-25 |
| CN114237422B true CN114237422B (en) | 2023-06-27 |
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| CN114327133B (en) * | 2021-12-21 | 2023-07-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display terminal |
| CN114823825A (en) * | 2022-04-12 | 2022-07-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN114237422A (en) | 2022-03-25 |
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