Patent ID: 12223153

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The technical solutions in the embodiments of the present disclosure are clearly and completely described below in combination with the attached drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within protection scopes of the present disclosure.

The embodiments of the present disclosure provide a new display panel and a mobile terminal to solve problems relating that grid shapes of touch areas, lead areas and shielding areas of metal touch layers of single-layer metal self-capacitive touchscreens in the prior art are different from each other, resulting in uneven brightness of screens.

Please refer toFIG.1.FIG.1is a top view of a display panel provided by an embodiment of the present disclosure. In an embodiment, the display panel provided by the embodiment of the present disclosure includes a substrate and a conductive layer disposed on the substrate. The conductive layer includes a plurality of touch electrodes11, a plurality of leads12, and a plurality of dummy electrode13. Each one of the leads12is disposed between two adjacent ones of the touch electrodes11, and each one of the dummy electrodes13is disposed between one of the touch electrodes11and one of the leads12which are adjacent to each other. One end of each one of the leads12is electrically connected to the corresponding touch electrode11, and the other end is electrically connected to a touch chip. The dummy electrodes13are electrically connected to neither the touch electrodes11nor the leads12. The touch electrodes11, the leads12, and the dummy electrodes13all include a grid structure of a same shape.

The plurality of touch electrodes11are formed as a touch area, and the plurality of touch electrodes11are disposed on the substrate in the same layer and insulated from each other. Preferably, the plurality of touch electrodes11are disposed on the substrate in an array. The plurality of touch electrodes11may have the same shape and size. The plurality of leads12are formed as a lead area, and the leads12are individually connected to the corresponding touch electrodes11in one-to-one correspondence. Specifically, one end of each one of the leads12is connected to the corresponding touch electrode11, and the other end is connected to a touch detection module (not shown inFIG.1), so as to realize touch detection. Specifically, the display panel is provided with a plurality of touch electrodes11in the same layer and insulated from each other. As the screen is not touched by human body parts, capacitance that each touch electrode11bears is a fixed capacitance. As the screen is touched by human body parts, the capacitance that the corresponding touch electrode11bears is a fixed capacitance plus a human body capacitance. The touch detection module determines touch positions by monitoring changes in the capacitance values of all the touch electrodes11during touch period. The dummy electrodes13are filled in an area outside the plurality of touch electrodes11and the plurality of leads12, so as to form a dummy area.

It can be understood that in the present embodiment, the shapes of the grid structures of the touch electrodes11, the leads12, and the dummy electrodes13filled between the touch electrodes11and the leads12are configured to be the same, so that reflective effects of the three are the same. That is, the reflective effects of all parts in the entire display area of the display panel are equivalent, thereby greatly preventing uneven brightness of the screen, and improving display effects of the display panel.

In an embodiment, refer toFIGS.1to5.FIG.2is an enlarged schematic view of an area B inFIG.1.FIG.3is an enlarged schematic view of an area C inFIG.1. BothFIGS.4and5are enlarged schematic views of an area A inFIG.2. The display panel further includes a light-emitting layer disposed between the substrate and the conductive layer, the light-emitting layer includes a plurality of light-emitting pixels, and the grid structure is disposed corresponding to the light-emitting pixels. As shown inFIGS.3to5, the grid structures of the touch electrodes11, the leads12, and the dummy electrodes13all include a plurality of grid bodies21disposed around the corresponding light-emitting pixels. The grid structures of the touch electrodes11and the leads12further includes at least one grid connection line22configured to electrically connect two adjacent ones of the grid bodies21, and a shape of the grid bodies21of the touch electrodes11, a shape of the grid bodies21of the leads12, and a shape of the grid bodies21of the dummy electrodes13are the same.

It can be understood that for network structure of any one of the touch electrodes11, the leads12, and the dummy electrodes13, the grid bodies21are in one-to-one correspondence to the light-emitting pixels. Moreover, a projection of each one of the grid bodies21projected on the light-emitting layer surrounds the corresponding light-emitting pixel, so as to prevent blocking the corresponding light-emitting pixel. Further, for the network structure of any one of the touch electrodes11and the leads12, a grid connection line22is provided between at least two adjacent ones of the grid bodies21, so as to electrically connect the two adjacent grids bodies21, thereby realizing transmission of electric signals.

In one embodiment, as shown inFIGS.3to5, the grid bodies21in the grid structure of the touch electrodes11, the leads12, and the dummy electrodes13are arranged in a first direction01and a second direction02. Each one of the grid bodies21includes two sub-grid bodies211located on both sides of the corresponding light-emitting pixel. In the sub-grid bodies211arranged in the second direction02, the grid connection line22is connected between two adjacent ones of the sub-grid bodies211, and the sub-grid bodies211and the grid connection line22disposed alternately and continuously in the second direction are formed as a strip-shaped structure24.

Specifically, the display panel may be rectangular, wherein the first direction01may be parallel to a first side of the display panel, the second direction02may be parallel to a second side of the display panel, and the first side and the second side are adjacent to each other. Further, the first side may be perpendicular to the second side, as shown inFIGS.3to5. That is, the grid bodies21may be arranged in a matrix. It can be understood that in the second direction02, the two adjacent sub-grid bodies21are electrically connected by the grid connection line22, so that the corresponding strip structure24can transmit electrical signals. According to the above analysis, it can be seen that the two strip-shaped structures24of the light-emitting pixels in the same column are arranged axisymmetrically.

In an embodiment, as shown inFIGS.3to5, in the grid bodies21, a disconnected structure23is connected to one side of one of the sub-grid bodies211away from the other sub-grid body211. Specifically, for the dummy electrodes13, two adjacent ones of the disconnected structures23may be electrically connected or electrically disconnected. For the touch electrodes11and the leads12, at least two adjacent ones of the disconnected structures23are electrically connected to form the grid connection line22. Further, at least two adjacent ones of the disconnected structures23between two adjacent ones of the strip-shaped structures24are electrically connected to form the grid connection line22, which are conducive to realize conduction of the grid structures in the first direction01.

Refer toFIGS.4to6. In an embodiment, each one of the leads12includes a horizontal sub-lead121which extends in the first direction01and is connected to the corresponding touch electrode11. The first direction01is parallel to one side of the display panel close to the horizontal sub-lead121. The horizontal sub-lead121includes the sub-grid bodies211electrically connected in the first direction01.

Refer toFIG.4. The area A includes a partial area of the touch electrodes11(i.e., a backbone area of the touch electrodes11in the embodiment of the present disclosure, i.e., a middle area), a partial area of the leads12, and a partial area of the dummy electrodes13. As shown inFIGS.4and6, the horizontal sub-lead121includes a plurality of the sub-grid bodies211electrically connected in the first direction01. Specifically, in combination with the above discussion, it can be seen that the horizontal sub-lead121includes a plurality of grid bodies21arranged in the first direction01as described above, and each one of the grid bodies21includes two sub-grids bodies211disposed opposite to each other. Further, the sub-grid bodies211may have an arc line segment structure. Further, the two arc line segment structures in the same grid body21may be electrically connected. Specifically, top ends of the two arc line segment structures in the same grid body21are connected to each other, and bottom ends of the two arc line segment structures in the same grid body21are also connected to each other, so as to realize conduction of the horizontal sub-lead121in the first direction01.

Specifically, please refer toFIG.6.FIG.6is a schematic structural diagram of the horizontal sub-lead121provided by an embodiment of the present disclosure. The horizontal sub-lead121as shown inFIG.3includes the plurality of sub-grid bodies211arranged along the first direction01. In the first direction01, the horizontal sub-lead121as shown inFIG.6may sequentially include a first group of arc line segment structures h1, a second group of arc line segment structures h2, and so on. The first group of arc line segment structures h1includes an arc line segment structure h11and an arc line segment structure h12, wherein the arc line segment structure h11includes an arc line segment h111and a disconnected structure h112, and the arc line segment structure h12includes an arc line segment h121and a disconnected structure h122. The disconnected structure h112is disposed opposite the disconnected structure h122. The second group of arc line segment structure h2includes an arc line segment structure h21and an arc line segment structure h22, wherein the arc line segment structure h21includes an arc line segment h211and a disconnected structure h212, and the arc line segment structure h22includes an arc line segment h221and a disconnected structure h222. The disconnected structure h212is disposed opposite the disconnected structure h222. The disconnected structure h112in the arc line segment structure h11and the disconnected structure h122in the arc line segment structure h12are connected. The disconnected structure h212in the arc line segment structure h21is disposed opposite the disconnected structure h222in the arc line segment structure h22. The disconnected structure h212in the arc line segment structure h21and the disconnected structure h222in the arc line segment structure h22are connected. Atop end of the arc line segment h121in the arc line segment structure h12and a top end of the arc line segment h211in the arc line segment structure h21are connected, and a bottom end of the arc line segment h121in the arc line segment structure h12and a bottom end of the arc line segment h211in the arc line segment structure h21are connected. Any one of the arc line segments can be understood as the sub-grid body211described above, and any one of the disconnected structures can be understood as the disconnected structure23described above.

In an embodiment, as shown inFIGS.3to5andFIG.7, each one of the leads12further includes a vertical sub-lead122extending in the second direction02and connected to the horizontal sub-lead121. The second direction02is parallel to one side of the display panel close to the vertical sub-lead122. The vertical sub-lead122includes the strip-shaped structures24arranged in the second direction02, and two adjacent ones of the strip-shaped structures24are electrically connected or insulated from each other.

Please refer toFIG.7.FIG.7is a schematic structural diagram of the vertical sub-lead provided by an embodiment of the present disclosure. The vertical sub-lead122includes a first wiring structure1221and a second wiring structure1222. The first wiring structure1221includes two strip-shaped structures24disposed opposite each other, and two ends of the second wiring structure1222are individually connected to two of the sub-grid bodies211disposed opposite each other. The two strip structures24in the first wiring structure1221are respectively a first metal wire12211disposed to the left and a second metal wire12212disposed to the right, wherein the first metal wire12211may extend in the second direction02, and the second metal wire12212may also extend in the second direction02. The first metal wire12211and the second metal wire12212are disposed axisymmetrically, and the two ends of the second metal structure1222are individually connected to the first metal wire12211and the second metal wire12212. Certainly, the number of the strip structures24and the corresponding second wiring structure1222in the vertical sub-lead122are not limited herein.

Specifically, as shown inFIG.7, the first metal wire12211and the second metal wire12212may include a plurality of straight line segment structures and a plurality of arc line segment structures, which are alternately arranged. Each one of the arc line segment structures in the first metal wire12211includes an arc line segment and a disconnected structure disposed on one side of the arc line segment close to the second metal wire12212. The straight line segment structures in the first metal wire12211and the straight line segment structures in the second metal wire12212are disposed opposite to each other, and the arc line segment structures in the first metal wire12211and the arc line segment structures in the second metal wire12212are disposed opposite each other. The second wiring structure1222may include a plurality of connecting lines, each of which is individually connected between the two disconnected structures in the two arc line segment structures disposed opposite each other. Any one of the arc line segments can be understood as the grid body21described above, any one of the disconnected structures can be understood as the disconnected structure23described above, and any one of the straight line segment structures can be understood as the grid connection line22described above.

Further, please continue to refer toFIG.7. The plurality of straight line segment structures and the plurality of arc line segment structures alternately arranged in the first metal wire12211can be sequentially arranged as a straight line segment structure a1, an arc line segment structure b1, a straight line segment structure c1, an arc line segment structure d1, and so on. The arc line segment structure b1includes an arc line segment b11and a disconnected structure b12disposed on one side of the arc line segment b11close to the second metal wire12212. The arc line segment structure d1includes an arc line segment d11and a disconnected structure d12disposed on one side of the arc line segment d11close to the second metal wire12212. Similarly, the plurality of straight line segment structures and the plurality of arc line segment structures alternately arranged in the second metal wire12212may be arranged in sequence as a straight line segment structure a2, an arc line segment structure b2, a straight line segment structure c2, an arc line segment structure d2, and so on. The arc line segment structure b2includes an arc line segment b21and a disconnected structure b22disposed on one side of the arc line segment b21close to the first metal wire12211. The arc line segment structure d2includes an arc line segment d21and a disconnected structure d22disposed on one side of the arc line segment d21close to the first metal wire12211. The straight line segment structure a1is disposed opposite the straight line segment structure a2, the arc line segment structure b1is disposed opposite the arc line segment structure b2, the straight line segment structure c1is disposed opposite the straight line segment structure c2, the arc-line segment structure d1is disposed opposite the arc line segment structure d2, and so on. The plurality of connecting lines provided by the second wiring structure1222are respectively a connecting line b3, a connecting line d3, and so on. Two ends of the connecting line b3are individually connected to the disconnected line structure b12in the arc line segment structure b1and the disconnected structure b22in the arc line segment structure b2. Two ends of the connecting line d3are individually connected to the disconnected structure d12in the arc line segment structure d1and the disconnected structure d22in the arc line segment structure d2.

It should be noted that the straight line segment structures and the arc line segment structures alternately arranged in the first metal wire12211may be sequentially arranged as an arc line segment structure, a straight line segment structure, an arc line segment structure, a straight line segment structure, and so on. Correspondingly, the straight line segment structures and the arc line segment structures alternately arranged in the second metal wire12212may be sequentially arranged as an arc line segment structure, a straight line segment structure, an arc line segment structure, a straight line segment structure, and so on. In summary, whether initial segments of the first metal wire12211and the second metal wire12212are a straight line segment structure, or an arc line segment structure are not specifically limited by the embodiment of the present disclosure. Similarly, whether ending segments of the first metal wire12211and the second metal wire12212are a straight line segment structure or an arc line segment structure are further not specifically limited by the embodiment of the present disclosure.

In an embodiment, as shown inFIGS.4to5, the touch electrodes11includes the strip-shaped structures24arranged in the second direction02. Only a complete touch electrode11, of which an upper edge and a lower edge are in a zigzag shape, is schematically shown inFIG.8. Only a complete touch electrode11, which is rectangular, is schematically shown inFIG.2. It is understandable that in the second direction02, each one of the connected strip-shaped structures24transmits electrical signals. Specifically, refer toFIG.7for related description herein. Further, according to the above discussion, it can be seen that for the touch electrodes11, at least two adjacent ones of the disconnected structures23are electrically connected to form a grid connection line22. Further, at least two adjacent ones of the disconnected structures23are electrically connected between the two strip-shaped structures24to form a grid connection line22, which are conducive to realize conduction of the grid structures in the first direction01.

Refer toFIG.5. In an embodiment, the touch electrodes11include a plurality of lapping points111, and each one of the lapping points111is connected between two adjacent ones of the grid bodies21in the touch electrodes11, and the plurality of lapping points111are evenly distributed.

Specifically, as shown inFIG.7, two ones of the disconnected structures23arranged opposite each other in the touch electrodes11can be connected by each one of the lapping points111. It can be understood that by providing the lapping points111in the touch electrodes11to electrically connect two ones of the sub-grid bodies211which are arranged opposite to each other in the touch electrodes11, resistance of the touch electrodes11can be reduced, thereby allowing current to be conducted divergently. Further, it can be clearly seen that the lapping points111in the touch electrodes11are evenly distributed. It is understandable that centralized arrangement of the lapping points111in the touch electrodes11causes obviously different metal densities of different areas in the touch electrodes11, which leads to uneven brightness of screens generally. Therefore, in the embodiment of the present disclosure, the lapping points111are uniformly disposed in the touch electrodes11, so that the lapping points111are evenly distributed in a dispersed state, which can prevent uneven brightness of screens and improve display effects.

In an embodiment, as shown inFIGS.2,8, and5, the touch electrodes11includes a backbone area located in the middle of the touch electrodes11and extending in the first direction01. A contour formed by the lapping points111in the backbone area is formed as a plurality of rhombus structures arranged in the first direction01.

It is understandable that in a case that the contour formed by the lapping points111in the backbone area of the touch electrodes11is formed as the rhombus structures arranged in the first direction01, the lapping points111are dispersedly distributed in the backbone area of the touch electrodes11, which can further reduce resistance of the touch electrodes11and allow current to be conducted divergently. It should be noted that, in other embodiments, the contour formed by the lapping points111in the backbone area of the touch electrodes11may further be formed into a plurality of structures of other shapes arranged in the first direction01, such as a circular shape, a square shape, etc., which is not specifically limited by the embodiments of the present disclosure. Further, the touch electrodes11further includes a plurality of edge areas located on both sides of the backbone area, and the lapping points111in the touch electrodes11are further located in the edge areas. It is understandable that by providing the lapping points111in both the backbone area and the edge areas of the touch electrodes11, the lapping points111are connected between two adjacent ones of the grid bodies21in the touch electrodes11, so that multiple lapping points111can be dispersedly distributed in the touch electrodes11, thereby further reducing resistance of the touch electrodes11and allowing current to be conducted divergently.

In an embodiment, as shown inFIGS.3to5, the dummy electrodes13includes the strip-shaped structures24arranged in the second direction02, and the strip-shaped structures24in the dummy electrodes are insulated from the touch electrodes11and the leads12. Specifically, when the disconnected structures23in the strip-shaped structures24close to the touch electrodes11in the dummy electrodes13are far away from the touch electrodes11, blocking for the touch electrodes11can be achieved by the opening of the arc line segment structure. When the disconnected structures23in the strip-shaped structure24close to the touch electrodes11in the dummy electrodes13are close to the touch electrodes11, blocking for the touch electrodes11can be achieved by the end of the disconnected structure23. In the same way, the dummy electrodes13can be blocked from the leads12by the end of the grid connection line22, or can be blocked from the leads12by the upper top or lower top of the sub-grid body211. It is understandable that the strip-shaped structures24in the dummy electrodes13are insulated from the touch electrodes11and the leads12, which can prevent affecting touch detection effect.

Based on the same inventive concept, an embodiment of the present disclosure further provides a mobile terminal, including the above-mentioned display panel provided by the embodiments of the present disclosure. The mobile terminal can be any product or component with a display function, such as mobile phones, tablet computers, televisions, displays, notebook computers, digital photo frames, navigators, and so on. Principle of the mobile terminal to solve the problem is similar to that of the aforementioned display panel. Therefore, implementation of the mobile terminal may refer to the implementation of the aforementioned display panel, which is not repeated herein.

Based on the same inventive concept, an embodiment of the present disclosure further provides a method of manufacturing the above-mentioned display device. Specifically, the method includes the following steps.

First, a thin film transistor array layer is manufactured on a substrate, an organic light-emitting layer is manufactured on the thin film transistor layer, and an encapsulation layer is manufactured on the organic light-emitting layer. Then, metal material is deposited on the encapsulation layer, and a conductive layer is formed by sequentially applying photoresist, exposing, developing, etching, and removing photoresist. The conductive layer includes a plurality of touch electrodes, a plurality of leads, and a plurality of dummy electrodes, wherein each one of the leads is disposed between two adjacent ones of the touch electrodes, each one of the dummy electrodes is disposed between one of the touch electrodes and one of the leads which are adjacent to each other, one end of each one of the leads is electrically connected to the corresponding touch electrode, and the other end is electrically connected to a touch chip, and the dummy electrodes are electrically connected to neither the touch electrodes nor the leads. The touch electrodes, the leads, and the dummy electrodes all include a grid structure of a same shape. It is understandable that since the grid shapes of the touch electrodes, the leads, and the dummy electrodes are the same, i.e., reflective effects of which are the same, thereby greatly preventing uneven brightness of screens, and improving display effects of display panels. It should be noted that, in order to protect the conductive layer, organic material may further be used to manufacture a protective layer on the conductive layer.

The display panel and the mobile terminal provided by the present disclosure includes a substrate and a conductive layer disposed on the substrate, wherein the conductive layer includes the plurality of touch electrodes, the plurality of leads, and the plurality of dummy electrodes. Each one of the leads is disposed between two adjacent ones of the touch electrodes, and each one of the dummy electrodes is disposed between one of the touch electrodes and one of the leads which are adjacent to each other. One end of each one of the leads is electrically connected to the corresponding touch electrode, and the other end is electrically connected to a touch chip. The dummy electrodes are electrically connected to neither the touch electrodes nor the leads. The touch electrodes, the leads, and the dummy electrodes all include a grid structure of a same shape. In the present disclosure, the shapes of the grid structures of the touch electrodes, the leads, and the dummy electrodes are the same, so that reflective effects of the three are the same, which greatly prevents uneven brightness of screens, and improves display effects of display panels.

Finally, it should be illustrated that the above embodiments are merely exemplary, and are not intended to limit the claims. Although the embodiments have been illustrated in detail, those of ordinary skill in the art should understand that modifications can still be made to the technical solutions recited in various embodiments described above, or equivalent substitutions can still be made to a part of technical features thereof, and these modifications or substitutions will not make the essence of the corresponding technical solutions depart from the spirit and scope of the claims.