CN107977114B - Display panel and display device thereof - Google Patents
Display panel and display device thereof Download PDFInfo
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- CN107977114B CN107977114B CN201711238121.XA CN201711238121A CN107977114B CN 107977114 B CN107977114 B CN 107977114B CN 201711238121 A CN201711238121 A CN 201711238121A CN 107977114 B CN107977114 B CN 107977114B
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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
Abstract
The embodiment of the invention provides a display panel and a display device thereof, relates to the technical field of display, and is used for improving the touch uniformity of the display panel. The display panel comprises a display area and a peripheral area surrounding the display area, and a notch is formed in one side edge of the display area; the display area comprises a plurality of first touch electrodes which extend along a first direction and are arranged along a second direction, the plurality of first touch electrodes comprise first gap touch electrodes which are adjacent to the gaps in the first direction, and the plurality of first touch electrodes also comprise first normal touch electrodes which are not adjacent to the gaps in the first direction; and the first resistance compensation unit is used for carrying out resistance compensation on the first gap touch control electrodes, so that the difference value between the resistance value of the first gap touch control electrode and the resistance value of the first normal touch control electrode is smaller than a preset value. The display panel is suitable for the field of display devices.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device thereof.
Background
The most information-receiving of human sensory organs is the visual organ (eye), and people are increasingly required to utilize abundant visual information in production and life, so that display technology plays a very important role in the human society today.
Display technologies have appeared to date, the technological development is very rapid, and cathode ray tube technologies (CRT), Plasma Display (PDP), Liquid Crystal Display (LCD), and even the latest OLED display and micro LED display technologies have appeared in sequence. With the development of society and the increasing demand of human beings for living things, the display technology is rapidly advancing toward high contrast, high resolution, full color display, low power consumption, high reliability, long life, and thinness and lightness.
Meanwhile, with the development of science and technology, the requirement of consumers cannot be met by a simple rectangular display device, so that display devices in various shapes are produced. Moreover, the display device has more and more functions, and the display device can not only realize display, but also realize touch control and other functions. How to improve the touch uniformity of the display panel and design a display panel with excellent touch performance is a major technical problem currently faced in the industry.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device thereof, which are used for improving the touch uniformity of the display panel.
In a first aspect, the present invention provides a display panel, which includes a display area and a peripheral area surrounding the display area, wherein a notch is disposed on one side of the display area;
the display area comprises a plurality of first touch electrodes extending along a first direction and arranged along a second direction, the plurality of first touch electrodes comprise first gap touch electrodes adjacent to the gaps in the first direction, and the plurality of first touch electrodes further comprise first normal touch electrodes which are not adjacent to the gaps in the first direction;
and the first resistance compensation unit is used for carrying out resistance compensation on the first notch touch control electrodes, so that the difference value between the resistance value of the first notch touch control electrode and the resistance value of the first normal touch control electrode is smaller than a preset value.
In a second aspect, the present invention provides a display device comprising the display panel according to the first aspect of the present invention.
The beneficial effects of the aspects and any possible implementation described above are as follows:
in this embodiment, a first resistance compensation unit is disposed to perform resistance compensation on the first notch touch electrode at the notch, so that the resistance value of the first notch touch electrode at the notch is equal to, approximately equal to, or the resistance difference between the first notch touch electrode and the first normal touch electrode is within a preset value range, and thus the touch sensitivity at the notch is not affected. Specifically, two parts of the first notch touch electrodes arranged on two sides of the notch are electrically connected through the first resistance compensation unit, so that the first notch touch electrodes at the notch cannot be disconnected due to the notch, that is, the first notch touch electrodes at the notch are electrically connected with the first resistance compensation unit, and can be used as a whole touch electrode to realize a touch function. Furthermore, the first notch touch electrode at the notch is subjected to resistance compensation through the first resistance compensation unit, and the compensation resistance value is the same as, or approximately equal to or within a preset value range of the resistance value of the touch electrode removed from the notch, so that the resistance value of the first notch touch electrode at the notch can be matched with the resistance value of a normal first normal touch electrode which is not cut.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 9 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 11 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 12 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used to describe the touch electrodes in the embodiments of the present invention, these should not be limited by these terms. These terms are only used to distinguish the touch electrodes from each other. For example, the first touch electrode may also be referred to as a second touch electrode, and similarly, the second touch electrode may also be referred to as a first touch electrode, and similarly, the first resistance compensation unit may also be referred to as a second resistance compensation unit without departing from the scope of the embodiments of the present invention.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element.
In this embodiment, as shown in fig. 1, which is a schematic structural diagram of a display panel according to an embodiment of the present invention, the display panel 400 includes a display area 401 and a peripheral area 402 surrounding the display area 401, and a notch 40 is disposed on one side of the display area 401. Naturally, the area of the gap 40 is not shown, and thus the gap 40 belongs to the peripheral area 402. For example, an earphone, a camera, a microphone, or the like may be disposed at the notch 40.
The display area 401 includes a plurality of first touch electrodes 1 extending along the first direction 100 and arranged along the second direction 200, the plurality of first touch electrodes 1 includes first notch touch electrodes 11 adjacent to the notches 40 in the first direction 100, the plurality of first touch electrodes 1 further includes first normal touch electrodes 12 not adjacent to the notches 40 in the first direction 100, and the first normal touch electrodes 12 can be understood as normal touch electrodes extending along the first direction 100 without being affected by the notches 40.
With continued reference to fig. 1, the display panel 400 further includes a first resistance compensation unit 13 corresponding to each first gap touch electrode 11, and the first resistance compensation unit 13 is configured to perform resistance compensation on the first gap touch electrode 11, so that a difference between a resistance value of the first gap touch electrode 11 and a resistance value of the first normal touch electrode 12 is smaller than a preset value. In this embodiment, the first notched touch electrode 11 corresponds to the first resistance compensation unit 13, which can be understood as that the first notched touch electrode 11 is electrically connected to the first resistance compensation unit 13, so that the first resistance compensation unit 13 provides resistance compensation for the first notched touch electrode 11.
It is understood that, under the influence of the notch 40, the first touch electrode 1 is cut such that the first touch electrode 1 adjacent to the notch 40 is composed of two portions of electrodes disposed in opposite side regions of the notch 40. The resistance value compensated by the first resistance compensation unit 13 for the first notched touch electrode 11 electrically connected thereto is equivalent to or substantially equivalent to the resistance value of the touch electrode removed by the influence of the notch 40, or the resistance difference between the two is smaller than a preset value. So that the difference between the compensated resistance value of the first touch electrode 1 and the resistance value of the first normal touch electrode 12 is smaller than the preset value. In the present application, the preset value means that, within the range of the preset value, the difference between the touch performances of the two is small, and the uniformity of the touch performance of the whole display panel 400 is not affected. The specific design standard of the preset value can be comprehensively determined according to the actual product design and the specific process conditions, and under the condition of ensuring the touch uniformity, the difference value of the resistance values of the first touch electrode and the first normal touch electrode within a certain allowable range is the preset value, and the preset value may be different under different specific process environments.
It should be noted that the first resistance compensation unit 13 shown in fig. 1 is disposed at a position below the notch 40 with reference to the orientation shown in fig. 1, but the present example does not particularly limit the position of the first resistance compensation unit 13 electrically connected to the first notch touch electrode 11, as long as it is electrically connected to the first notch touch electrode 11 and can provide resistance compensation for the first notch touch electrode 11. For example, fig. 1 shows two notched touch electrodes 11, three first normal touch electrodes 12, and two first resistance compensation units 13, but the number of the notched touch electrodes, the first normal touch electrodes, and the first resistance compensation units is not particularly limited in this embodiment, and the size and the position relationship of the notched touch electrodes, the first normal touch electrodes, and the first resistance compensation units are subject to specific products.
In the prior art, most display panels, such as mobile phones, are provided with front cameras, so that corresponding notch shapes can be cut according to the cameras; still use the cell-phone as an example, perhaps can set up the earphone etc. can cut display panel according to the shape of earphone, cuts out corresponding breach shape, and then makes one side of this display panel have the breach. Along with the function of the display panel is more and more, exemplarily, the display panel is not only used for displaying, but also has the function of touch control and the like, when one side of the display device is provided with a notch, the touch control electrode at the notch is cut for matching with the notch, at the moment, the touch control electrodes at two sides of the notch are forced to be disconnected, so that the resistance value of the touch control electrode is influenced, the resistance value of the touch control electrode at the notch is different from the resistance value of the normal conventional touch control electrode in other areas, the touch control sensitivity is influenced, and the touch control performance of the display panel is further influenced.
In this embodiment, the first resistance compensation unit 13 is arranged to perform resistance compensation on the first notch touch electrode 11 at the notch 40, so that the resistance value of the first notch touch electrode 11 at the notch is equal to, approximately equal to, or the resistance difference between the resistance value of the first notch touch electrode 11 and the resistance value of the first normal touch electrode 12 is within a preset value range, and thus the touch sensitivity at the notch is not affected. Specifically, two portions of the first notch touch electrode 11 disposed at two sides of the notch 40 are electrically connected through the first resistance compensation unit 13, so that the first notch touch electrode 11 at the notch 40 is not disconnected due to the notch, that is, the first notch touch electrode 11 at the notch 40 is electrically connected with the first resistance compensation unit 13, and can be used as a whole touch electrode to implement a touch function. Further, the first resistance compensation unit 13 performs resistance compensation on the first notch touch electrode 11 at the notch 40, and the compensation resistance value is the same as, or approximately the same as, or within a preset value range as the resistance value of the touch electrode removed from the notch 40, so that the resistance value of the first notch touch electrode 11 at the notch 40 can be matched with the resistance value of the normal uncut first normal touch electrode.
In the present application, the number and the position of the notches are not limited, and the number of the notches in the display area of the display panel may be one or more. The position of the notch can be located at the edge of the display panel, and when the display panel is polygonal, the notch can be located at any side edge or multiple side edges of the display panel. The notches can be arranged adjacently or at a certain distance. Further, in some implementations, the gap may also be located in the middle of the display area.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention. In fig. 2, the notch 40 is located in the middle of the display area of the display panel 400, and the first notch touch electrode 11 and the first normal touch electrode 12 in this embodiment can be arranged in the manner described above with reference to the embodiment shown in fig. 1. It should be added that, based on the orientation shown in fig. 2, the first resistance compensation unit 13 may be located below the notch 40, or above the notch 40, or may be located partially below the notch 40 and partially above the notch 40 as shown in fig. 2, and the specific position of the first resistance compensation unit 13 is not limited in this embodiment. In fact, the position of the first resistance compensation unit 13 is subject to a specific product.
The structure of the resistance compensation unit in fig. 1 is described below:
in a specific implementation manner, as shown in fig. 3, which is another schematic structural diagram of the display panel according to the embodiment of the invention, the first resistance compensation unit includes at least one first resistance compensation electrode 130 arranged along the first direction 100. The first resistance compensation electrode 130 is a first hourglass electrode 1305 extending along the first direction 100. Since the width a of the first hourglass-shaped electrode 1305 in the second direction 200 is smaller than the width b of the first normal touch electrode 12 in the second direction 200, the resistance of the first hourglass-shaped electrode 1305 is relatively large, and the specific reasons are analyzed as follows:
the resistance of the first resistance compensation electrode 130 can be given by the following formula, i.e., R1＝ρ1L1/S1Where ρ is1Denotes the resistivity, L, of the first resistance compensation electrode1Denotes the length of the first resistance compensation electrode in the first direction, S1Representing the cross-sectional area of the first resistance compensation electrode in the second direction. The width a of the first resistance compensation electrode 130 in the second direction 200 is small such thatThe cross-sectional area S of the first resistance compensation electrode 130 in the second direction 200 is obtained1Is smaller. Since the resistance value of the first resistance compensation electrode 130 and the cross-sectional area S thereof1Inversely proportional, the smaller the cross-sectional area of the first resistance compensation electrode 130 in the second direction 200, the greater the resistance value of the corresponding first resistance compensation electrode 130. In this embodiment, the resistance of the first resistance compensation electrode 130 may be understood as the first hourglass electrode 1305.
With reference to the above embodiment shown in fig. 1 again, although the resistance of the first gap touch electrode 11 is reduced due to the influence of the gap 40, the resistance compensation can be performed by the first resistance compensation electrode 130 electrically connected to the first gap touch electrode 11, so that the resistance of the compensated first gap touch electrode 11, or the sum of the resistance of the first gap touch electrode 11 and the resistance of the first resistance compensation electrode 130 electrically connected to the first gap touch electrode 11, is matched with the resistance of the first normal touch electrode 12, so that on one hand, the touch sensitivity at the gap can be improved, and on the other hand, the touch uniformity on the whole display panel is better, and the touch operation command can be recognized.
In another specific implementation manner, as shown in fig. 4, which is another schematic structural diagram of the display panel provided in the embodiment of the present invention, alternatively, the first resistance compensation electrode 130 includes a first arc electrode 1301 extending along the first direction 100 and a first rectangular block electrode 1302 electrically connected to the first arc electrode 1301. In this embodiment, since the width of the first arc-shaped electrode 1301 in the second direction 200 is small, the resistance values of the first arc-shaped electrode 1301 and the first rectangular block-shaped electrode 1302 electrically connected thereto are relatively large, and resistance compensation can be provided for the first gap touch electrode 11, so that the resistance value of the compensated first gap touch electrode 11 is equivalent to or substantially equivalent to the resistance value of the first normal touch electrode 12, or the difference between the two values is within a predetermined range. The principle of increasing the resistance value of the first arc electrode 1301 and the first rectangular block electrode 1302 electrically connected thereto is as described above, and is not described herein again.
It should be noted that in the present embodiment, the first resistance compensation electrode 130 may be disposed in the area below the notch 40, so as to be conveniently electrically connected to the corresponding first notch touch electrode 11. Due to the influence of the notch 40, if the first resistance compensation electrode 130 disposed below the notch 40 is still disposed according to the width of the first notch touch electrode 11 in the second direction 200, or the width of the touch electrode removed under the influence of the notch in the second direction is disposed, the normal arrangement of the subsequent first normal touch electrodes may be influenced. In this embodiment, the first arc-shaped electrode portion may be disposed in the gap region, and the space below the gap occupied by the first arc-shaped electrode portion is released, so as to facilitate the subsequent arrangement of the first normal touch electrodes.
In another specific implementation, as shown in fig. 5, it is another structural schematic diagram of the display panel according to the embodiment of the invention, or the first resistance compensation electrode 130 is a first rectangular electrode 1304 extending along the first direction 100. Due to the influence of the notch 40, the width of the first rectangular electrode 1304 in the second direction 200 is correspondingly reduced, so as to avoid the influence on the arrangement of the subsequent first normal touch electrodes. Since the width of the first rectangular electrode 1304 in the second direction 200 is smaller, the corresponding cross-sectional area is also reduced, and since the resistance value and the cross-sectional area are in an inverse relationship, the resistance value of the first rectangular electrode (the first resistance compensation electrode 130) is correspondingly increased, and further, the resistance compensation effect on the first gap touch electrode 11 can be achieved.
It should be noted that, as an example, fig. 2 to 5 illustrate the first notched touch electrode in a stripe structure and the first normal touch electrode in a stripe structure, and in fact, the structural shape of the first notched touch electrode and the first normal touch electrode is not particularly limited in this embodiment. For example, as shown in fig. 6, which is another schematic structural diagram of the display panel provided in the embodiment of the present invention, the first normal touch electrode 12 and the first gap touch electrode 11 may be a plurality of touch electrode blocks electrically connected to each other.
In one embodiment, with continued reference to fig. 6, the first notched touch electrode 11 is reused as the first resistance compensation unit 13. Due to the influence of the notch 40, the width of the first resistance compensation unit 13 disposed below the notch 40 in the second direction 200 is correspondingly reduced, so that the resistance value of the first resistance compensation unit 13 is relatively large (see above for the principle explanation), thereby performing the function of resistance compensation on the first notch touch electrode 11.
After performing statistical analysis on the compensation data, the inventors found that, for example, still taking the block-shaped first notch touch electrode 11, the block-shaped first normal touch electrode 12, and the block-shaped first resistance compensation unit 13 shown in fig. 6 as an example, if the same number of touch electrode blocks as the touch electrode blocks cut out under the influence of the notch are still provided as the first resistance compensation unit 13 along the first direction 100 in the area below the notch 40, since the width of the first resistance compensation unit 13 in the second direction is relatively small, the resistance value of the first resistance compensation unit 13 may be larger than that of the removed touch electrode blocks.
In order to avoid the above problem, during the setting process, the number of the touch electrode blocks constituting the first resistance compensation unit 13 may be appropriately reduced, so that the resistance value of the first resistance compensation unit 13 is equivalent to, or substantially equivalent to, the resistance value of the touch electrode block removed by being affected by the notch, or the difference between the two is within a predetermined range, so that the resistance value of the compensated first notch touch electrode 11 is equivalent to the resistance value of the first normal touch electrode 12, or the difference between the two is within the predetermined range.
It should be added that in the present embodiment, although the number of the touch electrode blocks constituting the first resistance compensation unit 13 is reduced, the resistance value can be increased by adjusting the length of each touch electrode block constituting the first resistance compensation unit 13 in the first direction 100. As shown in fig. 6, the lengths of the two touch electrode blocks constituting the first resistance compensation unit 13 in the first direction 100 are appropriately increased so that the resistance values of the two touch electrode blocks are equivalent to the resistance values of the three normal touch electrode blocks that are removed.
In an implementation manner, as shown in fig. 7, which is another schematic structural diagram of the display panel according to the embodiment of the present invention, the display area 401 includes a plurality of second touch electrodes 2 extending along the second direction 200 and arranged along the first direction 100, the plurality of second touch electrodes 2 includes second notch touch electrodes 21 adjacent to the notch 40 in the second direction 200, and the plurality of second touch electrodes 2 further includes second normal touch electrodes 22 not adjacent to the notch 40 in the second direction 200. The second normal touch electrode 22 can be understood as a normal touch electrode extending along the second direction 200 without being affected by the notch 40.
The display panel 400 further includes a second resistance compensation unit 14 corresponding to each second gap touch electrode 21, and the second resistance compensation unit 14 is configured to perform resistance compensation on the second gap touch electrode 21, so that a difference between a resistance value of the second gap touch electrode 21 and a resistance value of the second normal touch electrode 22 is smaller than a preset value. In this embodiment, the second notched touch electrode 21 corresponds to the second resistance compensation unit 14, which can be understood as that the second notched touch electrode 21 is electrically connected to the second resistance compensation unit 14 correspondingly, so that the second resistance compensation unit 14 provides resistance compensation for the second notched touch electrode 21.
It should be added that, under the influence of the notch 40, the length of the second notch touch electrode 21 extending along the second direction 200 in the second direction is shorter, and accordingly the resistance value of the second notch touch electrode 21 is smaller than the resistance value of the second normal touch electrode 22. In this embodiment, the second resistance compensation unit 14 performs resistance compensation on the second gap touch electrode 21 electrically connected to the second gap touch electrode, so that the compensated resistance value of the second gap touch electrode 21, or the sum of the resistance value of the second gap touch electrode 21 and the resistance value of the second resistance compensation unit 14 electrically connected to the second gap touch electrode, is equal to or approximately equal to the resistance value of the second normal touch electrode 22. Furthermore, the touch sensitivity at the notch is provided, and for the whole display panel, the touch performance in each area of the display panel is uniform and consistent, so that the touch operation instruction is convenient to identify.
Of course, the resistance of the second resistance compensation unit 14 is equivalent to, or substantially equivalent to, the resistance of the touch electrode that is removed by being influenced by the notch 40, or the difference between the two is within a certain range.
The structure of the second resistance compensation unit is described below:
with continued reference to fig. 7, the second resistance compensation unit 14 includes at least one second resistance compensation electrode 140 arranged along a second direction 200.
In a specific embodiment, as shown in fig. 8, which is another schematic structural diagram of the display panel according to the embodiment of the present invention, the second resistance compensation electrode 140 is a second hourglass-shaped electrode 1401 extending along the second direction 200.
Since the width c of the second hourglass-shaped electrode 1401 in the first direction 100 is smaller than the width d of the second normal touch electrode 22 in the first direction 100, the resistance of the second hourglass-shaped electrode 1401 is relatively large, and the specific reasons are as follows:
the resistance of the second resistance compensation electrode 140 can be given by the following formula, i.e., R2＝ρ2L2/S2Where ρ is2Denotes the resistivity, L, of the second resistance compensation electrode2Representing the length of the second resistance compensation electrode in the second direction, S2Representing the cross-sectional area of the second resistive compensation electrode in the first direction. The width a of the second resistance compensation electrode 140 in the first direction 100 is small so that the cross-sectional area S of the second resistance compensation electrode 140 in the first direction 1002Is smaller. The resistance value and the cross-sectional area S of the second resistance compensation electrode 1402Inversely proportional, the smaller the cross-sectional area of the second resistance compensation electrode 140 in the first direction 100, the greater the resistance value of the corresponding second resistance compensation electrode 140. In this embodiment, the resistance of the second resistance compensation electrode 140 may be understood as the second hourglass electrode 1401.
With reference to the above-mentioned embodiment shown in fig. 7 again, although the length of the second notched touch electrode 21 affected by the notch 40 is shorter in the second direction 200, so that the resistance value thereof is smaller, it can be facilitated that the second resistance compensation electrode 140 electrically connected thereto performs resistance compensation on the second notched touch electrode 21, so that the resistance value of the second notched touch electrode 21 after compensation, or can be understood as the sum of the resistance value of the second notched touch electrode 21 and the resistance value of the second resistance compensation electrode 140 electrically connected thereto, matches the resistance value of the second normal touch electrode 12, so that on one hand, the touch sensitivity at the notch 40 can be improved, and on the other hand, the touch uniformity on the whole display panel is better, and the touch operation command can be advantageously recognized.
In another specific implementation manner, as shown in fig. 9, which is another schematic structural diagram of the display panel provided in the embodiment of the present invention, alternatively, the second resistance compensation electrode 140 includes a second arc electrode 1402 extending along the second direction 200 and a second rectangular block electrode 1403 electrically connected to the second arc electrode 1402. In this embodiment, since the width of the second arc electrode 1402 in the first direction 100 is small, the resistance value of the second arc electrode 1402 and the second rectangular block-shaped electrode 1403 electrically connected thereto is relatively large, so as to provide resistance compensation for the second gap touch electrode 21, and the resistance value of the compensated second gap touch electrode 21 is equivalent to or substantially equivalent to the resistance value of the second normal touch electrode 22, or the difference between the two values is within a predetermined range. The principle of increasing the resistance value of the second arcuate electrode 1402 and the second rectangular block electrode 1403 electrically connected thereto is as described above, and is not described herein again. This embodiment also allows the second arcuate electrode 1402 to be partially disposed in the area of the gap 40, freeing it from occupying the space below the gap 40.
In another specific embodiment, with continued reference to fig. 7, alternatively, the second resistance compensation electrode 140 is a second rectangular electrode extending along the second direction 200. In this embodiment, the width of the second rectangular electrode in the first direction 100 can be set to be smaller, and the corresponding cross-sectional area thereof can also be reduced, because the resistance value is in inverse proportion to the cross-sectional area, the resistance value of the second rectangular electrode (the second resistance compensation electrode 140) can be correspondingly increased, and further the resistance compensation effect on the second gap touch electrode 21 can be achieved.
It should be noted that, as an example, fig. 7 to 9 illustrate the second notched touch electrode in a stripe structure and the second normal touch electrode in a stripe structure, and in fact, the present embodiment does not make any particular limitation on the structural shapes of the second notched touch electrode and the second normal touch electrode. For example, as shown in fig. 10, which is another schematic structural diagram of the display panel provided in the embodiment of the present invention, the second normal touch electrode 22 and the second gap touch electrode 21 may be a plurality of touch electrode blocks electrically connected to each other. In addition, in this embodiment, the second notched touch electrode block can also be reused as the second resistance compensation unit 14, and at this time, the width of the second resistance compensation unit 14 in the first direction 100 is smaller than the width of the second normal touch electrode 22 in the first direction 100.
In an implementation manner, as shown in fig. 11, which is another structural schematic diagram of the display panel according to the embodiment of the present invention, the first touch electrode 1 is an induction electrode in a mutual capacitance type touch electrode, and the first notch touch electrode 11 and the corresponding first resistance compensation unit 13 are electrically connected to each other in the first direction 100; the second touch electrode 2 is a driving electrode of the mutual capacitive touch electrode, and the second gap touch electrode 21 and the corresponding second resistance compensation unit 14 are electrically connected to each other in the second direction 200. The following briefly introduces the working principle of the mutual capacitance type touch electrode:
with reference to fig. 11, the sensing electrode (the first touch electrode 1) disposed along the first direction 100 and the driving electrode (the second touch electrode 2) disposed along the second direction 200 are mutually sensed to generate a sensing capacitance, and a corresponding touch command can be obtained by analyzing a change of the sensing capacitance before and after a user touches the display panel 400.
It should be noted that, in the embodiment, the structures of the first touch electrode 1 and the second touch electrode 2 may be both strip-shaped structures as shown in fig. 11; the substrate may be a block structure, and the substrate is not particularly limited in this embodiment. Moreover, the first touch electrode 1 and the second touch electrode 2 may be disposed on the same film layer, for example, if the display panel is a liquid crystal display panel, the first touch electrode and the second touch electrode may be disposed on the same layer as the common electrode or the pixel electrode; the first touch electrode 1 and the second touch electrode 2 may be disposed on different layers respectively.
In this embodiment, the first touch electrode 1, the first resistance compensation unit 13, the second touch electrode 2, and the second resistance compensation unit 14 are preferably disposed in the same layer. At this time, when the first touch electrode 1 and the second touch electrode 2 are respectively an induction electrode and a driving electrode in the mutual capacitance type touch electrode, the touch performance between the two electrodes is not interfered by the film layer, and is relatively stable.
In an implementation manner, as shown in fig. 12, which is another schematic structural diagram of the display panel according to the embodiment of the present invention, the first touch electrodes may be self-contained touch electrodes, and each of the first touch electrodes includes a plurality of first touch electrode blocks 3 arranged along the first direction 100. The display panel 400 further includes: and the first touch lead wires 4 are electrically connected with the first touch electrode blocks 3 in a one-to-one correspondence manner. Inevitably, one end of each first touch lead 4, which is not electrically connected to the first touch electrode block 3, is electrically connected to the integrated circuit IC, so that the integrated circuit IC can be understood as the driving end of the self-contained touch electrode, the integrated circuit IC provides a driving signal for the self-contained touch electrode and collects the sensing signal of each self-contained touch electrode, when a certain position of the display panel is touched, the sensing signal changes, so that the touch position can be determined, and a corresponding touch command can be output.
It should be noted that, with reference to fig. 12, the self-contained touch electrode 5 disposed below the notch 40 is affected by the notch 40, and at this time, the size of the self-contained touch electrode 5 can be adjusted, so that the difference between the resistance values of the self-contained touch electrode 5 and the resistance value of the first touch electrode block 3 is within a preset range.
The display panel in this embodiment may be a liquid crystal display panel or an organic light emitting display panel. For example, when the display panel is a liquid crystal display panel, the liquid crystal display panel includes an array substrate, a color film substrate, and a liquid crystal layer disposed between the array substrate and the color film substrate, and the sensing electrode (the first touch electrode) and the driving electrode (the second touch electrode) may be disposed on a side of the array substrate facing the color film substrate, or on a side of the color film substrate facing the array substrate, that is, an in-cell structure; alternatively, a touch panel, that is, an on-cell structure, may be further disposed on the color film substrate. When the display panel is an organic light emitting display panel, the organic light emitting display panel may include a cover plate, and the sensing electrode (the first touch electrode) and the driving electrode (the second touch electrode) may be disposed on the cover plate, although a gap may be disposed on a side of the cover plate. In addition, when the display panel is an organic light emitting display panel, the organic light emitting display panel may also be an organic light emitting display panel adopting film encapsulation, the touch electrode may be disposed on a surface (on-cell structure) of one side of the film encapsulation layer away from the light emitting material layer, may also be disposed between the film encapsulation layer and a substrate layer of the OLED panel (in-cell structure), or may be disposed in the film encapsulation layer, or may be an external touch structure in which the touch panel with corresponding notches is attached to an outer side of the film encapsulation layer of the organic light emitting display panel.
In addition, the display panel of the present application may be various types of display panels such as electronic paper, a Quantum Dot Light Emitting diode (QLED) display panel, or a micro LED (micro Light Emitting diode, μ LED) panel. In some implementations, the display panel may be a rigid display panel or a flexible panel, which is not limited in this application.
In this embodiment, as shown in fig. 13, which is a schematic structural diagram of a display device 500 according to an embodiment of the present invention, the display device 500 includes the display panel 400 according to any of the embodiments. It should be noted that fig. 13 illustrates a mobile phone as an example of the display device, but the display device is not limited to the mobile phone, and specifically, the display device may include, but is not limited to, any electronic device having a display function, such as a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), an MP4 player, or a television.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The display panel is characterized by comprising a display area and a peripheral area surrounding the display area, wherein a notch is arranged on one side of the display area;
the display area comprises a plurality of first touch electrodes extending along a first direction and arranged along a second direction, the plurality of first touch electrodes comprise first gap touch electrodes adjacent to the gaps in the first direction, and the plurality of first touch electrodes further comprise first normal touch electrodes which are not adjacent to the gaps in the first direction;
the first resistance compensation unit is used for performing resistance compensation on the first notch touch control electrodes, so that the difference value between the resistance value of the first notch touch control electrode and the resistance value of the first normal touch control electrode is smaller than a preset value;
the first resistance compensation unit comprises at least one first resistance compensation electrode arranged along the first direction;
the first resistance compensation electrode is a first hourglass electrode extending in the first direction,
alternatively, the first resistance compensation electrode includes a first bow electrode extending in the first direction and a first rectangular block electrode electrically connected to the first bow electrode.
2. The display panel according to claim 1, wherein the first touch electrodes are self-capacitance touch electrodes, each of the first touch electrodes comprising a plurality of first touch electrode blocks arranged along the first direction;
the display panel further includes:
and the first touch lead wires are electrically connected with the first touch electrode blocks in a one-to-one correspondence manner.
3. The display panel of claim 1, wherein a first notched touch electrode is reused as the first resistance compensation unit.
4. The display panel according to claim 1,
the display area comprises a plurality of second touch electrodes extending along the second direction and arranged along the first direction, the plurality of second touch electrodes comprise second gap touch electrodes adjacent to the gaps in the second direction, and the plurality of second touch electrodes further comprise second normal touch electrodes which are not adjacent to the gaps in the second direction;
and the second resistance compensation unit is used for performing resistance compensation on the second notch touch control electrodes, so that the difference between the resistance value of the second notch touch control electrode and the resistance value of the second normal touch control electrode is smaller than a preset value.
5. The display panel according to claim 4,
the second resistance compensation unit comprises at least one second resistance compensation electrode arranged along the second direction;
the second resistance compensation electrode is a second hourglass electrode extending in the second direction,
or the second resistance compensation electrode comprises a second arc electrode extending along the second direction and a second rectangular block electrode electrically connected with the second arc electrode,
alternatively, the second resistance compensation electrode is a second rectangular electrode extending in the second direction.
6. The display panel according to claim 4, wherein the first touch electrode is an inductive electrode in a mutual capacitance type touch electrode, and the first gap touch electrode and the corresponding first resistance compensation unit are electrically connected to each other in the first direction;
the second touch electrode is a driving electrode in the mutual capacitance type touch electrode, and the second gap touch electrode and the corresponding second resistance compensation unit are electrically connected with each other in the second direction.
7. The display panel according to claim 6, wherein the first touch electrode, the first resistance compensation unit, the second touch electrode and the second resistance compensation unit are disposed in the same layer.
8. The display panel according to claim 1, wherein the display panel is an organic light emitting display panel.
9. A display device comprising the display panel according to any one of claims 1 to 8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108646945B (en) * | 2018-05-10 | 2021-10-22 | 昆山国显光电有限公司 | Touch panel, touch display panel and display device |
| KR102427303B1 (en) | 2018-09-10 | 2022-08-01 | 삼성디스플레이 주식회사 | Display device |
| CN109388288B (en) * | 2018-09-30 | 2021-10-29 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109976584B (en) * | 2019-03-28 | 2022-07-29 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method thereof, and display device and driving method thereof |
| CN110308821B (en) * | 2019-06-28 | 2021-05-18 | 联想(北京)有限公司 | Touch response method and electronic equipment |
| CN111796723B (en) * | 2019-10-11 | 2023-06-02 | 武汉华星光电半导体显示技术有限公司 | Touch sensing device and touch display panel |
| KR20210052623A (en) | 2019-10-29 | 2021-05-11 | 삼성디스플레이 주식회사 | Display device |
| KR20210064498A (en) | 2019-11-25 | 2021-06-03 | 삼성디스플레이 주식회사 | Display device |
| US11829568B2 (en) * | 2020-09-27 | 2023-11-28 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch control structure and display apparatus |
| CN112905043B (en) * | 2021-02-01 | 2022-06-10 | 武汉华星光电半导体显示技术有限公司 | Touch panel and display device |
| KR20230036012A (en) * | 2021-09-06 | 2023-03-14 | 엘지디스플레이 주식회사 | Display device and display panel |
| CN116243823B (en) * | 2023-02-27 | 2024-01-26 | 惠科股份有限公司 | Touch electrode, touch module and touch display panel |
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