CN107491213B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107491213B CN107491213B CN201710752609.8A CN201710752609A CN107491213B CN 107491213 B CN107491213 B CN 107491213B CN 201710752609 A CN201710752609 A CN 201710752609A CN 107491213 B CN107491213 B CN 107491213B
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The application discloses display panel and display device includes: the touch control electrodes are arranged on the first conductor layer and are arranged in an array; the touch signal transmission lines comprise a first line segment and a second line segment; the second line segment of one touch signal transmission line and the first line segment of the adjacent touch signal transmission line extend along the same straight line; the first line segment of each touch signal transmission line is electrically connected with the same touch electrode through a through hole, wherein the number of the through holes for connecting each touch electrode with the touch signal transmission line is the same. According to the scheme of the application, the contact resistance between the touch signal transmission line and the touch electrode electrically connected with the touch signal transmission line can be reduced; the touch signal transmission lines are electrically connected with the touch electrodes through the through holes with the same number, so that the difference of contact resistance between the touch signal transmission lines on the substrate and the touch electrodes electrically connected with the touch signal transmission lines can be reduced, and the touch sensitivity is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of Display technology, the Display technology has been gradually developed from the original Cathode Ray Tube (CRT) Display to the Liquid Crystal Display (LCD) and Organic Light Emitting Display (OLED) which are widely used at present.
In a conventional display panel, in order to make the display panel thinner and lighter, the number of touch electrodes and the number of touch signal lines on the display panel are generally manufactured according to the ratio of the display panel. When more touch electrodes need to be arranged on the display panel, no redundant touch signal lines are used for connecting the touch electrodes to the integrated circuit for providing the touch signals, so that the touch flexibility and the touch precision of the display panel which needs to be additionally provided with the touch electrodes are reduced.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a display panel and a display device, which are intended to solve the technical problems in the prior art.
According to an aspect of the present application, there is provided a display panel including: the touch control electrodes are arranged on the first conductor layer and are arranged in an array; the touch signal transmission lines are arranged on the second conductor layer and comprise a first line segment and a second line segment, wherein the first line segment and the second line segment extend along a first direction, the first direction is sequentially arranged along a second direction and is the row direction of the touch electrodes, the second direction is the column direction of the touch electrodes, and the first direction is intersected with the second direction; the second line segment of one touch signal transmission line and the first line segment of the adjacent touch signal transmission line extend along the same straight line; the first line segment of each touch signal transmission line is electrically connected with the same touch electrode through a through hole, wherein the number of the through holes for connecting each touch electrode with the touch signal transmission line is the same.
According to a second aspect of the present application, there is also provided a display device including the display panel as above.
In this embodiment, the touch signal transmission lines electrically connected to the touch electrodes on the display panel are arranged at two ends of the first line segment and the second line segment, and the first line segment of one touch signal transmission line and the second end of the touch signal transmission line adjacent to the first line segment extend along the same straight line, so that the contact resistance between the touch signal transmission line and the touch electrodes electrically connected to the touch signal transmission line can be reduced; the touch signal transmission lines are electrically connected with the touch electrodes through the through holes with the same number, so that the difference of contact resistance between the touch signal transmission lines on the substrate and the touch electrodes electrically connected with the touch signal transmission lines can be reduced, and the touch sensitivity is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram illustrating a structure of one embodiment of a display panel provided herein;
FIG. 2 is a schematic cross-sectional view of the display panel shown in FIG. 1 provided in the present application;
FIG. 3 is a schematic diagram of a structure of another display panel provided in the present application;
FIG. 4 illustrates a top view of yet another display panel provided by the present application;
fig. 5 is a schematic diagram illustrating a position relationship between a touch transmission line and a display pixel provided in the present application;
FIG. 6 is a schematic diagram illustrating an overall architecture of a display panel provided in the present application;
fig. 7 shows a schematic configuration diagram of one embodiment of a display device of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Please refer to fig. 1, which shows a schematic structural diagram of a display panel provided in the present application.
As shown in fig. 1, a plurality of touch electrodes SX arranged in an array are disposed on the display panel 100. The display panel 100 includes a display area AA and a non-display area disposed around the display area AA, and each touch electrode SX is disposed in the display area. The display panel 100 includes a first conductive layer, and as shown in fig. 2, each of the touch electrodes SX is formed on the first conductive layer. The material forming each touch electrode SX may be ITO (Indium Tin Oxides), IZO (Indium Zinc Oxides), or the like.
The display panel 100 further includes a second conductor layer, and the second conductor layer is provided with a plurality of touch signal transmission lines TE. Each of the touch signal transmission lines TE includes at least two segments, and the display panel 100 shown in fig. 1 schematically shows a case where the touch signal transmission line TE includes two segments, i.e., a first segment TE1 and a second segment TE 2. The present application is not limited thereto and is determined according to the needs of the application scenario. The touch signal transmission line TE is made of a conductive material, such as a conductive oxide material, such as ITO or IZO, or a metal material, an alloy material, or a metal nitride material. Since the conductivity of the pure metal material is better than that of the oxide, nitride, etc., preferably, the material of the touch signal transmission line is a metal material.
In this embodiment, the two segments of the touch signal transmission line TE extend along the first direction D1 and are sequentially disposed along the second direction D2. The first direction D1 is a row direction of the touch electrodes, and the second direction D2 is a column direction of the touch electrodes. Here, the first direction D1 intersects the second direction D2.
As can be seen from fig. 1, the same touch signal transmission line TE is connected to the same touch electrode SX. That is, the first line segment TE1 and the second line segment TE2 of the same touch signal transmission line TE are electrically connected and then connected to the same touch electrode SX in parallel along the D2 direction. That is, two segments of the touch signal transmission line TE are connected in parallel in the area defined by the touch electrode SX. Compared with the case that only one section of touch signal transmission line is electrically connected with the touch electrode SX, the touch signal transmission line TE is arranged into two sections and connected in parallel in the area limited by the same touch electrode SX, so that the contact resistance between the touch signal transmission line TE and the touch electrode SX can be reduced, and the transmission speed of the touch signal is increased.
In this embodiment, the display panel 100 includes a frame area disposed around the display area AA, and the frame area includes an upper frame area and a lower frame area, wherein the upper frame area, the display area AA, and the lower frame area are sequentially disposed along the first direction D1. Generally, the integrated circuit electrically connected to the touch signal transmission lines TE is disposed in the lower frame region, and each touch signal transmission line TE extends from the lower frame region to the upper frame region through the display region AA.
In this embodiment, the first line segment of one touch signal transmission line and the second line segment of the touch signal transmission line adjacent to the first line segment extend along the same straight line.
In a specific application scenario, as shown in fig. 1, the touch signal transmission line TEa includes a first line segment TE1 and a second line segment TE2, and the touch signal transmission line TEb also includes a first line segment TE1 and a second line segment TE2, wherein the touch signal transmission line TEb is located at the left side of the touch signal transmission line TEa and adjacent to the touch signal transmission line TEa. As can be seen from fig. 1, the second line segment of the touch signal transmission line TEa and the first line segment of the touch signal transmission line TEb are located on the same straight line, i.e., extend along the same straight line, and the second line segment of the touch signal transmission line TEb and the first line segment of the touch signal transmission line adjacent thereto extend along the same straight line. The second segment TE2 of the touch signal transmission line TEa and the first segment TE1 of the touch signal transmission line TEb may be formed by etching the same metal line, and they are insulated from each other.
Through the arrangement mode of the touch signal transmission lines as shown in fig. 1, the second line segment of the touch signal transmission line TE and the first line segment of the touch signal transmission line TE adjacent to the second line segment are arranged on the same extension line, so that the uniformity between the touch signal transmission line SE and the touch electrodes SX can be improved by connecting two segments of each touch electrode SX and the touch signal transmission line TE, and the number of metal wires in the display area is reduced.
In some application scenarios, as shown in fig. 2, a schematic cross-sectional structure of the display panel 100 shown in fig. 1 is shown. The display panel 100 may include a substrate 10, a plurality of touch electrodes SX and touch signal transmission lines TE correspondingly connected to the touch electrodes SX are disposed on the substrate 10, an insulating layer 13 is further disposed between the touch electrodes SX and the touch signal transmission lines TE, and a plurality of through holes PLN are disposed on the insulating layer 13. Each touch signal transmission line TE is electrically connected to the touch electrode SX through the through hole PLN. Here, the number of the through holes PLN connecting the touch signal transmission line TE and the touch electrode may be 1, 2, 3, 4, etc., which is not limited herein and is set according to the requirement of the substrate. The substrate 100 as shown in fig. 1 schematically shows a case where the number of through holes is 7. Preferably, the number of the through holes connecting the touch signal transmission line TE and the touch electrode SX is at least 2. By increasing the number of the through holes PLN, it is possible to prevent the touch signal transmission line TE electrically connected to one of the through holes from being disconnected, or to electrically connect the through holes using other through holes when the through holes cannot be conducted due to other external factors (for example, when a process is performed, the through holes are insulated due to an insulator flowing into the through holes).
In the display panel 100, each touch signal transmission line TE is electrically connected to the touch electrode SX through the same number of through holes. For example, each touch signal transmission line TE is electrically connected to the touch electrode SX through 7 through holes. It should be noted that the above 7 through holes are only exemplary in number, and the number of the through holes may be set according to the needs of the application scenario as long as the number of the through holes connecting the touch signal transmission line TE and the touch electrode SX is the same. By electrically connecting each touch signal transmission line TE to the touch electrode SX through the same number of through holes, the difference in contact resistance between each touch signal transmission line TE and each touch electrode electrically connected thereto on the display panel 100 can be reduced, and the touch sensitivity can be improved.
In this embodiment, the touch signal transmission lines electrically connected to the touch electrodes on the display panel are arranged at two ends of the first line segment and the second line segment, and the first line segment of one touch signal transmission line and the second end of the touch signal transmission line adjacent to the first line segment extend along the same straight line, so that the contact resistance between the touch signal transmission line and the touch electrodes electrically connected to the touch signal transmission line can be reduced; the touch signal transmission lines are electrically connected with the touch electrodes through the through holes with the same number, so that the difference of contact resistance between the touch signal transmission lines on the substrate and the touch electrodes electrically connected with the touch signal transmission lines can be reduced, and the touch sensitivity is improved.
Please refer to fig. 3, which shows a schematic structural diagram of another display panel provided in the present application.
In the display panel 300 shown in fig. 3, the display panel 300 includes a plurality of touch electrodes SX, a plurality of touch signal transmission lines TE, wherein each touch signal transmission line TE includes a first line segment TE1 and a second line segment TE 2. Two sections of each touch signal transmission line TE are electrically connected with the touch electrode SX through the through hole.
Unlike the embodiment shown in fig. 1, in the present embodiment, the first segment TE1 and the second segment TE2 of each touch signal transmission line are electrically connected to the touch electrodes through the same number of vias PLN.
For example, in the display panel 300 shown in fig. 3, the first line segment TE1 and the second line segment TE2 in the touch signal transmission line TE are electrically connected to the same touch electrode SX through 5 through holes PLN, respectively. That is, each touch signal transmission line TE is electrically connected to the same touch electrode SX through 10 PLN vias.
Here, for the same touch electrode SX, along the second direction D2, one of the through holes connecting the first line segment TE1 and the touch electrode SX and one of the through holes connecting the second line segment TE2 and the touch electrode SX are located on the same extension line. That is, the through holes connecting the first line TE1 and the touch electrode SX and the through holes connecting the second line TE2 and the touch electrode SX are symmetrically distributed within the range defined by the touch electrode SX, as shown in fig. 3. In this way, by setting the same number of through holes PLN between the first line segment TE1 and the touch electrode SX and between the second line segment TE2 and the touch electrode, and by symmetrically distributing the through holes connecting the first line segment TE1 and the touch electrode SX and the through holes connecting the second line segment TE2 and the touch electrode SX within the range defined by the touch electrode SX, the length of the first line segment TE1 connected to the touch signal line SX and the length of the second line segment TE2 connected to the touch signal line SX can be made to be the same within the range defined by the touch signal line SX, thereby increasing the transmission speed of the touch signal.
Optionally, in the n through holes for electrically connecting the touch electrode SX and the same touch signal transmission line TE, a distance between an i-1 th through hole and an i-th through hole adjacent to each other in the first direction D1 in the first direction D1 is equal to a distance between an i-th through hole and an i +1 th through hole adjacent to each other in the first direction D1; wherein i is more than or equal to 1 and less than or equal to n-1.
For example, in the display panel 300 shown in fig. 3, two through holes adjacent to the through hole PLN2 are a through hole PLN1 and a through hole PLN3, respectively. In the first direction D1, the distance between the via PLN1 and the via PLN2 is equal to the distance between the via PLN2 and the via PLN 3.
In the first direction D1, by setting the through holes PLN connected to the touch electrode SX to have equal intervals, the first line segment TE1 and the second line segment TE2 of the touch signal transmission line may be more uniformly distributed within the range defined by the touch electrode SX.
Please refer to fig. 4, which shows a top view of the display panel provided in the present application.
As shown in fig. 4, the display panel 400 includes an array substrate and a color filter substrate disposed opposite to the array substrate. The array substrate is provided with touch electrodes and touch signal transmission lines electrically connected with the touch electrodes, and each touch signal transmission line comprises a first line segment TE1, a second line segment TE2 and a third line segment TE3 connected with the first line segment TE1 and the second line segment TE 2. The second segment TE2 of each touch signal transmission line and the first segment TE1 of the adjacent touch signal transmission line are formed by etching the same metal wire, and the reference numeral 61 is a disconnected part between the second segment TE2 of one touch signal transmission line and the first segment TE1 of the other touch signal transmission line.
A plurality of black matrixes are arranged in an array on the color film substrate, wherein the BM1 is a black matrix extending along a first direction D1 and sequentially arranged along a second direction D2, and the BM2 is a black matrix extending along a second direction D2 and sequentially arranged along a first direction D1. The black matrixes arranged in an array are crossed to define the sub-pixels PI.
In this embodiment, the orthographic projection of the black matrix on the array substrate covers the first segment TE1 and the second segment TE2 of each touch signal transmission line. As shown in fig. 4, the first segment TE1 and the second segment TE2 of the touch signal transmission line extend along the first direction D1 and are sequentially disposed along the second direction D2, and the black matrix extending along the first direction D1 covers the first segment TE1 and the second segment TE2 of the touch signal transmission line. The first line TE1 and the second line TE2 of the touch signal transmission line are disposed in the shadow of the black matrix, so that the touch signal transmission line is prevented from being developed on the display panel when the image is displayed, and the display effect of the display panel is improved.
A plurality of spacing columns are arranged between the array substrate and the color film substrate and used for supporting the array substrate and the color film substrate and preventing liquid crystal molecules from deforming due to the fact that the distance between the two substrates is too close to extrude a liquid crystal layer between the two substrates. The spacers include a main spacer SP1 and an auxiliary spacer SP 2. The orthographic projections of the spacing columns SP1 and SP2 to the array substrate are not overlapped with the touch signal transmission lines. As shown in fig. 4, the connection line TE3 of the first line segment TE1 and the second line segment TE2 bypasses the middle portion of the spacer SP1 and connects the two line segments from the edge of the spacer SP 1. Thus, the third segment TE3 of the touch signal transmission line is prevented from being arranged below the spacing column SP1 or SP2, which causes the thickness of the display panel to be uneven, thereby improving the uniformity of the thickness of the display panel.
Referring to fig. 5, a schematic diagram of a position relationship between the touch transmission line and the display pixel is shown.
As shown in fig. 5, the display panel 500 is further provided with a plurality of sub-pixels PI arranged in an array. As shown in fig. 5, the sub-pixels PI may be divided into a plurality of sub-pixel groups, each of which includes a red sub-pixel, a blue sub-pixel, and a green sub-pixel. The display panel 500 further includes a plurality of touch signal transmission lines TE, and the touch signal transmission lines TE include a first line segment and a second line segment, wherein the second line segment of one touch signal transmission line and the first line segment of an adjacent touch signal transmission line extend along the same straight line. The touch signal transmission line TE is formed on the first conductive layer, and is located on a different conductive layer from the pixel electrode in each of the sub-pixels. In the first direction D1 as shown in fig. 5, the orthographic projections of the first line segment and the second line segment of the touch signal transmission line TE to the pixel electrode layer forming the pixel electrode in each sub-pixel are located between two columns of sub-pixels arranged in the second direction D2 as shown in fig. 5.
Alternatively, the sub-pixels may include a first color sub-pixel column, a second color sub-pixel column, and a third color sub-pixel column, and the first color sub-pixel column, the second color sub-pixel column, and the third color sub-pixel column are alternately arranged in the second direction. The first color sub-pixel column comprises a plurality of first color sub-pixels with the same color, the second color sub-pixel column comprises a plurality of second color sub-pixels with the same color, and the third color sub-pixel column comprises a plurality of third color sub-pixels with the same color. The first color sub-pixel may be any one of the red, green, or blue sub-pixels, the second color sub-pixel may be any one of the red, green, or blue sub-pixels, the third color sub-pixel may be any one of the red, green, or blue sub-pixels, but the first, second, and third color sub-pixels are sub-pixels of different colors. The first line segment and the second line segment of each touch signal transmission line TE are disposed between the first color sub-pixel and the second color sub-pixel. The first line segment and the second line segment of each touch signal transmission line TE are arranged between the first color sub-pixel and the second color sub-pixel, so that uneven display caused by the distribution of the touch signal transmission lines when the display panel performs picture display due to the fact that the touch signal transmission lines are arranged between the sub-pixels with different colors can be reduced, and the display uniformity of the array substrate is improved.
Please refer to fig. 6, which shows a schematic diagram of an overall structure of the display panel provided in the present application.
As shown in fig. 6, the display panel 600 includes a color filter substrate CF, an array substrate TFT disposed opposite to the color filter substrate, and a liquid crystal layer disposed between the color filter substrate CF and the array substrate TFT. The display panel 600 includes a plurality of touch electrodes SX, and the touch electrodes SX may be disposed on one side of the color film substrate CF or on one side of the array substrate TFT. The display panel 600 further includes a plurality of touch signal transmission lines TE electrically connected to the touch electrodes SX through the through holes, and each touch signal transmission line TE includes a first line segment and a second line segment, where the second line segment of one touch signal transmission line and the first line segment of the adjacent touch signal transmission line extend along the same straight line.
In this embodiment, the touch electrode is a self-capacitance touch electrode. The touch electrode SX may be multiplexed as a common electrode. During touch control, the touch electrode SX is used for receiving a touch drive signal and outputting a touch sensing signal; in general, when the touch electrode is formed on the color filter substrate CF side on the array substrate TFT of the pixel electrode for display, a vertical electric field is formed between the common electrode and the pixel electrode during display to control the rotation of the liquid crystal in the display panel; when the touch electrode is formed on the array substrate FTF side, a horizontal electric field is formed between the common electrode and the pixel electrode to control the rotation of the liquid crystal in the display panel during the display period.
The display panel 600 further includes an integrated circuit IC, during the touch period, the integrated circuit IC provides a touch driving signal to the touch electrode through the touch signal transmission line, and since the touch electrode is a self-capacitance touch electrode, a capacitance is formed between the touch electrode and the common ground, when an object or a finger touches the display panel, a capacitance variation exists between the touch electrode and the common ground, and the variation is transmitted to the integrated circuit IC through the touch signal transmission line TE to determine the touch position.
The array substrate further includes data signal lines, scan signal lines, thin film transistors, and the like, and the integrated circuit IC is further configured to provide data voltage signals to the data signal lines during a display period. Such well-known structures will not be further described in order not to obscure the focus of the present application.
In this embodiment, the touch signal transmission lines electrically connected to the touch electrodes on the display panel are arranged at two ends of the first line segment and the second line segment, and the first line segment of one touch signal transmission line and the second end of the touch signal transmission line adjacent to the first line segment extend along the same straight line, so that the contact resistance between the touch signal transmission line and the touch electrodes electrically connected to the touch signal transmission line can be reduced; the touch signal transmission lines are electrically connected with the touch electrodes through the through holes with the same number, so that the difference of contact resistance between the touch signal transmission lines on the substrate and the touch electrodes electrically connected with the touch signal transmission lines can be reduced, and the touch sensitivity is improved.
The present application also discloses a display device, as shown in fig. 7. The display device may include the display panel as above. It will be appreciated by those skilled in the art that the display device may comprise some other known structure in addition to the display panel as described above. Such well-known structures will not be further described in order not to obscure the focus of the present application.
The display device of the present application may be any device including the above display panel, including but not limited to a cellular phone 700, a tablet computer, a display of a computer, a display applied to a smart wearable device, a display applied to a vehicle such as an automobile, and the like, as shown in fig. 7. As long as the display device includes the structure of the display panel disclosed in the present application, it is considered to fall within the scope of protection of the present application.
The application provides a display panel and display device, the minimum distance between each point of display panel outward flange and the electrostatic protection wiring is even to display panel's reliability has been improved.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A display panel, comprising:
the touch control electrodes are arranged on the first conductor layer and are arranged in an array;
the touch signal transmission lines are arranged on the second conductor layer and comprise a first line segment and a second line segment, wherein the first line segment and the second line segment extend along a first direction and are sequentially arranged along a second direction, and the first direction is intersected with the second direction;
the second line segment of one touch signal transmission line and the first line segment of the touch signal transmission line adjacent to the second line segment extend along the same straight line;
the first line segment and the second line segment of each touch signal transmission line are electrically connected with the same touch electrode through holes, wherein the number of the through holes for connecting the touch electrodes with the touch signal transmission lines is the same.
2. The display panel according to claim 1, wherein the first line segment and the second line segment of each of the touch signal transmission lines are electrically connected to the touch electrodes through the same number of through holes.
3. The display panel according to claim 1, wherein, of the n through holes for electrically connecting the touch electrode to the same touch signal transmission line, a pitch of an i-1 th through hole and an i-th through hole adjacent to each other in a first direction in the first direction is equal to a pitch of an i-th through hole and an i +1 th through hole adjacent to each other in the first direction;
wherein i is more than or equal to 1 and less than or equal to n-1.
4. The display panel according to claim 1, wherein the display panel comprises an array substrate and a color film substrate arranged opposite to the array substrate, a plurality of spacers are arranged between the array substrate and the color film substrate, and orthographic projections of the spacers on the array substrate are not overlapped with the touch signal transmission lines.
5. The display panel according to claim 4, wherein the color filter substrate is further provided with a black matrix, the touch electrodes and the touch signal transmission lines are disposed on the array substrate, and an orthographic projection of the black matrix onto the array substrate covers each touch signal transmission line.
6. The display panel of claim 1, further comprising a plurality of sub-pixels arranged in an array, wherein an orthogonal projection of the touch signal transmission line to the pixel electrode layer is located between two columns of sub-pixels.
7. The display panel according to claim 6, wherein the plurality of sub-pixels comprises a first color sub-pixel column, a second color sub-pixel column, and a third color sub-pixel column alternately arranged along the second direction, wherein:
each touch signal transmission line is arranged between the first color sub-pixel row and the second color sub-pixel row.
8. The display panel according to claim 1, wherein the touch electrode is multiplexed as a common electrode.
9. The display panel of claim 1, wherein the touch electrode is a self-capacitance touch electrode.
10. A display device characterized in that it comprises a display panel as claimed in one of claims 1 to 9.
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| CN201710752609.8A CN107491213B (en) | 2017-08-28 | 2017-08-28 | Display panel and display device |
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| CN201710752609.8A CN107491213B (en) | 2017-08-28 | 2017-08-28 | Display panel and display device |
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| CN107491213B true CN107491213B (en) | 2020-05-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107807756B (en) * | 2017-11-15 | 2021-01-29 | 上海天马微电子有限公司 | Array substrate, touch display panel and touch display device |
| CN108037608A (en) * | 2018-01-02 | 2018-05-15 | 京东方科技集团股份有限公司 | Array base palte, touch-control display panel and display device |
| CN108228004B (en) * | 2018-03-23 | 2022-10-04 | 上海中航光电子有限公司 | Display panel and display device |
| JP2019184864A (en) * | 2018-04-12 | 2019-10-24 | シャープ株式会社 | Display |
| CN109725770B (en) * | 2018-12-27 | 2022-04-29 | 上海中航光电子有限公司 | Touch panel and touch display device |
| TWI750448B (en) * | 2019-01-28 | 2021-12-21 | 友達光電股份有限公司 | Touch display panel |
| CN110262689B (en) * | 2019-06-10 | 2021-01-01 | 武汉华星光电技术有限公司 | Embedded touch display panel and array substrate thereof |
| CN111665999B (en) * | 2020-07-29 | 2024-08-06 | 京东方科技集团股份有限公司 | Display device and self-contained touch panel thereof |
| CN112764571B (en) * | 2021-01-05 | 2023-12-29 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113485586B (en) * | 2021-06-17 | 2024-01-30 | 武汉华星光电半导体显示技术有限公司 | Touch display panel |
| KR20230006130A (en) * | 2021-07-02 | 2023-01-10 | 엘지디스플레이 주식회사 | Touch display device and display panel |
| CN114020170A (en) * | 2021-11-04 | 2022-02-08 | 福建华佳彩有限公司 | Layout structure of touch display screen |
| CN114385044B (en) * | 2022-01-13 | 2023-07-25 | 武汉华星光电半导体显示技术有限公司 | Touch display panel |
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| CN104808858B (en) * | 2015-05-08 | 2018-07-10 | 厦门天马微电子有限公司 | A kind of touch panel and touch control display apparatus |
| CN104951143B (en) * | 2015-07-27 | 2020-05-08 | 京东方科技集团股份有限公司 | Array substrate, touch panel and display device |
| CN105224131B (en) * | 2015-10-08 | 2018-07-13 | 上海中航光电子有限公司 | Array substrate, touch screen and touch control display apparatus |
| US10025410B2 (en) * | 2015-12-28 | 2018-07-17 | Lg Display Co., Ltd. | Display device with touch sensor |
| CN106249960B (en) * | 2016-08-18 | 2020-06-19 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN106201114B (en) * | 2016-08-26 | 2019-03-12 | 京东方科技集团股份有限公司 | Touch-control structure, array substrate and display device |
| CN106648247B (en) * | 2016-12-28 | 2019-09-24 | 厦门天马微电子有限公司 | Touch-control display panel and display device |
| CN106896961B (en) * | 2017-03-01 | 2020-01-10 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
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