CN107491211B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN107491211B CN107491211B CN201710751035.2A CN201710751035A CN107491211B CN 107491211 B CN107491211 B CN 107491211B CN 201710751035 A CN201710751035 A CN 201710751035A CN 107491211 B CN107491211 B CN 107491211B
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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
- 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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- 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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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Abstract
The invention discloses a touch display panel and a touch display device, which belong to the technical field of display and comprise: a substrate base plate; the touch control device comprises a black matrix, a touch control functional layer and a thin film transistor array layer which are sequentially arranged on a substrate; the plurality of gate lines and the plurality of data lines are crossed and insulated to define a sub-pixel area; the sub-pixel region comprises a light-transmitting region which is not overlapped with the black matrix in a direction vertical to the substrate base plate; the touch control function layer comprises touch control electrodes, and the touch control electrodes are in a grid shape; in the direction vertical to the substrate, the touch electrode is not overlapped with the light-transmitting area, and the black matrix covers the touch electrode; the touch display panel comprises a light emergent side and a light incident side which are oppositely arranged; one side of the substrate base plate departing from the black matrix is a light emergent side or a light incident side. The manufacturing process of the touch display panel is simplified, the alignment deviation is small, and the alignment precision is high. One side of the substrate base plate departing from the black matrix can be set to be a light emergent side and can also be set to be a light incident side.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a touch display panel and a touch display device.
Background
With the development of display technology, touch display devices are easy to operate, interesting, popular with consumers, and display devices such as mobile phones and computers with touch functions are becoming popular.
In a touch display device provided in the prior art, after a display panel is manufactured, a touch substrate is attached to the display panel, and the touch substrate is used for implementing a touch function. Referring to fig. 1, fig. 1 is a schematic structural diagram of a touch substrate provided in the prior art. The touch substrate comprises a substrate 01, touch electrodes 02 arranged on the substrate 01 and touch lines 03, wherein the touch lines 03 are electrically connected with the corresponding touch electrodes 02 and transmit electric signals for the touch electrodes 02. Because the display panel and the touch substrate are manufactured separately and then attached to each other, the requirement on the matching precision of the display panel and the touch substrate is high. The display panel is provided with a black matrix, and the black matrix needs to cover the touch lines 03 in the light emitting direction of the touch display device. If the misalignment between the black matrix and the touch line 03 is large, the display effect is affected, and the yield of the touch display device is reduced. In addition, the touch electrode 02 is block-shaped, and covers the display area of the display panel, which reduces the light transmittance of the display panel.
Disclosure of Invention
In view of the foregoing, the present invention provides a touch display panel and a touch display device.
The invention provides a touch display panel, comprising: a substrate base plate; the touch control device comprises a black matrix, a touch control functional layer and a thin film transistor array layer which are sequentially arranged on a substrate; the thin film transistor array layer comprises a plurality of gate lines extending along a first direction and a plurality of data lines extending along a second direction, and the gate lines and the data lines are crossed and insulated to define a sub-pixel area; the sub-pixel region comprises a light-transmitting region which is not overlapped with the black matrix in a direction vertical to the substrate base plate; the touch control function layer comprises touch control electrodes, and the touch control electrodes are in a grid shape; in the direction vertical to the substrate, the touch electrode is not overlapped with the light-transmitting area, and the black matrix covers the touch electrode; the touch display panel comprises a light emergent side and a light incident side which are oppositely arranged; one side of the substrate base plate departing from the black matrix is a light emergent side or a light incident side.
In some optional embodiments, the touch electrode includes a touch transmitting electrode and a touch receiving electrode.
In some optional embodiments, the touch transmitting electrode and the touch receiving electrode are disposed in the same layer.
In some optional embodiments, the touch emitting electrode is in a strip shape and extends along the second direction; the touch receiving electrodes are in a block shape, and the touch receiving electrodes are arranged along a second direction; the touch receiving electrodes positioned in the same row in the second direction are touch receiving electrode groups; the touch transmitting electrode groups and the touch receiving electrode groups are alternately arranged along the first direction.
In some optional embodiments, the touch transmitting electrode and the touch receiving electrode are arranged in different layers.
In some optional embodiments, the touch transmitting electrode is block-shaped, and the touch receiving electrode is block-shaped; the touch transmitting electrodes and the touch receiving electrodes are alternately arranged along a first direction, and the touch transmitting electrodes and the touch receiving electrodes are alternately arranged along a second direction.
In some optional embodiments, the touch display panel further includes a data line repair line; the data line repairing line is arranged between two adjacent gate lines, extends along the second direction, is overlapped with the data line in the direction perpendicular to the substrate base plate, and is not overlapped with the light-transmitting area; the data line repairing line and the touch electrode are arranged in the same layer and in an insulating mode.
In some optional embodiments, the touch functional layer includes a first conductive layer and a second conductive layer, and a first insulating layer interposed between the first conductive layer and the second conductive layer; the first conductive layer comprises a plurality of electromagnetic induction coils; the second conductive layer includes a touch electrode.
In some optional embodiments, the touch display panel further includes a color resistance layer, and the color resistance layer includes color resistances of at least three different colors.
In some alternative embodiments, the color-resist layer is disposed on the base substrate; the color resistance layer is arranged between the black matrix and the touch control functional layer, or the color resistance layer is arranged on one side of the thin film transistor array layer, which is deviated from the substrate base plate.
In some optional embodiments, the touch display panel includes an array substrate and a color film substrate; the array substrate comprises a substrate, a black matrix, a touch function layer and a thin film transistor array layer; the color film substrate comprises a color resistance layer.
In some alternative embodiments, the material of the touch electrode comprises a metal.
The invention also provides a touch display device which comprises the touch display panel provided by the invention.
In some optional embodiments, the touch display panel includes an array substrate and a color film substrate, where the array substrate includes a substrate, a black matrix, a touch function layer, and a thin film transistor array layer; the touch display device also comprises a backlight module; the backlight module is arranged adjacent to the array substrate, and one side of the substrate, which is deviated from the black matrix, is a light incident side; or the backlight module is arranged adjacent to the color film substrate, and one side of the substrate departing from the black matrix is a light emergent side.
Compared with the prior art, the touch display panel and the touch display device provided by the invention at least realize the following beneficial effects:
in the touch display panel and the touch display device provided by the invention, the touch functional layer is integrated in the display panel, and a touch substrate is not required to be additionally provided, so that the manufacturing process of the touch display panel is simplified. And the touch functional layer and the black matrix are arranged on the same substrate base plate, so that the alignment deviation is small and the alignment precision is high. The touch control function layer comprises latticed touch control electrodes, and the touch control electrodes are not overlapped with the light transmission areas of the sub-pixel areas in the direction perpendicular to the substrate base plate, so that the light transmittance of the display panel is not influenced. In addition, the touch display panel provided by the invention comprises a light emergent side and a light incident side which are arranged oppositely, and the black matrix, the touch function layer and the thin film transistor array layer are all arranged on one side of the substrate base plate, so that the alignment precision is high, and one side of the substrate base plate, which is deviated from the black matrix, can be arranged as the light emergent side or the light incident side.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a touch substrate provided in the prior art;
fig. 2 is a schematic cross-sectional structure diagram of a touch display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a planar structure of the touch display panel provided in the embodiment of FIG. 2;
FIG. 4 is a schematic view of another planar structure of the touch display panel provided in the example of FIG. 2;
fig. 5 is a schematic plan view illustrating another touch display panel according to an embodiment of the invention;
FIG. 6 is a partially enlarged schematic view of a region A in FIG. 5;
fig. 7 is a schematic plan view illustrating a touch display panel according to another embodiment of the present invention;
FIG. 8 is a partial enlarged structural view of a region B in FIG. 7;
fig. 9 is a schematic partial plan view of another touch display panel according to an embodiment of the present invention;
FIG. 10 is a partially enlarged schematic view of a region C in FIG. 9;
fig. 11 is a schematic cross-sectional view illustrating a touch display panel according to another embodiment of the present invention;
FIG. 12 is a schematic plan view of the first conductive layer of FIG. 11;
fig. 13 is a schematic cross-sectional view illustrating another touch display panel according to an embodiment of the invention;
fig. 14 is a schematic cross-sectional view illustrating another touch display panel according to an embodiment of the invention;
fig. 15 is a schematic cross-sectional view illustrating a touch display panel according to another embodiment of the present invention;
fig. 16 is a schematic plan view illustrating a touch display device according to an embodiment of the invention;
fig. 17 is a schematic cross-sectional view of a touch display device according to an embodiment of the invention;
fig. 18 is a schematic cross-sectional view of a touch display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Please refer to fig. 2, fig. 3 and fig. 4 in combination. Fig. 2 is a schematic cross-sectional structure diagram of a touch display panel according to an embodiment of the invention, fig. 3 is a schematic plan structure diagram of the touch display panel provided in the embodiment of fig. 2, and fig. 4 is a schematic plan structure diagram of the touch display panel provided in the embodiment of fig. 2. An embodiment of the present invention provides a touch display panel, including: a base substrate 10; the black matrix 20, the touch function layer 30 and the thin film transistor array layer 40 are sequentially arranged on the substrate base plate 10; the thin film transistor array layer 40 includes a plurality of gate lines 41 extending along a first direction and a plurality of data lines 42 extending along a second direction, and the plurality of gate lines 41 and the plurality of data lines 42 are crossed and insulated to define a sub-pixel region 401; the sub-pixel region 401 includes a light transmitting region 4011, and the light transmitting region 4011 does not overlap the black matrix 20 in a direction perpendicular to the base substrate 10; the touch function layer 30 includes a touch electrode 31, and the touch electrode 31 is in a grid shape; in the direction perpendicular to the substrate base plate 10, the touch electrode 31 is not overlapped with the light-transmitting area 4011, and the black matrix 20 covers the touch electrode 31; the touch display panel comprises a light emergent side and a light incident side which are oppositely arranged; the side of the substrate 10 away from the black matrix 20 is a light-emitting side or a light-entering side.
It should be noted that, for clearly illustrating the technical solution of the present embodiment, fig. 3 only illustrates a partial structure of the touch display panel, and specifically, fig. 3 illustrates the substrate 10, the black matrix 20, the plurality of gate lines 41 and the plurality of data lines 42. Fig. 4 illustrates only a partial structure of the touch display panel, and in particular, fig. 4 illustrates the substrate base 10, the black matrix 20, and the touch electrode 31. In fig. 3 and 4, the black matrix 20 is not provided with a filling pattern, and is only indicated by a line frame, in order to clearly illustrate the relative positional relationship between the structures. Also, fig. 3 and 4 are schematic views as viewed in a direction perpendicular to the base substrate 10.
In the touch display panel provided in the embodiment of the present invention, the substrate 10 may be made of a hard material, for example, a glass material, or a flexible material, for example, a resin material, which is not particularly limited in the embodiment of the present invention. The substrate 10 is used for carrying the black matrix 20, the touch function layer 30 and the thin film transistor array layer 40.
The Black Matrix (BM) is used to block light reflection in the touch display panel and prevent light leakage from the touch display panel, and the Black Matrix can increase the contrast of colors of the display panel.
The Thin Film Transistor array layer 40 includes Thin Film Transistors (TFTs) (not shown) arranged in an array, and the TFTs include a gate electrode, a source electrode and a drain electrode. The thin film transistor is electrically connected to the gate line 41, the source electrode of the thin film transistor is electrically connected to the data line 42, and the drain electrode of the thin film transistor is electrically connected to a pixel electrode (not shown). The thin film transistor array layer 40 further includes a plurality of gate lines 41 and a plurality of data lines 42, and the plurality of gate lines 41 and the plurality of data lines 42 cross and are insulated to define sub-pixel regions 401. The sub-pixel region 401 is partially covered by the black matrix 20, and a region of the sub-pixel region 401 not covered by the black matrix 20 is a light transmitting region 4011. In other words, the light transmitting region 4011 does not overlap the black matrix 20 in a direction perpendicular to the base substrate 10.
The touch functional layer 30 includes a grid-shaped touch electrode 31, and the shape, size, and number of the touch electrode 31 are not particularly limited in this embodiment. The touch electrode 31 is made of a conductive material and can receive an electrical signal. The operation mode of the touch electrode 31 may be self-capacitance or mutual capacitance, which is not limited in this embodiment. In the direction perpendicular to the substrate 10, the black matrix 20 covers the touch electrode 31, and since the black matrix 20 and the touch electrode 31 are disposed on the same substrate 10, the alignment deviation is small and the alignment accuracy is high. The touch electrode 31 is not overlapped with the light-transmitting area 4011, and the light transmittance of the display panel is not affected.
The touch display panel provided by the embodiment of the invention comprises a light emergent side and a light incident side which are oppositely arranged. The display panel provided by the embodiment of the invention does not emit light and needs an external light source. One side of the light source entering the touch display panel is a light incident side; the side of the touch display panel through which light is emitted is the light emitting side, and the light emitting side is also the side of the touch display panel observed by a user. Because the black matrix, the touch function layer and the thin film transistor array layer are all arranged on one side of the substrate base plate, the alignment precision is high, and one side of the substrate base plate 10 departing from the black matrix 20 can be arranged as a light emergent side or a light incident side.
In the touch display panel provided by the embodiment of the invention, the touch functional layer is integrated in the display panel, and a touch substrate is not required to be additionally provided, so that the manufacturing process of the touch display panel is simplified. And the touch functional layer and the black matrix are arranged on the same substrate base plate, so that the alignment deviation is small and the alignment precision is high. The touch control function layer comprises latticed touch control electrodes, and the touch control electrodes are not overlapped with the light transmission areas of the sub-pixel areas in the direction perpendicular to the substrate base plate, so that the light transmittance of the display panel is not influenced. In addition, the touch display panel provided by the invention comprises a light emergent side and a light incident side which are arranged oppositely, and the black matrix, the touch function layer and the thin film transistor array layer are all arranged on one side of the substrate base plate, so that the alignment precision is high, and one side of the substrate base plate, which is deviated from the black matrix, can be arranged as the light emergent side or the light incident side.
In some alternative embodiments, the material of the touch electrode includes a metal, such as molybdenum, aluminum, titanium, or an alloy containing molybdenum, aluminum, titanium. In the prior art, the process for manufacturing the signal lines such as the gate lines, the data lines and the like made of metal materials in the touch display panel is very mature, the touch electrodes made of metal materials can be manufactured by the existing mature process without researching and developing an additional manufacturing process, the manufacturing method is simple, and the yield is high.
Optionally, in the touch display panel provided in the embodiment of the present invention, the working mode of the touch electrode 31 is a mutual capacitance type, and the touch electrode includes a touch transmitting electrode and a touch receiving electrode. After the touch transmitting electrode and the touch receiving electrode respectively receive the electric signals, a basic capacitor is formed between the touch transmitting electrode and the touch receiving electrode. When the touch display panel is subjected to touch operation, a touch object (such as a finger) affects the value of the basic capacitance, the change of the basic capacitance causes the change of the charge amount of the touch electrode, the electric signal output by the touch receiving electrode is analyzed and calculated, the position of the touch electrode subjected to the touch operation can be determined, so that the position information of the touch operation on the display panel is determined, and the display panel displays a corresponding display picture according to the touch operation.
In the touch display panel provided by the embodiment of the invention, the touch transmitting electrode and the touch receiving electrode may be disposed on the same layer, or may be disposed on different layers. In the following, the present invention provides two embodiments, which respectively describe a technical scheme of arranging the touch transmitting electrodes and the touch receiving electrodes in the same layer and a technical scheme of arranging the touch transmitting electrodes and the touch receiving electrodes in different layers.
In some optional embodiments, please refer to fig. 5 and fig. 6, fig. 5 is a schematic plan structure diagram of another touch display panel provided in the embodiments of the present invention, and fig. 6 is a schematic partial enlarged structure diagram of a region a in fig. 5. Fig. 5 and fig. 6 illustrate a technical scheme of arranging the touch transmitting electrode 311 and the touch receiving electrode 312 in the same layer, which can be implemented by arranging a conductive layer in the touch functional layer. Optionally, the touch transmitting electrode 311 is a strip and extends along the second direction; the touch receiving electrodes 312 are block-shaped, and the touch receiving electrodes 312 are arranged along a second direction; the touch receiving electrodes 312 in the same column in the second direction are touch receiving electrode groups 3120; the touch transmitting electrodes 311 and the touch receiving electrode groups 3120 are alternately arranged along a first direction.
In the touch display panel shown in fig. 5 and 6, the touch transmitting electrode 311 and each touch receiving electrode 312 in the touch receiving electrode group 3120 adjacent thereto form a base capacitance. When a touch operation occurs on the touch display panel, a touch object (e.g., a finger) affects the value of the basic capacitance, and the electric signal output by the touch receiving electrode 312 is analyzed to determine the position of the touch receiving electrode 312 where the touch operation occurs, so as to determine the position information of the touch operation on the display panel, and the display panel displays a corresponding display picture according to the touch operation.
It should be noted that, in order to clearly illustrate the technical solution of the present embodiment, fig. 5 only illustrates the relative position relationship between the substrate 10 and the touch electrode. There are various specific implementation manners of disposing the touch transmitting electrode and the touch receiving electrode on the same layer, and fig. 5 and fig. 6 only illustrate one specific manner of disposing the touch transmitting electrode and the touch receiving electrode, and should not be construed as a limitation to the present invention.
In some optional embodiments, please refer to fig. 7 and 8, fig. 7 is a schematic plan structure view of another touch display panel provided in an embodiment of the present invention, and fig. 8 is a schematic partial enlarged structure view of a region B in fig. 7. Fig. 7 and fig. 8 illustrate a technical scheme of arranging the touch transmitting electrode 311 and the touch receiving electrode 312 in different layers, which can be implemented by arranging two conductive layers in the touch functional layer. In some alternative embodiments, please continue to refer to fig. 7 and 8, the touch transmitting electrode 311 is a block, and the touch receiving electrode 312 is a block; the touch transmitting electrodes 311 and the touch receiving electrodes 312 are alternately arranged along a first direction, and the touch transmitting electrodes 311 and the touch receiving electrodes 312 are alternately arranged along a second direction. The touch transmitting electrodes 311 in the same row are electrically connected, and the touch receiving electrodes 312 in the same column are electrically connected. Since the touch transmitting electrode 311 and the touch receiving electrode 312 are disposed on different film layers, the touch transmitting electrode 311 and the touch receiving electrode 312 are not electrically connected at the region B1 where they overlap. In other alternative implementations, the touch transmitting electrodes 311 and the touch receiving electrodes 312 may be electrically connected in such a way that the touch receiving electrodes 312 in the same row are electrically connected and the touch transmitting electrodes 311 in the same column are electrically connected. With continued reference to fig. 7 and fig. 8, after the touch transmitting electrode 311 and the touch receiving electrode 312 respectively receive the electrical signals, a basic capacitance is formed therebetween. When a touch operation occurs on the touch display panel, it can be determined by calculation and analysis which row of touch receiving electrodes 312 the touch operation occurs, and which column of touch transmitting electrodes 311 the touch operation occurs, and the intersection of the row and the column is the position information of the touch operation. The display panel displays a corresponding display picture according to the touch operation.
It should be noted that, in order to clearly illustrate the technical solution of the present embodiment, fig. 7 only illustrates the relative position relationship between the substrate 10 and the touch electrode. In fig. 8, the touch receiving electrode 312 is illustrated by a dotted line in order to distinguish the touch transmitting electrode 311 from the touch receiving electrode 312. There are various specific implementation manners of the different-layer arrangement of the touch transmitting electrode and the touch receiving electrode, and fig. 7 and fig. 8 only illustrate one specific arrangement manner of the touch transmitting electrode and the touch receiving electrode, and should not be construed as a limitation to the present invention.
In the touch display panel provided in the embodiment of the present invention, the substrate 10 is provided with the touch functional layer 30, and the touch functional layer 30 includes at least one or two conductive layers, so that the conductive layers in the touch functional layer 30 can be reused, and structures such as data line repair lines, electromagnetic induction coils, and the like can be provided, so as to integrate more functions with the touch display panel. In the following, the present invention is exemplarily described herein with reference to the embodiment of the conductive layer in the multi-touch functional layer 30. Please refer to fig. 9 and 10, and fig. 11 and 12, respectively.
In some optional embodiments, please refer to fig. 9 and 10, fig. 9 is a schematic partial plan structure view of another touch display panel provided in an embodiment of the present invention, and fig. 10 is a schematic partial enlarged structure view of a region C in fig. 9. Fig. 9 and 10 are both marked with the same reference numerals as fig. 3 and 4. On the basis of the touch display panel provided by any embodiment of the present invention, the touch display panel further includes a data line repair line 421; the data line repair line 421 is disposed between two adjacent gate lines 41, the data line repair line 421 extends along a second direction, the data line repair line 421 overlaps the data line 42 in a direction perpendicular to the substrate 10, and the data line repair line 421 does not overlap the light transmitting area 4011; the data line repair line 421 and the touch electrode 31 are disposed in the same layer and are insulated. As is known, in the process of manufacturing the touch display panel, the data lines 42 are broken, and the broken data lines 42 may cause poor display of the touch display panel, which affects the yield. Therefore, the data line repair line 421 is disposed in the touch display panel provided in the embodiment of the invention. For example, when the data line 42 is broken at the area C1, the data line repair line 421 corresponding to the area C1 is melted with the broken data line 42 by using a laser, so that the broken data line 42 is reconnected by the data line repair line 421, and a path is formed again, so that an electrical signal can be transmitted, thereby improving the yield of the touch display panel.
In the touch display panel shown in fig. 9 and 10, the data line repair line 421 and the touch electrode 31 are disposed in the same layer and insulated from each other, wherein the touch electrode 31 is in a grid shape, and the grid density may be different in the same touch electrode 31. For example, in fig. 9, in the same touch electrode 31, there is an area C, wherein the grid density of the touch electrode 31 is sparse, the data line repair line 421 is formed by multiplexing the conductive layer where the touch electrode 31 is located, and the data line repair line 421 is insulated from the touch electrode 31. In the touch display panel provided by this embodiment, the data line repair line 421 is disposed on the conductive layer where the multiplexing touch electrode 31 is located, so that the yield of the touch display panel can be improved.
In some optional embodiments, the touch display panel provided in the embodiments of the present invention may further integrate an electromagnetic induction function. Referring to fig. 11 and 12, fig. 11 is a schematic cross-sectional structure view of another touch display panel according to an embodiment of the invention, and fig. 12 is a schematic plan structure view of the first conductive layer in fig. 11. The touch function layer 30 includes a first conductive layer 301 and a second conductive layer 302, and a first insulating layer 303 interposed between the first conductive layer 301 and the second conductive layer 302; the first conductive layer 301 includes a plurality of electromagnetic induction coils 3011; the second conductive layer 302 includes a touch electrode. The specific arrangement of the touch electrode in the second conductive layer 302 is not limited in this embodiment. Optionally, the specific arrangement manner of the touch electrode in the second conductive layer 302 may refer to the technical solutions provided in fig. 5 and fig. 6 of the present invention. In the touch display panel provided in this embodiment, the plurality of electromagnetic induction coils 3011 are disposed in the first conductive layer 301, so that the touch display panel integrates an electromagnetic induction function, for example, an electromagnetic induction pen can be used to perform a touch operation on the touch display panel, and the electromagnetic induction touch display panel has a simple structure, and is beneficial to inputting characters. The touch display panel provided by the embodiment can be used for handwriting character input by using an electromagnetic induction pen, and can also be used for graphical interface operation by using the touch electrode.
In some optional embodiments, the touch display panel provided in any embodiment of the present invention further includes a color resistance layer, where the color resistance layer includes color resistances of at least three different colors. The Color Filter (CF for short) can enable the touch display panel to display Color images. The color resists of the at least three different colors may include a red resist, a green resist, and a blue resist. Or the color resists of at least three different colors include a red color resist, a green color resist, a blue color resist and a white color resist, which is not particularly limited in this embodiment. The specific position of the color-resist layer may be set in various ways, and the embodiment of the present invention exemplarily describes the specific position of the color-resist layer.
In some alternative embodiments, the color-resist layer is disposed on the base substrate. Specifically, referring to fig. 13, the color resist layer 50 is disposed between the black matrix 20 and the touch functional layer 30. Alternatively, referring to fig. 14, the color resist layer 50 is disposed on a side of the thin film transistor array layer 40 away from the substrate base plate 10. Optionally, in the touch display panel provided in fig. 14, a pixel electrode 60 and a common electrode 61 are further disposed between the thin film transistor array layer 40 and the color resistance layer 50. In the touch display panel provided in this embodiment, the color resist layer 50 is disposed on the substrate 10, so that the alignment precision between the color resist layer 50 and the black matrix 20, the thin film transistor array layer 40, and other film layers can be further improved, and the quality of the touch display panel can be improved.
In some optional embodiments, referring to fig. 15, the touch display panel includes an array substrate 100 and a color filter substrate 200; the array substrate 100 includes a substrate 10, a black matrix 20, a touch function layer 30, and a thin film transistor array layer 40; the color filter substrate 200 includes a color resist layer 50. The touch display panel further includes a liquid crystal layer 300. In the touch display panel provided in this embodiment, the color resist layer 50 may be disposed on the color film substrate 200.
The invention further provides a touch display device comprising the touch display panel provided by any one of the above embodiments of the invention. Referring to fig. 16, fig. 16 is a schematic plan view illustrating a touch display device according to an embodiment of the invention. The touch display device 1000 provided in fig. 16 includes the touch display panel 100A provided in any of the above embodiments of the present invention. The embodiment of fig. 16 only takes a mobile phone as an example to describe the touch display device 1000, and it should be understood that the touch display device provided in the embodiment of the present invention may be other touch display devices with a touch display function, such as a computer, a television, a vehicle-mounted display device, and the present invention is not limited thereto. The touch display device provided in the embodiment of the present invention has the beneficial effects of the touch display panel provided in the embodiment of the present invention, and specific descriptions on the touch display panel in the above embodiments may be specifically referred to, and this embodiment is not described herein again.
In some optional embodiments, please refer to fig. 17, and fig. 17 is a schematic cross-sectional view of a touch display device according to an embodiment of the present invention. The touch display panel comprises an array substrate 100 and a color film substrate 200, wherein the array substrate 100 comprises a substrate 10, a black matrix 20, a touch function layer 30 and a thin film transistor array layer 40; the touch display device further comprises a backlight module 400; the backlight module 400 is disposed adjacent to the array substrate 100, and a side of the substrate 10 away from the black matrix 20 is a light incident side. Alternatively, referring to fig. 18, the backlight module 400 is disposed adjacent to the color filter substrate 200, and a side of the substrate 10 away from the black matrix 20 is a light-emitting side. In the touch display device shown in fig. 17 and 18, the backlight module 400 is used for providing a light source for the touch display panel. In the touch display panel provided by the invention, the black matrix 20, the touch functional layer 30 and the thin film transistor array layer 40 are all arranged on one side of the substrate 10, and the alignment precision is high, so that the backlight module 400 can be arranged adjacent to the array substrate 100 or adjacent to the color film substrate 200.
As can be seen from the foregoing embodiments, the touch display panel and the touch display device provided in the present invention at least achieve the following beneficial effects:
in the touch display panel and the touch display device provided by the invention, the touch functional layer is integrated in the display panel, and a touch substrate is not required to be additionally provided, so that the manufacturing process of the touch display panel is simplified. And the touch functional layer and the black matrix are arranged on the same substrate base plate, so that the alignment deviation is small and the alignment precision is high. The touch control function layer comprises latticed touch control electrodes, and the touch control electrodes are not overlapped with the light transmission areas of the sub-pixel areas in the direction perpendicular to the substrate base plate, so that the light transmittance of the display panel is not influenced. In addition, the touch display panel provided by the invention comprises a light emergent side and a light incident side which are arranged oppositely, and the black matrix, the touch function layer and the thin film transistor array layer are all arranged on one side of the substrate base plate, so that the alignment precision is high, and one side of the substrate base plate, which is deviated from the black matrix, can be arranged as the light emergent side or the light incident side.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A touch display panel, comprising:
a substrate base plate;
the black matrix, the touch control functional layer and the thin film transistor array layer are sequentially arranged on the substrate; wherein the content of the first and second substances,
the thin film transistor array layer comprises a plurality of gate lines extending along a first direction and a plurality of data lines extending along a second direction, and the gate lines and the data lines are crossed and insulated to define sub-pixel areas; the sub-pixel region comprises a light-transmitting region which is not overlapped with the black matrix in a direction perpendicular to the substrate base plate;
the touch function layer comprises touch electrodes, and the touch electrodes are in a grid shape; in the direction perpendicular to the substrate base plate, the touch electrode is not overlapped with the light-transmitting area, and the black matrix covers the touch electrode;
the touch display panel comprises a light emergent side and a light incident side which are oppositely arranged; one side of the substrate base plate, which is far away from the black matrix, is the light incident side;
the touch display panel further comprises a data line repairing line; the data line repairing line is arranged between two adjacent gate lines, extends along the second direction, is overlapped with the data line in the direction perpendicular to the substrate base plate, and is not overlapped with the light transmitting area;
and multiplexing the conductive layer where the touch electrode is located to form the data line repairing line, wherein the data line repairing line is insulated from the touch electrode.
2. The touch display panel of claim 1,
the touch control electrode comprises a touch control transmitting electrode and a touch control receiving electrode.
3. The touch display panel of claim 2,
the touch transmitting electrode and the touch receiving electrode are arranged on the same layer.
4. The touch display panel of claim 3,
the touch control emitting electrode is strip-shaped and extends along the second direction;
the touch receiving electrodes are in a block shape, and the touch receiving electrodes are arranged along the second direction; the touch receiving electrodes positioned in the same row in the second direction are touch receiving electrode groups;
the touch transmitting electrode group and the touch receiving electrode group are alternately arranged along the first direction.
5. The touch display panel of claim 2,
the touch transmitting electrode and the touch receiving electrode are arranged in different layers.
6. The touch display panel of claim 5,
the touch control transmitting electrode is in a block shape, and the touch control receiving electrode is in a block shape;
the touch transmitting electrodes and the touch receiving electrodes are alternately arranged along the first direction, and the touch transmitting electrodes and the touch receiving electrodes are alternately arranged along the second direction.
7. The touch display panel of claim 1,
the touch control functional layer comprises a first conductive layer, a second conductive layer and a first insulating layer clamped between the first conductive layer and the second conductive layer;
the first conductive layer comprises a plurality of electromagnetic induction coils; the second conductive layer includes the touch electrode.
8. The touch display panel of claim 1,
the touch display panel further comprises a color resistance layer, and the color resistance layer comprises color resistances of at least three different colors.
9. The touch display panel of claim 8,
the color resistance layer is arranged on the substrate base plate;
the color resistance layer is arranged between the black matrix and the touch control functional layer, or the color resistance layer is arranged on one side of the thin film transistor array layer, which is far away from the substrate base plate.
10. The touch display panel of claim 8,
the touch display panel comprises an array substrate and a color film substrate;
the array substrate comprises the substrate, the black matrix, the touch function layer and the thin film transistor array layer;
the color film substrate comprises the color resistance layer.
11. The touch display panel of claim 1,
the material of the touch electrode comprises metal.
12. A touch display device comprising the touch display panel according to any one of claims 1 to 11.
13. The touch display device of claim 12,
the touch display panel comprises an array substrate and a color film substrate, wherein the array substrate comprises the substrate, the black matrix, the touch functional layer and the thin film transistor array layer;
the touch display device further comprises a backlight module;
the backlight module is arranged adjacent to the array substrate, and one side of the substrate, which is deviated from the black matrix, is the light incidence side;
or the backlight module is arranged adjacent to the color film substrate, and one side of the substrate departing from the black matrix is the light emergent side.
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| CN201710751035.2A CN107491211B (en) | 2017-08-28 | 2017-08-28 | Touch display panel and touch display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108334825A (en) * | 2018-01-22 | 2018-07-27 | 上海天马微电子有限公司 | Display panel and display device |
| CN108563352B (en) * | 2018-02-01 | 2021-02-02 | 京东方科技集团股份有限公司 | Touch display substrate, manufacturing method, touch display device and driving method |
| CN108762542B (en) * | 2018-03-30 | 2021-05-14 | 上海天马微电子有限公司 | Display panel and display device |
| CN108828784B (en) * | 2018-06-11 | 2021-05-25 | 张家港康得新光电材料有限公司 | Visual separation element and stereoscopic display device |
| CN109917957B (en) * | 2019-02-27 | 2023-11-21 | 上海天马微电子有限公司 | Touch panel, manufacturing method and repairing method thereof and touch device |
| CN111950324A (en) * | 2019-05-15 | 2020-11-17 | 京东方科技集团股份有限公司 | Ultrasonic sensor, manufacturing method thereof and display panel |
| CN110187798A (en) * | 2019-06-05 | 2019-08-30 | 京东方科技集团股份有限公司 | A kind of touch display substrate and preparation method thereof, touch control display apparatus |
| CN110888269B (en) * | 2019-11-29 | 2022-06-07 | 上海中航光电子有限公司 | Display panel and display device |
| WO2021168646A1 (en) * | 2020-02-25 | 2021-09-02 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN111430370B (en) * | 2020-03-31 | 2023-03-21 | 厦门天马微电子有限公司 | Display panel and display device |
| CN111443511A (en) * | 2020-04-16 | 2020-07-24 | 深圳市华星光电半导体显示技术有限公司 | Self-capacitance touch display panel and driving method thereof |
| CN111862809B (en) * | 2020-06-30 | 2022-07-12 | 上海中航光电子有限公司 | Display device and vehicle |
| CN112051934A (en) * | 2020-08-07 | 2020-12-08 | 武汉华星光电半导体显示技术有限公司 | Touch panel |
| CN112000243B (en) * | 2020-08-10 | 2022-10-11 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113113454B (en) * | 2021-03-26 | 2024-06-14 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN115148773A (en) * | 2022-06-30 | 2022-10-04 | 厦门天马显示科技有限公司 | Display panel and display device |
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| KR100835920B1 (en) * | 2001-12-27 | 2008-06-09 | 엘지디스플레이 주식회사 | Liquid Crystal Display Panel Associated With Touch Panel |
| CN101169527A (en) * | 2007-11-26 | 2008-04-30 | 上海广电光电子有限公司 | Method for rehabilitating line defect and its liquid crystal display device |
| CN103049155A (en) * | 2012-12-13 | 2013-04-17 | 北京京东方光电科技有限公司 | Embedded touch screen and display device |
| CN103049157B (en) * | 2012-12-14 | 2016-08-03 | 北京京东方光电科技有限公司 | A kind of capacitance type in-cell touch panel and display device |
| CN103913873B (en) * | 2013-08-07 | 2016-08-17 | 上海天马微电子有限公司 | A kind of liquid crystal panel, display device and scan method thereof |
| CN105116590B (en) * | 2015-09-28 | 2018-06-08 | 京东方科技集团股份有限公司 | Array substrate, display device and array substrate restorative procedure |
| CN106940489B (en) * | 2017-05-12 | 2020-04-21 | 上海中航光电子有限公司 | Liquid crystal display device |
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