CN107219955B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
- Publication number
- CN107219955B CN107219955B CN201710418126.4A CN201710418126A CN107219955B CN 107219955 B CN107219955 B CN 107219955B CN 201710418126 A CN201710418126 A CN 201710418126A CN 107219955 B CN107219955 B CN 107219955B
- Authority
- CN
- China
- Prior art keywords
- spacer
- substrate
- touch electrode
- display panel
- touch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
Abstract
The application provides a touch display panel and a touch display device, comprising a first substrate and a second substrate which are oppositely arranged, wherein the first substrate comprises a plurality of touch electrode wires, a plurality of first spacers and a plurality of second spacers are also arranged between the first substrate and the second substrate, the end face of the first spacer facing the first substrate is provided with a first orthographic projection on the first substrate, the first orthographic projection is in a strip shape, the length of the first orthographic projection is larger than or equal to the touch electrode wire contacted with the first spacer and the distance between the touch electrode wires adjacent to the first spacer, namely the first spacer is always positioned on the touch electrode wire, when one end of the first spacer is positioned at the edge of the touch electrode wire, namely the touch electrode wire is about to fall off, the part of the first spacer is also positioned on the adjacent touch electrode wire, thereby ensuring that the first spacer cannot fall off the touch electrode wire when the touch display panel is extruded, thereby preventing the alignment film in the display region from being scratched.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
Liquid crystal display devices have been widely used in consumer electronics products such as information and communication products because of their advantages such as non-radiative, light weight, and power saving. With the rapid development of display technology, touch screens have gradually spread throughout the lives of people. With the development of the capacitive touch display technology, the touch electrode can be directly integrated in the display panel, and the touch electrode and the existing film layer structure in the display panel are integrated together, so that the manufacturing cost is greatly reduced, the production efficiency is improved, and the thickness of the display panel is reduced.
As shown in fig. 1 and fig. 2, wherein fig. 1 is a top view of a liquid crystal touch display panel in the prior art; fig. 2 is a schematic cross-sectional structure view of the liquid crystal touch display panel shown in fig. 1 along AA', where the liquid crystal touch display panel includes a color film substrate 01 and an array substrate 02 which are oppositely disposed, and a liquid crystal layer (not shown in the figure) located between the color film substrate 01 and the array substrate 02. The array substrate 02 comprises a scanning line 026 and a data line 022 which are arranged in an insulating mode, and the scanning line 026 and the data line 022 are intersected to define a plurality of pixel units; each pixel unit comprises a pixel electrode and a thin film transistor, wherein the thin film transistor is manufactured on the thin film transistor substrate 021, and the pixel electrode is electrically connected with the drain electrode of the thin film transistor through a through hole 025. As shown in fig. 1, the array substrate 02 further includes touch electrode lines 023 formed on portions of the data lines 022, and a planarization layer 024 covering the touch electrode lines 023. A spacer 031 and a spacer 032 are further included between the color filter substrate 01 and the array substrate 02, and the spacer 031 is used for supporting a gap between the array substrate 02 and the color filter substrate 01.
Due to the existence of the touch electrode line, the distribution freedom of the spacers 031 and 032 is limited, and in the actual process, some spacers are supported on the touch electrode line, but after the touch display device is pressed by touch or pressed by external force, the spacers easily fall off from the touch electrode line, and the display area alignment film in the liquid crystal display device is scratched.
Disclosure of Invention
In view of the above, the present invention provides a touch display panel and a touch display device to solve the problem in the prior art that a spacer on a touch electrode line falls off from the touch electrode line when a force is applied to the spacer, thereby scratching an alignment film in a display area of a liquid crystal display device.
In order to achieve the purpose, the invention provides the following technical scheme:
a touch display panel, comprising:
the first substrate and the second substrate are oppositely arranged;
the first substrate comprises a plurality of scanning lines and a plurality of data lines, and the plurality of scanning lines and the plurality of data lines are crossed and insulated to define a plurality of pixel units; a planarization layer covering the plurality of scan lines and the plurality of data lines; a plurality of touch electrode lines located on the planarization layer and facing the surface of the second substrate, wherein the touch electrode lines are overlapped with orthographic projections of the data lines or the scanning lines on the first substrate;
a plurality of spacers positioned between the first substrate and the second substrate; the plurality of spacers comprise a plurality of first spacers and a plurality of second spacers, and the height of the first spacers is larger than that of the second spacers in the direction perpendicular to the first substrate;
the end face, facing the first substrate, of the first spacer has a first orthographic projection on the first substrate, the first orthographic projection is long-strip-shaped and extends along a first direction, the touch electrode line extends along a second direction, the second direction is perpendicular to the first direction, and the end face, facing the first substrate, of the first spacer and the touch electrode line have a first overlapped part;
the first spacer has a first length towards the end face of the first substrate along the first direction, and a first distance and a second distance are respectively formed between the touch electrode line with the first overlapping part and two touch electrode lines adjacent to the touch electrode line with the first overlapping part along the first direction;
wherein the first length is greater than or equal to the first spacing, and the first length is greater than or equal to the second spacing.
In the touch display panel and the touch display device provided by the invention, the end surface of the first spacer facing the first substrate has a first orthographic projection on the first substrate, the first orthographic projection is a strip shape and extends along the first direction, the touch electrode line extends along the second direction, the second direction is perpendicular to the first direction, the end surface of the first spacer facing the first substrate and the touch electrode line have a first overlapping portion, that is, the first spacer is located on the touch electrode line, and the surface of the first spacer contacting the touch electrode line is a strip shape perpendicular to the extending direction of the touch electrode line; the length of the first orthographic projection is larger than or equal to the distance between the touch electrode wire in contact with the first spacer and the touch electrode wire adjacent to the touch electrode wire, namely the first spacer is always positioned on the touch electrode wire, when one end of the first spacer is positioned at the edge of the touch electrode wire and is about to fall off the touch electrode wire, the other part of the first spacer is also positioned on the adjacent touch electrode wire, so that when the touch display panel is extruded, the first spacer cannot fall off the touch electrode wire, and an alignment film in a display area cannot be scratched.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic top view of a touch display panel in the prior art;
FIG. 2 is a schematic cross-sectional view of the touch display panel shown in FIG. 1 along AA';
fig. 3 is a schematic top view of a touch display panel according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of the touch display panel shown in FIG. 3 along line BB';
fig. 5 is a schematic top view of another touch display panel according to an embodiment of the invention;
fig. 6 is a schematic cross-sectional structure view of the touch display panel before and after the second substrate moves relative to the first substrate according to the embodiment of the invention;
fig. 7 is a schematic top view of another touch display panel according to an embodiment of the invention;
fig. 8 is a schematic diagram illustrating an overlapping position of a touch electrode line and a spacer of a touch display panel according to an embodiment of the invention;
fig. 9 is a schematic view illustrating shapes of overlapping positions of touch electrode lines and spacers according to an embodiment of the present invention;
fig. 10 is a schematic view of a touch display device according to an embodiment of the invention;
fig. 11 is a schematic top view of a TED product according to an embodiment of the present invention.
Detailed Description
As described in the background section, in the prior art, due to the existence of the touch electrode line, the distribution freedom of the spacers is limited, and some spacers are fabricated on the touch electrode line, but after the touch display device is pressed by touch or is pressed by an external force, the spacers fall off from the touch electrode line.
In general, the spacers are formed on a surface of the color film substrate facing the array substrate, the color film substrate further includes an alignment film covering the color film substrate and the spacers, and the array substrate also includes an alignment film covering the touch electrode lines. And because part of the spacers are located on the touch electrode lines, when the liquid crystal touch display panel is extruded by external force or the color film substrate is attached and deviated relative to the array substrate in the manufacturing process or application of the touch display device, the color film substrate slides relative to the array substrate on the plane where the color film substrate is located, so that the spacers slide off the touch electrode lines, an alignment film in a display area is scratched, alignment failure of liquid crystal molecules is caused, and abnormal display is caused.
Accordingly, the present invention provides a touch display panel, comprising:
the first substrate and the second substrate are oppositely arranged;
the first substrate comprises a plurality of scanning lines and a plurality of data lines, and the plurality of scanning lines and the plurality of data lines are crossed and insulated to define a plurality of pixel units; a planarization layer covering the plurality of scan lines and the plurality of data lines; a plurality of touch electrode lines located on the planarization layer and facing the surface of the second substrate, wherein the touch electrode lines are overlapped with orthographic projections of the data lines or the scanning lines on the first substrate;
a plurality of spacers positioned between the first substrate and the second substrate; the plurality of spacers comprise a plurality of first spacers and a plurality of second spacers, and the height of the first spacers is larger than that of the second spacers in the direction perpendicular to the first substrate;
the end face, facing the first substrate, of the first spacer has a first orthographic projection on the first substrate, the first orthographic projection is long-strip-shaped and extends along a first direction, the touch electrode line extends along a second direction, the second direction is perpendicular to the first direction, and the end face, facing the first substrate, of the first spacer and the touch electrode line have a first overlapped part;
the first spacer has a first length towards the end face of the first substrate along the first direction, and a first distance and a second distance are respectively formed between the touch electrode line with the first overlapping part and two touch electrode lines adjacent to the touch electrode line with the first overlapping part along the first direction;
wherein the first length is greater than or equal to the first spacing, and the first length is greater than or equal to the second spacing.
In the touch display panel and the touch display device provided by the invention, the end face of the first spacer facing the first substrate has a first orthographic projection on the first substrate, the first orthographic projection is in a strip shape and extends along the first direction, the touch electrode wire extends along the second direction, the second direction is perpendicular to the first direction, the end face of the first spacer facing the first substrate and the touch electrode wire have a first overlapped part, namely the first spacer is positioned on the touch electrode wire, and the surface of the first spacer contacting the touch electrode wire is in a strip shape perpendicular to the extending direction of the touch electrode wire; and the length of the first orthographic projection is greater than or equal to the distance between the touch electrode wire in contact with the first spacer and the touch electrode wire adjacent to the touch electrode wire, namely the first spacer is always positioned on the touch electrode wire, when one end of the first spacer is positioned at the edge of the touch electrode wire and is about to fall off the touch electrode wire, the other part of the first spacer is positioned on the adjacent touch electrode wire, so that when the touch display panel is extruded, the first spacer cannot fall off the touch electrode wire, and the alignment film in the display area cannot be scratched.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic top view of a touch display panel according to an embodiment of the invention, and fig. 4 is a schematic cross-sectional view of the touch display panel shown in fig. 3 along BB'.
As shown in fig. 3 and 4, the touch display panel includes: a first substrate 12 and a second substrate 11 disposed opposite to each other; the first substrate 12 includes a plurality of scan lines 126 and a plurality of data lines 122, the plurality of scan lines 126 and the plurality of data lines 122 intersect and are arranged in an insulating manner to define a plurality of pixel units, as shown by R (Red ) G (Green, Green) B (Blue ) in fig. 3; a planarization layer 124 covering the plurality of scan lines 126 and the plurality of data lines 122; a plurality of touch electrode lines 123 located on the planarization layer 124 facing the surface of the second substrate 11, wherein the touch electrode lines 123 overlap with orthographic projections of the data lines 122 on the first substrate 12; a plurality of spacers positioned between the first substrate 12 and the second substrate 11; the plurality of spacers include a plurality of first spacers 131 and a plurality of second spacers 132, and a height H of the first spacers 131 is greater than a height H of the second spacers 132 in a direction perpendicular to the first substrate 12; the end surface of the first spacer 131 facing the first substrate 12 has a first orthographic projection 131a on the first substrate 12, the first orthographic projection 131a is long, the extending direction F of the first orthographic projection 131a is perpendicular to the extending direction S of the touch electrode line 123, and the end surface of the first spacer 131 facing the first substrate has a first overlapping portion with the touch electrode line 123; moreover, the first orthographic projection 131a has a first length D1 in the extending direction F thereof, that is, the length of the end face of the first spacer 131 facing the first substrate 12 in the first direction F; a first distance D1 and a second distance D2 are respectively provided between the touch electrode line having the first overlapping portion and two touch electrode lines adjacent to the touch electrode line having the first overlapping portion along the first direction F, wherein the first length D1 is greater than or equal to the first distance D1, and the first length D1 is greater than or equal to the second distance D2.
In the embodiment of the present invention, the number of the touch electrode lines is not limited, the touch electrode lines may be located on each data line or scan line, and are arranged in a one-to-one correspondence with the data lines or scan lines, and the touch electrode lines may also be located only on a part of the data lines or scan lines, for example, only the data lines or scan lines of some pixel units in the RGB pixel units are provided with touch electrode lines, and the data lines or scan lines in other pixel units are not provided with touch electrode lines.
It should be noted that, when the touch electrode lines are disposed on each data line or each scan line, the distances between any two touch electrode lines are the same, that is, the first distance d1 is equal to the second distance d 2; when a portion of the data lines or the scan lines are provided with touch electrode lines, but another portion of the data lines or the scan lines are not provided with touch electrode lines, the first distance D1 is different from the second distance D2, and the first length D1 is greater than or equal to the larger value of the first distance D1 and the second distance D2. For convenience of description, the embodiments below of the present invention are described with an example in which each data line or each scan line is provided with a touch electrode line (i.e., the first pitch is equal to the second pitch); the touch electrode lines are disposed on a part of the data lines or the scanning lines, and the situation that the touch electrode lines are not disposed on the other part of the data lines or the scanning lines is similar to the situation that the touch electrode lines are disposed on each data line or each scanning line, and details are not repeated in the embodiment of the present invention.
In the embodiment of the present invention, the first substrate may be an array substrate, the first substrate may further include a thin film transistor array, a common electrode, and other structures, the second substrate may be a color film substrate, and a color resist layer, a black matrix, and other structures are formed on the color film substrate. The liquid crystal layer is clamped between the first substrate and the second substrate and is used for realizing the display function of the touch display panel.
It should be noted that, in the embodiment of the present invention, the extending direction of the touch electrode line is not limited, alternatively, as shown in fig. 3, the extending direction of the touch electrode line 123 may be the same as the extending direction of the data line 122, and in the projection on the first substrate, the projection of the touch electrode line 123 overlaps the projection of the data line 122; in other embodiments of the present invention, as shown in fig. 5, the extending direction of the touch electrode line 123 may also be the same as the extending direction of the scan line 126, and in the projection of the first substrate, the projection of the touch electrode line 123 overlaps the projection of the scan line 126, and accordingly, the length extending direction of the front projection 131a of the first spacer is perpendicular to the extending direction of the touch electrode line 123 and extends along the second direction S. This is not limited in this embodiment, and may be designed according to the manufacturing requirement of the actual touch electrode line.
In the embodiment of the invention, the touch display panel includes a plurality of spacers, and the plurality of spacers includes a first spacer 131 and a second spacer 132, wherein, in a direction perpendicular to the first substrate 12, a height H of the first spacer 131 is greater than a height H of the second spacer 132. The first spacer 131 is located on the touch electrode line 123, in order to prevent the first spacer 131 disposed on the touch electrode line 123 from falling off the touch electrode line 123, an end surface of the first spacer 131 contacting the touch electrode line 123, that is, an end surface of the first spacer 131 facing the first substrate 12, is configured to be long, the extending directions of the first spacer 131 and the touch electrode line are perpendicular to each other, and by increasing the length of the first spacer 131, the length of the end surface of the first spacer 131 facing the first substrate 12, that is, the first length D1 of the first orthographic projection 131a is greater than or equal to the first distance, and when the touch display panel is pressed or the first substrate 12 is attached and deviated relative to the second substrate 11, the first spacer 131 is not easy to fall off the touch electrode line 123.
Specifically, as shown in fig. 6, fig. 6 is a schematic cross-sectional structure view of the touch display panel before and after the second substrate moves relative to the first substrate according to the embodiment of the present invention. The first length D1 of the first orthographic projection of the first spacer 131 in the direction perpendicular to the extending direction of the touch electrode lines 123 is greater than or equal to the distance between two adjacent touch electrode lines 123, when the touch display panel is not pressed by the outside, the second substrate 11 is at the dotted line position, the first spacer 131 is at the C1 position, and at this time, the first spacer 131 is only located on the touch electrode lines 123, and when the touch display panel is pressed by an external force or the touch pressing force is small, the second substrate 11 moves along the F1 direction, or the displacement of the first substrate 12 moving along the F2 direction is small, since the first length of the first spacer 131 towards the end surface of the first substrate is large, the first spacer 131 is not easy to fall off the touch electrode lines 123 when moving relative to the touch electrode lines 123.
When the touch display panel is pressed by external force or the touch pressing force is large, the second substrate 11 moves along the direction of F1, or the first substrate 12 moves along the direction of F2 with a large displacement, the displacement of the first spacer 131 may be larger than the distance between two adjacent touch electrode lines 123, at this time, since the first length D1 is larger than or equal to the distance between two adjacent touch electrode lines 123, as shown in fig. 6, the first spacer 131 may move to the position of C2 (the displacement shown in fig. 6 is microstructure displacement, when the touch display panel is pressed by external force or touch pressing, the display panel is bent and deformed, and when a microstructure is displayed, the display panel appears as dislocation between the first substrate and the second substrate), at this time, the right end of the first spacer 131 will fall off the touch electrode lines 123, but at the same time, the left end of the first spacer 131 (the first length D1 is equal to the distance between two adjacent touch electrode lines 123) is already (the first length D1 is just larger than the distance between two adjacent touch electrode lines 123) The distance between the touch electrode lines 123), that is, when the touch display panel is squeezed by an external force or the touch squeezing force is large, the first spacer 131 can be always located on at least one touch electrode line 123 without falling off from the touch electrode line 123, so that the alignment film in the display area is not subjected to a force perpendicular to the alignment film, and the alignment film in the display area is not scratched, so that the display of the touch display panel is not affected.
It should be noted that, in the present embodiment, as long as the first length D1 is greater than or equal to the distance between the touch electrode line having the first overlapped portion and the two touch electrode lines adjacent to the first overlapped portion, it can be ensured that the first spacer 131 is always located on at least one touch electrode line 123. Therefore, in this embodiment, optionally, the first length D1 is smaller than twice the first distance or the second distance, that is, the first spacer 131 is always located on one touch electrode line 123.
It should be noted that, in the embodiment of the present invention, the alignment film in the display region may be prevented from being scratched by the first spacer as long as the first spacer is always located on the touch electrode line, and therefore, the second spacer is not limited in this embodiment, and alternatively, the projection of the second spacer on the first substrate may be circular (as shown by 132a in fig. 5), long-strip (as shown by 132a in fig. 3), or may be oval, spindle-shaped, and the like, which is not limited in this embodiment.
Further, in order to prevent the alignment film of the display area from being scratched when the first spacer 131 is located on one touch electrode line 123 and is inclined, in an embodiment of the present invention, optionally, the first length D1 is greater than or equal to twice a distance D between centers of two adjacent touch electrode lines 123 in the extending direction F of the first orthographic projection 131a, that is, the first spacer 131 is always located on at least two adjacent touch electrode lines 123, so as to prevent the first spacer 131 from being inclined and scratching the alignment film of the display area.
Specifically, fig. 7 is a schematic top view of the touch display panel when the first length D1 is greater than or equal to two times the first pitch or the second pitch according to the embodiment of the present invention. As shown in fig. 7, the touch display panel includes: a plurality of scan lines 226 and a plurality of data lines 222, wherein the plurality of scan lines 226 and the plurality of data lines 222 intersect and are insulated to define a plurality of pixel units, as shown by R (Red ) G (Green, Green) B (Blue ); a plurality of touch electrode lines 223 are further included, and the touch electrode lines 223 are overlapped with the orthographic projections of the data lines 222; a plurality of first spacers 231 and a plurality of second spacers 232; the first length of the orthographic projection 231a of the first spacer is greater than or equal to twice the distance between the centers of two adjacent touch electrode lines 223 along the extending direction F of the first orthographic projection 231a, so that the first spacer 231 is located on at least two touch electrode lines 223 at the same time.
It should be noted that, as shown in fig. 8, in an actual manufacturing process, the touch electrode line 123 is manufactured at a position avoiding the via hole 125, an area of the first orthographic projection 131a of the first spacer is S1, and an area of the first overlapping portion, which is a contact area of the first spacer and the touch electrode line 123, is S2, as can be seen from fig. 8, an area S2 of the first spacer and the touch electrode line 123 is much smaller than the area S1 of the first orthographic projection 131a, in order to increase the contact area of the first spacer and the touch electrode line 123, so that the touch electrode line 123 plays a better supporting role for the first spacer, in this embodiment, the first overlapping portion formed by the first spacer and the touch electrode line 123 may be further provided with a circular shape, a rectangular shape, or a spindle shape, where the spindle shape avoids the via hole 125.
In an actual manufacturing process, the shape of the first overlapping portion may be changed by changing the shape of the end surface of the first spacer facing the first substrate, or the shape of the first overlapping portion may also be changed by changing the shape of the touch electrode line, and optionally in this embodiment, as shown in fig. 9, the shape of the first overlapping portion is circular, rectangular, or spindle-shaped by setting the shape of the region of the touch electrode line corresponding to the first overlapping portion to be circular 1231, rectangular 1232, or spindle-shaped 1233. It should be noted that, in the direction perpendicular to the touch electrode line 123, the width w1 of the area on the touch electrode line 123 corresponding to the first overlapping portion is greater than the width w2 of the area on the touch electrode line 123 except for the first overlapping portion, so as to increase the area of the first overlapping portion, that is, increase the contact area between the first spacer and the touch electrode line 123, and further improve the supporting effect of the touch electrode line on the first spacer.
In the embodiment of the invention, the plurality of spacers includes a first spacer and a second spacer, and as shown in fig. 4, the height H of the first spacer 131 is greater than the height H of the second spacer 132 in the direction perpendicular to the first substrate 12. In a state where the touch display panel is not pressed, one side of the first spacer 131 close to the first substrate 12 is in contact with the touch electrode line 123 to maintain a certain thickness of the touch display panel, and the second spacer is not in contact with the touch electrode line or other structures on the first substrate. When the touch display panel is deformed by being pressed, the first spacer 131 is in a compressed state, and the second spacer 132 starts to play a supporting role, so as to prevent the touch display panel from being damaged by unrecoverable deformation.
In order to support the second spacer 132 after the first spacer 131 is compressed when the touch display panel is subjected to a forward pressure, and prevent the first spacer 131 from being compressed further and contacting the alignment film in the display area, which may affect the normal display of the touch display panel, in this embodiment, optionally, in a direction perpendicular to the first substrate 12, a difference between the height H of the first spacer 131 and the height H of the second spacer 132 is smaller than a height of the touch electrode line 123 protruding from the planarization layer 124, so that when the touch display panel is subjected to the forward pressure, the second spacer 132 may support the first spacer 131 before the first spacer 131 contacts the alignment film in the display area.
It should be noted that, in the embodiment of the invention, the material of the second spacer may be harder than the material of the first spacer, so that under the same pressure, the compressibility of the second spacer is smaller than that of the first spacer, and the first spacer is prevented from contacting the alignment film in the display region to affect the display of the touch display panel. In addition, the total number of the second spacers is more than 20-30 times of the total number of the first spacers, so that the compression ratio of the second spacers is less than that of the first spacers, and the first spacers are prevented from contacting the alignment film in the display area to influence the display. At this time, the first spacer and the second spacer can be made of the same material, and in the manufacturing process, the first spacer and the second spacer can be produced by the same process, so that half of the capacity can be saved and the manufacturing efficiency can be improved compared with the case of separately manufacturing the two spacers.
After the first spacer is compressed, when the second spacer plays a supporting role, in order to avoid scratching the alignment film by the second spacer, in this embodiment, as shown in fig. 3, an end surface of the second spacer facing the first substrate has a second orthographic projection 132a on the first substrate, the second orthographic projection 132a is also configured to be a strip shape, an extending direction F of the second orthographic projection 132a is perpendicular to an extending direction S of the touch electrode line 123, and the second spacer and the touch electrode line 123 have a second overlapping portion; the end face, facing the first substrate, of the second spacer has a second length D2 along the first direction, and a third distance and a fourth distance are respectively formed between the touch electrode line with the second overlapping portion and two touch electrode lines adjacent to the touch electrode line with the second overlapping portion along the first direction; the second length D2 is greater than or equal to the third distance, and the second length is greater than or equal to the fourth distance. In this embodiment, referring to fig. 3, since the distances between any two adjacent touch electrode lines are the same, the first pitch, the second pitch, the third pitch, and the fourth pitch are the same in this embodiment. In other embodiments of the present invention, the first distance, the second distance, the third distance, and the fourth distance may also be different, and details are not described in this embodiment.
Likewise, the specific value of the second length is not limited in this embodiment, and optionally, in this embodiment, as long as the second length D2 is greater than or equal to the distance between the touch electrode line having the second overlapped portion and the two adjacent touch electrode lines, it can be ensured that the second spacer 131 is always located on at least one touch electrode line 123. Therefore, in this embodiment, optionally, the second length D2 is smaller than twice the third pitch or the fourth pitch, that is, it is ensured that the second spacer is always located on one touch electrode line 123.
Further, in order to prevent the second spacer from scratching the alignment film in the display area when the second spacer is tilted when the second spacer is located on one touch electrode line, in an embodiment of the present invention, optionally, the second length D2 is greater than or equal to twice the third distance, that is, the second spacer is always located on at least two adjacent touch electrode lines 123, so as to prevent the second spacer from being tilted and scratching the alignment film in the display area.
Similar to the first spacer, the area of the second overlapping portion of the second spacer and the touch electrode line is also smaller than the area of the second orthographic projection, and in order to increase the contact area between the second spacer and the touch electrode line 123 and enable the touch electrode line 123 to better support the second spacer, in this embodiment, the second overlapping portion formed by the second spacer and the touch electrode line 123 may be set to be circular, rectangular or spindle-shaped, where the spindle-shape is a spindle-shape avoiding the via hole 125.
In an actual manufacturing process, the shape of the second overlapping portion may be changed by changing the shape of the end surface of the second spacer facing the first substrate, or the shape of the second overlapping portion may also be changed by changing the shape of the touch electrode line. It should be noted that, in a direction perpendicular to the touch electrode line 123, a width of a region of the touch electrode line 123 corresponding to the second overlapping portion is greater than widths of other regions of the touch electrode line 123 except the second overlapping portion, so as to increase an area of the second overlapping portion, that is, increase a contact area between the second spacer and the touch electrode line 123, and further improve a supporting effect of the touch electrode line on the second spacer.
In this embodiment, the arrangement of the first spacers and the second spacers is not limited, and optionally, a plurality of first spacers form a plurality of first spacer rows along a direction perpendicular to the extending direction of the first spacers; the second spacers form a plurality of second spacer rows along the direction perpendicular to the extending direction of the second spacers; the first spacer rows and the second spacer rows are alternately and repeatedly arranged in a direction perpendicular to an extending direction of the first spacers. In order to uniformly distribute the plurality of spacers in this embodiment, optionally, in the adjacent first spacer row and the second spacer row, the centers of the first spacers and the centers of the second spacers are arranged in a staggered manner in the extending direction of the first spacers.
It should be noted that, in the embodiment of the present invention, the arrangement positions of the plurality of spacers are not limited, the plurality of spacers may be fabricated on the first substrate, or may be fabricated on the second substrate, and since the plurality of data lines, the plurality of scan lines, and the plurality of touch electrode lines are disposed on the first substrate in this embodiment, in order to reduce the fabrication complexity of the first substrate, in this embodiment, the first spacers and the second spacers are optionally formed on the second substrate.
In the embodiment of the invention, the second substrate is also provided with the black matrix, and the black matrix is arranged corresponding to the scanning lines and the data lines, so that light leakage between adjacent pixel units can be effectively shielded, and color mixing is avoided. It should be noted that, as shown in fig. 1, the black matrix is shown as a dotted area 04 in the figure, but since the spacers on the touch electrode lines in the prior art are easy to fall off the touch electrode lines and scratch the alignment film, thereby causing light leakage in a partial display area, the black matrix needs to be enlarged near the spacers, as shown in the BM area in fig. 1, so as to block the light leakage that may occur.
In the embodiment of the invention, the length of the first spacer and/or the second spacer is increased, so that the first spacer and/or the second spacer are prevented from falling off the touch electrode line and scratching the alignment film, and further, the touch display panel provided by the embodiment of the invention does not need to be additionally provided with a black matrix to shield light leakage. Therefore, as shown in the black matrix 14 of fig. 3 and the black matrix 24 of fig. 7, the black matrix in the embodiment of the present invention only corresponds to the scan lines and the data lines, and does not need to be arranged in an increased manner, so that the light transmittance of the high PPI touch display panel is improved.
In the touch display panel and the touch display device provided by the invention, the end face of the first spacer facing the first substrate is provided with a first orthographic projection on the first substrate, the first orthographic projection is in a strip shape, the extending direction of the first orthographic projection is vertical to the extending direction of the touch electrode wire, the end face of the first spacer facing the first substrate is provided with a first overlapped part with the touch electrode wire, namely the first spacer is positioned on the touch electrode wire, and the surface of the first spacer, which is in contact with the touch electrode wire, is in a strip shape vertical to the extending direction of the touch electrode wire; the length of the first orthographic projection is larger than or equal to the distance between two adjacent touch electrode wires, namely the first spacer is always positioned on the touch electrode wires, when one end of the first spacer is positioned at the edge of the touch electrode wires and is about to fall off the touch electrode wires, part of the first spacer is positioned on the adjacent touch electrode wires, and therefore when the touch display panel is extruded, the first spacer cannot fall off the touch electrode wires, and an alignment film in a display area cannot be scratched.
Furthermore, the alignment film in the display area is not easy to scratch, light leakage caused by scratching of the alignment film is not easy to occur, and the black matrix can not be expanded, so that the light transmittance of the touch display panel is improved.
On the other hand, the spacers are not easy to fall off from the touch electrode lines, so that the spacers are more stably supported, and the strength of the touch display panel can be improved.
In an embodiment of the present invention, a touch display device is further provided, as shown in fig. 10, the touch display device includes the touch display panel 100 described in the above embodiment. The touch display device provided by the embodiment of the invention also has the beneficial effects of the touch display panel provided by the embodiment of the invention, and the details are not repeated herein. The touch display device in this embodiment may be any display device with a touch display function, such as a mobile phone, a desktop computer, a notebook computer, and a tablet computer.
It should be noted that, in the present invention, specific forms of the touch display panel and the touch display device are not limited, and the touch display panel and the touch display device may be a TED (touch embedded device) product or a non-TED product, where the process of the TED product includes a process of a touch electrode line, and the non-TED product does not have a process of a touch electrode line. As shown in fig. 11, which is a top view structure diagram of a TED product, includes: the touch screen comprises a plurality of block-shaped common electrodes 127 and a plurality of driving circuits 5 which are arranged in a matrix mode, wherein the block-shaped common electrodes 127 are connected with the driving circuits 5 through touch electrode lines 123, and therefore the touch function is achieved.
For a TED product, a touch function is realized in a self-contained manner, and in the prior art, one driving chip corresponds to one touch electrode line. In the embodiment of the invention, the touch electrode lines are manufactured on each data line or each scanning line, and the number of the touch electrode lines can be increased, so that a scheme that two touch electrode lines correspond to one driving chip is realized, impedance can be reduced, and touch performance can be improved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (18)
1. A touch display panel, comprising:
the first substrate and the second substrate are oppositely arranged;
the first substrate comprises a plurality of scanning lines and a plurality of data lines, and the plurality of scanning lines and the plurality of data lines are crossed and insulated to define a plurality of pixel units; a planarization layer covering the plurality of scan lines and the plurality of data lines; a plurality of touch electrode lines located on the planarization layer and facing the surface of the second substrate, wherein the touch electrode lines are overlapped with orthographic projections of the data lines or the scanning lines on the first substrate;
a plurality of spacers positioned between the first substrate and the second substrate; the plurality of spacers comprise a plurality of first spacers and a plurality of second spacers, and the height of the first spacers is larger than that of the second spacers in the direction perpendicular to the first substrate;
the end face, facing the first substrate, of the first spacer has a first orthographic projection on the first substrate, the first orthographic projection is long-strip-shaped and extends along a first direction, the touch electrode line extends along a second direction, the second direction is perpendicular to the first direction, and the end face, facing the first substrate, of the first spacer and the touch electrode line have a first overlapped part;
the first spacer has a first length towards the end face of the first substrate along the first direction, and a first distance and a second distance are respectively formed between the touch electrode line with the first overlapping part and two touch electrode lines adjacent to the touch electrode line with the first overlapping part along the first direction;
wherein the first length is greater than or equal to the first spacing, and the first length is greater than or equal to the second spacing.
2. The touch display panel of claim 1, wherein the first pitch is equal to the second pitch.
3. The touch display panel of claim 2, wherein the first length is less than twice the first pitch.
4. The touch display panel of claim 2, wherein the first length is greater than or equal to twice the first pitch.
5. The touch display panel of claim 1, wherein the first overlapping portion is circular, rectangular, or spindle-shaped.
6. The touch display panel according to claim 5, wherein a region of the touch electrode lines having the first overlapping portion corresponding to the first overlapping portion has a circular, rectangular, or spindle shape, and a width of the region of the touch electrode lines having the first overlapping portion corresponding to the first overlapping portion is larger than widths of regions other than the first overlapping portion in the first direction.
7. The touch display panel according to claim 1, wherein a difference between a height of the first spacer and a height of the second spacer in a direction perpendicular to the first substrate is smaller than a height of the touch electrode line protruding from the planarization layer.
8. The touch display panel according to claim 1, wherein an end surface of the second spacer facing the first substrate has a second orthographic projection on the first substrate, the second orthographic projection is elongated and extends in the first direction, and the end surface of the second spacer facing the first substrate has a second overlapping portion with the touch electrode line;
the end face, facing the first substrate, of the second spacer has a second length along the first direction, and a third distance and a fourth distance are respectively formed between the touch electrode line with the second overlapping portion and two adjacent touch electrode lines adjacent to the touch electrode line with the second overlapping portion along the first direction;
wherein the second length is greater than or equal to the third pitch, and the second length is greater than or equal to the fourth pitch.
9. The touch display panel of claim 8, wherein the third pitch is equal to the fourth pitch.
10. The touch display panel of claim 9, wherein the second length is less than twice the third pitch.
11. The touch display panel of claim 9, wherein the second length is greater than or equal to twice the third pitch.
12. The touch display panel according to claim 9, wherein the second overlapping portion is circular, rectangular, or spindle-shaped.
13. The touch display panel according to claim 9, wherein a region of the touch electrode line having the second overlapping portion corresponding to the second overlapping portion is circular, rectangular, or spindle-shaped, and a width of the region of the touch electrode line having the second overlapping portion corresponding to the second overlapping portion is larger than widths of regions other than the second overlapping portion in the first direction.
14. The touch display panel of any one of claims 1-13, wherein the first spacers form a plurality of first spacer rows along the second direction; the plurality of second spacers form a plurality of second spacer rows along a second direction; the first spacer rows and the second spacer rows are alternately and repeatedly arranged along a second direction.
15. The touch display panel according to claim 14, wherein in the adjacent first spacer row and the second spacer row, centers of the first spacers and centers of the second spacers are arranged in a staggered manner in the first direction.
16. The touch display panel of claim 14, wherein the first spacer and the second spacer are formed on the second substrate.
17. The touch display panel of claim 8, wherein the second substrate further comprises a black matrix, and wherein the first overlapping portion and the second overlapping portion are both located within an orthographic projection of the black matrix on the first substrate.
18. A touch display device comprising the touch display panel according to any one of claims 1 to 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418126.4A CN107219955B (en) | 2017-06-06 | 2017-06-06 | Touch display panel and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418126.4A CN107219955B (en) | 2017-06-06 | 2017-06-06 | Touch display panel and touch display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107219955A CN107219955A (en) | 2017-09-29 |
| CN107219955B true CN107219955B (en) | 2020-03-13 |
Family
ID=59947707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710418126.4A Active CN107219955B (en) | 2017-06-06 | 2017-06-06 | Touch display panel and touch display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107219955B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018137589A1 (en) | 2017-01-25 | 2018-08-02 | 昆山工研院新型平板显示技术中心有限公司 | Touch control display panel and method for manufacturing same, and touch control display device |
| CN107808598B (en) * | 2017-10-27 | 2019-11-26 | 上海天马微电子有限公司 | Curved surface display and manufacturing method thereof |
| CN107861297A (en) * | 2017-11-17 | 2018-03-30 | 武汉华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN109932843B (en) * | 2017-12-15 | 2023-09-29 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN109375427B (en) * | 2018-10-25 | 2022-01-11 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| TWI703371B (en) * | 2019-05-07 | 2020-09-01 | 友達光電股份有限公司 | Display panel |
| CN110262693B (en) * | 2019-06-21 | 2022-07-15 | 友达光电（昆山）有限公司 | Touch control display device |
| CN110794623B (en) * | 2019-11-14 | 2022-07-29 | Tcl华星光电技术有限公司 | Display panel and display device |
| CN111208916B (en) * | 2019-12-31 | 2022-11-08 | 厦门天马微电子有限公司 | Touch display panel and display device |
| CN114327133B (en) * | 2021-12-21 | 2023-07-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359112A (en) * | 2008-09-12 | 2009-02-04 | 友达光电股份有限公司 | Touch control type display panel |
| CN104570500A (en) * | 2014-12-31 | 2015-04-29 | 厦门天马微电子有限公司 | Liquid crystal display panel and device and manufacturing method thereof |
| KR20150078332A (en) * | 2013-12-30 | 2015-07-08 | 엘지디스플레이 주식회사 | Touch screen panel and method of fabricating the same |
| CN105093706A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Spacer, masking plate, display panel and display device |
| CN105404040A (en) * | 2015-12-31 | 2016-03-16 | 武汉华星光电技术有限公司 | Touch-control liquid crystal panel and liquid crystal display |
| CN105467691A (en) * | 2016-01-29 | 2016-04-06 | 上海天马微电子有限公司 | Touch display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759482B (en) * | 2016-05-06 | 2023-04-21 | 上海天马微电子有限公司 | Touch display panel and touch display device |
-
2017
- 2017-06-06 CN CN201710418126.4A patent/CN107219955B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359112A (en) * | 2008-09-12 | 2009-02-04 | 友达光电股份有限公司 | Touch control type display panel |
| KR20150078332A (en) * | 2013-12-30 | 2015-07-08 | 엘지디스플레이 주식회사 | Touch screen panel and method of fabricating the same |
| CN104570500A (en) * | 2014-12-31 | 2015-04-29 | 厦门天马微电子有限公司 | Liquid crystal display panel and device and manufacturing method thereof |
| CN105093706A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Spacer, masking plate, display panel and display device |
| CN105404040A (en) * | 2015-12-31 | 2016-03-16 | 武汉华星光电技术有限公司 | Touch-control liquid crystal panel and liquid crystal display |
| CN105467691A (en) * | 2016-01-29 | 2016-04-06 | 上海天马微电子有限公司 | Touch display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107219955A (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107219955B (en) | Touch display panel and touch display device | |
| CN111383554B (en) | Display panel and display device | |
| US11092860B1 (en) | Display panel and display device | |
| CN110579917B (en) | Display module and display device | |
| US11624956B2 (en) | Display panel and display device | |
| CN109212852B (en) | Display panel and display device | |
| US10156923B2 (en) | In-cell touch display panel, driving method thereof and display device | |
| US10732752B1 (en) | Display panel and display device | |
| CN207780740U (en) | A kind of touch panel and touch control display apparatus | |
| CN112071884B (en) | Display module and display device | |
| CN107203079B (en) | Display panel and display device | |
| CN101673015B (en) | Active-element array substrate and display panel | |
| CN107515698B (en) | Touch panel | |
| CN105892188A (en) | Liquid crystal display panel and device | |
| CN109637362B (en) | Display panel and display device | |
| CN108183095B (en) | Flexible display panels and its flip chip structure | |
| CN109633971B (en) | Display panel and display device | |
| CN104932154A (en) | Display substrate, display panel and display device | |
| CN110262137A (en) | Liquid crystal display device | |
| KR20150133934A (en) | Display apparatus | |
| CN116107121A (en) | Display panel and display device | |
| CN104216150A (en) | Display panel | |
| WO2022262079A1 (en) | Display panel, display apparatus and driver chip | |
| CN109765731B (en) | Display device | |
| US20200400989A1 (en) | Display panel, display module and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |