CN111045238A - Liquid crystal touch control display panel - Google Patents
Liquid crystal touch control display panel Download PDFInfo
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- CN111045238A CN111045238A CN201911295442.2A CN201911295442A CN111045238A CN 111045238 A CN111045238 A CN 111045238A CN 201911295442 A CN201911295442 A CN 201911295442A CN 111045238 A CN111045238 A CN 111045238A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 48
- 238000002161 passivation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- HRHKULZDDYWVBE-UHFFFAOYSA-N indium;oxozinc;tin Chemical compound [In].[Sn].[Zn]=O HRHKULZDDYWVBE-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- KYKLWYKWCAYAJY-UHFFFAOYSA-N oxotin;zinc Chemical compound [Zn].[Sn]=O KYKLWYKWCAYAJY-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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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
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a liquid crystal touch display panel.A via hole is formed in an opening area of a planarization layer and two sides of a metal layer, and a reinforcing layer is arranged on the surface of a common electrode; has the advantages that: compared with the existing liquid crystal touch display panel, the through holes are formed in the two sides of the opening area, the line changing layer of the public electrode in the opening area is bent gently, the stress is small, the fluctuation in the manufacturing process can be effectively avoided, the notch is eliminated, the problem that the public electrode is thin and easy to break is solved, meanwhile, the reinforcing layer is additionally arranged on the surface of the line changing layer, the thickness of the public electrode layer in the opening area is increased, the breakage of the public electrode can be further avoided, and the yield of products is effectively improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal touch display panel.
Background
Currently, the integrated touch display panel mainly includes two types: an external embedded type (On-Cell) which is used for arranging the touch sensor between a polarizer and a color film substrate of the display panel; and an In-Cell (In-Cell) embedding the touch sensor into a pixel structure of the display panel.
Fig. 1 shows a conventional embedded touch display panel, as shown in fig. 1, a touch display panel 100 includes an array substrate 101, a color filter substrate 103, and a liquid crystal layer 102 disposed between the array substrate 101 and the color filter substrate 103, the array substrate 101 includes a substrate 1011, a metal wiring layer 1012 prepared on a surface of the substrate 1011, and a planarization layer 1013 covering the metal wiring layer 1012, the planarization layer 1013 includes a planarization layer 10141 and a planarization layer 10142, an opening is provided on the planarization layer 1013 corresponding to the metal wiring layer 1012, due to fluctuation of the process, the process of the opening is deviated, a notch a is formed on a boundary between the planarization layer 10141 and the metal wiring layer 1012, then a common electrode 1015, a passivation layer 1016 and a pixel electrode 1017 are prepared on surfaces of the planarization layer 10141, the planarization layer 10142, and the metal wiring layer 1012, the common electrode 1015 at the notch a is thin and has a small bending angle, the touch panel is easy to break, so that the touch and display performance of the touch display panel is affected, and the yield of the touch display panel is reduced.
Therefore, in the liquid crystal touch display panel in the prior art, the common electrode forms a sharp corner at two sides of the metal routing layer, and the film layer is thin and is easy to break, so that the performance of the touch display panel is affected, and the yield of the touch display panel is reduced.
Disclosure of Invention
The invention provides a liquid crystal touch display panel, which can solve the technical problems that in the prior art, common electrodes in the liquid crystal touch display panel form sharp corners at two sides of a metal wiring layer, the film layer is thin and is easy to break, so that the performance of the touch display panel is influenced, and the yield of the touch display panel is reduced.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides an OLED display panel, which comprises an array substrate, a color film substrate arranged opposite to the array substrate, and a liquid crystal layer arranged between the array substrate and the color film substrate, and is characterized in that the array substrate comprises a first substrate, a dielectric layer arranged on the surface of the first substrate, a planarization layer arranged on the surface of the dielectric layer, a common electrode layer arranged on the surface of the planarization layer, a passivation layer arranged on the surface of the common electrode layer, and a pixel electrode layer arranged on the surface of the passivation layer.
The planarization layer is provided with an opening area and a non-opening area, a metal layer is arranged at the bottom of the opening area, the metal layer and the planarization layer are arranged separately to form a through hole, and the common electrode layer is provided with a wire changing layer on the surfaces of the through hole and the metal layer; the surface of the wire changing layer is provided with a reinforcing layer, the reinforcing layer is electrically connected with the wire changing layer, and the reinforcing layer is insulated from the pixel electrode.
According to a preferred embodiment of the present invention, the metal layer includes a plurality of metal signal lines.
According to a preferred embodiment of the present invention, the liquid crystal touch display panel further includes a touch display driving chip; the metal signal line is electrically connected with the touch display driving chip.
According to a preferred embodiment of the present invention, the common electrode is divided into a plurality of touch units along the longitudinal and transverse directions, and each touch unit is electrically connected to one of the metal signal lines.
According to a preferred embodiment of the present invention, the material of the stiffening layer and the wire-changing layer is the same.
According to a preferred embodiment of the present invention, the stiffening layer and the pixel electrode are disposed on the same layer, and are etched by exposure and development for the same process.
According to a preferred embodiment of the present invention, a contact surface between the wire-changing layer and the reinforcing layer is a bent contact surface, and the via holes are located on two sides of the bent contact surface.
According to a preferred embodiment of the present invention, the via hole is a groove or a circular arc, and the bottom width is in the range of 5 to 10 um.
According to a preferred embodiment of the present invention, the passivation layer and the pixel electrode layer are not disposed in the opening region, and the wire-changing layer is electrically connected to the reinforcing layer through the contact surface.
According to a preferred embodiment of the present invention, the color film substrate includes a second substrate, a light-shielding layer disposed on a surface of the second substrate, and a color-resist layer disposed on a surface of the second substrate and covering the light-shielding layer, which has the following beneficial effects: the invention provides a liquid crystal touch display panel.A via hole is formed in an opening area of a planarization layer and two sides of a metal layer, and a reinforcing layer is arranged on the surface of a common electrode; compared with the existing liquid crystal touch display panel, the through holes are formed in the two sides of the opening area, the line changing layer of the public electrode in the opening area is bent gently, the stress is small, the fluctuation in the manufacturing process can be effectively avoided, the notch is eliminated, the problem that the public electrode is thin and easy to break is solved, meanwhile, the reinforcing layer is additionally arranged on the surface of the line changing layer, the thickness of the public electrode layer in the opening area is increased, the breakage of the public electrode can be further avoided, and the yield of products is effectively improved.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a liquid crystal touch display panel in the prior art;
fig. 2 is a schematic structural view of a liquid crystal touch display panel according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of a touch structure in a liquid crystal touch display panel according to an embodiment of the present disclosure.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals, and broken lines in the drawings indicate that the elements do not exist in the structures, and only the shapes and positions of the structures are explained.
The invention aims at the technical problems that in the prior art, the common electrode in the liquid crystal touch display panel forms sharp corners at two sides of the metal routing layer, the film layer is thin and is easy to break, so that the performance of the touch display panel is influenced, and the yield of the touch display panel is reduced.
As shown in fig. 2, an embodiment of the application provides a liquid crystal touch display panel 200, where the liquid crystal touch display panel 200 includes an array substrate, a color filter substrate 205 disposed opposite to the array substrate, and a liquid crystal layer 204 disposed between the array substrate and the color filter substrate 205, where the array substrate includes a first substrate 2031, a dielectric layer 2032 disposed on a surface of the first substrate 2031, a planarization layer 2033 disposed on a surface of the dielectric layer 2032, a common electrode layer 2035 disposed on a surface of the planarization layer 2033, a passivation layer 2036 disposed on a surface of the common electrode layer 2035, and a pixel electrode layer 2037 disposed on a surface of the passivation layer 2036, and the pixel electrode layer 2037 includes a first sub-pixel electrode 20371 and a second sub-pixel electrode 20373.
The planarization layer 2033 has an opening area 201 and a non-opening area 202, the passivation layer 2036 and the pixel electrode 2037 are not disposed in the opening area 201, the bottom of the opening area 201 is disposed with a metal layer 2034, the metal layer 2034 is disposed separately from the planarization layer 2033 to form a via 2038, and the common electrode layer 2035 is disposed with a wire changing layer 20351 on the surfaces of the via 2038 and the metal layer 2034; the surface of the wire-changing layer 20351 is provided with a reinforcing layer 20372, the material of the reinforcing layer 20372 is the same as that of the wire-changing layer 20351, and preferably, the material is one or more of indium gallium zinc oxide, indium zinc tin oxide, and indium gallium zinc tin oxide. The wire-changing layer 20351 is electrically connected to the stiffening layer 20372 through a contact surface, and the stiffening layer 20372 is insulated from the pixel electrode 2037. In another embodiment, an insulating layer may be disposed between the line changing layer 20351 and the stiffening layer 20372, a via hole is disposed in the insulating layer, the line changing layer 20351 and the stiffening layer 20372 are electrically connected through the via hole, and the passivation layer 2036 is disposed separately from the passivation layer 20361 and the passivation layer 20362 corresponding to the non-opening region 202.
In this embodiment, the stiffening layer 20372 and the pixel electrode layer 2037 are disposed on the same layer, and are etched by exposure and development for the same process. The reinforcing layer 20372 is separated from the pixel electrode layer 2037 at the edge of the opening region 201, that is, the reinforcing layer 20372 and the first sub-pixel electrode 20371 maintain a first predetermined horizontal distance, and the reinforcing layer 20372 and the second sub-pixel electrode 20373 maintain a second predetermined horizontal distance, so as to avoid the creepage between the reinforcing layer 20372 and the pixel electrode layer 2037.
The contact surface between the wire-changing layer 20351 and the reinforcing layer 20372 is a bent contact surface, the bent contact surface is a multi-section bent shape with a gentle slope, and the via holes 2038 are located on two sides of the bent contact surface. Wherein, via hole 2038 includes first via hole 20381 and second via hole 20382, first via hole 20381 is located the contact surface left side of buckling, second via hole 20382 is located the contact surface right side of buckling, first via hole 20381 and second via hole 20382 bottom width are 5 to 10um within range, effectively avoided line change layer 20351 to form the closed angle in metal level 2034 both sides, the transition is more mild, stress is less, the incision has been eliminated, the thinner breakable problem of common electrode 2035 has been solved, line change layer 20351 surface increases stiffening layer 20372 in addition simultaneously, it is thick to increase common electrode layer 2035 membrane in the opening district, thereby can further avoid common electrode layer 2035 to break, the yield of product has effectively been promoted.
As shown in fig. 3, in the embodiment, the metal layer 2034 includes a plurality of metal signal lines 20341, and the plurality of metal signal lines 20341 are electrically connected to the touch display driving chip 2036, wherein the touch display driving chip 206 may be disposed inside the liquid crystal touch display panel 200 or in a frame of the liquid crystal touch display panel 200.
The common electrode 2035 is formed by distributing m × n touch sensing units in a horizontal and vertical array in a display area of the liquid crystal touch display panel, wherein the m × n touch sensing units are named sequentially, namely, a first row of touch sensing units, line 1-1, line 1-2, …, line1-n, a second row of touch sensing units, line 2-1, line 2-2, …, line2-n, …, an m-th row of touch sensing units, line m-1, line m-2, … and line-n; similarly, the first column of touch sensing units line 1-1, line 2-1, …, line-1, the second column of touch sensing units, line 1-2, line 2-2, …, line3-2, …, line-2, …, the nth column of touch sensing units, line1-n, line2-n, …, and line m-n.
Each touch sensing unit is individually electrically connected to the metal signal line 20341, and when the touch display driving chip 206 outputs a touch signal, the corresponding touch sensing unit will display corresponding information.
As shown in fig. 2, the liquid crystal touch display panel in the present application further includes a liquid crystal layer 204 located between the array substrate and the color film substrate 205, and including a rubber frame, a liquid crystal 2041, and a spacer 2042, where the rubber frame allows glasses on two sides of the liquid crystal 2041 to be tightly adhered; the liquid crystals 2041 are generally elliptical and are connected in series along the long axis direction, the liquid crystals 2041 in each row are one liquid crystal domain, any two adjacent liquid crystal domains are independent of each other, the boundary between any two adjacent liquid crystal domains is a continuously changing region, the liquid crystals 2041 around the spacer 2042 are arranged around the spacer 2042, and the deflection angle of the liquid crystals 2041 is determined by the size of an electric field between the common electrode layer 2035 and the pixel electrode layer 2037 in the array substrate.
The color film substrate comprises a second substrate 2051, a first shading layer 2052 and a second shading layer 2053 which are prepared on the second substrate 2051, and a color resistance layer 2054 which is prepared on the first shading layer 2052 and the second shading layer 2053, wherein the first shading layer 2052 and the second shading layer 2053 prevent a backlight source from generating a light mixing phenomenon after transmitting red, green and blue color resistance patterns in the liquid crystal layer 204 and the array substrate so as to avoid abnormal display, and meanwhile, the first shading layer 2052 and the second shading layer 2053 have a light reflecting effect and can reflect light incident to the surface of the color film substrate from the outside. The first light-shielding layer 2052 and the second light-shielding layer 2053 are preferably made of a black resin layer or a black matrix, and the black resin layer or the black matrix is exposed and developed through a light-shielding mask plate.
The invention has the beneficial effects that: the invention provides a liquid crystal touch display panel.A via hole is formed in an opening area of a planarization layer and two sides of a metal layer, and a reinforcing layer is arranged on the surface of a common electrode; compared with the existing liquid crystal touch display panel, the through holes are formed in the two sides of the opening area, the line changing layer of the public electrode in the opening area is bent gently, the stress is small, the fluctuation in the manufacturing process can be effectively avoided, the notch is eliminated, the problem that the public electrode is thin and easy to break is solved, the reinforcing layer is additionally arranged on the surface of the line changing layer, the thickness of the public electrode layer in the opening area is increased, the breakage of the public electrode can be further avoided, and the yield of products is effectively improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A liquid crystal touch display panel comprises an array substrate, a color film substrate arranged opposite to the array substrate, and a liquid crystal layer arranged between the array substrate and the color film substrate, and is characterized in that the array substrate comprises a first substrate, a dielectric layer arranged on the surface of the first substrate, a planarization layer arranged on the surface of the dielectric layer, a common electrode layer arranged on the surface of the planarization layer, a passivation layer arranged on the surface of the common electrode layer, and a pixel electrode layer arranged on the surface of the passivation layer;
the planarization layer is provided with an opening area and a non-opening area, a metal layer is arranged at the bottom of the opening area, the metal layer and the planarization layer are arranged separately to form a through hole, and the common electrode layer is provided with a wire changing layer on the surfaces of the through hole and the metal layer; the surface of the wire changing layer is provided with a reinforcing layer, the reinforcing layer is electrically connected with the wire changing layer, and the reinforcing layer is insulated from the pixel electrode.
2. The liquid crystal touch display panel of claim 1, wherein the metal layer comprises a plurality of metal signal lines.
3. The liquid crystal touch display panel according to claim 2, further comprising a touch display driving chip;
the metal signal line is electrically connected with the touch display driving chip.
4. The liquid crystal touch display panel of claim 3, wherein the common electrode is divided into a plurality of touch units along the longitudinal and transverse directions, and each touch unit is electrically connected to one of the metal signal lines individually.
5. The liquid crystal touch display panel of claim 1, wherein the stiffening layer and the wire-changing layer are made of the same material.
6. The liquid crystal touch display panel according to claim 1, wherein the stiffening layer and the pixel electrode are disposed on the same layer, and are etched by exposure and development for the same process.
7. The liquid crystal touch display panel of claim 1, wherein the contact surface between the wire-changing layer and the reinforcing layer is a bent contact surface, and the via holes are located on two sides of the bent contact surface.
8. The liquid crystal touch display panel of claim 7, wherein the via hole is a groove or an arc, and the bottom width is in the range of 5 to 10 um.
9. The liquid crystal touch display panel of claim 1, wherein no passivation layer or pixel electrode layer is disposed in the opening region, and the wire-changing layer is electrically connected to the stiffening layer through a contact surface.
10. The liquid crystal touch display panel according to claim 1, wherein the color film substrate comprises a second substrate, a light-shielding layer disposed on a surface of the second substrate, and a color-resist layer disposed on a surface of the second substrate and covering the light-shielding layer.
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CN201911295442.2A CN111045238B (en) | 2019-12-16 | 2019-12-16 | Liquid crystal touch control display panel |
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CN201911295442.2A CN111045238B (en) | 2019-12-16 | 2019-12-16 | Liquid crystal touch control display panel |
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CN113433724A (en) * | 2021-07-05 | 2021-09-24 | 武汉华星光电技术有限公司 | Display panel and display device |
Citations (8)
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