CN114078401B - Touch integrated Micro-LED display panel - Google Patents
Touch integrated Micro-LED display panel Download PDFInfo
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- CN114078401B CN114078401B CN202111336879.3A CN202111336879A CN114078401B CN 114078401 B CN114078401 B CN 114078401B CN 202111336879 A CN202111336879 A CN 202111336879A CN 114078401 B CN114078401 B CN 114078401B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a touch integrated Micro-LED display panel, which comprises an array substrate and a Micro-LED chip positioned on the array substrate; the array substrate is internally provided with a touch layer, the touch layer and a metal layer of a thin film transistor in the array substrate are prepared in the same layer, and the touch layer and a display driving wire of the array substrate are connected with the same driving control chip; according to the invention, the touch control layer is arranged in the array substrate, so that the thickness and the manufacturing cost of the display panel can be effectively reduced, and the use comfort is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch integrated Micro-LED display panel.
Background
The Micro-LED panel is a comprehensive technology of composite integration of a novel display technology and a Light Emitting Diode (LED) technology because of the fact that the Micro-LED panel is composed of a micron-sized semiconductor light emitting unit array, and is considered to be one of the most promising novel display and light emitting devices of the next generation due to the characteristics of high flexibility, self-luminescence, high efficiency, low power consumption, high integration, high stability, easiness in disassembly and combination and the like of a Micro-LED chip.
The Touch panel is used as a medium of man-machine interaction, plays a vital role in display technology, and the traditional DOT Touch (capacitive Touch technology) scheme mainly comprises types such as resistance type and capacitance type, wherein the capacitive Touch screen is widely applied, the basic principle is that a tool such as a finger or a Touch pen is used for generating capacitance with the Touch screen, and whether the panel is touched or not and a Touch coordinate are confirmed by utilizing an electric signal formed by capacitance change before and after Touch. At present, a touch layer is formed on the light emitting side of the display panel to detect the touch position and the touch pressure, but the thickness of the display panel is certainly increased by the scheme, and the method does not accord with the development trend of the ultra-thin Micro-LED display panel at present.
Therefore, a novel touch integrated Micro-LED display panel is required to be provided, so as to solve the technical problems of increasing the thickness and manufacturing cost of the display panel and reducing the use comfort of the existing touch display panel by adopting a touch layer to be overlapped on the surface of the display panel.
Disclosure of Invention
According to the prior art problem, the utility model provides a novel integrated Micro-LED display panel of touch, it is integrated in Micro-LED display panel with touch function, has effectively reduced manufacturing cost and screen thickness, has promoted the use comfort simultaneously.
The embodiment of the invention provides a touch integrated Micro-LED display panel, which comprises an array substrate and a Micro-LED chip positioned on the array substrate.
The array substrate is internally provided with a touch layer, the touch layer and a metal layer of a thin film transistor in the array substrate are prepared in the same layer, and the touch layer and a display driving wiring of the array substrate are connected with the same driving control chip.
According to a preferred embodiment of the present invention, the touch layer includes a touch sensor layer and the touch routing layer electrically connected to the touch sensor layer.
The array substrate at least comprises a substrate, an active layer positioned on the substrate, a grid electrode positioned on the active layer, a source/drain electrode layer positioned on the grid electrode, a touch routing layer positioned on the source/drain electrode layer and a touch sensor layer positioned on the touch routing layer.
According to a preferred embodiment of the present invention, the touch sensor layer is divided into a plurality of touch units along a longitudinal direction and a transverse direction, and each touch unit is electrically connected to one touch trace separately.
According to a preferred embodiment of the present invention, a lap electrode layer electrically connected to the Micro-LED chip is further disposed above the touch sensor layer.
According to a preferred embodiment of the present invention, the touch layer includes a transmitting electrode layer and a receiving electrode layer disposed in a different layer in a crossing manner, the transmitting electrode layer is electrically connected to one touch trace, and the receiving electrode layer is electrically connected to the other touch trace.
According to a preferred embodiment of the invention, the emitter electrode layer comprises emitter electrodes arranged in a longitudinal array, the receiver electrode layer comprises receiver electrodes arranged in a transverse array, and the emitter electrodes and the receiver electrodes are electrically connected at different layer intersections.
According to a preferred embodiment of the present invention, the bending region of the touch integrated Micro-LED display panel further includes a flexible circuit board and the driving control chip, and the touch trace is electrically connected with the driving control chip through the flexible circuit board; or, the touch trace is directly and electrically connected with the driving control chip.
According to a preferred embodiment of the present invention, the projection of the touch trace on the touch integrated Micro-LED display panel does not overlap with the light emitting point of the Micro-LED chip, and the touch trace includes a single film layer of silver, copper, aluminum, molybdenum, titanium or a combined film layer of multiple materials.
According to a preferred embodiment of the present invention, a protection layer is further disposed on the surface of the overlap electrode layer, an opening is disposed at a position of the protection layer corresponding to the Micro-LED chip, and pins of the Micro-LED chip are filled in the opening and electrically connected to the overlap electrode layer.
According to a preferred embodiment of the present invention, the driving control chip is a TDDI touch and display integrated driver.
The invention has the beneficial effects that: the embodiment of the invention provides a touch integrated Micro-LED display panel, which comprises an array substrate and a Micro-LED chip positioned on the array substrate; the touch layer is arranged in the array substrate and is prepared from the same layer as the metal layer of the thin film transistor in the array substrate, wherein the touch layer and the display driving wiring of the array substrate are connected with the same driving control chip, and the touch layer is arranged inside the array substrate, so that the thickness and the manufacturing cost of the display panel can be effectively reduced, and the use comfort is improved.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a touch display panel in the prior art.
Fig. 2 is a schematic structural diagram of a touch integrated Micro-LED display panel according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of another structure of a touch integrated Micro-LED display panel according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a film structure of a touch integrated Micro-LED display panel according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a self-contained touch structure of a touch integrated Micro-LED display panel according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of another self-capacitive touch structure of a touch integrated Micro-LED display panel according to an embodiment of the invention.
Fig. 7 is a schematic diagram of a mutual capacitive touch structure of a touch integrated Micro-LED display panel according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of another capacitive touch structure of a touch integrated Micro-LED display panel according to an embodiment of the invention.
Fig. 9 and 10 are schematic timing diagrams of a touch integrated Micro-LED display panel according to an embodiment of the invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which 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 ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the invention and is not limiting of the invention. In the drawings, like elements are denoted by the same reference numerals, and broken lines in the drawings indicate that they are not present in the structure, and only the shape and position of the structure are described.
As shown in fig. 1, the conventional Touch display panel is formed by stacking a display panel 10 and a Touch panel 20, the display panel 10 adopts a driving module 11, the Touch panel 20 adopts a circuit board 21 and a Touch chip 22 attached to the circuit board 21, and the two sets of independent driving modules are adopted, so that dense display driving signal lines and Touch wiring are distributed on the Touch display panel formed by stacking, and in addition, the conventional Micro-LED chips are small in size, each Micro-LED chip is independently driven, the required driving chips and metal signal lines are denser than the signal lines in the OLED panel, and if DOT Touch technology is adopted, the signal lines of the Micro-LED chips are easy to generate signal crosstalk with the signal lines of the capacitive Touch layer, and in addition, the conventional OLED DOT Touch technology is not suitable for the Micro-LED display panel any more, and the conventional Touch screen is adopted, so that the cost is increased, the thickness is increased, and the use comfort is reduced. Aiming at the technical problems, the touch control function is integrated in the driving circuit layer of the Micro-LED display panel, so that the defect is overcome.
Fig. 2 and fig. 3 illustrate two touch signal transmission modes of the touch integrated Micro-LED display panel 100 according to the present invention, and the touch detection method is simple, so that the manufacturing cost of the touch display panel is reduced, and the requirement of light and thin flexible touch panel can be satisfied. As shown in fig. 2, an embodiment of the present invention provides a schematic structural diagram of a touch integrated Micro-LED display panel 100. The touch integrated Micro-LED display panel 100 adopts a flexible circuit board 1001 and a driving control chip 1002 to transmit driving signals, the driving control chip 1002 is attached to the flexible circuit board 1001, the driving control chip 1002 comprises display driving signals and touch driving signals, and the display driving signals at least comprise grid driving signals, electrostatic protection circuit signals and source driving signals. The driving control chip 1002 outputs display driving signals and touch driving signals, the display driving signals and the touch driving signals are transmitted to the touch integrated Micro-LED display panel 100 through the flexible circuit board 1001, and touch driving signals fed back by the Micro-LED display panel are also transmitted to the driving control chip 1002 through the flexible circuit board 1001. The driving control chip 1002 of the present embodiment is preferably a TDDI touch and display integrated driver. As shown in fig. 3, the touch integrated Micro-LED display panel 100 adopts a flexible circuit board 1001 and a driving control chip 1002 to transmit driving signals, the driving control chip 1002 and the flexible circuit board 1001 are separately arranged, the driving control chip 1002 includes a display driving signal and a touch driving signal, and the display driving signal includes at least a gate driving signal, an electrostatic protection circuit signal and a source driving signal. The driving control chip 1002 outputs a display driving signal and a touch driving signal to be transferred to the touch integrated Micro-LED display panel 100 through the flexible circuit board 1001. The touch driving signal fed back by the Micro-LED display panel is directly transmitted to the driving control chip 1002 without passing through the flexible circuit board 1001. The driving control chip 1002 of the present embodiment is also preferably a TDDI touch and display integrated driver.
As shown in fig. 4, an embodiment of the present invention provides a schematic structural diagram of a touch integrated Micro-LED display panel 100. The touch integrated Micro-LED display panel 100 includes an array substrate, and a Micro-LED chip 118 located on the array substrate; the array substrate is internally provided with a touch layer, the touch layer and a metal layer of the thin film transistor substrate in the array substrate are prepared in the same layer, and the touch layer and a display driving wiring of the array substrate are connected with the same driving control chip.
The touch layer 112 includes a touch sensor layer 1122 and the touch trace layer 1121 electrically connected to the touch sensor layer 1122, wherein the array substrate at least includes a substrate 101, an active layer 103 disposed on the substrate 101, a gate disposed on the active layer 103, a source/drain layer disposed on the gate, the touch trace layer 1121 disposed on the source/drain layer, and the touch sensor layer 1122 disposed on the touch trace layer 1121. The projection of the touch trace in the touch sensor layer 1122 on the touch integrated Micro-LED display panel 100 does not overlap with the light emitting point of the Micro-LED chip 118, and the touch trace includes a single or multiple film layers of silver, copper, aluminum, molybdenum, and titanium. In this embodiment, the touch layer 112 is disposed inside the array substrate, so that the thickness and the manufacturing cost of the display panel can be effectively reduced, and the use comfort can be improved.
Specifically, the substrate 101 of this embodiment includes a first flexible layer, a first water-resistant layer, a second flexible layer, and a second water-resistant layer that are stacked, where the first flexible layer and the second flexible layer are both made of a transparent PI material, and the first water-resistant layer and the second water-resistant layer are both made of silicon dioxide or silicon nitride films. The buffer layer 102 is prepared on the surface of the substrate 101, and the buffer layer 102 is a silicon oxide film, a silicon nitride film, or a composite film formed by alternately laminating a silicon oxide film and a silicon nitride film. The active layer 103 is prepared on the surface of the buffer layer 102, the material of the active layer 103 is one or more materials of indium gallium zinc oxide, indium zinc tin oxide and indium gallium zinc tin oxide, the first gate 105 is prepared on the active layer 103, the second gate 106 is prepared on the first gate 105, the materials of the first gate 105 and the second gate 106 are metal materials such as copper (Cu), aluminum (Al), titanium (Ti), tantalum (Ta), tungsten (W), molybdenum (Mo), chromium (Cr) and the like, the interlayer insulating layer 104 is prepared on the surface of the buffer layer 102, the interlayer insulating layer 104 is generally an insulating polymer flexible material, the interlayer insulating layer 104 covers the active layer 103, the first gate 105 and the second gate 106, the source 107, the drain 108 and the first planarization layer 109 covering the source 107 and the drain 108 are prepared on the interlayer insulating layer 104.
A touch trace layer 1121 and a first metal layer 111 electrically connected to the drain electrode 108 are prepared on the first planarization layer 109, a second planarization layer 113 is prepared on the first metal layer 111 and the touch trace layer 1121, a touch sensor layer 1122 electrically connected to the touch trace layer 1121 and a second metal layer 114 electrically connected to the first metal layer 111 are prepared on the second planarization layer 113, a passivation layer 115 is prepared on the touch sensor layer 1122 and the second metal layer 114, a lap electrode layer 116 is prepared on the passivation layer 115, a protective layer 117 is prepared on the lap electrode layer 116, openings are provided at positions of the protective layer 117 corresponding to the Micro-LED chip 118, and pins 1181 and 1182 of the Micro-LED chip 118 are filled in the openings and are electrically connected to positive potential output terminals 1161 and negative potential output terminals 1162 in the lap electrode layer 116, respectively. The positive potential output terminal 1161 is electrically connected to the drain electrode 108 through the second metal layer 114 and the first metal layer 111, and the negative potential output terminal 1162 is electrically connected to a negative electrode of an external power source. The touch sensor layer 1122 in other embodiments may be disposed in the same layer as the metal film layer of the thin film transistor, and is not limited to the same layer as the second metal layer 114.
The invention adopts two modes of self-contained touch integrated Micro-LED display design and mutual-contained touch integrated Micro-LED display design. The detailed self-contained touch integrated Micro-LED display design is as follows:
as shown in fig. 4 and fig. 5, the touch sensor layer 1122 is preferably a single-layer sensing capacitor structure. The touch sensor layer 1122 is divided into a plurality of touch units 1124 along the longitudinal direction and the transverse direction, and each touch unit 1124 is electrically connected to one touch trace 1123. The touch unit 1124 of this embodiment is completed by the driving control chip 1002 transmitting signals and the driving control chip 1002 receiving signals, the size of the touch unit 1124 is determined by the size of the display area of the display panel, and the touch trace 1123 guides the signals of the touch unit 1124 of the display area to the driving control chip 1002 to form a channel for sensing the variation of the capacitance. The touch-control wiring connects the touch-control unit 1124 connection terminals of the display area through the via holes, and the positions of the via holes on the connection terminals of different touch-control units 1124 are different, so that signals of the connection terminals of different touch-control units 1124 are respectively transmitted. When a finger touches or presses the touch unit 1124, the touch unit 1124 is polarized due to deformation, so that the capacitance between the finger and the sensing electrode layer changes, and the touch sensing signal generated by the touch unit 1124 changes.
The m×n touch units 1124 in the touch sensor layer 1122 are named sequentially, where the first row of sensing capacitor units, line 1-1, line 1-2, …, line1-n, the second row of sensing capacitor units, line 2-1, line 2-2, …, line2-n, …, the m-th row of sensing capacitor units, line m-1, line m-2, …, and line em-n; similarly, the first row of sensing capacitor cells line 1-1, line 2-1, …, line-1, the second row of sensing capacitor cells line 1-2, line 2-2, …, line3-2, …, line-2, …, the nth row of sensing capacitor cells line1-n, line2-n, …, line m-n. Each touch unit 1124 is connected to one touch trace 1023, and as long as the amount of charge on any one touch unit 1124 changes, the touch trace 1023 detects a change in current/voltage/capacitance, and transmits the changed current/voltage/capacitance signal to the flexible circuit board 1001, and then to the control chip 1002, so as to determine the touch position.
As shown in fig. 4 and fig. 6, the touch integrated Micro-LED display panel 100 of the present embodiment has a structure similar to that of fig. 5, and has a driving mode different from that of the touch integrated Micro-LED display panel of the present embodiment, each touch unit 1124 is connected to one touch trace 1123, and as long as the amount of charge on any one touch unit 1124 changes, the touch trace 1023 detects the change of current/voltage/capacitance, and directly transmits the change current/voltage/capacitance signal to the driving control chip 1002, so as to determine the touch position.
The invention adopts a mode of mutual capacitance type touch integrated Micro-LED display design. The detailed mutual capacitance type touch integrated Micro-LED display design is as follows:
as shown in fig. 7, the touch layer 112 in this embodiment includes a transmitting electrode layer and a receiving electrode layer disposed in a different layer and intersecting each other, the transmitting electrode layer is electrically connected to one touch trace 1127, and the receiving electrode layer is electrically connected to the other touch trace 1128. The emitter electrode layer comprises emitter electrodes 1125 arranged along a longitudinal array, the receiver electrode layer comprises receiver electrodes 1126 arranged along a transverse array, the emitter electrodes 1125 and the receiver electrodes 1126 are electrically connected at different-layer crossing points, the different-layer crossing points are touch units, all emitter electrodes 1125 are electrically connected with the same touch wire 1127, and all receiver electrodes 1126 are electrically connected with the same touch wire 1128. The frame area of the touch integrated Micro-LED display panel further comprises a flexible circuit board 1011 and a control chip 1002 attached to the flexible circuit board 1001, and the touch trace 1127 and the touch trace 1128 are electrically connected with the control chip 1002 through the flexible circuit board 1001.
The emission electrodes 1125 of the present embodiment are arranged laterally to form an X1-row emission electrode 1125, an X2-row emission electrode 1125, an X3-row emission electrode 1125, …, and an Xm-row emission electrode 1125; the receiving electrodes 1126 are longitudinally arranged to form Y1-column receiving electrodes 1126, Y2-column receiving electrodes 1126, Y3-column receiving electrodes 1126, …, yn-column receiving electrodes 1126; for example, for detecting a touch position, an overlapping position corresponding to the X2 row transmitting electrode 1125/Y2 column receiving electrode 1126 where the touch sensing signal changes is the touch position; for detection of touch pressure, the touch pressure at the position corresponding to the Y2 column receiving electrode 1126 where the touch sensing signal variation amount is large.
As shown in fig. 8, the touch integrated Micro-LED display panel 100 of the present embodiment has a similar structure to that of fig. 7, and has a different driving mode, in which all the transmitting electrodes 1125 are electrically connected to the same touch trace 1127, and all the receiving electrodes 1126 are electrically connected to the same touch trace 1128. The frame area of the touch integrated Micro-LED display panel further comprises a flexible circuit board 1011 and a control chip 1002, a touch trace 1127, and a touch trace 1128 directly electrically connected to the control chip 1002.
The invention provides a control time sequence design schematic diagram of a novel touch integrated Micro-LED display panel. As shown in fig. 9, a normal frame includes a display time and a blank time, and as shown in fig. 10, a frame of the present invention includes a display time and a touch time, and the display and the touch are time-division controlled.
In summary, although the present invention has been described in terms of the preferred embodiments, the above-mentioned embodiments are not intended to limit the invention, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention, so that the scope of the invention is defined by the appended claims.
Claims (9)
1. The touch integrated Micro-LED display panel is characterized by comprising an array substrate and a Micro-LED chip positioned on the array substrate;
the array substrate is internally provided with a touch layer, the touch layer comprises a touch sensor layer and a touch wiring layer electrically connected with the touch sensor layer, the touch layer and a metal layer of a thin film transistor in the array substrate are prepared in the same layer, wherein the touch layer and a display driving wiring of the array substrate are connected with the same driving control chip, and the array substrate at least comprises a substrate, an active layer positioned on the substrate, a grid positioned on the active layer, a source/drain layer positioned on the grid, a touch wiring layer positioned on the source/drain layer and a touch sensor layer positioned on the touch wiring layer.
2. The touch-integrated Micro-LED display panel of claim 1, wherein the touch sensor layer is divided into a plurality of touch units along a transverse direction and a longitudinal direction, and each touch unit is electrically connected with one touch trace independently.
3. The touch-integrated Micro-LED display panel of claim 1, wherein a landing electrode layer electrically connected to the Micro-LED chip is further disposed above the touch sensor layer.
4. The touch integrated Micro-LED display panel of claim 1, wherein the touch layer comprises a transmitting electrode layer and a receiving electrode layer which are arranged in a different layer in a crossing manner, the transmitting electrode layer is electrically connected with one touch trace, and the receiving electrode layer is electrically connected with the other touch trace.
5. The touch integrated Micro-LED display panel of claim 4, wherein the emitter electrode layer comprises emitter electrodes arranged in a longitudinal array and the receiver electrode layer comprises receiver electrodes arranged in a lateral array, the emitter electrodes and the receiver electrodes being electrically connected at different layer intersections.
6. The touch-integrated Micro-LED display panel according to claim 2 or 4, wherein the bending region of the touch-integrated Micro-LED display panel further comprises a flexible circuit board and the driving control chip, and the touch trace is electrically connected with the driving control chip through the flexible circuit board; or, the touch trace is directly and electrically connected with the driving control chip.
7. The touch-integrated Micro-LED display panel of claim 2 or 4, wherein the projection of the touch trace on the touch-integrated Micro-LED display panel does not overlap with the light emitting point of the Micro-LED chip, and the touch trace comprises a single film layer of silver, copper, aluminum, molybdenum, titanium or a combined film layer of multiple materials.
8. The touch integrated Micro-LED display panel according to claim 3, wherein a protective layer is further arranged on the surface of the overlap electrode layer, an opening is arranged at a position of the protective layer corresponding to the Micro-LED chip, and pins of the Micro-LED chip are filled in the opening and are electrically connected with the overlap electrode layer.
9. The touch-integrated Micro-LED display panel of claim 1, wherein the drive control chip is a TDDI touch and display integrated driver.
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| CN202111336879.3A CN114078401B (en) | 2021-11-12 | 2021-11-12 | Touch integrated Micro-LED display panel |
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| CN202111336879.3A CN114078401B (en) | 2021-11-12 | 2021-11-12 | Touch integrated Micro-LED display panel |
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| CN118451489A (en) * | 2022-12-02 | 2024-08-06 | 西安青松光电技术有限公司 | LED display device, control method, chip, medium and program product |
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| KR101319346B1 (en) * | 2009-09-15 | 2013-10-16 | 엘지디스플레이 주식회사 | Embedded Photo-Sensing type Touch Panel in Liquid Crystal Display Device and Method for Driving the Same |
| CN104035615B (en) * | 2014-05-20 | 2016-03-02 | 京东方科技集团股份有限公司 | A kind of touch display panel and display device |
| CN104698702B (en) * | 2015-04-01 | 2017-09-15 | 上海天马微电子有限公司 | Array substrate, display device and driving method |
| CN104865726B (en) * | 2015-06-04 | 2018-08-14 | 上海天马微电子有限公司 | Array substrate, display panel, display device and preparation method |
| CN104900658B (en) * | 2015-06-15 | 2018-07-27 | 京东方科技集团股份有限公司 | Touch panel and preparation method thereof, touch control display apparatus |
| CN105468202B (en) * | 2016-01-29 | 2018-09-14 | 上海中航光电子有限公司 | Array substrate, touch-control display panel and touch control display apparatus |
| CN106876330A (en) * | 2017-02-28 | 2017-06-20 | 上海中航光电子有限公司 | A kind of array base palte and preparation method thereof, display panel and display device |
| CN108873421B (en) * | 2018-08-13 | 2021-08-24 | 武汉华星光电技术有限公司 | Liquid crystal display device and preparation method thereof |
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