OLED touch control display device and manufacturing method thereof, and method for manufacturing touch control screen

The present invention provides an OLED touch control display device, a method for manufacturing an OLED touch control display device, and a method for manufacturing a touch control screen. The OLED touch control display device comprises a substrate having a first surface and a second surface arranged opposite the first surface, a touch control screen arranged on the first surface, defining a display area arranged on the second surface, a touch control interface circuit connected to the touch control screen, defining an interface binding area connected to the display area, and defining via holes penetrating the first surface and the second surface. The touch control interface circuit and the interface binding area are arranged on the first surface or the second surface. The touch control screen includes touch control pattern areas arranged in a matrix and connected together via the via holes.

FIELD OF THE TECHNICAL

The present disclosure relates to display technology field, and particularly to an OLED touch display device, and further relates to a method for manufacturing an OLED touch display device and a method for manufacturing a touch control screen.

BACKGROUND

Presently, the existing organic light-emitting diode (OLED) touch control display screens are mostly applied in terminal devices for human-machine interaction, for example, mobile phones, tablet computers, automatic selling machines, information query machines, and so on. Generally, the OLED touch control display screen includes an OLED panel having image display function, a touch control panel attached to the OLED panel and configured to realize touch control function, a display driving circuit arranged on the OLED panel to drive the OLED panel to display image, and a touch control driving circuit arranged on the touch control panel to cause the touch panel to have the touch control function. The OLED panel and the touch panel are attached together by optical adhesive or other attachment manners. However, for such an OLED touch control display screen, the process and technology are complex, and furthermore, the thickness is great, the cost is high, and the structure is redundant.

SUMMARY

The purpose of the present invention is to provide an OLED touch control display device, which realizes touch control and display function by arranging via holes in the same substrate. The present invention aims to solve the problem of that in the present technology, the thickness of the OLED touch control display device is great and the structure of the OLED touch control display device is redundant.

The present invention is realized by providing an OLED touch control display device which includes: a substrate comprising a first surface and a second surface arranged opposite the first surface, a touch control screen arranged on the first surface, defining a display area on the second surface, a touch control interface circuit connected to the touch control screen, defining an interface binding area connected to the display area, and defining a plurality of via holes penetrating the first surface and the second surface, wherein the touch control interface circuit and the interface binding area are arranged on the first surface or the second surface through the via holes, the touch control screen comprises touch a plurality of control pattern areas arranged in a matrix and connected together through the via holes.

Furthermore, the touch control pattern areas comprise a plurality of row touch control pattern units, a plurality of column touch control pattern units intersecting with the row touch control pattern units, first connection lines each connected between two adjacent row touch control pattern units, and second connection lines each connected between two adjacent column touch control pattern units; the via hole comprises a first via hole and a second via hole, and the first via hole and the second via hole are arranged between two adjacent column touch control pattern units; the second connection line comprises a first connection segment arranged on the first surface and electrically connected between the first via hole and the column touch control pattern unit adjacent to the first via hole, a second connection segment arranged on the first surface and electrically connected between the second via hole and the column touch control pattern unit adjacent to the second via hole, a first conductive line arranged on the second surface and electrically connected to the first via hole and the second via hole, and the first conductive line intersects with the first connection line.

Furthermore, the first connection line is arranged on the first surface and connected between two adjacent row touch control pattern units, the first connection segment and the second connection segment are arranged at opposite sides of the first connection line, and the projection of the first conductive line on the first surface intersects with the first connection line.

Preferably, opposite ends of the first conductive line are electrically connected to the first via hole and the second via hole respectively, the first via hole and the second via hole are connected in serial among the first connection segment, the first conductive line, and the second connection segment.

Preferably, the first conductive line is a touch control signal line arranged on the second surface, and electrically connected to the first via hole and the second via hole of each column touch control pattern unit in the same column.

Optionally, a plurality of pixel units arranged in an array and display driving circuits each corresponding to one pixel unit and configured to light the corresponding pixel unit up are arranged on the second surface, each display driving circuit comprises a source, and the first conductive line is a multiplex touch control signal line and electrically connected to the source of the display driving circuit of the corresponding column.

Furthermore, the via hole further comprises a third via hole and a fourth via hole, and the third via hole and the fourth via hole are arranged at two sides of two adjacent row touch control pattern units.

The first connection line comprises a third connection segment arranged on the first surface and electrically connected between the third via hole and the row touch control pattern unit adjacent to the third via hole, a fourth connection segment arranged on the first surface and electrically connected between the fourth via hole and the row touch control pattern unit adjacent to the fourth via hole, and a second conductive line arranged on the second surface and electrically connected to the third via hole and the fourth via hole.

The second conductive line is electrically connected to the third via hole and the fourth via hole of each row touch control pattern unit in the same row, the first conductive line is electrically connected to the first via hole and the second via hole of each column touch control pattern unit in the same column, and the first conductive line intersects with the second conductive line on the second surface.

Furthermore, the touch control screen further comprises a touch control interface circuit arranged on the first surface or the second surface, the touch control interface circuit comprises a driving interface and a test interface, the via hole is electrically connected to the driving interface and the test interface through the second connection line, or the via hole is electrically connected to the driving interface and the test interface through the first connection line and the second connection line.

Furthermore, the column touch control pattern units and the row touch control pattern units are quadrilateral shaped, pentagon shaped, hexagon shaped, circle shaped, or any other shape.

Furthermore, the substrate is a glass substrate or flexible substrate.

Furthermore, the display area comprises a plurality of pixel units arranged in an array and display driving circuits each corresponding to one pixel unit and configured to light the corresponding pixel unit up.

Furthermore, the OLED touch control display device further comprises a touch control interface circuit connected to the touch control screen and an interface binding area connected to the display area, and the touch control interface circuit and the interface binding area are arranged on the first surface or the second surface through the via holes.

Furthermore, the pixel units comprise a plurality of groups of row pixel units and column pixel units, and the plurality of groups of row pixel units and column pixel units are arranged in an array, the row pixel units comprise a plurality of first pixel units spaced at equal distance, the column pixel units comprise a plurality of second pixel units spaced at equal distance; each first pixel unit and each second pixel unit are respectively controlled by the corresponding display driving circuits.

The present invention further provides a method for manufacturing a touch control screen which includes the following steps.

A substrate is provided, wherein the substrate comprises a first surface and a second surface arranged opposite the first surface, the substrate defines a plurality of via holes penetrating the first surface and the second surface, and the via hole comprises a first via hole and a second via hole.

A plurality of row touch control pattern units and column touch control pattern units are formed, wherein the plurality of row touch control pattern units arranged in rows are formed on the first surface, and the plurality of column touch control pattern units arranged in columns and intersecting with the row touch control pattern units are formed on the first surface.

A plurality of first connection lines are formed, wherein the first connection lines each connected between two adjacent row touch control pattern units are formed on the first surface.

A plurality of second connection lines are formed, wherein a first connection segment electrically connected between the first via hole and the column touch control pattern unit adjacent to the first via hole is formed on the first surface, and a second connection segment electrically connected between the second via hole and the column touch control pattern unit adjacent to the second via hole is formed on the first surface, a first conductive line electrically connected to the first via hole and the second via hole is formed on the second surface, the projection of the first conductive line on the first surface and the first connection segment are collinear; the first connection line intersects with the first conductive line on different surfaces between the first via hole and the second via hole.

Furthermore, in the step of forming the second connection line, opposite ends of the first conductive line are electrically connected to the first via hole and the second via hole respectively.

Furthermore, in the step of forming the second connection line, the first conductive line is electrically connected to the first via hole and the second via hole of each column touch control pattern unit in the same column.

Furthermore, in the step of forming the second connection line, the first conductive line is electrically connected to a source of the display driving circuit formed on the second surface, and the display driving circuit is electrically connected to the pixel unit formed on the second surface and configured to light the pixel unit up.

The present invention further provides a method for manufacturing a touch control screen which includes the following steps.

A substrate is provided, wherein the substrate comprises a first surface and a second surface arranged opposite the first surface, the substrate defines via holes penetrating the first surface and the second surface, the via hole comprises a first via hole, a second via hole, a third via hole, and a fourth via hole, and the radial connection line of the first via hole and the second via hole intersects with the radial connection line of the third via hole and the fourth via hole.

A plurality of row touch control pattern units and a plurality of column touch control pattern units are formed, wherein the plurality of row touch control pattern units arranged in rows are formed on the first surface, and the plurality of column touch control pattern units arranged in columns and intersecting with the row touch control pattern units are formed on the first surface.

A plurality of first connection lines are formed, wherein a third connection segment electrically connected between the third via hole and the row touch control pattern unit adjacent to the third via hole is formed on the first surface, and a fourth connection segment electrically connected between the fourth via hole and the row touch control pattern unit adjacent to the fourth via hole is formed on the first surface, and a second conductive line electrically connected to each third via hole and fourth via hole of the same row is formed on the second surface.

A plurality of second connection lines are formed, wherein a first connection segment electrically connected between the first via hole and the column touch control pattern unit adjacent to the first via hole is formed on the first surface, and a second connection segment electrically connected between the second via hole and the column touch control pattern unit adjacent to the second via hole is formed on the first surface, a first conductive line electrically connected to the first via hole and the second via hole is formed on the second surface; the projection of the first conductive line on the first surface and the first connection segment are collinear; the second conductive line intersects with the first conductive line on the second surface.

The present invention further provides a method for manufacturing an OLED touch control display device which includes the following steps.

A substrate is provided, wherein the substrate comprises a first surface and a second surface arranged opposite the first surface.

A touch control screen is manufactured, wherein the method for manufacturing the touch control screen of any of the above is employed to manufacture the touch control screen.

A display area is formed, wherein the display area is formed on the second surface, and the display area comprises a plurality of pixel units arranged in an array and display driving circuits each corresponding to one pixel unit and configured to light the corresponding pixel unit up.

Furthermore, the method for manufacturing the OLED touch control display device further comprises a step of manufacturing interfaces, a touch control interface circuit connected to the touch control screen and an interface binding area connected to the display area are formed on the substrate, the touch control interface circuit and the interface binding area are arranged on the first surface or the second surface of the substrate via the via holes.

In the step of manufacturing the display area, the pixel units comprise a plurality of groups of row pixel units and column pixel units, and the plurality of groups of row pixel units and column pixel units are arranged in an array, the row pixel units comprise a plurality of first pixel units spaced at equal distance, and the column pixel units comprise a plurality of second pixel units spaced at equal distance; each first pixel unit and each second pixel unit are respectively controlled by the corresponding display driving circuits.

In the OLED touch control display device of the present invention, the touch control interface circuit and the interface binding area are arranged on the first surface or second surface of the substrate via the via holes, that is using single-sided IC or FPC coating, process steps can be reduced, which results in reduction of cost. The touch control screen and the display area are respectively arranged on two opposite sides of the same substrate, and the touch control pattern areas are connected together by the via holes, thus the structure is simple, the thickness of the OLED touch control display device can be effectively reduced, and the production cost is reduced.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

To make the purposes, technical solutions, and advantages of the present disclosure be more clearly, the present disclosure will be further described in detail below in combination with the accompanying drawings and embodiments. It should be understood that the detailed embodiments described herein are only used to illustrate the present disclosure, and not used to limit the present disclosure.

Referring toFIGS. 1 and 2, an OLED touch control display device includes a substrate1having a first surface11and a second surface12arranged opposite the first surface11, a touch control screen arranged on the first surface11, a display area4arranged on the second surface12, a touch interface circuit51connected to the touch control screen, and an interface binding area52connected to the display area4. The device is provided with a number of via holes3penetrating the first surface11and the second surface12, and the via holes3are used to arrange the touch interface circuit51and the interface binding area52on the first surface11or the second surface12of the substrate1. The touch control screen includes a number of touch control pattern areas2which are arranged in rows and columns and are connected together through the via holes3. It can be understood that as the touch control interface circuit51and the interface binding area52are arranged on the first surface11or second surface12of the substrate1through the via holes3, that is, through single-sided IC or FPC coating, process steps can be reduced, which results in reduction of cost. Preferably, the touch control interface circuit51can include a driving interface and a testing interface, and can also include other interfaces. In the OLED touch control display device, by arranging the display area4and the touch control pattern areas2on the second surface12and the first surface11of the substrate1, and connecting the touch control pattern areas2together through the via holes3, the product thickness is reduced, and the flexibility performance and the folding performance of the OLED touch control display device can be effectively enhanced.

Furthermore, the touch control pattern areas2include a number of row touch control pattern units21, a number of column touch control pattern units22intersecting with the row touch control pattern units21, first connection lines23each connected between two adjacent row touch control pattern units21, and second connection lines24each connected between two adjacent column touch control pattern units22. The via hole3include a first via hole31and a second via hole32arranged between two adjacent column touch control pattern units22. The second connection line24includes a first connection segment241arranged on the first surface11and electrically connected between the first via hole31and the column touch control pattern unit22adjacent to the first via hole31, a second connection segment242arranged on the first surface11and electrically connected between the second via hole32and the column touch control pattern unit22adjacent to the second via hole32, and a first conductive line243arranged on the second surface12and electrically connected to the first via hole31and the second via hole32. The first conductive line243intersects with the first connection line23. It can be understood that the first via hole31and the second via hole32are filled with conductive medium. By connecting two adjacent column touch control pattern units22using the first connection segment241, the first via hole31, the first conductive line243, the second via hole32, and the second connection segment242, that is, by disconnecting the column touch control pattern units22, and by intersecting the first conductive line243with the first connection line23to form a capacitor, and by connecting the first conductive line243and the column touch control pattern units22electrically using the first via hole31and the second via hole32, when the screen is touched, the capacity between the row touch control pattern unit21and the column touch control pattern unit22changes due to coupling between the row touch control pattern unit21and the column touch control pattern unit22near the touch point, thus positions of all the touch points can be determined by determining the capacity of intersection points of all the row touch control pattern units21and all the column touch control pattern units22using capacity detection. Optionally, the number of the first via hole31and the second via hole32can be one, two, or more than two, and can be set according to actual use. The first via hole31, the second via hole32, and each column touch control pattern unit22are arranged on the same straight line, the projections of the first connection segment241, the second connection segment242, and the first conductive line243on the first surface11are collinear, or the first connection segment241and the second connection segment242are collinear. Preferably, the first connection line23and the second connection line24can be made of conductive metal such as molybdenum. In the OLED touch display device provided by embodiments of the present invention, by setting the via hole3to cause the first conductive line243and the first connection line23arranged on the second surface12of the substrate1to intersect with each other, the row touch control pattern unit21and the column touch control pattern unit22respectively connected to the first conductive line243and the first connection line23are mutually coupled on the first surface11of the substrate1, which results in simple structure, thereby the thickness of the OLED touch control display device can be effectively reduced, and the production cost is reduced.

Referring toFIG. 2, furthermore, the first connection line23is arranged on the first surface11and connected between two adjacent row touch pattern units21. The first connection segment241and the second connection segment242are respectively arranged at opposite sides of the first connection line23, and the projection of the first conductive line243on the first surface11intersects with the first connection line23. It can be understood that the first connection line23is arranged on the first surface11, and the first conductive line243is arranged on the second surface12. By causing the first conductive line243and the first connection line23to intersect with each other, each row touch control pattern unit21and the corresponding column touch control pattern unit22are mutually coupled, and each row touch control pattern unit21and the corresponding column touch control pattern unit22are arranged on the first surface11. Comparing to the present technology of arranging crossover connection lines on the same surface and arranging insulation layers between the connection lines, by arranging the first connection line23and the first conductive line243on opposite surfaces of the substrate1respectively and by connecting the first conductive line243to the column touch control pattern unit22via the via hole3, the thickness of the OLED touch control display device can be effectively reduced, which assists the product in meeting the requirement of thinness.

Referring toFIGS. 2-4, preferably, the first conductive line243is a conductive segment243a, and the opposite sides of the conductive segment243aare respectively electrically connected to the first via hole31and the second via hole32. The first via hole31and the second via hole32are connected among the first connection segment241, the conductive segment243a, and the second connection segment242in serial. It can be understood that adjacent column touch control pattern units22are connected together through the first via hole31, the second via hole32, and the conductive segment243aconnected between the first via hole31and the second via hole32. In use, by causing the conductive segment243aand the first connection line23connected between the row touch control pattern units21to intersect with each other on different surfaces of the substrate1, the row touch control pattern unit21and the column touch control pattern unit22are mutually coupled.

Referring toFIG. 2,FIG. 5, andFIG. 6, preferably, the first conductive line243is a touch control signal line243barranged on the second surface12, and electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit22in the same column. It can be understood that each column touch control pattern unit22includes the first via hole31and the second via hole32, and the first via hole31and the second via hole32penetrates the first surface11and the second surface12, and by arranging the touch control signal line243bconnected between the first via hole31and the second via hole32of each column touch control unit22on the second surface12, the touch control signal line243band the first connection line23of the corresponding row touch control pattern unit21intersect with each other on different surfaces, that is, each touch control pattern area2in the same column shares the same touch control signal line243b, which results in simple structure and simple process.

Referring toFIG. 2andFIG. 6, preferably, a number of pixel units41are arranged in an array on the second surface12and display driving circuits42each corresponding to one pixel unit41and used to light the corresponding pixel unit42up are arranged on the second surface12. Each display driving circuit42includes a source. The first conductive line243is a multiplex touch control signal line243cand electrically connected to the source S of the display driving circuit42in the corresponding column. It can be understood that the multiplex touch control signal243cis arranged on the second surface12and connected to the first via hole31and the second via hole32of each column touch control pattern units22, and the multiplex touch control signal line243cis further connected to the source S of each display driving circuit42. As the pixel units41and the display driving circuits42are arranged on the second surface12, the touch control pattern area2on the first surface11is connected to the pixel unit41on the second surface12using the multiplex touch control signal line243c, time-sharing multiplex of touch and display can be realized, the total number of lines can be reduced, and an OLED touch control display device having super narrow sides can be realized.

Referring toFIG. 7andFIG. 8, furthermore, the via hole3further includes a third via hole33and a fourth via hole34respectively arranged on two sides of two adjacent row touch control pattern units21. The first connection line23includes a third connection segment231arranged on the first surface11and electrically connected between the third via hole33and the row touch control pattern unit21adjacent to the third via hole33, a fourth connection segment232arranged on the first surface11and electrically connected between the fourth via hole34and the row touch control pattern unit21adjacent to the fourth via hole34, and the second conductive line233arranged on the second surface12and electrically connected to the third via hole33and the fourth via hole34. The second conductive line233is electrically connected to the third via hole33and the fourth via hole34of each row touch control pattern unit21in the same row. The first conductive line243dis electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit21in the same column. On the second surface12, the first conductive line243dintersects with the second conductive line233. It can be understood that two adjacent row touch control pattern units21are arranged between the third via hole33and the fourth via hole34, that is, the third via hole33, two adjacent row touch control pattern units21, and the fourth via hole34are sequentially arranged, and the third via hole33, two adjacent row touch control pattern units21, and the fourth via hole34are arranged in the same straight line. The row touch control pattern units21are disconnected from each other, that is, within the touch control pattern area2the row touch control pattern unit21and the column touch control pattern unit22are independent of each other on the first surface11. The third via hole33and the fourth via hole34are filled with conductive medium. The second conductive line233is arranged on the second surface12and is electrically connected to the third via hole33and the fourth via hole34of each row touch control pattern unit21, and the first conductive line243dis electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit22in the same column, thus, on the second surface12, the first conductive line243dand the second conductive line233intersect with each other, which causes the row touch control pattern unit21and the column touch control pattern unit22to be mutually coupled, and the row touch control pattern unit21and the column touch control pattern unit22are on the first surface11.

Referring toFIG. 2, furthermore, the touch control screen further includes a touch control interface circuit51arranged on the first surface11or the second surface12. The touch control interface circuit51includes a driving interface and a test interface (not shown). The third via hole3is electrically connected to the driving interface and the test interface through the second connection line24, or the via hole3is electrically connected to the driving interface and the test interface via the first connection line23and the second connection line24. It can be understood that the touch control interface circuit51can be arranged on the first surface11or the second surface12according to actual use. For the condition of that the first connection line23intersects with the second connection line24on different surfaces, the first via hole31and the second via hole32are electrically connected to the driving interface and the test interface through the first connection line23. For the condition of that the first connection line23intersects with the second connection line24on the second surface12, the third via hole33and the fourth via hole34are electrically connected to the driving interface and the test interface through the first connection line23, and the first via hole31and the second via hole32are electrically connected to the driving circuit and the test circuit through the second connection line24, and such a method of setting the driving circuit and the test interface assists in reducing process steps, which results in reduction of cost.

Referring toFIG. 2andFIG. 3, furthermore, the column touch control pattern unit22and the row touch control pattern unit21can be quadrilateral shaped, pentagon shaped, hexagon shaped, circle shaped, or any other shape. Preferably, the column touch control pattern unit22and the row touch control pattern unit21are rhombus shaped. In other embodiments, the column touch control pattern unit22and the row touch control pattern unit21can be other pattern, e.g., triangle shaped, oval shaped, or other shape.

Referring toFIGS. 1-8, furthermore, the display area4includes a number of pixel units41arranged in an array and a number of display driving circuits42each corresponding to one pixel unit41and configured for lighting the corresponding pixel unit41up. It can be understood that the touch control screen can the touch control screen structure described in any of the above embodiments, and the description of each above embodiment can be referred, which will not be repeated herein. Each display driving circuit42is electrically connected to a gate driving circuit, a source driving circuit, and a common voltage (SEL-VDD), and receives gate driving signals from the gate driving circuit, source driving signals from the source driving circuit, and SEL-VDD, and drives the corresponding pixel unit41to display image. Preferably, the display driving circuit42is an TFT-OLED source driving circuit. Optionally, the OLED touch control display device can further include an interface binding area52arranged on the second surface12and further arranged on a side of the display area4. The interface binding area52includes a driving IC and a FPC (not shown), and the driving IC and the FPC are electrically connected to output terminals of the display driving circuit42. The row touch control pattern units21and the column touch control pattern units22are connected together through the via holes3to form a touch control circuit. In the OLED touch control display device provided by the embodiments of the present invention, the display driving circuits42and the touch control interface circuit51are arranged on the first surface11or the second surface12of the substrate1through the via holes3, and are attached to the driving IC and the FPC by the single side attachment method, which reduces process steps and effectively reduce production cost. Preferably, the touch control interface circuit51can include the driving interface and the test interface, and can also include other interfaces. The OLED light-emission process is used, that is, the display layer formed by the pixel units41are arranged on the second surface12of the substrate1, and the touch player formed by the row touch control pattern units21and the column touch control pattern units22is arranged on the first surface11of the substrate1, that is, the touch player is arranged above the display layer, thus the best touch performance is provided.

Due to difference of setting manners of the first conductive line243and the first connection line23, the touch and display modes of the OLED touch control display device are different, and there are several manners described below.

Referring toFIG. 2andFIG. 3, manner1: the first connection line23is arranged on the first surface11and connected between two adjacent row touch control pattern units21, and two ends of the conductive line segment243aare respectively electrically connected to the first via hole31and the second via hole32, that is, the conductive line segment243ais connected to the row touch control pattern unit21and the column touch control pattern unit22arranged on the first surface11through the first via hole31, the second via hole32, and the conductive line segment243aarranged on the second surface12, so as to realize touch function. The conductive line segment243is arranged between two adjacent columns of the pixel units41, and spaced from the pixel units41, that is, the conductive line segment243ais separated from the pixel units41arranged on the second surface12in an array, thereby touch function and display function are separated and independent of each other.

Referring toFIG. 2andFIG. 4, manner2: the first connection line23is arranged on the first surface11and connected between two adjacent row touch control pattern units21, the first conductive line243is a touch control signal line243barranged on the second surface12, and electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit22in the same column, that is, the first conductive line243is connected to the row touch control pattern units21and the column touch control pattern units22arranged on the first surface11through the first via hole31, the second via hole32, and the touch control signal line243barranged on the second surface12, that is, the column touch control pattern units22in the same column share the same touch control signal line243bto realize touch function. The touch control signal line243bis arranged between two adjacent columns of the pixel units41, and spaced from the pixel units41arranged on the second surface12in an array, thereby touch function and display function are separated and independent of each other.

Referring toFIG. 2andFIG. 5, manner3: the first connection line23is arranged on the first surface11and connected between two adjacent row touch control pattern units21, and the first conductive line243is a multiplex touch control signal line243carranged on the second surface12, and electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit22in the same column, and electrically connected to the source S of the display driving circuit42, that is, the first conductive line243is connected to the first and second row touch control pattern units211,212and the first and second column touch control pattern units221,222through the first via hole31and the second via hole of the same column and the multiplex touch control signal line243carranged on the second surface12, that is, the column touch control pattern units22in the same column share the same multiplex touch control signal line243to realize touch control function. Furthermore, the multiplex touch control signal line243is arranged between two adjacent columns of the pixel units41and connected to the source S of each display driving circuit42, that is, the display driving circuit42is connected to the touch control interface circuit51through the first via hole31and the second via hole32to realize time division multiplex access (TDMA) of touch control and display.

Referring toFIG. 6andFIG. 7, manner4: different from manner2, the third via hole33and the fourth via hole34are further arranged on the substrate1, the third via hole33and the fourth via hole34are connected to the first connection line23′, and the connection manner of connecting the first connection line23′ is improved, that is, the first connection line23′ includes a third connection line231arranged on the first surface11and electrically connected between the first row touch control pattern unit211and the third via hole33, a fourth connection line232arranged on the first surface11and electrically connected between the second row touch control pattern unit212and the fourth via hole34, and a second conductive line233arranged on the second surface12and electrically connected to the third via hole33and the fourth via hole34. The row touch control pattern unit21and the column touch control pattern unit22are connected to the intersection point of the first conductive line243dand the second conductive line233through each via hole3to realize touch control function. The first conductive line243dis arranged between two adjacent rows of the pixel units41, and the first conductive line243dand the second conductive line233are separated from the pixel units41which are arranged in an array on the second surface12, thus touch function and display function are separated and independent of each other.

In the above four manners, the first conductive line243can be arranged among several columns of the pixel units41, for example, four columns, six columns, or other. Similarly, the second conductive line233can be arranged among several rows of the pixel units41, for example, four rows, six rows, or other. The positions of the first conductive line243and the second conductive line233are related to corresponding relationship between the touch control pattern area2and the pixel unit41.

Referring toFIGS. 2-6, furthermore, the pixel units41include a number of groups of row pixel units41and column pixel units41, and the row pixel units41and the column pixel units41are arranged in an array. The row pixel units41include a number of first pixel units41spaced at equal distance, and the column pixel units41include a number of second pixel units41spaced at equal distance. Each first pixel unit41and each second pixel unit41are respectively controlled by the corresponding display driving circuits42. It can be understood that each pixel unit41is lit up by the corresponding display driving circuit42. In the above manners, the same touch control pattern area2corresponds to at least one array of the pixel units41. The first conductive line243of the touch control pattern area2is arranged on the symmetric line of the array of the pixel units41. The direction of the symmetric line is the same as that of the column touch control pattern unit22.

Referring toFIGS. 1-5, the method for manufacturing the touch control screen includes the following steps.

A substrate1is provided. The substrate1includes a first surface11and a second surface12arranged opposite the first surface11. The substrate1defines a number of via holes3extending through the first surface11and the second surface12. The via hole3includes a first via hole31and a second via hole32. It can be understood that the number and positions of the first via holes31and the second via holes32can be set according to the number and positions of touch control pattern areas2. The first via hole31and the second via hole32are filled with conductive medium.

A number of row touch control pattern units21and column touch control pattern units22are formed. A number of row touch control pattern units21arranged in rows are formed on the first surface11, and a number of column touch control pattern units22arranged in columns and intersecting with the row touch control pattern units21are formed on the first surface11. It can be understood that the row touch control pattern unit21and the column touch control pattern unit22can be quadrangle shaped, pentagon shaped, hexagon shaped, or circle shaped. Preferably, the row touch control pattern unit21and the column touch control pattern unit22are rhombus shaped. In other embodiments, the row touch control pattern unit21and the column touch control pattern unit22can be other shapes, for example, triangle shaped, ellipse shaped, or other shapes.

A number of first connection lines23are formed. The first connection line23connected between two adjacent row touch control pattern units21is formed on the first surface11. It can be understood that the first connection line23is a metal conductive line, and is formed on the substrate1via the depositing, coating, or sputtering manner.

A number of second connection lines24are formed. A first connection segment241electrically connected between the first via hole31and the column touch control pattern unit22adjacent to the first via hole31is formed on the first surface11, and a second connection segment242electrically connected between the second via hole32and the column touch control pattern unit22adjacent to the second via hole32is formed on the first surface11. A first conductive line243electrically connected to the first via hole31and the second via hole32is formed on the second surface12. The projection of the first conductive line243on the first surface11and the first connection segment241are collinear. The first connection line23intersects with the first conductive line243on different surfaces between the first via hole31and the second via hole32. In can be understood that the first connection segment241and the second connection segment242are collinear and disconnected from each other. The central connection line of the column touch control pattern units22, the first connection segment241, and the second connection segment242are collinear. The first connection segment241and the second connection segment242are arranged between two adjacent column touch control pattern units222. The second connection line24is a metal conductive line, and is formed on the substrate1via the depositing, coating, or sputtering manner.

In the method of manufacturing the touch control screen provided by the embodiment of the present invention, the via hole3is defined on the substrate1, and the first conductive line243is formed on the second surface12to connect the first and second row touch control pattern unit212and the first and second column touch control pattern unit222, and the first and second row touch control pattern unit212and the first and second column touch control pattern unit222are arranged on the first surface11, thus the first conductive line243intersects with the first connection line23on the second surface12and the first surface11to realize touch control function.

Referring toFIG. 2andFIG. 3, furthermore, in the step of forming the second connection line24, the first conductive line243is a conductive line segment243aand its opposite ends are electrically connected between the first via hole31and the second via hole32respectively. It can be understood that the conductive line segment243ais arranged between the first via hole31and the second via hole, so as to be connected to the column touch control pattern unit22via the first via hole31and the second via hole32. The conductive line segment243aintersects with the first connection line23on the second surface12and the first surface11of the substrate1, so as to realize mutual coupling between the row touch control pattern unit21and the column touch control pattern unit22, and the row touch control pattern unit21and the column touch control pattern unit22are arranged on the first surface11, thus touch control function is realized.

Referring toFIG. 2andFIG. 4, furthermore, in the step of forming the second connection line24, the first conductive line243is a touch control signal line243b, and electrically connected to the first via hole31and the second via hole32of each column touch control pattern unit22in the same column. It can be understood that the first via hole31and the second via hole32of each column touch control pattern unit22in the same column share the same touch control signal line243b, and the process is simple. The touch control signal line243bintersects with the first connection line23of the corresponding row touch control pattern unit21, so as to realize mutual coupling between the row touch control pattern unit21and the column touch control pattern unit22, and the row touch control pattern unit21and the column touch control pattern unit22are arranged on the first surface11, thus touch control function is realized.

Referring toFIG. 2andFIG. 5, furthermore, in the step of forming the second connection line24, the first conductive line243is a multiplex touch control signal line243cand electrically connected to the source S of the display driving circuit42which is formed on the second surface12. The display driving circuit42is electrically connected to the pixel unit41formed on the second surface12and lights the pixel unit41up. It can be understood that the first via hole31and the second via hole32of each column touch control pattern unit22in the same column share the same multiplex touch control signal line243c, and the process is simple. The multiplex touch control signal line243cintersects with the first connection line23of the corresponding touch control pattern unit21, so as to realize mutual coupling between the row touch control pattern unit21and the column touch control pattern unit22, and the row touch control pattern unit21and the column touch control pattern unit22are arranged on the first surface11, thus touch control function is realized. Furthermore, the multiplex touch control signal line243cis further electrically connected to the source S of the display driving circuit42which is arranged on the second surface12, thus time division multiplex access (TDMA) of touch control and display is realized, and the total number of lines is reduced, which assists in designing an OLED touch control display device having super narrow sides.

Referring toFIG. 1,FIG. 6, andFIG. 7, the method for manufacturing the touch control screen provided by the embodiments of the present invention includes the following steps.

A substrate1is provided. The substrate1includes a first surface11and a second surface12arranged opposite the first surface11. The substrate1defines a number of via holes3extending through the first surface11and the second surface12. The via hole3includes a first via hole31, a second via hole32, a third via hole33, and a fourth via hole34. The radial connection line of the first via hole31and the second via hole32intersects with the radial connection line of the third via hole33and the fourth via hole34. It can be understood that the number and positions of the first via holes31, the second via holes32, the third via hole33, and the fourth via hole34can be set according to the number and positions of touch control pattern areas2. The first via hole31, the second via hole32, the third via hole33, and the fourth via hole34are filled with conductive medium.

A number of row touch control pattern units21and column touch control pattern units22are formed. A number of row touch control pattern units21arranged in rows are formed on the first surface11, and a number of column touch control pattern units22arranged in columns and intersecting with the row touch control pattern units21are formed on the first surface11. It can be understood that the row touch control pattern unit21and the column touch control pattern unit22can be quadrangle shaped, pentagon shaped, hexagon shaped, or circle shaped. Preferably, the row touch control pattern unit21and the column touch control pattern unit22are rhombus shaped. In other embodiments, the row touch control pattern unit21and the column touch control pattern unit22can be other shapes, for example, triangle shaped, ellipse shaped, or other shapes.

A number of first connection lines23are formed. A third connection segment231electrically connected between the third via hole33and the row touch control pattern unit21adjacent to the third via hole33is formed on the first surface11, and a fourth connection segment232electrically connected between the fourth via hole34and the row touch control pattern unit21adjacent to the fourth via hole34is formed on the first surface11. A second conductive line233electrically connected to each third via hole33and fourth via hole34of the same row is formed on the second surface12. It can be understood that the third connection segment231and the fourth connection segment232are collinear and disconnected from each other. The central connection line of the row touch control pattern units21, the third connection segment231, and the fourth connection segment232are collinear. The third connection segment231and the fourth connection segment232are arranged between two adjacent row touch control pattern units21. The projection of the second conductive line233on the first surface11, the third connection segment231, and the fourth segment232are collinear. The first connection line23is a metal conductive line, and is formed on the substrate1via the depositing, coating, or sputtering manner.

A number of second connection lines24are formed. A first connection segment241electrically connected between the first via hole31and the column touch control pattern unit22adjacent to the first via hole31is formed on the first surface11, and a second connection segment242electrically connected between the second via hole32and the column touch control pattern unit22adjacent to the second via hole32is formed on the first surface11. A first conductive line243electrically connected to the first via hole31and the second via hole32is formed on the second surface12. On the second surface12, the second conductive line233intersects with the first conductive line243. In can be understood that the first connection segment241and the second connection segment242are collinear and disconnected from each other. The central connection line of the column touch control pattern units22, the first connection segment241, and the second connection segment242are collinear. The first connection segment241and the second connection segment242are arranged between two adjacent column touch control pattern units222. The projection of the first conductive line243on the first surface11, the first connection segment241, and the second connection segment242are collinear. The second connection line24is a metal conductive line, and is formed on the substrate1via the depositing, coating, or sputtering manner.

In the method of manufacturing the touch control screen provided by the embodiment of the present invention, the via hole3is defined on the substrate1, and the first conductive line243and the second conductive line233are formed on the second surface12to be connected to the first and second row touch control pattern units212and the first and second column touch control pattern units222, and the first and second row touch control pattern units212and the first and second column touch control pattern units222are arranged on the first surface11, thus the first conductive line243intersects with the first connection line23on the second surface12and the first surface11to realize touch control function.

Referring toFIGS. 1-8, the method for manufacturing an OLED touch control display device provided by an embodiment of the present invention includes the following steps.

A substrate1is provided. The substrate1includes a first surface11and a second surface11arranged opposite the first surface11.

A touch control screen is manufactured. The above method for manufacturing the touch control screen is employed to manufacture the touch control screen. It can be understood that the detailed method is the method for manufacturing the touch control screen in each of the above embodiments, which will not be repeated herein.

A display area4is manufactured. The display area4is formed on the second surface12. The display area4includes a number of pixel units41arranged in an array and display driving circuits42each corresponding to one pixel unit41and configured to light the corresponding pixel unit41up. It can be understood that by arranging the display area4on the second surface12, that is, arranging the display area4and the touch control pattern area2on opposite surfaces of the substrate1, the thickness of the OLED touch control device can be effectively reduced. Furthermore, by arranging the display area4and the touch control pattern area2formed in the above steps on the same substrate1, the touch function is independent of the display function or the function of TDMA of touch and display can be realized, which can effectively reduce the total number of lines, and thus assist in realizing supper narrow side design.

Furthermore, the method for manufacturing the OLED touch control display device can further include a step of manufacturing interfaces. On the substrate1, a touch control interface circuit51connected to the touch control screen and an interface binding area52connected to the display area4are manufactured. The touch control interface circuit51and the interface binding area52are arranged on the first surface11or the second surface12of the substrate1via the via hole3. It can be understood that the touch control interface circuit51and the interface binding area52are arranged on the first surface11or second surface12of the substrate1via the via holes3, that is using single-sided IC or FPC coating, process steps can be reduced, which results in reduction of cost. Preferably, the touch control interface circuit51can include a driving interface and a testing interface, and can also include other interfaces.

Furthermore, in the step of manufacturing the display area4, the pixel units41include a number of groups of row pixel units41and column pixel units41, and the row pixel units41and the column pixel units41are arranged in an array. The row pixel units41include a number of first pixel units41spaced at equal distance, and the column pixel units41include a number of second pixel units41spaced at equal distance. Each first pixel unit41and each second pixel unit41are respectively controlled by the corresponding display driving circuits42. It can be understood that each pixel unit41is lit up by the corresponding display driving circuit42. In the above manners, the same touch control pattern area2corresponds to at least one array of the pixel units41. The first conductive line243of the touch control pattern area2is arranged on the symmetric line of the array of the pixel units41. The direction of the symmetric line is the same as that of the column touch control pattern unit22.

The foregoing descriptions are merely preferred embodiments of the present disclosure, rather than limiting the present disclosure. Any modification, equivalent substitution, improvement or the like made within the spirit and principle of the present disclosure shall fall into the protection scope of the present disclosure.