CN209911943U

CN209911943U - Embedded touch display structure

Info

Publication number: CN209911943U
Application number: CN201920603719.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Fujian Huajiacai Co Ltd
Current assignee: Fujian Huajiacai Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-07
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to the technical field of microelectronics, in particular to an embedded touch display structure, including first line, more than two electric capacity and more than two transistors, through setting up the transistor in order to realize the switch function, control the compensation time to the touch-control response electrode, through setting up electric capacity and being used for maintaining voltage during panel display period, thereby avoid producing the influence to the touch-control function of panel; the embedded touch display structure of this scheme design can effectively improve the horizontal line problem of panel to strengthen the display effect of panel.

Description

Embedded touch display structure

Technical Field

The utility model relates to a microelectronics technical field, in particular to embedded touch-control shows structure.

Background

The small and medium-sized screens are generally classified into an Out-Cell (Out-Cell) and an In-Cell (In-Cell). The Out-Cell panel only supports a display function and does not support a touch function, and if the touch function is needed, a touch film needs to be added on the panel; the In-Cell panel not only supports the display function, but also can realize the touch function. Therefore, to realize both display and touch functions, the In-Cell panel can be thinner and thinner than the Out-Cell panel and has good transmittance.

One method for realizing In-Cell is to divide the COM electrodes, then use the divided COM electrodes as sensors of the touch panel, after the COM electrodes (also called common electrode plate electrodes) are divided, each COM electrode drive needs an independent drive of the IC chip, if the COM electrodes are largely coupled, the panel will have uniform horizontal stripes from the counter terminal portion to the terminal portion, and the display effect of the panel is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: an in-cell touch display structure is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be:

an embedded touch display structure comprises a panel body and an IC chip, wherein the IC chip is arranged on one side of the panel body, the panel body comprises a terminal area and a counter terminal area, the terminal area and the counter terminal area are respectively provided with more than two touch sensing electrodes, each touch sensing electrode is correspondingly connected with a sensing wire, each touch sensing electrode is connected with the IC chip through the corresponding sensing wire, and the embedded touch display structure also comprises a first wire, more than two capacitors and more than two transistors;

each touch sensing electrode in the anti-terminal area is correspondingly connected with a second routing, one end of each capacitor is respectively connected with one touch sensing electrode in the corresponding anti-terminal area and the source electrode of one corresponding transistor through one corresponding second routing, the other end of each capacitor is grounded, the drain electrode of each transistor is connected with the first routing, and the grid electrodes of more than two transistors are sequentially connected.

The beneficial effects of the utility model reside in that:

the transistor is arranged to realize a switching function, the compensation time of the touch sensing electrode is controlled, the capacitor is arranged to maintain voltage during the display period of the panel, so that the touch function of the panel is prevented from being influenced, and the first routing wire is arranged to additionally supplement charges to the COM electrode during the display period, so that the cross striation caused by insufficient charging is improved; the embedded touch display structure of this scheme design can effectively improve the horizontal line problem of panel to strengthen the display effect of panel.

Drawings

Fig. 1 is a schematic structural diagram of an embedded touch display structure according to the present invention;

fig. 2 is a detailed structural diagram of a reverse terminal region of an in-cell touch display structure according to the present invention;

description of reference numerals:

1. a panel body; 2. an IC chip; 3. touch sensing electrodes; 4. a sensing wire; 5. a first trace.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The utility model discloses the most crucial design lies in: the second wires are correspondingly connected to each touch sensing electrode in the anti-terminal area and are respectively and correspondingly connected with a capacitor and a transistor, so that the touch sensing electrodes are compensated.

Referring to fig. 1 and fig. 2, the technical solution provided by the present invention is:

an embedded touch display structure comprises a panel body and an IC chip, wherein the IC chip is arranged on one side of the panel body, the panel body comprises a terminal area and a counter terminal area, the terminal area and the counter terminal area are respectively provided with more than two touch sensing electrodes, each touch sensing electrode is correspondingly connected with a sensing wire, and each touch sensing electrode is connected with the IC chip through the corresponding sensing wire;

From the above description, the beneficial effects of the present invention are:

Furthermore, the first routing wires are arranged outside the panel body and surround the panel body.

Further, the capacitor and the transistor are arranged outside the panel body and located on two opposite sides of the longitudinal axis direction of the panel body.

As can be seen from the above description, the capacitor and the transistor are disposed outside the panel body, which can avoid affecting the display function of the panel body, and if the capacitor and the transistor are disposed in the panel body, the panel body cannot normally display.

Further, the capacitor and the transistor are located between the panel body and the first wire.

Furthermore, more than two touch sensing electrodes in the terminal area and the counter terminal area are arranged in an array manner.

According to the description, the touch sensing electrodes are arranged in an array mode, the limited display space of the panel can be reasonably utilized, the compensation effect can be better, and therefore the better display effect is obtained.

Further, the first wire and the second wire are both reference voltage wires.

According to the description, the first wiring and the second wiring are both reference voltage wiring, so that the capacitor and the transistor are connected with a reference voltage signal, and the effect of improving the cross striation is achieved.

Further, the touch sensing electrode is a transparent common electrode.

As can be seen from the above description, the touch sensing electrode is a transparent common electrode, which can improve the display effect of the panel.

Furthermore, the touch sensing electrode is made of indium tin oxide.

As can be seen from the above description, indium tin oxide is a semiconductor transparent conductive film, has good conductivity and transparency, and can be more beneficial to the display of the panel due to the high light transmittance of indium tin oxide.

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is:

an embedded touch display structure comprises a panel body 1 and an IC chip 2, wherein the IC chip 2 is arranged on one side of the panel body 1, the panel body 1 comprises a terminal area and a counter terminal area, the terminal area and the counter terminal area are both provided with more than two touch sensing electrodes 3, each touch sensing electrode 3 is correspondingly connected with a sensing wire 4, each touch sensing electrode 3 is connected with the IC chip 2 through the corresponding sensing wire 4, and the embedded touch display structure further comprises a first wire 5, more than two capacitors and more than two transistors;

each touch sensing electrode 3 in the anti-terminal area is correspondingly connected with a second wire, one end of each capacitor is respectively connected with one touch sensing electrode 3 in the corresponding anti-terminal area and the source electrode of one corresponding transistor through the corresponding second wire, the other end of each capacitor is grounded, the drain electrode of each transistor is connected with the first wire 5, and the grid electrodes of more than two transistors are sequentially connected.

The first wire 5 is arranged outside the panel body 1 and surrounds the panel body 1.

The capacitor and the transistor are arranged outside the panel body 1 and on two opposite sides of the panel body 1 in the longitudinal axis direction.

The capacitor and the transistor are located between the panel body 1 and the first trace 5.

The more than two touch sensing electrodes 3 in the terminal area and the counter terminal area are arranged in an array.

The first wire 5 and the second wire are both reference voltage wires.

The touch sensing electrode 3 is a transparent common electrode.

The touch sensing electrode 3 is made of indium tin oxide.

In the conventional design, the length of the sensing trace gradually increases from the terminal area to the anti-terminal area, and as the length of the sensing trace increases, the resistance-capacitance load of the sensing trace also increases, and the resistance-capacitance delay becomes more serious. In the same time, when the COM electrodes are coupled by the data lines and the limp polar lines, the charge supplied by the COM electrodes is less as the COM electrodes are closer to the counter terminal area, so that the cross striation phenomenon of the touch panel is easy to occur.

Assuming that the number of transistors is a (i.e., T1-Ta), the number of capacitors is a (i.e., C1-Ca);

a (0 ≦ a ≦ M × N) touch sensing electrodes 3 may be connected, where M × N indicates that the COM electrode is divided into M × N blocks (M is a row and N is a column), so that M × N touch sensing electrodes 3 may be provided, and the touch sensing electrodes 3 may have M-1 rows of horizontal stripes (also called slits, horizontal stripes seen by human eyes when charging is insufficient, and in english, denoted by gap), for example, when M is 30 and N is 10, the panel body may have 300 touch sensing electrodes 3 and 29 rows of gap.

The method comprises the following steps that charge supplement is carried out on a touch induction electrodes 3 from a counter terminal area, and a capacitors are used for maintaining voltage during panel display; during the panel display period, the transistor is turned off to avoid affecting the touch function. When the COM electrodes are coupled by the data lines and limp pole lines, the cross stripes of the touch panel can be compensated, and a better display effect can be obtained.

To sum up, the utility model provides an embedded touch display structure, through setting up the transistor in order to realize the switch function, control the compensation time to touch-control induction electrode, through setting up electric capacity and be used for maintaining voltage during panel display, thereby avoid producing the influence to the touch-control function of panel, through setting up first walking line, can give COM electrode additional supplementary electric charge during the display, thereby improve the striae that leads to because of charging the deficiency; the embedded touch display structure of this scheme design can effectively improve the horizontal line problem of panel to strengthen the display effect of panel.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. An embedded touch display structure comprises a panel body and an IC chip, wherein the IC chip is arranged on one side of the panel body, the panel body comprises a terminal area and a counter terminal area, the terminal area and the counter terminal area are respectively provided with more than two touch sensing electrodes, each touch sensing electrode is correspondingly connected with a sensing wire, and each touch sensing electrode is connected with the IC chip through the corresponding sensing wire;

2. The in-cell touch display structure of claim 1, wherein the first traces are disposed outside the panel body and surround the panel body.

3. The in-cell touch display structure of claim 2, wherein the capacitors and the transistors are disposed outside the panel body and on opposite sides of the panel body in a longitudinal direction.

4. The in-cell touch display structure of claim 3, wherein the capacitor and the transistor are located between the panel body and the first trace.

5. The in-cell touch display structure of claim 1, wherein the two or more touch sensing electrodes of the terminal area and the counter terminal area are arranged in an array.

6. The in-cell touch display structure of claim 1, wherein the first traces and the second traces are both reference voltage traces.

7. The in-cell touch display structure of claim 1, wherein the touch sensing electrodes are transparent common electrodes.

8. The in-cell touch display structure of claim 7, wherein the touch sensing electrode is made of ITO.