TWI707265B - In-cell capacitive touch panel - Google Patents

Abstract

An in-cell capacitive touch panel includes a substrate, a display layer, a first spacer, a display electrode, an encapsulation layer, at least one touch sensing electrode, a gap sensing electrode and an insulating layer. The display layer and first spacer are formed above the substrate and separated. The display electrode is formed above the display layer and first spacer. The encapsulation layer is disposed above the display electrode and opposite to the substrate. The touch sensing electrode is formed under the encapsulation layer and above the display electrode. The gap sensing electrode is formed under the encapsulation layer and above the display electrode and separated from the touch sensing electrode. A step layer formed between the encapsulation layer and gap sensing electrode and/or a second spacer formed under the display electrode make a distance between the gap sensing electrode and display electrode smaller than a distance between the touch sensing electrode and display electrode.

Description

Embedded capacitive touch panel

The present invention relates to a display device, and particularly relates to an in-cell capacitive touch panel.

Generally speaking, compared to Out-cell or On-cell touch panels, In-cell touch panels can achieve the thinnest touch panel design.

However, for the in-cell capacitive touch panel, since the touch-sensing electrodes and the display electrodes (such as the cathode) are relatively close, when the in-cell capacitive touch panel is subjected to external forces, the touch-sensing electrodes and the display electrodes are When the pitch is changed, a considerable amount of capacitance change will be formed. Once the capacitance change amount is close to the capacitance sensing amount caused by a finger touch, it will be difficult to distinguish whether it is caused by the finger touch or the change in the distance between the touch sensing electrode and the display electrode, which causes difficulty in touch sensing.

As shown in FIG. 1, in the traditional in-cell capacitive touch panel 1, the touch sensing electrodes TE1~TE2 are arranged under the encapsulation layer ENC, and the insulating layer ISO and the display electrode (such as the cathode) below CAs are separated from each other. At this time, the distance H1 between the touch sensing electrodes TE1 to TE2 and the display electrode CA is mainly determined by the spacer layer (Spacer) PS. The capacitance formed between the touch sensing electrodes TE1 to TE2 and the display electrode CA is Cb1.

As shown in Figure 2, when the user’s finger FIN touches the embedded capacitor When the touch panel 1 corresponds to the touch sensing electrode TE1, the capacitance formed between the finger FIN and the touch sensing electrode TE1 is Cb2. At this time, the capacitance value sensed by the touch sensing electrode TE1 is the sum of Cb1 and Cb2. In this way, the touch sensing electrode TE1 can determine that the finger FIN touches the position on the in-cell capacitive touch panel 1 corresponding to the touch sensing electrode TE1, but the touch sensing electrode TE2 is not touched. The sensed capacitance value is still Cb1.

Please refer to FIGS. 3A and 3B. FIG. 3A shows a schematic diagram of a plurality of touch sensing electrodes of the in-cell capacitive touch panel; FIG. 3B shows the touch sensing electrodes in FIG. 3A. Capacitance sensing amount. As shown in FIGS. 3A and 3B, since the position P1 where the finger FIN touches the in-cell capacitive touch panel 1 corresponds to the touch sensing electrode TE1, the capacitance sensing amount sensed by the touch sensing electrode TE1 is 150 It is significantly larger than the capacitance sensed by other touch sensing electrodes. By detecting these capacitive sensing quantities, the position of the finger touch can be determined.

However, as shown in FIG. 4, if the user's finger FIN touches the in-cell capacitive touch panel 1, a large external force F1 is applied, which causes the spacer layer PS to be compressed and cannot maintain its original height, making the touch sensing The distance between the electrode TE1 and the display electrode CA is shortened from the original H1 to H2, which causes the capacitance formed between the touch sensing electrode TE1 and the display electrode CA to increase from the original Cb1 to Cb1', that is, Cb1'> Cb1.

At this time, as shown in FIGS. 5A and 5B, if the finger FIN presses the position P2 of the in-cell capacitive touch panel 1, the position P2 corresponds to the touch sensing electrode TE1. Since Cb1 increases to Cb1', the touch sensing electrode TE1 The sensed capacitance will increase beyond 250, even the electricity sensed by the adjacent touch sensing electrode TE2 that is not pressed by the finger FIN The capacitance sensitivity may also increase to 113 due to the change of the distance, which may cause misjudgment of the touch position of the finger FIN, which needs to be improved.

In addition, as shown in FIG. 6, when the in-cell capacitive touch panel 1 hits an object or falls to the ground, the external force F2 experienced by it may also compress the spacer layer PS so that the touch sensing electrode TE1 and the display electrode The distance between CA is shortened from the original H1 to H2, which causes the capacitance formed between the touch sensing electrode TE1 and the display electrode CA to increase from the original Cb1 to Cb1', that is, Cb1'>Cb1.

At this time, the amount of capacitance change caused by the change in the distance caused by the depression or impact may be close to the capacitance measurement when the finger is normally touched, as shown in Figure 7A and Figure 7B, if the external force F2 of the depression or impact is applied The position P3 corresponds to the touch-sensing electrode TE1. Except that the capacitance sensed by the touch-sensing electrode TE1 at the main acting position will increase to 120, even adjacent touches that are not directly affected by the external force F2 The sensing electrode TE2 may also increase the amount of capacitance sensed to 113 due to the change in the pitch, which may lead to a misjudgment of finger touch when the finger is not touched, and urgent improvement is needed.

In view of this, the present invention proposes an in-cell capacitive touch panel to effectively solve the above-mentioned problems encountered in the prior art.

A specific embodiment according to the present invention is an in-cell capacitive touch panel. In this embodiment, the in-cell capacitive touch panel includes a substrate, a display layer, a first spacer layer, a display electrode, an encapsulation layer, at least one touch sensing electrode, a spacing sensing electrode, and an insulating layer. The display layer is formed on the substrate. The first spacer layer is formed on the base Above the board and separated from the display layer. The display electrode is formed above the display layer and the first spacer layer. The encapsulation layer is disposed above the display electrode relative to the substrate. The at least one touch sensing electrode is formed under the encapsulation layer and above the display electrode. The spacing sensing electrode is formed under the encapsulation layer and above the display electrode. The spacing sensing electrode and the at least one touch sensing electrode are separated from each other. The insulating layer is formed under the encapsulation layer, the at least one touch sensing electrode and the spacing sensing electrode and above the display electrode.

In one embodiment, the display layer is an organic light emitting diode layer.

In one embodiment, the display electrode is the cathode or anode of the display layer.

In one embodiment, the area of the pitch sensing electrode is much smaller than the area of the at least one touch sensing electrode.

In one embodiment, the in-cell capacitive touch panel further includes a stage layer. The stage layer is formed between the packaging layer and the spacing sensing electrode and is separated from the at least one touch sensing electrode.

In one embodiment, the distance between the spacing sensing electrode and the display electrode below it is smaller than the distance between the at least one touch sensing electrode and the display electrode below it.

In one embodiment, when the in-cell capacitive touch panel is affected by an external force, the capacitance change ratio of the spacing sensing electrode to the display electrode below it is greater than the capacitance of the at least one touch sensing electrode to the display electrode below it Change ratio.

In one embodiment, the in-cell capacitive touch panel further includes a second spacer layer formed above the substrate and separated from the display layer and the first spacer layer. The second spacer layer corresponds to the spacer sensor electrode and is located at the spacer sensor. Below the measuring electrode, display The electrode is also formed above the second spacer layer.

In one embodiment, the height of the second spacer layer is smaller than the height of the first spacer layer, so that there is a gap between the insulating layer below the spacing sensing electrode and the display electrode above the second spacer layer.

In one embodiment, the in-cell capacitive touch panel further includes a second spacer layer formed above the substrate and separated from the display layer and the first spacer layer. The second spacer layer corresponds to the spacer sensor electrode and is located at the spacer sensor. Below the measuring electrode, the display electrode is also formed above the second spacer layer.

In one embodiment, the height of the second spacer layer is smaller than the height of the first spacer layer, so that there is a gap between the insulating layer below the spacing sensing electrode and the display electrode above the second spacer layer.

In one embodiment, the at least one touch sensing electrode includes a first touch sensing electrode and a second touch sensing electrode. The spacing sensing electrode is located between the first touch sensing electrode and the second touch sensing electrode, and the spacing sensing electrode is separated from the first touch sensing electrode and the second touch sensing electrode.

In one embodiment, the in-cell capacitive touch panel further includes a polarizing layer and a protective glass layer. The polarizing layer is formed on the packaging layer. The protective glass layer is formed above the polarizing layer.

Compared with the prior art, the in-cell capacitive touch panel according to the present invention uses spacing sensing electrodes to detect changes in the distance between the touch sensing electrodes and the display electrodes, so that the touch sensing electrodes can clearly distinguish their sensing The capacitance change is caused by finger pressing or the change of the distance between the display electrode and the touch sensing electrode. In order to effectively avoid the misjudgment of the prior art touch.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1, 2, 3, 4‧‧‧In-cell capacitive touch panel

SUB‧‧‧Substrate

OLED‧‧‧Display layer

PDL‧‧‧Pixel Definition Layer

PS‧‧‧Interval layer

CA‧‧‧Display electrode

ISO‧‧‧Insulation layer

TE1~TE2‧‧‧Touch sensor electrode

ENC‧‧‧Encapsulation layer

POL‧‧‧ Polarizing layer

CL‧‧‧Protection glass layer

H1‧‧‧Distance

Cb1‧‧‧Capacitance value

Cb2‧‧‧Capacitance value

FIN‧‧‧Finger

P1‧‧‧Location

Cb1’‧‧‧Capacitance value

H2‧‧‧Distance

F1‧‧‧Downforce

P2‧‧‧Location

F2‧‧‧External force

P3‧‧‧Location

HP1‧‧‧Distance

Cbp1‧‧‧Capacitance value

ST‧‧‧Stage layer

GSE‧‧‧Pitch sensing electrode

H1’‧‧‧Distance

HP1’‧‧‧Distance

Cbp1’‧‧‧Capacitance value

PS1‧‧‧The first compartment

PS2‧‧‧Second compartment

GAP1‧‧‧Gap

GAP2‧‧‧Gap

FIG. 1 shows a schematic diagram of the laminated structure of a conventional in-cell capacitive touch panel.

FIG. 2 shows a schematic diagram of a conventional in-cell capacitive touch panel being touched by a finger.

3A shows a schematic diagram of one of the touch sensing electrodes of the in-cell capacitive touch panel being touched by a finger; FIG. 3B shows the touch sensing electrodes in FIG. 3A respectively The sensed capacitance value.

FIG. 4 is a schematic diagram showing the external force applied when the finger touches the traditional in-cell capacitive touch panel.

5A illustrates a schematic diagram of one of the touch sensing electrodes of the in-cell capacitive touch panel being touched by a finger and applying an external force; FIG. 5B illustrates the touches in FIG. 5A respectively The capacitance value sensed by the sensing electrode.

FIG. 6 illustrates a schematic diagram of the external force acting when the in-cell capacitive touch panel hits an object or falls to the ground.

7A illustrates a schematic diagram of one of the touch sensing electrodes of the in-cell capacitive touch panel being impacted or dropped by an external force; FIG. 7B illustrates the touches in FIG. 7A, respectively Control the capacitance value sensed by the sensing electrode.

Figure 8 illustrates the first preferred embodiment according to the present invention A schematic diagram of the laminated structure of the in-cell capacitive touch panel.

FIG. 9 illustrates a schematic diagram in which spacing sensing electrodes are arranged between adjacent touch sensing electrodes and the area of the spacing sensing electrodes is much smaller than the area of the touch sensing electrodes.

FIG. 10 is a schematic diagram of the in-cell capacitive touch panel of FIG. 8 being touched by a finger.

11 is a schematic diagram of the laminated structure of the in-cell capacitive touch panel in the second preferred embodiment of the present invention.

12 is a schematic diagram of the laminated structure of the in-cell capacitive touch panel in the third preferred embodiment of the present invention.

A specific embodiment according to the present invention is an in-cell capacitive touch panel. In this embodiment, the in-cell capacitive touch panel can be an active-matrix organic light-emitting diode (AMOLED) capacitive touch panel and can be applied to self-capacitance touch technology, but Not limited to this.

Please refer to FIG. 8. FIG. 8 illustrates a schematic diagram of the laminated structure of the in-cell capacitive touch panel in the first preferred embodiment of the present invention.

As shown in FIG. 8, the in-cell capacitive touch panel 2 includes a substrate SUB, a display layer OLED, a pixel defining layer PDL, a spacer layer PS, a display electrode CA, an insulating layer ISO, touch sensing electrodes TE1~TE2, a spacing sensor Measuring electrode GSE, stage layer ST, encapsulation layer ENC, polarizing layer POL and protective glass layer CL.

In fact, the display layer OLED can be an organic light-emitting diode layer. The display electrode CA may be the cathode or anode of the display layer OLED, the spacer layer PS may be formed of organic or inorganic materials and have a certain height, and the display electrode CA, touch sensing electrodes TE1~TE2, and spacing sensing electrodes GSE may be made of conductive materials. The insulating layer ISO and the stage layer ST can be made of insulating materials, but not limited to this.

The display layer OLED and the pixel defining layer PDL are both formed above the substrate SUB, and the pixel defining layer PDL is respectively formed on both sides of the display layer OLED. The spacer layer PS is formed above the pixel defining layer PDL. The display electrode CA is formed above the pixel defining layer PDL, the spacer layer PS and the display layer OLED.

The encapsulation layer ENC is opposite to the substrate SUB. The touch sensing electrodes TE1 to TE2 are formed under the packaging layer ENC. The stage layer ST is formed under the encapsulation layer ENC and located between the touch sensing electrodes TE1~TE2. The spacing sensing electrode GSE is formed under the stage layer ST and between the touch sensing electrodes TE1~TE2. The insulating layer ISO is formed under the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and the encapsulation layer ENC and above the display electrode CA to separate the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and Display electrode CA. The polarizing layer POL and the protective glass layer CL are sequentially formed on the encapsulation layer ENC.

In this embodiment, the capacitance value between the touch sensing electrodes TE1~TE2 and the display electrode CA is Cb1; the capacitance value between the spacing sensing electrode GSE and the display electrode CA is Cbp1; the touch sensing electrode TE1~ The distance between TE2 and the display electrode CA is H1; the distance between the gap sensing electrode GSE and the display electrode CA is HP1. Since the stage layer ST has a certain thickness, the distance HP1 between the gap sensing electrodes GSE and the display electrode CA is smaller than the distance between the touch sensing electrodes TE1~TE2 and the display electrode CA. H1.

As shown in FIG. 9, the spacing sensing electrodes GSE are arranged between adjacent touch sensing electrodes TE1~TE2, and the area of the spacing sensing electrodes GSE is much smaller than that of the touch sensing electrodes TE1~TE2, so that The sensing amount of the finger to the gap sensing electrode GSE is small to avoid interference with normal touch sensing.

As shown in FIG. 10, when the finger FIN presses the in-cell capacitive touch panel 2, the distance HP1' between the spacing sensing electrode GSE and the display electrode CA located below it is smaller than that of the touch sensing electrodes TE1~TE2 and The distance H1' between the display electrodes CA below it is such that the capacitance change ratio Cbp1'/Cbp1 of the gap sensing electrode GSE to the display electrode CA is greater than that of the touch sensing electrode TE1~ The capacitance change ratio Cb1'/Cb1 of TE2 to the display electrode CA.

It should be noted that, compared with the prior art, the distance between the finger FIN and the gap sensing electrode GSE is only one more than the thickness of the stage layer ST, and the thickness of the stage layer ST (usually several um) is much smaller than the protective glass layer The thickness of the CL, the polarizing layer POL, and the encapsulation layer ENC (usually hundreds of um), and the area of the spacing sensing electrode GSE is much smaller than that of the touch sensing electrodes TE1 to TE2. Therefore, the capacitance of the finger FIN to the gap sensing electrode GSE will be lower than the capacitance of the gap sensing electrode GSE to the gap change, so that the capacitance change caused by the external force on the gap sensing electrode GSE can be separated from the touch of the finger FIN. Therefore, when the finger FIN presses the in-cell capacitive touch panel 2, it can be judged whether it is pressed heavily, and the sensing amount of the touch sensing electrodes TE1~TE2 can be baseline corrected.

Please refer to FIG. 11. FIG. 11 is a schematic diagram of the laminated structure of the in-cell capacitive touch panel in the second preferred embodiment of the present invention.

As shown in FIG. 11, the in-cell capacitive touch panel 3 includes a substrate SUB, a display layer OLED, a pixel defining layer PDL, a first spacer layer PS1, a second spacer layer PS2, a display electrode CA, an insulating layer ISO, and a touch sensor. The measuring electrodes TE1 to TE2, the spacing sensing electrode GSE, the encapsulation layer ENC, the polarizing layer POL, and the protective glass layer CL.

In fact, the display layer OLED can be an organic light emitting diode layer, the display electrode CA can be the cathode or anode of the display layer OLED, the first spacer layer PS1 and the second spacer layer PS2 can be formed of organic or inorganic materials and have a certain height. The electrode CA, the touch sensing electrodes TE1 to TE2, and the spacing sensing electrode GSE may be made of conductive materials, and the insulating layer ISO may be made of insulating materials, but it is not limited thereto.

The display layer OLED and the pixel defining layer PDL are both formed above the substrate SUB, and the pixel defining layer PDL is respectively formed on both sides of the display layer OLED. The first spacer layer PS1 and the second spacer layer PS2 are both formed above the pixel defining layer PDL, but the first spacer layer PS1 and the second spacer layer PS2 are separated from each other. The second spacer layer PS2 corresponds to the spacer electrode GSE and is located below the spacer electrode GSE, and the height of the second spacer layer PS2 is smaller than the height of the first spacer layer PS1. The display electrode CA is formed on the pixel defining layer PDL, the first spacer layer PS1, the second spacer layer PS2 and the display layer OLED.

The encapsulation layer ENC is opposite to the substrate SUB. The touch sensing electrodes TE1 to TE2 are formed under the packaging layer ENC. The spacing sensing electrodes GSE are formed under the encapsulation layer ENC and between the touch sensing electrodes TE1~TE2. The insulating layer ISO is formed under the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and the encapsulation layer ENC and above the display electrode CA to separate the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and Display electrode CA. The polarizing layer POL and the protective glass layer CL are sequentially formed Formed above the encapsulation layer ENC.

It should be noted that since the height of the second spacer layer PS2 under the spacing sensing electrode GSE is smaller than the height of the first spacer layer PS1, the insulating layer ISO located under the spacing sensing electrode GSE is different from the insulating layer ISO located above the second spacer layer PS2. There is a gap GAP1 between the display electrodes CA. In this way, when the in-cell capacitive touch panel 3 cannot maintain a fixed pitch due to an external force, the distance of the gap GAP1 will also be reduced to sense the pitch change.

Please refer to FIG. 12. FIG. 12 is a schematic diagram of the laminated structure of the in-cell capacitive touch panel in the third preferred embodiment of the present invention.

As shown in FIG. 12, the in-cell capacitive touch panel 4 includes a substrate SUB, a display layer OLED, a pixel defining layer PDL, a first spacer layer PS1, a second spacer layer PS2, a display electrode CA, an insulating layer ISO, and a touch sensor. The measuring electrodes TE1 to TE2, the spacing sensing electrode GSE, the stage layer ST, the encapsulation layer ENC, the polarizing layer POL, and the protective glass layer CL.

In fact, the display layer OLED can be an organic light emitting diode layer, the display electrode CA can be the cathode or anode of the display layer OLED, the first spacer layer PS1 and the second spacer layer PS2 can be formed of organic or inorganic materials and have a certain height. The electrode CA, the touch sensing electrodes TE1 to TE2, and the spacing sensing electrode GSE can be made of conductive materials, and the insulating layer ISO and the stage layer ST can be made of insulating materials, but not limited to this.

The display layer OLED and the pixel defining layer PDL are both formed above the substrate SUB, and the pixel defining layer PDL is respectively formed on both sides of the display layer OLED. The first spacer layer PS1 and the second spacer layer PS2 are both formed above the pixel defining layer PDL, but the first spacer layer PS1 and the second spacer layer PS2 are separated from each other. The second spacer layer PS2 corresponds to the sense of spacing The sensing electrode GSE is located below the spacing sensing electrode GSE, and the height of the second spacer layer PS2 is smaller than the height of the first spacer layer PS1. The display electrode CA is formed on the pixel defining layer PDL, the first spacer layer PS1, the second spacer layer PS2 and the display layer OLED. The encapsulation layer ENC is opposite to the substrate SUB. The touch sensing electrodes TE1 to TE2 are formed under the packaging layer ENC. The stage layer ST is formed under the encapsulation layer ENC and located between the touch sensing electrodes TE1 to TE2. The spacing sensing electrode GSE is formed under the stage layer ST and between the touch sensing electrodes TE1~TE2. The insulating layer ISO is formed under the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and the encapsulation layer ENC and above the display electrode CA to separate the touch sensing electrodes TE1~TE2, the spacing sensing electrode GSE and Display electrode CA.

It should be noted that since the thickness of the stage layer ST (usually several um) is much smaller than the thickness of the protective glass layer CL, the polarizing layer POL and the encapsulation layer ENC (usually several hundred um), when the finger FIN presses the in-cell capacitive touch In panel 4, the capacitance of the finger FIN to the gap sensing electrode GSE will be lower than the capacitance caused by the distance between the gap sensing electrode GSE and the display electrode CA, so that the capacitance change caused by the downward force on the gap sensing electrode GSE can be compared with The touch of the finger FIN is separated, so it can be judged whether the finger FIN is pressed heavily on the in-cell capacitive touch panel 4, and the sensing amount of the touch sensing electrodes TE1~TE2 is corrected for baseline.

In addition, since the height of the second spacer layer PS2 located under the spacing sensing electrode GSE is smaller than the height of the first spacer layer PS1, the insulating layer ISO located under the spacing sensing electrode GSE and the display electrode located above the second spacing layer PS2 are There is a gap GAP2 between CAs. As a result, when the in-cell capacitive touch panel 4 is subjected to external forces, it cannot be maintained When a fixed pitch is maintained, the distance of the gap GAP2 will be reduced to sense the change in pitch.

Compared with the prior art, the in-cell capacitive touch panel according to the present invention uses spacing sensing electrodes to detect changes in the distance between the touch sensing electrodes and the display electrodes, so that the touch sensing electrodes can clearly distinguish their sensing The resulting capacitance change is caused by finger pressing or the change in the distance between the display electrode and the touch sensing electrode, so as to effectively avoid the misjudgment of touch in the prior art.

From the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, rather than limiting the scope of the present invention by the preferred embodiments disclosed above. On the contrary, its purpose is to cover various changes and equivalent arrangements within the scope of the patent application for the present invention. Through the detailed description of the preferred embodiments above, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, its purpose is to cover various changes and equivalent arrangements within the scope of the patent application for the present invention.

2‧‧‧In-cell capacitive touch panel

SUB‧‧‧Substrate

OLED‧‧‧Display layer

PDL‧‧‧Pixel Definition Layer

PS‧‧‧Interval layer

CA‧‧‧Display electrode

ISO‧‧‧Insulation layer

TE1~TE2‧‧‧Touch sensor electrode

ENC‧‧‧Encapsulation layer

ST‧‧‧Stage layer

GSE‧‧‧Pitch sensing electrode

POL‧‧‧ Polarizing layer

CL‧‧‧Protection glass layer

H1‧‧‧Distance

HP1‧‧‧Distance

Cb1‧‧‧Capacitance value

Cbp1‧‧‧Capacitance value

Claims (12)

An in-cell capacitive touch panel includes: a substrate; a display layer formed above the substrate; a first spacer layer formed above the substrate and separated from the display layer; and a display electrode formed on the substrate Above the display layer and the first spacer layer; an encapsulation layer disposed above the display electrode relative to the substrate; at least one touch sensing electrode formed below the encapsulation layer and above the display electrode; a spacing sensor The sensing electrode is formed under the encapsulation layer and above the display electrode, the spacing sensing electrode and the at least one touch sensing electrode are separated from each other; and an insulating layer is formed on the encapsulation layer and the at least one touch sensing electrode The sensing electrode and the spacing sensing electrode are below and above the display electrode; wherein the area of the spacing sensing electrode is much smaller than the area of the at least one touch sensing electrode. According to the in-cell capacitive touch panel described in claim 1, wherein the display layer is an organic light emitting diode layer. The in-cell capacitive touch panel described in the first item of the patent application, wherein the display electrode is the cathode or anode of the display layer. The in-cell capacitive touch panel described in claim 1 further includes: a polarizing layer formed on the encapsulation layer; and a protective glass layer formed on the polarizing layer. The in-cell capacitive touch panel described in item 1 of the scope of patent application further includes Including: a stage layer formed between the encapsulation layer and the spacing sensing electrode and separated from the at least one touch sensing electrode. The in-cell capacitive touch panel described in claim 5, wherein the distance between the spacing sensing electrode and the display electrode below it is smaller than the distance between the at least one touch sensing electrode and the display electrode below it The distance between. The in-cell capacitive touch panel described in item 5 of the scope of patent application, wherein when the in-cell capacitive touch panel is affected by an external force, the capacitance change ratio of the spacing sensing electrode to the display electrode below it is greater than The capacitance change ratio of the at least one touch sensing electrode to the display electrode below it. The in-cell capacitive touch panel described in claim 5 further comprises: a second spacer layer formed on the substrate and separated from the display layer and the first spacer layer, the second spacer The layer corresponds to the spacing sensing electrode and is located below the spacing sensing electrode, and the display electrode is also formed above the second spacing layer. The in-cell capacitive touch panel described in claim 8, wherein the height of the second spacer layer is smaller than the height of the first spacer layer, so that the insulating layer located under the spacing sensing electrode is There is a gap between the display electrodes above the second spacer layer. The in-cell capacitive touch panel described in claim 5 further comprises: a second spacer layer formed on the substrate and separated from the display layer and the first spacer layer, the second spacer Layer corresponding to the spacing sensing electrode and located below the spacing sensing electrode, the display electrode is also formed on the first Above the second compartment. The in-cell capacitive touch panel described in claim 10, wherein the height of the second spacer layer is smaller than the height of the first spacer layer, so that the insulating layer located under the spacing sensing electrode is There is a gap between the display electrodes above the second spacer layer. The in-cell capacitive touch panel described in claim 1, wherein the at least one touch sensing electrode includes a first touch sensing electrode and a second touch sensing electrode, and the distance sensing The electrode is located between the first touch sensing electrode and the second touch sensing electrode, and the spacing sensing electrode is separated from the first touch sensing electrode and the second touch sensing electrode.

Images