CN103164063A - Touch panel module and touch three-dimensional display device - Google Patents

Abstract

The invention relates to a touch panel module, which comprises a substrate, a protective plate, a plurality of first sensing series and a plurality of second sensing series. The substrate has a first surface and a second surface opposite to the first surface. The protective plate is connected with the substrate and has a third surface and a fourth surface opposite to the third surface. The fourth surface is located between the first surface and the third surface. The second surface is located between the first surface and the first sensing series. The second sensing series and the first sensing series are staggered and electrically insulated. The second sensing series is located on the fourth surface and is in contact with the fourth surface. The distance between the first sensing series and the second sensing series is far by a special configuration mode, so that the touch signal signals read by the second sensing series are not easily interfered by the signal signals inside the display panel, and the touch effect of the touch panel module is further improved. The touch sensitivity of the touch panel module and the touch display device is improved.

Description

Touch panel module and touch stereoscopic display device

technical field

The invention relates to an electronic device, and in particular to a touch panel module and a touch stereoscopic display device.

Background technique

Touch panels have been widely used in various electronic products, especially mobile electronic products, such as mobile phones and tablet computers, due to the advantages of user-friendly operation interfaces. In terms of sensing principles, touch panels can be classified into resistive, capacitive, and optical types. Among them, the capacitive touch panel has a better sensing effect and has become the mainstream of the touch panel today.

A common capacitive touch panel includes a substrate, a plurality of first sensing series and a plurality of second sensing series electrically insulated from each other. The first sensing series and the second sensing series are located on the same surface of the substrate. The first sensing series and the second sensing series are interleaved and electrically insulated. However, since the first sensing series and the second sensing series are located on the same surface, the distance between the first sensing series and the second sensing series is relatively short, thereby making the first sensing series and the second sensing series The capacitance between the second sensing series is large. In this way, the loading of the chip used to drive the capacitive touch panel will be too large, and the sensitivity of the capacitive touch panel will be reduced.

In addition, in the prior art, the capacitive touch panel is attached to the display panel to form a touch display device. With the thinning trend of touch display devices, the distance between the first sensing series and the second sensing series of the capacitive touch panel and the display panel is getting closer, which will cause the internal signal of the display panel to interfere with the touch signal. The problem.

Contents of the invention

The invention provides a touch panel module with high touch sensitivity.

The invention provides a touch stereoscopic display device, which also has high touch sensitivity.

The invention provides a touch panel module, which includes a substrate, a protection plate, a plurality of first sensing series and a plurality of second sensing series. The base has a first surface and a second surface opposite to the first surface. The protective plate has a third surface and a fourth surface opposite to the third surface. The protective plate is arranged on one side of the base. The fourth surface of the protective plate is located between the third surface and the first surface of the base. The first sensing series is disposed on the second surface of the substrate and is in contact with the second surface, so that the second surface is located between the first surface and the first sensing series. The second sensing series is disposed on the fourth surface of the protective plate and is in contact with the fourth surface. The second sensing series intersects with the first sensing series and is electrically insulated. The fourth surface is located between the third surface and the second sensing series.

The present invention provides a touch stereoscopic display device, including a protective plate, a parallax barrier (Parallax Barrier), a display panel, a plurality of first sensing series and a plurality of second sensing series. The protective plate has opposite fifth and sixth surfaces. The parallax barrier is connected to the protective plate and has opposite seventh and eighth surfaces. The seventh surface is located between the sixth surface and the eighth surface. The eighth surface is located between the seventh surface and the display panel. The first sensing series and the second sensing series are interleaved and electrically insulated. The first sensing series and the second sensing series are respectively located on any two surfaces of the sixth surface, the seventh surface and the eighth surface and are respectively in contact with these surfaces.

In an embodiment of the present invention, the above-mentioned first sensing series is used for inputting scanning signals, and the second sensing series is used for reading touch signal signals.

In an embodiment of the present invention, the above-mentioned touch panel module may further include a display panel. The display panel is connected with the second surface.

In an embodiment of the present invention, the above-mentioned first sensing series and the second sensing series are respectively located on the seventh surface and the sixth surface, and are respectively in contact with the seventh surface and the sixth surface.

In an embodiment of the present invention, the above-mentioned first sensing series and the second sensing series are respectively located on the eighth surface and the seventh surface, and are respectively in contact with the eighth surface and the seventh surface.

In an embodiment of the present invention, the above-mentioned first sensing series and the second sensing series are respectively located on the eighth surface and the sixth surface, and are respectively in contact with the eighth surface and the sixth surface.

In an embodiment of the present invention, the above-mentioned parallax barrier is used to switch the touch stereoscopic display device between a 2D display mode and a 3D display mode.

Based on the above, compared with the prior art, in the touch panel module and the touch stereoscopic display device of the present invention, the distance between the first sensing series and the second sensing series is relatively long, so that the first The capacitance formed by the sensing series and the second sensing series is relatively small. In this way, the load for driving the touch stereoscopic display device or the chip of the touch stereoscopic display device is relatively small, so that the touch panel module and the touch stereoscopic display device of the present invention have high touch sensitivity.

Description of drawings

FIG. 1A is a cross-sectional view of a touch panel module according to a first embodiment of the present invention.

FIG. 1B is a top view of the touch panel module according to the first embodiment of the present invention.

FIG. 2A is a cross-sectional view of a touch stereoscopic display device according to an embodiment of the present invention.

FIG. 2B is a top view of a touch panel module according to an embodiment of the invention.

FIG. 3 is a cross-sectional view of a touch stereoscopic display device according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a touch stereoscopic display device according to another embodiment of the present invention.

in,

100: Touch panel module 110: Substrate

110a: first surface 110b: second surface

120, 210: protective plate 120a: third surface

120b: the fourth surface 130, 240: the first sensing series

132: The first diamond-shaped sensing pad 140, 250: The second sensing series

142: Second diamond-shaped sensing pad 150, 170: Adhesive layer

160, 230: display panel 162: thin film transistor substrate

164: Color filter substrate 200, 200A, 200B: Touch stereoscopic display device

210a: fifth surface 210b: sixth surface

220: parallax barrier 220a: seventh surface 220b: eighth surface

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Example 1

FIG. 1A is a cross-sectional view of a touch panel module according to a first embodiment of the present invention. FIG. 1B is a top view of the touch panel module according to the first embodiment of the present invention. In particular, Fig. 1A corresponds to section line AA' of Fig. 1B. Please refer to FIG. 1A and FIG. 1B at the same time. The touch panel module 100 of this embodiment includes a substrate 110, a protection plate 120, a plurality of first sensing series 130 electrically insulated from each other, and a plurality of second sensing series 130 electrically insulated from each other. Sensing series 140 . In this embodiment, the materials of the base 110 and the protective plate 120 are preferably materials with high light transmittance and high reliability. The materials of the base 110 and the protective plate 120 include glass, quartz, organic polymer, or other applicable materials. s material.

The substrate 110 of this embodiment has a first surface 110 a and a second surface 110 b opposite to the first surface 110 a. The protective plate 120 of this embodiment is connected to the base 110 . Furthermore, the protective plate 120 can be connected to the base 110 through the adhesive layer 150 . The adhesive layer 150 is, for example, ultraviolet curable glue. The protective plate 120 also has a third surface 120a and a fourth surface 120b opposite to the third surface 120a. The fourth surface 120b is located between the first surface 110a and the third surface 120a. The second surface 110b is located between the first surface 110a and the first sensing series 130 . The second sensing series 140 is interleaved with the first sensing series 130 (drawn in FIG. 1B ) and electrically insulated. The second sensing series 140 is located on the fourth surface 120b and is in contact with the fourth surface 120b.

Please refer to FIG. 1B , in this embodiment, each first sensing series 130 and each second sensing series 140 can be electrically connected to each other by a plurality of first diamond-shaped sensing pads 132 , respectively. A plurality of second diamond-shaped sensing pads 142 are formed. However, the present invention does not limit the appearance of the first sensing series 130 and the second sensing series 140 , which can be properly designed according to actual needs. In this embodiment, the materials of the first sensing series 130 and the second sensing series 140 are preferably materials with high optical conductivity and high light transmittance, such as indium tin oxide, indium zinc oxide, Aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, or other suitable oxides, or a stacked layer of at least two of the above.

The first sensing series 130 and the second sensing series 140 of this embodiment can form a touch sensing layer. When the user touches the touch panel module 100 , the capacitance between the first sensing series 130 and the second sensing series 140 will change. In this way, the touch panel module 100 can sense the position touched by the user, and then make a corresponding action.

Please refer to FIG. 1B again. It is worth noting that the first sensing series 130 and the second sensing series 140 of this embodiment are respectively located on the second surface 110b of the substrate 110 and the fourth surface 120b of the protective plate 120 . In other words, compared with the prior art, the distance between the first sensing series 130 and the second sensing series 140 is longer, so that the capacitance between the first sensing series 130 and the second sensing series 140 The value is small. In this way, the load on the chip used to drive the touch panel module 100 is relatively small, thereby increasing the touch sensitivity of the touch panel module 100 of this embodiment.

The touch panel module 120 of this embodiment may optionally include a display panel 160 , so that the touch panel module 120 has both touch and display functions. In this embodiment, the display panel 160 can be connected to the second surface 110 b of the substrate 110 through the adhesive layer 170 . The display panel 160 of this embodiment can be a liquid crystal display panel (liquid crystal display panel), which includes a thin film transistor substrate (TFT substrate) 162, a color filter substrate (color filter substrate) 164, and a color filter substrate located between the thin film transistor substrate 162 and the color filter substrate. The liquid crystal layer (not shown) between the filter substrates 164 . However, the present invention is not limited thereto. In other embodiments, the display panel 160 can also be an organic electroluminescent display panel, an electrophoretic display panel, or an electrowetting display panel. panel) or other appropriate form of display panel.

It is worth mentioning that in order to prevent the reading of the touch signal from being interfered by the internal signal of the display panel 160 . In this embodiment, preferably, the first sensing series 130 is used for inputting scan signals, and the second sensing series 140 is used for reading out touch signals. In other words, the first sensing series 130 for inputting scan signals is located between the second sensing series 140 for reading touch signals and the display panel 160 . In this way, the centered first sensing series 130 can provide electrical shielding for the second sensing series 140 , so that the touch signals read out by the second sensing series 140 are not easily affected by the display panel 160 . Interference with internal signals. However, the present invention is not limited thereto. In other embodiments, the second sensing series 140 can also be used to receive scanning signals, and the first sensing series 130 can also be used to read out touch signals.

Example 2

FIG. 2A is a cross-sectional view of a touch stereoscopic display device according to an embodiment of the present invention. FIG. 2B is a top view of a touch panel module according to an embodiment of the invention. In particular, Fig. 2A corresponds to section line BB' of Fig. 2B. Please refer to FIG. 2A and FIG. 2B at the same time. The touch stereoscopic display device 200 of this embodiment is similar to the touch panel module of the first embodiment. The main difference between the two is that: the touch stereoscopic display device 200 of this embodiment also includes a parallax barrier 220, and the positions of the first sensing series 240 and the second sensing series 250 in this embodiment are the same as those in the second different in one embodiment. The differences will be described below, and the similarities between the two will not be repeated.

The touch stereoscopic display device 200 of this embodiment includes a protective plate 210, a parallax barrier 220, a display panel 230, a plurality of first sensing series 240 electrically insulated from each other, and a plurality of second sensing series electrically insulated from each other. Column 250. In this embodiment, the parallax barrier 220 is used to convert the 2D image presented by the display panel 230 into a 3D image. The parallax barrier 220 of this embodiment is, for example, an adjustable parallax barrier, which enables the touch stereoscopic display device 200 to switch between a 2D display mode and a 3D display mode. However, the present invention is not limited thereto. In other embodiments, the parallax barrier 220 may also be a fixed parallax barrier.

The protective plate 210 of this embodiment has a fifth surface 210a and a sixth surface 210b opposite to each other. A parallax barrier (Parallax Barrier) 220 is connected to the protective plate 210 . The parallax barrier 220 has opposite seventh surface 220a and eighth surface 220b. The seventh surface 220a is located between the sixth surface 210b and the eighth surface 220b. The eighth surface 220b is located between the seventh surface 220a and the display panel 230 . The first sensing series 240 and the second sensing series 250 are interleaved (drawn in FIG. 2B ) and electrically insulated. The first sensing series 240 and the second sensing series 250 are respectively located on any two surfaces of the sixth surface 210 b , the seventh surface 220 a and the eighth surface 220 b and are respectively in contact with these surfaces.

For example, as shown in FIG. 2A , in this embodiment, the first sensing series 240 and the second sensing series 250 can be located on the seventh surface 220 a and the sixth surface 210 b respectively, and are connected to the seventh surface 210 b respectively. The surface 220a is in contact with the sixth surface 210b. In other words, the first sensing series 240 and the second sensing series 250 of this embodiment can be integrated in the protective plate 210 and the parallax barrier 220, so that the touch stereoscopic display device 200 of this embodiment has the advantage of thinning . In addition, compared with the prior art, in this embodiment, the distance between the first sensing series 240 and the second sensing series 250 is longer, so that the first sensing series 240 and the second sensing series The capacitor value between the series 250 is small. In this way, the load on the chips used to drive the touch stereoscopic display device 200 is relatively small, and thus the touch sensitivity of the touch stereoscopic display device 200 of this embodiment is relatively high.

It is worth mentioning that, in order to prevent the reading of the touch signal of the touch stereoscopic display device 200 from being interfered by the internal signal of the display panel 230 . In this embodiment, preferably, the first sensing series 240 is used for inputting scan signals, and the second sensing series 250 is used for reading out touch signals. In other words, the first sensing series 240 for inputting scan signals is located between the second sensing series 250 for reading touch signals and the display panel 230 . In this way, the centered first sensing series 240 can provide electrical shielding for the second sensing series 250 , so that the touch signals read out by the second sensing series 250 are not easily affected by the display panel 230 . Interference with internal signals. However, the present invention is not limited thereto. In other embodiments, the second sensing series 250 can also be used to receive scanning signals, and the first sensing series 240 can also be used to read out touch signals.

In addition, in the touch stereoscopic display device of the present invention, the arrangement of the first sensing series 240 and the second sensing series 250 is not limited to that shown in FIG. 2A . FIG. 3 is a cross-sectional view of a touch stereoscopic display device 200A according to another embodiment of the present invention. Please refer to FIG. 3 , in this embodiment, the first sensing series 240 and the second sensing series 250 can be located on the eighth surface 220b and the seventh surface 220a respectively, and are connected to the eighth surface 220b and the seventh surface respectively. 220a contacts. The first sensing series 240 is used for inputting scan signals, and the second sensing series 250 is used for reading touch signals. The touch stereoscopic display device 200A also has advantages similar to the touch stereoscopic display device 200 such as thinning, high touch sensitivity, and reduced interference of internal signals of the display panel 230 .

FIG. 4 is a cross-sectional view of a touch stereoscopic display device 200B according to yet another embodiment of the present invention. Please refer to FIG. 4, in this embodiment, the first sensing series 240 and the second sensing series 250 are located on the eighth surface 220b and the sixth surface 210b respectively, and are connected to the eighth surface 220b and the sixth surface respectively. 210b contacts. The first sensing series 240 is used for inputting scan signals, and the second sensing series 250 is used for reading touch signals. The touch stereoscopic display device 200B also has advantages similar to the touch stereoscopic display device 200 , such as thinning, high touch sensitivity, and reduced interference of internal signals of the display panel 230 .

To sum up, in the touch panel module and the touch display device according to an embodiment of the present invention, the distance between the first sensing series and the second sensing series is relatively long through a special arrangement. In this way, the capacitance value between the first sensing series and the second sensing series is smaller, thereby improving the touch sensitivity of the touch panel module and the touch display device.

In addition, in the touch panel module and the touch display device according to an embodiment of the present invention, the first sensing series for inputting scan signals is located between the second sensing series for reading out touch signals and the display panel. between. In this way, the first sensing series in the center can provide electrical shielding for the second sensing series, so that the touch signals read out by the second sensing series are less likely to be interfered by internal signals of the display panel , thereby improving the touch effect of the touch panel module.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the scope of the claims of the present application.

Claims (9)

1. A touch panel module comprising:

a substrate having a first surface and a second surface opposite to the first surface;

a protection plate having a third surface and a fourth surface opposite to the third surface, wherein the protection plate is disposed on one side of the substrate, and the fourth surface of the protection plate is located between the third surface and the first surface of the substrate;

a plurality of first sensing series arranged on the second surface of the substrate and contacted with the second surface so as to enable the second surface to be positioned between the first surface and the first sensing series; and

the plurality of second sensing series are arranged on the fourth surface of the protection plate, are in contact with the fourth surface, are staggered with the first sensing series and are electrically insulated, so that the fourth surface is positioned between the third surface and the second sensing series.

2. The touch panel module of claim 1, wherein the first sensing strings are used for inputting a scan signal, and the second sensing strings are used for reading out a touch signal.

3. The touch panel module of claim 2, further comprising a display panel connected to the second surface.

4. A touch stereoscopic display device, comprising:

a protection plate having a fifth surface and a sixth surface opposite to each other;

the parallax grating is connected with the protection plate and is provided with a seventh surface and an eighth surface which are opposite, wherein the seventh surface is positioned between the sixth surface and the eighth surface;

a display panel, the eighth surface being located between the seventh surface and the display panel;

the first sensing series and the second sensing series are staggered and electrically insulated, and are respectively positioned on any two surfaces of the sixth surface, the seventh surface and the eighth surface and are respectively contacted with the surfaces.

5. The touch stereoscopic display device according to claim 4, wherein the first sensing series are used for being inputted with a scan signal, and the second sensing series are used for reading out a touch signal.

6. The touch stereoscopic display device according to claim 5, wherein the first sensing strings and the second sensing strings are respectively located on the seventh surface and the sixth surface and are respectively in contact with the seventh surface and the sixth surface.

7. The touch stereoscopic display device according to claim 5, wherein the first sensing strings and the second sensing strings are respectively located on the eighth surface and the seventh surface and are respectively in contact with the eighth surface and the seventh surface.

8. The touch stereoscopic display device according to claim 5, wherein the first sensing strings and the second sensing strings are respectively located on the eighth surface and the sixth surface and are respectively in contact with the eighth surface and the sixth surface.

9. The touch stereoscopic display device of claim 4, wherein the parallax barrier is used to switch the touch stereoscopic display device between a two-dimensional display mode and a three-dimensional display mode.

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