TWI588724B - Touch panel - Google Patents

Description

Touch panel 【0001】

The present invention relates to a sensing electrode of a touch panel, and more particularly to a sensing electrode of a touch panel that solves the problem of afterimage.

【0002】

Press, most of the early monitors are cathode ray tube (CRT) monitors, because of their large size and power consumption, and the radiation generated is harmful to the body for users who use the monitor for a long time. Therefore, the display on the market today will gradually replace the old CRT display with a liquid crystal display (LCD). In addition, liquid crystal displays have become the mainstream in the market due to their advantages of lightness, thinness, low radiation, and low power consumption.

[0003]

Moreover, as the industry is increasingly developed, digital devices such as mobile phones, digital cameras, notebook computers, and desktop computers are all moving toward more convenient, more functional, and more aesthetically pleasing directions. The display screens of these electronic products are An indispensable human-machine communication interface, and the display screen of the above products can bring more convenience to the user. In recent years, most mobile phones, digital cameras, digital cameras, and even notebook screens have been touched by touch panels.

[0004]

However, in the current trend of miniaturization of the panel size, the process of the boundary of the sensing electrode of the conventional touch panel is more difficult, and the pattern formation is difficult, which causes the boundary of the sensing electrode to be easily deviated. If the sensing electrode boundary is not uniform, the panel is used. There will be a residual shadow, resulting in a significant drop in display quality.

[0005]

Therefore, the present invention provides a touch panel to solve the above problem.

[0006]

It is an object of the present invention to provide a touch panel that utilizes a pattern of sensing electrodes to create an interference phenomenon that reduces the residual shadow seen by the naked eye.

【0007】

It is an object of the present invention to provide a refractive layer of a touch panel that is used in conjunction with a pattern of sensing electrodes to reduce the residual shadow seen by the naked eye.

[0008]

In order to achieve the above-mentioned various purposes and effects, the present invention discloses a touch panel comprising a substrate and a plurality of sensing electrodes. The sensing electrode has a first side edge and a second side edge, and the first side edge has a first zigzag shape, and the angle of the first sawtooth-shaped complex rising section and the complex falling section respectively with the first direction is 0~66∘, By sensing the pattern of the side of the electrode and the adjacent side of the hole, an interference image is generated, which reduces the residual image seen by the human eye.

【0009】

Furthermore, the second side of the sensing electrode may also exhibit a second zigzag shape, and the angle between the plurality of left-handed segments and the plurality of right-dipping segments of the second sawtooth shape and the second direction respectively is 0 to 78 ∘.

[0010]

In addition, the sensing electrode may further comprise a plurality of holes, each hole having a first adjacent side and a second adjacent side of the adjacent first adjacent side, and the angle between the first adjacent side and the first direction is 0~66∘, the first The angle between the two adjacent sides and the second direction is 0~78∘, and the interference image is generated by sensing the pattern of the side of the electrode and the adjacent side of the hole, thereby reducing the remaining shadow seen by the human eye.

10‧‧‧Substrate
20‧‧‧Sensing electrode
21‧‧‧ holes
30‧‧‧Reflective layer
40‧‧‧Optical adhesive
50‧‧‧Transparent substrate
A1‧‧‧ angle
A2‧‧‧ angle
A3‧‧‧ angle
A4‧‧‧ angle
AA‧‧‧ touch panel local area
DA‧‧‧Dummy electrode area
N1‧‧‧ first neighbor
N2‧‧‧ second neighbor
PA‧‧‧Photo District
S1‧‧‧ first side
S2‧‧‧ second side
W11‧‧‧ rising section
W12‧‧‧Descent
W21‧‧‧Right section
W22‧‧‧Left section
x‧‧‧First direction
Y‧‧‧second direction

[0011]

The first figure is a schematic diagram of an embodiment of the touch panel of the present invention;
The second figure is an enlarged view of the local area AA of the first touch panel;
The third figure is an enlarged view of another embodiment of the touch panel partial area AA of the first figure;
FIG. 4 is a schematic view showing an embodiment of a touch panel including a refractive layer of the present invention;
Fifth Figure: It is a schematic diagram of another embodiment of the fourth figure.

[0012]

In order to give your reviewers a better understanding and understanding of the features and effects of the present invention, please follow the description of the examples and the accompanying drawings, as explained below:

[0013]

Referring to the first figure, it is a schematic diagram of an embodiment of a touch panel of the present invention. As shown, the touch panel of the present invention includes a substrate 10 and a plurality of sensing electrodes 20. The sensing electrode 20 is disposed on the substrate 10, and the sensing electrode 20 is formed by patterning a transparent conductive layer. The material of the transparent conductive layer may be selected from indium tin oxide with good light transmittance and good conductivity. Oxide). In addition, the touch panel of the present invention further includes a plurality of pixel areas PA and a plurality of virtual electrode areas DA.

[0014]

The sensing electrode 20 patterned via the transparent conductive layer has a first side S1 and a second side S2 of the adjacent first side S1, and the first side S1 and the second side S2 are adjacent to the pixel area PA or virtual electrode area DA. The first side S1 presents a first zigzag shape, and the first saw tooth shape is composed of a plurality of rising sections W11 and a plurality of falling sections W12, and an angle A1 between each rising section W11 and a first direction x is 0~66∘, Each falling section W12 exhibits 0~66∘ in the same manner as the angle A3 of the first direction x, and the optimal design is 7∘ or more after the experiment; the second side S2 presents a second sawtooth shape, and the second sawtooth system The plurality of right-dip segments W21 and the plurality of left-dip segments W22 are formed, and the angle A2 between each right-dip segment W21 and a second direction y is 0-78∘, and the angle A4 between each left-dipping segment W22 and the second direction y is 0. ~78∘, after the experiment, the best design system is more than 7∘. The first direction x and the second direction y are conventional coordinate systems, and the difference between the two is 90 ∘.

[0015]

The touch panel of the present invention is provided with a patterned sensing electrode 20 on the substrate 10. The first side S1 and the second side S2 of the sensing electrode 20 are designed to generate interference images, which can effectively reduce the touch panel. The remaining shadow phenomenon to improve the display quality of the touch panel.

[0016]

Referring to the first figure and the second figure together, the second figure is an enlarged view of the local area AA of the first touch panel. As shown in the figure, the sensing electrode 20 of the touch panel of the present invention further includes a plurality of holes 21, each of the holes 21 having a first adjacent side N1 and a second adjacent side N2 of the adjacent first adjacent side N1, first The angle between the adjacent side N1 and the first direction x is 0~66∘, and the angle between the second adjacent side N2 and the second direction y is 0~78∘. Furthermore, the limitation of the number and position of the holes 21 must be considered in the design of the manufacturer IC. Therefore, the hole 21 of the touch panel of the present invention can be designed such that the first adjacent side N1 of the hole 21 is aligned with the first side S1, and is cut. The alignment means that the angle between the first adjacent side N1 of the hole 21 and the first direction x corresponds to the angle A1 of the first zigzag shape and the first direction x. It is not necessary that the first side edge N1 of the hole 21 is aligned with the first side edge S1, and the present invention can also provide a plurality of holes 21 in the inner region of the sensing electrode 20.

[0017]

In the above, referring to the third figure, it is an enlarged view of another embodiment of the touch panel partial area AA of the first figure. The third figure illustrates that the inner region of one of the sensing electrodes 20 has a plurality of holes 21, and the holes 21 also have a first adjacent side N1 and a second adjacent side N2. Similarly, the first adjacent side N1 is at an angle with the first direction x. It is 0~66∘, and the angle between the second adjacent side N2 and the second direction y is 0~78∘.

[0018]

Therefore, by providing the plurality of holes 21 in the sensing electrode 20, and forming the first adjacent side N1 and the second adjacent side N2 of the hole 21 at an angle with the first direction x and the second direction y, the reduced shadow of the present invention can be enhanced. The effect of the phenomenon, and reduce the phenomenon that the human eye sees the remaining shadow from the touch panel.

[0019]

Referring to the fourth figure, it is a schematic diagram of an embodiment of a touch panel comprising a refractive layer of the present invention. As shown in the figure, in addition to the substrate 10 and the sensing electrode 20, the touch panel of the present invention may further comprise a refractive layer 30, an optical adhesive 40, and a transparent substrate 50. The refractive layer 30 is disposed on the substrate 10 and sensed. Between the electrodes 20. The optical adhesive 40 covers the sensing electrode 20, and the transparent substrate 50 is attached to the optical adhesive 40. Therefore, the transparent substrate 50 is disposed on the sensing electrode 20 by the optical adhesive 40. The transparent substrate 50 can be a display component. The glass substrate is either a color filter substrate. The refractive layer 30 is used to change the refractive direction of the light, so that the light first enters the sensing electrode 20 through the refractive layer 30, and the refractive index of the refractive layer 30 can be adjusted according to the pattern of the sensing electrode 20, thereby effectively reducing the residual image phenomenon. .

[0020]

In addition, referring to the fifth figure, it is a schematic diagram of another embodiment of the fourth figure. As shown in the figure, the refractive layer 30 can also be disposed on the sensing electrode 20, and the transparent substrate 50 is disposed on the refractive layer 30 through the optical adhesive 40, wherein the refractive layer 30 has the same function as described above, and is changed by the refractive layer 30. The direction of refraction of the light passing through the sensing electrode 20 increases the degree of interference image, and can effectively reduce the residual shadow seen by the naked eye from the touch panel.

[0021]

In summary, the touch panel of the present invention comprises a substrate and a plurality of sensing electrodes, wherein the sensing electrodes are patterned by a transparent conductive layer and have a first side and a second side, and the first side presents a first side a zigzag shape, the first sawtooth-shaped complex rising section and the complex falling section respectively form an angle of 0 to 66 与 with the first direction, and the second side may also exhibit a second sawtooth shape, and the second sawtooth-shaped plural left-lead section And the right right inclined section forms an angle of 0~78∘ with the second direction respectively. In addition, the sensing electrode may further include a plurality of holes having a first adjacent side and a second adjacent side of the adjacent first adjacent side, the first adjacent side forming an angle of 0 to 66 与 with the first direction, and the second The adjacent side forms an angle of 0~78∘ with the second direction, and the interference image is generated by sensing the pattern of the side of the electrode and the adjacent side of the hole, thereby reducing the remaining shadow seen by the human eye. The touch panel of the present invention may further comprise a refractive layer, an optical adhesive material and a transparent substrate. The position of the refractive layer may be disposed between the substrate and the sensing electrode, or the substrate and the sensing electrode, and the transparent substrate is made of an optical adhesive. It is disposed on the sensing electrode, and the refractive layer is used to change the direction of light refraction, and the refractive index is adjusted with the sensing electrode pattern to increase the interference image and reduce the remaining shadow seen by the human eye.

10‧‧‧Substrate

20‧‧‧Sensing electrode

A1‧‧‧ angle

A2‧‧‧ angle

A3‧‧‧ angle

A4‧‧‧ angle

AA‧‧‧ touch panel local area

DA‧‧‧Dummy electrode area

PA‧‧‧Photo District

S1‧‧‧ first side

S2‧‧‧ second side

W11‧‧‧ rising section

W12‧‧‧Descent

W21‧‧‧Right section

W22‧‧‧Left section

x‧‧‧First direction

Y‧‧‧second direction

Claims (9)

A touch panel includes: a substrate; and a plurality of sensing electrodes disposed on the substrate, the sensing electrodes have a first side, and the first side is first in a first direction a zigzag shape, the first sawtooth shape has a plurality of rising segments and a plurality of descending segments, and each of the rising segments and the angle of each of the descending segments and the first direction are respectively 7 to 66 degrees; wherein each of the sensing The electrode has a plurality of holes, each of the holes having a first adjacent side and a second adjacent side adjacent to the first adjacent side, wherein the first adjacent side forms an angle of 0 to 66° with the first direction. The touch panel of claim 1, wherein the sensing electrodes have a second side, the second side has a second zigzag shape in a second direction, and the second sawtooth has a plurality of right-dip segments and a plurality of left-dip segments, wherein each of the right-dip segments and the angle between each of the left-dip segments and the second direction are respectively 7 to 78 degrees. The touch panel of claim 2, wherein each of the sensing electrodes has a plurality of holes, each of the holes having a first adjacent side and a second adjacent side adjacent to the adjacent side, The angle between the second adjacent side and the second direction is 7 to 78 degrees. The touch panel of claim 1, wherein the substrate and the sensing electrode further comprise a refractive layer. The touch panel of claim 4, further comprising an optical adhesive covering the sensing electrode, the transparent adhesive substrate being attached to the optical adhesive. The touch panel of claim 1, further comprising a refractive layer disposed on the sensing electrodes. The touch panel of claim 6, further comprising an optical adhesive covering the refractive layer, the transparent adhesive substrate being attached to the optical adhesive. The touch panel of claim 1, wherein the substrate is a glass substrate. The touch panel of claim 1, wherein the substrate is a color filter substrate.