TWI573061B - Touch display panel and touch display device using the same - Google Patents

Description

Touch display panel and touch display device using same

The present disclosure relates to a touch display panel and a touch display device, and more particularly to a touch display panel having an electrostatic venting function and a touch display device using the same.

With the advancement of technology, the operation of various electronic devices has become more intuitive and user-friendly. Among them, the use of touch-based technology to control various electronic devices is currently the most widely used operation mode. Therefore, the touch display device has become the most user-friendly and intuitive input operation interface, and users of all ages can directly use such devices with a finger or a stylus.

Currently, there is no electrostatic discharge design in the touch display device known in the market, which is susceptible to the electrostatic charge of the external environment, and if the electrostatic charge accumulated on the touch panel is not properly removed, The generated electric field may affect the function of the display medium layer (such as the liquid crystal layer), thereby causing the touch display device to become insensitive or even uncontrollable.

Therefore, there is a need for a touch display device capable of releasing an electrostatic charge accumulated on a touch panel in a timely manner.

The present disclosure provides a touch display panel, which can release an electrostatic charge accumulated on a touch display panel through an electrostatic venting layer, thereby reducing an electric field generated by an external electrostatic charge and affecting the function of the display medium layer, thereby improving device sensitivity and accuracy. Sexual effects and improve product yield.

The present disclosure provides a touch display panel comprising: a first substrate; a second substrate disposed opposite the first substrate; a display medium layer disposed between the first substrate and the second substrate; a sensing electrode layer is disposed on the first substrate; a grounding portion is disposed on the first substrate; and an electrostatic venting layer is disposed on the second substrate and electrically connected to the grounding portion, and The sheet resistance of the electrostatic venting layer is 10 ⁹ to 10 ¹² Ω/□.

In addition, the present disclosure further provides a touch display device including: a backlight module; and a touch display panel disposed on the backlight module; wherein the backlight module includes a metal frame, a light guide plate, and An optical film set having a receiving portion, the light guiding plate is disposed in the receiving portion and includes a light emitting surface, and the optical film group is disposed in the receiving portion and disposed on the light guiding plate The touch display panel includes a first substrate, a second substrate, a sensing electrode layer, a display medium layer, and an electrostatic venting layer. The second substrate is disposed opposite the first substrate, and the sensing electrode is disposed The layer and the display medium layer are disposed between the first substrate and the second substrate, the electrostatic venting layer is disposed on the second substrate, and the sheet resistance of the electrostatic venting layer is 10 ⁹ to 10 ¹² Ω/□; The metal frame is electrically connected to the electrostatic catharsis layer.

In addition, the present disclosure further provides a touch display device, including: a metal case having an accommodating space; a backlight module disposed in the accommodating space; and a touch display panel disposed on the The touch display panel includes a first substrate, a second substrate, a sensing electrode layer, a display dielectric layer, and an electrostatic venting layer, and the second substrate is coupled to the backlight module. The first substrate is oppositely disposed, the sensing electrode layer and the display medium layer are disposed between the first substrate and the second substrate, and the electrostatic venting layer is disposed on the second substrate and the sheet resistance of the electrostatic venting layer It is 10 ⁹ to 10 ¹² Ω/□; and the metal casing is electrically connected to the electrostatic catharsis layer.

The backlight module includes a frame body, a light guide plate and an optical film set. The frame body has a receiving portion. The light guide plate is disposed in the receiving portion and includes a light emitting surface, and the optical film group Located in the accommodating portion and disposed on the light emitting surface of the light guide plate.

In one aspect, the touch display panel may further include a first polarizing plate disposed on the second substrate, and the electrostatic venting layer is disposed on at least one surface of the first polarizing plate.

In one aspect, the touch display panel may further include a cover glass disposed on the second substrate, and the electrostatic venting layer and the first polarizing plate are located on the protective glass and the first Between the two substrates.

In one aspect, the first polarizer has a lug portion connected to the ground portion.

In one aspect, the sensing electrode layer further includes a common electrode disposed on the first substrate, and the ground portion is electrically connected to the common electrode.

In one aspect, the touch display panel further includes a flip chip disposed on the first substrate, the flip chip is electrically connected to the common electrode, and the ground portion is disposed on the flip chip On the film.

In one aspect, the touch display panel further includes a printed circuit board electrically connected to the printed circuit board, and the grounding portion is located on the printed circuit board.

In one aspect, the electrostatic venting layer can comprise a conductive polymer, a transparent conductive oxide, a metal, a carbon nanotube, graphene, or a combination thereof.

In one aspect, the touch display panel further includes a second polarizing plate disposed on the first substrate.

Accordingly, the electrostatic venting layer having a specific sheet resistance value range can be disposed to eliminate the electrostatic charge function accumulated on the touch panel, thereby maintaining the sensitivity and accuracy of the touch display device control. Therefore, the disclosure is suitable for use in a touch display panel and a touch display device.

100,200,300,400,500,600,700‧‧‧ touch display device

1,3,5,7,7',7",9‧‧‧ touch display panel

11,31,51,71,71',71",91‧‧‧first substrate

111, 311, 511, 711, 711', 711", 911 ‧ ‧ sensing electrode layer

311', 511'‧‧‧ connection pads

112,312,512,712,912‧‧‧ Grounding

314,514,914‧‧‧Chip film

915‧‧‧Printed circuit board

12,32,52,72,72',72",92‧‧‧second substrate

13,33,53,73,73',73",93‧‧‧ Display medium layer

14,34,54,74,74’,74”,94‧‧‧first polarizer

141, 341, 541 ‧ ‧ lugs

15,35,55,75,75’,75”,95‧‧‧electrostatic catharsis

16,36,56,76,76’,76”,96‧‧‧protective glass

17,37,57,77,77’,77”,97‧‧‧second polarizer

78,78’,78”,98‧‧‧Electrical tape

2,4,6,8,8’,8”,10‧‧‧Backlight Module

21,41,61,81,81", 101‧‧‧ frame

81"‧‧‧Metal frame

211,411,611,811’,811”‧‧‧ ‧ Included

22,42,62,82,82’,82”,102‧‧‧frame

23,43,63,83’,83”‧‧‧Light guide

231,431,631,831’, 831”‧‧‧

24,44,64,84,84’,84”,104‧‧‧Optical diaphragm group

80"‧‧‧Metal casing

801”‧‧‧ accommodating space

L‧‧‧Length length

W‧‧‧ Width of the lug

1A is a perspective view of a touch display device according to an embodiment of the present disclosure.

FIG. 1B is a schematic side view of a touch display device according to an embodiment of the present disclosure.

2A is a side view of a touch display device according to an embodiment of the present disclosure.

2B is a schematic side view of a touch display device according to an embodiment of the present disclosure.

3 is a perspective view of a touch display device according to an embodiment of the present disclosure.

4 is a perspective view of a touch display device according to an embodiment of the present disclosure.

FIG. 5 is a schematic side view of a touch display device according to an embodiment of the present disclosure.

FIG. 6 is a schematic side view of a touch display device according to an embodiment of the present disclosure.

The components, components, and configurations of the touch display panel may be increased, decreased, modified, or adjusted according to the needs of those skilled in the art, and the disclosure is not limited thereto.

In addition, the terms used in the specification and the claims, such as the terms "first", "second", etc., are used to modify the elements of the claim, which are not intended to represent and represent any preceding ordinal number of the requesting element. Does not represent the order of a request element and another request element, or the manufacturing method In order, the use of these ordinals is only used to make a request element with a certain name distinguishable from another request element with the same name.

In the present disclosure, as long as the electrostatic venting layer is located on the second substrate, the position of the electrostatic venting layer is not particularly limited. For example, the electrostatic venting layer may be disposed between the second substrate and the display medium layer. The second substrate and the first polarizing plate may be disposed between the first polarizing plate and the protective glass, or more than one layer of the electrostatic venting layer may be disposed on the display medium layer, and the electrostatic venting layers may be phased The adjacent stacks may also be respectively disposed at the above positions, and the disclosure is not particularly limited thereto. Furthermore, as described above, the sheet resistance of the electrostatic venting layer ranges from 10 ⁹ to 10 ¹² Ω/□, which can prevent external electrostatic charge from accumulating on the panel to generate an electric field and interfere with the display medium, thereby affecting the touch sensitivity and accuracy of the device. Sex. In the present disclosure, when the resistance value of the sheet is lower than 10 ⁹ Ω/□, it may interfere with the sensitivity of the touch panel, and when it is higher than 10 ¹² Ω/□, the electrostatic discharge may not be achieved ( Electrostatic Discharge (ESD) protection. Preferably, the electrostatic venting layer has a sheet resistance value ranging from 10 ⁹ to 10 ¹⁰ Ω/□.

In the present disclosure, the unit "Ω/□" of the sheet resistance refers to an ohmic value per unit area, and may also be expressed as "ohm/sq".

As described above, as long as the sheet resistance of the electrostatic venting layer of the present disclosure falls within the above disclosure, the electrostatic venting layer can be made of any material, and the disclosure is not particularly limited thereto. As the materials listed above, the electrostatic venting layer may include a conductive polymer, a transparent conductive oxide (TCO), a metal, a carbon nanotube, a graphene, or a combination thereof. More specifically, the conductive polymer It can be poly(3,4-ethylenedioxythiophene): poly(3,4-ethylenedioxythiophene: poly(styrenesulfonate), PEDOT:PSS), polyaniline (PANI) , Polyacetylene (PAc), polypyrrole, poly(thiophene), PT, poly(p-phenylene vinylene), PPV, polyfluorene (PF) , polyphenylene, poly(p-phenylene sulfide, PPS), or other polymers having conductive properties. The transparent conductive oxide may be indium tin oxide (ITO) or indium oxide. Zinc (IZO), indium Oxide (In ₂ O ₃ ), tin dioxide (SnO ₂ ), zinc oxide (ZnO), cadmium oxide (CdO), aluminum zinc oxide (AZO), antimony tin oxide (ATO) , or other transparent conductive oxide. The metal can be various nano metal particles or wires, such as nano silver particles, nano gold particles, nano silver Silk and so on.

In the present disclosure, as long as the electrostatic venting layer having the above-mentioned sheet resistance value range can be appropriately disposed in the touch display panel and does not affect the functions of other components, those skilled in the art can select an electrostatic venting layer according to the selected one. The material and the overall process conditions are set by any conventional technique, and the disclosure is not particularly limited thereto. For example, when the conductive polymer is used as the material to prepare the electrostatic catharsis layer, the conductive polymer can be heated or melted or dissolved in a suitable solvent and prepared by various applicable polymer coating methods, such as dip. Coating method, spin coating method, roll coating method, blade coating method, spray coating method, etc., but the disclosure is not limited thereto. When an inorganic material such as a transparent conductive oxide, a metal, a carbon nanotube, or a graphene is used, the electrostatic venting layer can be prepared by a known coating technique, such as an evaporation method, a sputtering method, an ion beam evaporation method, or the like. Alternatively, the inorganic material may be dispersed in a suitable solvent to prepare the electrostatic venting layer by the above coating method (such as spraying), but the disclosure is not limited thereto. Suitable solvents mentioned above may include: water; alcohols such as methanol, ethanol, isopropanol, etc.; ethers such as methyl tert-butyl ether, etc.; combinations thereof or other suitable organic or inorganic solvents, such as N-heptane, cyclohexane, ethyl acetate, and the like, the disclosure is not limited thereto. In addition, the selection of the preparation method and the process parameters thereof also need to consider the process conditions of the electrostatic venting layer, for example, when the electrostatic venting layer is directly formed on one of the components of the touch display panel (such as the second substrate, the first polarizing plate, When protecting the glass, etc., it should be noted that the preparation method selected may not impair the properties of the component itself, for example, directly formed on the first polarizing plate, in view of the first polarizing plate itself. The characteristics of the polymer material should be dip coating, spin coating, roller coating, blade coating or spraying, and when the electrostatic catharsis layer is directly formed on the protective glass, coating can be used. Technology or coating technology. Furthermore, the electrostatic venting layer may be separately formed, and the electrostatic venting layer may be disposed on the touch display panel, for example, by using a suitable coating method or a coating method on a glass substrate or a release film. The required electrostatic venting layer is transferred to the touch display panel, but the disclosure is not limited thereto.

As described above, the electrostatic venting layer can be electrically connected to the grounding portion of the touch display device or any component capable of discharging an electrostatic charge (such as a metal casing or a metal casing) through various means. The electrical connection may be performed by using various materials having conductive properties, such as conductive wires, conductive tapes, conductive adhesives, etc., or, if the electrostatic venting layer itself has viscosity, the electrostatic venting layer may be electrically connected. For example, the electrostatic venting layer is applied to one surface or both surfaces of the first polarizing plate having the lug portion through the coating method, and then the electrostatic venting layer through the lug portion is electrically connected to a ground portion, that is, It can achieve the effect of ESD protection. In this case, the polarizing portion of the first polarizing plate may be disposed on the second substrate, the lug portion may be disposed at a periphery of the polarizing portion, and the polarizing portion and the lug portion may be integrally formed.

In the disclosure, the first polarizing plate may include more than one lug portion, and those skilled in the art may adjust the length and width of the lug portion according to the requirements of the device. For example, the length of the lug portion may be It is 0.3 mm to 12 mm, and the width of the lug portion may be 0.3 mm to 12 mm, but the disclosure is not particularly limited thereto.

In the present disclosure, the conductive wire may be a wire, an enameled wire, or other conventional electrically conductive material. The conductive paste may be a tape of a conductive material with a copper foil or an aluminum foil. The conductive paste may be a gel having particles of various conductive materials such as gold, silver, copper, or aluminum.

In the disclosure, the display medium layer may include various possible display media, such as liquid crystal (LC), light-emitting diode (LED), and organic light-emitting diode (organic). A light-emitting diode (OLED), etc., may be selected by a person having ordinary skill in the art according to the requirements of the display panel. The disclosure is not limited thereto.

In the disclosure, the first substrate and the second substrate may be substrates of various conventional display panels, such as a thin film transistor substrate, a color filter substrate, and the like. The substrate can be prepared from various known materials (e.g., polymers, glass, etc.) and conventional methods.

In the present disclosure, the flip chip may be a conventional chip for use in a display device, as long as the flip chip has a ground portion that can be electrically connected to the electrostatic vent layer, and the material and structure thereof are not particularly affected. limit. In addition, the connection between the flip chip and the sensing electrode layer is not limited, and various conventional connection methods can be employed. Similarly, the printed circuit board can also be used in various printed circuit boards used in display devices, as long as the printed circuit board has a grounding portion that can be electrically connected to the electrostatic venting layer, and the material and structure thereof are not particularly limited. . In addition, the positional relationship between the sensing electrode layer, the flip chip, and the printed circuit board may be connected in various manners. For example, the grounding portion of the flip chip may be electrically connected to the sensing electrode. The grounding portion of the layer or other connecting pads electrically connected to the sensing electrode layer may be electrically connected to the grounding portion of the sensing electrode layer through a wire or a line. The disclosure is not limited thereto.

In the present disclosure, when the frame for accommodating the components such as the light guide plate or the housing for accommodating the backlight module and the touch display panel is a metal product, the electrostatic venting layer may be electrically connected to the frame or the The outer casing also achieves the effect of releasing the accumulated electrostatic charge. For example, the frame or the outer casing may be made of aluminum, iron, magnesium, an alloy thereof or a combination thereof, but the disclosure is not particularly effective as long as it can be electrically connected to the electrostatic venting layer to achieve the effect of releasing the accumulated electrostatic charge. Limit the composition of the frame and the outer casing.

The embodiments of the present disclosure are described below by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the disclosure. In addition, the present disclosure may be implemented or applied in various other specific embodiments without departing from the spirit and scope of the invention.

Example 1

Please refer to FIG. 1A and FIG. 1B , which is a perspective view and a side view of a touch display device 100 according to a first embodiment of the present disclosure. The touch display panel 1 and a backlight module 2 are included. The control display panel 1 is disposed on the backlight module 2. The touch display panel 1 of the first embodiment includes: a first substrate 11; a second substrate 12 disposed opposite the first substrate 11; a display dielectric layer 13 disposed on the first substrate 11 and the Between the second substrate 12 and a liquid crystal layer, a sensing electrode layer 111 is disposed on the first substrate 11 and the sensing electrode layer 111 includes a common electrode (not shown) and a pixel electrode (Fig. A grounding portion 112 is disposed on the first substrate 11 and the grounding portion 112 is electrically connected to the common electrode. A first polarizing plate 14 is disposed on the second substrate 12 and has a connection. a lug portion 141 of the grounding portion 112; an electrostatic venting layer 15 disposed on a surface of the first polarizing plate 14 facing the second substrate 12 and having a sheet resistance of 10 ⁹ to 10 ¹² Ω/□; a protective glass 16 disposed on the second substrate 12, and the electrostatic venting layer 15 and the first polarizing plate 14 are located between the protective glass 16 and the second substrate 12; The polarizing plate 17 is disposed on the first substrate 11. The backlight module 2 of the present embodiment includes a frame body 21, a plurality of frame strips 22, a light guide plate 23, and an optical film group 24. The frame body 21 has a receiving portion 211, and the frame strips 22 are along the frame. The light guide plate 23 is disposed in the accommodating portion 211, and the light guide plate 23 includes a light emitting surface 231, and the optical film group 24 is disposed in the accommodating portion 211 and is disposed. On the light-emitting surface 231 of the light guide plate 23.

In the first embodiment, the first substrate 11 can be any conventional substrate material, such as glass, and the sensing electrode layer 111 can be any electrode material for a display panel, such as the aforementioned transparent conductive oxide film ( Such as indium tin oxide, etc.), but the disclosure is not particularly limited thereto.

In the first embodiment, the first polarizing plate 14 and the lug portion 141 thereof are integrally formed, and the electrostatic venting layer 15 is disposed on the first polarizing plate 14 and the lug portion 141. On the entire surface. As shown in FIG. 1A and FIG. 1B, the electrostatic venting layer 15 is partially interposed between the first polarizing plate 14 and the second substrate 12, and at least a portion of the electrostatic vent layer 15 of the lug portion 141 is adjacent to the portion. The lug portion 141 and the ground portion 112 achieve the effect of releasing the electrostatic charge accumulated on the first polarizing plate 14.

In the first embodiment, the electrostatic venting layer 15 has a viscosity, so that it can be directly electrically connected to the grounding portion 112. In the present disclosure, the shape of the lug portion 141 is not particularly limited, and those skilled in the art may use or design various shapes to meet the needs thereof, and the disclosure is not particularly limited thereto. Preferably, in the first embodiment, the shape of the lug portion 141 may be elongated. Furthermore, considering the thickness of the display medium layer 13 and the second substrate 12, those skilled in the art can appropriately adjust the length of the lug portion 141 according to the needs thereof (ie, protrude from the first polarizing plate 14). The length is such that the lug portion 141 is excessively protruded or is not properly electrically connected to the ground portion 112. Preferably, in the first embodiment, the length L of the lug portion 141 may be 0.3 mm to 12 mm. In addition, the width of the lug portion 141 can also be changed according to requirements, and the disclosure is not limited thereto. Preferably, in the first embodiment, the width W of the lug portion 141 may be 0.3 mm to 12 mm.

In the first embodiment, the electrostatic venting layer 15 may be a solution having a conductive polymer (such as PEDOT:PSS) or containing the aforementioned inorganic substances (such as ITO, IZO, ATO, or the like by spraying or knife coating). A solution of a nanosilver, a carbon nanotube, a graphene or the like is applied to one surface of the first polarizing plate 14 and dried.

In addition, in the first embodiment, the protective glass 16 is attached to the first polarizing plate 14 through an optical adhesive. However, the conventional polarizing plate (also referred to as a frame paste) may be used to set the protective glass 16 . The protective glass 16 is not limited to this disclosure.

Accordingly, the touch display device 100 of the first embodiment has an electrostatic venting layer 15 having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the ground portion 112, through which the electrostatic vent layer 15 can be Accumulated electrostatic charge release, thereby achieving the effect of improving the touch sensitivity and accuracy of the device, and since the first polarizing plate 14 has the lug portion 141 and the electrostatic venting layer 15 has adhesiveness, it can be directly electrically connected to The grounding portion 112 on the first substrate 11 can electrically connect the electrostatic venting layer 15 to the grounding portion 112 without additional processes and components, thereby simplifying the overall touch display panel process and improving product yield.

Example 2

Please refer to FIG. 2A , which is a side view of the touch display device 200 according to the second embodiment of the present disclosure. The second embodiment is similar to the first embodiment, as shown in FIG. 2A. The difference is that the touch display panel 3 of the second embodiment further includes a flip chip 314. In more detail, the flip chip 314 is disposed on the first substrate 31, and the flip chip 314 is electrically connected to the common electrode included in the sensing electrode layer 311 through a connection pad 311' (not shown). The grounding portion 312 is disposed on the flip chip 314.

As shown in FIG. 2A , the touch display device 200 of the second embodiment includes a touch display panel 3 and a backlight module 4 , and the touch display panel 3 is located on the backlight module 4 . In this embodiment, the touch display panel 3 includes a first substrate 31, a second substrate 32 disposed opposite the first substrate 31, and a display dielectric layer 33 disposed on the first substrate 31. And the second substrate 32 is a liquid crystal layer; a sensing electrode layer 311 is disposed on the first substrate 31 and the sensing electrode layer 311 comprises a common electrode and a pixel electrode (not shown) a flip chip 314 is disposed on the first substrate 31, the flip chip 314 is electrically connected to the common electrode through a connection pad 311'; a grounding portion 312 is disposed on the flip chip 314; The first polarizing plate 34 is disposed on the second substrate 32 and has a lug portion 341 connected to the grounding portion 312. An electrostatic venting layer 35 is disposed on the first polarizing plate 34 facing the second substrate 32. On one surface, the sheet resistance of the electrostatic venting layer 35 is 10 ⁹ to 10 ¹² Ω/□; a protective glass 36 is disposed on the second substrate 32, and the electrostatic vent layer 35 and the first polarizing plate 34 is located between the protective glass 36 and the second substrate 32; and a second polarizing plate 37 is disposed on On the first substrate 31, the electrostatic venting layer 35 is partially interposed between the first polarizing plate 34 and the second substrate 32, and the electrostatic vent layer 35 located at the lug portion 341 is at least partially adjacent. The lug portion 341 and the ground portion 312. Similar to the first embodiment, the backlight module 4 of the second embodiment includes a frame 41, a plurality of frame strips 42, a light guide plate 43 and an optical film set 44. The frame 41 has a receiving portion 411. The frame strips 42 are disposed along the side of the accommodating portion 411. The light guide plate 43 is disposed in the accommodating portion 411, and the light guide plate 43 includes a light emitting surface 431, and the optical film group 44 is located. The accommodating portion 411 is disposed on the light-emitting surface 431 of the light guide plate 43.

Therefore, the electrostatic venting layer of the present disclosure can also achieve the effect of releasing the accumulated electrostatic charge by electrically connecting to the grounding portions at different positions.

Accordingly, since the touch display device 200 of the second embodiment has an electrostatic vent layer 35 having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the ground portion, the electrostatic vent layer 35 can be transmitted through the electrostatic vent layer 35. Accumulated electrostatic charge release, thereby achieving the effect of improving the touch sensitivity and accuracy of the device, and since the first polarizing plate 34 has the lug portion 341 and the electrostatic venting layer 35 has adhesiveness, it can be directly electrically connected to The grounding portion 312 of the first substrate 31 can electrically connect the electrostatic venting layer 35 to the grounding portion 312 without additional processes and components, thereby simplifying the overall touch display panel process and improving product yield.

The other components and configurations of the second embodiment are similar to those of the first embodiment, and will not be described again.

Example 3

Please refer to FIG. 2B , which is a side view of the touch display device 300 according to Embodiment 3 of the present disclosure. The embodiment 3 is similar to the embodiment 2, as shown in FIG. 2B, the difference is that the electrostatic venting layer 55 of the embodiment 3 is disposed on the other surface of the first polarizing plate 54, and is the touch display of the embodiment 3. The device 300 can electrically connect at least a portion of the electrostatic vent layer 55 located on the lug portion 541 to the ground through the electrostatic vent layer 55 on the surface of the first polarizing plate 54 facing the protective glass in different bending manners. The portion 512 is used to achieve the effect similar to the touch display device 300 of the second embodiment.

As shown in FIG. 2B , the touch display device 300 of the third embodiment includes a touch display panel 5 and a backlight module 6 , and the touch display panel 5 is located on the backlight module 6 . In the present embodiment, the touch display panel 5 includes a first substrate 51, a second substrate 52 disposed opposite the first substrate 51, and a display dielectric layer 53 disposed on the first substrate 51. And the second substrate 52 is a liquid crystal layer; a sensing electrode layer 511 is disposed on the first substrate 51 and the sensing electrode layer 511 comprises a common electrode and a pixel electrode (not shown) a flip chip 514 is disposed on the first substrate 51, the flip chip 514 is electrically connected to the common electrode through a connection pad 511'; a grounding portion 512 is disposed on the flip chip 514; a first polarizing plate 54 is disposed on the second substrate 52 and has a lug portion 541 connected to the grounding portion 512. An electrostatic venting layer 55 is disposed on both surfaces of the first polarizing plate 54 and the The electrostatic venting layer 55 has a sheet resistance of 10 ⁹ to 10 ¹² Ω/□; a protective glass 56 is disposed on the second substrate 52, and the electrostatic vent layer 55 and the first polarizing plate 54 are located on the protective glass 56. And the second substrate 52; and a second polarizing plate 57 disposed on the first substrate 51; Located in the electrostatic the ledge portion 541 of the vent adjacent to the at least a portion of the lug portion 541 and the grounding portion 55 based layer 512. Similar to the second embodiment, the backlight module 6 includes a frame body 61, a plurality of frame strips 62, a light guide plate 63, and an optical film set 64. The frame body 61 has a receiving portion 611, and the frame strips The light guide plate 63 is disposed in the accommodating portion 611 and includes a light emitting surface 631. The optical film group 64 is disposed in the accommodating portion 611 and disposed on the 316. The light guide surface 63 of the light guide plate 63 is on the light exit surface 631.

Therefore, the electrostatic venting layer of the present disclosure can also achieve the effect of releasing the accumulated electrostatic charge by electrically connecting to the grounding portions at different positions.

Accordingly, since the touch display device 300 of the third embodiment has an electrostatic vent layer 55 having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the ground portion, the electrostatic vent layer 55 can be transmitted through the electrostatic vent layer 55. The accumulated electrostatic charge is released, thereby achieving the effect of improving the touch sensitivity and accuracy of the device, and since the first polarizing plate 54 has the lug portion 541 and the electrostatic venting layer 55 has adhesiveness, it can be directly electrically connected to The grounding portion 512 of the first substrate 51 can electrically connect the electrostatic venting layer 55 to the grounding portion 512 without additional processes and components, thereby simplifying the overall touch display panel process and improving product yield.

The other components and configurations of the third embodiment are similar to those of the second embodiment, and will not be described again.

Example 4

Please refer to FIG. 3 , which is a perspective view of a touch display device 400 according to Embodiment 4 of the present disclosure. Embodiment 4 is substantially similar to Embodiment 1, except that the electrostatic venting layer is disposed in a different manner from the grounding portion. More specifically, the electrostatic venting layer 75 of the fourth embodiment is formed by coating the inorganic material (such as ITO or IZO) on the protective glass 76 toward the first polarizing plate 74 by a coating method (such as vapor deposition, sputtering, or the like). The electrostatic venting layer 75 and the grounding portion are electrically connected to the surface through a conductive tape 78. 712. However, in other embodiments, the electrostatic venting layer 75 may also be formed on the surface of the second substrate 72 facing the first polarizing plate 74 through a coating method.

As shown in FIG. 3 , the touch display device 400 of the fourth embodiment includes a touch display panel 7 and a backlight module 8 , and the touch display panel 7 is located on the backlight module 8 . In this embodiment, the touch display panel 7 includes a first substrate 71, a second substrate 72 disposed opposite the first substrate 71, and a display dielectric layer 73 disposed on the first substrate 71. And the second substrate 72 is a liquid crystal layer; a sensing electrode layer 711 is disposed on the first substrate 71 and the sensing electrode layer 711 comprises a common electrode (not shown) and a pixel electrode. (not shown); a grounding portion 712 is disposed on the first substrate 71 and the grounding portion 712 is electrically connected to the common electrode; a first polarizing plate 74 is disposed on the second substrate 72; The electrostatic venting layer 75 is located above the first polarizing plate 74. The sheet resistance of the electrostatic venting layer 75 is 10 ⁹ to 10 ¹² Ω/□, and the thickness of the electrostatic venting layer 75 is between 10 Å and 100 Å. a protective glass 76 is disposed on the second substrate 72, and the electrostatic venting layer 75 and the first polarizing plate 74 are located between the protective glass 76 and the second substrate 72; and a second polarizing plate 77 And disposed on the first substrate 71; wherein the electrostatic vent layer 75 is electrically connected to the interface through a conductive tape 78 Ground 712. The backlight module 8 of the fourth embodiment is the same as that of the first embodiment, and details are not described herein again.

The other components and configurations of the fourth embodiment are similar to those of the first embodiment, and are not described herein again.

Accordingly, since the touch display device 400 of the fourth embodiment has an electrostatic vent layer 75 having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the ground portion, the electrostatic vent layer 75 can be transmitted through the electrostatic vent layer 75. The accumulated electrostatic charge is released, thereby achieving the effect of improving the touch sensitivity and accuracy of the device.

Example 5

Please refer to FIG. 4 , which is a perspective view of a touch display device 500 according to Embodiment 5 of the present disclosure. Embodiment 5 is substantially similar to Embodiment 4 except that the position of the ground portion electrically connected to the electrostatic vent layer is different, and more specifically, the ground portion is disposed on a printed circuit board.

As shown in FIG. 4 , the touch display device 500 of the embodiment 5 includes a touch display panel 9 and a backlight module 10 , and the touch display panel 9 is located on the backlight module 10 . In this embodiment, the touch display panel 9 includes a first substrate 91, a second substrate 92 disposed opposite the first substrate 91, and a display dielectric layer 93 disposed on the first substrate 91. And the second substrate 92 is a liquid crystal layer; a sensing electrode layer 911 is disposed on the first substrate 91 and the sensing electrode layer 911 comprises a common electrode (not shown) and a pixel electrode (a picture is not shown); a flip chip 914 is disposed on the first substrate 91; a printed circuit board 915, the flip chip 914 is electrically connected to the printed circuit board 915 and the common electrode; a grounding portion 912, The first polarizing plate 94 is disposed on the second substrate 92; an electrostatic vent layer 95 is disposed above the first polarizing plate 94 and the electrostatic venting layer 95 is disposed on the printed circuit board 915. The sheet resistance is 10 ⁹ to 10 ¹² Ω/□; a protective glass 96 is disposed on the second substrate 92, and the electrostatic venting layer 95 and the first polarizing plate 94 are located on the protective glass 96 and the second substrate. And a second polarizing plate 97 disposed on the first substrate 91; wherein the static Vent 95 is connected to the grounding layer 912 through the portion 98 a electrically conductive tape. The backlight module 10 of the embodiment 5 is the same as that of the embodiment 4, and details are not described herein again.

Accordingly, since the touch display device 500 of the fifth embodiment has an electrostatic venting layer 95 having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the ground portion, the electrostatic venting layer 95 can be transmitted through the electrostatic venting layer 95. The accumulated electrostatic charge is released, thereby achieving the effect of improving the touch sensitivity and accuracy of the device.

Example 6

Please refer to FIG. 5 , which is a side view of a touch display device 600 according to Embodiment 6 of the present disclosure. Embodiment 6 is substantially similar to Embodiment 4 except that the frame system of the backlight module of Embodiment 6 is a metal product as a ground portion electrically connected to the electrostatic vent layer.

As shown in FIG. 5, the touch display device 600 of the embodiment 6 includes: a backlight module 8'; and a touch display panel 7' located on the backlight module 8'; wherein the backlight module 8' includes a metal frame 81', a plurality of frame bars 82', a light guide plate 83', and an optical film set 84'. The metal frame 81' has a receiving portion 811', and the frame strips 82 The light guide plate 83 ′ is disposed in the accommodating portion 811 ′ and the light guide plate 83 ′ includes a light emitting surface 831 ′, and the optical film group 84 ′′ is disposed around the side of the accommodating portion 811 ′. The touch display panel 7' includes a first substrate 71', a second substrate 72', and a sensing electrode layer. The touch display panel 7' is disposed on the light-emitting surface 831'. 711', a display medium layer 73', a first polarizing plate 74', an electrostatic venting layer 75', a protective glass 76' and a second polarizing plate 77', the second substrate 72' and the first substrate The first electrode substrate 74 ′ is disposed between the first substrate 71 ′ and the second substrate 72 ′, and the first polarizing plate 74 ′ is disposed on the second substrate 72 . 'Up, the electrostatic catharsis layer 75' A first polarizer disposed in the sheet resistance of 74 and above the static vent layer 73 'is of ¹⁰⁹ to 10 ¹² Ω / □, the protective glass 76' is provided to vent the electrostatic layer 75 ', the polarizer and the second The plate 77' is disposed on an opposite side of the first substrate 71' facing the display medium layer 73'; and the metal frame 81' is electrically connected to the electrostatic vent layer 75' through a conductive tape 78'.

In the present embodiment, the metal frame 81' is a metal product made of aluminum or iron. However, other metals commonly used in the art for preparing the backlight module frame may be selected, and the disclosure is not limited thereto. this.

Therefore, the touch display device 600 of the sixth embodiment has an electrostatic venting layer 75' having a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and electrically connected to the metal frame 81 ′ as a ground portion. The electrostatic venting layer 75' can release the accumulated electrostatic charge, thereby achieving the effect of improving the touch sensitivity and accuracy of the device.

Example 7

Please refer to FIG. 6 , which is a side view of a touch display device 700 according to Embodiment 7 of the present disclosure. The seventh embodiment is substantially similar to the sixth embodiment. The difference is that the seventh embodiment uses the metal casing that houses the touch display panel and the backlight module as a grounding portion electrically connected to the electrostatic venting layer to release the accumulated electrostatic charge. .

As shown in FIG. 6 , the touch display device 700 of the seventh embodiment includes a metal casing 80 ′′ having an accommodating space 801 ′′; and a backlight module 8 ′′ disposed in the accommodating space 801 ′′. And a touch display panel 7" disposed in the accommodating space 801" and located on the backlight module 8"; wherein the backlight module 8" includes a frame 81" and a plurality of frame strips 82 , a light guide plate 83" and an optical film set 84", the frame body 81" has a receiving portion 811", the frame strips 82" are disposed around the side of the receiving portion 811", The light guide plate 83 ′′ is disposed in the accommodating portion 811 ′′ and the light guide plate 83 ′′ includes a light emitting surface 831 ′′, and the optical film group 84 ′′ is located in the accommodating portion 811 ′′ and is disposed on the light guide plate 83 ” The touch display panel 7" includes a first substrate 71", a second substrate 72", a sensing electrode layer 711", a display dielectric layer 73", and a first polarizing plate 74. ", an electrostatic venting layer 75", a protective glass 76" and a second polarizing plate 77", the second substrate 72" is opposite to the first substrate 71" The sensing electrode layer 711" and the display dielectric layer 73" are disposed between the first substrate 71" and the second substrate 72". The first polarizing plate 74" is disposed on the second substrate 72". The venting layer 75" is disposed on the first polarizing plate 74" and the sheet resistance of the electrostatic venting layer 73" is 10 ⁹ to 10 ¹² Ω / □, and the protective glass 76" is disposed on the electrostatic venting layer 75", and The second polarizing plate 77" is disposed on an opposite side of the first substrate 71" facing the display medium layer 73"; and the metal casing 80" is electrically connected to the electrostatic venting layer 75 through a conductive tape 78"".

In the present embodiment, the metal casing 80" is a metal product made of iron. However, other metals commonly used in the art for preparing the outer casing of the display device are also optional, and the disclosure is not limited thereto.

Therefore, since the touch display device 700 of the seventh embodiment has a sheet resistance value ranging from 10 ⁹ to 10 ¹² Ω/□ and is electrically connected to the electrostatic vent layer 75 ” of the metal case 80 ′′ as a ground portion, The electrostatic venting layer 75" can release the accumulated electrostatic charge, thereby improving the touch sensitivity and accuracy of the device.

The above-described embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

100‧‧‧Touch display device

1‧‧‧Touch display panel

11‧‧‧First substrate

111‧‧‧Induction electrode layer

112‧‧‧ Grounding Department

12‧‧‧second substrate

13‧‧‧Display media layer

14‧‧‧First polarizer

141‧‧ ‧ Ears

15‧‧‧Electrostatic venting layer

16‧‧‧protective glass

17‧‧‧Second polarizer

2‧‧‧Backlight module

21‧‧‧ frame

211‧‧‧ 容 部

22‧‧‧Box

23‧‧‧Light guide plate

231‧‧‧Glossy

24‧‧‧Optical diaphragm group

Claims (16)

A touch display panel includes: a first substrate; a second substrate disposed opposite the first substrate; a display dielectric layer disposed between the first substrate and the second substrate; and an inductive electrode a layer disposed on the first substrate; an electrostatic venting layer disposed on the second substrate, wherein the electrostatic venting layer has a sheet resistance of 10 ⁹ to 10 ¹² Ω/□; and a ground portion, the setting The electrostatic venting layer is electrically connected to the first substrate. The touch display panel of claim 1, further comprising a first polarizing plate disposed on the second substrate, wherein the electrostatic venting layer is disposed on at least one surface of the first polarizing plate. The touch display panel of claim 2, further comprising a protective glass disposed on the second substrate, wherein the electrostatic venting layer and the first polarizing plate are located on the protective glass and the second substrate between. The touch display panel of claim 2, wherein the first polarizer has a lug portion connected to the ground portion. The touch display panel of claim 1, wherein the sensing electrode layer further comprises a common electrode, and the grounding portion is electrically connected to the common electrode. The touch display panel of claim 5, further comprising a flip chip, which is disposed on the first substrate, the flip chip is electrically connected to the common electrode, and the ground portion is disposed on the cover On the crystal film. The touch display panel of claim 6, further comprising a printed circuit board, the flip chip connecting the printed circuit board and the first substrate, and the grounding portion is located on the printed circuit board. The touch display panel of claim 1, wherein the electrostatic venting layer comprises a conductive polymer, a transparent conductive oxide, a metal, a carbon nanotube, a graphene, or a combination thereof. The touch display panel of claim 1, further comprising a second polarizing plate disposed on the first substrate. A touch display device includes: a backlight module; and a touch display panel disposed on the backlight module; wherein the backlight module includes a metal frame, a light guide plate, and an optical film set. The metal frame has a receiving portion, the light guide plate is disposed in the receiving portion and includes a light emitting surface, and the optical film group is disposed in the receiving portion and disposed on the light emitting surface of the light guiding plate; The control display panel includes a first substrate, a second substrate, a sensing electrode layer, a display medium layer and an electrostatic venting layer. The second substrate is disposed opposite to the first substrate, and the sensing electrode layer and the display medium layer The electrostatic venting layer is disposed on the second substrate, and the electrostatic venting layer has a sheet resistance of 10 ⁹ to 10 ¹² Ω/□. The touch display device of claim 10, wherein the metal frame is electrically connected to the electrostatic venting layer. The touch display device of claim 10, wherein the electrostatic venting layer comprises a conductive polymer, a transparent conductive oxide, a metal, a carbon nanotube, a graphene, or a combination thereof. A touch display device includes: a metal casing having an accommodating space; a backlight module disposed in the accommodating space; and a touch display panel disposed in the accommodating space and located The touch display panel includes a first substrate, a second substrate, a sensing electrode layer, a display medium layer and an electrostatic venting layer, and the second substrate is opposite to the first substrate The sensing electrode layer and the display medium layer are disposed between the first substrate and the second substrate, the electrostatic venting layer is disposed on the second substrate, and the sheet resistance of the electrostatic venting layer is 10 ⁹ to 10 ¹² Ω/□. The touch display device of claim 13, wherein the metal casing is electrically connected to the electrostatic venting layer. The touch display device of claim 13 , wherein the backlight module comprises a frame body, a light guide plate and an optical film set, the frame body has a receiving portion, and the light guide plate is disposed on the light guide plate The accommodating portion includes a light emitting surface, and the optical film group is disposed in the accommodating portion and disposed on the light emitting surface of the light guide plate. The touch display device of claim 13, wherein the electrostatic venting layer comprises a conductive polymer, a transparent conductive oxide, a metal, a carbon nanotube, a graphene, or a combination thereof.