TWM470961U - Electrostatic damage preventing apparatus of display module - Google Patents

Description

Display module electrostatic protection device

The present invention relates to an electrostatic protection device, and more particularly to an electrostatic protection device applied to a display module of a display panel.

As the market demand for large-size liquid crystal displays is increasing, liquid crystal display manufacturers continue to develop large-scale liquid crystal displays such as IPS (In-Plane-Switching Liquid Crystal) technology, wherein the liquid crystal display includes a liquid crystal display module, and A backlight module is used to provide a uniform light source. The liquid crystal display module includes a surface protection film attached to a polarizing plate for protecting the polarizing plate from scratches. In the assembly process of the liquid crystal display, before the backlight module and the liquid crystal display module are combined, the surface protection film attached to the polarizing plate needs to be torn off before the backlight module and the liquid crystal display module are Make a fit.

As shown in FIG. 1 , the liquid crystal display module includes a polarizing plate 11 , a surface protection film 12 , a plurality of circuit boards 13 , a plurality of flexible circuit boards 14 , and a liquid crystal display panel 15 . The flexible circuit boards 14 . It is electrically connected between the liquid crystal display panel 15 and the circuit board 13. When the liquid crystal display module is combined with a backlight module, the surface protection film 12 of the polarizing plate 11 needs to be removed. As shown in FIG. 1, the surface protection film 12 will be polarized during the tearing process. The board 11 is separated to cause electric charge to accumulate on the polarizing plate 11 to generate static electricity, and the liquid crystal is easily damaged due to the short circuit. A transparent circuit layer is formed on the inner and outer surfaces of the display panel 15. Therefore, in order to prevent the transparent circuit layer of the liquid crystal display module from being damaged by static electricity, an ion fan 16 is used to generate a large amount of positive and negative electric current to be blown to the polarized light. The plate 11 is for neutralizing static electricity on the polarizing plate 11.

However, since the impedance value between the liquid crystal display panel 15 and the outside is large, the ion fan 16 needs to be blown by the polarizing plate 11 for a period of time to reduce the electrostatic charge. For example, the electrostatic charge amount of 0.8 KV needs to be blown by the ion fan 16. 2 to 3 minutes, therefore, the ion fan 16 cannot completely neutralize the static electricity of the polarizing plate 11 in a short time, and the static electricity cannot be eliminated or released by other pipes, so that the transparent circuit of the liquid crystal display module is still easy. The layer caused damage.

Therefore, it is necessary to provide an improved electrostatic protection device for the display module to solve the problems of the conventional technology.

The main purpose of this creation is to provide an electrostatic protection device for a display module that uses metal conductors to eliminate residual static electricity.

The secondary objective of this creation is to provide an electrostatic protection device for another display module that utilizes metal conductors to increase the rate of electrostatic discharge.

For the purpose of the above, the present invention provides an electrostatic protection device for a display module, which is applied to a display module having a glass substrate and a polarizing plate. The electrostatic protection device comprises a conductor and a fixing device. And a metal conductor, one end of the conductor electrically contacts a surface circuit of the glass substrate, the fixture is used to fix the other end of the conductor, and has a metal portion electrically connected to the conductor and externally connected The metal conductor has one end electrically contacting the polarizing plate and the other end of the metal conductor being grounded outward.

In an embodiment of the present invention, the metal conductor has a base and a positioning a locating member is fixed on the pedestal, the urging member is pivotally connected to the locating member, the abutting member is pivotally connected to the positioning member and the hand pressing plate, and moves The hand pressing plate can interlock the displacement of the abutting member.

In an embodiment of the present invention, the positioning member has a first pivoting portion and a second pivoting portion, the first pivoting portion is pivotally connected to the hand pressing plate; the second pivoting portion is coupled to the first The pivoting portions are spaced apart and are pivotally connected to the abutment.

In one embodiment of the present invention, the metal conductor further has a metal foil wrapped around one end of the abutting member for abutting against the polarizing plate, the metal foil being grounded outward.

In an embodiment of the present invention, the abutment has a cylinder

In an embodiment of the present invention, the fastener further has a two-phase pivoting clamping member disposed at an end of one of the clamping members.

In one embodiment of the present invention, the metal portion is a metal foil and is wrapped around the end of one of the clamping members, the metal foil being grounded outward.

In an embodiment of the present invention, the electrostatic protection device of the display module further includes an electrostatic blower disposed above the display module for blowing the surface of the polarizing plate.

In an embodiment of the present invention, the electrostatic protection device of the display module further includes a resistor, and the metal portion is grounded outward through the resistor.

For the purpose of the above, the present invention provides an electrostatic protection device for another display module, which is applied to a display module having a glass substrate and a polarizing plate, the electrostatic protection device comprising a metal conductive device, One end of the metal conductor electrically contacts the polarizing plate, and The other end is grounded, wherein the metal conductor has a base, a positioning member, a hand pressing plate and a pressing member. The positioning member is fixed on the base, and the hand pressing plate is pivotally connected to the positioning member. The abutting member is pivotally connected to the positioning member and the hand pressing plate _, and the hand pressing plate is moved to interlock the displacement of the abutting member.

As described above, by designing the conductor and the metal conductor to be grounded, the static electricity generated on the polarizing plate can be effectively eliminated, and the speed of the electrostatic discharge can be increased, and the liquid crystal display can be prevented from being peeled off by the protective film. The damage caused by the surface circuit layer of the module.

2‧‧‧Display module

20‧‧‧Insulated frame

21‧‧‧ glass substrate

22‧‧‧Polar plate

23‧‧‧Protective film

3‧‧‧Electrostatic protection device

31‧‧‧Conductors

32‧‧‧ splicer

321‧‧‧Metal Department

322‧‧‧Clamping parts

33‧‧‧Metal Conductor

331‧‧‧Base

332‧‧‧ Positioning parts

333‧‧‧hand plate

334‧‧‧Relying parts

335‧‧‧metal foil

330‧‧‧Cylinder

301‧‧‧First pivotal

302‧‧‧Second pivotal

34‧‧‧resistance

35‧‧‧Electrostatic blower

Fig. 1 is a top view of the electrostatic protection device of the display module of the present invention; Figs. 2 and 3: a state of use of the electrostatic protection device of the display module of the present embodiment; and Fig. 4: the creation A schematic diagram of an electrostatic protection device of a display module of another embodiment.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below. Furthermore, the directional terms mentioned in this creation, such as upper, lower, top, bottom, front, rear, left, right, inner, outer, side, surrounding, central, horizontal, horizontal, vertical, vertical, axial, Radial, uppermost or lowermost, etc., only refer to the direction of the additional schema. Therefore, the directional terminology used is used to describe and understand the creation, and is not intended to limit the creation.

Referring to Figures 2 and 3, the electrostatic protection device 3 of the display module of the present embodiment is applied to a display module 2, such as In-Plane-Switching Liquid Crystal (IPS). The liquid crystal television or the tablet computer of the panel, wherein the display module 2 has two glass substrates 21, two polarizing plates 22 and a protective film 23, wherein the two polarizing plates 22 are disposed on the outer surface of the two glass substrates 21, and the The protective film 23 is placed on the outer surface of the polarizing plate 22 above, and the display module 2 can be pre-positioned in an insulating frame 20 for subsequent electrostatic discharge operation. In addition, the ESD protection device 3 includes a conductor 31, a fixture 32, a metal conductor 33, and a resistor 34. The detailed structure, assembly relationship and operation principle of the components of the electrostatic protection device 3 of the display module will be described in detail below.

Referring to FIGS. 2 and 3, one end of the conductor 31 (for example, copper or other metal) of the static electricity protection device 3 electrically contacts a surface circuit (not shown) of the glass substrate 21 of the display module 2, for example, A conductive terminal formed by a transparent conductive layer of Indium Tin Oxide (ITO), the conductor 31 is electrically connected to the ground of the surface circuit for deriving the electrostatic charge of the surface circuit.

Referring to FIG. 3, the fixing device 32 is configured to fix the other end of the conductor 31, and the fixing device 32 has a metal portion 321 and a two-phase pivoting clamping member 322, wherein the metal portion The 321 is disposed at the end of the at least one of the clamping members 322, and the metal portion 321 is electrically connected to the conductor 31 and grounded outward through the resistor 34. In this embodiment, the metal portion 321 is a metal foil, and The ends of the clamping members 322 are wrapped, and the metal foil is grounded outward by the resistors 34.

With reference to the second and third embodiments, one end of the metal conductor 33 is electrically connected to the polarizing plate 22, and the other end thereof is grounded outwardly. The metal conductor 33 has a base 331, a positioning member 332, a first pressing piece 301 and a second pivoting part 302 are disposed on the base 331. The positioning member 332 has a first pivoting portion 301 and a second pivoting portion 302. The first pivoting portion The portion 301 is pivotally connected to the hand pressing plate 333, and the second pivoting portion 302 is spaced apart from the first pivoting portion 301 and is provided for The abutting member 333 is pivotally connected to the positioning member 332. The abutting member 334 is pivotally connected to the positioning member 332 and the hand pressing plate 333, and the hand pressing plate 333 can be moved to interlock. The abutment 334 is displaced. In this embodiment, the abutting member 334 has a cylinder 330, and the metal conductor 33 further has a metal foil 335 covering one end of the column 330 of the abutting member 334. The polarizing plate 22 is grounded by the metal foil 335 outwardly against the polarizing plate 22 .

Referring to the second and third embodiments, according to the structure, when the display module 2 is to be removed from the surface of the polarizing plate 22 during the manufacturing process, the conductor 31 is used. Contacting the polarizing plate 22 and grounding outward by the resistor 34, while pressing the hand pressing plate 333, the abutting member 334 moves downward to make the metal foil piece 335 contact the polarizing plate 22, thereby making the polarizing plate 22 By the metal foil 335 being grounded outward, at this time, the static electricity generated by tearing off the protective film 23 releases the electrostatic charge through the conductor 31 to the ground or the path of the metal foil 335 to the ground. The static electricity generated by the polarizing plate 22 is eliminated.

As described above, by designing the conductor 31 and the metal conductor 33 to be grounded, the static electricity generated by the polarizing plate 22 can be effectively eliminated, and the speed of the electrostatic discharge can be increased, thereby avoiding the tearing off during the manufacturing process. The protective film 23 does not have enough static electricity to cause damage to the surface circuit layer of the liquid crystal display module 2 due to static electricity.

Referring to FIG. 4, another embodiment of the present invention, wherein the electrostatic protection device of the display module further includes an electrostatic blower 35, such as an ion fan, wherein the electrostatic blower 35 is disposed in the The upper surface of the display module 2 is used to blow the surface of the polarizing plate 22, so as to more completely remove the static electricity generated by the display module 2.

As described above, the conductor 31 and the metal conductor 33 can be used to effectively eliminate the static electricity generated by the polarizing plate 22, increase the speed of electrostatic discharge, and further set the electrostatic blower. 35 thoroughly removes static electricity generated by the display module 2.

Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application.

2‧‧‧Display module

20‧‧‧Insulated frame

21‧‧‧ glass substrate

22‧‧‧Polar plate

23‧‧‧Protective film

3‧‧‧Electrostatic protection device

31‧‧‧Conductors

32‧‧‧ splicer

321‧‧‧Metal Department

322‧‧‧Clamping parts

33‧‧‧Metal Conductor

331‧‧‧Base

332‧‧‧ Positioning parts

333‧‧‧hand plate

334‧‧‧Relying parts

335‧‧‧metal foil

330‧‧‧Cylinder

301‧‧‧First pivotal

302‧‧‧Second pivotal

34‧‧‧resistance

Claims (10)

An electrostatic protection device for a display module is applied to a display module. The display module has a glass substrate and a polarizing plate. The electrostatic protection device comprises: a conductor, one end of which electrically contacts a surface circuit of the glass substrate a fixing device for fixing the other end of the conductor, the fixing device has a metal portion electrically connected to the conductor and grounded outward; and a metal conductive member electrically contacting the polarizing plate at one end thereof , and the other end is grounded outward. The electrostatic protection device of the display module of claim 1, wherein the metal conductor has: a base; a positioning member fixed on the base; and a hand pressing plate pivotally connected to the positioning member And a supporting member pivotally connected to the positioning member and the hand pressing plate, and moving the hand pressing plate to interlock the displacement of the abutting member. The electrostatic protection device of the display module of claim 2, wherein the positioning member has: a first pivoting portion for pivoting the hand pressing plate; and a second pivoting portion, and the first The pivoting portions are spaced apart and are pivotally connected to the abutment. The electrostatic protection device of the display module of claim 2, wherein the metal conductor further has a metal foil covering one end of the abutting member for abutting against the polarizing plate, the metal The foil is grounded outward. The electrostatic protection device of the display module of claim 3, wherein the abutting member has a cylinder. The electrostatic protection device of the display module of claim 1, wherein the fixture further has a two-phase pivoting clamping member, the metal portion being disposed at an end of one of the clamping members. The electrostatic protection device of the display module of claim 6, wherein the metal portion is a metal foil and is wrapped at an end of one of the clamping members, and the metal foil is grounded outward. The electrostatic protection device of the display module of claim 1, further comprising an electrostatic blower disposed above the display module for blowing the surface of the polarizing plate. The electrostatic protection device of the display module of claim 1, further comprising a resistor, the metal portion being grounded externally via the resistor. An electrostatic protection device for a display module is applied to a display module, the display module has a glass substrate and a polarizing plate, and the electrostatic protection device comprises: a metal conductive device, one end of which electrically contacts the polarizing plate, and The other end is externally grounded, wherein the metal conductor has: a base; a positioning member fixed on the base; a hand pressing plate pivotally connected to the positioning member; and a resisting member pivotally connected to The positioning member and the hand pressing plate move the hand pressing plate to interlock the displacement of the abutting member.