TWI397738B - Display module and display device using the same thereof - Google Patents

Description

Display module and display device applying the same

The present invention relates to a display module, and more particularly to a display module capable of preventing static electricity interference and a display device using the same.

In the electronic products sold in the market, in order to make the communication of human-machine interface more convenient and clear, the proportion of products applied to display technology is very high. The desktop, notebook, flat-panel TV, personal game, communication mobile phone, personal digital assistant, digital camera, etc., can be seen in the mature application of display technology.

Under the existing electronic product architecture, the design of the matching display module must take into account many human factors, so that the performance of the electronic product itself and its display quality are superior. However, most of the display modules often generate static interference during operation, which affects the display effect of the screen. This is a problem that various manufacturers need to solve.

The invention relates to a display module and a display device using the same, which can solve the problem of static electricity in the display module to prevent static interference.

The invention provides a display module, which comprises a display panel, a driving integrated circuit, a signal transmission wire, a front frame and a conductive buffer sheet. The driving integrated circuit and the signal transmission wire are respectively connected to the display panel. The front frame includes a plastic component and a metal component connected to each other, wherein the plastic component covers the edge of the display panel and the driving integrated circuit, and the metal component covers the edge of the signal transmission wire and the display panel corresponding to the signal transmission wire, the metal component And connected to a ground. The conductive buffer sheet is disposed between the driving integrated circuit and the plastic member and is connected to the metal member.

The invention also provides a display device comprising a light source module and a display module, wherein the display module receives the light of the light source module. The display module includes a display panel, a driving integrated circuit, a signal transmission wire, a front frame and a conductive buffer sheet. The driving integrated circuit and the signal transmission wire are respectively connected to the display panel. The front frame includes a plastic component and a metal component connected to each other, wherein the plastic component covers the edge of the display panel and the driving integrated circuit, and the metal component covers the edge of the signal transmission wire and the display panel corresponding to the signal transmission wire, the metal component And connected to a ground. The conductive buffer sheet is disposed between the driving integrated circuit and the plastic member and is connected to the metal member.

In order to make the above-mentioned contents of the present invention more comprehensible, the preferred embodiments are described below, and the detailed description is as follows:

Please refer to FIG. 1 , which is an exploded view of an anti-static interference display module in accordance with a preferred embodiment of the present invention. As shown in FIG. 1 , the display module 1 includes a display panel 10 , a driving integrated circuit 12 , a signal transmission wire 14 , a front frame 16 and a conductive buffer sheet 18 . The driving integrated circuit 12 is located at the edge of the display panel 10 and is connected to each pixel of the display panel 10 for driving the pixel display on the display panel 10. The driving integrated circuit 12 is fabricated and set, for example, by chip-on-film (COF), chip-on-glass (COG), tape carrier package (TCP), and the like. At the edge of the display panel 10. The signal transmission wire 14 is also connected to the display panel 10 for connecting the display panel 10 to the control end of the system. The signal transmission line 14 is, for example, a flexible printed circuit board (FCB) connected to a circuit board of the system control terminal.

Before the present embodiment, the frame 16 is divided into four segments, but the frame structure before the present invention is not limited thereto. The front frame 16 includes the joined plastic members 161 to 163 and the metal member 164. The shape of these members is not limited, and may be a combination of a U-shaped member, an L-shaped member, and an in-line member to be combined into the structure of the front frame 16. In this embodiment, the plastic members 161 and 162 on the left and right sides are U-shaped members, and the plastic members 163 and 164 on the upper and lower sides are in-line members, and the openings of the U-shaped members are opposite, and the one-shaped members are arranged. Between the ㄇ-shaped members.

The traditional front frame structure is formed by stamping, and the utilization rate of the plate is low, which causes waste of the wool, and the material cost cannot be saved, and the space occupied during transportation is large, so that the transportation cost is high. However, in this embodiment, the front frame 16 is divided into four segments, which has the advantages that the plastic members 161 to 163 and the metal member 164 which are similar to the elongated structure are convenient to manufacture, and the material utilization rate is high, and the material cost can be saved, and the same transportation is carried out. The number of front frames 16 can also be accommodated in the space, which further reduces transportation costs.

Preferably, the cross-sectional shape of the plastic members 161 to 163 and the cross-sectional shape of the metal member 164 are L-shaped, so that the front frame 16 can completely cover the display panel 10 and its connected components. As shown in the figure, the plastic member 161 is used to cover the edge of the display panel 10 and the driving integrated circuit 12, and the metal member 164 is used to cover the edge of the signal transmission wire 14 corresponding to the signal transmission wire 14 and the display panel 10. The metal member 164 is connected to a grounding end (not shown) of the system, and the grounding end can be a housing (not shown) provided in the display module 1 or other components in the housing. The purpose of retaining a portion of the metal member 164 in the structure of the front frame 16 is to increase the grounding to prevent electrostatic discharge.

The conductive buffer sheet 18 is disposed on the entire surface between the driving integrated circuit 12 and the plastic member 161 to completely cover the driving integrated circuit 12, and isolates the driving integrated circuit 12 from the plastic member 161. The conductive buffer sheet 18 extends along the edge of the display panel 1 and is connected to the metal member 164. The conductive buffer sheet 18 is adhered to the inner surface of the plastic member 161 through a conductive adhesive (not shown). The conductive buffer sheet 18 can provide a buffering effect between the display panel 10 and the front frame 16. For example, the conductive buffer sheet 18 can be made of conductive foam, and the material is easy to obtain. In addition, the conductive buffer sheet 18 overlying the driving integrated circuit 12 can further provide a barrier for driving the integrated circuit 12. For example, when the external environment such as the user's finger touches the display module 1, or other live items approach the display module 1, it is very easy to generate static electricity on the display module 1. If the static electricity is not properly cleared, the static electricity will It is conducted to the driving integrated circuit 12 and the circuit is burned due to excessive accumulation of electrostatic charges. Since the driving integrated circuit 12 of the embodiment is covered with the conductive buffer sheet 18, the conductive buffer sheet 18 can directly guide static electricity along the edge of the display panel 10 until the upper metal member 164 is connected to the metal member 164 via the metal member 164. The grounding end (such as the above-mentioned housing) has the effect of dredging static electricity, so the conductive buffer sheet 18 can prevent static electricity from entering the driving integrated circuit 12 to protect the driving integrated circuit 12 from burning the driving integrated circuit 12.

The display module 10 disclosed in the embodiment has the function of anti-static interference, and can be directly applied to the display device and operated with a light source module. The display module 10 receives the light of the light source module for display. .

The design of the conductive buffer sheet 18 and the front frame 16 of the present embodiment will be further described. Please refer to Fig. 2, which is a schematic view of the back side of the front frame of Fig. 1. As shown in Fig. 2, the conductive buffer sheet 18 is disposed along the inner surface of the plastic member 161 up to one of the cross-sectional sides 161a of the plastic member 161, and the cross-sectional side 161a corresponds to the position of the metal member 164. In the lap joint manner of FIG. 2, the conductive buffer sheet 18 extends to a part of the surface of the metal member 164, and directly overlaps and contacts with the metal member 164 to form a via hole, thereby achieving the effect of dredging static electricity.

Please refer to FIG. 3A and FIG. 3B. FIG. 3A is a schematic view showing a combination of a conductive buffer sheet and a plastic member, and FIG. 3B is a partial enlarged view of the conductive buffer sheet and the plastic member of FIG. As shown, the conductive buffer sheet 18 is further folded back by 180 degrees to directly cover one end of the plastic member 161. When the metal member 164 (see FIG. 1) is assembled with the plastic member 161, the conductive buffer sheet 18 is sandwiched between the metal member 164 and the plastic member 161, so that the conductive buffer sheet 18 directly contacts the metal member 161.

Please refer to FIG. 4, which is another schematic diagram of the conductive buffer sheet combined with the plastic member. As shown, the front frame further includes a metal sleeve 161b that is sleeved with the conductive buffer sheet and sleeved in the metal member 164 to bring the conductive buffer sheet into contact with the metal member 164.

Please refer to FIG. 5A and FIG. 5B. FIG. 5A is a further schematic view showing the combination of the conductive buffer sheet and the plastic member. FIG. 5B is a partial enlarged view of the conductive buffer sheet and the plastic member of FIG. As shown, the front frame 16 further includes a metal screw 166. The conductive buffer sheet 18 extends outside the plastic member 161 and overlaps with the metal member 164, and the metal screw 166 simultaneously penetrates and locks the conductive buffer sheet 18 and the metal member 164 to bring the conductive buffer sheet 18 into contact with the metal member 164 and generate Electrical connection.

The front frame of the general display module is made of metal. At present, there are two existing production methods, one is to directly punch out the rough outer shape of the front frame; or two L-shaped frame structures, and then laser welded into the front frame. The former, as mentioned above, will result in waste of materials, while the latter will result in higher processing costs due to laser welding. In addition, the use of the metal front frame, in addition to the high processing cost, the material price is also higher than the plastic, can not effectively reduce the cost.

However, the display module capable of anti-static interference disclosed in the above embodiments of the present invention uses a front frame which is mostly made of a plastic material and retains a part of the metal member. The lower the price of plastic materials, the lighter weight. In addition, the use of plastic parts can reduce the cost of the front frame material or the processing cost of the laser welding process, which will greatly reduce the material cost. The structure of the front frame still retains part of the structure as a metal material, which can increase the grounding area as a problem to prevent the electrostatic discharge from burning the drive integrated circuit. And a conductive buffer sheet for dissipating static electricity is disposed on the inner edge of the plastic front frame covering the driving integrated circuit, and the conductive buffer sheet is disposed along the front inner edge to completely cover the driving integrated circuit, and extends to the metal front frame to be turned on, indirectly Connected to the ground, it protects the drive integrated circuit to avoid burning the drive integrated circuit and solves the problem of static interference.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

1‧‧‧ display module

10‧‧‧ display panel

12‧‧‧Drive integrated circuit

14‧‧‧Signal transmission wire

16‧‧‧ front box

18‧‧‧Electrical buffer

161, 162, 163‧‧‧ plastic components

161a‧‧‧section side

161b‧‧‧Metal Kit

164‧‧‧Metal components

166‧‧‧Metal screws

1 is an exploded view of an anti-static interference display module in accordance with a preferred embodiment of the present invention.

Fig. 2 is a schematic view showing the back side of the front frame of Fig. 1.

Figure 3A is a schematic view showing the combination of a conductive buffer sheet and a plastic member.

Fig. 3B is an enlarged view of a portion of the conductive buffer sheet and the plastic member of Fig. 3A.

Figure 4 is another schematic view of the conductive buffer sheet in combination with the plastic member.

Fig. 5A is a further schematic view showing the combination of the conductive buffer sheet and the plastic member.

Fig. 5B is an enlarged view of a portion of the conductive buffer sheet and the plastic member of Fig. 5A.

1. . . Display module

10. . . Display panel

12. . . Driving integrated circuit

14. . . Signal transmission wire

16. . . Front frame

18. . . Conductive buffer

161, 162, 163. . . Plastic component

164. . . Metal component

Claims (20)

A display module includes: a display panel; a driving integrated circuit connected to the display panel; a signal transmission wire connecting the display panel; and a front frame including a plastic component and a metal component connected thereto, wherein The plastic member covers an edge of the display panel and the driving integrated circuit, the metal member covers an edge of the signal transmission wire and the display panel corresponding to the signal transmission wire, the metal member is connected to a ground end; and a conductive buffer And a sheet disposed between the driving integrated circuit and the plastic member to cover the driving integrated circuit, wherein the conductive buffer sheet extends along the edge of the display panel to the metal member and connects the metal member. The display module of claim 1, wherein the conductive buffer sheet is disposed along an inner surface of the plastic member up to a cross section of the plastic member, the cross section corresponding to the metal member. The display module of claim 2, wherein the conductive buffer sheet is folded back to cover the cross section of the plastic member and contact the metal member. The display module of claim 2, wherein the front frame further comprises a metal sleeve that surrounds the conductive buffer sheet and is in contact with the metal member. The display module of claim 2, wherein the front frame further comprises a metal screw, the metal screw locking the plastic member, the conductive buffer sheet and the metal member. The display module of claim 1, wherein the plastic member is a U-shaped member, an L-shaped member or a flat member. The display module according to claim 1, wherein the metal member is a U-shaped member, an L-shaped member or a flat-shaped member. The display module of claim 1, wherein the conductive buffer sheet is made of conductive foam. The display module of claim 1, further comprising a conductive adhesive to adhere the conductive buffer sheet to the plastic member. The display module according to claim 1, wherein the cross-sectional shape of the plastic member and the cross-sectional shape of the metal member are L-shaped. A display device includes: a light source module; and a display module for receiving light of the light source module, the display module comprising: a display panel; a driving integrated circuit connecting the display panel; and a signal transmission wire Connecting the display panel; a front frame comprising one of a plastic member and a metal member, wherein the plastic member covers an edge of the display panel and the driving integrated circuit, the metal member covers the signal transmission wire and the The display panel corresponds to an edge of the signal transmission wire, the metal member is connected to a ground end; and a conductive buffer sheet is disposed between the driving integrated circuit and the plastic member to cover the driving integrated circuit, wherein the a conductive buffer sheet extending along the edge of the display panel to the metal member and connecting the metal member. The display device of claim 11, wherein the conductive buffer sheet is disposed along an inner surface of the plastic member up to a cross section of the plastic member, the cross section corresponding to the metal member. The display device of claim 12, wherein the conductive buffer sheet is folded back to cover the cross section of the plastic member and contact the metal member. The display device of claim 12, wherein the front frame further comprises a metal sleeve that surrounds the conductive buffer sheet and is in contact with the metal member. The display device of claim 12, wherein the front frame further comprises a metal screw, the metal screw locking the plastic member, the conductive buffer sheet and the metal member. The display device according to claim 11, wherein the plastic member is a U-shaped member, an L-shaped member or a flat-shaped member. The display device according to claim 11, wherein the metal member is a U-shaped member, an L-shaped member or a flat-shaped member. The display device of claim 11, wherein the conductive buffer sheet is made of conductive foam. The display device of claim 11, wherein the display module further comprises a conductive adhesive to adhere the conductive buffer sheet to the plastic member. The display device according to claim 11, wherein the cross-sectional shape of the plastic member and the cross-sectional shape of the metal member are L-shaped.