Display screen structure adopting novel conducting layer

Abstract

The utility model discloses a display screen structure adopting a novel conducting layer, which comprises a display screen body, a cover plate is arranged on the upper surface of the display screen body, the cover plate is fixedly attached to the display screen body, conducting OCA glue used for attaching and conducting is arranged between the cover plate and the display screen body, and the conducting OCA glue is arranged between the cover plate and the display screen body. And the conductive OCA glue is connected with the display screen body in a grounding manner. The display screen has the advantages that the conductive OCA glue is arranged to achieve attaching, fixing and grounding connection of the cover plate and the display screen body, and therefore operation steps are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a display screen structure adopting a new conductive layer. Background Art

[0002] Liquid crystal display devices are widely used in various information, communication and consumer electronic products. Liquid crystal display modules are mainly composed of liquid crystal display screens and backlight modules. The surface of the liquid crystal display screen is usually provided with a cover plate for protection. With the development of liquid crystal display technology, IPS, a wide-viewing angle lateral electric field liquid crystal display technology, has optimized the arrangement of liquid crystal molecules for ordinary TN-type TFT screens, and adopted a horizontal arrangement method, so that it has the advantages of large viewing angle, accurate color reproduction, and no water marks on touch, becoming the mainstream technology for mid-to-high-end display modules. The display screen using IPS has an uneven distribution of internal pixel electrodes and common electrodes in the horizontal direction, and the electric field is unevenly distributed in the plane, which is easily disturbed by external noise. Therefore, a conductive ITO film needs to be coated on the upper glass as a shielding layer to prevent noise and ESD interference, and this upper glass needs to be connected to the lower glass through conductive silver paste to achieve a common ground effect.

[0003] In the prior art, the process of coating a conductive ITO film is relatively complicated, and requires the use of an additional magnetron sputtering method to form a thin film. It is also necessary to connect the upper and lower layers of glass by spot coating of silver paste, which easily leads to uneven spot coating and poor contact. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a display screen structure using a new conductive layer.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A display screen structure using a new conductive layer includes: a display screen body, a cover plate is arranged on the upper surface of the display screen body, the cover plate is bonded and fixed to the display screen body, a conductive OCA glue for bonding and conduction is arranged between the cover plate and the display screen body, and the conductive OCA glue is grounded to the display screen body.

[0007] In one embodiment, the conductive OCA glue includes an OCA solid glue and a conductive glue which are sequentially arranged, the conductive glue is coated on the lower surface of the OCA solid glue, and the conductive glue is in contact with the upper surface of the display screen body.

[0008] In one embodiment, the conductive adhesive is transparent.

[0009] In one embodiment, the thickness of the conductive adhesive is 8um-25um, and the resistivity of the conductive adhesive is 10^-4Ω·cm-10^-3Ω·cm.

[0010] In one embodiment, the display screen body includes an upper polarizer, an upper layer of glass, a lower layer of glass, and a lower polarizer arranged in sequence, and the size of the lower layer of glass is larger than that of the upper layer of glass.

[0011] In one embodiment, a grounding ITO layer for grounding is provided on the lower glass layer, and there are two grounding ITO layers, which are respectively located at the edges of the lower glass layer near the left and right sides.

[0012] In one embodiment, the conductive OCA glue extends to the upper surface of the lower glass layer, and the conductive OCA glue is grounded to two locations of the grounded ITO layer respectively.

[0013] In one embodiment, a driver IC is bound to a side of the lower glass facing the upper glass, the driver IC is located in a range of the lower glass beyond the upper glass, and the conductive OCA glue extending to the lower glass is kept away from the driver IC.

[0014] In one embodiment, the conductive OCA glue extending to the lower layer of glass forms two protruding positions, the two protruding positions respectively correspond to the positions of the two grounded ITO layers, and the two protruding positions are respectively grounded to the two grounded ITO layers.

[0015] In one embodiment, conductive gold balls are implanted into the two protruding portions to enhance conductivity.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model discloses a display screen structure using a new conductive layer, wherein the OCA solid glue is combined with the conductive glue to form a conductive OCA glue, the cover plate is fully bonded to the display screen body through the conductive OCA glue, and the conductive OCA glue is extended to the grounding ITO layer of the lower glass to be grounded and connected to the lower glass, thereby eliminating the steps of plating an ITO film on the upper glass and grounding the ITO film and the lower glass by spot coating silver paste, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1A schematic cross-sectional view of a display screen structure using a new conductive layer provided by the utility model;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 The present invention provides a schematic diagram of the front structure of a conductive OCA adhesive in a display screen structure using a new conductive layer.

[0022] Description of the drawings: 10. Display screen body; 11. Upper polarizer; 12. Upper glass; 13. Lower glass; 131. Grounded ITO layer; 14. Lower polarizer; 20. Cover plate; 30. Conductive OCA glue; 31. OCA solid glue; 32. Conductive glue; 40. Driver IC; 50. Protrusion; 60. Conductive gold ball. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A display structure using a new conductive layer, referring to Figure 1 , including a display screen body 10 , a cover plate 20 is disposed on the upper surface of the display screen body 10 , and the cover plate 20 is adhered and fixed to the display screen body 10 .

[0025] Reference Figure 1 The display screen body 10 includes an upper polarizer 11, an upper glass 12, a lower glass 13 and a lower polarizer 14 arranged in sequence, and a liquid crystal for display is arranged between the upper glass 12 and the lower glass 13. The size of the lower glass 13 is larger than that of the upper glass 12.

[0026] Reference Figure 1 A conductive OCA glue 30 for bonding and conducting electricity is provided between the cover plate 20 and the display screen body 10. The conductive OCA glue 30 includes an OCA solid glue 31 and a conductive glue 32 which are arranged in sequence. The OCA solid glue 31 is used for connecting and fixing the cover plate 20 and the display screen body 10. The conductive glue 32 is applied to the lower surface of the OCA solid glue 31, and the conductive glue 32 is in contact with the upper surface of the display screen body 10.

[0027] Further, refer to Figure 1 The conductive adhesive 32 is transparent and does not affect the normal display function of the display screen body 10. The thickness of the conductive adhesive 32 is 8um-25um, and the resistivity of the conductive adhesive 32 is 10^-4Ω·cm-10^-3Ω·cm. The conductive adhesive 32 is used to conduct electricity, and the conductive OCA adhesive 30 extends to the upper surface of the lower glass 13 to facilitate the grounding connection of the lower glass 13.

[0028] Reference Figure 1 and Figure 2 A grounding ITO layer 131 for grounding is provided on the lower glass 13. There are two grounding ITO layers 131, which are respectively located at the edges of the lower glass 13 near the left and right sides. The conductive OCA glue 30 extends to the upper surface of the lower glass 13 and is grounded to the two grounding ITO layers 131 respectively.

[0029] Reference Figure 3 A driver IC 40 is bound to the side of the lower glass 13 facing the upper glass 12. The driver IC 40 is located in the range where the lower glass 13 exceeds the upper glass 12, and the driver IC 40 is located between two grounded ITO layers 131. The conductive OCA glue 30 extending to the lower glass 13 is kept away from the binding position of the driver IC 40 to avoid the driver IC 40 being covered with the conductive OCA glue 30 and causing a circuit short circuit.

[0030] Reference Figure 3 The conductive OCA glue 30 extending to the lower glass 13 forms two protruding positions 50, and the two protruding positions 50 are respectively arranged corresponding to the positions of the two grounded ITO layers 131. The two protruding positions 50 respectively cover the two grounded ITO layers 131 and are respectively grounded to the two grounded ITO layers 131.

[0031] Further, refer to Figure 2 and Figure 3 The two protruding positions 50 are filled with conductive gold balls 60 for enhancing conductivity, and the conductive gold balls 60 are used to enhance the conductivity of the contact position between the conductive glue 32 and the grounded ITO layer 131. There are multiple conductive gold balls 60, and the multiple conductive gold balls 60 are filled in the protruding positions 50.

[0032] Reference Figure 1-3 By combining the OCA solid glue 31 and the conductive glue 32 to form a conductive OCA glue 30, the cover plate 20 is fully bonded to the display body 10 through the conductive OCA glue 30, and the conductive OCA glue 30 extends to the grounding ITO layer 131 of the lower glass 13 and is grounded to the lower glass 13, eliminating the steps of plating an ITO film on the upper glass 12 and grounding the ITO film and the lower glass 13 by spot-coating silver paste, thereby improving production efficiency.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A display screen structure using a new conductive layer, characterized in that: include: A display screen body (10), wherein a cover plate (20) is arranged on the upper surface of the display screen body (10), the cover plate (20) is bonded and fixed to the display screen body (10), a conductive OCA glue (30) for bonding and conducting electricity is arranged between the cover plate (20) and the display screen body (10), and the conductive OCA glue (30) is grounded and connected to the display screen body (10).

2. A display screen structure using a new conductive layer according to claim 1, characterized in that: The conductive OCA glue (30) comprises an OCA solid glue (31) and a conductive glue (32) which are arranged in sequence, the conductive glue (32) being coated on the lower surface of the OCA solid glue (31), and the conductive glue (32) being in contact with the upper surface of the display screen body (10).

3. A display screen structure using a new conductive layer according to claim 2, characterized in that: The conductive adhesive (32) is transparent.

4. The display screen structure using the new conductive layer according to claim 3, characterized in that: The thickness of the conductive adhesive (32) is 8 um-25 um, and the resistivity of the conductive adhesive (32) is 10^-4Ω·cm-10^-3Ω·cm.

5. The display screen structure using a new conductive layer according to claim 2, characterized in that: The display screen body (10) comprises an upper polarizer (11), an upper layer of glass (12), a lower layer of glass (13) and a lower polarizer (14) which are arranged in sequence, and the size of the lower layer of glass (13) is larger than that of the upper layer of glass (12).

6. A display screen structure using a new conductive layer according to claim 5, characterized in that: A grounding ITO layer (131) for grounding is provided on the lower glass (13), and the grounding ITO layer (131) is provided at two locations. The two grounding ITO layers (131) are respectively located at the edges of the lower glass (13) close to the left and right sides.

7. A display screen structure using a new conductive layer according to claim 6, characterized in that: The conductive OCA glue (30) extends to the upper surface of the lower glass (13), and the conductive OCA glue (30) is grounded to the two grounding ITO layers (131) respectively.

8. The display screen structure using a new conductive layer according to claim 7, characterized in that: A driver IC (40) is bound to a side of the lower layer of glass (13) facing the upper layer of glass (12); the driver IC (40) is located within a range of the lower layer of glass (13) beyond the upper layer of glass (12); and the conductive OCA glue (30) extending onto the lower layer of glass (13) is kept away from the driver IC (40).

9. A display screen structure using a new conductive layer according to claim 8, characterized in that: The conductive OCA glue (30) extending to the lower layer of glass (13) forms two protruding positions (50), the two protruding positions (50) are respectively arranged corresponding to the positions of the two grounded ITO layers (131), and the two protruding positions (50) are respectively grounded to the two grounded ITO layers (131).

10. A display screen structure using a new conductive layer according to claim 9, characterized in that: Conductive gold balls (60) are injected into the two protruding positions (50) to enhance conductivity.

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