CN106558600A - Display device - Google Patents

Abstract

The present invention discloses a display device, which includes a display panel. The display panel includes a first substrate and a second substrate opposite to each other. The second substrate has a first surface, and the first surface includes a connected first plane and a first inclined surface. A patterned conductive layer is arranged on one plane, and the patterned conductive layer extends from the first plane to the first inclined surface, thereby forming a plurality of welding pads on the first inclined surface. In the present invention, the first surface of the second substrate includes a connected first plane and a first inclined surface, and the patterned conductive layer on the first plane extends to the first inclined surface to form a plurality of welding pads. Since the pads are arranged on the inclined surface, the occupied front area of the substrate is small, which meets the requirement of a narrow frame. Moreover, since the pad and the patterned conductive layer are fabricated simultaneously, the size and density requirements of the pad itself can be met. Compared with the prior art, the welding pad of the present invention is convenient to manufacture, stable in performance and good in lamination effect.

Description

display device

technical field

The present invention relates to a display device, in particular to a display device which is advantageous for a narrow frame.

Background technique

Liquid Crystal Display (LCD, Liquid Crystal Display) has many advantages such as thin body, power saving, and no radiation, and has been widely used. High resolution, high brightness, wide viewing angle, low power consumption and other performances, and the corresponding technologies are also continuously being developed.

Please refer to FIG. 1 , which is a partial cross-sectional view of a display device in the prior art. The display device 1000' includes a first substrate 100' and a second substrate 200' disposed opposite to each other. A plurality of welding pads 300' are disposed on the upper surface of the second substrate 200', and the flexible circuit board 400' is pressed onto the plurality of welding pads 300'. Since the front side of the flexible circuit board 400' is press-bonded on the second substrate 200', such a structure needs to occupy the surface space of the substrate, which cannot meet the requirements of a display device with a narrow frame.

Please refer to FIG. 2 , which is a partial cross-sectional view of another display device in the prior art. The display device 1000" includes a first substrate 100" and a second substrate 200" oppositely arranged, and the edges of the first substrate 100" and the edges of the second substrate 200" can be aligned. The first substrate 100" and the second substrate 200" A plurality of welding pads 300 ″ are arranged on the sides that are tangent to each other, and the flexible circuit board 400 ″ is pressed on the above-mentioned welding pads 300 ″. Since the pads 300" need to be arranged on the side of the substrate, during the manufacturing process, the sides of the first substrate 100" and the second substrate 200" need to be roughly ground or finely ground, and then sprayed or transferred to Alternatively, a metal layer may be formed by pasting, and then the metal layer may be etched to obtain the required plurality of pads 300 ″. Such a method is difficult to manufacture, and the bonding pads 300" cannot be densely distributed, which affects the lamination effect with the flexible circuit board 400". And because a plurality of pads 300" are arranged on the sides of the first substrate 100" and the second substrate 200", it is necessary to extend the lines on the surface of the substrate (such as the upper surface of the first substrate 100") to the side of the substrate, so that Firstly, there is a problem of circuit breakage easily occurring at the bend between the substrate surface and the side of the substrate.

Therefore, how to design a display device that caters to the narrow bezel trend, is easy to manufacture, and has a good subsequent lamination effect has become one of the research directions in the industry.

Contents of the invention

The purpose of the present invention is to provide a display device, which can meet the requirement of a narrow frame, and can conveniently make pads, and has a good subsequent lamination effect.

In order to achieve this purpose, the present invention proposes a display device, the display device includes a display panel, the display panel includes an opposite first substrate and a second substrate, the second substrate has a first surface, and the first surface includes connected A first plane and a first inclined surface, the first plane is provided with a patterned conductive layer, the patterned conductive layer extends from the first plane to the first inclined surface, thereby forming a plurality of pad.

As an optional technical solution, the display device further includes a flexible circuit board, and the flexible circuit board is electrically connected to the plurality of welding pads.

As an optional technical solution, the second substrate also has a second surface, the second surface is opposite to the first surface, the display device further includes a printed circuit board, and the flexible circuit board faces from the first inclined surface to the The second surface is curved and connected to the printed circuit board.

As an optional technical solution, the patterned conductive layer includes a first metal oxide layer, and the plurality of pads include the first metal oxide layer.

As an optional technical solution, the patterned conductive layer includes a first metal oxide layer and a first metal layer, and the plurality of pads include at least one of the first metal oxide layer and the first metal layer.

As an optional technical solution, the patterned conductive layer includes a first metal oxide layer, a first metal layer, and a second metal layer, and the multiple pads include the first metal layer, the second metal layer, and the first metal layer. at least one of the metal oxide layers.

As an optional technical solution, the included angle between the first plane and the first inclined surface is an obtuse angle.

As an optional technical solution, the display panel includes a display area and a peripheral area, the peripheral area surrounds the display area, and the first inclined surface is located in the peripheral area.

As an optional technical solution, the display device further includes a backlight module on which the display panel is assembled.

As an optional technical solution, the display device is an OLED display device.

In the display device of the present invention, since the first surface of the second substrate includes a connected first plane and a first slope, the patterned conductive layer on the first plane extends to the first slope to form a plurality of pads. Since the bonding pads are arranged on the inclined surface, the occupied front area of the substrate is small, which meets the requirement of a narrow frame. Moreover, since the pads and the patterned conductive layer are fabricated simultaneously, the size and density requirements of the pads themselves can be met. Compared with the prior art, the welding pad of the present invention is convenient to manufacture, stable in performance and good in lamination effect.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

FIG. 1 is a partial cross-sectional view of a display device in the prior art;

FIG. 2 is a partial cross-sectional view of another display device in the prior art;

3 is a partial cross-sectional view of a display device of the present invention;

FIG. 4 is a partial perspective view of a second substrate in FIG. 3;

5 is a partial cross-sectional view of another embodiment of the display device of the present invention;

FIG. 6 is a partial cross-sectional view of another embodiment of the display device of the present invention.

detailed description

The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "side", etc., are only referring to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

In the following embodiments, the same parts are denoted by the same symbols in different drawings.

Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a partial cross-sectional view of the display device of the present invention; FIG. 4 is a partial perspective view of the second substrate in FIG. 3 . The display device 1000 of the present invention includes a display panel. The display panel includes a first substrate 100 and a second substrate 200 disposed opposite to each other. The second substrate 200 has a first surface 201 and a second surface 202 opposite to each other. In this embodiment, the first surface 201 is the surface of the second substrate 200 facing the first substrate 100 , that is, the upper surface of the second substrate 200 ; the second surface 202 is the lower surface of the second substrate 200 . As shown in FIG. 3 , the first surface 201 includes a connected first plane 2001 and a first inclined surface 2002 . A patterned conductive layer 203 is disposed on the first plane 2002 , and the patterned conductive layer 203 extends from the first plane 2001 to the first inclined surface 2002 , thereby forming a plurality of pads 204 on the first inclined surface 2002 .

As shown in FIG. 3 , in this embodiment, the display device 1000 further includes a flexible circuit board 300 , and the flexible circuit board 300 is electrically connected to the above-mentioned plurality of pads 204 . In actual operation, the flexible circuit board 300 can be a flexible printed circuit or a chip on film, and the user can choose according to actual needs, and is not limited thereto.

As shown in FIG. 3 , in this embodiment, the display device 1000 further includes a printed circuit board 400 , and the flexible circuit board 300 is bent from the first inclined surface 2002 toward the second surface 202 and connected to the printed circuit board 400 . In this embodiment, the display device 1000 is an OLED display device, and the printed circuit board 400 is located on the second surface 202 of the second substrate 200 when the flexible circuit board 300 is bent. In actual operation, the display panel can also be a general LCD display panel, and the display device 1000 can also include a backlight module (not shown), and the display panel is assembled on the backlight module. When the flexible circuit board 300 is bent, the printed The circuit board 400 is located on the back of the backlight module.

As shown in FIG. 3 , the included angle between the first plane 2001 and the first inclined surface 2002 is an obtuse angle. Such a design makes the transition from the first flat surface 2001 to the first inclined surface 2002 relatively gentle. When the patterned conductive layer 203 on the first plane 2001 extends to the first slope 2002 , no fracture will occur. As shown in FIG. 3 , the display panel includes a display area A and a peripheral area B, the peripheral area B surrounds the display area A, and the first inclined surface 2002 is located in the peripheral area B. In practice, the first inclined surface 2002 may be an edged area on the first substrate 200 .

In the present invention, since the first surface 201 of the second substrate 200 includes a connected first plane 2001 and a first inclined surface 2002, that is, the first plane 2001 and the first inclined surface 2002 are located on the same side of the second substrate 200, Therefore, when making the patterned conductive layer 203 on the first plane 2001, multiple pads 204 can be produced on the first inclined surface 2002 at the same time; and because the same process is used, the multiple pads 204 themselves are thinner. Lines, and the density can meet the required requirements to ensure the subsequent pressing effect. In addition, the plurality of pads 204 are extended from the patterned conductive layer 203. Since the position where the first plane 2001 is connected to the first inclined surface 2002 is relatively gentle, when the line extends from the first plane 2001 to the first inclined surface 2002 There will be no problem of breakage, ensuring stable performance of the display device 1000 .

As shown in FIG. 3 , in this embodiment, the patterned conductive layer 203 includes a first metal oxide layer 2031. Since the plurality of pads 204 extend from the patterned conductive layer 203 from the first plane 2001 to the first inclined surface 2002 Formed, the plurality of bonding pads 204 also includes the first metal oxide layer 2031 . Please refer to FIG. 5 , which is a partial cross-sectional view of another embodiment of the display device of the present invention. The difference from FIG. 3 is that in this embodiment, the patterned conductive layer 203' may include the first metal oxide layer 2031 and the first metal layer 2032, and the plurality of pads 204 include the first metal layer 2032. In actual operation, The pads 204 may include at least one of the first metal oxide layer 2031 and the second metal layer 2032 . Alternatively, please refer to FIG. 5 . FIG. 6 is a partial cross-sectional view of another embodiment of the display device of the present invention. The difference from FIG. 3 is that in this embodiment, the patterned conductive layer 203" includes a first metal oxide layer 2031, a first metal layer 2032, and a second metal layer 2033, and a plurality of pads 204 include a second metal layer 2033 In practice, the plurality of pads 204 may include at least one of the first metal oxide layer 2031 , the first metal layer 2032 and the second metal layer 2033 .

In practice, the first metal oxide layer 2031 can be made of indium tin oxide (ITO). The material of the first metal layer 2032 and the second metal layer 2033 is, for example, aluminum Al. The user can choose the production material according to the actual needs, and it is not limited thereto.

In the display device of the present invention, since the first surface of the second substrate includes a connected first plane and a first slope, the patterned conductive layer on the first plane extends to the first slope to form a plurality of pads. Since the bonding pads are arranged on the inclined surface, the occupied front area of the substrate is small, which meets the requirement of a narrow frame. Moreover, since the pads and the patterned conductive layer are fabricated simultaneously, the size and density requirements of the pads themselves can be met. Compared with the prior art, the welding pad of the present invention is convenient to manufacture, stable in performance and good in lamination effect.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the protection scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the protection scope of the appended claims of the present invention. Therefore, the protection scope of the claims applied for in the present invention should be interpreted in the broadest way based on the above description, so as to cover all possible changes and equivalent arrangements.

Claims (10)

1. a kind of display device, including display floater, the display floater include relative first substrate and second substrate, its feature It is：

The second substrate has first surface, and the first surface includes the first plane and the first inclined plane being connected, and this first Patterned conductive layer is provided with plane, the patterned conductive layer extends to first inclined plane from first plane, so as to Multiple pads are formed in first inclined plane.

2. display device according to claim 1, it is characterised in that：The display device also includes flexible circuit board, and this is soft Property circuit board be electrically connected with the plurality of pad.

3. display device according to claim 2, it is characterised in that：The second substrate also has second surface, and this second Surface is relative with the first surface, and the display device also includes printed circuit board (PCB), and the flexible circuit board is from the first inclined plane court The printed circuit board (PCB) is bent and is connected to the second surface.

4. display device according to claim 1, it is characterised in that：The patterned conductive layer includes the first metal-oxide Layer, the plurality of pad include first metal oxide layer.

5. display device according to claim 1, it is characterised in that：The patterned conductive layer includes the first metal-oxide Layer and the first metal layer, the plurality of pad include at least one of first metal oxide layer and the first metal layer.

6. display device according to claim 1, it is characterised in that：The patterned conductive layer includes the first metal-oxide Layer, the first metal layer and second metal layer, the plurality of pad include the first metal layer, second metal layer and first metal oxygen At least one of compound layer.

7. display device according to claim 1, it is characterised in that：Angle between first plane and first inclined plane For obtuse angle.

8. display device according to claim 1, it is characterised in that：The display floater includes viewing area and external zones Domain, the outer peripheral areas surround the viewing area, and first inclined plane is located at the outer peripheral areas.

9. display device according to claim 1, it is characterised in that：The display device also includes backlight module, the display Panel sectional is on the backlight module.

10. display device according to claim 1, it is characterised in that：The display device is OLED display.