Patent Application
20240130039
The present application relates to a display field and in particular, to a display device and an electronic apparatus.
With an increasing demand for full screens, curved four-sided display screens have developed rapidly. However, as shown in
The present application provides a display device and an electronic apparatus, which improves accuracy of a sucking head for sucking a printed circuit board during a bonding process.
The present application provides a display device, comprising:
a panel, a flexible connecting member, a printed circuit board, a cover plate, and a bracket;
wherein the flexible connecting member connects the panel and the printed circuit board; the cover plate comprises a flat region and a curved region; an inner surface of the cover plate is attached to a first surface of the panel; the bracket comprises a planar portion; and the planar portion is horizontally attached to the printed circuit board.
Optionally, in some embodiments of the present application, a length of the planar portion is less than a length of the printed circuit board.
Optionally, in some embodiments of the present application, an orthographic projection of the planar portion projected on a plane where the printed circuit board is located falls within an area where the printed circuit board is located.
Optionally, in some embodiments of the present application, the bracket further comprises an arc-shaped portion, the arc-shaped portion is connected to a side of the planar portion close to the flexible connecting member, and a concave surface of the arc-shaped portion is away from the flexible connecting member.
Optionally, in some embodiments of the present application, before the printed circuit board is bonded to a second surface of the panel, the arc-shaped portion and the curved region contact and support each other, and the curved region accommodates a portion of the flexible connecting member, and the arc-shaped portion supports other portions of the flexible connecting member.
Optionally, in some embodiments of the present application, after the printed circuit board is bonded to a second surface of the panel, the curved region accommodates a portion of the flexible connecting member, a convex surface of the arc-shaped portion presses the flexible connecting member, and the planar portion presses the printed circuit board.
Optionally, in some embodiments of the present application, a boundary face between the planar portion and the arc-shaped portion is flush with a boundary face between the printed circuit board and the flexible connecting member.
Optionally, in some embodiments of the present application, a width of the arc-shaped portion is arranged corresponding to a width of the flexible connecting member, and the width of the arc-shaped portion is greater than or equal to the width of the flexible connecting member.
Optionally, in some embodiments of the present application, an arc measure of the arc-shaped portion is greater than 0 degrees and less than or equal to 90 degrees.
Accordingly, the present application provides an electronic apparatus comprising the display device of any embodiment of the present application.
Advantages of the present application:
The present application provides a display device and an electronic apparatus. The display device comprises a panel, a flexible connecting member, a printed circuit board, a cover plate, and a bracket. The flexible connecting member connects the panel and the printed circuit board. The cover plate comprises a flat region and a curved region. An inner surface of the cover plate is attached to a first surface of the panel. The bracket comprises a planar portion. The planar portion is horizontally attached to the printed circuit board. The display device of the present application provides a bracket with a planar portion. Before the printed circuit board is bonded to a second surface of the panel, the planar portion of the bracket is horizontally attached to and supports the printed circuit board, which improves accuracy of a sucking head for sucking the printed circuit board during a bonding process of the printed circuit board.
In order to more clearly illustrate the technical solutions of the present application, figures which will be described in the embodiments are briefly introduced hereinafter. It is obvious that the figures are merely for the purposes of illustrating some embodiments of the present application, and a person having ordinary skill in this field can obtain other figures according to these figures without an inventive work.
The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments of the present application. All other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present application. In addition, it should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional terms such as “up” and “down” generally refer to up and down directions of a device in actual use or working state, and specifically refer to directions in the drawings while “inner” and “outer” are referred to in relation to an outline of the device.
The present application provides a display device and an electronic apparatus to reduce damage of a printed circuit board or a flexible connecting member during a transportation process, and improve accuracy of a sucking head for sucking the printed circuit board during a bonding process of the printed circuit board. Detailed descriptions are provided below. It should be noted that an order of descriptions in the following embodiments is not intended to limit an order of preference on the embodiments.
In one embodiment, please refer to
Specifically, the panel 110 comprises a display panel. The display panel can be an organic light emitting diode (OLED) display panel, a liquid crystal display (LCD), or a light emitting diode (LED) display panel, or any other type of display panel, which is not limited here. An upper side of the panel 110 in the drawings is a cover plate package side of the display panel. Furthermore, the panel 110 can also comprise a backplate and a reinforcing plate disposed under the display panel. For a flexible display panel, since the flexible display panel is usually a thin and flexible structure without a rigid support layer, the flexible display panel cannot support itself due to its relatively low hardness and stiffness. Therefore, the backplate needs to be provided on a back of the flexible display panel to provide support for the flexible display panel. The backplate is generally a flexible support layer, and its material can be an inorganic material, such as glass or metal materials (aluminum alloy, stainless steel, etc.), or can be an organic material, such as hard plastic and usually organic support materials which include, but is not limited to, polyurethane rubber, acrylic materials, and epoxy materials. The support plate is disposed on one side of the backplate away from the flexible display panel. That is to say, the support plate is arranged as a lowermost layer of the panel 110 to support the entire panel 110. The support plate is generally a hard metal plate made of a metal material with a greater modulus in order to strengthen a structure of the entire panel 110 and dissipate heat of the display panel. A material of the metal plate comprises metal copper, aluminum alloy, or stainless steel. An adhesive layer is provided between the backplate and the display panel, and between the backplate and the support plate for bonding them together.
The flexible connecting member 120 is arranged between the panel 110 and the printed circuit board 130 and connects the panel 110 and the printed circuit board 130. The flexible connecting member 120 comprises a plurality of connection wires for electrically connecting the panel 110 and the printed circuit board 130. The connection wires are configured to transmit electrical signals of the printed circuit board 130 to a circuit structure of the panel 110. If the connection wires are broken, it hinders signal transmission from the printed circuit board 130 to the panel 110, and therefore affects performance of the entire display device.
The flexible connecting member 120 is generally a flexible connecting member, which can be bent and folded. With flexibility, the printed circuit board 130 is moved to the back of the panel 110, so as to bond the printed circuit board 130 to the panel 110. The commonly used flexible connecting member is often called chip on film (COF).
The printed circuit board 130 is connected to the panel 110 through the flexible connecting member 120, and the printed circuit board is used to transmit electrical signals to the panel 110, thereby driving normal display functions and operations of the panel 110. Preferably, the printed circuit board 130 is a flexible printed circuit board (FPC).
The bracket 140 is used to support the printed circuit board 130 and the flexible connecting member 120. The bracket 140 is an organic rigid bracket, and the organic rigid bracket is preferably a polyethylene glycol terephthalate (PET) bracket. The bracket 140 comprises the planar portion 141 and the arc-shaped portion 142. The planar portion 141 and the arc-shaped portion 142 are integrally formed. The arc-shaped portion 142 is located at one side of the planar portion 141 close to the flexible connecting member 120. The surface of the bracket 140 close to the convex surface of the arc-shaped portion 142 is the outer surface of the bracket 140, and a surface of the bracket 140 close to a concave surface of the arc-shaped portion 142 is an inner surface of the bracket 140. The outer surface of the bracket 140 is close to the printed circuit board 130 and flexible connecting member 120, the inner surface of the bracket 140 is close to the printed circuit board 130 and the flexible connecting member 120, the outer surface of the planar portion 141 is attached to the printed circuit board 130, and the outer surface of the arc-shaped portion 142 is close to the flexible connecting member 120.
In one embodiment, as shown in
Furthermore, as shown in
Furthermore, the orthographic projection of the planar portion 141 on the plane where the printed circuit board 130 is located is mirror-symmetrical with respect to a central axis of a width side of the printed circuit board 130, which ensures that the planar portion 141 can provide uniform support to the printed circuit board 130 and prevents problems such as damage, tilt, or inaccurate suction of the printed circuit board 130 due to uneven support of the planar portion 141 to the printed circuit board 130 in a subsequent manufacturing process.
Furthermore, as shown in
In one embodiment, a width of the arc-shaped portion 142 is less than or equal to a width of the planar portion 141. In general, the width of the flexible connecting member 120 is less than the width of the printed circuit board 130, so the width of the arc-shaped portion 142 which correspondingly supports the flexible connecting member 120 is less than or equal to the width of the planar portion 141 which correspondingly supports the printed circuit board 130.
In one embodiment, a length of the arc-shaped portion 142 is less than the length of the flexible connecting member 120. Since a portion of the arc-shaped portion 142 is accommodated in the curved region of the cover plate 150 in the subsequent manufacturing process, the length of the arc-shaped portion 142 needs to be less than the length of the flexible connecting member 120, so as to ensure a support function of the arc-shaped portion 142 on a partial area of the flexible connecting member 120. As shown in
In one embodiment, an arc measure of the arc-shaped portion 142 is greater than 0 degrees and less than or equal to 90 degrees.
In one embodiment, please refer to
The bracket 140 comprises a planar portion 141 and an arc-shaped portion 142. An outer surface of the planar portion 141 is attached to the printed circuit board 130. The outer surface of the arc-shaped portion 142 supports other portions of the flexible connecting member 120. The arc-shaped portion 142 and the curved region 152 contact and support each other.
Specifically, in the 3D bonding performed on the display device in the previous embodiment, the display device is packaged using the curved cover plate 150, and a cover plate package side of the display panel is 3D bonded to the cover plate 150 to obtain the display device after the 3D bonding. The display device is the display device in the embodiment shown in
In one embodiment, an inner surface of the curved region 152 and the outer surface of the arc-shaped portion 142 are smoothly connected, which ensures that the flexible connecting member 120 obtains smooth support from a junction between the curved region 152 and the arc-shaped portion 142, and prevents damage of the flexible connecting member 120 resulting from steps (level differences) or protrusions at the junction between the curved region 152 and the arc-shaped portion 142. Furthermore, a radius of an arc of the curved region 152 is equal to a radius of an arc of the arc-shaped portion 142, thus further ensuring a smooth connection between the inner surface of the curved region 152 and the outer surface of the arc-shaped portion 142.
In one embodiment, please refer to
The bracket 140 comprises a planar portion 141 and an arc-shaped portion 142. An outer surface of the planar portion 141 is attached to the printed circuit board 130, and an outer surface of the arc-shaped portion 142 presses the flexible connecting member 120.
Specifically, for the display device in the previous embodiment, a sucking head 160 accurately sucks the printed circuit board 130, and drives the printed circuit board 130 and the bracket 140 to rotate in a counterclockwise direction in
Correspondingly, the present application further provides an electronic apparatus. The electronic apparatus comprises the display device in the embodiment of
In summary, the present application provides a display device and an electronic apparatus. In the display device of the present application, a bracket comprising a planar portion and an arc-shaped portion is attached to a printed circuit board before 3D bonding. After the 3D bonding, the bracket supports the printed circuit board and the flexible connecting member, which facilitates stability of the display device during a transportation process, and reduces damage of the printed circuit board or the flexible connecting member during the transportation process. The bracket supports the printed circuit board horizontally, which improves accuracy of a sucking head for sucking the printed circuit board during a bonding process of the printed circuit board, reducing shaking of the printed circuit board during the bonding process, and preventing damage of wires of the flexible connecting member during the bonding process. After the bonding of the printed circuit board, the bracket continues attaching to and pressing the printed circuit board while pressing the flexible connecting member, which reduces a risk of peeling of a backplate and a support plate due to rebounding of the flexible connecting member after the bonding process. At the same time, the arc-shaped portion of the bracket correspondingly protects the flexible connecting member, thus reducing a risk of damage to the flexible connecting member due to an external force.
The display device and electronic equipment provided in the embodiments of the present application are described in detail above. Specific examples are used in the present disclosure to illustrate the working principles and embodiments of the present application. The descriptions of the above embodiments are only for ease of understanding the method and scope of use of the present application. At the same time, those skilled in the art can change the specific embodiments and the scope of use according to the ideas of the present application. In summary, the content of the present specification should not be understood as a limit to the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202110553281.3 | May 2021 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/100091 | 6/15/2021 | WO |
