Display device

Abstract

The utility model provides a display device. The display device comprises an outer frame, a backlight module and a liquid crystal panel, the outer frame is provided with a containing space, and a plurality of supporting parts are arranged on the inner surface of the bottom of the outer frame. The backlight module is arranged in the accommodating space, and the bottom surface of the backlight module is in contact with the supporting part; the liquid crystal panel is arranged on the backlight module, and a part of a flexible circuit board of the liquid crystal panel is arranged between the inner surface of the bottom of the outer frame and the bottom face of the backlight module. The display device has the beneficial effects that the display device is convenient to produce and manufacture while the structural strength is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0002] At present, the light-emitting principle of some liquid crystal displays is that the light source of the backlight module with light-emitting ability emits light after being powered on, and the light emitted by the light source is homogenized by the diffusion plate of the backlight module, and then the homogenized light is controlled by the liquid crystal panel and emitted to the outside, thereby forming a display image at the front of the display. The liquid crystal panel is generally connected to the control circuit board of the display through a flexible circuit board, and the control circuit board sends a control signal, and the flexible circuit board transmits the control signal to the liquid crystal panel to control the steering of the liquid crystal in the liquid crystal panel, so that the light emission position through the liquid crystal panel changes to form different display images.

[0003] In the related art, in order to facilitate the installation of the control circuit board and the flexible circuit board, the outer frame of the general display is composed of a front frame, a bottom plate and a rear frame which are separately arranged. The light source, the diffuser plate and the liquid crystal panel are surrounded by the front frame and the bottom plate to form protection, and the control circuit board is installed on the back side of the bottom plate. At the same time, the flexible circuit board of the liquid crystal panel extends from one side of the middle frame to the back side of the bottom plate and is connected to the control circuit board. After that, the rear frame is fixed to the back side of the bottom plate, and the control circuit board and the flexible circuit board are protected between the front frame, the bottom plate and the rear frame. Although this assembly method can protect the control circuit board and the flexible circuit board, the assembly process of the various components of the display is complicated, and the production line process is complicated, resulting in high production costs. Utility Model Content

[0004] The present application provides a display device to solve the problem that the display requires multiple components to work together to protect the flexible circuit board and the control circuit board, the assembly process of the components is complicated, and the production line procedures are complicated, resulting in high production costs.

[0005] The technical solution of the present application is implemented as follows. Some embodiments of the present application provide a display device, comprising: an outer frame, a backlight module and a liquid crystal panel; wherein the outer frame is provided with a receiving space, and the inner surface of the bottom of the outer frame is provided with a plurality of supporting parts; the backlight module is arranged in the receiving space, and the bottom surface of the backlight module is in contact with the supporting parts; the liquid crystal panel is located on the backlight module, and a part of the flexible circuit board of the liquid crystal panel is arranged between the inner surface of the bottom of the outer frame and the bottom surface of the backlight module.

[0006] In some embodiments, a length direction of the support portion is parallel to a length direction of the liquid crystal panel.

[0007] In some embodiments, the support portion is a reinforcing rib formed in the accommodating space, and a plurality of reinforcing ribs are disposed in a spaced-apart manner.

[0008] In some embodiments, the cross-sectional shape of each reinforcing rib is one of a rectangle, a trapezoid, and an oval shape.

[0009] In some embodiments, the backlight module includes: a back panel, a light source and a diffusion plate; wherein the light source is arranged on the back panel; the diffusion plate is located on the light source; the inner surface of the first side of the outer frame forms a limiting portion, the limiting portion presses the diffusion plate and supports the liquid crystal panel.

[0010] In some embodiments, the display device further includes: a fixing member; wherein the fixing member is disposed on a second side of the outer frame opposite to the first side, and at least a portion of the fixing member is disposed between the liquid crystal panel and the diffuser plate.

[0011] In some embodiments, a stopper is formed on the second side of the outer frame, and the stopper covers at least a portion of the outer side of the liquid crystal panel.

[0012] In some embodiments, a middle portion is formed on the second side of the outer frame; a stopper is located at the top of the middle portion; a middle support layer protruding into the accommodating space is formed at the bottom of the middle portion; and the diffuser is located between the middle support layer and the stopper.

[0013] In some embodiments, the display device further includes: a control circuit board; the control circuit board is located in the accommodating space and between the inner surface of the bottom of the outer frame and the bottom surface of the backlight module.

[0014] In some embodiments, the display device further includes: a positioning pad; a flexible circuit board of the liquid crystal panel is connected to the control circuit board; and the positioning pad is at least partially located between the outer frame and the flexible circuit board of the liquid crystal panel.

[0015] The beneficial effect of the present application is that: the display device provided by the present application, by arranging a support portion inside the outer frame, while using the support portion to position and install the light source, the formed interlayer space can be used to install components such as a control circuit board, and can also be used to route wires in the accommodation space, so that the integrated outer frame can be used to position, install and protect the control circuit board, reducing the complexity of the outer frame structure, and the inwardly protruding support portion can play a role in enhancing the strength of the outer frame structure. Therefore, the display device provided by the present application has the beneficial effects of high structural strength and low production and assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a display device provided in an embodiment of the present application.

[0017] The meaning of the reference numerals in the accompanying drawings:

[0018] 100. Display device;

[0019] 110, outer frame; 110a, accommodating space; 111, supporting portion; 112, limiting portion; 113, stopping portion; 114, middle portion; 115, middle supporting layer;

[0020] 120, backlight module; 121, back plate; 122, light source; 123, diffusion plate;

[0021] 130. Liquid crystal panel;

[0022] 140. Optical film;

[0023] 150. Fixing parts;

[0024] 160. Control circuit board;

[0025] 170. Positioning pad;

[0026] 180. Flexible circuit board;

[0027] 190, terminal interface;

[0028] A1, top of the outer frame; A2, bottom of the outer frame; A3, first side; A4, second side. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] In this application, unless otherwise specified, directional words such as "upper" and "lower" are used to refer to the directions of the drawings in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, in the description of this application, the term "including" means "including but not limited to".

[0032] The technical solution of this application is as follows:

[0033] The display device 100 provided in some embodiments of the present application includes: an outer frame 110 , a backlight module 120 and a liquid crystal panel 130 .

[0034] Reference Figure 1 The outer frame 110 is a component of the display device 100 for installing and protecting the backlight module 120 and the liquid crystal panel 130. The outer frame 110 is provided with a receiving space 110a inside. The receiving space 110a can be a blank area formed between the inner walls of the outer frame 110 after being surrounded by the inner walls of the outer frame 110, and is used to place components such as circuit boards and optical films in the display device 100 that need to be isolated from the outside world. The backlight module 120 is arranged in the receiving space 110a, and the liquid crystal panel 130 is located on the backlight module 120, that is, the liquid crystal panel 130 is arranged at the top A1 of the outer frame, and the backlight module 120 is located between the liquid crystal panel 130 and the outer frame 110, so that the outer frame 110 is used to install and position the backlight module 120 and the liquid crystal panel 130. In this way, the light emitted by the backlight module 120 is adjusted by the liquid crystal panel 130 to form a display screen for users to watch. The present application does not involve improvements to the light-emitting principle of the backlight module 120 and the working principle of the liquid crystal panel 130 , which will not be elaborated here.

[0035] In order to facilitate the routing of wires in the outer frame 110, or to use the outer frame 110 to protect the flexible circuit board 180 of the liquid crystal panel 130 and the control circuit board 160 that controls the operation of the liquid crystal panel 130, the present application further provides a plurality of support portions 111 on the inner surface of the bottom A2 of the outer frame. The bottom surface of the backlight module 120 contacts the support portions 111. A portion of the flexible circuit board 180 of the liquid crystal panel 130 is provided between the inner surface of the bottom A2 of the outer frame and the bottom surface of the backlight module 120.

[0036] Through the above arrangement, while the backlight module 120 is positioned and supported by the support portion 111, since the support portion 111 props up the backlight module 120, wiring can be performed in the space formed by the bottom surface of the backlight module 120 and the support portions 111, and the flexible circuit board 180 of the liquid crystal panel 130 and the control circuit board 160 that drives the liquid crystal panel 130 can be directly arranged in the accommodating space 110a. Compared with the conventional technical solutions in the prior art, this arrangement can realize the protection of the flexible circuit board 180 and the control circuit board 160 by using the integrally formed outer frame 110, without the need to set up the outer frame 110 additionally, thereby reducing the manufacturing and assembly processes of the rear frame and reducing the production cost. The arrangement of the support portion 111 can also play a role in increasing the structural strength of the outer frame 110, ensuring that the structural strength of the outer frame 110 itself meets the use requirements. The space formed by the bottom surface of the backlight module 120 and the supporting parts 111 can also facilitate heat dissipation of the backlight module 120 and other components in the accommodating space 110 a , so that the components can work stably.

[0037] In some embodiments, the length direction of the support portion 111 is parallel to the length direction of the liquid crystal panel 130. Considering that in the related art, the liquid crystal panel 130 is generally Figure 1 The projection on the horizontal plane of the orientation shown is a rectangular flat panel or a curved panel. Therefore, in the present application, the length direction of the liquid crystal panel 130 can be defined as the straight line direction where the long side of the rectangular projection of the liquid crystal panel 130 on the horizontal plane is located. Alternatively, the liquid crystal panel 130 may be arranged in a manner such as Figure 1 The projection on the horizontal plane in the shown orientation is a square flat panel or a curved panel. In this case, the length direction of the liquid crystal panel 130 is defined as the straight line direction where any side of the square projection of the liquid crystal panel 130 on the horizontal plane is located.

[0038] The above solution limits the extension direction of the support portion 111 . This arrangement can facilitate the spatial layout of the wiring in the accommodating space 110 a , the installation position of the control circuit board 160 , etc.

[0039] In some embodiments, the support portion 111 is a reinforcing rib formed in the accommodation space 110a, and a plurality of reinforcing ribs are arranged separately. Figure 1 , the contact position of the support part 111 and the light source 122 forms a surface contact, so that the support part 111 and the light source 122 are fully in contact to ensure the support effect of the support part 111 on the light source 122. It is understandable that those skilled in the art can set the cross-sectional shape of the reinforcing rib to a rectangle, a trapezoid, other polygons, an oval (i.e., a circle is divided into two semicircular arcs through the center of the circle and translated in opposite directions, and the endpoints of the two semicircular arcs are connected by two parallel lines to form a closed figure), or other shapes with curved contour edges, etc., according to actual needs, and there is no limitation here. And the shapes of each reinforcing rib can be set to the same shape or different shapes.

[0040] In some embodiments, the backlight module 120 includes: a back plate 121, a light source 122 and a diffuser 123. The light source 122 is disposed on the back plate 121, that is, the back plate 121 is used to integrate and install a plurality of light sources 122. The diffuser 123 is disposed between the light source 122 and the liquid crystal panel 130.

[0041] Specifically, refer to Figure 1 The diffusion plate 123 is located on the light source 122 and is used to evenly distribute the light emitted by the light source 122. A limiting portion 112 is formed on the inner surface of the first side A3 of the outer frame 110. The limiting portion 112 is disposed between the liquid crystal panel 130 and the diffusion plate 123 and protrudes into the accommodation space 110a, so that the limiting portion 112 can press the diffusion plate 123 and support the liquid crystal panel 130. The liquid crystal panel 130 is disposed on the limiting portion 112, and the liquid crystal panel 130 is fixed to the limiting portion 112 by, for example, threaded connection, gluing, etc., so that the liquid crystal panel 130 is fixedly installed by the limiting portion 112.

[0042] In an implementable specific scheme, the limiting portion 112 can be made to contact the upper surface of the diffuser plate 123 on the side close to the first side A3 of the outer frame 110, and at the same time, the inner wall of the accommodating space 110a formed by the first side A3 of the outer frame 110 can contact the lower surface of the diffuser plate 123 on the side close to the first side A3 of the outer frame 110, so that the limiting portion 112 and the inner wall of the outer frame 110 are used to support and limit the diffuser plate 123. At this time, the limiting portion 112 directly presses the diffuser plate 123.

[0043] In another embodiment, the display device 100 further includes an optical film 140. The optical film 140 is disposed on the surface of the diffuser 123 away from the light source 122. The light emitted by the light source 122 forms a high-brightness and uniform surface light source 122 under the action of the diffuser 123 and the optical film 140. The working principle of the diffuser 123 and the optical film 140 is common knowledge to those skilled in the art and will not be described in detail here.

[0044] At this time, the lower surface of the diffuser plate 123 can contact the inner wall of the accommodating space 110a formed by the first side A3 of the outer frame 110, and the side of the optical film 140 close to the first side A3 of the outer frame 110 is located between the upper surface of the diffuser plate 123 and the lower surface of the limiting portion 112, so that the limiting portion 112 and the inner wall of the outer frame 110 are used to support and limit the diffuser plate 123 and the optical film 140. At this time, the limiting portion 112 indirectly presses the diffuser plate 123.

[0045] In some embodiments, reference Figure 1 The display device 100 further includes a fixing member 150. The fixing member 150 is disposed on a second side A4 of the outer frame 110 opposite to the first side A3, and at least a portion of the fixing member 150 is disposed between the liquid crystal panel 130 and the diffuser 123. Specifically, the fixing member 150 is fixedly disposed in the accommodating space 110a, and a side of the liquid crystal panel 130 close to the second side A4 of the outer frame 110 is disposed on the fixing member 150. For example, the liquid crystal panel 130 can be fixed on the fixing member 150 by threaded connection, gluing, etc., so that the fixing member 150 is used to further fix and install the liquid crystal panel 130, and the liquid crystal panel 130 and the diffuser 123 are separated by the cooperation between the limiting portion 112 and the fixing member 150.

[0046] In some embodiments, a stopper 113 is formed on the second side A4 of the outer frame 110. The stopper 113 covers the outer side of at least a portion of the liquid crystal panel 130, and the stopper 113 is used to prevent the liquid crystal panel 130 from moving outside the outer frame 110. The side of the liquid crystal panel 130 close to the second side A4 of the outer frame 110 is located between the stopper 113 and the fixing member 150, so as to further limit the position of the liquid crystal panel 130.

[0047] In some embodiments, the second side A4 of the outer frame 110 is formed with a middle portion 114. Figure 1 , the stopper 113 is located at the top of the middle part 114134, and the bottom of the middle part 114 is formed with an intermediate support layer 115 protruding into the accommodating space 110a. The diffuser 123 is located between the intermediate support layer 115 and the stopper 113. More specifically, the end of the fixing member 150 away from the liquid crystal panel 130 is detachably fixedly connected to the intermediate support layer 115, so that the side of the diffuser 123 close to the second side A4 of the outer frame 110 is pressed by the fixing member 150 and the intermediate support layer 115. The connection method between the fixing member 150 and the intermediate support layer 115 can be set to threaded connection, gluing, snap-on connection, etc. according to actual needs, which is not limited here.

[0048] Through the above scheme, by utilizing the cooperation of the intermediate support layer 115, the fixing member 150 and the stopper 113, the diffuser 123, the optical film 140, the liquid crystal panel 130 and other structures can be positioned and installed. Compared with the prior art, this arrangement can save the manufacture and use of the front frame, and utilize the integrated outer frame 110 to realize the installation and positioning of each component of the display device 100, thereby further reducing the production cost. In addition, the reduction of components assembled on the outer surface of the outer frame 110 can make the display device 100 more integrated, reduce the visible parts assembly boundary, and make the whole more beautiful.

[0049] In some embodiments, the display device 100 further includes: a control circuit board 160. The control circuit board 160 controls the liquid crystal panel 130 by means of electrical control so that it realizes the light control function, and the control circuit board 160 can also be further used to control the light emission of the light source 122. The present application does not involve the improvement of the control principle of the control circuit board 160 on the light source 122 or the liquid crystal panel 130, so the working principle of the control circuit board 160 is not repeated here. Due to the setting of the support portion 111, the control circuit board 160 can be directly installed in the accommodating space 110a, for example, the control circuit board 160 can be located between the inner surface of the bottom A2 of the outer frame and the bottom surface of the backlight module 120. The control circuit board 160 and the light source 122 are both arranged in the accommodating space 110a, that is, the two are located on the same side of the inner wall of the accommodating space 110a formed at the bottom of the outer frame 110, and the protection of the control circuit board 160 is realized by using the bottom wall of the outer frame 110.

[0050] Specifically, the flexible circuit board 180 of the liquid crystal panel 130 is located in the accommodating space 110a and is connected to the control circuit board 160, so that the flexible circuit board 180 transmits the control electrical signal emitted by the control circuit board 160 to the liquid crystal panel 130, so that the liquid crystal panel 130 works and realizes the light control function of the liquid crystal panel 130.

[0051] In some embodiments, the display device 100 further includes a positioning pad 170. The positioning pad 170 is at least partially located between the outer frame 110 and the flexible circuit board 180, and the positioning pad 170 is made of a soft material, such as silica gel, foam, etc. The positioning pad 170 is used to separate the flexible circuit board 180 and the outer frame 110 to prevent the two from contacting and causing the flexible circuit board 180 to be worn.

[0052] Specifically, refer to Figure 1 , the positioning pad 170 can be arranged between the fixing member 150 and the middle supporting layer 115, and the positioning pad 170 is wrapped around the outside of at least a portion of the flexible circuit board 180. In this way, the flexible circuit board 180 can be connected between the liquid crystal panel 130 and the control circuit board 160 along the second side A4 of the outer frame 110, and the fixing member 150 and the positioning pad 170 are used to limit the flexible circuit board 180, thereby reducing the possibility of loose connection between the flexible circuit board 180 and the liquid crystal panel 130, and between the flexible circuit board 180 and the control circuit board 160.

[0053] Of course, according to actual needs, the flexible circuit board 180 can also be disposed in the accommodating space 110 a and close to the first side A3 of the outer frame 110 , which is not limited here.

[0054] In some embodiments, reference Figure 1 The bottom A2 of the outer frame is provided with an opening connected to the accommodation space 110a, and the opening exposes the terminal interface 190 of the control circuit board 160. Specifically, the terminal interface 190 is a data interface for the control circuit board 160 to exchange data with external devices such as a desktop computer host, a notebook computer motherboard, and a main control chip of a TV. For example, the terminal interface 190 can refer to a DVI interface, an HDMI interface, a PD interface, a USB interface, a type-C interface, etc. integrated on the control circuit board 160. Exposing the terminal interface 190 through the opening can facilitate the use of the terminal interface 190 to connect the display device 100 with external devices and exchange data.

[0055] Of course, the present application may have many other embodiments. Without departing from the spirit and essential points of the present application, technicians familiar with the field may make various corresponding changes and modifications based on the present application, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present application.

Claims

1. A display device, characterized in that: include: An outer frame, wherein the outer frame is provided with a receiving space, and the inner surface of the bottom of the outer frame is provided with a plurality of supporting parts; a backlight module, wherein the backlight module is arranged in the accommodation space, and a bottom surface of the backlight module is in contact with the support portion; The liquid crystal panel is located on the backlight module, and a part of the flexible circuit board of the liquid crystal panel is arranged between the inner surface of the bottom of the outer frame and the bottom surface of the backlight module.

2. The display device according to claim 1, characterized in that The length direction of the supporting portion is parallel to the length direction of the liquid crystal panel.

3. The display device according to claim 1, characterized in that The support portion is a reinforcing rib formed in the accommodating space, and a plurality of the reinforcing ribs are arranged in a spaced-apart manner.

4. The display device according to claim 3, characterized in that: The cross-sectional shape of each reinforcing rib is one of a rectangle, a trapezoid, and an oval shape.

5. The display device according to claim 1, characterized in that The backlight module comprises: Back panel; a light source, disposed on the back panel; and a diffusion plate, the diffusion plate being located on the light source; Wherein, a limiting portion is formed on the inner surface of the first side of the outer frame, and the limiting portion is pressed against the diffusion plate and supports the liquid crystal panel.

6. The display device according to claim 5, characterized in that: The display device further includes: A fixing member is disposed on a second side of the outer frame opposite to the first side, and at least a portion of the fixing member is disposed between the liquid crystal panel and the diffusion plate.

7. The display device according to claim 6, characterized in that: A stopper is formed on the second side of the outer frame, and the stopper covers at least a portion of the outer side of the liquid crystal panel.

8. The display device according to claim 7, characterized in that: The second side of the outer frame is formed with a middle portion; the stopper is located at the top of the middle portion; the bottom of the middle portion is formed with a middle support layer protruding into the accommodating space; the diffuser is located between the middle support layer and the stopper.

9. The display device according to any one of claims 1 to 8, characterized in that: The display device further includes: a control circuit board; the control circuit board is arranged in the accommodation space and is located between the inner surface of the bottom of the outer frame and the bottom surface of the backlight module.

10. The display device according to claim 9, characterized in that: The display device further includes: a positioning pad; the flexible circuit board of the liquid crystal panel is connected to the control circuit board; and the positioning pad is at least partially located between the outer frame and the flexible circuit board of the liquid crystal panel.

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