CN212989824U

CN212989824U - Liquid crystal display device with a light guide plate

Info

Publication number: CN212989824U
Application number: CN202021990862.0U
Authority: CN
Inventors: 刘盛; 彭武轮; 申小玲
Original assignee: Shenzhen Easyquick Ltd By Share Ltd
Current assignee: Shenzhen Easyquick Ltd By Share Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-04-16
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a liquid crystal display, which comprises a liquid crystal module, a backlight module and a shell component, wherein the backlight module used for providing light for the liquid crystal module is arranged at one side of the liquid crystal module; the frame body is connected to the inner side of the shell and surrounds the outer edges of the backlight module and the liquid crystal module, and the frame body comprises a positioning body which is used for fixing the backlight module and supporting the liquid crystal module. The liquid crystal display simplifies the structure of the protective shell on the basis of realizing the installation and fixation of the backlight module and the liquid crystal module, and the whole thickness of the liquid crystal display is smaller.

Description

Liquid crystal display device with a light guide plate

Technical Field

The utility model belongs to the technical field of the display technique and specifically relates to a liquid crystal display is related to.

Background

Each module structure of LCD screen is comparatively fragile, generally need set up a protective housing or frame outside the module and protect, for example backlight unit can set up the glued membrane frame. The shell of display self and the protective housing of module superpose each other and can increase the whole thickness of display, influence the portability and the frivolity of display.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a liquid crystal display, on the realization to backlight unit, the fixed basis of liquid crystal module installation, simplified the structure of protective housing, liquid crystal display's thickness is less.

An embodiment of the utility model provides a liquid crystal display, include: a liquid crystal module; the backlight module is used for providing light for the liquid crystal module, and is arranged on one side of the liquid crystal module; the shell assembly comprises a shell and a frame body, the shell is attached to one side, away from the liquid crystal module, of the backlight module, and the liquid crystal module and the backlight module are accommodated in the shell; the frame body is connected to the inner side of the shell, the frame body is arranged around the outer edges of the backlight module and the liquid crystal module, the frame body comprises a positioning body, and the positioning body is used for fixing the backlight module and supporting the liquid crystal module.

The utility model discloses LCD has following beneficial effect at least: the shell attached to one side of the backlight module can be used as a protective shell of the backlight module, meanwhile, the shell can contain the backlight module and the liquid crystal module, namely the shell can be used as a shell of the whole liquid crystal display, and the positioning body of the frame body can be used for fixing the backlight module and supporting the liquid crystal module; therefore, the embodiment of the utility model provides a realizing on the fixed basis of backlight unit, liquid crystal module installation, simplified the structure of LCD protective housing, LCD's whole thickness is less.

According to the utility model discloses a liquid crystal display of other embodiments, the location body is towards being close to the direction protrusion of LCD module, the LCD module is located the top of the location body, just the location body can support the LCD module.

According to the utility model discloses a liquid crystal display of other embodiments, backlight unit is located the location body with between the casing, the location body with the casing can the centre gripping backlight unit.

According to the utility model discloses a liquid crystal display of other embodiments, the casing has the cavity, liquid crystal module with backlight unit all is located in the cavity, the lid covers the opening side of casing is in order to seal the cavity.

According to the liquid crystal display of other embodiments of the present invention, the cover body is located above the frame body, and the frame body can support the cover body.

According to other embodiments of the present invention, the side wall of the housing is surrounded at the outer edge of the cover.

According to the utility model discloses a liquid crystal display of other embodiments, the lid can cover liquid crystal module keeps away from one side of backlight unit, the lid is transparent.

According to the utility model discloses a liquid crystal display of other embodiments still includes electronic control module, backlight unit with liquid crystal module all with electronic control module electricity is connected, the casing still includes the installation department, the installation department court the outside protrusion of casing, so that one side of installation department towards liquid crystal module forms the mounting groove, electronic control module holding is in the mounting groove.

According to the utility model discloses a liquid crystal display of other embodiments still includes support piece, support piece with the casing is connected, just support piece covers the opening side of mounting groove, automatically controlled module with support piece orientation one side of mounting groove is connected.

According to the utility model discloses a liquid crystal display of other embodiments still includes the broadcast module, the broadcast module with electronic control module connects, the broadcast module also sets up in the mounting groove.

Drawings

FIG. 1 is an exploded schematic view of a liquid crystal display in some embodiments;

FIG. 2 is a schematic diagram of connections at the edge of a liquid crystal display in some embodiments;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is a schematic view of the bottom of a liquid crystal display in some embodiments.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature.

Referring to fig. 1 and 2, a liquid crystal display including a liquid crystal module 101, a backlight module 111, and a housing assembly 104 in some embodiments is shown.

The liquid crystal module 101 mainly includes a liquid crystal layer and two conductive glass substrates (not shown in the figure), the liquid crystal layer is located between the conductive glass substrates, and the twisted state of the liquid crystal molecules can be changed by electrifying the conductive glass substrates, so that the refraction state of the liquid crystal molecules to light rays is changed; regular refraction of light can be achieved by controlling the electric field, thereby displaying a target image. The specific structure of the liquid crystal module 101 and the principle of displaying images are well known in the art and will not be described in detail herein.

The backlight module 111 is disposed at one side of the liquid crystal module 101 and is used for providing light for the liquid crystal module 101, and the backlight module 111 includes a backlight 103, a light guide plate 110 and a backlight film 102. Referring to fig. 2, the backlight film 102 is located above the light guide plate 110 (the backlight film 102 and the light guide plate 110 can be attached to each other), and the liquid crystal module 101 is located above the backlight film 102; referring to fig. 1, the backlight 103 is in a strip shape and disposed at a side portion of the light guide plate 110, light emitted from the backlight 103 is emitted backward and enters the light guide plate 110, and the light is reflected by the light guide plate 110 and emitted upward, and passes through the backlight film 102 and the liquid crystal module 101 in sequence. The backlight film 102 may specifically include a brightness enhancement film for increasing brightness, a diffusion film for softening light, and the like, which are not listed here.

Referring to fig. 1 to 3, the housing assembly 104 includes a housing 202 and a frame 201. The housing 202 is attached to a side of the backlight module 111 away from the liquid crystal module 101 (refer to fig. 1, specifically, attached to a lower side of the backlight module 111), and the backlight module 111 and the liquid crystal module 101 are accommodated in the housing 202. The specific material of the housing 202 may be an aluminum alloy, which has a good strength and a relatively small weight, and is favorable for ensuring the strength of the housing 202 and the lightness of the display. The frame 201 is connected to the inner side of the housing 202 (the side where the liquid crystal module 101 and the backlight module 111 are installed is taken as the inner side, and the frame 201 can be adhered to the inner side of the housing 202), and the frame 201 is surrounded at the outer edges of the liquid crystal module 101 and the backlight module 111. The frame 201 includes a positioning body 302, and the positioning body 302 can fix the backlight module 111 and support the liquid crystal module 101. Referring to fig. 2 and 3, the top of the positioning member 302 supports the liquid crystal module 101, and the bottom of the positioning member 302 presses the light guide plate 110.

The specific material of the frame 201 can be plastic, and compared with the aluminum alloy shell 202, the rigidity of the frame 201 is small, and the liquid crystal module 101 and the backlight module 111 are not easy to be broken due to collision. In addition, the frame 201 may be provided with a groove or a hole (not shown) for fixing a connector or a wire, and the wire or the connector passes through the outer edges of the liquid crystal module 101 and the backlight module 111, so as to avoid affecting the display effect.

The utility model provides a liquid crystal display, the casing 202 of laminating backlight unit 111 one side can regard as backlight unit 111's protective housing, and simultaneously, casing 202 can hold backlight unit 111 and liquid crystal module 101, and namely casing 202 can regard as whole liquid crystal display's shell, and the location body 302 of framework 201 can both fix backlight unit 111 and can also support liquid crystal module 101; therefore, the structure of the protective shell in the liquid crystal display is simplified on the basis that the backlight module and the liquid crystal module are fixedly installed, and the whole thickness of the liquid crystal display is smaller.

Referring to fig. 2 and 3, the light guide plate 110 is disposed above the bottom of the inner side of the housing 202, the backlight film 102 is attached above the light guide plate 110, and the liquid crystal module 101 is disposed above the backlight film 102; the frame 201 further includes a main body 301, the main body 301 is connected to a positioning body 302, the positioning body 302 protrudes toward a direction close to the liquid crystal module 101, and the top of the positioning body 302 supports the lower side of the liquid crystal module 101, so as to prevent the whole weight of the liquid crystal module 101 from pressing on the backlight module 111 below, and reduce the risk of the central area of the backlight module 111 being pressed and damaged. In order to stabilize the position of the liquid crystal module 101, a glue may be applied to the upper side of the alignment member 302 to adhere the alignment member 302 to the edge of the liquid crystal module 101. The positioning body 302 is clamped by the light guide plate 110 and the liquid crystal module 101, and the positioning body 302 tends to deform downward under the action of gravity of the liquid crystal module 101, so that, after the backlight module 111 is assembled, the bottom of the positioning body 302 and the housing 202 clamp the backlight module 111 (more specifically, the light guide plate 110 in the backlight module 111 is clamped), thereby positioning the backlight module 111.

Referring to fig. 1 to 3, in some embodiments, the lcd further includes a cover 105, the housing 202 itself has a cavity, the lcd 101 and the backlight module 111 are both accommodated in the cavity, and the cover 105 covers the open side of the housing 202 to close the cavity, so as to prevent the lcd 101 and the backlight module 111 from being separated from the housing 202. In some embodiments, the cover 105 is transparent (for example, the cover 105 is made of glass) and covers a side of the liquid crystal module 101 away from the backlight module 111; the cover 105 can prevent the liquid crystal module 101 from directly contacting with the outside, protect the fragile liquid crystal module 101, and light can penetrate through the liquid crystal module 101 and the cover 105 to be emitted, so that the display of images is not influenced by the cover 105. The cover 105 may be a common cover or a touch cover, so as to implement a touch screen control function of the display.

Referring to fig. 2, the cover 105 is located above the frame 201, the bottom of the main body 301 in the frame 201 is supported by the housing 202, and the top of the main body 301 supports the edge of the cover 105, so as to prevent the entire weight of the cover 105 from pressing on the liquid crystal module 101 and damaging the liquid crystal module 101. The top of the main body 301 may also be coated with glue to fix the cover 105. Referring to fig. 2, in some embodiments, the sidewall portion of the housing 202 surrounds the outer edge of the cover 105, and the edge portion of the cover 105 is protected by the housing 202 and is not easily damaged.

Referring to fig. 1, in some embodiments, the lcd includes an electronic control module 106, the lcd 101 and the backlight module 111 are electrically connected to the electronic control module 106 (wires and connectors for electrical connection are not shown), and the electronic control module 106 is configured to receive external information and control operations of the lcd 101 and the backlight module 111. The electronic control module 106 includes a circuit board, wherein an interface for connecting the display with an external device may be disposed on one side of the circuit board, and a key for controlling the operation of the liquid crystal display may be disposed on the other side of the circuit board. Circuits for controlling the operation of liquid crystal displays are well known in the art and the circuit configuration will not be described in detail herein.

Referring to fig. 1 and 4, the housing 202 includes a mounting portion 401, the mounting portion 401 protrudes toward the outside of the housing 202, a mounting groove 107 is formed on a side of the mounting portion 401 facing the liquid crystal module 101, and the electronic control module 106 is accommodated in the mounting groove 107. As a whole, in the liquid crystal display, the thickness of the region where the mounting portion 401 is located is large, but the thickness of the region other than the mounting portion 401 is still small (see fig. 1, the thickness direction corresponds to the vertical direction in fig. 1). The installation part 401 and the installation groove 107 are arranged to enable the liquid crystal display to be provided with the protruding area only at partial positions, so that the whole thickness of the liquid crystal display is not greatly influenced, and the whole volume of the liquid crystal display is favorably reduced.

In order to facilitate the installation and fixing of the electronic control module, in some embodiments, the lcd further includes a supporting member 108, the supporting member 108 is connected to the housing 202 and covers the opening side of the mounting groove 107, and the electronic control module 106 is connected to a side of the supporting member 108 facing the mounting groove 107. The support 108 may be connected to the housing 202 by screws, and the electronic control module 106 may be fixed to the support 108 by a snap fit or the like provided on the support 108.

In some embodiments, the lcd further includes a broadcast module 109, the broadcast module 109 is electrically connected to the electronic control module 106, the broadcast module 109 is configured to play sound information matched with the image information, and the specific operation is controlled by the electronic control module 106. Broadcast module 109 also sets up in mounting groove 107, and broadcast module 109 includes the speaker, and the speaker is usually thicker, and mounting groove 107 has great space, is fit for the holding speaker, and broadcast module 109 can be fixed on support piece 108 through structure such as screw, buckle. In addition, referring to fig. 4, a sound hole 402 (the sound hole 402 is a through hole) is formed in the wall surface of the mounting groove 107 at a position corresponding to the sound module 109, so that sound can be transmitted from the mounting groove 107.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. A liquid crystal display, comprising:

a liquid crystal module;

the backlight module is used for providing light for the liquid crystal module, and is arranged on one side of the liquid crystal module;

the shell assembly comprises a shell and a frame body, the shell is attached to one side, away from the liquid crystal module, of the backlight module, and the liquid crystal module and the backlight module are accommodated in the shell; the frame body is connected to the inner side of the shell, the frame body is arranged around the outer edges of the backlight module and the liquid crystal module, the frame body comprises a positioning body, and the positioning body is used for fixing the backlight module and supporting the liquid crystal module.

2. The liquid crystal display of claim 1, wherein the alignment member protrudes toward a direction close to the liquid crystal module, and the liquid crystal module is located above the alignment member, and the alignment member is capable of supporting the liquid crystal module.

3. The liquid crystal display of claim 2, wherein the backlight module is located between the positioning body and the housing, and the positioning body and the housing can hold the backlight module.

4. The liquid crystal display of claim 1, further comprising a cover, wherein the housing has a cavity, the liquid crystal module and the backlight module are both located in the cavity, and the cover covers an open side of the housing to close the cavity.

5. The liquid crystal display of claim 4, wherein the cover is located above the frame, and the frame is capable of supporting the cover.

6. The liquid crystal display of claim 4, wherein the sidewall of the housing surrounds the outer edge of the cover.

7. The liquid crystal display of claim 4, wherein the cover is capable of covering a side of the liquid crystal module away from the backlight module, and the cover is transparent.

8. The liquid crystal display according to any one of claims 1 to 7, further comprising an electronic control module, wherein the backlight module and the liquid crystal module are electrically connected to the electronic control module, the housing further comprises a mounting portion protruding toward an outer side of the housing, so that a mounting groove is formed at one side of the mounting portion facing the liquid crystal module, and the electronic control module is accommodated in the mounting groove.

9. The lcd apparatus of claim 8, further comprising a support member coupled to the housing and covering an open side of the mounting groove, wherein the electronic control module is coupled to a side of the support member facing the mounting groove.

10. The lcd of claim 8, further comprising a broadcast module electrically connected to the electronic control module, the broadcast module also being disposed in the mounting groove.