CN107277407A - Liquid crystal TV set - Google Patents

Abstract

The invention discloses a liquid crystal television, comprising: a casing, the casing includes a back plate, two side plates respectively arranged on two opposite sides of the back plate, and two limit frame strips respectively set corresponding to the two side plates, the limit The limit frame bar includes a connected limit part and a connecting part. The connection part is fitted and fixed on the side plate. A chute extending along the length direction of the side plate; a display module, which includes a support frame, a display screen and an optical film set fixed on the support frame; the frame bars on opposite sides of the support frame are respectively slidably installed into the two chutes, so that the display module is installed in the casing; and the electric control module, the electric control module is arranged in the casing, and includes a main control board integrated with a TV signal processing module, the main control board and The display is electrically connected. The technical scheme of the invention can improve the assembly efficiency of the liquid crystal television.

Description

LCD TV

technical field

The invention relates to the field of televisions, in particular to a liquid crystal television.

Background technique

Currently, common LCD TVs on the market usually include a casing, a reflector, a light guide plate, other optical films and a display screen, wherein the casing includes a back plate, a plastic frame and a front frame. In the process of assembling this type of LCD TV, it is generally assembled one by one in the following order: back panel→reflector→light guide plate→plastic frame→other optical film→display→front frame. And scattered, resulting in complicated assembly process and low assembly efficiency.

Contents of the invention

The main purpose of the present invention is to provide a liquid crystal television, aiming at improving the assembly efficiency of the liquid crystal television.

In order to achieve the above object, the liquid crystal television proposed by the present invention includes:

The casing, the casing includes a back plate, two side plates respectively arranged on the opposite sides of the back plate, and two limit frame bars respectively corresponding to the two side plates, and the limit frame bars include connected A limiting part and a connecting part, the connecting part is fitted and fixed on the side plate, the limiting part is opposite to the back plate, so that the two limiting frame strips can be placed on the opposite sides of the back plate Each side defines a chute extending along the length direction of the side plate;

A display module, the display module includes a support frame, a display screen and an optical film set fixed on the support frame; the frame bars on opposite sides of the support frame are respectively slidably installed to the two chute inside, so that the display module is installed in the housing; and

An electric control module, the electric control module is arranged on the housing, and includes a main control board integrated with a TV signal processing module, and the main control board is electrically connected to the display screen.

Preferably, the limiting portion is set as an integral plate-shaped member extending along the corresponding side of the back plate; or, the limiting portion includes a plurality of intermittently arranged along the extending direction of the corresponding side of the back plate. a plate.

Preferably, the connecting portion is configured as an integral plate-like member extending along the corresponding side of the back panel, and is fitted and fixed on the outer surface of the corresponding side panel.

Preferably, the connecting portion is welded or glued to the corresponding side plate.

Preferably, the side frame bar includes a base plate and a partition provided on the inner side of the substrate, and the display screen and the optical film assembly are provided on opposite sides of the partition.

Preferably, the side frame bar further includes a limiting plate arranged on the inner surface of the base plate, the limiting plate is spaced apart from the partition, and the side of the display screen is located between the partition and the partition. between the limiting plates.

Preferably, both the display screen and the optical film group are fixed to the partition.

Preferably, the housing further includes a top plate arranged on the top edge of the back plate, and the bottom edge of the back plate is empty, so as to form a space between the lower ends of the two side plates for the display module to slide into. Mounting port for installation;

The display module slides into the casing from the installation opening until the top of the display module abuts against the top plate.

Preferably, the top board and the back board are integrally formed; or, the top board is an independent part fixedly connected to the back board.

Preferably, both the bottom edge and the top edge of the backboard are empty, so as to form an installation opening between the lower ends of the two slide grooves and a decorative opening between the upper ends of the two slide grooves; A set slides into the housing from either the mounting opening or the trim opening.

Preferably, the LCD TV further includes a top decoration that closes the decoration opening.

Preferably, the optical film set includes a light guide plate, and the bottom end of the support frame is empty; the LCD TV also includes a sealing assembly that closes the installation opening, and the sealing assembly is connected to the bottom of the light guide plate There is a backlit light strip between the sides.

Preferably, the sealing assembly includes a light bar heat sink, and the light bar heat sink includes a first heat sink for mounting on the back of the backlight light bar, and a heat sink connected to one side edge of the first heat sink. The second heat dissipation plate is attached and fixed on the back of the back plate.

Preferably, the sealing assembly further includes a lower decorative frame strip, the lower decorative frame strip includes a decorative bottom plate, and a decorative front side plate and a decorative rear side plate respectively arranged on opposite sides of the decorative bottom plate, the decorative bottom plate and A screen support bar arranged side by side with the backlight strip is provided between the bottom edges of the display screen, the decorative rear side panel is fitted and fixed on the outer surface of the second heat dissipation plate, and the decorative front side panel Cover at least to the bottom edge of the display screen.

In the technical solution of the present invention, when assembling the LCD TV, the display screen and the optical film group can be installed on the support frame first to obtain a display module as a whole module, and then the display module can be integrally The display module can be installed on the casing by sliding the opposite side frame bars of the support frame into the two chute respectively. In this way, on the one hand, the modular installation of the LCD TV is realized, and the LCD TV is reduced in size. The parts of the machine are scattered, which simplifies the assembly process and improves the assembly efficiency; on the other hand, it can save the assembly screws between the shell and the display module, which not only saves the cost, but also improves the simplicity of the appearance of the shell, and through The installation space required for assembling the screws is reduced to make the LCD TV thinner and realize the effect of a narrow frame. Moreover, in the present invention, workers do not need to carry the housing when assembling the display module, and the assembling operation of the workers is more convenient.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic diagram of an exploded structure of an embodiment of a liquid crystal television of the present invention;

Fig. 2 is a sliding assembly diagram between the display module and the housing of the LCD TV in Fig. 1 at the rear view angle;

Fig. 3 is a partial enlarged view of place A in Fig. 1;

Fig. 4 is a sliding assembly diagram between the display module and the housing of the LCD TV in Fig. 1 at a front view;

Fig. 5 is a partial enlarged view of place B in Fig. 4;

Fig. 6 is a schematic diagram of the exploded structure of the display module of the LCD TV in Fig. 1;

FIG. 7 is a schematic view of the horizontal cross-sectional structure of the assembled module and housing shown in FIG. 2 .

Explanation of reference numbers:

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention provides a liquid crystal television.

Referring to Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 7, in one embodiment of the present invention, the LCD TV includes:

Housing 1, the housing 1 includes a back plate 11, two side plates 12 disposed on the opposite sides of the back plate 11, and two limit frame bars 13 respectively corresponding to the two side plates 12, the limit frame bars 13 It includes a connected limiting portion 132 and a connecting portion 131, wherein the connecting portion 131 is fitted and fixed on the side plate 12, and the limiting portion 132 is opposite to the back plate 11, so that the two limiting frame strips 13 are connected to the back plate 11. The opposite sides limit the chute 10 extending along the length direction of the side plate 12;

A display module 2, the display module 2 includes a support frame 21, a display screen 22 and an optical film set 23 fixed on the support frame 21; and

An electric control module (not shown in the figure), the electric control module is arranged in the casing 1 and includes a main control board integrated with a TV signal processing module, and the main control board is electrically connected to the display screen 22 .

Without loss of generality, in this embodiment, the optical film set 23 includes a reflector 232, a light guide plate 231 and other optical films; the display screen 22 usually adopts an LCD screen; The obtained TV signal controls the display screen 22 to display the TV image corresponding to the TV signal.

In this embodiment, the back plate 11 and the side plates 12 are preferably integrally formed, and the limiting portion 132 and the connecting portion 131 are also preferably integrally formed, so as to facilitate mass production of the housing 1 .

In this embodiment, the limiting portion 132 is set as an integral plate-like member extending along the corresponding side of the back plate 11. It can be understood that the limiting portion 132 is located on the front side of the display screen 22 and is an appearance part to a certain extent. The setting of the overall plate-shaped part can ensure that the appearance of the LCD TV is good; of course, in other embodiments, the limiting part 132 can also include a plurality of plate-shaped parts intermittently arranged in the extending direction of the corresponding side of the back plate 11. Parts, like this, also can realize its position-limiting effect. The connecting portion 131 is preferably set as an integral plate-shaped member extending along the corresponding side of the back plate 11, and is fitted and fixed on the outer surface of the corresponding side plate 12, so as to avoid seeing the connecting portion 131 and the connecting portion 131 on the front side of the housing 1. Corresponding to the joints between the side plates 12 , the front side of the housing 1 can have an integrated appearance; of course, in other embodiments, the connecting portion 131 can also be fitted and fixed on the inner surface of the corresponding side plates 12 . Furthermore, in this embodiment, the connecting portion 131 is welded or bonded to the corresponding side plate 12, so that, compared with the technical solution of fixing by screw locking, this technical solution can avoid the cumbersome screw assembly, And without the use of additional tools. It should be noted that, in this embodiment, the side plate 12 can be set as a flat plate, or can be set as an arc plate (specifically, the cross section of the side plate 12 perpendicular to the extending direction of the corresponding side is set in an arc shape).

In the technical solution of the present invention, when assembling the LCD TV, the display screen 22 and the optical film group 23 can be installed on the support frame 21 first to obtain a display module 2 that is a module as a whole, and then the display The module 2 is integrally slid and installed into the two slide grooves 10 through the frame bars 211 on opposite sides of the support frame 21, so that the display module 2 can be installed on the housing 1. In this way, on the one hand, the LCD TV The modular installation of the LCD TV reduces the scattered parts of the LCD TV, simplifies the assembly process, and improves the assembly efficiency; on the other hand, the assembly screws between the housing 1 and the display module 2 can be saved, which not only saves costs, The simplicity of the appearance of the housing 1 is also improved, and the LCD TV is made thinner by reducing the installation space required for assembling screws, thereby achieving the effect of a narrow frame. Moreover, in the present invention, workers do not need to carry the housing 1 when assembling the display module 2 , and the assembling operation of the workers is more convenient.

It should be noted that, in the technical solution of the present invention, there may be an adapted sliding assembly between the support frame 21 and the chute 10, that is, there is no gap in the sliding between the support frame 21 and the chute 10; The sliding assembly of the gap, that is, the sliding between the support frame 21 and the slide groove 10 may have a gap.

Preferably, at least one of the outer surface of the side frame bar 211 of the support frame 21 and the inner groove surface of the chute 10 is set as a smooth surface, so as to improve the smoothness of relative sliding between the two, thereby further improving the performance of the LCD TV. assembly efficiency.

Further, for the support frame 21 , the side frame bar 211 includes a base plate 211 a and a partition plate 211 b disposed on the inner side of the base plate 211 a. Wherein, the chute 10 is disposed on the outer surface of the substrate 211a, and the display screen 22 and the optical film group 23 are respectively disposed on opposite sides of the partition 211b. It can be understood that the arrangement of the partition 211 b can provide attachment and support for the assembly of the display screen 22 and the optical film group 23 on the support frame 21 . Specifically, referring to Fig. 6, when assembling the display module 2, the display screen 22 is first installed on one side of the partition 211b to form a support frame-display screen assembly, and then the support frame-display screen assembly is Flip over and install other optical films (such as DOP film 233), light guide plate 231 and reflector 232 on the other side of the partition 211b in sequence, so as to complete the modular assembly of the display module 2, ready to be assembled and used as a whole . In this embodiment, the display screen 22 and the optical film group 23 are preferably fixed on the partition 211b. Specifically, the display screen 22 can be bonded and fixed to the partition 211b, and the material used for bonding can be viscous glue. It can also be double-sided tape, which is not limited in the present invention.

In this embodiment, preferably, the side frame bar 211 of the support frame 21 further includes a limiting plate 211c arranged on the inner surface of the base plate 211a, the limiting plate 211c is arranged at intervals from the partition plate 211b, and the side of the display screen 22 It is located between the partition plate 211b and the limiting plate 211c; it can be understood that the display screen 22 is generally heavy, and it is difficult to ensure that the display screen 22 can be stably fixed on the support frame 21 only through its bonding with the partition board 211b. , the addition of the limiting plate 211c can limit the display screen 22 from the direction away from the surface of the partition plate 211b and from the supporting frame 21 . Preferably, the base plate 211a, the partition plate 211b and the limiting plate 211c are integrally formed to facilitate mass production, which may be integrally formed by extrusion or integrally formed by injection molding.

In this embodiment, further, the casing 1 further includes a top plate arranged on the top edge of the back plate 11, and the bottom edge of the back plate 11 is left empty, so as to form a display module 2 between the lower ends of the two side plates 12. Slide into the mounting opening of the mount. The display module 2 slides into the casing 1 from the installation opening until the top of the display module 2 abuts against the top plate. In this embodiment, the top plate is preferably integrally formed with the back plate 11 to facilitate mass production of the housing 1 ; of course, in other embodiments, the top plate can also be an independent part fixedly connected to the back plate 11 . Without loss of generality, on the casing 1 , generally, both ends of the top plate are respectively connected to top ends of the side plates 12 . It can be understood that in this embodiment, the overall sliding assembly direction of the display module 2 is the direction from the bottom edge of the back plate 11 to the top edge, and the setting of the top plate can prevent the display module 2 from slipping during the overall sliding assembly process. The phenomenon that the top edge of the backplane 11 appears. However, the design is not limited thereto. In other embodiments, the installation opening of the housing 1 can also be formed on the top of the housing 1, so that the overall sliding assembly direction of the display module 2 is from the top edge of the back plate 11 toward the bottom. The direction of the edge; for example but not limited to, the bottom edge and the top edge of the backboard 11 are all vacant, so as to form an installation opening between the lower ends of the two chute 10, and form a decorative opening between the upper ends of the two chute 10, this , the display module 2 can slide into the casing 1 from any one of the installation opening and the decoration opening.

In this embodiment, preferably, the housing 1 further includes a top limit frame bar (not shown), the top limit frame bar includes a connected top limit plate and a top connection plate, and the top connection plate is fitted and fixed on On the outer side of the top plate, the top limiting plate is opposite to the back plate 11. It can be understood that the setting of the top limit plate can help to increase the limiting force preventing the display module 2 from detaching from the housing 1 on the one hand, and can maintain the appearance consistency of the top and two sides of the front side of the housing 1 on the other hand. In addition, it should be noted that in this embodiment, the top limiting plate is indirectly connected to the top plate through the top connecting plate; and in other embodiments of the present invention, the top limiting plate can also be directly connected to the free space of the top plate. side edge.

In this embodiment, generally, the supporting frame 21 further includes a top frame bar 212 , and the two ends of the top frame bar 212 are respectively connected to the top ends of the two side frame bars 211 . It can be understood that the edges of the display screen 22 and the optical film set 23 are easy to be damaged, and the setting of the top frame bar 212 can better protect the edges of the display screen 22 and the optical film set 23 . The bottom of the supporting frame 21 is left open, so that the backlight light can enter from the bottom of the light guide plate 231 of the optical film set 23 . In this embodiment, preferably, the cross-sectional shape of the top frame bar 212 is consistent with the cross-sectional shape of the side frame bar 211. In this way, when the top frame bar 212 and the side frame bar 211 are prepared by extrusion molding, The top frame bar 212 and the side frame bar 211 can adopt the same extrusion mold, which reduces the cost of the mold and reduces the manufacturing cost.

Referring to FIG. 1 and FIG. 3 , further, the LCD TV further includes a sealing assembly 3 that closes the installation opening, so that the display module 2 is confined in the casing 1 . In this embodiment, a backlight light bar 4 is provided between the sealing assembly 3 and the bottom edge of the light guide plate 231. Of course, the front of the backlight light bar 4 faces the bottom edge of the light guide plate 231, so that the backlight light emitted by it enters the light guide plate 231 ; the back of the backlight strip 4 is attached to the sealing component 3 to dissipate heat through the sealing component 3 . It should be noted that, in the technical solution in which the bottom edge and the top edge of the back plate 11 are both empty, in order to prevent the display module 2 from being exposed from the decoration opening and affecting the appearance of the LCD TV, preferably, the LCD TV also It includes a top decorative part that closes the decorative opening, and the top decorative part can be a decorative film or a top decorative frame strip, as long as the decorative opening can be closed.

It should be noted that the present design is not limited thereto. In other embodiments, the support frame 21 can also be set to include a bottom frame strip and the top end is empty. At this time, the sealing assembly 3 passes through the bottom frame of the support frame 21. The backlight bar 4 can be arranged on the inner surface of the top plate of the housing 1, so that the backlight light emitted by it is incident from the top edge of the light guide plate 231. It can be understood that in this case, it is the backlight light bar 4. The power supply wire for supplying power from the bar 4 needs to extend to the top of the housing 1 .

In this embodiment, further, the sealing assembly 3 includes a light bar heat sink 31, and the light bar heat sink 31 includes a first heat dissipation plate 311 for attaching and installing the backside of the backlight light bar 4, and is connected to the first heat dissipation plate. The second cooling plate 312 on the side edge of 311, the second cooling plate 312 is attached and fixed on the back side of the back plate 11, so that the backlight light bar 4 can not only dissipate heat through the light bar heat sink 31, but also through the indirect backlight The board 11 dissipates heat, thereby obtaining higher heat dissipation efficiency.

Further, the sealing assembly 3 also includes a lower decorative frame 32, the lower decorative frame 32 includes a decorative bottom plate 321, and a decorative front side plate 322 and a decorative rear side plate 323 respectively arranged on opposite sides of the decorative bottom plate 321, wherein the decorative The rear side plate 323 is fitted and fixed on the outer surface of the second heat dissipation plate 312 to be indirectly fixed on the back plate 11; the decorative front side plate 322 is at least covered to the bottom edge of the display screen 22 to prevent the bottom edge of the display screen 22 from Components between the decorative base plates 321 are exposed outside. In this embodiment, since the display screen 22 is relatively heavy, in order to prevent the display screen 22 from sliding under the action of gravity, a screen support bar 5 arranged side by side with the backlight strip 4 is added between the decorative bottom plate 321 and the bottom edge of the display screen 22 .

In the present invention, in order to facilitate the disassembly and maintenance of the display module 2, the sealing assembly 3 is preferably detachably connected to the housing 1, and can be connected by but not limited to screw locking or snap connection. In this embodiment, specifically, the connections between the second heat dissipation plate 312 and the back plate 11 and between the decorative rear side plate 323 and the second heat dissipation plate 312 are all detachable connections.

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (14)

1. A liquid crystal television, characterized in that, comprising: The casing, the casing includes a back plate, two side plates respectively arranged on the opposite sides of the back plate, and two limit frame bars respectively corresponding to the two side plates, and the limit frame bars include connected A limiting part and a connecting part, the connecting part is fitted and fixed on the side plate, the limiting part is opposite to the back plate, so that the two limiting frame strips can be placed on the opposite sides of the back plate Each side defines a chute extending along the length direction of the side plate; A display module, the display module includes a support frame, a display screen and an optical film set fixed on the support frame; the frame bars on opposite sides of the support frame are respectively slidably installed to the two chute inside, so that the display module is installed in the housing; and An electric control module, the electric control module is arranged on the housing, and includes a main control board integrated with a TV signal processing module, and the main control board is electrically connected to the display screen. 2. The LCD TV according to claim 1, wherein the limiting portion is set as an integral plate-shaped member extending along the corresponding side of the back plate; or, the limiting portion is included in the The backboard corresponds to a plurality of plate-shaped pieces intermittently arranged in the extending direction of the sides. 3. The liquid crystal television set according to claim 1, wherein the connecting portion is set as an integral plate-like member extending along the corresponding side of the back panel, and is attached and fixed on the outer surface of the corresponding side panel side. 4. The liquid crystal television set according to claim 1, wherein the connecting portion is welded or glued to the corresponding side plate. 5. The liquid crystal television set according to claim 1, wherein the side frame strips include a substrate and a partition disposed on the inner side of the substrate, and the display screen and the optical film assembly are arranged on opposite sides of the partition. 6. The liquid crystal television set according to claim 5, wherein the side frame bar further comprises a limiting plate arranged on the inner surface of the substrate, and the limiting plate is spaced apart from the partition plate , the side of the display screen is located between the partition plate and the limiting plate. 7. The LCD TV according to claim 5, wherein the display screen and the optical film group are both fixed on the partition. 8. The liquid crystal television set according to claim 1, wherein the housing further comprises a top plate arranged on the top edge of the back plate, and the bottom edge of the back plate is left empty, so that An installation opening for the display module to be slid into and installed is formed between the lower ends of the boards; The display module slides into the casing from the installation opening until the top of the display module abuts against the top plate. 9. The liquid crystal television according to claim 8, wherein the top board and the back board are integrally formed; or, the top board is an independent part fixedly connected to the back board. 10. The liquid crystal television set as claimed in claim 1, wherein, the bottom edge and the top edge of the back plate are all vacant, so as to form an installation opening between the lower ends of the two described slide grooves, and between the two described slide grooves. A decoration opening is formed between the upper ends of the sliding slots; the display module slides into the housing from the installation opening or the decoration opening. 11. The LCD TV according to claim 10, characterized in that, the LCD TV further comprises a top decoration for closing the decoration opening. 12. The liquid crystal television set according to any one of claims 8 to 11, wherein the optical film set includes a light guide plate, and the bottom end of the support frame is empty; the liquid crystal television set also includes a closed The sealing assembly of the installation opening is provided, and a backlight strip is provided between the sealing assembly and the bottom edge of the light guide plate. 13. The liquid crystal television set according to claim 12, wherein the sealing assembly includes a light bar heat sink, and the light bar heat sink includes a first heat sink for attaching and installing on the back of the backlight light bar , and a second heat dissipation plate connected to one side edge of the first heat dissipation plate, the second heat dissipation plate is bonded and fixed on the back side of the back plate. 14. The liquid crystal television set according to claim 13, wherein the sealing assembly further comprises a lower decorative frame strip, and the lower decorative frame strip includes a decorative base plate and decorative panels arranged on opposite sides of the decorative base plate. The front side panel and the decorative rear side panel, a screen support bar arranged side by side with the backlight strip is provided between the decorative bottom panel and the bottom edge of the display screen, and the decorative rear side panel is attached and fixed on the On the outer side of the second heat dissipation plate, the decorative front side plate covers at least the bottom edge of the display screen.