Patent Application
20170184908
The present disclosure relates to the liquid crystal display technical field, and in particular, to a back plate of a liquid crystal display device and a liquid crystal display device having the same.
With the evolution of photoelectric and semiconductor technologies, the flourishing development of a flat panel display is driven, and in various flat panel displays, liquid crystal displays (LCDs) have become the mainstream of the market because of having various superior characteristics, such as high space utilization, low power consumption, no radiation and low electromagnetic interference or the like. Generally, a LCD device includes a back frame, a back light module (BLM), a liquid crystal panel and a front frame, wherein the back frame and the front frame are fixedly coupled to form an accommodating space, and the BLM and the liquid crystal panel are disposed opposite to each other and accommodated in the accommodating space. Furthermore, the back light module at least includes a back plate, and a light source, a reflective plate, a light guide plate and an optical film assembly disposed on the back plate.
In recent years, it is increasingly obvious that the LCD device tends to develop towards large size and lightening and thinning, and a design that the back plate in the back light module is exposed to the outside as a back frame of the entire device, i.e., an integration design, has become increasingly popular. In this situation, in order to improve the rigidity of the entire device so that it is not easily deformed, the back plate needs to be designed to have a larger thickness. The back plate having a larger thickness not only increases the cost, but also is disadvantageous to the lightening and thinning of the entire device.
Due to the disadvantages existing in the related art, the present disclosure provides a back plate of a LCD device having a smaller thickness and being able to satisfy its rigidity requirement, which is helpful for the lightening and thinning of the entire LCD device and cost reduction.
In order to achieve the above objectives, the present disclosure adopts the following technical solution:
A back plate of a LCD device includes a first region as an appearance of the entire LCD device, in which a plurality of first reinforcing ribs and a plurality of second reinforcing ribs crossing each other are disposed, wherein the plurality of first reinforcing ribs are arranged to be spaced apart from each other in a horizontal direction, and an angle α between the first reinforcing rib and a vertical direction ranges from 40° to 50°; the plurality of second reinforcing ribs are arranged to be spaced apart from each other in the horizontal direction, and an angle β between the second reinforcing rib and the vertical direction ranges from 40° to 50°; and each of the first reinforcing ribs at least crosses one of the second reinforcing ribs.
The plurality of first reinforcing ribs are parallel to each other; and the plurality of second reinforcing ribs are parallel to each other.
An angle γ between the first reinforcing rib and the second reinforcing rib ranges from 80° to 100°.
At least a portion of crossing parts between the first and second reinforcing ribs are of a “” shape or approximate to the “
” shape, wherein being of the “
” shape refers to a case where γ is equal to 90°, and being approximate to the “
” shape refers to a case where γ is not equal to 90°.
At least a portion of crossing parts between the first and second reinforcing ribs are of a “T” shape or approximate to the “T” shape, wherein being of the “T” shape refers to a case where γ is equal to 90°, and being approximate to the “T” shape refers to a case where γ is not equal to 90°.
At least a portion of crossing parts between the first and second reinforcing ribs are of a “L” shape or approximate to the “L” shape, wherein being of the “L” shape refers to a case where γ is equal to 90°, and being approximate to the “L” shape refers to a case where γ is not equal to 90°.
The numbers of the first reinforcing ribs and the second reinforcing ribs are three to five, respectively.
The back plate further includes a second region for accommodating circuit elements, with a cover for covering the circuit elements connected thereon.
The present disclosure further provides a LCD device including the back plate as described above, and a back light module and a liquid crystal panel sequentially disposed on the back plate, wherein the back light module includes a light source, a reflective plate, a light guide plate and an optical film assembly disposed on the back plate.
In comparison with the related art, embodiments of the present disclosure provide a back plate of a LCD device, wherein a plurality of first reinforcing ribs and a plurality of second reinforcing ribs crossing each other are disposed in a first region as an appearance of the entire LCD device and have crossing parts in a “” shape, “T” shape or “L” shape therebetween, so that the back plate has a smaller thickness and can satisfy its rigidity requirement, thereby being helpful for the lightening and thinning of the entire LCD device and cost reduction.
Hereinafter, the technical solutions in the embodiments of the present disclosure will be described in detail in conjunction with the accompanying drawings and the particular embodiments. Obviously, the described embodiments are only a part of the embodiments of the present disclosure rather than all the exemplary embodiments. Based on the embodiments of the present disclosure, all the other embodiments acquired by those of ordinary skill in the art without exerting any creative efforts fall within the protection scope of the present disclosure.
Referring to
As illustrated in
Specific to the present embodiment, the plurality of first reinforcing ribs 11 are parallel to each other; and the plurality of second reinforcing ribs 12 are also parallel to each other. The angle α is selected to be 45°, the angle β is also selected to be 45°, and at this time, the angle γ is 90°, that is to say, the first reinforcing ribs 11 and the second reinforcing ribs 12 are perpendicular to each other. Furthermore, as illustrated in ” shape, that is, if taking the crossing part 13a as a central point, the first reinforcing rib 11 extends toward both ends from the crossing part 13a, and the second reinforcing rib 12 also extends toward both ends from the crossing part 13a. In addition, if the values of the angles α and β are selected such that γ is unequal to 90°, the crossing part 13a between the first reinforcing rib 11 and the second reinforcing rib 12 is defined to be approximate to the “
” shape.
In the present embodiment, as illustrated in
By disposing the structure having the first and second reinforcing ribs as described above, the back plate has a smaller thickness and can satisfy its rigidity requirement, which is helpful for the lightening and thinning of the entire LCD device and cost reduction. In contrast, the back plate without the above reinforcing rib structure in the related art has a thickness that needs to be designed to be more than 1 mm. However, the back plate according to the present embodiment is provided with the first and second reinforcing ribs crossing in the “” shape, thus, its thickness may be designed to be 0.8 mm or less. Furthermore, when a deformation test is performed on the two kinds of back plates as described above under the same conditions, a deformation quantity of the back plate provided by the present embodiment is decreased by about 10%, which has a greater rigidity in comparison with the related art.
The present embodiment differs from embodiment 1 in that: as illustrated in ” shape as described in embodiment 1, while other crossing parts 13b are of a “T” shape.
Regarding the “T” shaped crossing, if taking the crossing part 13b as a central point, the first reinforcing rib 11 extends toward both ends from the crossing part 13b, while the second reinforcing rib 12 extends toward only one end from the crossing part 13b; or, the second reinforcing rib 12 extends toward both ends from the crossing part 13b, while the first reinforcing rib 11 extends toward only one end from the crossing part 13b; and at this time, the first reinforcing ribs 11 and the second reinforcing ribs 12 are perpendicular to each other. In addition, if the values of the angles are selected such that the first and second reinforcing ribs 11 and 12 are not perpendicular to each other, the crossing part 13b between the first reinforcing rib 11 and the second reinforcing rib 12 is defined to be approximate to the “T” shape.
In contrast, the back plate without the above reinforcing rib structure in the related art has a thickness that needs to be designed to be more than 1 mm. However, the back plate according to the present embodiment is provided with the first and second reinforcing ribs crossing in the “” shape and “T” shape, thus, its thickness may be designed to be 0.8 mm or less. Furthermore, when a deformation test is performed on the two kinds of back plates as described above under the same conditions, a deformation quantity of the back plate provided by the present embodiment is decreased by about 9%, which has a greater rigidity in comparison with the related art.
The present embodiment differs from embodiment 1 in that: as illustrated in ” shape as described in embodiment 1, while other crossing parts 13c are of a “L” shape.
Regarding the “L” shaped crossing, if taking the crossing part 13c as a central point, the first reinforcing rib 11 and the second reinforcing rib 12 extend toward only one end from the crossing part 13c respectively, and at this time, the first reinforcing ribs 11 and the second reinforcing ribs 12 are perpendicular to each other. In addition, if the values of the angles are selected such that the first and second reinforcing ribs 11 and 12 are not perpendicular to each other, the crossing part 13c between the first reinforcing rib 11 and the second reinforcing rib 12 is defined to be approximate to the “L” shape.
In contrast, the back plate without the above reinforcing rib structure in the related art has a thickness that needs to be designed to be more than 1 mm. However, the back plate according to the present embodiment is provided with the first and second reinforcing ribs crossing in the “” shape and “L” shape, thus, its thickness may be designed to be 0.8 mm or less. Furthermore, when a deformation test is performed on the two kinds of back plates as described above under the same conditions, a deformation quantity of the back plate provided by the present embodiment is decreased by about 8%, which has a greater rigidity in comparison with the related art.
In addition, as a variable structure, the present embodiment may design a portion of the crossing parts between the first reinforcing ribs 11 and the second reinforcing ribs 12 in the “” shape as the crossing parts 13a described in embodiment 1, another portion of the crossing parts in the “T” shape as the crossing parts 13b described in embodiment 2, and other crossing parts in the “L” shape as the crossing parts 13c, based on embodiment 2 in conjunction with
The present embodiment provides an integrated LCD device including the back plate 1, and a back light module 2 and a liquid crystal panel 3 sequentially disposed on the back plate 1, as illustrated in
As above, the embodiments of the present disclosure provide a back plate of a LCD device, wherein a plurality of first reinforcing ribs and a plurality of second reinforcing ribs crossing each other are disposed in a first region as an appearance of the entire LCD device and have crossing parts in the “” shape, “T” shape or “L” shape therebetween, so that the back plate has a smaller thickness and can satisfy its rigidity requirement, thereby being helpful for the lightening and thinning of the entire LCD device and cost reduction.
It should be explained that the relationship terms, such as first and second, etc., in the present text are only used for distinguishing one entity or operation from another entity or operation without requiring or implying any actual relation or sequence existing between these entities or operations. Moreover, the term “include”, “comprise” or any other variant thereof intends to cover non-exclusive inclusion, so that the process, method, object or apparatus including a series of factors not only includes those factors but also includes other factors that are not explicitly listed or inherent factors to this process, method, object or apparatus. Without any more limitations, the factors defined by the sentence “include one . . . ” do not exclude the presence of additional identical factors in the process, method, object or apparatus which includes the factors.
The above descriptions are only the particular embodiments of the present application, it should be noted that, to those of ordinary skill in the art, several improvements and polish may be made without deviating from the principle of the present application, and those improvements and polish should be considered as the protection scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510615877.6 | Sep 2015 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2015/092428 | 10/21/2015 | WO | 00 |
