CN114120838B - Support device, display device and display device backplane - Google Patents

Abstract

The invention discloses a supporting device, a display device and a display device backboard, wherein the supporting device is used for being matched with the display device backboard, a first optical element and a second optical element, and the display device backboard is provided with a first side wall. The supporting device comprises a fixing part, a supporting part and an elastic part. The fixing part is connected to the first side wall of the backboard of the display device. The supporting part comprises a positioning part and a hanging part. The positioning part is used for positioning the first optical element. The hanging part is used for hanging the second optical element, and the hanging part and the positioning part are staggered in the normal direction of the first side wall. The elastic part is connected with the fixing part and the supporting part. The display device comprises a display device backboard, a supporting device, a light source module, a first optical element and a second optical element. A portion of the side wall of the backboard of the display device extends to one side to form an elastic portion with a supporting portion.

Description

Support device, display device and display device backplane

Technical field

The invention relates to a support device, a display device and a display device backplane.

Background technique

Liquid crystal displays (LCDs) are widely used in various electronic products such as computers, televisions, and mobile phones. The backlight module is one of the important components of the LCD display. The films used in the backlight module include diffusion film (Diffuser), gain film (Brightness Enhancing Film) and polarizing film (Polarizing Film), etc., which directly affect the performance and assembly cost of the backlight module.

As shown in the prior art as shown in Figure 1A, the currently common backlight module assembly method is to provide a positioning post 10 on the back plate 50 adjacent to the upper side wall 51, and as shown in Figure 1B, on the diaphragm 70 with insufficient rigidity A hole 71 is provided to hang it on the positioning post 10 . On the other hand, a recess 61 may be provided on the top side of the light guide plate 60 to assist positioning.

However, due to manufacturing process limitations, the positioning post 10 must maintain a certain distance from the side wall of the backplane, which is not conducive to reducing the thickness of the frame. In addition, rivets and other components are commonly used in the installation of the positioning post 10 in conjunction with tapping manufacturing processes, which will increase parts and manufacturing costs. On the other hand, it is difficult to reduce the space reserved for expansion of the diaphragm and the light guide plate.

Contents of the invention

The object of the present invention is to provide a support device that can reduce manufacturing costs and reduce the thickness of the display device frame.

Another object of the present invention is to provide a display device that can reduce manufacturing costs and reduce frame thickness.

Another object of the present invention is to provide a display device backplane that can reduce manufacturing costs and reduce the thickness of the display device frame.

The support device of the present invention is used in conjunction with a display device backplane, a first optical element and a second optical element, wherein the display device backplane has a first side wall. The support device includes a fixed part, a supporting part, and an elastic part. The fixing part is connected to the first side wall of the back panel of the display device. The support part includes a positioning part and a hanging part. The positioning part is used for positioning the first optical element. The hanging part is used for hanging the second optical element, and the hanging part and the positioning part are misaligned in the normal direction of the first side wall. The elastic part connects the fixing part and the supporting part.

The display device of the present invention includes a display device backplane, the above-mentioned supporting device, a light source module, a first optical element, and a second optical element. The display device backplane has a first side wall and a second side wall located on opposite sides. The fixed part of the supporting device is connected to the first side wall, so that the supporting part faces the second side wall. The light source module is disposed on a side of the second side wall facing the first side wall. The first optical element is disposed between the supporting device and the light source module. The top edge and the bottom edge of the first optical element are respectively in contact with the positioning part and the light source module. The second optical element is located on the other side of the first optical element relative to the backplane, and is suspended from the hanging portion when the display device is upright with the first side wall positioned above.

The display device backplane of the present invention is used in conjunction with the first optical element and the second optical element. The part of the side wall of the display device backplane extends to one side to form an elastic part. One end of the elastic part has a support part, and the support part includes a positioning part. The positioning part of the first optical element and the hanging part for hanging the second optical element and offset from the positioning part in the normal direction of the side wall.

Description of drawings

Figures 1A and 1B are schematic diagrams of the prior art;

Figure 2A is a schematic diagram of an embodiment of a display device according to the present invention;

Figures 2B and 2C are schematic diagrams of embodiments of the support device of the present invention;

Figures 3A and 3B are schematic diagrams of an embodiment of the present invention in which the support device is provided on the first side wall;

Figure 4 is a schematic diagram of an embodiment of the support device for positioning the first optical element and suspending the second optical element according to the present invention;

Figures 5A and 5B are schematic diagrams of different embodiments of the support device provided on the third side wall of the present invention;

Figures 6A to 6C are schematic diagrams of different embodiments of the support device of the present invention;

FIG. 6D is a schematic diagram of the backplane of the display device according to an embodiment of the present invention.

Symbol Description

100...fixed part

200...support part

210...Positioning Department

211...Location recess

212...back wall

212a...upper end

212b...lower end

213...Upper clamping plate

214...lower clamping plate

220...Hanging part

221...suspended recess

222...bent plate

222a...connection end

222b...free end

300...flexible part

400...Light source module

500...display device backplane

510...First side wall

510’…side wall

511...jack

520...Second side wall

530...Third side wall

600...first optical element

610...top edge

620...bottom

630...Side

700...Second optical element

800’...Support

800...Support device

900...display device

Detailed ways

The implementation of the connection assembly disclosed in the present invention is described below through specific embodiments and accompanying drawings. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. However, the following disclosure is not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, those skilled in the art can implement the present invention in other different embodiments based on different viewpoints and applications. In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout this specification, the same reference numbers refer to the same elements. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and/or electrical connection. Furthermore, "electrical connection" or "coupling" can mean the presence of other components between two components.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, and/or /or parts shall not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "section" discussed below could be termed a second element, component, region, layer or section without departing from the teachings herein.

Additionally, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation illustrated in the figures. For example, if the device in one of the figures is turned over, elements described as "lower" than other elements would then be oriented "upper" than the other elements. Thus, the exemplary term "lower" may include both "lower" and "upper" orientations, depending on the particular orientation of the drawing. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "lower" may include both superior and inferior orientations.

As used herein, "about," "approximately," or "substantially" includes the stated value and the average within an acceptable range of deviations from the particular value as determined by one of ordinary skill in the art, taking into account the measurements in question and the A specific amount of error associated with a measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, "about", "approximately" or "substantially" used in this article can be used to select a more acceptable deviation range or standard deviation based on optical properties, etching properties or other properties, and one standard deviation does not apply to all properties. .

As shown in the embodiment of FIG. 2A , the support device 800 of the present invention is used in conjunction with the display device backplane 500 , the first optical element 600 and the second optical element 700 , wherein the display device backplane 500 has a first side wall 510 . Furthermore, the display device backplane 500, the supporting device 800, the light source module 400, the first optical element 600, the second optical element 700 and other components together constitute the display device 900 of the present invention. In one embodiment, the first optical element 600 is a light guide plate, and the second optical element 700 is a film. When the display device 900 is used upright, such as being placed on a desktop or wall-mounted, the first side wall 510 is located above (also called the sky side), and the supporting device 800 is used to position the first optical element 600 and the ceiling. Hang the second optical element 700. The second optical element 700 can be of a plurality of different functional types, such as a diffusion second optical element, a gain second optical element, a polarization second optical element, an anti-reflection second optical element, an anti-glare second optical element, etc.

As shown in the embodiment shown in FIGS. 2A to 2C , the supporting device 800 includes a fixing part 100 , a supporting part 200 , and an elastic part 300 . The fixing part 100 is connected to the first side wall 510 of the display device back panel 500 . 3A and 3B, the first side wall 510 has an insertion hole 511, and the fixing part 100 can be inserted into the insertion hole 511. In one embodiment, the hardness of the fixing part 100 is smaller than the hardness of the first side wall 510 , which facilitates assembling the fixing part 100 into the socket 511 . In addition, the fixing part 100 may have a non-circular outer contour, and the shape of the socket 511 corresponds to the non-circular outer contour, so as to facilitate the alignment effect and reduce support when the fixing part 100 is assembled into the socket 511. The rotation of the device 800 causes the positioning and hanging of the first optical element 600 and the hanging second optical element 700 to shift. On the other hand, since the support part 200 is directly assembled into the socket 511 through the fixing part 100, the manufacturing process is relatively simple and economical, and the manufacturing cost can be reduced.

As shown in the embodiment of FIG. 4 , the support part 200 includes a positioning part 210 and a hanging part 220 . The positioning part 210 is used to position the first optical element 600, and the hanging part 220 is used to hang the second optical element 700. The hanging part 220 and the positioning part 210 are misaligned in the normal direction of the first side wall 510. In other words, the hanging part 220 and the positioning part 210 are arranged in such a manner that the positioned first optical element 600 and the hung second optical element 700 are located on different planes without substantially interfering with each other. More specifically, the positioning part 210 has a positioning recess 211, the hanging part 220 has a hanging recess 221, and the opening of the positioning recess 211 and the opening of the hanging recess 221 face opposite directions. The direction in which the fixing part 100 faces is the same as the direction in which the hanging recess 221 faces.

As shown in the embodiment of FIG. 2A , the display device backplane 500 has a first side wall 510 and a second side wall 520 located on opposite sides. The fixing part 100 of the supporting device 800 is connected to the first side wall 510 so that the supporting part 200 faces the second side wall 520 . The light source module 400 is disposed on a side of the second side wall 520 facing the first side wall 510 . The first optical element 600 is disposed between the supporting device 800 and the light source module 400. The top edge 610 and the bottom edge 620 of the first optical element 600 are in contact with the positioning part 210 and the light source module 400 respectively. The positioning portion 210 essentially forms a clamp and can clamp the top edge 610 of the first optical element 600 . The positioning recess 211 is the clamping space of the clamp.

More specifically, in the embodiment shown in FIG. 2B and FIG. 2C , the positioning part 210 includes a back wall 212 , an upper clamping plate 213 , and a lower clamping plate 214 . The back wall 212 has an upper end 212a and a lower end 212b. The upper clamping plate 213 is connected to the upper end 212a and is upright relative to the back wall 212. The lower clamping plate 214 is connected to the lower end 212b and is upright relative to the back wall 212 . The upper clamping plate 213 and the lower clamping plate 214 are opposite, and together with the back wall 212, they form a positioning recess 211; the elastic part 300 is connected to the side of the back wall 212 opposite to the positioning recess 211. The hanging part 220 includes a bending plate 222, and the bending plate 222 has an opposite connecting end 222a and a free end 222b. The connecting end 222a is connected to the upper clamping plate 213, and the free end 222b extends in a direction opposite to the direction in which the upper clamping plate 213 protrudes from the back wall 212. The bending plate 222 and the upper clamping plate 213 together form a hanging recess 221. In one embodiment, there is a considerable distance between the upper clamping plate 213 and the lower clamping plate 214 to accommodate the first optical element such as a light guide plate, and the distance may be greater than the distance between the free end 222b and the upper clamping plate 213 .

In the embodiment shown in FIG. 2B and FIG. 2C , the depth of the recess of the positioning recess 211 is deeper to perform a better clamping function, and its depth may be greater than the depth of the recess of the hanging recess 221 . However, in different embodiments, the positioning recess 211 is a shallow recess, which only allows the top edge 610 of the first optical element 600 to be slightly engaged to limit its deflection, that is, the positioning part 210 may not have a clamping function. Alternatively, the positioning portion 210 may not have a concave portion, and only achieves the positioning effect by contacting the top edge 610 of the first optical element 600 . The second optical element 700 is located on the other side of the first optical element 600 relative to the back plate 500 and is suspended from the hanging portion 220 when the display device 900 is upright with the first side wall 510 positioned above.

As shown in the embodiment shown in FIGS. 2A to 2C , the elastic part 300 connects the fixing part 100 and the supporting part 200 . The elastic part 300 can be an elastic arm or an elastic body, that is, it can generate an elastic force when the support part 200 is displaced relative to the fixed part 100 based on the mechanical structure or material characteristics, and maintain the positioning part 210 of the support part 200 and the positioning first optical The components 600 are in contact to maintain the positioning effect. Accordingly, through the support device 800 of the present invention, the effect of positioning the first optical element 600 and hanging the second optical element 700 can be achieved at the same time without providing a hook at the bottom of the backplane, thereby reducing manufacturing costs. In addition, since there is no restriction on the distance between the hook and the side wall when arranging the hook at the bottom of the backplane, the thickness of the frame of the display device can be further reduced. On the other hand, in the embodiment shown in FIG. 2A , when the temperature of the display device 900 rises due to factors such as use, although both the first optical element 600 and the second optical element 700 may expand and increase in length, Because when the first optical element 600 expands and pushes the support part 200 to move to the first side wall 510, the suspended second optical element 700 will also move to the first side wall 510 with the support part 200, so the second optical element can be moved to the first side wall 510. The distance between the second optical element 700 and the second side wall 520 is increased, thereby further reducing the chance that the bottom edge of the second optical element 700 contacts the second side wall 520 or the frame due to expansion. Viewed from different angles, the support device 800 of the present invention can reduce the space reserved for the expansion of the second optical element 700 and increase design flexibility.

As shown in the embodiment of FIG. 5A , the display device backplane 500 further includes a third side wall 530 located between the first side wall 510 (see FIG. 2 ) and the second side wall 520 , and the display device 900 further includes a supporting device 800 ′. , the fixing part 100 of the support device 800' is connected to the third side wall 530, so that the support part 200 is located inside the third side wall 530, and the side 630 of the first optical element 600 is in contact with the positioning part 200 of the support device 800' . Furthermore, in this embodiment, the supporting device 800′ is not used to hang the second optical element 700, but is used to assist the positioning of the first optical element 600 relative to the third side wall 530. In other words, in addition to being disposed on the upper side wall for hanging the second optical element and positioning the first optical element up and down, the same supporting device can also be disposed on the side wall for positioning the first optical element left and right. On the other hand, in different embodiments as shown in FIG. 5B , the second optical element 700 can also be attached to the supporting device 800 (see FIG. 2 ) provided on the first side wall 510 and the third side wall 530 at the same time. The hanging part 220 of the supporting part 200 of the supporting device 800'. Thereby, when the display device 900 is further rotated so that the third side wall 530 is located upward (for example, the horizontal display is changed to a vertical display), the second optical element 700 can be hung on the hanging portion 220 of the supporting device 800', and will not Loss of support.

In the embodiment shown in FIG. 2B , the support device 800 includes two support parts 200 . The fixing part 100 is located between the two support parts 200 to improve the clamping effect and stability of the first optical element 600 . The elastic part 300 is formed into an arched elastic piece, and the supporting parts 200 are respectively located at both ends of the arched elastic piece. However, in different embodiments, adjustments may be made based on usage, manufacturing, design and other considerations. As shown in the embodiment shown in FIG. 6A , the support device 800 has only one support part 200 , which has the advantages of reducing space and making it convenient to hang the second optical element and position the first optical element. As shown in the embodiment shown in FIG. 6B , the outer contour of the fixing part 100 is circular and does not have a preset lock hole. It can be directly locked with self-tapping screws or adhered to the side wall with adhesive, which has the advantages of reducing parts cost and Advantages of easy assembly. As shown in the embodiment shown in FIG. 6C , elastic polymers or springs can be used instead of elastic arms, which has the advantages of reducing space and facilitating assembly. In one embodiment, the supporting device may be further integrally formed by the side wall of the back panel of the display device. As shown in the embodiment shown in FIG. 6D , the side wall 510' of the display device backplane 500 extends to one side to form an elastic part 300. One end of the elastic part 300 has a support part 200. The support part 200 includes a first optical element for positioning. 600 (see FIG. 2 ) and a hanging part 220 for hanging the second optical element 700 (see FIG. 2 ) and offset from the positioning part 210 in the normal direction of the side wall 510 ′.

The present invention has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples of implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the claims are included in the scope of the present invention.

Claims (16)

1. A supporting device for use with a display device backplane, a first optical element and a second optical element, wherein the display device backplane has a first side wall, and the supporting device includes: The fixing part is connected to the first side wall of the back panel of the display device; Support part, including: a positioning portion for positioning the first optical element; and A hanging part for hanging the second optical element, the hanging part and the positioning part are misaligned in the normal direction of the first side wall; and The elastic part connects the fixed part and the supporting part. 2. The support device according to claim 1, wherein the positioning part has a positioning recess, the hanging part has a hanging recess, and the opening of the positioning recess and the opening of the hanging recess face in opposite directions. 3. The supporting device as claimed in claim 2, wherein the fixing portion faces in the same direction as the hanging recessed portion. 4. The support device according to claim 2, wherein the depth of the recess of the positioning recess is greater than the depth of the recess of the hanging recess. 5. The support device as claimed in claim 2, wherein the positioning portion comprises: Dorsal wall, with upper and lower ends; An upper clamping plate is connected to the upper end and is upright relative to the back wall; and A lower clamping plate is connected to the lower end and is upright relative to the back wall; The upper clamping plate and the lower clamping plate are opposite, and the two and the back wall together form the positioning recess; the elastic part is connected to the side of the back wall opposite to the positioning recess. 6. The support device of claim 5, wherein the hanging part includes a bending plate, the bending plate has an opposite connecting end and a free end, the connecting end is connected to the upper clamping plate, and the free end faces The upper clamping plate extends in a direction opposite to the direction in which the back wall extends, and the bending plate and the upper clamping plate together form the hanging recess. 7. The support device as claimed in claim 6, wherein the distance between the upper clamping plate and the lower clamping plate is greater than the distance between the free end and the upper clamping plate. 8. The supporting device as claimed in claim 1, comprising two supporting parts, wherein the fixing part is located between the two supporting parts. 9. The support device as claimed in claim 8, wherein the elastic part is formed as an arched elastic piece, and the supporting parts are respectively located at both ends of the arched elastic piece. 10. The support device as claimed in claim 1, the first side wall has an insertion hole, and the fixing part can be inserted into the insertion hole, wherein the hardness of the fixing part is smaller than the hardness of the first side wall. 11. The support device of claim 10, wherein the fixing portion has a non-circular outer contour, and the shape of the socket corresponds to the non-circular outer contour. 12. A display device, comprising: The display device backplane has a first side wall and a second side wall located on opposite sides; The support device according to any one of claims 1 to 11, wherein the fixing part is connected to the first side wall so that the support part faces the second side wall; A light source module is disposed on the side of the second side wall facing the first side wall; The first optical element is disposed between the support device and the light source module, and the top edge and bottom edge of the first optical element are respectively in contact with the positioning part and the light source module; and The second optical element is located on the other side of the first optical element relative to the backplane, and is suspended from the hanging portion when the display device is upright with the first side wall located above. 13. The display device of claim 12, wherein the display device backplane further includes a third side wall located between the first side wall and the second side wall, the display device further includes another supporting device, the The fixing part of the other supporting device is connected to the third side wall, so that the supporting part is located inside the third side wall, and the side of the first optical element is in contact with the positioning part of the other supporting device. 14. The display device of claim 13, wherein when the display device is further rotated so that the third side wall is located upward, the second optical element is suspended from the hanging portion of the other supporting device. 15. The display device of claim 12, wherein when the temperature of the display device increases, the first optical element expands and pushes the support portion to move toward the first side wall, driving the suspended second optical element toward the first side wall. The first side wall moves. 16. A display device backplane for use with the first optical element and the second optical element. A portion of the side wall of the display device backplane extends to one side to form an elastic portion, and one end of the elastic portion has a support portion. The support includes: a positioning portion for positioning the first optical element; and The hanging part is used for hanging the second optical element, and the hanging part is misaligned with the positioning part.