TWI483044B - Supporting device for supporting a light guide plate, a backlight module, a display module, and a display device using the same - Google Patents

Description

Support member for supporting light guide plate, and backlight module, display module and display device using the same

The present invention relates to a support member for supporting a light guide plate, and a backlight module, a display module and a display device using the same; in particular, the present invention relates to a light guide plate for supporting a liquid crystal display. A support member, and a liquid crystal display backlight module, a liquid crystal display display module and a liquid crystal display made using the support member.

Due to the thin thickness, light weight and portability of liquid crystal displays (LCD displays), the advantages of low-radiation compared to CRT displays have led to a rapid increase in demand in recent years.

Figure 1 shows a schematic diagram of a conventional liquid crystal display. As shown in FIG. 1, the display 80 includes a light guide plate 90, a support member 20, a back plate 61 surrounding the support member 20, and a case 81 surrounding the back plate member 61. The light guide plate 90 in the display 80 is supported by the support surface 11 of the support member 20, and the light guide plate 90 has a light-incident light-incident end surface 91. The light source 41 is disposed on the support surface 11 and faces the light-incident side end surface 91 of the light guide plate 90. Wherein, the support member 20, the back plate 61, and the rear case 81 are locked by the screw 28, and the screw 28 is prone to chipping when being locked, which may cause poor quality of the display area after assembly or short circuit of the circuit. .

On the other hand, with the size requirements of the final product, the display also needs to be adjusted in terms of specifications. For example, in terms of design and overall volume reduction, the distance between the light-incident side end surface 91 and the outer side of the rear case 81 has been increasingly reduced. Therefore, the prior art has an LED light strip having a substrate 42 as the light source 41 as shown in FIG. However, in the prior art, the light source 41 is fixed to the support surface 11 only by one side of the substrate 42, and the fixing effect has an improved space.

An object of the present invention is to provide a support member for supporting a light guide plate, which can reduce the problem of debris generated when the screw is locked.

Another object of the present invention is to provide a support for supporting a light guide plate, which has a better light source fixing effect.

Another object of the present invention is to provide a backlight module for use with a backboard, which can reduce the problem of debris generated when the screw is locked.

Another object of the present invention is to provide a backlight module for use with a backplane, which has a better light source fixing effect.

Another object of the present invention is to provide a display module and a display device, which can reduce the problem of debris generated when the screws are locked, and have a better light source fixing effect.

The support of the present invention comprises a support plate and a fixing portion. The support plate has a support surface to support the light guide plate. The fixing portion is formed by one side of the light guide plate extending in a direction opposite to the direction of the support surface, wherein the fixing portion has a wall body and a bent portion, and the bent portion and the support plate are spaced apart from each other.

The support member further includes a light source setting portion formed by extending a side edge of the light guide plate in a direction facing the support surface. The support member further includes a panel supporting portion formed by extending from the upper edge of the light source setting portion toward the light guide plate for supporting the panel module. The support member is formed by extrusion of aluminum.

The backlight module of the present invention comprises the aforementioned support member including a light source setting portion, a light source, and a light guide plate. The light source is disposed in the light source setting portion. The light guide plate is disposed on the support surface, and the light guide plate has a light incident side end surface facing the light source.

The wall, the bent portion, and the support plate can collectively form a space. The wall, the bent portion, the backing plate, and the support plate can collectively form a space. The back plate has an inner surface of the back plate, and the inner surface of the back plate is coplanar with the support surface to jointly support the light guide plate. The end edge of the backing plate extends to the other side of the support plate relative to the support surface. The back plate and the support member are screwed, and the screw is inserted from the back plate to the back plate and penetrates the support plate with respect to the other side of the support member.

The display module of the present invention comprises a backboard, the foregoing backlight module, a panel module, and a front frame. The panel module is disposed above the light guide plate. The front frame surrounds the panel module, and the front frame includes the inner wall of the front frame and the front panel. The inner wall surface of the front frame faces the light-incident side end surface. The front panel extends from the end of the inner wall of the front frame away from the support surface toward the center of the panel module; wherein the front frame and the support member are screwed, and the screw is threaded from the front frame to the other side of the light-incident side end surface. In the front frame and the fixed part, and penetrate the interval.

The display device of the present invention comprises the aforementioned display module and rear case. The rear shell surrounds the display module, and the rear shell includes the inner wall surface of the rear shell and the rear shell. The inner wall surface of the rear case faces the light-incident side end surface. The rear shell plate extends from the inner wall surface of the rear shell away from the end of the panel module toward the center of the display module; wherein the rear shell and the support member are screwed, and the screw is from the rear shell relative to the other side of the display module It is worn through the rear case and the fixed part, and penetrates into the space.

The backing plate may extend along the bent portion to the other side of the wall body relative to the light guide plate. The back plate and the support member are screwed, and the screw is disposed on the back plate and the fixing portion from the other side of the back plate with respect to the support member, and penetrates into the space. The display module of the present invention comprises a backboard, the foregoing backlight module, a panel module, and a front frame. The panel module is disposed above the light guide plate. The front frame surrounds the panel module, and the front frame includes the inner wall of the front frame and the front panel. The inner wall surface of the front frame faces the light-incident side end surface. The front panel extends from the end of the inner wall of the front frame away from the support surface toward the center of the panel module; wherein the front frame and the support member are screwed, and the screw is threaded from the front frame to the other side of the light-incident side end surface. In the front frame and the fixed part, and penetrate the interval.

The display device of the present invention comprises the aforementioned display module and rear case. The rear shell surrounds the display module, and the rear shell includes the inner wall surface of the rear shell and the rear shell. The inner wall surface of the rear case faces the light-incident side end surface. The rear shell plate extends from the inner wall surface of the rear shell away from the end of the panel module toward the center of the display module; wherein the rear shell, the back panel and the support member are screwed, and the screw is fixed from the rear shell relative to the display module One side is disposed on the rear case, the back plate, and the fixing portion, and is inserted into the space.

The display device further includes a front cover surrounding the display module, and has an inner wall surface of the front case facing the light-incident side end surface and an end of the front shell plate away from the back plate support surface from the front cover inner wall surface toward the center of the display module.

The invention provides a support member for supporting a light guide plate, and a backlight module, a display module and a display device which are prepared by using the support member. In a preferred embodiment, the display device is a liquid crystal display; however, in various embodiments, the display device can be other displays having a backlight module.

As shown in the embodiment of FIG. 2, the support member 200 of the present invention includes a support plate 100 and a fixing portion 300. The support members 200 are preferably distributed along the sides of the light guide plate 900. The support plate 100 has a support surface 110 that supports the light guide plate 900. The fixing portion 300 is formed by a side of the supporting plate 100 extending in a direction 992 opposite to the direction 991 of the supporting surface 110. The fixing portion 300 has a wall body 310 and a bending portion 330. The bending portion 330 and the supporting plate 100 have a gap between the bending portion 330 and the supporting plate 100. Interval D. Specifically, the light guide plate 900 is supported on the support surface 110 of the support plate 100. The support surface 110 faces the direction 991. The fixing portion 300 extends in the direction 992 and forms a wall on the other side of the support plate 100 relative to the support surface 110. 310 and the bent portion 330 form a space D between the bent portion 330 and the support plate 100. In other words, the interval D and the light guide plate 900 correspond to opposite sides of the support plate 100, respectively. When the support member 200 has a requirement to be locked with other members by a fixing member (preferably a screw), the screw 281 can be locked to the fixing portion 300, and the tip end of the screw 281 can penetrate the space D. Thereby, the debris generated when the screw is locked can be dropped on the side of the space D of the support plate 100 instead of the side of the light guide plate 900, thereby reducing the problem that the display area after assembly is poor in quality or short circuit of the circuit.

As shown in the preferred embodiment of FIG. 3, the support member 200 further includes a light source setting portion 500 formed by a side edge of the support plate 100 extending toward the support surface 110 in a direction 991, and the light source 410 is disposed thereon. Further, the support member 200 including the light source setting portion 500 can form the backlight module 400 of the present invention together with the light source 410 and the light guide plate 900, and can be used in combination with the back plate 610. The light guide plate 900 is disposed on the support surface 110, and the light guide plate 900 has a light incident side end surface 901 facing the light source 410. In the preferred embodiment, the light source 410 is an LED light-emitting strip of the substrate 411. The light source 410 is fixed to the support surface by one side of the substrate in the prior art. The bottom surface is attached and fixed to the light source setting portion 500, and the fixed area is large, so that a better fixing effect can be obtained.

In the preferred embodiment shown in FIG. 3, the support member 200 further includes a panel support portion 700 extending from the upper edge of the light source setting portion 500 toward the light guide plate 900 for supporting the panel module 620. The panel supporting portion 700 not only can be used to support the panel module 620, but also has a function of preventing light leakage from the light source 410. In the preferred embodiment, the support member 200 is integrally formed by extrusion of aluminum, however, in various embodiments, the support member 200 can be formed by, for example, bending, welding, or the like.

As described above, the spacing D and the light guide plate 900 respectively correspond to opposite sides of the support plate 100. When the support member 200 has a requirement of screwing with other components, the screw 281 can be locked to the fixing portion 300, and the screw 281 The tip can penetrate into the gap D. Further, the interval D may be formed into a space to accommodate debris generated when the locking screw is attached. As shown in the preferred embodiment of FIG. 3, the wall 310, the bend 330, and the support plate 100 can collectively form a space 292. The space 292 is preferably closed, and the debris generated when the screws are locked is moved to the side of the light guide plate 900. The space 292 is not limited by the wall body 310, the bending portion 330 and the support plate 100. As shown in different embodiments of FIG. 4, the space 292 can be shared by the wall body 310, the bending portion 330, the back plate 610 and the support plate 100. form. Specifically, in the embodiment shown in FIG. 4, the wall body 310, the bending portion 330 and the support plate 100 form a notch, and the back plate 610 extends from the bottom side of the support plate 100 to the bottom side of the fixing portion 300, and supports the support. Piece 200 and close the gap.

As shown in the preferred embodiment of FIG. 3, the backplane 610 has a backplane inner surface 611, and the backplane inner surface 611 is coplanar with the support surface 110 to collectively support the light guide panel 900. The end edge of the backing plate 610 extends to the other side of the support plate 100 relative to the support surface 110. The back plate 610 and the support member 200 are locked by screws 282. The screws 282 are disposed on the back plate 610 from the other side of the back plate 610 with respect to the support member 200 and penetrate the support plate 100. Further, in the preferred embodiment, the backing plate 610 overlaps only with the portion of the support member 200 that is locked by the screws 282, and the support member 200 is mostly not covered by the backing plate 610. Thereby, the material cost of the backboard 610 and the space required for the setting can be saved. On the other hand, the thickness of the overlapping portion of the support member 200 and the backing plate 610 (i.e., the support plate 100) can be thickened to facilitate the locking of the screw 282.

As shown in FIG. 5, the backlight module 400 shown in FIG. 3 can be combined with the backplane 610, the panel module 620, and the front frame 630 to form the display module 600. The panel module 620 is disposed above the light guide plate 900. The front frame 630 surrounds the panel module 620, and the front frame 630 includes a front frame inner wall surface 631 and a front plate 632. The front frame inner wall surface 631 faces the light incident side end surface 901. The front plate 632 extends from the end of the front frame inner wall surface 631 away from the support surface 110 toward the center of the panel module 620. The front frame 630 and the support member 200 are locked by screws 281, and the screw 281 is opposite to the light from the front frame 630. The other side of the side end surface 901 is disposed through the front frame 630 and the fixing portion 300 and penetrates the space D (in the preferred embodiment, the space 292).

As shown in the preferred embodiment of FIG. 6, the display module 600 shown in FIG. 5 can be combined with the rear case 810 to form the display device 800. The rear case 810 surrounds the display module 600, and the rear case 810 includes a rear case inner wall surface 811 and a rear case plate 813. The rear case inner wall surface 811 faces the light incident side end surface 901. The rear shell plate 813 extends from the end of the inner wall surface 811 of the rear shell away from the panel module 620 toward the center of the display module 600; wherein the rear shell 810 and the support member 200 are locked by screws 283, and the screws 283 are from the rear shell 810. The other side of the display module 600 is disposed through the rear case 810 and the fixing portion 300 and penetrates the interval D. The display device 800 further includes a front case 820 surrounding the display module 600 and having a front case inner wall surface 821 facing the light-incident side end surface 901 and a front cover plate 822 extending from the front cover inner wall surface 821 away from the back plate support surface 110. The center of the module 600 extends.

In various embodiments as shown in FIG. 7, the backing plate 610 can extend along the bent portion 330 to the other side of the wall 310 relative to the light guide plate 900. The back plate 610 and the support member 200 are locked by screws 281 and 283. The screws 281 and 283 are disposed on the back plate 610 and the fixing portion 300 from the other side of the back plate 610 with respect to the support member 200, and penetrate the space D. Since the back plate 610 substantially covers and supports the support member 200, and the back plate 610 and the support member 200 are commonly locked by the screws 281 and 283, the fixing effect between the back plate 610 and the support member 200 can be improved.

As shown in FIG. 8 , the backlight module 400 shown in FIG. 7 can be combined with the back panel 610 , the panel module 620 , and the front frame 630 to form the display module 600 . The panel module 620 is disposed above the light guide plate 900. The front frame 630 surrounds the panel module 620, and the front frame 630 includes a front frame inner wall surface 631 and a front plate 632. The front frame inner wall surface 631 faces the light incident side end surface 901. The front plate 632 extends from the end of the front frame inner wall surface 631 away from the support surface 110 toward the center of the panel module 620; wherein the front frame 630 and the support member 200 are locked by screws 281 and 283, and the screws 281 and 283 are from the front frame 630. The other side of the light-incident side end surface 901 is inserted through the front frame 630 and the fixing portion 300 and penetrates the interval D.

As shown in different embodiments of FIG. 9, the display module 600 shown in FIG. 8 can be combined with the rear case 810 to form the display device 800. The rear case 810 surrounds the display module 600, and the rear case 810 includes a rear case inner wall surface 811 and a rear case plate 813. The rear case inner wall surface 811 faces the light incident side end surface 901. The rear shell plate 813 extends from the end of the inner wall surface 811 of the rear shell away from the panel module 620 toward the center of the display module 600. The rear shell 810, the back plate 610 and the support member 200 are locked by screws 281 and 283, and the screws are fixed. 281 and 283 are disposed on the other side of the rear cover 810 with respect to the display module 600 through the rear case 810, the back plate 610, and the fixing portion 300, and penetrate the interval D. Since the screws 281 and 283 are simultaneously provided to the rear case 810, the front frame 630, and the support member 200, the fixing effect between the rear case 810, the front frame 630, and the support member 200 can be further improved.

The present invention has been described by the above-described related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, modifications and equivalents of the spirit and scope of the invention are included in the scope of the invention.

11. . . Support surface

20. . . supporting item

28‧‧‧ screws

41‧‧‧Light source

42‧‧‧Substrate

61‧‧‧ Backplane

80‧‧‧ display

81‧‧‧back shell

90‧‧‧Light guide plate

91‧‧‧Incoming light side end face

100‧‧‧support plate

110‧‧‧Support surface

200‧‧‧Support

281‧‧‧ screws

282‧‧‧ screws

283‧‧‧ screws

D‧‧‧ interval

292‧‧‧ Space

300‧‧‧Fixed Department

310‧‧‧ wall

330‧‧‧Bends

400‧‧‧Backlight module

410‧‧‧Light source

411‧‧‧Substrate

500‧‧‧Light source setting department

600‧‧‧ display module

610‧‧‧ Backplane

611‧‧‧ Inside the back panel

620‧‧‧ panel module

630‧‧‧ front box

631‧‧‧ front wall

632‧‧‧ front board

700‧‧‧Face support

800‧‧‧ display device

810‧‧‧back shell

811‧‧‧back shell inner wall

813‧‧‧back shell

820‧‧‧ front shell

821‧‧‧ front shell inner wall

822‧‧‧ front shell

900‧‧‧Light guide plate

901‧‧‧light side end face

991‧‧‧ Direction

992‧‧‧ Direction

1 is a schematic cross-sectional view of a conventional display device;

2 is a schematic view of an embodiment of a support member of the present invention;

Figure 3 is a schematic view of a preferred embodiment of the support member of the present invention;

Figure 4 is a schematic view showing different embodiments of the support member of the present invention;

5 is a schematic view of a preferred embodiment of a display module of the present invention;

6 is a schematic view of a preferred embodiment of a display device of the present invention;

7 is a schematic view showing an embodiment of the back plate extending along the bent portion to the other side of the wall body relative to the light guide plate according to the present invention;

8 is a schematic diagram of different embodiments of a display module of the present invention;

Figure 9 is a schematic illustration of different embodiments of a display device of the present invention.

110. . . Support surface

200. . . supporting item

283. . . Screw

D. . . interval

300. . . Fixed part

600. . . Display module

610. . . Backplane

620. . . Panel module

800. . . Display device

810. . . Back shell

811. . . Inner wall of the rear shell

813. . . Back shell

820. . . Front shell

821. . . Front shell inner wall

900. . . Light guide

901. . . Light entrance side end face

Claims (17)

A support member for supporting a light guide plate, the support member comprising: a support plate having a support surface for supporting the light guide plate; and a fixing portion, wherein a side edge of the support plate faces the support surface And extending in a direction, wherein the fixing portion has a wall body and a bent portion, one end of the wall body is connected to the side of the support plate, and the other end of the wall body is connected to the bent portion, the bent portion and the bent portion There is a space between the support plates. The support member according to claim 1, further comprising a light source setting portion formed by a side edge of the support plate extending in a direction facing the support surface. The support member of claim 1, further comprising a panel supporting portion extending from the upper edge of the light source setting portion toward the light guide plate for supporting a panel module. The support member of claim 1, wherein the support member is integrally formed by extrusion of aluminum. A backlight module for use with a backplane, the backlight module comprising: the support member according to claim 2 or 3; a light source disposed in the light source setting portion; and a light guide plate disposed on the support The light guide plate has a light-incident side end surface facing the light source. The backlight module of claim 5, wherein the wall, the bent portion and the support plate together form a space. The backlight module of claim 5, wherein the wall, the bent portion, the back plate and the support plate together form a space. The backlight module of claim 5, wherein the backplane has an inner surface of the backplane, and the inner surface of the backplane is coplanar with the support surface to jointly support the light guide. The backlight module of claim 5, wherein one end edge of the back plate extends to the branch The gusset is opposite the other side of the support surface. The backlight module of claim 9, wherein the back plate and the support member are locked by a fixing member, and the fixing member is inserted into the back plate from the other side of the back plate and penetrates from the back plate. The support plate. The backlight module of claim 5, wherein the backing plate extends along the bent portion to the other side of the wall body relative to the light guide plate. The backlight module of claim 11, wherein the back plate and the support member are locked by a fixing member, and the fixing member is disposed on the back plate from the other side of the back plate relative to the support member and the fixing And penetrate the interval. A display module comprising a backplane; the backlight module of any one of claims 5 to 10; a panel module disposed above the light guide panel; and a front frame surrounding the panel module, The front frame includes: a front wall surface facing the side end surface; and a front panel extending from an end of the front frame wall away from the support surface toward the center of the panel module; wherein the front frame and the front frame The support member is locked by a fixing member, and the fixing member is disposed on the front frame and the fixing portion from the other side of the front frame relative to the light-incident side end surface, and penetrates the space. A display device comprising: the display module according to claim 13; and a rear case surrounding the display module, the rear case comprising: a rear inner wall surface facing the light incident side end face; and a rear case a plate from the inner wall of the rear case away from the end of the panel module The center of the display module is extended; wherein the rear case and the support member are locked by a fixing member, and the fixing member is disposed on the rear case and the fixing portion from the other side of the rear cover relative to the display module And penetrate the interval. A display module comprising a backplane; the backlight module of any one of claims 5 to 8, 11 or 12; a panel module disposed above the light guide panel; and a front frame surrounding the The front panel includes: a front wall surface facing the light-incident end surface; and a front panel extending from an end of the front frame wall away from the support surface toward the center of the panel module The front frame and the support member are locked by a fixing member, and the fixing member is disposed on the front frame and the fixing portion from the other side of the front frame opposite to the light-incident side end surface, and penetrates the interval . A display device comprising: the display module of claim 15; and a rear case surrounding the display module, the rear case comprising: a rear inner wall surface facing the light entrance side end face; and a rear case a plate extending from an inner wall of the rear shell away from the end of the panel module toward a center of the display module; wherein the rear shell, the back panel and the support member are locked by a fixing member, and the fixing member is opposite to the rear shell The other side of the display module is disposed on the rear case, the back plate and the fixing portion, and penetrates the space. The display device of claim 14 or 16, further comprising a front cover surrounding the display module and having a front inner wall surface facing the light incident side end surface and A front shell plate extends from an end of the inner wall of the front shell away from the support surface of the back panel toward the center of the display module.