TW201346389A - Display device - Google Patents

Abstract

A display device comprises a back bezel, a reflector, a light module, a film layer, a display panel, and a front bezel. The back bezel has a bottom plate and an annular side wall surrounding the bottom plate. The annular side wall has a supporting stage far from the bottom plate. The reflector has a main body and two bending portions extending from the opposite two edge of the main body respectively. The main body disposes on the bottom plate. The two bending portions dispose on the supporting stage. The light module disposes on the main body of the reflector. The film layer and the display panel dispose on those bending portions. The film layer is up the light module. The display panel is up the film layer. The display panel and the film layer keep in a distance. The front bezel disposes to the back bezel, and those bending portions are between the front bezel and the supporting stage.

Description

Display device

The present invention relates to an electronic device, and more particularly to a display device.

In recent years, with the rapid development of technology and information, the manufacturing technology of electronic products has also gradually improved. In addition to the pursuit of light, thin, short, and small features, electronic products are moving toward superior performance. In the case of a display device, the display device of the cathode display tube (or Cathode Ray Tube, CRT) type has always dominated the market for display devices because of its excellent display quality and economy. However, cathode display tube type displays have the problem of excessive volume and excessive energy consumption. For high image quality, low power consumption, thin mass production, low voltage driving, small size, etc., the cathode display tube type display is obviously unable to Reach this request. In response to this, the liquid crystal display (LCD) will have a great advantage and gradually replace the CRT. At present, liquid crystal displays have been widely used in medium and small portable televisions, video phones, video recorders, notebook computers, desktop displays, tablet computers, and projection color televisions.

A conventional liquid crystal display includes a housing, a plastic frame, and a display module. The display module is disposed in the housing, and the display module further includes a display panel, an optical film, and a backlight module. The plastic frame is disposed in the housing, and the plastic frame is used to fix the display panel and the optical film, so that the display panel and the optical film can be stacked on each other and maintained at a distance. Moreover, in order to improve the fixing effect of the display panel and the optical film, it is even necessary to provide a limiting rib inside the casing to match the plastic frame. As a result, the cost of the conventional liquid crystal display will increase.

The present invention provides a display device for reducing the cost of a conventional liquid crystal display.

The display device disclosed in the present invention comprises a back frame, a reflective sheet, a light source module, an optical film, a display panel and a front frame. The back frame comprises a bottom plate and a ring-shaped side wall surrounding the bottom plate, and the end of the ring-shaped side wall away from the bottom plate has a carrying platform. The reflective sheet comprises a main body portion and a bent portion extending from opposite ends of the main body portion and bent over, the main body portion is disposed on the bottom plate, and the two bent portions are located on the carrying platform. The light source module is located on the main body of the reflective sheet. The opposite ends of the optical film are respectively disposed on the two-folded portion, and the optical film is located on the light source module. The opposite ends of the display panel are respectively disposed on the two-folded portion, and the display panel is located on the optical film, and the display panel is spaced apart from the optical film by a distance. The front frame is set in the back frame, and the two-folded portion is sandwiched between the front frame and the carrying platform.

According to the display device disclosed in the above aspect of the invention, the display panel and the optical film are simultaneously fixed by the bent portion of the reflective sheet, and the display panel and the optical film can be kept at a distance. Therefore, the bending portion of the reflective sheet can replace the function of the plastic frame in the conventional display device, so that the display device of the embodiment does not need to use the plastic frame, thereby facilitating the thinning of the display device and reducing the display device. Material costs.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

1A to 1D, FIG. 1A is a perspective view showing a structure of a display device according to an embodiment of the present invention, and FIG. 1B is an exploded view of a display device according to an embodiment of the present invention, FIG. 1C. It is an enlarged view of a partial structure of a display device according to an embodiment of the present invention, and FIG. 1D is a cross-sectional view taken along line 1D of FIG. 1A.

The display device 10 of the present embodiment is suitable for use in a tablet computer, a flat panel television, and a desktop computer screen, but is not limited thereto. The display device 10 includes a back frame 100, a reflective sheet 200, a light source module 300, an optical film 400, a display panel 500, and a front frame 600.

The back frame 100 includes a bottom plate 110 and a ring-shaped side wall 120 surrounding the bottom plate 110. The annular side wall 120 is erected around the bottom plate 110, and the annular side wall 120 is roughly an obtuse angle with the bottom plate 110. One end of the annular side wall 120 away from the bottom plate 110 is bent to form a carrying platform 130, and the carrying platform 130 is substantially parallel to the bottom plate 110.

The reflection sheet 200 includes a main body portion 210 and a bent portion 220 extending from opposite ends of the main body portion 210 and being bent over. In addition, the main body portion 210 is disposed on the bottom plate 110 and extends to the annular side wall 120 such that the bent portion 220 is located on the carrying platform 130. Further, the bent portion 220 is formed by bending the end edge of the reflection sheet 200 so that the outer shape of the bent portion 220 substantially exhibits a continuous S-shaped bending. In addition, in the embodiment, each of the bent portions 220 further includes a first receiving groove 221, a second receiving groove 222 located on the first receiving groove 221, and a plurality of first receiving portions. A flap 2201 between the groove 221 and the second receiving groove 222. The opening directions of the first accommodating groove 221 and the second accommodating groove 222 are directed toward the main body portion 210. The first accommodating groove 221 and the second accommodating groove 222 can be kept at a distance by the thickness of the folding plates 2201. .

It should be noted that the reflection sheet 200 of the above embodiment includes two opposite bent portions 220, however, the number of the bent portions 220 is not intended to limit the present invention. For example, the number of the bent portions 220 may also be three, and are respectively located at adjacent three ends of the main body portion 210. Alternatively, the number of the bent portions 220 may be four and located at the four ends of the main body portion 210, respectively.

In addition, in this embodiment or other embodiments, a plurality of adhesive layers 240 are disposed between the flaps 2201, and the adhesive layer 240 may be a double-sided adhesive, but is not limited thereto. The glue layer 240 causes the flaps 2201 to be stacked and fixed to each other in an adhesive manner.

The light source module 300 is located on the main body portion 210 of the reflective sheet 200. For the present embodiment, the light source module 300 can include a plurality of sequentially arranged light sources 301, so that the display device 10 of the present invention adopts a continuous-type backlight. It should be noted that, in other embodiments, as shown in FIG. 6, the light source module 300 can also include a light guide plate 302 and a light source 301 adjacent to the edge of the light guide plate 302, so that the display device 10 adopts a side view. Backlight.

The opposite ends of the optical film 400 are respectively received in the first receiving groove 221 of the two-folded portion 220 , and the optical film 400 is located above the light source module 300 . The optical film 400 may be a diffusion sheet, a light-increasing sheet, or a composite film formed by stacking two or more of the diffusion sheet and the light-increasing sheet, but is not limited thereto.

The opposite ends of the display panel 500 are respectively received in the second accommodating slots 222 of the two-folded portion 220, and the display panel 500 is located on the optical film 400. Since the first accommodating groove 221 and the second accommodating groove 222 are kept at a distance by the thickness of the stack of the folding plates 2201, the display panel 500 and the optical film 400 can be separated by the distance of the folding plates 2201. .

The front frame 600 is disposed on the back frame 100, and the front frame 600 surrounds the display panel 500. The two-folded portion 220 is sandwiched between the front frame 600 and the carrying platform 130.

In addition, in the embodiment, the display device 10 further includes a circuit board 700 and at least one flexible cable 710 electrically connected to the circuit board 700. The bent portion 220 of the reflective sheet 200 has at least one notch 225, and the notch 225 communicates with the second receiving groove 222. The flexible cable 710 is electrically connected to the display panel 500, and the flexible cable 710 is passed through the notch 225 to pass through the bent portion 220 to electrically connect the circuit board 700. It should be noted that the number of the notches 225 of the bent portion 220 of the single side of the embodiment and the number of the flexible wires 710 of the electrical connection circuit board 700 are exemplified by four, but are not intended to limit the present invention.

In addition, in the embodiment or other embodiments, the front frame 600 can have two opposite limiting blocks 610 protruding from the front frame 600 toward the carrying platform 130. The two limiting blocks 610 respectively abut the two-folded portion 220 and are adjacent to the two second receiving slots 222 , so that the display panel 500 is interposed between the two limiting blocks 610 . The limiting block 610 is used to fix the display panel 500 to prevent the display panel 500 from shaking relative to the front frame 600.

In addition, in the embodiment or other embodiments, the opposite ends of the optical film 400 are respectively spaced apart from the groove bottoms of the two first receiving grooves 221 by a distance D1. Since the optical film 400 is easily thermally expanded by the illumination of the light source module 300, a gap D1 can be reserved between the optical film 400 and the groove bottom of the first accommodating groove 221. In this way, the optical film sheet 400 can be prevented from interfering with the groove bottom of the first accommodating groove 221 due to expansion, thereby preventing the optical film sheet 400 from being deformed by expansion and being deformed.

The display device 10 of the present embodiment simultaneously fixes the display panel 500 and the optical film 400 by the bent portion 220 of the reflective sheet 200, and maintains the display panel 500 and the optical film 400 at a distance. Therefore, the bending portion 220 of the reflective sheet 200 can replace the function of the plastic frame in the conventional display device, so that the display device 10 of the embodiment does not need to use a plastic frame to reduce the cost.

2A to 2C, FIG. 2A is a structural exploded view of a display device according to another embodiment of the present invention, and FIG. 2B is an enlarged partial view of a display device according to an embodiment of the present invention. 2C is a cross-sectional view of a display device in accordance with another embodiment of the present invention. This embodiment is similar to the embodiment of Figs. 1A to 1D, and the same reference numerals denote similar objects.

The difference between the embodiment and the embodiment of FIG. 1A to FIG. 1D is that at least one supporting member 134 is erected on the carrying platform 130, and a receiving plate 136 is disposed at one end of the supporting member 134 away from the supporting platform 130. The carrier plate 136 is generally parallel to the carrier platform 130. The first accommodating groove 221 is interposed between the carrier 136 and the carrying platform 130 such that the display panel 500 is positioned above the carrier 136 and the optical film 400 is located below the carrier 136. In this way, in addition to ensuring that the display panel 500 and the optical film 400 are kept at a distance, the pressing gravity of the display panel 500 can be supported by the carrier 136 to prevent the downward pressure of the display panel 500 from directly applying pressure to the optical The diaphragm 400 causes a defect.

It should be noted that the single-side carrying platform 130 shown in this embodiment is exemplified by seven supporting members 134 and seven supporting plates 136, but the number of supporting members 134 and receiving plates 136 is not used to limit the present invention. .

Please refer to FIG. 3A to FIG. 3C, FIG. 3A is an exploded view of a display device according to another embodiment of the present invention, and FIG. 3B is an enlarged view of a partial structure of the display device according to an embodiment of the invention. 3C is a cross-sectional view of a display device in accordance with another embodiment of the present invention. This embodiment is similar to the embodiment of Figs. 1A to 1D, and the same reference numerals denote similar objects.

The difference between the embodiment and the embodiment of FIG. 1A to FIG. 1D is that the loading platform 130 further has at least one positioning block 132. The bending portion 220 has at least one positioning hole 223 extending through the first receiving groove 221 . The end edge of the optical film 400 has at least one notch 410, and the positioning block 132 is located in the positioning hole 223 and the notch 410. In this way, the positioning block 132 can provide the positioning effect when the bent portion 220 and the optical film 400 are assembled.

Moreover, the height of the positioning block 132 protruding from the carrying platform 130 may be greater than the thickness of the optical film 400. In this way, in addition to ensuring that the display panel 500 is kept at a distance from the optical film 400, the pressing gravity of the display panel 500 can be supported by the positioning block 132 to prevent the downward pressure of the display panel 500 from directly applying pressure to the optical The diaphragm 400 causes a defect.

It should be noted that the number of the positioning block 132, the positioning hole 223 and the notch 410 are not used to define the present invention.

4A to 4C, FIG. 4A is a structural exploded view of a display device according to another embodiment of the present invention, and FIG. 4B is an enlarged partial view of the display device according to an embodiment of the present invention. 4C is a cross-sectional view of a display device in accordance with another embodiment of the present invention. This embodiment is similar to the embodiment of Figs. 1A to 1D, and the same reference numerals denote similar objects.

The difference between this embodiment and the embodiments of FIGS. 1A to 1D is that the display device 10 further includes a spacer 230. The spacer 230 is disposed in the bent portion 220 , and the spacer 230 is interposed between the first receiving groove 221 and the second receiving groove 222 . Therefore, the first accommodating groove 221 and the second accommodating groove 222 can be spaced apart by the thickness of the spacer 230 itself to ensure that the display panel 500 and the optical film 400 can maintain a distance.

5A to 5C, FIG. 5A is a structural exploded view of a display device according to another embodiment of the present invention, and FIG. 5B is an enlarged partial view of a display device according to an embodiment of the present invention. Figure 5C is a cross-sectional view of a display device in accordance with another embodiment of the present invention. This embodiment is similar to the embodiment of Figs. 1A to 1D, and the same reference numerals denote similar objects.

The difference between this embodiment and the embodiments of FIGS. 1A to 1D is that the display device 10 further includes a spacer 230. The spacer 230 has at least one bump 232 that protrudes in a direction toward the carrying platform 130. The single spacer 230 of the present embodiment is exemplified by having seven bumps 232, but the number of the bumps 232 is not intended to limit the present invention. The end edge of the optical film 400 is recessed inwardly to form at least one notch 410. The bent portion 220 has at least one opening 224 extending through the first receiving groove 221 . The spacer 230 is disposed in the bent portion 220 , and the spacer 230 is interposed between the first receiving groove 221 and the second receiving groove 222 . The bump 232 on the spacer 230 passes through the opening 224 into the first receiving groove 221 , and the bump 232 is located in the notch 410 of the optical film 400 . In this way, the bump 232 can provide the positioning effect when the optical film 400 is in the first accommodating groove 221 .

Moreover, the thickness of the bump 232 can be greater than the thickness of the optical film 400 to ensure that the optical film 400 has sufficient expansion space in the first receiving groove 221 to overcome the problem of deformation due to expansion and compression.

In addition, the first accommodating groove 221 and the second accommodating groove 222 can be spaced apart by a thickness of the spacer 230 itself to ensure that the display panel 500 and the optical film 400 can maintain a distance. Moreover, the pressing force of the display panel 500 can be supported by the spacer 230 and its bumps 232 to prevent the pressing force of the display panel 500 from directly pressing on the optical film 400 to cause a defect.

According to the display device of the above embodiment, the display panel and the optical film are simultaneously fixed by the bent portion of the reflection sheet, and the display panel and the optical film can be kept at a distance. Therefore, the bending portion of the reflective sheet can replace the function of the plastic frame in the conventional display device, so that the display device of the embodiment does not need to use the plastic frame, thereby facilitating the thinning of the display device and reducing the display device. Material costs.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

10. . . Display device

100. . . Back frame

110. . . Bottom plate

120. . . Ring side wall

130. . . Carrier platform

132. . . Positioning block

134. . . supporting item

136. . . Board

200. . . A reflective sheet

210. . . Main body

220. . . Bending section

2201. . . Flap

221. . . First accommodating slot

222. . . Second receiving slot

223. . . Positioning hole

224. . . Opening

225. . . gap

230. . . Gasket

232. . . Bump

240. . . Glue layer

300. . . Light source module

301. . . light source

302. . . Light guide

400. . . Optical diaphragm

410. . . gap

500. . . Display panel

600. . . Front frame

610. . . Limit block

700. . . Circuit board

710. . . Soft cable

Fig. 1A is a perspective view showing the structure of a display device according to an embodiment of the present invention.

Fig. 1B is an exploded perspective view showing a display device according to an embodiment of the present invention.

1C is an enlarged view of a partial structure of a display device according to an embodiment of the present invention.

Fig. 1D is a cross-sectional view taken along line 1D of Fig. 1A.

Fig. 2A is an exploded perspective view showing a display device according to another embodiment of the present invention.

2B is an enlarged view of a partial structure of a display device according to an embodiment of the present invention.

2C is a cross-sectional view of a display device in accordance with another embodiment of the present invention.

Fig. 3A is an exploded perspective view showing a display device according to another embodiment of the present invention.

Fig. 3B is an enlarged view showing a partial structure of a display device according to an embodiment of the present invention.

3C is a cross-sectional view of a display device in accordance with another embodiment of the present invention.

Fig. 4A is an exploded perspective view showing a display device according to another embodiment of the present invention.

Fig. 4B is an enlarged view showing a partial structure of a display device according to an embodiment of the present invention.

Figure 4C is a cross-sectional view of a display device in accordance with another embodiment of the present invention.

Fig. 5A is an exploded perspective view showing a display device according to another embodiment of the present invention.

Fig. 5B is an enlarged view showing a partial structure of a display device according to an embodiment of the present invention.

Figure 5C is a cross-sectional view of a display device in accordance with another embodiment of the present invention.

Figure 6 is a cross-sectional view of a display device in accordance with another embodiment of the present invention.

10. . . Display device

100. . . Back frame

110. . . Bottom plate

120. . . Ring side wall

130. . . Carrier platform

200. . . A reflective sheet

210. . . Main body

220. . . Bending section

2201. . . Flap

221. . . First accommodating slot

222. . . Second receiving slot

225. . . gap

300. . . Light source module

301. . . light source

400. . . Optical diaphragm

500. . . Display panel

600. . . Front frame

700. . . Circuit board

710. . . Soft cable

Claims (11)

A display device comprising: a back frame comprising a bottom plate and a ring-shaped side wall surrounding the bottom plate, the ring-shaped side wall having a bearing platform away from the end of the bottom plate; a reflective sheet comprising a main body portion and the main body a bent portion formed by extending at opposite ends of the portion and extending over the cover, the main body portion is disposed on the bottom plate, the two bent portion is located on the carrying platform, and a light source module is located at the main portion of the reflective sheet An optical film having opposite ends disposed on the two bent portions, wherein the optical film is located on the light source module; and a display panel, the opposite ends of which are respectively disposed on the two bent portions, and The display panel is located on the optical film, and the display panel is spaced apart from the optical film; and a front frame is disposed on the back frame, and the two bending portions are sandwiched between the front frame and the bearing Between platforms. The display device of claim 1, wherein the front frame has opposite second limiting blocks, the two limiting blocks respectively abut the two bent portions, and the display panel is interposed between the two limiting blocks. The display device of claim 1, wherein the carrying platform has at least one positioning block, at least one of the bent portions has a positioning hole, and the positioning block is located at the positioning hole. The display device of claim 1, wherein each of the bent portions has a first receiving groove and a second receiving groove on the first receiving groove, and opposite ends of the optical film respectively The two ends of the display panel are respectively disposed on the two second receiving slots. The display device of claim 4, wherein the opposite ends of the optical film are spaced apart from the groove bottoms of the two first receiving grooves, respectively. The display device of claim 4, wherein at least one supporting member is erected on the carrying platform, the supporting member is provided with a receiving plate at an end of the supporting platform, and the first receiving groove is interposed between the bearing plate and the bearing Between platforms. The display device of claim 4, wherein the bent portion comprises a plurality of folded stacking flaps, the folding plates being interposed between the first receiving groove and the second receiving groove, at least two There is a glue layer between the flaps. The display device of claim 4, further comprising a spacer disposed in the bent portion, and the spacer is interposed between the first receiving groove and the second receiving groove. The display device of claim 8, wherein the end edge of the optical film is recessed inwardly to form at least one notch, the spacer has at least one protrusion, and the protrusion is inserted into the first receiving groove. And the bump is located at the notch of the optical film. The display device of claim 1, wherein the light source module comprises a plurality of consecutively arranged light sources. The display device of claim 1, wherein the light source module comprises a light guide plate and a light source adjacent to an edge of the light guide plate.