TW201507580A - Display device and touch display device and electrical device - Google Patents

Abstract

The disclosure relates to a display, and a touch device and an electronic apparatus using the display. The display includes a back cover, a liquid crystal panel, a support, and a back light module. The support includes a main body. The main body includes two opposite ends. The back cover defines a groove to accommodate one end of the support. The support and the back cover cooperatively define a space to accommodate the liquid crystal panel and the back light module. The back light module contacts with an interior surface of the back cover.

Description

Display device and touch display device and electronic device

The present invention relates to a display device, a touch display device having the display device, and an electronic device.

Please refer to FIG. 1, which is an exploded perspective view of a prior art liquid crystal display device. The liquid crystal display device 1 includes a front case 3, a rear case 5, and a liquid crystal display module 7. The front case 3 and the rear case 5 accommodate the liquid crystal display module 7.

The liquid crystal display module 7 includes a front iron frame 11, a liquid crystal panel 12, a plastic frame 13, a laminated optical film 15, a light guide plate 16, a reflection sheet 17, a light source 14 disposed on the side of the light guide plate 16, and a light source. Rear iron frame 19. The side wall of the plastic frame 13 extends inwardly with a hollow extending portion 103. The extending portion 103 spaces the inside of the plastic frame 13 into two spaces. One space accommodates the liquid crystal panel 12, and the other space accommodates the laminated optical film. a sheet 15, a light guide plate 16, a reflection sheet 17, and a light source 14 disposed on a side surface of the light guide plate 16, the rear iron frame 19 and the plastic frame 13 are fixed to accommodate the optical film 15, the light guide plate 16, the reflection sheet 17, and the light source 14. . The front iron frame 11 and the plastic frame 13 are fixed together to accommodate the liquid crystal panel 12. The front case 3 and the rear case 5 accommodate the liquid crystal display module 7 together.

As can be seen from the above, the liquid crystal display device 1 uses a large number of housing and holding components. For example, the plastic frame 13 and the rear iron frame 19 cause the thickness of the liquid crystal display device 1 to be thick, which cannot meet the demand for lightness and thinning of electronic products in recent years. The development of the thinner display of the liquid crystal display device 1 and the touch display device using the liquid crystal display device 1 is limited.

In view of the above, it is necessary to provide a thin and light display device, a touch display device, and an electronic device.

A display device includes a rear case, a liquid crystal panel and a backlight module; the display device includes a support frame having a main body, the main body includes opposite end portions, and the rear cover corresponds to one end of the support frame a recessed portion is defined in the recessed portion of the support frame, the support frame and the rear cover define a first space, and the liquid crystal panel and the backlight module are received in the first space, the backlight module The set contacts the inner surface of the back shell.

A touch display device includes a touch panel and a display device. The display device includes a back cover, a liquid crystal panel and a backlight module. The touch panel is disposed on the liquid crystal panel, and the display device includes a support frame. Having a main body, the main body includes two opposite ends, the end of the rear cover is provided with a groove at one end of the support frame, and one end of the support frame is fixed in the groove, the support frame and the rear The cover defines a first space, the liquid crystal panel and the backlight module are received in the first space, the backlight module contacts an inner surface of the rear case, and the touch panel is engaged with the liquid crystal panel in the rear case.

An electronic device comprising a rear case and a display device, the rear case being an outer casing of an electronic product, the electronic device comprising a support frame, the support frame having a main body, the main body comprising opposite ends, the rear case a groove is disposed at one end of the support frame, and one end of the support frame is fixed in the groove, the support frame and the rear case define a first space, and the display device is received in the first space Contact the inner surface of the rear case.

Compared with the prior art, the display device, the touch display device and the electronic device having the display device use a support frame on the bottom plate of the rear case to replace the rear iron frame and the plastic frame, thereby ensuring the original function. In this case, the number of components of the display device, the touch display device, and the electronic device is effectively reduced, which is advantageous for thinning the product.

1 is a perspective exploded view of a prior art liquid crystal display device.

2 is a perspective exploded view of a touch display device with a display device according to a first embodiment of the present invention.

Figure 3 is a cross-sectional view taken at III-III of Figure 2.

4 is a perspective view of the touch display device support frame of FIG. 2 .

Figure 5 is a partial enlarged view of the portion V in Figure 4.

Figure 6 is a partial enlarged view of the portion VI of Figure 2.

Figure 7 is a partial enlarged view of the portion VII of Figure 2.

Figure 8 is a perspective view of the support frame of Figure 2 disposed on the bottom plate of the rear case.

FIG. 9 is a perspective view of the display device of FIG. 2 assembled.

Figure 10 is a cross-sectional view taken along line X-X of Figure 9.

Figure 11 is a cross-sectional view taken along line XI-XI of Figure 9.

FIG. 12 is a perspective view of the second embodiment of the touch display device of the present invention, wherein the support frame is disposed on the rear case.

Figure 13 is a partial enlarged view of XIII in Figure 12.

Referring to FIG. 2 , the touch display device 2 includes a touch panel 10 and a display device 20 . The touch panel 10 is disposed on the display device 20 for implementing a touch operation. The display device 20 includes a liquid crystal panel 21, a light shielding tape 22, a backlight module 23, a support frame 282, and a rear case 281. The support frame 282 is disposed on the rear case 281 and defines a first space 2800 for receiving the liquid crystal panel 21, the light shielding tape 22, and the backlight module 23. The touch panel 10 is fastened to the liquid crystal panel 21 , the light shielding tape 22 , the backlight module 23 , and the support frame 282 .

The rear case 281 may be an outer casing of an electronic product such as a case of a tablet computer or the like. The rear housing 281 includes a bottom plate 280 and four side walls 2811 extending from the same side of the bottom surface of the bottom plate 280. A support frame 282 is disposed on the bottom plate 280. In the present embodiment, the first space 2800 formed by the bottom plate 280 and the support frame 282 is for accommodating the liquid crystal panel 21, the light shielding tape 22, and the backlight module 23. A groove 2801 corresponding to the position of the support frame 282 is defined on the bottom plate 280 for positioning and fixing the support frame 282. Referring to FIG. 3 , the recess 2801 defines a second space 2802 and a through opening 2803 connecting the second space 2802 and the first space 2800 . The width H of the second space 2802 located in the same cross section is greater than the through opening 2803. The width h. In the first embodiment, the groove 2801 at the position of the line III-III has an inverted T shape in cross section. The cross-sectional shape of the second space 2802 of the groove 2801 and the positional matching relationship with the through-hole 2803 may also be as shown in FIG. 11, and the width H of the second space 2802 is larger than the width h of the through-hole 2803. The side adjacent to the first space 2800 is located on the same plane. This bottom plate 280 is a metal piece in this embodiment.

Referring to FIG. 4 , the support frame 282 includes a first sidewall 283 , a second sidewall 284 , a third sidewall 285 , a fourth sidewall 286 , and a fifth sidewall 287 . The second sidewall 284 is disposed opposite to the fourth sidewall 286. The first sidewall 283 and the fifth sidewall 287 are disposed on the same line and spaced apart by a distance. The first sidewall 283 is disposed opposite to the fifth sidewall 287 and the third sidewall 285. In this embodiment, referring to FIG. 5 to FIG. 7 , each of the first sidewall 283 , the second sidewall 284 , the third sidewall 285 , the fourth sidewall 286 , and the fifth sidewall 287 has a body 288 from the body 288 . The extended hook 289 and the carrying portion 291. The main body 288 includes opposite end portions, and the hook 289 is disposed at an end of the main body 288 adjacent to the bottom plate 280. The first side wall 283 and the fifth side wall 287 are respectively provided with hooks 289 on a side facing the first space 2800 and a side facing away from the first space 2800. The second sidewall 284, the third sidewall 285, and the fourth sidewall 286 are provided with a hook 289 on a side facing away from the first space 2800. The first sidewall 283 and the fifth sidewall 287 have extensions extending toward the first space 2800 at ends adjacent to the second sidewall 284 and the fourth sidewall 286. As shown in FIG. 6, the extension serves as the bearing portion 291. It is used to support the edge of the liquid crystal panel 21. The extension is at a distance from the end of the body 288 where the hook 289 is disposed. The second side wall 284 , the third side wall 285 , and the fourth side wall 286 extend toward the center of the first space 2800 , and one end of the extending portion is flush with the end of the main body 288 where the hook 289 is disposed. The extending portion serves as a bearing portion 291 for supporting an edge of the liquid crystal panel 21, and a surface of the extending portion facing the liquid crystal panel 21 is a bearing surface. In this embodiment, the support frame 282 is a plastic piece. In this embodiment, the support frame 282 is a single piece. In other embodiments, the first side wall 283, the second side wall 284, the third side wall 285, the fourth side wall 286, and the fifth side wall 287 may be completely or partially separated. .

The backlight module 23 includes an optical film set 24, a light source 25, a light guide plate 26, a double-sided tape 261, and a reflection sheet 27. The sum of the thicknesses of the light guide plate 26 and the reflection sheet 27 is substantially the same as the distance from the extension of the first side wall 283 and the fifth side wall 287 to the bottom plate 280. The thickness of the optical film set 24 is slightly less than or substantially equal to the thickness of the extension of the first side wall 283 and the fifth side wall 287. The distance from the bearing surface to the bottom plate 280 is substantially the same as the sum of the thickness of the optical film set 24, the light guide plate 26 and the reflective sheet 27. The length of the light source 25 is shorter than the distance between the second side wall 284 to the fourth side wall 286. The light guide plate 26 includes a light incident surface 263, a light exit surface 264 adjacent to the light incident surface 263, and a bottom surface 265 opposite to the light exit surface 264.

As shown in FIG. 8 to FIG. 11 , the support frame 282 is disposed on the bottom plate 280 , and the hook 289 is received in the groove 2801 and fastened to the inner surface of the groove 2801 . The reflective sheet 27 is disposed/attached to the bottom plate 280, and the double-sided tape 261 is disposed adjacent to the first side wall 283 and the fifth side wall 287 of the bottom plate 280. It can be understood that the double-sided tape 261 can be attached to the reflection sheet 27 when the reflection sheet 27 is long and the bottom plate 280 cannot be exposed. The light source 25 is disposed in the first space 2800 and abuts/intersists with the first sidewall 283 and the fifth sidewall 287. The bottom surface 265 of the light guide plate 26 is disposed adjacent to the reflection sheet 27, and the light incident surface 263 is disposed adjacent to the light source 25. The optical film group 24 is disposed on the light exit surface 264 side of the light guide plate 26. The light-shielding tape 22 is attached to the bearing surface of the carrying portion 291 and the edge of the liquid crystal panel 21, and the liquid crystal panel 21 is disposed and fixed to the carrying portion 291. The position between the first side wall 283 and the fifth side wall 287 is for providing a circuit board connected to the liquid crystal panel 21. The touch panel 10 is attached to the liquid crystal panel 21 via an optical adhesive and is housed in the rear case 281.

Compared with the prior art, the display device 20 replaces the rear iron frame and the plastic frame by providing a support frame 282 on the rear case 281, thereby effectively reducing the display device 20 and having the same function while ensuring the original function. The number of components of the touch display device 2 of the display device 20 reduces the product thinness and volume.

Referring to FIG. 12 and FIG. 13 , the second embodiment of the present invention is substantially the same as the first embodiment, except that the extension portion 3811 of the third side wall 385 of the rear case 381 is not disposed on all the main body 388 of the third side wall 385 . Rather, it is disposed adjacent to the fourth side wall 386 and the second side wall 384. The distance and thickness of the extension 3811 to the bottom plate 380 are substantially the same as the extensions on the first side wall 383 and the fifth side wall 387. This structure further reduces the overall weight of the display device 20 and the touch display device 2. Still another embodiment of the present invention is to provide a reflection layer on the inner side of the bottom plate, and to omit a reflection sheet or the like.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

2‧‧‧Touch display device

10‧‧‧Touch panel

20‧‧‧ display device

21‧‧‧LCD panel

22‧‧‧Lighting tape

23‧‧‧Backlight module

280, 380‧‧‧ bottom plate

2811‧‧‧ Side wall

281, 381‧‧‧ back shell

282‧‧‧Support frame

2800‧‧‧First space

2801‧‧‧ Groove

2802‧‧‧Second space

2803‧‧‧through

283, 383‧‧‧ first side wall

284, 384‧‧‧ two side walls

285, 385‧‧‧ third side wall

286, 386‧‧‧ fourth side wall

287, 387‧‧‧ fifth side wall

288, 388‧‧‧ subjects

289‧‧‧ card hook

291‧‧‧Loading Department

24‧‧‧Optical diaphragm group

25‧‧‧Light source

26‧‧‧Light guide plate

261‧‧‧Double-sided tape

27‧‧‧reflector

3811‧‧‧Extension

no

21‧‧‧LCD panel

22‧‧‧Lighting tape

280‧‧‧floor

289‧‧‧ card hook

24‧‧‧Optical diaphragm group

25‧‧‧Light source

26‧‧‧Light guide plate

261‧‧‧Double-sided tape

27‧‧‧reflector

Claims (12)

A display device comprising a rear case, a liquid crystal panel and a backlight module; wherein the display device comprises a support frame, the support frame has a main body, and the main body comprises two opposite ends, the rear cover corresponding to the support frame One end portion is provided with a groove, and one end portion of the support frame is fixed in the groove, the support frame and the rear case define a first space, and the liquid crystal panel and the backlight module are received in the first space, The backlight module contacts an inner surface of the rear case. The display device of claim 1, wherein the support frame is provided with a hook at an end of the support, and the groove is engaged with the hook to fix the support frame to the rear case. The display device of claim 2, wherein the body is provided with a hook on a side facing the first space and a side facing away from the first space, the groove having an inverted T shape in cross section. The display device of claim 2, wherein the groove has a second space and a through opening connecting the second space and the first space, and a width of the second space in the same cross section is greater than a width of the through hole . The display device of claim 1, wherein the support frame comprises a first side wall, a second side wall, a third side wall, a fourth side wall and a fifth side wall, each of the first side wall, the second side wall, and the third side wall, The fourth side wall and the fifth side wall have a main body and a hook extending from the main body. The second side wall is opposite to the fourth side wall. The first side wall and the fifth side wall are disposed on the same straight line and spaced apart by a distance. The sidewall is disposed opposite to the fifth sidewall and the third sidewall, and a position between the first sidewall and the fifth sidewall is used to provide a circuit board connected to the liquid crystal panel. The display device of claim 1 or 5, wherein the support frame extends into the first space, the extension portion supports an edge of the liquid crystal panel, and the backlight module comprises a light guide plate and a reflection sheet, the reflection The sheet contacts the back shell, and the sum of the thickness of the light guide plate and the reflection sheet is substantially the same as the distance from the extension portion to the rear case. The display device of claim 6, wherein the extension portion is disposed at four corners of the first sidewall, the fifth sidewall, and the third sidewall adjacent to the second sidewall and the fourth sidewall, the backlight module further includes The optical film set, the thickness of the optical film set is substantially the same as the thickness of the extension. The display device of claim 6, wherein the body of the second side wall, the third side wall and the fourth side wall has an extension extending toward the first space, the extension portion and the end of the main body having the hook The surface of the extending portion facing the liquid crystal panel is a bearing surface, the backlight module includes an optical film group, a light guide plate and a reflective sheet, and the reflective sheet contacts the rear shell, and the bearing surface is The distance of the rear case is substantially the same as the thickness of the optical film set, the light guide plate and the reflective sheet. A touch display device includes a touch panel and a display device, the display device includes a back cover, a liquid crystal panel, and a backlight module. The touch panel is disposed on the liquid crystal panel, wherein the display device includes a support frame. The support frame has a main body, and the main body includes two opposite ends. The rear cover is provided with a groove at one end of the support frame, and one end of the support frame is fixed in the groove, and the support frame is The back cover defines a first space, the liquid crystal panel and the backlight module are received in the first space, the backlight module contacts an inner surface of the rear case, and the touch panel is engaged with the liquid crystal panel in the rear case. The touch display device of claim 9, wherein the backlight module comprises a reflective sheet, the reflective sheet contacting the rear case. An electronic device includes a rear case and a display device, wherein the rear case is an outer casing of an electronic product, wherein the electronic device includes a support frame, the support frame has a main body, and the main body includes opposite end portions, and the rear portion One end of the shell corresponding to the support frame is provided with a groove, one end of the support frame is fixed in the groove, the support frame and the rear case define a first space, and the display device is received in the first space Inside and in contact with the inner surface of the rear case. The electronic device of claim 11, wherein the backlight module comprises a reflective sheet, the reflective sheet contacting the rear case.