TWI498637B - Liquid crystal display, frame, and assembly method thereof - Google Patents

Description

Liquid crystal display, frame and assembly method thereof

This invention relates to a liquid crystal display, and more particularly to a frame for a liquid crystal display.

Liquid crystal display (LCD) has high image quality, small size, light weight, low voltage drive, low power consumption and wide application range. It has been widely used in portable TVs, mobile phones, and video recording. In consumer electronics or computer products such as projectors, notebook computers, desktop displays, and projection TVs, it has become the mainstream of displays.

As the size of the liquid crystal display becomes larger, how to effectively reduce the thickness of the liquid crystal display frame without lowering the visible area of the liquid crystal display becomes an important issue. Especially in the case where a plurality of liquid crystal displays need to be spliced, an excessively thick frame may seriously affect the quality of the display screen during splicing. Therefore, how to reduce the influence of the thickness of the frame when splicing the liquid crystal display becomes a very important subject.

Therefore, the object of the present invention is to provide a liquid crystal display A frame to reduce the thickness of the frame of the liquid crystal display.

According to an embodiment of the invention, a liquid crystal display comprising a frame, a liquid crystal panel, and a backlight module is provided. The frame includes a bottom surface having opposite first and second long sides, and opposite first and second short sides. The frame includes a first resisting portion disposed on the first long side, a second resisting portion disposed on the second long side, a first bent portion disposed on the first short side and the second short side, and a second Bend section. The height of the first abutting portion is smaller than the height of the second abutting portion. The first bending portion includes a supporting surface parallel to the bottom surface, and the second bending portion includes a pressing surface parallel to the bottom surface, wherein the height of the second bending portion is greater than the height of the first bending portion. The backlight module is disposed between the support surface and the bottom surface. The liquid crystal panel is disposed between the pressing surface and the supporting surface.

The height of the first bent portion approximates the height of the first resisting portion. The height of the second bent portion approximates the height of the second resisting portion. The frame further includes a side stop portion, the side stop portion is disposed on the first short side, and the first bent portion of the first short side is located between the second bent portion and the side stop portion. The liquid crystal display further includes a tape attached to the liquid crystal panel and the side stopper so that the liquid crystal panel is located between the tape and the second resisting portion. The side stop portion may include a lug, and the lug is folded over the first resisting portion to position the liquid crystal panel between the lug and the second resisting portion. The backlight module includes a flexible circuit board, and the side barrier portion and the first bent portion are spaced apart, and the flexible circuit board is pierced by the interval. The liquid crystal panel includes a flexible circuit board, and the flexible circuit board is disposed on the corresponding first short side to pass out from above the first bent portion. The second short side of the frame includes two second bent portions and a first bent portion, and the first bent portion is located between the two second bent portions. The liquid crystal display further includes a tape attached to the liquid crystal panel and adjacent to the first resisting portion. The second bent portion is such that the liquid crystal panel is located between the tape and the second abutting portion. The second bending portion adjacent to the first abutting portion includes a lug, and the lug is folded over the first abutting portion to position the liquid crystal panel between the lug and the second abutting portion. The thickness of the bottom surface, the first resisting portion, the second resisting portion, the first bent portion, and the second bent portion is about 0.27 mm (mm) to 0.33 mm (mm).

Another aspect of the present invention is a method for assembling a liquid crystal display, comprising providing the foregoing frame, and then placing a backlight module between the support surface and the bottom surface, and then placing the liquid crystal panel between the support surface and the pressing surface Wherein the liquid crystal panel slides between the support surface and the pressing surface by the first long side. The step of providing a frame includes bending the sheet to form a first abutting portion, a second abutting portion, a first bent portion, and a second bent portion on the bottom surface. This method also includes an adhesive tape that is adhered to the liquid crystal panel and the frame.

Another aspect of the present invention is a frame for a liquid crystal display, the frame comprising a bottom surface, wherein the bottom surface has a first side, a second side, a third side, and a fourth side, the first side corresponding to the third side, the second side The edge corresponds to the fourth side. The frame includes a first resisting portion disposed on the first side, a first bent portion disposed on the second side, and a side stop portion disposed on the second side. The first bend includes a support surface that is parallel to the bottom surface. The side stop portion is located between the first resisting portion and the first bent portion, and the height of the side stop portion is greater than the height of the first resisting portion. The frame further includes a second bending portion disposed on the second side, and the first bending portion is located between the first abutting portion and the second bending portion, and the second bending portion further comprises a pressing surface parallel to the bottom surface And the height of the pressing surface is greater than the height of the supporting surface. The frame further includes a second resisting portion disposed on the third side, and the second The height of the resisting portion is greater than the height of the first resisting portion.

A further aspect of the present invention is a combined display module comprising two liquid crystal displays, wherein the first resisting portion of one of the liquid crystal displays is in close contact with the first or third side of the other liquid crystal display. The thickness of the first resisting portion is between 0.27 mm (mm) and 0.33 mm (mm). The distance between the liquid crystal panels of the liquid crystal display is between 0.54 mm (mm) and 0.66 mm (mm).

A further aspect of the present invention provides a method for assembling a liquid crystal display, comprising: disposing a backlight module in a frame, inserting the liquid crystal panel from above the first resisting portion into the frame, and sliding the liquid crystal panel on the supporting surface. Alternatively, the liquid crystal panel is slid under the pressed surface. After the liquid crystal panel touches the second resisting portion, the insertion of the liquid crystal panel is stopped. The method further includes attaching the adhesive tape to the side block and the liquid crystal panel to fix the liquid crystal panel between the tape and the second resisting portion. The method further includes folding the lug of the side stop portion such that the folded lug is located above the first abutting portion to fix the liquid crystal panel between the folded lug and the second abutting portion.

The frame of the present invention is formed by bending a plate material, and the liquid crystal panel and the backlight module of the liquid crystal display can be directly assembled in the frame, and respectively pass through the first bending portion, the second bending portion, the first resisting portion, and the first The second resisting part is fixed. The first resisting portion and the second resisting portion can be regarded as the frame of the liquid crystal display, and the thickness of the frame is effectively reduced when the plurality of liquid crystal displays are spliced.

100‧‧‧Frame

110‧‧‧ bottom

112‧‧‧ first side

114‧‧‧ second side

116‧‧‧ third side

118‧‧‧ fourth side

120‧‧‧First Resist

130‧‧‧First bend

132‧‧‧Support surface

140‧‧‧ Side stop

142‧‧‧ interval

150‧‧‧second bend

152‧‧‧ Pressing surface

160‧‧‧second resisting department

170‧‧‧ Tape

180‧‧‧ lugs

200, 200a, 200b‧‧‧ liquid crystal display

210‧‧‧Backlight module

214‧‧‧Light guide plate

212‧‧‧reflector

218‧‧‧First flexible circuit board

216‧‧‧Light source

222‧‧‧Second flexible circuit board

220‧‧‧LCD panel

300‧‧‧Combined display module

1 is a partial schematic view showing a first embodiment of a frame of a liquid crystal display of the present invention.

Figure 2 is a partial schematic view showing a second embodiment of the frame of the liquid crystal display of the present invention.

Figure 3 is an exploded view showing one embodiment of a liquid crystal display to which the framework of the present invention is applied.

Fig. 4 is a schematic view showing the assembly of the liquid crystal display of Fig. 3.

5A and 5B are schematic views respectively showing different stages of assembly of another embodiment of a liquid crystal display to which the framework of the present invention is applied.

Figure 6 is a schematic view showing another embodiment of a liquid crystal display to which the framework of the present invention is applied.

7A and 7B are schematic views respectively showing still another embodiment of a liquid crystal display to which the framework of the present invention is applied.

Figure 8 is a schematic diagram showing an embodiment of a modular display module to which the framework of the present invention is applied.

The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. The spirit and scope of the invention are not departed.

Referring to Figure 1, there is shown a partial schematic view of a first embodiment of a frame of a liquid crystal display of the present invention. The frame 100 includes a bottom surface 110 having a first side 112, a second side 114, a third side 116 and a fourth side (not shown), wherein the first side 112 corresponds to the third side 116 and the second side 114 corresponds to the fourth side.

The frame 100 includes a first abutting portion 120 disposed on the first side 112 and a first bent portion 130 and a side blocking portion 140 disposed on the second side 114 . The side stop portion 140 is disposed between the first bending portion 130 and the first abutting portion 120, or the side blocking portion 140 is disposed at the corner of the first side 112 where the first resisting portion 120 and the second side portion 114 are sandwiched. At the office. The height of the side stop portion 140 is greater than the height of the first resisting portion 120, and preferably approximates (or is equal to) the height of the first bent portion 130. There is a gap 142 between the first bent portion 130 and the side stop portion 140. The first bent portion 130 includes a support surface 132 that is parallel to the bottom surface 110.

The frame 100 further includes a second bending portion 150 disposed on the second side 114 , wherein the first bending portion 130 is located between the second bending portion 150 and the side blocking portion 140 . The second bent portion 150 has a pressing surface 152 which is parallel to the bottom surface 110. The height of the second bending portion 150 is greater than the height of the first bending portion 130, that is, the spacing between the pressing surface 152 and the bottom surface 110 is greater than the spacing between the supporting surface 132 and the bottom surface 110.

The frame 100 further includes a second resisting portion 160 disposed on the third side 116, wherein the second bent portion 150 is located between the first bent portion 130 and the second resisting portion 160, or the second bent portion 150 is It is disposed at a corner of the second side 114 and the third side 116. The height of the first abutting portion 120 on the first side 112 is smaller than the height of the second abutting portion 160 on the third side 116.

Referring to Fig. 2, there is shown a partial schematic view of a second embodiment of the frame of the liquid crystal display of the present invention. The frame 100 includes a bottom surface 110 and a setting a first resisting portion 120 on the first side 112 of the bottom surface 110, a second resisting portion 160 disposed on the third side 116 of the bottom surface 110, and a first bent portion disposed on the fourth side 118 of the bottom surface 110 130 and the second bent portion 150. The height of the second abutting portion 160 is greater than the height of the first abutting portion 120. The height of the pressing surface 152 of the second bending portion 150 is greater than the height of the supporting surface 132 of the first bending portion 130. The fourth side 118 has two second bending portions 150 , and the first bending portion 130 is disposed between the two second bending portions 150 .

The frame 100 is obtained by stamping a sheet material, for example, a metal sheet, and then bending along a bending line formed by punching to obtain a first resisting portion 120, a first bending portion 130, a side blocking portion 140, and a second bending portion. The folded portion 150 and the frame 100 of the second resisting portion 160. The thickness of the first resisting portion 120, the first bending portion 130, the side blocking portion 140, the second bending portion 150, and the second resisting portion 160 is the same as the thickness of the plate, and the thickness thereof is about 0.09 mm (mm). Up to 2.00 mm (mm). The bottom surface 110 of the frame 100 can be a chevron plane. The height of the first bent portion 130 may be approximated (or equal to) the height of the first resisting portion 120 (or the side blocking portion 140), and the height of the second bent portion 150 may be approximated (or equal to) the second resisting portion. The height of 160.

Referring to Figure 3, there is shown an exploded view of one embodiment of a liquid crystal display to which the framework of the present invention is applied. The liquid crystal display 200 further includes a backlight module 210 in addition to the frame 100. The backlight module 210 includes an optical film such as a reflective sheet 212 and a light guide plate 214. The backlight module 210 further includes a light source 216 and is driven. The first flexible circuit board 218 of the light source 216. The light source 216 in this embodiment may be a side light source, and the light source 216 may be a light bar including a plurality of light emitting diodes, and the first flexible circuit board 218 is coupled to light source 216. The components such as the reflection sheet 212, the light guide plate 214, and the light source 216 of the backlight module 210 are disposed between the support surface 132 and the bottom surface 110 of the frame 100.

Referring to Figure 4, there is shown a schematic view of the assembly of the liquid crystal display of Figure 3. When the liquid crystal display 200 is assembled, the components such as the reflective sheet 212 and the light guide plate 214 of the backlight module 210 are slid into the frame 100 from above the first resisting portion 120, or directly the reflective sheet 212 of the backlight module 210 is guided. The components such as the light plate 214 are placed in the frame 100 such that the reflective sheet 212, the light guide plate 214 and the like of the backlight module 210 are disposed between the support surface 132 and the bottom surface 110. The light source 216 is disposed on one side of the light guide plate 214 and is also disposed between the support surface 132 and the bottom surface 110. The first flexible circuit board 218 is connected to the light source 216. The first flexible portion 130 of the frame 100 has a space 142 between the first bending portion 130 and the side blocking portion 140. The first flexible circuit board 218 of the backlight module 210 passes through the space 142 between the first bending portion 130 and the side blocking portion 140. .

Referring to FIGS. 5A and 5B, respectively, schematic diagrams showing different stages of assembly of another embodiment of a liquid crystal display to which the framework of the present invention is applied are shown. In the liquid crystal display 200, components such as the reflection sheet 212, the light guide plate 214, and the light source 216 of the backlight module 210 are disposed between the support surface 132 and the bottom surface 110 of the frame 100. The liquid crystal display 200 further includes a liquid crystal panel 220, wherein the liquid crystal panel 220 is inserted (or slid into) into the frame 100 from above the first resisting portion 120, and stops inserting after the liquid crystal panel 220 touches the second resisting portion 160. The liquid crystal panel 220. In the process of inserting the liquid crystal panel 220 into the frame 100, the liquid crystal panel 220 slides on the support surface 132, in other words, the liquid crystal panel 220 is slid under the pressing surface 152 during assembly. Move to enter the space between the pressing surface 152 and the support surface 132.

The liquid crystal display device 200 has a second flexible circuit board 222. The second flexible circuit board 222 is connected to one end of the liquid crystal panel 220. The second flexible circuit board 222 is disposed on a side of the second side 114 of the corresponding frame 100 to enable liquid crystal. When the panel 220 is assembled into the frame 100, it can smoothly slide between the support surface 132 and the pressing surface 152, and the second flexible circuit board 222 can first pass over the side blocking portion 140, and the liquid crystal panel 220 and the second resisting After the portion 160 touches the reaching position, the frame 100 is passed out from above the first bending portion 130 and/or the spacing 142, and is located between the side blocking portion 140 and the second bending portion 150 or above the supporting surface 132. .

Referring to FIG. 1 and FIG. 2 simultaneously, in a preferred embodiment, the first side 112 of the frame 100 is a first long side, the second side 114 is a first short side, and the third side 116 is a second long side. The fourth side 118 is the second short side. The first bent portion 130 and the second bent portion 150 are disposed on the second side 114 and/or the fourth side 118 of the short side, and the second side 114 is further provided with the side stop portion 140. The first resisting portion 120 is disposed on the first side 112 , and the second resisting portion 160 is disposed on the third side 116 . The height of the second resisting portion 160 is greater than the height of the first resisting portion 120 . Referring to FIG. 5 again, the backlight module 210 in the embodiment is driven by the first side 112 of the first long side between the support surface 132 and the bottom surface 110, and the liquid crystal panel 220 is also the first of the first long sides. The edge 112 slides between the support surface 132 and the pressing surface 152.

Referring to Figure 6, there is shown a schematic view of another embodiment of a liquid crystal display to which the framework of the present invention is applied. The liquid crystal display 200 further includes a tape 170 as a protective component, and the tape 170 is adhered to the liquid crystal panel 220 and the frame. 100 to fix the liquid crystal panel 220 in the frame 100. The tape 170 is adhered to the side stop portion 140 of the second side 114, the second bent portion 150 of the fourth side 118, and the liquid crystal panel 220 to fix the liquid crystal panel 220 between the tape 170 and the second resisting portion 160. The tape 170 may contact the first abutting portion 120, or the tape 170 may not contact the first abutting portion 120.

Referring to Figures 7A and 7B, there are shown schematic views of still another embodiment of a liquid crystal display to which the framework of the present invention is applied, in different states. In this embodiment, the side stops 140 and the second bent portions 150 on both sides of the first abutting portion 120 each include a lug 180. After the liquid crystal panel 220 is installed in the frame 100, the first resisting portion 120 and the lug 180 on the side stop portion 140 are folded, and the lug 180 is located above the first resisting portion 120 after being folded, and the liquid crystal panel 220 is It is located between the folded lug 180 and the second abutting portion 160, and the folded lug 180 serves as a protective element to fix the liquid crystal panel 220 in the frame 100.

Referring to Figure 8, there is shown a schematic diagram of an embodiment of a modular display module to which the framework of the present invention is applied. The combined display module 300 includes two liquid crystal displays 200a, 200b using the frame 100, wherein the first resisting portion 120 of the liquid crystal display 200a is in close contact with the second resisting portion 160 of the other liquid crystal display 200b. In other embodiments, the first resisting portion 120 of one of the liquid crystal displays 200a is in close contact with the first resisting portion 120 of the other liquid crystal display 200b when splicing.

The thickness of the first resisting portion 120 and the second resisting portion 160 is the same as the thickness of the plate material, and the thickness of the first resisting portion 120 and the second resisting portion 160 is between 0.27 mm (mm) and 0.33 mm (mm). Two liquid crystal displays 200a, The pitch of the liquid crystal panel 220 of 200b is equivalent to the thickness of the two sheets, in other words, the distance between the two liquid crystal panels 220 is between about 0.54 mm (mm) and 0.66 mm (mm). When the plurality of liquid crystal displays 200 are spliced, the combined display module 300 can closely contact the long sides of the liquid crystal display 200 with each other, since the frame 100 of the liquid crystal display 200 is the first resisting portion 120 and the second having the same thickness as the plate. Since the resisting portion 160 serves as a frame of the long side, the distance between the liquid crystal panels 220 can be effectively reduced, and the quality of the display screen can be improved.

It will be apparent from the above-described preferred embodiments of the present invention that the application of the present invention has the following advantages. The frame of the present invention is formed by bending a plate material, and the liquid crystal panel and the backlight module of the liquid crystal display can be directly assembled in the frame, and respectively pass through the first bending portion, the second bending portion, the first resisting portion, and the first The second resisting part is fixed. The first resisting portion and the second resisting portion can be regarded as the frame of the liquid crystal display, and the thickness of the frame is effectively reduced when the plurality of liquid crystal displays are spliced.

Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and it is obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Frame

110‧‧‧ bottom

112‧‧‧ first side

114‧‧‧ second side

116‧‧‧ third side

120‧‧‧First Resist

130‧‧‧First bend

132‧‧‧Support surface

140‧‧‧ Side stop

142‧‧‧ interval

150‧‧‧second bend

152‧‧‧ Pressing surface

160‧‧‧second resisting department

Claims (18)

A frame for a liquid crystal display, comprising: a bottom surface having a first side, a second side, a third side and a fourth side, the first side corresponding to the third side, the second side corresponding to a first side; a first resisting portion disposed on the first side; a first bent portion disposed on the second side, including a supporting surface parallel to the bottom surface; and a side stop portion On the second side, between the first blocking portion and the first bending portion, and the height of the side blocking portion is greater than the height of the first blocking portion. The frame of claim 1, further comprising a second bent portion disposed on the second side, wherein the first bent portion is located at the first resisting portion and the second bent portion The second bending portion further includes a pressing surface parallel to the bottom surface, and the pressing surface has a height greater than a height of the supporting surface. The frame of claim 1, further comprising a second abutting portion disposed on the third side, and the height of the second resisting portion is greater than the height of the first retaining portion. A liquid crystal display comprising: a frame as claimed in claim 1; a backlight module disposed between the support surfaces and the bottom surface; and a liquid crystal panel disposed on the support surface. The liquid crystal display of claim 4, further comprising a flexible circuit board connected to the liquid crystal panel and located above the support surface. A liquid crystal display comprising: a frame as claimed in claim 2; a backlight module disposed between the support surface and the bottom surface; and a liquid crystal panel disposed on the pressing surface and the support surface between. The liquid crystal display of claim 6, further comprising a flexible circuit board connected to the liquid crystal panel and located between the side stop and the second bent portion. A liquid crystal display comprising: a frame as claimed in claim 3; a backlight module disposed between the support surface and the bottom surface; and a liquid crystal panel disposed on the first resisting portion and the first Between the two blocks. The liquid crystal display of claim 8, further comprising a tape for adhering the side block and the liquid crystal panel, and the liquid crystal panel is located between the tape and the second baffle. The liquid crystal display of claim 8, wherein the side stop further comprises a lug, the lug is folded over the first resisting portion, and the liquid crystal panel is located at the folded lug Between the second stop. A liquid crystal display according to any one of claims 4 to 10, wherein the first resisting portion of one of the liquid crystal displays and the other liquid crystal display The first abutting portion of the first side or the second abutting portion of the third side is in close contact. The combined display module of claim 11, wherein the first resisting portions have a thickness ranging between 0.27 mm (mm) and 0.33 mm (mm). The combined display module of claim 11, wherein the distance between the liquid crystal panels of the liquid crystal displays is between 0.54 mm (mm) and 0.66 mm (mm). A method of assembling a liquid crystal display device according to claim 4, comprising: disposing the backlight module in the frame; inserting the liquid crystal panel from above the first resisting portion into the frame; The liquid crystal panel slides on the support surface. A method of assembling a liquid crystal display device according to claim 6, comprising: disposing the backlight module in the frame; inserting the liquid crystal panel from above the first resisting portion into the frame; The liquid crystal panel slides under the pressing surface. A method for assembling a liquid crystal display device according to claim 8, comprising: disposing the backlight module in the frame; inserting the liquid crystal panel from above the first resisting portion into the frame; After the liquid crystal panel touches the second stopper, the liquid crystal panel is stopped. A method of assembling a liquid crystal display device according to claim 9, comprising bonding the tape to the side stop portion and the liquid crystal panel to fix the liquid crystal panel between the adhesive tape and the second barrier portion. The method for assembling a liquid crystal display according to claim 10, comprising folding the lug of the side stop portion, wherein the folded lug is located above the first resisting portion to fix the liquid crystal panel Between the lug and the second baffle after folding.