TWI704397B - Display device - Google Patents

Abstract

The display device includes a display panel, an outer frame, a cover plate and an adhesive layer. The outer frame includes a frame body and a first protruding portion and a second protruding portion disposed opposite to the first protruding portion. The first protruding portion and the second protruding portion are coupled to the frame body, and a first distance between a first bottom surface of the first protruding portion and an upper surface of the frame body is substantially equal to a second distance between a second bottom surface of one of the second projections and the upper surface of the frame body. The cover has a lower surface. The adhesive layer is formed between the upper surface of the frame body and the lower surface of the cover to bond the cover and the outer frame.

Description

Display device

The present invention relates to a display device, and more particularly to a display device with a protrusion.

During the assembly process of the conventional display device, the cover plate is placed above the display panel and left to stand for a period of time to cure the adhesive layer between the cover plate and the display panel. During the standing process, if the cover plate cannot maintain a stable levelness, it will cause a problem that the adhesive layer and the display panel are locally stressed, which will negatively affect the display quality of the display panel. Therefore, how to maintain a stable level of the cover plate during the curing process of the adhesive layer is one of the goals of the industry in this field.

The present invention relates to a display device that can improve the aforementioned conventional problems.

An embodiment of the present invention provides a display device. The display device includes a display panel, an outer frame, a cover plate and an adhesive layer. The outer frame includes a frame body and a first protrusion portion and a second protrusion portion disposed oppositely. The first protrusion portion and the second protrusion portion are connected to the frame body, and a first bottom surface of the first protrusion portion is connected to the frame body. A first distance between an upper surface is substantially equal to a second bottom surface of the second protrusion and the frame A second distance between the upper surfaces. The cover has a lower surface. The adhesive layer is formed between the upper surface of the frame body and the lower surface of the cover plate to bond the cover plate and the outer frame.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:

10u: bearing surface

100: display device

110: display panel

110s: side

110u: display surface

120: outer frame

121: Frame

121A: First side

121B: second side

1211: The first outer frame

1211a, 161a: snap hole

1212: second outer frame

121u: upper surface

122: The first protrusion

122e: the first bottom

123: second protrusion

123e: second bottom surface

124: third protrusion

124e: third bottom surface

125: fourth protrusion

125e: fourth bottom

126: Fifth protrusion

126e: Fifth bottom surface

130: cover

130u: upper surface

140: Adhesive layer

150: backlight module

151: Locking part

150b: bottom of the module

160: inner frame

161: first inner frame

162: second inner frame

121b, 162b, 180b: lower surface

170: fixed parts

180: circuit board

D1: first distance

D2: second distance

D3: third distance

D4: Fourth distance

D5: fifth distance

D6: sixth distance

H: distance

L1, L2, L3, L4, L5: length

Figures 1 and 2 show functional block diagrams of a display device according to an embodiment of the invention.

FIG. 3 is a top view of the display device of FIG. 1. FIG.

Figure 4 is a bottom view of the display device of Figure 1.

Fig. 5 shows a cross-sectional view of the display device of Fig. 3 along the direction 5-5'.

Fig. 6 shows a cross-sectional view of the display device of Fig. 3 along the direction 6-6'.

Fig. 7 shows a cross-sectional view of the display device of Fig. 3 along the direction 7-7'.

Fig. 8 is a schematic diagram of another fixing method of the inner frame and the outer frame of Fig. 5.

Please refer to Figures 1 to 6. Figures 1 and 2 show a functional block diagram of a display device 100 according to an embodiment of the present invention. Figure 3 shows a top view of the display device 100 of Figure 1, and Figure 4 shows The bottom view of the display device 100 in FIG. 1, FIG. 5 shows a cross-sectional view of the display device 100 in FIG. 3 along the direction 5-5', and FIG. 6 shows the display device 100 in FIG. 3 along the direction 6-6' 7 is a cross-sectional view of the display device 100 of FIG. 3 along the direction 7-7'.

As shown in FIGS. 1, 2 and 5, the display device 100 includes a display panel 110, an outer frame 120, a cover 130, an adhesive layer 140, a backlight module 150, an inner frame 160, a fixing member 170, and a circuit board 180. The display device 100 can be applied to transportation tools, such as ships, vehicles (cars, buses, etc.), military transportation products, aircraft, and so on. The display panel 110 is, for example, a liquid crystal display panel.

The outer frame 120 is, for example, a metal frame, such as an iron frame, an aluminum frame, and the like. The outer frame 120 includes a frame body 121, a first protrusion 122 and a second protrusion 123 arranged oppositely, and a third protrusion 124, a fourth protrusion portion 125 and a fifth protrusion 126 arranged oppositely. In this embodiment, at least two of the frame 121, the first protrusion 122, the second protrusion 123, the third protrusion 124, the fourth protrusion 125, and the fifth protrusion 126 are integrally formed. The embodiment of the invention is not limited to this.

As shown in FIGS. 1 and 2, the first protrusion 122 and the second protrusion 123 are connected to the frame 121, and the first protrusion 122 and the second protrusion 123 protrude relative to the lower surface 121b of the frame 121. The first distance D1 (shown in Figure 5) between the first bottom surface 122e of the first protrusion 122 and the upper surface 121u of the frame 121 is substantially equal to the second bottom surface 123e of the second protrusion 123 and the frame 121 The second distance D2 between the upper surfaces 121u (shown in Figure 7). When the first bottom surface 122e of the first protrusion 122 and the second bottom surface 123e of the second protrusion 123 abut on the carrying surface 10u (shown in Figures 5, 6 and 7), the upper surface 121u and the carrying surface 10u It is substantially parallel, so that the upper surface 130u of the cover 130 is substantially horizontal. In this way, no tool is needed during the curing process of the adhesive layer 140, and the display device 100 is directly placed on the supporting surface 10u, and the upper surface 130u of the cover 130 can be substantially horizontal. In addition, the aforementioned bearing surface 10u For example, it is a desktop, a ground, or other surfaces capable of supporting the display device 100, such as a horizontal surface. In addition, the cover 130 is, for example, a light-transmitting cover, such as a plastic cover or a glass cover, which is used to protect the components below, such as the display panel 110.

During the assembling process of the display device 100, the display device 100 can be placed on the supporting surface 10u for a period of time to wait for the adhesive layer 140 to solidify. The adhesive layer 140 fully fits the space between the cover 130 and the display panel 110, so the display device 100 can provide excellent shock resistance, so that the display device 100 can be used in harsh environments, such as boats or other operations. Products that produce vibrations. The adhesive layer 140 is, for example, a water glue, so it needs a long standing time to cure it, such as 24 hours. Since the upper surface 130u of the cover plate 130 is in a stable horizontal state, the cover plate 130 will not be excessively inclined even if it is left standing for a long time. During the standing process, the upper surface 130u of the cover 130 maintains a stable level, so the force distribution of the cover 130 acting on the adhesive layer 140 is more even, so that the force distribution of the display panel 110 is also more even (compared to 130 is arranged obliquely). In this way, the liquid crystal molecules in the display panel 110 will not be twisted due to excessive force locally. If the liquid crystal molecules in the display panel 110 are partially stressed and twisted, when the light from the backlight module 150 passes through the display panel 110 unexpectedly, an abnormal phenomenon such as pressure mura may occur in the display screen. On the other hand, the force of the display panel 110 of the embodiment of the present invention is relatively uniform, and therefore, it is not prone to abnormal images.

As shown in Figure 4, the first protrusion 122 (drawn in cross-section) and the second protrusion 123 (drawn in cross-section) are arranged diagonally adjacent to one of the outer frame 120, so that the display device 100 can be stably placed on the carrying surface Above 10u, however, the embodiment of the present invention is not limited thereto. As shown in Figures 1 and 2, the frame 121 includes a first side portion arranged in parallel 121A and the second side 121B. In another embodiment, the first protrusion 122 can be connected to the first side 121A and protrude relative to the lower surface 121b of the first side 121A, and the second protrusion 123 can be connected to the second side 121B And protrude from the lower surface 121b of the second side portion 121B. The embodiment of the present invention does not limit the relative arrangement of the first protrusion 122 and the second protrusion 123, as long as the display device 100 can be stably placed on the carrying surface 10u through at least two protrusions.

As shown in FIGS. 1 and 2, the third protrusion 124 and the fourth protrusion 125 are connected to the frame 121, and the third protrusion 124 and the fourth protrusion 125 protrude relative to the lower surface 121b of the frame 121. And the third distance D3 (shown in Figure 6) between the third bottom surface 124e of the third protrusion 124 and the upper surface 121u of the frame 121 is substantially equal to the fourth bottom surface 125e of the fourth protrusion 125 and the frame The fourth distance D4 between the upper surfaces 121u of 121 (shown in Figure 5). The third distance D3, the fourth distance D4, the first distance D1 and the second distance D2 are substantially equal. In this way, when the first bottom surface 122e of the first protrusion 122, the second bottom surface 123e of the second protrusion 123, the third bottom surface 124e of the third protrusion 124, and the fourth bottom surface 125e of the fourth protrusion 125 abut on the carrier When it is on the surface 10u, the upper surface 130u of the cover plate 130 is substantially parallel to the carrying surface 10u, so that the upper surface 130u of the cover plate 130 is substantially horizontal. In this way, the curing process of the adhesive layer 140 does not require a tool, and the display device 100 is directly placed on the supporting surface 10u, and the upper surface 130u of the cover 130 can be substantially horizontal.

As shown in Figure 4, the third protrusion 124 (drawn in cross-section) and the fourth protrusion 125 (drawn in cross-section) are respectively disposed adjacent to one of the corners of the outer frame 120, so that the display device 100 can be stably placed on the carrying surface 10u, but the embodiment of the present invention does not use This is limited. As shown in FIGS. 1 and 2, the frame 121 includes a first side 121A and a second side 121B arranged in parallel. In another embodiment, the third protrusion 124 may be connected to the first side 121A and protrude relative to the lower surface 121b of the first side 121A, and the fourth protrusion 125 may be connected to the second side 121B And protrude from the lower surface 121b of the second side portion 121B. The embodiment of the present invention does not limit the relative arrangement of the third protrusion 124 and the fourth protrusion 125, as long as the display device 100 can be stably placed on the carrying surface 10u through at least two protrusions.

Although four protrusions are used as an example in this embodiment, in another embodiment, the number of protrusions can be two, three, five or more. In addition, the first protrusion 122, the second protrusion 123, the third protrusion 124, and the fourth protrusion 125 are separately arranged. In this way, the separately arranged several protrusions constitute a large area of support, allowing the display device 100 The support through these protrusions can be more stably placed on the bearing surface 10u.

In addition, as shown in Figures 1 and 2, the first protrusion 122, the second protrusion 123, the third protrusion 124, and the fourth protrusion 125 of the embodiment of the present invention are located on the outermost side of the outer frame 120 and are separated from each other. The display panel 110 is at a distance. In this way, the force exerted by the cover plate 130 is evenly extended to the several protrusions as far as possible, which can reduce the force of the display panel 110 and make the overall force of the display panel 110 more uniform.

As shown in Figure 5, the display panel 110 has a side surface 110s and a display surface 110u. The frame body 121 includes a first outer frame body 1211 and a second outer frame body 1212 that are connected. The first outer frame body 1211 surrounds the side surface 110s and has On the aforementioned lower surface 121b, the second outer frame body 1212 surrounds the display surface 110u and has the aforementioned upper surface 121u. As in section 5 As shown in the figure, the first protrusion 122 is connected to the first outer frame 1211 and protrudes downward relative to the lower surface 121b of the first outer frame 1211. Similarly, the second protrusion 123 (shown in FIG. 7) is connected to the first outer frame 1211 (not marked in FIG. 7 due to the viewing angle) and protrudes downward relative to the lower surface 121b of the first outer frame 1211.

As shown in FIG. 5, the backlight module 150 has a module bottom surface 150b. The inner frame 160 includes a first inner frame 161 and a second inner frame 162 that are connected, the first inner frame 161 is located between the backlight module 150 and the first outer frame 1211, and the first inner frame 161 and the second An outer frame body 1211 is disposed opposite to each other, and a second inner frame body 162 is disposed opposite to the bottom surface 150b of the module. The distance H between the lower surface 162b of the second inner frame body 162 and the upper surface 121u of the second outer frame body 1212 is smaller than the first distance D1. In this way, when the display device 100 is placed on the bearing surface 10u, the inner frame 160 will not contact the bearing surface 10u, so that the inner frame 160 can be prevented from being worn by the bearing surface 10u. In addition, the inner frame 160 is, for example, a metal frame, such as an iron frame, an aluminum frame, or the like.

As shown in FIG. 5, the circuit board 180 is disposed on the lower surface 162b of the inner frame 160. The fifth distance D5 between the lower surface 180b of the circuit board 180 and the upper surface 121u of the frame 121 is smaller than the first distance D1 and the second distance D2 (shown in FIG. 7). In this way, when the display device 100 is placed on the carrying surface 10u, the circuit board 180 will not be pressed against the carrying surface 10u, so that it can be prevented from being crushed.

In addition, as shown in FIG. 2, the length L5 of the fifth protrusion 126 is greater than the length L1 of the first protrusion 122, the length L2 of the second protrusion 123, the length L3 of the third protrusion 124, and the fourth protrusion 125 The length L4 of the fifth protrusion 126 is close to the length of the circuit board 180, and the length L1 of the first protrusion 122 is The length L2 of the second protrusion 123, the length L3 of the third protrusion 124 and the length L4 of the fourth protrusion 125 are all smaller than the length of the circuit board 180. The fifth protrusion 126 of the outer frame 120 and the circuit board 180 are located on the same side of the outer frame 120, and the sixth distance D6 between the fifth bottom surface 126e of the fifth protrusion 126 and the upper surface 121u of the frame 121 (shown in FIG. 7) is substantially equal to or less than the first distance D1 between the first bottom surface 122e of the first protrusion 122 and the upper surface 121u of the frame 121 (shown in FIG. 5). If the first protrusion 122, the second protrusion 123, the third protrusion 124, and the fourth protrusion 125 are omitted, when the display device 100 is placed on the carrying surface 10u, the fifth bottom surface 126e of the fifth protrusion 126 (drawing (Shown in FIG. 7) is abutted on the supporting surface 10u and the display device 100 is inclined downwardly away from the fifth protrusion 126. As a result, the slanted cover 130 exerts uneven force on the display panel 110 instead. However, due to the arrangement of the first protrusion 122, the second protrusion 123, the third protrusion 124, and the fourth protrusion 125 in the embodiment of the present invention, the aforementioned problems can be effectively improved.

As shown in FIGS. 6 and 7, the fixing member 170 penetrates the first outer frame body 1211 and is fixed in the first inner frame body 162 to fix the relative position between the outer frame 120 and the inner frame 160. In the embodiment, the fixing member 170 is, for example, a threaded element. The first inner frame 162 has, for example, an internal thread, so that the fixing member 170 can be screwed to the internal thread. In an embodiment, the first inner frame body 162 may include at least one nut, and the nut has the aforementioned internal thread, so that the fixing member 170 can be screwed to the internal thread of the nut. In addition, the number of the fixing member 170 may be multiple.

Please refer to FIG. 8, which is a schematic diagram of another fixing method of the inner frame 160 and the outer frame 120 in FIG. 5. The backlight module 150 includes at least one engaging portion 151, The engaging portion 151 passes through the engaging hole 1211 a of the first outer frame body 1211 and the engaging hole 161 a of the first inner frame body 161 to fix the relative position between the outer frame 120 and the inner frame 160. In another embodiment, the first inner frame body 161 may have a similar engaging portion to be engaged with the engaging hole 1211a of the first outer frame body 1211, which can also fix the gap between the outer frame 120 and the inner frame 160 relative position. In other embodiments, the first outer frame body 1211 may have a similar engaging portion to be engaged with the engaging hole 161a of the first inner frame body 161, which can also fix the relative relationship between the outer frame 120 and the inner frame 160. position.

In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

100: display device

120: outer frame

121B: second side

122: The first protrusion

123: second protrusion

124: third protrusion

125: fourth protrusion

126: Fifth protrusion

130: cover

121b: lower surface

L1, L2, L3, L4, L5: length

Claims (11)

A display device includes: a display panel; an outer frame, including a frame, and a first protrusion and a second protrusion that are arranged oppositely, the first protrusion and the second protrusion are connected to the frame , And a first distance between a first bottom surface of the first protrusion and an upper surface of the frame is substantially equal to between a second bottom surface of the second protrusion and the upper surface of the frame A second distance; a cover plate having a lower surface; and an adhesive layer formed between the upper surface of the frame and the lower surface of the cover plate to bond the cover plate and the outer frame, wherein When the first bottom surface of the first protrusion and the second bottom surface of the second protrusion abut on a bearing surface, the upper surface and the bearing surface are substantially parallel, making an upper surface of the cover plate It is essentially horizontal. As for the display device described in item 1 of the scope of patent application, the first protrusion and the second protrusion are respectively located at a diagonal corner of the outer frame. As for the display device described in claim 1, wherein the frame body includes a first side portion and a second side portion arranged in parallel, and the first protruding portion and the second protruding portion are respectively located on the first side Section and the second side section. The display device described in item 1 of the scope of patent application, wherein the display panel has a side surface and a display surface, the frame includes a first outer frame and a second outer frame connected to each other, the first outer frame The frame surrounds the side surface, and the second outer frame ring It surrounds the display surface and has the upper surface; the first protrusion and the second protrusion are connected to the first outer frame and protrude downward relative to a lower surface of the first outer frame. As described in item 4 of the scope of patent application, the display device further includes: a backlight module having a bottom surface of the module; and an inner frame including a first inner frame body and a second inner frame body connected, The first inner frame is located between the backlight module and the first outer frame, and the first inner frame is arranged opposite to the first outer frame, and the second inner frame is arranged opposite to the bottom surface of the module Wherein, a distance between the lower surface of the second inner frame and the upper surface of the second outer frame is smaller than the first distance. The display device described in item 5 of the scope of patent application further includes: a fixing member that passes through the first outer frame and is fixed in the first inner frame to fix between the outer frame and the inner frame Relative position. According to the display device described in item 5 of the scope of patent application, the backlight module includes an engaging portion that passes through the first outer frame and the first inner frame to fix the outer frame and the first inner frame. The relative position between the inner frames. As for the display device described in claim 1, wherein the outer frame further includes a third protruding portion and a fourth protruding portion disposed oppositely, and the third protruding portion and the fourth protruding portion are connected to the frame body , And a third distance between a third bottom surface of the third protrusion and the upper surface of the frame is substantially equal to between a fourth bottom surface of the fourth protrusion and the upper surface of the frame A fourth distance; wherein, the first protrusion, the second protrusion, the third protrusion and the fourth protrusion are arranged separately. The display device described in item 1 of the scope of patent application further includes: an inner frame having a lower surface; and a circuit board disposed on the lower surface of the inner frame; wherein a lower surface of the circuit board and the frame A fifth distance between the upper surface of the body is smaller than the first distance and the second distance. As for the display device described in item 1 of the scope of patent application, the frame, the first protrusion, and the second protrusion are integrally formed. A display device includes: a display panel; an outer frame, including a frame, and a first protrusion and a second protrusion that are arranged oppositely, the first protrusion and the second protrusion are connected to the frame , And a first distance between a first bottom surface of the first protrusion and an upper surface of the frame is substantially equal to between a second bottom surface of the second protrusion and the upper surface of the frame A second distance; a cover plate having a lower surface; and an adhesive layer formed between the upper surface of the frame and the lower surface of the cover plate to bond the cover plate and the outer frame, wherein The display panel has a side surface and a display surface. The frame body includes a first outer frame body and a second outer frame body connected to each other. The first outer frame body surrounds the side surface, and the second outer frame body surrounds the The display surface has the upper surface; the first protrusion and the second protrusion are connected to the first outer frame and protrude downward relative to a lower surface of the first outer frame.

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