TWI741309B - Display apparatus - Google Patents

Abstract

A display apparatus includes an upper housing, a lower housing, a panel module, a flexible circuit board, and a fixing member. The lower housing and the upper housing form a space. The panel module is in the space. The flexible circuit board has a first end and a second end. The first end is connected to the panel module. The second end is outside the space and stacked with the lower housing. The fixing member is outside the space and covers the flexible circuit board. The fixing member includes two fixing portions and a plurality of connecting portions. The fixing portions are respectively fixed to the upper and lower housings. The connecting portions are connected between the fixing portions and spaced apart from each other. Each of the connecting portions has an edge. A length of the edge is greater than a shortest distance between two ends of the edge.

Description

Display device

The present invention relates to a display device.

In recent years, due to the rapid development of the electronics and information industries, related products have become increasingly sophisticated. Take liquid crystal display as an example. It has the advantages of high image quality, small size, light weight, low voltage drive, low power consumption and wide application range, so it is widely used in portable TVs, mobile phones, camcorders , Notebook computers, desktop monitors and other consumer electronic products, have become the mainstream of displays.

Generally speaking, when assembling the display device, the flexible circuit board connected to the panel module is reflexed to the outer surface of the lower casing through the gap between the upper casing and the lower casing. In addition, in order to fix the flexible circuit board and reduce the electromagnetic interference (EMI) of the upper casing, a method of sticking a metal sheet from the upper casing to the lower casing and covering the flexible circuit board is usually used. However, due to the small gap between the upper casing and the lower casing, it is easy to deform the upper casing and compress the flexible circuit board during the process of pasting the metal sheet, and the compressed flexible circuit board will pull the panel module and cause Make the chip on it (ie COG) leak light (ie Mura).

Therefore, how to propose a display device that can solve the above-mentioned problems is one of the problems that the industry urgently wants to invest in research and development resources to solve.

In view of this, one objective of the present invention is to provide a display device that can effectively solve the aforementioned problems.

In order to achieve the above objective, according to one embodiment of the present invention, a display device includes a lower casing, an upper casing, a panel module, a flexible circuit board and a fixing element. The upper shell and the lower shell jointly form a space. The panel module is located in the space. The flexible circuit board has a first end and a second end. The first end is connected to the panel module. The second end is located outside the space and overlaps the lower casing. The fixing element is located outside the space and covers the flexible circuit board. The fixing element includes two fixing parts and a plurality of connecting parts. The fixing parts are respectively fixed to the upper casing and the lower casing. The connecting part is connected between the two fixing parts and separated from each other. Each connecting part has an edge. The length of this edge is greater than the shortest distance between the two ends of this edge.

In one or more embodiments of the present invention, the shape of one of the connecting portions is substantially V-shaped.

In one or more embodiments of the present invention, the one of the connecting portions includes two connected connecting sections, and the included angle formed by the two connecting sections when they are flat is greater than 0 degrees and less than 180 degrees.

In one or more embodiments of the present invention, the shape of one of the connecting portions is substantially U-shaped.

In one or more embodiments of the present invention, the edge of the connecting portion has an arc profile.

In one or more embodiments of the present invention, one of the connecting portions includes three connecting segments connected in sequence. Any two of the three connecting sections are leveling When forming an obtuse angle.

In one or more embodiments of the present invention, the shape of one of the connecting portions is substantially Z-shaped.

In one or more embodiments of the present invention, the shapes of the two connecting portions are substantially the same in one direction.

In one or more embodiments of the present invention, the shapes of two of the connecting portions are substantially symmetrical in one direction.

In one or more embodiments of the present invention, the fixing element includes a conductive material.

In summary, in the display device of the present invention, the fixing element includes a connecting portion with a special structure connected between the two fixing portions, so that the distance between the two fixing portions can be adjusted by the action of the connecting portion. Therefore, when the flexible circuit board is fixed by the fixing element and the electromagnetic interference of the upper casing is reduced, the fixing element that can stretch and deform can effectively avoid the deformation of the upper casing and press the flexible circuit board when fixing, thereby avoiding the flexible circuit board The chip on the panel module causes light leakage due to pulling the panel module.

The above description is only used to illustrate the problem to be solved by the present invention, the technical means to solve the problem, and the effects produced by it, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

100‧‧‧Display device

110‧‧‧Backlight Module

111‧‧‧Lower shell

111a‧‧‧Snap part

112‧‧‧Light Guide Plate

113‧‧‧Reflective sheet

114‧‧‧Optical Film

120‧‧‧Panel Module

121‧‧‧Color filter substrate

122‧‧‧Thin Film Transistor Substrate

123、124‧‧‧Polarizer

130‧‧‧Plastic frame

131‧‧‧Kago

132‧‧‧Carrier Department

140‧‧‧Upper shell

150‧‧‧Flexible circuit board

151‧‧‧First end

152‧‧‧Second end

160, 160’, 160”, 260, 260’, 260”, 360, 360’, 360”, 460, 460’‧‧‧Fixing elements

161‧‧‧Fixed part

162, 162’, 262, 262’, 362, 362’, 462, 462’‧‧‧Connecting part

162a, 162b, 362a, 362b, 362c, 462a, 462b, 462c‧‧‧Connecting section

D‧‧‧shortest distance

E‧‧‧Edge

E1, E2‧‧‧end

S‧‧‧Space

θ‧‧‧Included angle

θ 1, θ 2‧‧‧ Obtuse angle

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: Figure 1 is a cross-sectional view of a display device according to an embodiment of the present invention intention.

Fig. 2A is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 2B is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 2C is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 3A is a schematic diagram showing a fixing element according to an embodiment of the present invention.

FIG. 3B is a schematic diagram showing a fixing element according to an embodiment of the present invention.

FIG. 3C is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 4A is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 4B is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 4C is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 5A is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Fig. 5B is a schematic diagram showing a fixing element according to an embodiment of the present invention.

Hereinafter, a plurality of embodiments of the present invention will be disclosed in drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some conventionally used structures and elements are shown in a simple schematic manner in the drawings, and the same elements in different embodiments are labeled with the same element symbols.

Please refer to FIG. 1, which is a schematic cross-sectional view of a display device 100 according to an embodiment of the present invention. As shown in FIG. 1, in this embodiment, the display device 100 mainly includes a backlight module 110, a panel module 120, a plastic frame 130, an upper casing 140, a flexible circuit board 150 and a fixing element 160. The backlight module 110 includes a light source (not shown), a lower housing 111, a light guide plate 112, a reflective sheet 113, and an optical film 114. The upper shell 140 and the lower shell 111 jointly form a space S. The backlight module 110, the panel module 120 and the plastic frame 130 are located in the space S. The outer wall of the plastic frame 130 is combined with the inner wall of the lower housing 111 (for example, the hook 131 of the plastic frame 130 is engaged with the buckle portion 111a of the lower housing 111). The plastic frame 130 surrounds the panel module 120 and the backlight module 110. The light guide plate 112 is disposed on the reflective sheet 113, and the lower casing 111 carries the reflective sheet 113 from below. The light source can be arranged on the lower casing 111 and abut against the side of the light guide plate 112.

The light source of the backlight module 110 may be a cold cathode tube (CCFL) or a light emitting diode (LED), but it is not limited thereto. The optical film 114 of the backlight module 110 may include film layers such as a diffusion film, a brightness enhancement film, and a rhombohedral mirror layer, and is disposed on the light guide plate 112. The plastic frame 130 further includes a carrying portion 132. The bearing portion 132 is configured to bear The panel module 120 is mounted and fixed (for example, through an adhesive layer) below the outer edge of the panel module 120 so that the panel module 120 is located above the backlight module 110. The panel module 120 includes a color filter substrate 121, a thin film transistor substrate 122 and polarizers 123 and 124. The color filter substrate 121 and the thin film transistor substrate 122 are attached to each other. The polarizer 123 is attached to the top of the color filter substrate 121. The polarizer 124 is attached to the bottom of the thin film transistor substrate 122. Thereby, the light source of the backlight module 110 can emit light into the light guide plate 112, and is reflected by the reflective sheet 113 to sequentially pass through the optical film 114, the polarizer 124, the thin film transistor substrate 122, and the color filter substrate 121 And the polarizer 123 leaves the panel module 120 to achieve the function of viewing by the user.

The flexible circuit board 150 has a first end 151 and a second end 152. The first end 151 of the flexible circuit board 150 is connected to the upper surface of the thin film transistor substrate 122 of the panel module 120. The flexible circuit board 150 extends from the first end 151, passes through the plastic frame 130 and the lower casing 111 in sequence, and extends to the gap between the upper casing 140 and the lower casing 111. The second end 152 of the flexible circuit board 150 is located outside the space S (that is, exposed by the gap between the upper casing 140 and the lower casing 111) and overlaps the lower casing 111. The fixing element 160 is located outside the space S and is fixed to the upper housing 140 and the lower housing 111. By covering the flexible circuit board 150, the fixing element 160 can fix the second end 152 of the flexible circuit board 150 to the lower casing 111. In some embodiments, the fixing element 160 completely covers the part of the flexible circuit board 150 stacked on the outer surface of the lower housing 111.

In some embodiments, both the upper housing 140 and the lower housing 111 are made of metal materials, and the fixing element 160 includes conductive materials. Thereby, the fixing element 160 can ground the upper housing 140 to the lower housing 111, thereby effectively lowering the upper housing Electromagnetic Interference (EMI) of the housing 140. In some embodiments, the fixing element 160 is aluminum foil or copper foil, but the invention is not limited to this.

Please refer to FIG. 2A, which is a schematic diagram illustrating a fixing element 160 according to an embodiment of the present invention. As shown in FIG. 1 and FIG. 2A, in this embodiment, the fixing element 160 includes two fixing portions 161 and a plurality of connecting portions 162. The connecting portion 162 is connected between the two fixing portions 161 and separated from each other. Each connecting portion 162 has an edge E. The length of the edge E is greater than the shortest distance D between the two ends E1 and E2 of the edge E. With this configuration, the distance between the two fixing parts 161 can be adjusted by the action of the connecting part 162.

For example, the aforementioned action of the connecting portion 162 is the twisting of the connecting portion 162. When the connecting portion 162 is flattened as a whole, the shortest distance D between the two ends E1 and E2 of the edge E is the shortest. When the connecting portion 162 is twisted so that the edge E of the connecting portion 162 tends to be flattened, the shortest distance D between the two ends E1 and E2 of the edge E will have the effect of becoming longer. In other words, the fixing element 160 of this embodiment has the ability to stretch and deform, so when the fixing element 160 is fixed, the upper housing 140 can be effectively prevented from being deformed and pressed against the flexible circuit board 150, thereby preventing the flexible circuit board 150 from being pulled. The panel module 120 causes light leakage from the chips on it. Not only that, the fixing element 160 with telescopic deformation capability can also increase the allowable error of the assembler during attachment.

As shown in Figure 2A, in this embodiment, the connecting portion 162 is located on the outer surface of the upper housing 140, so that dust can be prevented from directly entering between the upper housing 140 and the lower housing 111, but the present invention does not Limited by this. In some other embodiments, the connecting portion 162 may further extend to the upper shell 140 and the lower shell The junction of the body 111 or further extends to the outer surface of the lower housing 111 and covers the flexible circuit board 150.

As shown in FIG. 2A, in this embodiment, the shape of each connecting portion 162 is substantially V-shaped. Specifically, each connecting portion 162 includes two connecting segments 162a, 162b, and the included angle θ formed by the two connecting segments 162a, 162b when they are flat is greater than 0 degrees and less than 180 degrees. In some embodiments, the included angle θ formed by the two connecting sections 162a and 162b when they are flattened is an acute angle, so that the connecting portion 162 can adjust the shortest distance D between the two ends E1 and E2 of the edge E during operation to a larger range. . In practical applications, the angle θ formed by the connecting sections 162a and 162b of the different connecting portions 162 can be different when they are flat.

The shapes of any two connecting portions 162 in Figure 2A are substantially the same in one direction (for example, upward and downward in Figure 2A). In other words, the connecting portions 162 in Figure 2A are all bent downward, but the present invention is not limited to this.

Please refer to Figure 2B and Figure 2C. Fig. 2B is a schematic diagram showing a fixing element 160' according to an embodiment of the present invention. Figure 2C is a schematic diagram showing a fixing element 160" according to an embodiment of the present invention.

As shown in Figure 2B, the difference between the fixing element 160' of this embodiment and the embodiment shown in Fig. 2A is that the fixing element 160' of this embodiment includes a plurality of connecting portions 162, 162', wherein The connecting portion 162' is arranged in the upper half, and the connecting portion 162 is arranged in the lower half, but the fixing element 160' of this embodiment can also provide the same or similar functions as the fixing element 160. In particular, any connecting portion 162 and any connecting portion 162' are substantially symmetrical in one direction (e.g., upward and downward in Figure 2B).

As shown in Figure 2C, the fixing element 160" of this embodiment is The difference from the embodiment shown in Figure 2A is that the fixing element 160" of this embodiment includes a plurality of connecting portions 162, 162', wherein the connecting portion 162 is arranged in the upper half, and the connecting portion 162' is arranged in The bottom half, but the fixing element 160" of this embodiment can also provide the same or similar functions as the fixing element 160. In practical applications, the connecting portions 162, 162' can also be arranged alternately.

Please refer to FIG. 3A, which is a schematic diagram illustrating a fixing element 260 according to an embodiment of the present invention. The difference between the fixing element 260 of this embodiment and the embodiment shown in FIG. 2A is that the shape of the plurality of connecting portions 262 included in the fixing element 260 of this embodiment is substantially U-shaped, but this embodiment The fixing element 260 in this way can also provide the same or similar function as the fixing element 160. Specifically, the edge E of each connecting portion 262 has an arc profile. In addition, the shapes of any two connecting portions 262 are substantially the same in one direction (for example, upward and downward in Figure 3A). In other words, the connecting portions 262 in FIG. 3A are all bent downward, but the present invention is not limited to this.

Please refer to Figure 3B and Figure 3C. Figure 3B is a schematic diagram showing a fixing element 260' according to an embodiment of the present invention. FIG. 3C is a schematic diagram showing a fixing element 260" according to an embodiment of the present invention.

As shown in Figure 3B, the difference between the fixing element 260' of this embodiment and the embodiment shown in Fig. 3A is that the fixing element 260' of this embodiment includes a plurality of connecting portions 262, 262', wherein The connecting portion 262 ′ is arranged in the upper half, and the connecting portion 262 is arranged in the lower half. However, the fixing element 260 ′ of this embodiment can also provide the same or similar functions as the fixing element 260. In particular, any connecting portion 262 and any connecting portion 262' are substantially symmetrical in one direction (e.g., the upper and lower sides in Figure 3B).

As shown in Figure 3C, the difference between the fixing element 260" of this embodiment and the embodiment shown in Fig. 3A is that the fixing element 260" of this embodiment includes a plurality of connecting portions 262, 262', wherein The connecting portion 262 is arranged in the upper half, and the connecting portion 262' is arranged in the lower half, but the fixing element 260" of this embodiment can also provide the same or similar functions as the fixing element 260. In practical applications, the connecting portion 262 , 262' can also be arranged alternately.

Please refer to FIG. 4A, which is a schematic diagram illustrating a fixing element 360 according to an embodiment of the present invention. The difference between the fixing element 360 of this embodiment and the embodiment shown in FIG. 2A is that the shape of the plurality of connecting portions 362 included in the fixing element 360 of this embodiment is substantially U-shaped, but this embodiment The fixing element 360 in this way can also provide the same or similar function as the fixing element 160. Specifically, each connecting portion 362 includes three connecting segments 362a, 362b, and 362c connected in sequence. The connecting sections 362a and 362b form an obtuse angle θ1 when they are flat, and the connecting sections 362b and 362c form an obtuse angle θ2 when they are flat. In addition, the shapes of any two connecting portions 362 are substantially the same in one direction (for example, upward and downward in Figure 4A). In other words, the connecting portions 362 in Figure 4A are all bent downward, but the present invention is not limited to this.

Please refer to Figure 4B and Figure 4C. Fig. 4B is a schematic diagram showing a fixing element 360' according to an embodiment of the present invention. FIG. 4C is a schematic diagram showing a fixing element 360" according to an embodiment of the present invention.

As shown in Figure 4B, the difference between the fixing element 360' of this embodiment and the embodiment shown in Fig. 4A is that the fixing element 360' of this embodiment includes a plurality of connecting portions 362, 362', wherein The connecting portion 362 is arranged in the upper half, and the connecting portion 362' is arranged in the lower half, but the fixing of this embodiment The element 360' can also provide the same or similar functions as the fixing element 360. In particular, any connecting portion 362 and any connecting portion 362' are substantially symmetrical in one direction (for example, the upper and lower sides in Figure 4B).

As shown in Figure 4C, the difference between the fixing element 360" of this embodiment and the embodiment shown in Fig. 4A is that the fixing element 360" of this embodiment includes a plurality of connecting portions 362, 362', wherein The connecting portion 362' is arranged in the upper half, and the connecting portion 362 is arranged in the lower half, but the fixing element 360" of this embodiment can also provide the same or similar functions as the fixing element 360. In practical applications, the connecting portion 362 , 362' can also be arranged alternately.

Please refer to FIG. 5A, which is a schematic diagram illustrating a fixing element 460 according to an embodiment of the present invention. The difference between the fixing element 460 of this embodiment and the embodiment shown in FIG. 2A is that the shape of the plurality of connecting portions 462 included in the fixing element 460 of this embodiment is substantially Z-shaped, but this embodiment The fixing element 460 in this manner can also provide the same or similar functions as the fixing element 160. Specifically, each connecting portion 462 includes three connecting segments 462a, 462b, and 462c connected in sequence. In addition, the shapes of any two connecting portions 462 are substantially the same in one direction (for example, upward and downward in Figure 5A). In other words, the two ends E1 and E2 of the edge E of the connecting portion 462 in FIG. 5A are low in the left and high in the right, but the present invention is not limited to this.

Please refer to FIG. 5B, which is a schematic diagram illustrating a fixing element 460' according to an embodiment of the present invention.

As shown in Figure 5B, the difference between the fixing element 460' of this embodiment and the embodiment shown in Fig. 5A is that the fixing element 460' of this embodiment includes a plurality of connecting portions 462, 462', wherein Connection part 462 arrangement In the upper half, and the connecting portion 462' is arranged in the lower half, but the fixing element 460' of this embodiment can also provide the same or similar functions as the fixing element 460. In particular, any connecting portion 462 and any connecting portion 462' are substantially symmetrical in one direction (for example, the upper and lower sides in Figure 4B). In practical applications, the connecting portions 462, 462' can also be arranged alternately.

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that in the display device of the present invention, the fixing element includes a connecting portion with a special structure connected between the two fixing portions, so that between the two fixing portions The distance can be adjusted by the action of the connecting part. Therefore, when the flexible circuit board is fixed by the fixing element and the electromagnetic interference of the upper casing is reduced, the fixing element that can stretch and deform can effectively avoid the deformation of the upper casing and press the flexible circuit board when fixing, thereby avoiding the flexible circuit board The chip on the panel module causes light leakage due to pulling the panel module.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the scope of the attached patent application.

100‧‧‧Display device

110‧‧‧Backlight Module

111‧‧‧Lower shell

111a‧‧‧Snap part

112‧‧‧Light Guide Plate

113‧‧‧Reflective sheet

114‧‧‧Optical Film

120‧‧‧Panel Module

121‧‧‧Color filter substrate

122‧‧‧Thin Film Transistor Substrate

123、124‧‧‧Polarizer

130‧‧‧Plastic frame

131‧‧‧Kago

132‧‧‧Carrier Department

140‧‧‧Upper shell

150‧‧‧Flexible circuit board

151‧‧‧First end

152‧‧‧Second end

160‧‧‧Fixed components

161‧‧‧Fixed part

162‧‧‧Connecting part

S‧‧‧Space

Claims (10)

A display device includes: a lower casing; an upper casing forming a space together with the lower casing; a panel module located in the space; a flexible circuit board having a first end and a second end , The first end is connected to the panel module, the second end is located outside the space and overlaps the lower casing; and a fixing element is located outside the space and covers the flexible circuit board, the fixing element includes: two The fixing parts are respectively fixed to the upper shell and the lower shell; and a plurality of connecting parts connected between the two fixing parts and separated from each other, wherein each of the connecting parts has an edge, and the length of the edge It is greater than one of the shortest distances between the two ends of the edge. The display device according to claim 1, wherein the shape of one of the connecting parts is substantially V-shaped. The display device according to claim 2, wherein the one of the connecting portions includes two connected connecting sections, and an included angle formed by the two connecting sections when they are flat is greater than 0 degrees and less than 180 degrees. The display device according to claim 1, wherein these The shape of one of the connecting portions is substantially U-shaped. The display device according to claim 4, wherein the edge of the one of the connecting parts has an arc profile. The display device according to claim 4, wherein the one of the connecting portions includes three connecting segments connected in sequence, and any two of the three connecting segments form an obtuse angle when flat. The display device according to claim 1, wherein the shape of one of the connecting portions is substantially Z-shaped. The display device according to claim 1, wherein the shapes of two of the connecting portions are substantially the same in one direction. The display device according to claim 1, wherein the shapes of two of the connecting portions are substantially symmetrical in one direction. The display device according to claim 1, wherein the fixing element includes a conductive material.

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