TWI509314B - Display device - Google Patents

Description

Display device

The present invention relates to a display device.

Referring to FIG. 1 , the conventional display device 200 generally supports the liquid crystal panel 204 by using a white plastic frame 202. The white plastic frame 202 can be used as a buffer material, and the brightness of the periphery of the screen can be improved by the light reflection property of the white material. . However, if the white plastic frame 202 is applied to a narrow bezel display device, since the optical film 206 must reserve an expansion space to avoid interference with the white plastic frame 202, part of the light I emitted by the light source 208 is blocked by the white plastic frame 202. The side reflection is carried out by the gap between the optical film 206 and the white plastic frame 202, causing a problem of bright lines on the side of the picture. As shown in FIG. 1 , in order to avoid this problem, the side of the white plastic frame 202 facing the light source 208 will be blackened to avoid the occurrence of bright lines on the side. However, this method not only takes time, but it is impossible to apply black unevenness. Achieving the shading effect results in poor stability of the finished product. As shown in FIG. 2, in another conventional display device 200a, the existing film tape 210 above the white plastic frame 202 can be directly extended over the gap between the optical film 206 and the white plastic frame 202 to The light reflected by the white plastic frame 202 is blocked. However, this method is easy to interfere with the lower polarizer 212 of the liquid crystal panel 204 due to the attachment offset of the film tape 210, causing a problem of display embossing, and if the gap between the film tape 210 and the lower polarizer 212 is too large, light leakage may be formed. . As shown in FIG. 3, in another conventional display device 200b, a light shielding tape 214 may be attached to the bottom side of the liquid crystal panel 204 to block the light reflected by the white plastic frame 202. However, this method is also easy to attach. The offset creates a pattern and a problem of light leakage due to excessive gaps.

Taiwan Patent Publication No. TWI357525 discloses a frame constructed of a highly reflective plastic material, and the frame can also be formed with a black material to avoid light leakage. Taiwan Patent Publication No. TWI263468 discloses a plastic frame as a housing of a display device. The plastic frame can be made of polycarbonate to achieve high reflection characteristics, and a positioning member can be integrally formed on the plastic frame, and the positioning member can be made of a dark material to achieve a light shielding effect. Continental Patent Publication No. CN101551534B discloses a plastic frame comprising a first body and a second body. The liquid crystal display panel and the optical film assembly are disposed on the first body of the plastic frame, and the light source is disposed on the second body to make the second body The first body is combined.

The present invention provides a display device which can improve the brightness of the periphery of a screen and avoid light leakage.

Other objects and advantages of the present invention will become apparent from the technical features disclosed herein.

An embodiment of the present invention provides a display device including a backlight module, a plastic frame, and a display panel. The backlight module provides a light source for the display device, and the plastic frame surrounds and limits the backlight module, and the display panel is stacked on the backlight module and the plastic frame and abuts against the plastic frame. An outer pin joint region is formed on at least one side of the display panel, and the plastic frame has a plurality of frame arms corresponding to respective sides of the display panel, and the frame arm corresponding to the side edge formed with the outer pin joint region is made of white material Constructed, and at least one of the remaining frame arms is constructed of a low reflective material.

In one embodiment, the white material has a reflectance greater than or equal to 90%, the low reflective material has a reflectance less than or equal to 50%, and the low reflective material can be a black material or a gray material.

In one embodiment, the display panel has a first side and a third side, and a second side and a fourth side. The first side is connected to the second side and the fourth side, the third side is connected to the second side and the fourth side, and the outer pin joint is formed on the first side and the second side.

In one embodiment, the two frame arms disposed on the third side and the fourth side are all made of a low reflective material.

In one embodiment, the frame arm disposed corresponding to the third side is formed of a white material, and the frame arm disposed corresponding to the fourth side is formed of a low reflective material.

In an embodiment, the display device further includes a flexible circuit board for transmitting the electronic signal of the display panel. The pin end of the flexible circuit board is disposed on the first side, and the frame arm corresponding to the first side is formed of a white material.

In one embodiment, the plastic frame is integrally formed by injection molding.

Another embodiment of the present invention provides a display device including a backlight module, a plastic frame, and a display panel. The periphery of the display device forms at least one wide bezel area and at least one narrow bezel area, and the bezel width of the wide bezel area is greater than the bezel width of the narrow bezel area. The backlight module provides a light source of the display device, and the plastic frame surrounds and limits the backlight module. The display panel is stacked on the backlight module and the plastic frame and abuts the plastic frame, and the plastic frame has a plurality of frame arms corresponding to the respective sides of the display panel. At least one frame arm corresponding to the wide bezel area is formed of a white material, and at least one frame arm corresponding to the narrow bezel area is composed of a low reflective material.

In one embodiment, the white material has a reflectance greater than or equal to 90%, the low reflective material has a reflectance less than or equal to 50%, and the low reflective material can be a black material or a gray material.

In one embodiment, the display device further includes a flexible circuit board for transmitting the electronic signal of the display panel, and the pin ends of the flexible circuit board are overlapped with the wide bezel area.

According to the design of each of the above embodiments, since the reflection effect of the white material is good and the reflection effect of the low-reflection material is poor, the wide frame area of the plastic frame corresponds to the selection of the white material, and the brightness of the periphery of the picture can be improved by the light reflection characteristic of the white material. And the narrow frame area selects a low-reflective material, and the low-reflection material can be used to avoid the effect of the frame reflection forming a side bright line. Because it is not necessary to use manual blackening and attaching the light-shielding tape as in the conventional design, it can avoid the problem of defective products caused by the different manual operation levels, effectively simplifying the process and improving the yield of the finished product.

Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. The above and other objects, features, and advantages of the invention will be apparent from

10‧‧‧ display device

12‧‧‧ display panel

12a, 12b, 12c, 12d‧‧‧ display panel sides

22‧‧‧ display area

24‧‧‧Black Matrix Area

26‧‧‧Outer pin junction

28‧‧‧Soft circuit board

28a‧‧‧ pin end

30‧‧‧ plastic frame

30a, 30b, 30c, 30d‧‧‧ frame arm

40‧‧‧Backlight module

200, 200a, 200b‧‧‧ display devices

202‧‧‧White plastic frame

204‧‧‧LCD panel

206‧‧‧Optical film

208‧‧‧Light source

210‧‧‧film tape

212‧‧‧low polarizer

214‧‧‧Lighting tape

A1‧‧‧Narrow bezel area

A2‧‧‧ wide border area

H1, H2‧‧‧ border width

I‧‧‧Light

1 is a schematic view of a conventional display device.

2 is a schematic view of another conventional display device.

3 is a schematic view of another conventional display device.

4 is a schematic diagram of a display device in accordance with an embodiment of the present invention.

FIG. 5 is a schematic view of a plastic frame according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of a plastic frame according to another embodiment of the present invention.

7A and 7B are schematic cross-sectional views showing a display device according to an embodiment of the present invention at different positions.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.

4 is a schematic diagram of a display device in accordance with an embodiment of the present invention. As shown in FIG. 4, the display panel 12 of the display device 10 has a display area 22, a black matrix area 24, and an outer lead land 26. The black matrix region 24 surrounds the display region 22, and the outer pin bonding region 26 is disposed on at least one side of the display panel 12 to place a driving element (not shown) such as a source driving IC or a gate driving IC. In response to the current narrow bezel design requirements, the display panel 12 will minimize the frame portion of its non-display area, and form a narrow bezel area A1 with a small frame width H1 on the side. However, since at least one side of the display panel 12 is provided with, for example, an external pin bonding region 26 to dispose the driving component, the side of the outer pin bonding region 26 is formed to form a wide bezel region having a large frame width H2. A2, therefore, the display panel 12 has both the wide bezel area A2 and the narrow bezel area A1, and the bezel width H2 of the wide bezel area A2 is greater than the bezel width H1 of the narrow bezel area A1. Moreover, the display device 10 can have a flexible circuit board 28 for transmitting the electronic signal of the display panel 12, and the pin end 28a of the flexible circuit board 28 can be overlapped with the wide bezel area A2. In this embodiment, the display panel 12 has opposite side edges 12a and side edges 12c, and opposite side edges 12b and side edges 12d. The side edges 12a are connected to the side edges 12b and the side edges 12d, and the side edges 12c are connected to the side edges 12b. And the side 12d, the pin end 28a of the flexible circuit board 28 is located on the side 12a, and the outer pin bonding area 26 is formed on the side 12a and the side 12b, so the side 12a of the outer pin bonding area 26 is provided, 12b will form a wide bezel area A2, and 26 side edges 12c, 12d which are not provided with outer pin engaging areas can form a narrow bezel area A1, which will result in different border sizes of different side edges, and thus a smaller frame size area It is easy to form a side bright line due to the reflection of the frame.

FIG. 5 is a schematic view of a plastic frame according to an embodiment of the present invention. For convenience of description and clearly showing the technical features of the present invention, the plastic frame components belonging to the display device of FIG. 4 are separately drawn in FIG. 5. As shown in FIG. 5, the plastic frame 30 has a plurality of frame arms 30a-30d disposed corresponding to the respective side edges 12a-12d of the display panel 12, that is, the frame arms 30a, 30b, 30c, and 30d are respectively displayed in the display device 10. The side edges 12a, 12b, 12c, 12d of the panel 12. In this embodiment, since the outer lead bonding area 26 is located at the side edges 12a, 12b of the display panel 12, the frame is wider, and thus the plastic frame 30 corresponds to the frame arm formed with the side edges 12a, 12b of the outer pin bonding area 26. The 30a and 30b may be composed of a white material, and the light reflection property of the white material is used to increase the brightness of the periphery of the screen, and the border is wide without causing a side bright line problem. On the other hand, the side edges 12c, 12d of the display panel 12 are formed with the narrow bezel area A1 because the outer pin bonding area 26 is not provided. Therefore, the remaining frame arms 30c, 30d of the plastic frame 30 corresponding to the side edges 12c, 12d can be low. The reflective material is formed. When the light on the side touches the low-reflective material, the light reflection effect is poor, so that the light after the reflection (to the display area 22 of FIG. 4) is reduced, so that the plastic frame 30 can be avoided. Reflected to form a side bright line. Of course, the frame arms 30c, 30d corresponding to the side edges 12c, 12d of the outer pin joint region 26 are not required to be made of a low-reflective material, for example, only the side 12d has a narrow bezel. Alternatively, when the side edge 12c does not form a side bright line, as shown in FIG. 6, only the frame arm 30d of the corresponding side 12d of the plastic frame 30 may be made of a low-reflective material. Similarly, the frame arms 30c, 30d corresponding to the side edges 12c, 12d of the wide bezel area may also be formed of a white material without the need for a white material, depending on actual needs.

In one embodiment, the reflectivity of the white material may be greater than or equal to 90%, the reflectivity of the low reflective material may be less than or equal to 50%, and the low reflective material may be, for example, a black material or a gray material.

7A and 7B are cross-sectional views showing a display device according to an embodiment of the present invention at different positions, wherein FIG. 7A is a plastic frame section corresponding to a white material and FIG. 7B is a plastic frame section corresponding to a low reflective material. As shown in FIG. 7A and FIG. 7B, the plastic frame 30 encloses and limits the backlight module 40. The backlight module 40 provides a light source for the display device. The display panel 12 is stacked on the backlight module 40 and the plastic frame 30 and abuts against the backlight module 40. Plastic frame 30. Since the plastic frame 30 can simultaneously include a section made of a white material (such as the frame arm 30a illustrated in FIG. 7A) and a section made of a low-reflective material (such as the frame arm 30d illustrated in FIG. 7B), the brightness of the screen can be simultaneously improved. And to avoid the effect of the formation of side bright lines. In one embodiment, the sections of the different reflectivity materials may be integrally molded by two-color materials, or may be separately assembled by using different materials and then combined.

In summary, the display device of the embodiment of the present invention has at least one of the following advantages: by the design of each of the above embodiments, since the reflective effect of the white material is good and the reflection effect of the low-reflective material is poor, the frame width is wide. The white material is selected in the frame area, and the brightness of the periphery of the screen can be improved by the light reflection property of the white material, and the low-reflection material can be selected in the narrow frame area, and the low-reflection material can be used to avoid the reflection of the frame to form the side bright line. . Because it is not necessary to use manual blackening and attaching the light-shielding tape as in the conventional design, it can avoid the problem of defective products caused by the different manual operation levels, effectively simplifying the process and improving the yield of the finished product.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the terms "first", "second" and the like mentioned in the specification or the scope of the claims are only used to name the elements or distinguish different embodiments or ranges, and are not intended to limit the number of elements. Upper or lower limit.

30‧‧‧ plastic frame

30a, 30b, 30c, 30d‧‧‧ frame arm

Claims (12)

A display device includes: a backlight module, providing a light source of the display device; a plastic frame surrounding and limiting the backlight module; and a display panel stacked on the backlight module and the plastic frame A plurality of frame engaging regions are formed on at least one side of the display panel, wherein the plastic frame has a plurality of frame arms corresponding to respective sides of the display panel, and the outer pins are correspondingly formed The frame arms of the side of the landing zone are constructed of a white material and at least one of the remaining frame arms is constructed of a low reflective material. The display device of claim 1, wherein the low-reflective material is a black material or a gray material. The display device of claim 1, wherein the white material has a reflectance greater than or equal to 90% and the low reflectivity material has a reflectance less than or equal to 50%. The display device of claim 1, wherein the display panel has a first side and a third side, and a second side and a fourth side, and the first side The second side and the fourth side are connected to the one side, the third side is connected to the second side and the fourth side, and the outer pin joint is formed on the first side and the first side Two sides. The display device of claim 4, wherein the two frame arms disposed corresponding to the third side and the fourth side are all made of a low-reflective material. The display device according to claim 4, wherein the frame arm provided corresponding to the third side is made of a white material, and the frame arm provided corresponding to the fourth side is made of a low-reflective material. The display device of claim 4, further comprising a flexible circuit board for transmitting an electronic signal of the display panel, wherein a pin end of the flexible circuit board is disposed on the first side, and correspondingly The frame arms provided on the first side are made of white material. The display device of claim 1, wherein the plastic frame is integrally injection molded. A display device, the display device has at least one wide bezel area and at least one narrow bezel area, the bezel width of the wide bezel area is greater than the bezel width of the narrow bezel area, and the display device comprises: a backlight module, providing the The display device is a light source; a plastic frame surrounds and limits the backlight module; and a display panel is stacked on the backlight module and the plastic frame and abuts the plastic frame, wherein the plastic frame has a corresponding a plurality of frame arms disposed on each side of the display panel, and at least one frame arm corresponding to the wide frame area is composed of white material, and corresponds to a narrow frame area At least one of the frame arms is formed of a low reflective material. The display device of claim 9, wherein the low-reflective material is a black material or a gray material. The display device of claim 9, wherein the white material has a reflectance greater than or equal to 90%, and the low reflective material has a reflectance less than or equal to 50%. The display device of claim 9, further comprising a flexible circuit board for transmitting an electronic signal of the display panel, wherein a pin end of the flexible circuit board overlaps the wide bezel area.