TWI483033B - Display module - Google Patents

Description

Display module

The present invention relates to a display module, and more particularly to a display module that can have a slim board.

With the booming display technology, displays of various sizes, such as televisions, computer screens, notebook computers, and mobile phones, have been vigorously developed. Taking a notebook computer as an example, in addition to the display performance of the display module, such as resolution, contrast, viewing angle, etc., the requirements for the aesthetic appearance of the display module are also increasing. Therefore, display module related companies have already invested in the narrow frame design, so that display modules with the same display quality are more light, thin and short to meet consumer demand.

The display module is mainly composed of a display panel, a backlight unit, a plastic frame and a back plate. The backlight unit is generally composed of a light guide plate and a light source. The plastic frame is used to carry the display panel described above, and the back panel is used to carry the backlight unit described above, and the display panel is also assembled on the back panel. In general, in order to allow the display panel to firmly bear against the plastic frame, the bearing surface of the plastic frame must have a certain width to maintain the desired mechanical strength. Therefore, the border of the display module cannot be narrowed.

The invention provides a display module with a narrow bezel design.

The invention provides a display module, including a backboard and a backlight a display panel, a plurality of fixed columns, and at least one support line. The backlight unit is disposed on the backboard. The display panel is disposed on the backlight unit. The fixing post is fixed on the backboard and located on at least one side of the backlight unit. Two ends of the support line are respectively fixed on the adjacent two fixing posts, and the support line contacts at least one side of the lower surface of the display panel to support the display panel.

In one embodiment of the present invention, the number of the fixing posts is four, corresponding to the four corners of the display panel, the number of the support lines is two or four, and the support lines contact the opposite sides of the lower surface of the display panel. Or four sides.

In one embodiment of the present invention, the number of the fixing posts is four, corresponding to the four corners of the display panel, the number of the support lines is three, and the support lines contact the three sides of the lower surface of the display panel.

In one embodiment of the present invention, the display module further includes a frame, and at least a portion of the frame is disposed on a side of the display panel on which the support line is not disposed to support the lower surface of the display panel.

In an embodiment of the invention, the support wire is made of plastic or metal.

In an embodiment of the invention, the backlight unit is a direct-lit or side-lit backlight unit.

In an embodiment of the invention, the backlight unit is a side-lit backlight unit and includes a rectangular light guide plate and a light source, wherein the support line is disposed parallel to a pair of short sides of the rectangular light guide plate, and the light source corresponds to A long side of the rectangular light guide plate is provided.

In an embodiment of the invention, the foregoing display module further includes a frame The body, at least a portion of the frame is disposed corresponding to the opposite sides of the long side to support the lower surface of the display panel adjacent to the opposite side of the long side.

In an embodiment of the invention, the number of the support lines is three, and the support lines are disposed corresponding to the pair of short sides and the opposite sides of the long sides.

In an embodiment of the invention, the aforementioned support line is in a tensioned state.

Based on the above, the display module of the present invention replaces at least one side of the lower surface of the display panel with a support line instead of the plastic frame, so that the frame of the display module is narrowed.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a top plan view of a display module in accordance with an embodiment of the present invention. 2A, 2B, and 2C are schematic cross-sectional views of the line A-A', B-B', and C-C' in Fig. 1, respectively. It should be noted that, in order to clearly illustrate the relative arrangement relationship between the components of the display module of the embodiment, FIG. 1 omits some components of the display module.

Referring to FIG. 1 , the display module 100 of the present embodiment includes a back plate 110 , a backlight unit 120 a , a display panel 130 , a plurality of fixing posts 140 , and at least one support line 150 . In this embodiment, the back plate 110 has, for example, a recess that can carry the backlight unit 120a and accommodate the display panel 130, the fixing post 140, and the support line 150. In addition, the material of the back plate 110 may be metal or other suitable material.

Referring to FIG. 1 and FIG. 2A , the backlight unit 120 a is disposed on the back plate 110 . Further, the backlight unit 120a is disposed, for example, in the aforementioned groove. Further, the backlight unit 120a may be a direct type backlight unit or a side entrance type backlight unit. In detail, when the backlight unit 120a is a direct type backlight unit, the backlight unit may include a plurality of light sources, such as a light tube or a Light Emitting Diode (LED). The light sources may be regularly or irregularly arranged in the aforementioned grooves, and the detailed arrangement may be determined by the actual needs of the display module. In other embodiments, when the backlight unit 120a is a side-lit backlight unit, the backlight unit may further include a rectangular light guide plate in addition to the foregoing light source, wherein the light source is disposed on one side of the rectangular light guide plate.

The display panel 130 is disposed on the backlight unit 120a. In the present embodiment, the display panel 130 is, for example, a liquid crystal display (LCD), but the invention is not limited thereto. Further, the display panel 130 can include a first substrate 132, a second substrate 134, a liquid crystal layer (not shown) disposed between the first substrate 132 and the second substrate 134, and a first polarizer 136. And a second polarizer 138. The first substrate 132 is disposed opposite to the second substrate 134. The first polarizer 136 and the second polarizer 138 are respectively located on the first substrate 132 and the second substrate 134 , and the first substrate 132 and the second substrate 134 are located between the first polarizer 136 and the second polarizer 138 .

In the present embodiment, the first substrate 132 is, for example, an active device array substrate including a plurality of pixels, and the second substrate 134 is, for example, a color filter layer disposed corresponding to each pixel in the first substrate 132, but the present invention Not using this as limit. In other embodiments, the first substrate 132 may be an Array on Color Filter substrate (AOC substrate) integrated with a transistor array, or a transistor array substrate integrated with a color filter layer (Color Filter on Array substrate, COA substrate).

Referring to FIG. 1 and FIG. 2B, the fixing post 140 is fixed on the back plate 110 and located on at least one side of the backlight unit 120a. This embodiment is exemplified by four fixing posts 140 and two supporting wires 150, but the present invention does not limit the number of supporting wires 150 and their corresponding fixing posts 140. In other embodiments, the number of support lines 150 may be one to four and the number of corresponding fixed posts 140 may be two to four.

In this embodiment, the four fixing posts 140 are respectively disposed corresponding to the four corners of the display panel 130. Both ends of the support line 150 are respectively fixed on the adjacent two fixing posts 140, and the support lines 150 contact opposite sides of the lower surface S1 of the display panel 130. The support wire 150 is in a tensioned state to support a peripheral region of the display panel 130. In addition, the material of the support line 150 may be plastic, metal or other suitable material.

Referring to FIG. 1 and FIG. 2C , the display module 100 further includes a frame 160 , wherein at least a portion of the frame 160 is disposed corresponding to a side of the display panel 130 where the support line 150 is not disposed to support the lower portion of the display panel 130 . Surface S1 (shown in Figure 1C). Further, the frame 160 has a body 160a and at least one protrusion 160b. The body 160a can be disposed in the back plate 110, and the protrusion 160b is disposed corresponding to the side of the display panel 130 where the support line 150 is not disposed. .

For example, the display module 100 of the present embodiment includes two support lines 150 disposed on a pair of short sides of the backlight unit 120a, and thus is not provided with the support lines 150 (ie, a pair of long sides of the backlight unit 120a). The protrusions 160b are respectively provided to provide the bearing faces on both sides of the display panel 130 where the support lines 150 are not disposed. Further, the bearing surface provided by the upper surface S2 of each of the protruding portions 160b is equal to the bearing surface provided by the support wire 150. Therefore, the lower surface S1 of the display panel 130 can smoothly bear on the support line 150 and the upper surface S2 of the portion of each of the projections 160b. In addition, a shortest distance G may be disposed between the protrusion 160b and the backlight unit 120a to tolerate a variable of the width L ₁₂₀ of the backlight unit 120a when thermally expanded.

In this embodiment, the two sides of the lower surface S1 of the display panel 130 are supported by the support line 150, and the frame 160 can be reduced to occupy the volume of the display module 100 at one of the short sides of the backlight unit 120a. Therefore, the display module 100 can have a narrow bezel design for the short side. In other words, under the display module of the same size, the display module 100 of the embodiment can have a larger size display area. Alternatively, the size of the display module 100 of the present embodiment can be made smaller under the display area of the same size.

Referring to FIG. 2A , the display module 100 of the embodiment may further include at least one tape 170 . The back plate 110 and the display panel 130 are wrapped in the tape 170. Further, the material of the tape 170 is, for example, a material that is opaque to light. Therefore, in addition to the backing plate 110 and the display panel 130, the tape 170 can also be used to shield the line traces outside the display area of the display panel 130.

3 is a cross-sectional view of a display module in accordance with another embodiment of the present invention. In particular, the position of the section of Figure 3 is approximately the same as the section of the section of Figure 2C. Set. The display module 200 of the present embodiment has a similar structure to the display module 100 of FIG. 1, and the difference between the two is mainly shown in FIG. 3. Further, a schematic cross-sectional view of the display module 200 of the present embodiment at a line A-A' and BB' with respect to FIG. 1 can be referred to FIG. 2A and FIG. 2B, and at a C-C' line. See Figure 3 for a schematic cross-section.

Referring to FIG. 3, the backlight unit 120b of the display module 200 of the present embodiment is a side-lit backlight unit. The backlight unit 120a includes a rectangular light guide plate 122 and a light source 124. The light source 124 can be a light tube, LED light bars or other suitable light source. The rectangular light guide plate 122 is, for example, disposed at a position of the backlight unit 120a of FIG. 1, and the light source 124 is disposed corresponding to a long side of the rectangular light guide plate 122. Further, the aforementioned support line 150 is, for example, disposed corresponding to a pair of short sides of the rectangular light guide plate 122. In other words, the display module 200 of the embodiment has two support lines 150 for supporting the peripheral area of the display panel 130.

The backlight unit 120b of this embodiment may further include a pedestal 126. The pedestal 126 can be used to carry the aforementioned rectangular light guide plate 122 and the light source 124. Further, the base 126 includes a bottom portion 126a, a connecting portion 126b, and a top portion 126c, wherein the connecting portion 126b connects the bottom portion 126a and the top portion 126c. The rectangular light guide plate 122 and the light source 124 are disposed on the bottom portion 126a, and the light source 124 is located between the bottom portion 126a and the top portion 126c.

In the present embodiment, the display panel 130 bears against the upper surface S6 of the top portion 126c in addition to the upper surface S2 of the portion of the projection portion 160b. In addition, the pedestal 126 is made of, for example, a metal material that conducts heat and reflects light. Therefore, most of the light emitted by the light source 124 can be introduced into the rectangular light guide plate. The light entering the rectangular light guide plate 122 can be reflected by the bottom portion 126a and transmitted to the display panel 130, or can be transmitted to the rectangular light guide plate 122 with respect to the end of the light source 124 and then transmitted to the display panel 130. The distribution of the light emitted from the backlight unit 120b is more uniform. Of course, the backlight unit 120b of the embodiment may further include other optical films (for example, a diffusion sheet, a cymbal sheet, etc.) disposed on the rectangular light guide plate 122 to improve light utilization efficiency or increase uniformity of light output. .

In the present embodiment, the display module 200 uses the support line 150 to carry the pair of short side lower surfaces S1 of the display panel 130, thereby reducing the frame 160 to occupy the display module 200 at one of the short sides of the backlight unit 120a. The volume of the two sides of the display panel 130 bears against the protrusion 160b and the top 126c of the base 126, respectively. Therefore, the display module 200 can have a narrow bezel design for the short sides. In other words, under the display module of the same size, the display module 200 of the embodiment can have a display area of a larger size. Alternatively, the size of the display module 200 of the present embodiment can be made smaller under the display area of the same size.

4 is a cross-sectional view of a display module in accordance with still another embodiment of the present invention. Referring to FIG. 4 , the display module 300 of the present embodiment has a similar structure to the display module 200 of the embodiment of FIG. 3 . The main difference between the display module 300 and the display module 300 of the embodiment is that the display module 300 of the embodiment supports the display panel 130 . The number of the support lines 150 in the peripheral area is three, wherein the support line 150 is disposed corresponding to a pair of short sides of the rectangular light guide plate 122 and a long side away from the light source 124. Therefore, the frame 160 at the other end of the light source 124 can be disposed without the protrusion 160b, and the lower surface S1 of the display panel 130 can be carried by the support line 150 instead of the protrusion 160b of the frame 160.

In this way, the display module 300 of the embodiment can reduce the area occupied by the frame 160 on the short side of the display module 300, and can also reduce the occupation of the frame 160 away from the long side of the light source 124. area. In other words, compared to the display module 200, the display module 300 of the present embodiment can further have a design with a narrow bezel adjacent to the opposite side of the long side of the light source 124. Therefore, under the display module of the same size, the display module 300 of the embodiment can have a display area of a larger size. Alternatively, the size of the display module 300 of the present embodiment can be made smaller under the display area of the same size.

In other embodiments, the display module 300 can further reduce the area occupied by the recesses of the frame 160 on the back plate 110 by removing the frame 160 (the body 160a), thereby causing the display module 300. All four sides can have a narrow bezel design.

In summary, the present invention replaces at least one side of the lower surface of the display panel with a support line instead of the protrusion of the frame, so that the width of at least one side of the frame of the display module is reduced, thereby occupying less Displays the area of the module. Therefore, the border of the display module is narrowed.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements 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, 200, 300‧‧‧ display modules

110‧‧‧ Backboard

120a, 120b‧‧‧ backlight unit

122‧‧‧ Rectangular light guide

124‧‧‧Light source

126‧‧‧Base

126a‧‧‧ bottom

126b‧‧‧Connecting Department

126c‧‧‧ top

130‧‧‧ display panel

132‧‧‧First substrate

134‧‧‧second substrate

136‧‧‧First polarizer

138‧‧‧Second polarizer

140‧‧‧Fixed column

150‧‧‧Support line

160‧‧‧ frame

160a‧‧‧ Ontology

160b‧‧‧protrusion

170‧‧‧ Tape

S1‧‧‧ lower surface

S2, S4, S6‧‧‧ upper surface

S3‧‧‧ surface

S5‧‧‧ outer surface

G‧‧‧Short distance

L _120a ‧‧‧Width

A-A’, B-B’, C-C’‧‧‧

1 is a top plan view of a display module in accordance with an embodiment of the present invention.

2A, 2B, and 2C are A-A', B-B', and C-C' in Fig. 1, respectively. A schematic cross-sectional view of the line.

3 is a cross-sectional view of a display module in accordance with another embodiment of the present invention.

4 is a cross-sectional view of a display module in accordance with still another embodiment of the present invention.

100‧‧‧ display module

110‧‧‧ Backboard

120a‧‧‧Backlight unit

130‧‧‧ display panel

132‧‧‧First substrate

134‧‧‧second substrate

136‧‧‧First polarizer

138‧‧‧Second polarizer

150‧‧‧Support line

160‧‧‧ frame

160a‧‧‧ Ontology

170‧‧‧ Tape

S3‧‧‧ surface

S4‧‧‧ upper surface

S5‧‧‧ outer surface

A-A’‧‧‧ cut line

Claims (10)

A display module includes: a backplane; a backlight unit disposed on the backplane; a display panel disposed on the backlight unit; a plurality of fixing posts fixed to the backplane and located in the backlight unit At least one side; and at least one support line, the two ends of the support line are respectively fixed on the adjacent two of the fixing posts, the at least one support line contacting at least one side of the lower surface of the display panel to support the periphery of the display panel region. The display module of claim 1, wherein the number of the fixing columns is four, respectively corresponding to four corners of the display panel, and the number of the at least one supporting line is two or four. The support lines contact opposite sides or four sides of the lower surface of the display panel. The display module of claim 1, wherein the number of the fixing columns is four, respectively corresponding to four corners of the display panel, and the number of the at least one supporting line is three, and the supporting lines are Contact the three sides of the lower surface of the display panel. The display module of claim 1, further comprising a frame, at least a portion of the frame corresponding to the side of the display panel not provided with the at least one support line to support the display panel lower surface. The display module of claim 1, wherein the at least one support wire is made of plastic or metal. The display module of claim 1, wherein the back The light unit is a direct-lit or side-lit backlight unit. The display module of claim 6, wherein the backlight unit is a side-lit backlight unit and includes: a rectangular light guide plate, wherein the support lines are parallel to a pair of short sides of the rectangular light guide plate. And a light source corresponding to a long side of the rectangular light guide plate. The display module of claim 7, further comprising a frame, at least a portion of the frame corresponding to the opposite side of the long side to support the display panel adjacent to the opposite side of the long side lower surface. The display module of claim 7, wherein the number of the at least one support line is three, and the support lines are disposed corresponding to the pair of short sides and opposite sides of the long side. The display module of claim 1, wherein the at least one support line is in a tensioned state.