TW201505005A - Splicing display device - Google Patents

Abstract

A splicing display device includes a number of display panels which are spliced together to form a screen. A frame area is formed between the two adjacent display panels. The splicing display device also includes a transparent light guide member. The light guide member attaches the frame area and a part of the screen adjacent to both sides of the frame area. The light guide member includes a bottom surface contacting the frame area, and a top surface opposite to the bottom surface. The top surface includes a number of projections. The part of the screen on both side of the frame area emit light into the light guide member through the bottom surface, and the light propagate towards the frame area after the refraction of the projections on the top surface.

Description

Spliced display device

The present invention relates to the field of display technology, and more particularly to a spliced display device.

The conventional splicing screens are physically spliced using multiple independent display screens. Each display screen is individually packaged with a bezel. When a plurality of display screens are spliced to form a large screen, there is a border area occupying a certain width between adjacent display screens, which seriously affects the overall display effect of the display screen.

In view of this, it is necessary to provide a spliced display device capable of improving the overall display effect of a display screen.

A spliced display device includes a screen formed by splicing a plurality of display screens. The splicing portion of the adjacent display screen forms a frame area. The spliced display device also includes a transparent light guide. The light guide body covers a portion of the screen area on both sides of the frame area and the frame area. The light guide body includes a bottom surface opposite to the frame region and a top surface opposite to the bottom surface. A plurality of protrusions are disposed on the top surface. Light emitted by a part of the screen on both sides of the frame area enters the light guide body through the bottom surface, and is refracted by the protrusion on the top surface to be directed to the frame area.

In the above spliced display device, the light guide body covering the frame area can refract light on the screen near the frame area and illuminate the frame area, so that the user can view the border area between adjacent screens when viewing. It is visually reduced or even eliminated, improving the overall display of the screen displayed on the screen.

100‧‧‧Splicing display device

10‧‧‧ display screen

11‧‧‧ Display Department

12‧‧‧Border

30‧‧‧ screen

31‧‧‧Border area

50‧‧‧Light guide

51‧‧‧ bottom

511‧‧‧Into the glossy surface

52‧‧‧ top surface

521‧‧‧ bumps

5211‧‧‧ side

522‧‧‧Glossy surface

A‧‧‧Light

A1, A3‧‧‧ refracted light

A2‧‧‧reflected light

1 is a schematic view of a spliced display device according to a first embodiment of the present invention.

Figure 2 is a cross-sectional view of the spliced display device of Figure 1 taken along line II-II.

Figure 3 is a partially enlarged schematic view of portion III of Figure 2.

4 is a cross-sectional view of the spliced display device of the second embodiment.

Fig. 5 is a partial cross-sectional view showing a top surface of a light guide body in the spliced display device of the third embodiment.

FIG. 6 is a schematic diagram of light propagation of the spliced display device of FIG. 2. FIG.

Referring to FIG. 1, a spliced display device 100 according to a first embodiment of the present invention includes a plurality of display screens 10 and a light guide 50. The plurality of display screens 10 are joined by physical splicing to form a larger screen 30. The light guide body 50 is disposed at a junction of adjacent display screens 10.

The display screen 10 includes a display portion 11 and a bezel 12 for encapsulating the display portion 11. The display section 11 is for displaying a screen for viewing by a user. Due to the bezel 12, the screen 30 is located at the junction of the adjacent display portions 11 to form the bezel area 31. The display screen 10 can be a liquid crystal display screen, a plasma display screen, a cathode ray tube display screen or a rear projection display screen.

Referring to FIGS. 2 and 3, the light guide body 50 covers the frame portion 31 and a portion of the screen 30 on both sides of the frame region 31. The light guide body 50 is made of a polymethylmethacrylate (PMMA) transparent material. The light guide body 50 is a cylindrical body having an arcuate cross section, and includes a rectangular bottom surface 51 and a curved top surface 52 connected between a pair of long sides of the bottom surface 51. The bottom surface 51 covers the frame area 31 and a portion of the screen 30 on both sides of the frame area 31. The portion of the bottom surface 51 corresponding to the partial screen 30 on both sides of the bezel area 31 forms two light incident surfaces 511. The two light incident surfaces 511 are symmetrically disposed with respect to the bezel area 31. The width of the bottom surface 51 is set according to the width of the bezel area 31. In the present embodiment, the ratio of the width of the bottom surface 51 to the width of the bezel area 31 is 3:2. A plurality of protrusions 521 are disposed on the top surface 52. The protrusion 521 is a triangular prism having an isosceles triangle in cross section. The length of the protrusion 521 is equal to the length of the light guide body 50. A plurality of protrusions 521 are continuously distributed on the top surface 52. The two side faces 5211 of each of the protrusions 521 collectively form a light exiting surface 522 of the light guide body 50. The maximum thickness of the light guide body 50 is set according to the width of the bottom surface 51. In the present embodiment, the ratio of the maximum thickness of the light guide body 50 to the width of the bottom surface 51 is 1:4.

Referring to FIG. 4, in the second embodiment, the difference from the first embodiment is that the light guide body 50 is a triangular prism having an isosceles triangle in cross section. The bottom surface 51 of the light guide body 50 is a side surface corresponding to the bottom side of the isosceles triangle, and the top surface 52 is a side surface corresponding to the two waists of the isosceles triangle.

Referring to FIG. 5, in the third embodiment, the difference from the first embodiment is that the protrusions 521 on the light guide body 50 are cylinders having an arcuate cross section. The curved faces of all the protrusions 521 collectively form the light exit surface 522 of the light guide body 50.

Referring to FIG. 6, when the spliced display device 100 is displayed, the light A emitted from the position of the screen 30 near the frame area 31 enters the light guide body 50 from the light incident surface 511 and occurs under the action of the side surface 5211 of the protrusion 521. After the refraction and reflection, the refracted ray A1 and the reflected ray A2 are formed. The refracted ray A1 is directly emitted from the light exit surface 522. The reflected light A2 is reflected by the bottom surface 51 in the light guide body 50 and refracted by the side surface 5211 of the protrusion 521 to form the refracted ray A3. The refracted ray A3 is emitted from the light exit surface 522. The light A is deflected toward the center of the bezel area 31 after being refracted and reflected by the light guide 50.

When the user views the picture displayed on the screen 30 from different angles, the light emitted from the position on the screen 30 near the frame area 31 is received by the user's eyes after being refracted and reflected by the light guide body 50. Depending on the reversibility of the light, the user can see that the bezel area 31 displays an image displayed by a portion of the screen 30 on both sides of the bezel area 31. In this way, the frame area 31 is visually reduced or even eliminated, which satisfies the visual continuity of the user viewing the display screen, and improves the overall display effect of the screen displayed on the screen 30 of the tiled display device 100.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and those skilled in the art who are familiar with the art of the present invention should be included in the following claims.

no

100‧‧‧Splicing display device

11‧‧‧ Display Department

12‧‧‧Border

31‧‧‧Border area

511‧‧‧Into the glossy surface

52‧‧‧ top surface

A‧‧‧Light

A1, A3‧‧‧ refracted light

A2‧‧‧reflected light

Claims (8)

A splicing display device comprising a screen formed by splicing a plurality of display screens, wherein a splicing portion of adjacent display screens forms a frame area, and the improvement is that the spliced display device further comprises a transparent light guide body, the light guide body a portion of the screen covering the frame area and the two sides of the frame area, the light guide body includes a bottom surface opposite to the frame area and a top surface opposite to the bottom surface, the top surface is provided with a plurality of protrusions, the frame area Light from a portion of the screen on both sides enters the light guide through the bottom surface and is refracted by the protrusion on the top surface to be directed toward the frame region. The spliced display device of claim 1, wherein the plurality of protrusions are continuously distributed on the top surface. The spliced display device of claim 2, wherein the protrusion is a triangular prism having an isosceles triangle in cross section. The spliced display device of claim 2, wherein the protrusion is a cylinder having an arcuate cross section. The spliced display device of claim 1, wherein the light guide body is a cylinder having an arcuate cross section. The spliced display device of claim 1, wherein the light guide body is a triangular prism having an isosceles triangle in cross section. The splicing display device of claim 1, wherein the bottom surface and the portion corresponding to the partial screens on both sides of the frame region form two light incident surfaces, and the two light incident surfaces are symmetrically disposed with respect to the frame region. The splicing display device of claim 1, wherein the light emitted by a part of the screen on both sides of the frame area is refracted by the protrusion and is deflected toward the center of the frame area.