CN204102491U - Display module - Google Patents

Abstract

A display module includes a light guide plate, at least one light source, a first display panel and a second display panel. The light guide plate has at least one light incident surface, a first light exit surface and a second light exit surface. The first light-emitting surface and the second light-emitting surface are respectively connected to both sides of the light-incident surface, and a first acute angle is sandwiched between the extended surface of the first light-emitting surface and the extended surface of the second light-emitting surface. The light source corresponds to the light incident surface, and the first display panel corresponds to the first light exit surface and has a first display surface. The second display panel corresponds to the second light-emitting surface and has a second display surface. A second acute angle is formed between the extended surface of the first display surface and the extended surface of the second display surface. The utility model can solve the problem of wasting space and cost due to the need to prepare more than two monitors in situations where double-sided display is required.

Description

display module

technical field

The utility model relates to a display module, in particular to a double-sided display display module.

Background technique

In today's information society, personal computers, tablet computers, and notebook computers have become indispensable necessities for most people. Personal computers have good performance and are easy to maintain, but they are inconvenient to carry, so they are generally used at designated locations. The tablet computer has the advantages of light weight and small size, which is quite convenient for users to carry around.

Since the above-mentioned electronic devices only have a single-sided display function, if there is a need for double-sided display, two electronic devices need to be installed at the same time. Put the two electronic devices back to back so that two people facing each other can get information at the same time. For example, in the case of checkout, two monitors need to be prepared, one for the checkout personnel to view, and the other for the consumer to view. Of course, placing two monitors on the checkout counter at the same time not only causes a waste of cost, but also a waste of space. Therefore, how to improve the problem of wasting space and cost caused by preparing more than two displays in the occasion where double-sided display is required is one of the problems that R&D personnel should solve.

Contents of the invention

The utility model relates to a display module, which is used to solve the problems of waste of space and cost caused by setting and preparing more than two displays in occasions requiring double-sided display.

The display module disclosed by the utility model includes a light guide plate, at least one light source, a first display panel and a second display panel. The light guide plate has at least one light incident surface, a first light exit surface and a second light exit surface. The first light exit surface and the second light exit surface are respectively connected to two sides of the light incident surface, and a first acute angle is formed between the extension surface of the first light exit surface and the extension surface of the second light exit surface. The light source corresponds to the light incident surface. The first display panel corresponds to the first light emitting surface. The first display panel has a first display surface. The second display panel corresponds to the second light emitting surface. The second display panel has a second display surface. A second acute angle is formed between the extension surface of the first image plane and the extension surface of the second image surface.

According to the display module disclosed in the above embodiments, the first display surface and the second display surface maintain an acute angle, so that the first display surface and the second display surface can have the same or different inclination angles respectively, and the inclination angles will be It helps the user to look directly at the first display surface and the second display surface, thereby improving the viewing effect of the user.

The above description about the content of the utility model and the following description of the implementation are used to demonstrate and explain the principle of the utility model, and provide further explanation of the claims of the utility model.

Description of drawings

FIG. 1 is a schematic plan view of a display module according to a first embodiment of the present invention.

FIG. 2 is a schematic plan view of a display module according to a second embodiment of the present invention.

FIG. 3 is a schematic plan view of a display module according to a third embodiment of the present invention.

FIG. 4 is a schematic plan view of a display module according to a fourth embodiment of the present invention.

5 is a schematic plan view of a display module according to a fifth embodiment of the present invention.

FIG. 6 is a schematic plan view of a display module according to a sixth embodiment of the present invention.

7 is a schematic plan view of a display module according to a seventh embodiment of the present invention.

FIG. 8 is a schematic plan view of a display module according to an eighth embodiment of the present invention.

9 is a schematic plan view of a display module according to a ninth embodiment of the present invention.

FIG. 10 is a schematic plan view of a display module according to a tenth embodiment of the present invention.

[Description of main component reference signs]

10 display module

100 light guide plate

110a, 110b incident surface

120 first light emitting surface

130 Second light-emitting surface

140 first side

150 second side

210a, 210b, 210c light source

300 first display panel

310 first imaging surface

400 second display panel

410 second imaging surface

510 first prism sheet

520 second prism sheet

530 first diffuser

540 second diffuser

610 first shade

620 second shade

700 light guide plate

710 connecting section

711 incident surface

720 first extension

721 incident surface

722 first light emitting surface

723 first side

730 second extension

731 incident surface

732 second light emitting surface

740 groove

Detailed ways

See Figure 1. FIG. 1 is a schematic plan view of a display module according to a first embodiment of the present invention.

The display module 10 of this embodiment includes a light guide plate 100 , a light source 210 a , a first display panel 300 , and a second display panel 400 .

The cross-sectional shape of the light guide plate 100 is, for example, trapezoidal. The light guide plate 100 has a light incident surface 110 a , a first light exit surface 120 and a second light exit surface 130 . The light incident surface 110 a corresponds to, for example but not limited to, a bottom of a trapezoid. The first light-emitting surface 120 and the second light-emitting surface 130 are respectively connected to both sides of the light-incident surface 110a, that is to say, the first light-emitting surface 120 and the second light-emitting surface 130 respectively correspond to the two waists of the trapezoid and face away from each other. . A first acute angle θ1 is formed between the extension surface of the first light-emitting surface 120 and the extension surface of the second light-emitting surface 130 , and the first acute angle θ1 is greater than 20 degrees and less than 90 degrees.

The light source 210a is, for example but not limited to, a light emitting diode, and the light source 210a corresponds to the light incident surface 110a, so that the light emitted by the light source 210a enters the light guide plate 100 from the light incident surface 110a, and exits from the first light exit surface 120 and the second light exit surface 130 .

The first display panel 300 is, for example, a liquid crystal panel or a combination of a liquid crystal panel and a touch panel. The first display panel 300 corresponds to the first light-emitting surface 120 , that is, the first display panel 300 partially or completely covers the first light-emitting surface 120 . The first display panel 300 has a first display surface 310 . The first display surface 310 is used for displaying images for users to watch.

The second display panel 400 is, for example, a liquid crystal panel or a combination of a liquid crystal panel and a touch panel. The second display panel 400 corresponds to the second light emitting surface 130 , and the second display panel 400 has a second image display surface 410 . The second display surface 410 is used for displaying images for another user to watch. A second acute angle θ2 is formed between the extension surface of the first imaging surface 310 and the extension surface of the second imaging surface 410 , and the second acute angle θ2 is greater than 20 degrees and less than 90 degrees.

In addition, the first display surface 310 of this embodiment is substantially parallel to the first light-emitting surface 120 , and the second display surface 410 is substantially parallel to the second light-emitting surface 130 , so as to improve the distance between the first display panel 300 and the light guide plate 100 . The quality of light transmission and the quality of light transmission between the second display panel 400 and the light guide plate 100 are improved. The so-called substantially parallel means that the included angle between the display surface and the light emitting surface is 0 degree and 180 degree, or the angle error is within the tolerance range of the assembly.

Since the first light-emitting surface 120 and the second light-emitting surface 130 of the above-mentioned light guide plate 100 form a first acute angle θ1, and the first display surface 310 and the second display surface 410 are substantially parallel to the first light-emitting surface 120 and the second display surface 130 respectively. The light emitting surface 130 is such that in this embodiment, the second acute angle θ2 between the first imaging surface 310 and the second imaging surface 410 is substantially equal to the first acute angle θ1.

In addition, in this embodiment, the first imaging surface 310 and the second imaging surface 410 have the same inclination angle, that is, the angle θ3 between the first imaging surface 310 and the vertical line L is the same as that of the second imaging surface 310. The angle θ4 between the image plane 410 and the vertical line L. Since in many application occasions, the display module 10 is placed at the waist height of the user, and the user is a standing person watching the display module 10, so when the user looks down, this tilt angle will help the user to look directly at the first The display surface 310 and the second display surface 410 further improve the user's viewing quality.

In the above embodiment, the number of the light source 210a is one, but it is not limited thereto. See Figure 2. FIG. 2 is a schematic plan view of a display module according to a second embodiment of the present invention. This embodiment is similar to the above embodiment in FIG. 1 , so only the differences will be described.

The number of at least one light incident surface of the light guide plate 100 in this embodiment is two, and the number of light sources is two. In detail, the cross-sectional shape of the light guide plate 100 is trapezoidal. The light guide plate 100 has two light incident surfaces 110 a , 110 b , a first light exit surface 120 and a second light exit surface 130 . The two light incident surfaces 110a and 110b respectively correspond to the bottom and top of the trapezoid. The first light-emitting surface 120 and the second light-emitting surface 130 are respectively connected to the two sides of the light-incident surface 110a, 110b. Towards.

The two light sources 210a, 210b correspond to the two light incident surfaces 110a, 110b respectively, so that the light emitted by the two light sources 210a, 210b enters the light guide plate 100 from the two light incident surfaces 110a, 110b, and passes through the first light exit surface 120 and the second light exit surface. 130 shot. Increasing the number of light sources 210a, 210b will help to improve the brightness and light uniformity of the display module 10 .

In the above embodiments, the first display surface 310 and the second display surface 410 have the same inclination angle, but the present invention is not limited thereto. See Figure 3. FIG. 3 is a schematic plan view of a display module according to a third embodiment of the present invention.

In this embodiment, the first imaging surface 310 and the second imaging surface 410 have different inclination angles respectively. That is, the angle θ3 between the first image plane 310 and the vertical line L is different from the angle θ4 between the second image plane 410 and the vertical line L. When the space of the site is limited and the user needs to be closer to the display module 10 to watch the display image, it is necessary to design a display surface with a large inclination angle (the angle between the display surface and the vertical line L is relatively large). On the contrary, design the imaging surface with a small inclination angle.

In addition, since the vertical heights of the first imaging surface 310 and the second imaging surface 410 are the same, when the inclination angles of the first imaging surface 310 and the second imaging surface 410 are different, the first imaging surface will The size of 310 is different from the size of the second image plane 410 .

See Figure 4. FIG. 4 is a schematic plan view of a display module according to a fourth embodiment of the present invention.

The cross-sectional shape of the light guide plate 100 in this embodiment is a pentagon. The light guide plate 100 has a light incident surface 110 a , a first light exit surface 120 , a first side surface 140 and a second light exit surface 130 . The relative positions of the second light emitting surface 130 , the light incident surface 110 a , the first light emitting surface 120 and the first side surface 140 respectively correspond to the connected four sides of the pentagon. In detail, the first light-emitting surface 120 and the second light-emitting surface 130 are respectively connected to both sides of the light-incident surface 110a, the first side surface 140 is connected to the first light-emitting surface 120, and the first side surface 140 and the first light-emitting surface 120 are sandwiched. a first obtuse angle.

The light source 210a corresponds to the light incident surface 110a , so that the light emitted by the light source 210a enters the light guide plate 100 from the light incident surface 110a and exits from the first light exit surface 120 , the first side surface 140 and the second light exit surface 130 .

The display module 10 of this embodiment further includes a first light shielding member 610 . The first shade 610 is, for example, a part of the housing of the display module 10 . The first light shielding member 610 covers the first side 140 to avoid the problem of light leakage caused by the light emitted from the first side 140 .

See Figure 5. 5 is a schematic plan view of a display module according to a fifth embodiment of the present invention.

The cross-sectional shape of the light guide plate 100 is, for example, trapezoidal. The light guide plate 100 has a light incident surface 110 a , a first light exit surface 120 and a second light exit surface 130 . The light incident surface 110 a corresponds to, for example but not limited to, the top of a trapezoid. The first light exit surface 120 and the second light exit surface 130 are respectively connected to two sides of the light incident surface 110a. That is to say, the first light-emitting surface 120 and the second light-emitting surface 130 respectively correspond to two waists of the trapezoid and face away from each other.

The light source 210 a corresponds to the light incident surface 110 a , so that the light emitted by the light source 210 a enters the light guide plate 100 from the light incident surface 110 a and exits from the first light exit surface 120 and the second light exit surface 130 .

The first display panel 300 , the first prism sheet 510 and the first diffusion sheet 530 correspond to the first light-emitting surface 120 and cover part of the first light-emitting surface 120 . The second display panel 400 , the second prism sheet 520 and the second diffusion sheet 540 correspond to the second light-emitting surface 130 and almost completely cover the second light-emitting surface 130 .

The display module 10 of this embodiment further includes a first light shielding member 610 . The first shade 610 is, for example, the casing of the display module 10 . The first light-shielding member 610 covers the first light-emitting surface 120 corresponding to the exposure to the outside of the first display panel 300, so as to prevent the light emitted from the first light-emitting surface 120 from being emitted from the area not covered by the first image surface 310 to cause light leakage. Problem arises.

See Figure 6. FIG. 6 is a schematic plan view of a display module according to a sixth embodiment of the present invention. The display module 10 of this embodiment further includes a second light shielding member 620 . The second display panel 400 , the second prism sheet 520 and the second diffusion sheet 540 do not completely cover the second light-emitting surface 130 . The second light-shielding member 620 is used to cover the second light-emitting surface 130 corresponding to the second display panel 400 exposed.

See Figure 7. 7 is a schematic plan view of a display module according to a seventh embodiment of the present invention.

The shape of the cross section of the light guide plate 100 is hexagonal. The light guide plate 100 has a light incident surface 110 a , a first light exit surface 120 , a first side surface 140 , a second light exit surface 130 and a second side surface 150 . The relative positions of the second side surface 150 , the second light-emitting surface 130 , the light-incident surface 110 a , the first light-emitting surface 120 and the first side surface 140 respectively correspond to five connected sides of the hexagon. In detail, the first light exit surface 120 and the second light exit surface 130 are respectively connected to both sides of the light incident surface 110a, the first side surface 140 and the second side surface 150 are respectively connected to the first light exit surface 120 and the second light exit surface 130, Moreover, the first side 140 forms a first obtuse angle with the first light-emitting surface 120 , and the second side 150 forms a second obtuse angle with the second light-emitting surface 130 .

The light source 210a corresponds to the light incident surface 110a, so that the light emitted by the light source 210a enters the light guide plate 100 from the light incident surface 110a, and exits from the first light exit surface 120, the first side surface 140, the second light exit surface 130 and the second side surface 150.

The first display panel 300 , the first prism sheet 510 and the first diffusion sheet 530 correspond to the first light-emitting surface 120 . The second display panel 400 , the second prism sheet 520 and the second diffusion sheet 540 correspond to the second light-emitting surface 130 and almost completely cover the second light-emitting surface 130 .

The display module 10 of this embodiment further includes a first light-shielding element 610 and a second light-shielding element 620 . The first light shielding element 610 and the second light shielding element 620 are, for example, a part of the housing of the display module 10 . The first light shielding member 610 and the second light shielding member 620 respectively cover the first side 140 and the second side 150 to avoid light leakage caused by light emitted from the first side 140 and the second side 150 .

It should be noted that the shape of the light guide plate 100 is not limited to the trapezoid, pentagon and hexagon described above. See Figure 8. FIG. 8 is a schematic plan view of a display module according to an eighth embodiment of the present invention.

The light guide plate 700 of this embodiment has a connecting segment 710 , a first extending segment 720 and a second extending segment 730 . The first extension section 720 and a second extension section 730 respectively extend from opposite sides of the connecting section 710 toward the same side of the connecting section 710, and make the connecting section 710, the first extending section 720 and the second extending section 730 form a concave Slot 740.

The first extension section 720 has a light incident surface 721 and a first light exit surface 722 . The light incident surfaces 721 are respectively located on a side of the first extension section 720 facing away from the connecting section 710 . The first light emitting surface 722 is located on a side of the first extension section 720 facing away from the second extension section 730 .

The second extension section 730 has a light incident surface 731 and a second light output surface 732 . The light incident surfaces 731 are respectively located on a side of the second extension section 730 facing away from the connecting section 710 . The second light emitting surface 732 is located on a side of the second extension section 730 facing away from the first extension section 720 .

In this embodiment, the groove 740 is formed by hollowing out between the first extension section 720 and the second extension section 730 , so as to reduce the weight of the light guide plate 100 and reduce the material cost of the light guide plate 100 .

See Figure 9. 9 is a schematic plan view of a display module according to a ninth embodiment of the present invention. This embodiment is similar to the above-mentioned embodiment of FIG. 8 , so only the similarities will be described.

The difference between this embodiment and the embodiment of FIG. 7 is that the first light-emitting surface 722 on the first extension section 720 of this embodiment and the second light-emitting surface 732 of the second extension section 730 have different inclination angles respectively. The first imaging surface 310 and the second imaging surface 410 that are substantially parallel to the first light-emitting surface 722 and the second light-emitting surface 732 respectively have different inclination angles (the included angle θ3 between the imaging surface and the vertical line L, θ4), its effect is the same as that described in the embodiment of FIG. 3 above, so it will not be repeated here.

See Figure 10. FIG. 10 is a schematic plan view of a display module according to a tenth embodiment of the present invention. This embodiment is similar to the above-mentioned embodiment of FIG. 8 , so only the similarities will be described.

The first extension section 720 of this embodiment further has a first side 723 . The first side surface 723 is connected between the light incident surface 721 and the first light exit surface 722 .

The display module 10 of this embodiment further includes a first light shielding member 630 . The first light shielding member 630 covers the first side 723 to avoid the problem of light leakage caused by the light emitted from the first side 140 .

According to the display module disclosed in the above embodiments, the angle between the extension surface of the first display surface and the extension surface of the second display surface is maintained at an acute angle, so that the first display surface and the second display surface can have the same Or different inclination angles, this inclination angle will help the user to look directly at the first display surface and the second display surface, thereby improving the viewing effect of the user.

In addition, the first light-emitting surface and the second light-emitting surface are parallel to the first display surface and the second display surface respectively, so as to improve the light transmission quality between the first display panel and the light guide plate and improve the distance between the second display panel and the light guide plate. quality of light transmission.

Furthermore, the part of the light guide plate can be hollowed out, so that the shape of the light guide plate is similar to a ring structure, which reduces the weight of the light guide plate and reduces the material cost of the light guide plate.

Although the embodiments of the present utility model are disclosed as above, they are not intended to limit the present utility model. Anyone skilled in the art, without departing from the spirit and scope of the present utility model, can refer to the shapes described in the application scope of the present utility model Minor changes can be made in terms of structure, features and spirit, so the scope of patent protection of the utility model must be defined by the appended claims of this description as the criterion.

Claims (10)

1. a display module, is characterized in that:

One light guide plate, there is at least one incidence surface, one first exiting surface and one second exiting surface, this first exiting surface and this second exiting surface are connected to the both sides of this incidence surface, and press from both sides one first acute angle between the extended surface of the extended surface of this first exiting surface and this second exiting surface;

At least one light source, corresponding to this incidence surface;

One first display panel, corresponding to this first exiting surface, this first display panel has one first picture plane; And

One second display panel, corresponding to this second exiting surface, this second display panel has one second picture plane, presss from both sides one second acute angle between the extended surface of this first picture plane and the extended surface of the second picture plane.

2. display module as claimed in claim 1, is characterized in that this first acute angle is greater than 20 degree, and is less than 90 degree.

3. display module as claimed in claim 1, is characterized in that this second acute angle is greater than 20 degree, and is less than 90 degree.

4. display module as claimed in claim 1, it is characterized in that this first picture plane is substantially parallel to this first exiting surface, and this second picture plane is substantially parallel to this second exiting surface.

5. display module as claimed in claim 1, is characterized in that the cross section shape of this light guide plate is trapezoidal or at least pentagon.

6. display module as claimed in claim 1, it is characterized in that, more comprise at least one first shading piece, this this first exiting surface of the first shading piece cover part, this first picture plane is corresponding to this first exiting surface be exposed to outside this first shading piece.

7. display module as claimed in claim 6, it is characterized in that, more comprise at least one second shading piece, this this second exiting surface of the second shading piece cover part, this second picture plane is corresponding to this second exiting surface be exposed to outside this second shading piece.

8. display module as claimed in claim 1, it is characterized in that this light guide plate has a joining section, one first extension and one second extension, this first extension and one second extension extend towards the homonymy of this joining section from the relative both sides of this joining section respectively, and form a groove, this first exiting surface is positioned at the side of this second extension dorsad, this first extension, this second exiting surface is positioned at the side of this first extension dorsad, this second extension, the quantity of this at least one incidence surface is two, this two incidence surface lays respectively at the side of this first extension side of this joining section and this second extension this joining section dorsad dorsad, the quantity of this at least one light source is two, this two light source is respectively to should two incidence surfaces.

9. display module as claimed in claim 1, is characterized in that the size of this first picture plane differs from the size of this second picture plane.

10. display module as claimed in claim 1, is characterized in that this first picture plane and this second picture plane have different angle of inclination respectively.