CN104076520B - Display device - Google Patents

Abstract

A display includes a display panel, a backlight module, a second light source module and a first prism column, wherein the backlight module has at least one light-transmitting area, and the backlight module has a first light source module to provide backlight to the display panel. The second light source module includes a first surface light source part for providing first plane light, wherein the backlight module is located between the display panel and the second light source module and between the first prism pillars of the display panel. The first prism column has a first slope for reflecting the first plane light, so that the first plane light passes through the light-transmitting area and reaches the display panel.

Description

monitor

【Technical field】

The present invention relates to a display, more particularly to a display with multiple light source modules.

【Background technique】

Generally speaking, the display methods applied to slot machines are divided into flat display methods and curved surface display methods. The planar display method is to use a flat-panel display with a flat appearance to display the continuously scrolling patterns in the slot machine, so it lacks a three-dimensional effect. The curved surface display method is to make the appearance of the display into a curved surface with curvature, so when it is used to display the continuously scrolling patterns in the slot machine, it has a more three-dimensional effect. However, the manufacturing process of the curved surface display method is relatively complicated. In addition, if it is a liquid crystal curved surface display, it is necessary to use two glass substrates to clamp the liquid crystal layer, and the distance between the two glass substrates is likely to be unstable during the bending process, resulting in abnormal display and resulting in poor performance. rate drops.

Therefore, how to use a flat-panel display with a relatively simple manufacturing process and a high yield rate to produce a three-dimensional image effect has become one of the current important research and development topics, and has also become an urgent goal for improvement in related fields.

【Content of invention】

In order to solve the above problems, an embodiment of the present invention provides a display, which includes a display panel, a backlight module, a second light source module, and a first prism column, wherein the backlight module has at least one light-transmitting area, and the backlight module A first light source module is provided for providing backlight to the display panel. The second light source module includes a first surface light source part for providing first planar light, wherein the backlight module is located between the display panel and the second light source module, and the backlight module is located between the display panel and the first prism column. The first prism column has a first slope for reflecting the first plane light so that the first plane light passes through the light-transmitting area and reaches the display panel.

According to an embodiment of the present invention, the display further includes scroll wheels. The roller is arranged opposite to at least one light-transmitting area, and the first prism column is located between the backlight module and the roller.

According to an embodiment of the present invention, the above-mentioned second light source module further includes a second surface light source portion for providing a second plane light to the roller.

According to an embodiment of the present invention, the display further includes a second prism column located between the first prism column and the scroll wheel.

According to an embodiment of the present invention, the first surface light source part is located between the backlight module and the second surface light source part.

According to an embodiment of the present invention, there is a gap between the second prism column and the first slope of the first prism column, and the first plane light is totally reflected on the first slope.

According to another embodiment of the present invention, the first prism column is located between the first surface light source part and the second surface light source part.

According to another embodiment of the present invention, the above-mentioned second prism column has a second slope, and the second slope is disposed facing the first slope and separated from each other by a gap.

According to another embodiment of the present invention, the above-mentioned second prism column has two side surfaces respectively connected with the second inclined surface, and the second surface light source part and the roller are respectively disposed on these side surfaces of the second prism column. The second inclined surface of the second prism column is used to reflect the second plane light, so that the second plane light is irradiated to the roller.

To sum up, the above-mentioned embodiment of the present invention can achieve the purpose of three-dimensional presentation of the roller image in the display by means of the first prism column, the second prism column and at least two groups of optical elements. The displayed display panel. Furthermore, the two groups of optical elements can be respectively the first light source module and the second light source module. When the first light source module provides backlight to the display panel, by selectively turning on the second surface light source part in the second light source module, the image of the scroll wheel and the image of the display panel can have a three-dimensional effect of front and back or depth.

【Description of drawings】

In order to make the present invention and its advantages more comprehensible, the descriptions of the accompanying drawings refer to the following:

FIG. 1 is an exploded view illustrating a display according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the display shown in FIG. 1 on the XZ plane.

FIG. 3 is a front view illustrating the second light source module of FIG. 2 in the -Z direction.

FIG. 4 is an enlarged view illustrating the second light source module of FIG. 2 .

FIG. 5 is an exploded view showing another embodiment of the display of the present invention.

FIG. 6 is a cross-sectional view of the display shown in FIG. 5 on the XZ plane.

【Symbol Description】

10, 20: Display

100: display panel

120: Backlight module

121: Translucent area

122: The first light source module

122a, 122b: light source group

123: light output area

124: light guide plate

130: Second light source module

131: The first surface light source department

131a: the first light guide unit

131b: the first light source group

132: Second surface light source unit

132a: second light guide unit

132b: the second light source group

133: Optical film

133a: reflector

133b: Diffuser

133c, 133d: brightness enhancement film

133e: Functional film layer

140: first prism column

141: first bevel

142: First Side

143: Second Side

150: Roller

151: pattern

160: second prism column

162: second bevel

163: Third Side

164: Fourth Side

170: Control unit

B: backlight

L1: first plane light

L2: second plane light

G: Gap

θ1, θ3: incident angle

θ2, θ4: bottom angle

S: Spacing

R: interval block

X, Y, Z: coordinate axes

【detailed description】

A number of embodiments of the present invention will be disclosed in the following diagrams. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these various practical details should not be used to limit the invention. In addition, the drawings are for illustrative purposes only and are not drawn to original scale. For ease of understanding, the same components will be described with the same symbols in the following description.

Firstly, the display in the following embodiments may be a display applied to a slot machine. More specifically, in the displays of the following embodiments, continuously scrolling patterns can be displayed. In addition, when the display is displaying a continuous scrolling pattern, it can present a three-dimensional (three-dimensional) visual effect of depth or back and forth, and when the display is not displaying a continuous scrolling pattern, it can present a flat (two-dimensional) display effect , but the present invention is not limited to such applications. The display of the present invention can be applied to any display that needs to display a three-dimensional image effect of depth or front and back, and timely switch from a three-dimensional image effect to a two-dimensional image display.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is an exploded view of a display according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of FIG. 1 on the XZ plane. As shown in FIG. 1 , the display 10 may include a display panel 100, a backlight module 120, and a scroll wheel 150, wherein the backlight module 120 may include three light-transmitting regions 121 and a light-emitting region 123, and each light-transmitting region 121 may be arranged in the direction Y. In a row, the light emitting regions 123 may be arranged around the light transmitting regions 121 . In other embodiments, there may be only one strip-shaped light-transmitting region, and the position occupied by the strip-shaped light-transmitting region is equivalent to the positions occupied by the three light-transmitting regions 121 in this embodiment. That is, the elongated light-transmitting region can be formed by connecting three light-transmitting regions 121 in this embodiment. In one embodiment, the roller 150 may have a plurality of patterns 151 , and the roller 150 is disposed opposite to the light-transmitting region 121 . In this way, when the scroll wheel 150 rotates, the transparent area 121 and the part of the display panel 100 corresponding to the transparent area 121 can be seen through, so that the continuous scrolling pattern 151 on the scroll wheel 150 is presented in front of the user.

In one embodiment, the transparent region 121 can be substantially an opening. In other words, the light-transmitting area 121 can be a channel on the backlight module 120 penetrating through the front and rear surfaces of the backlight module 120 , and any directional light can travel in the channel without being blocked. That is, when the roller 150 rotates, the rotating pattern 151 on the roller 150 can be presented in front of the user through the light-transmitting area 121 .

In some embodiments, the light-transmitting region 121 can be substantially a region on the backlight module 120 that does not have light-guiding capability. Specifically, referring to FIG. 1 , the backlight module 120 can be a side-type backlight module 120, which can include a first light source module 122, and the first light source module 122 includes two light source groups 122a, 122b As well as the light guide plate 124 , the two light source groups 122 a , 122 b are respectively located on two side walls of the light guide plate 124 in the Z direction, and emit light toward the light guide plate 124 . The light source groups 122a, 122b are, for example, fluorescent tubes or a plurality of light emitting diodes arranged along the Y direction. The first light source module 122 is used to provide the backlight B to the display panel 100, that is to say, the light emitted by the light source groups 122a, 122b can be converted into planar light (backlight B) through the light guide plate 124, and emitted to the display through the light output area 123. Panel 100. The light-transmitting area 121 on the light guide plate 124 may not have microstructures or dots for destroying the total reflection of light, so the light-transmitting area 121 is not like the light-emitting area 123, which can convert the light emitted by the light source groups 122a and 122b into flat light and emit it to the display. Panel 100. In other words, the light guide plate 124 of the light-transmitting area 121 can be flat, and has no ability to deflect the light emitted by the light source groups 122a and 122b toward the display panel 100. However, if the light travels within the scope of the light-transmitting area 121 Nor will it be hindered. That is, when the roller 150 rotates, the image of the roller 150 can still pass through the light-transmitting area 121 and cooperate with the part of the display panel 100 corresponding to the light-transmitting area 121 to be seen through, so that the continuous scrolling pattern 151 on the wheel 150 is presented in front of the user. In addition, it should be noted that the number of light source groups 122a, 122b is just an example, and can be adjusted according to requirements.

Please continue to refer to FIG. 1. It should be known that, in addition to the first light source module 122, the backlight module 120 can also stack one or more optical films on the light guide plate 124 according to actual needs (FIG. 1 is for the sake of simplification of the diagram. The optical film is not shown). The optical film may include a reflective sheet, a diffuser, or at least one brightness enhancement film, etc., and the position on the optical film corresponding to the light-transmitting region 121 may also be hollowed out (that is, an opening is formed) or for the position of the light-transmitting region 121 Form a flat light-transmitting structure that can only let light pass through, and can be adjusted according to actual needs.

Please continue to refer to FIG. 1 and FIG. 2 , the display 10 may further include a second light source module 130 , a first prism column 140 and a second prism column 160 . In this embodiment, by virtue of the arrangement of the second light source module 130 , the first prism column 140 and the second prism column 160 , when the scroll wheel 150 rolls, the display 10 can present a three-dimensional image effect of the scroll wheel 150 rotating. When the image of the scroll wheel 150 does not need to be presented, the display 10 is made to present a two-dimensional picture of a general flat display, and the user will not feel that the picture of the display panel 100 of the display 10 is on the opposite side of the corresponding scroll wheel 150 when presenting a two-dimensional picture. There is a distinct shadow or dark band at the location. In order to achieve the above purpose, the positional relationship of each component in the display 10 will be described in detail below.

1 and 2, the backlight module 120 can be located between the display panel 100 and the second light source module 130 and at the same time the backlight module 120 can be located between the display panel 100 and the first prism column 140, the second light source module 130 can be Located between the roller 150 and the backlight module 120 , the first prism column 140 may be located between the backlight module 120 and the roller 150 , and the second prism column 160 may be located between the first prism column 140 and the roller 150 . More specifically, a display panel 100 , a backlight module 120 , a first prism column 140 , a second prism column 160 and a scroll wheel 150 are sequentially disposed inside the display 10 along the direction X (horizontal direction). Moreover, the second light source module 130 , the first prism column 140 and the second prism column 160 are arranged in sequence along the direction Z (vertical direction) at the rear end of the backlight module 120 .

In more detail, the second light source module 130 may include a first surface light source part 131 and a second surface light source part 132 , wherein the first surface light source part 131 is located between the backlight module 120 and the second surface light source part 132 . In some embodiments, the first surface light source part 131 and the second surface light source part 132 may be substantially located on the same plane. The first prism column 140 has a first slope 141, and the front projection of the first slope 141 on the second light source module 130 is at least partly or completely located on the first surface light source part 131, and at the same time, the first slope 141 is on the front of the backlight module 120. The projection at least partially overlaps with the light-transmissive area 121 . The orthographic projection of the roller 150 on the second light source module 130 is at least partially on the second surface light source portion 132 , and the orthographic projection of the roller 150 on the backlight module 120 at least partially overlaps with the light-transmitting area 121 .

The first surface light source part 131 is used to provide the first planar light L1, and the second surface light source part 132 is used to provide the second planar light L2. When the display 10 does not need to display the image of the scroll wheel 150, the first surface light source part 131 emits the first plane light L1 toward the first slope 141, and the second surface light source part 132 does not emit the second plane light L2, wherein the first The slope 141 can be used to reflect the first plane light L1 so that the first plane light L1 passes through the light-transmitting region 121 to the display panel 100 . Meanwhile, the first light source module 122 of the backlight module 120 also provides the backlight B to the display panel 100 . In this way, the parts of the display panel 100 corresponding to the light-transmitting area 121 and the light-emitting area 123 of the backlight module 120 both receive the forward light source, so that the display panel 100 can display images with uniform brightness. That is, the display panel 100 will not appear darker or have shadows at the positions corresponding to the light-transmitting regions 121 , thereby achieving the effect of presenting a two-dimensional image of a general flat-panel display.

In one embodiment, there is a gap G between the second prism column 160 and the first slope 141 of the first prism column 140 . The first prism column 140 is a light-transmitting column with a refractive index greater than 1, so that before the first plane light L1 enters the gap G from the first prism column 140, if the incident angle θ1 of the first plane light L1 on the first slope 141 is greater than At the critical angle, total reflection can occur on the first slope 141, and the first slope 141 can reflect the first plane light L1 toward the light-transmitting area 121, so that the first plane light L1 passes through the light-transmitting area 121 to the display panel 100.

Viewed from the perspective of FIG. 2, the first prism column 140 can have a first side 142 and a second side 143 respectively connected to the first slope 141, wherein the first side 142 faces the first surface light source part 131, and the second side 143 faces the light-transmitting region 121 . The first plane light L1 is incident on the first side 142 and enters the first prism column 140 , and is totally reflected on the first inclined surface 141 to be emitted from the second side 143 and pass through the light-transmitting region 121 to reach the display panel 100 . In yet another embodiment, the cross section of the first prism column 140 on the XZ plane may be a right triangle, and the base angle θ2 of the right triangle may range from 30 degrees to 60 degrees. In addition, in a preferred embodiment, the cross-section of the first prism column 140 on the XZ plane can be an isosceles right triangle, the range of the base angle θ2 can be about 45 degrees, and the size of the incident angle θ1 can be roughly the same as the base angle θ1. The angle θ2 is equal.

Next, when the display 10 needs to present the rotating image of the scroll wheel 150, in order to create a three-dimensional effect of depth or front and back between the scroll wheel 150 and the picture displayed on the display panel 100, the first surface light source unit 131 no longer provides the first plane light L1. , and the second surface light source unit 132 emits the second plane light L2 toward the roller 150 . In this way, after the second plane light L2 irradiates the scroll wheel 150 , the image of the scroll wheel 150 can be presented in front of the user through the second prism column 160 , the first prism column 140 and the display panel 100 . At the same time, the first light source module 122 of the backlight module 120 also provides the backlight B to the display panel 100 , so that the image displayed on the display panel 100 and the image of the scroll wheel 150 have a three-dimensional effect.

Viewed from the perspective of FIG. 2 , the second prism column 160 may include a third side 163, a fourth side 164 and a second slope 162, wherein the third side 163 and the fourth side 164 are respectively connected to the second slope 162, And the fourth side 164 faces the roller 150 , the third side 163 is connected to the fourth side 164 and the second slope 162 , and the second slope 162 can be disposed facing the first slope 141 with a gap G between them. After the second plane light L2 irradiates the roller 150, the light reflected by the roller 150 can enter the fourth side 164 and enter the second prism column 160, and pass through the second inclined surface 162, the first prism column 140, and the light-transmitting area. 121 and the display panel 100 are presented in front of the user. In this way, through the arrangement of the second prism column 160 , the optical effective distances of the image of the roller 150 via the first prism column 140 and the second prism column 160 are approximately equal, and aberrations are less likely to occur.

It can be known from the above-mentioned embodiments that the display 10 can turn on the first surface light source part 131 and the second surface light source part 132 of the second light source module 130 respectively, and through the configuration of the first prism column 140 and the second prism column 160, And selectively create three-dimensional and two-dimensional image effects. It is worth mentioning that this embodiment does not need to additionally set up other switching structures, such as polymer-dispersed liquid crystal layers (Polymer-Dispersed Liquid Crystals, PDLC), etc., in order to block the image of the roller 150 in the two-dimensional display mode, so The display 10 of this embodiment has the advantage of low cost. In addition, the display 10 of this embodiment can be manufactured with a flat display panel 100 , which has a simple manufacturing process and a high yield.

Next, the technique of lighting up the first surface light source unit 131 and the second surface light source unit 132 will be further introduced, which is detailed in the following description.

Please refer to FIG. 3 , which is a front view of the second light source module 130 shown in FIG. 2 in the -Z direction. As shown in FIG. 3 , the first surface light source part 131 of the second light source module 130 includes a first light guide unit 131a and a first light source group 131b, and the second surface light source part 132 includes a second light guide unit 132a and a second light source group 131b. The light source group 132b, wherein, the first light source group 131b and the second light source group 132b are separated by a distance S, and the first light source group 131b provides light for the first light guide unit 131a, and the second light source group 132b provides the second light guide unit 132b. Light unit 132a light. In specific applications, the light sources of the first light source group 131b and the second light source group 132b may be light emitting diodes, but not limited thereto. In addition, it should be noted that the light sources of the first light source group 131b and the light source of the second light source group 132b can be disposed on two circuit boards separately, or can be disposed on the same circuit board with a distance S apart according to actual needs. In this way, when the first light source group 131b and the second light source group 132b are turned on respectively, the first light guide unit 131a and the second light guide unit 132a can conduct the first light source group 131b and the second light source group 132b respectively. light rays to respectively form the first plane light L1 and the second plane light L2 (as shown in FIG. 2 ).

In one embodiment, the first light source group 131b is located on one side of the first light guide unit 131a, the second light source group 132b is located on one side of the second light guide unit 132a, and the first light guide unit 131a passes through the gap The block R is connected to the second light guiding unit 132a. That is, the spacer block R is located between the first light guiding unit 131a and the second light guiding unit 132a. Furthermore, in a variant embodiment, the spacing S also faces the spacer block R. The configuration of the spacer block R can prevent the light from the first light source group 131b from being transmitted to the second light guide unit 132a, or the light from the second light source group 132b from being transmitted to the first light guide unit 131a.

In a specific application, the plate material within the range of the spacer block R may be in the shape of a flat plate without microstructures or dots that reflect or deflect light. In contrast, the first light guide unit 131a and the second light guide unit 132a may have microstructures or dots that reflect or deflect light, so that the light from the first light source group 131b and the second light source group 132b can pass through the first light source group 131b and the second light source group 132b respectively. The light guiding unit 131a and the second light guiding unit 132a are transformed into the first plane light L1 and the second plane light L2.

Please continue to refer to FIG. 3 , in order to separately control the first light source group 131b and the second light source group 132b to be turned on, the display 10 may further include a control unit 170 . The control unit 170 can be directly or indirectly electrically connected with the first light source group 131b and the second light source group 132b. The control unit 170 may be a logic circuit or a complex programmable logic device (Complex Programmable Logic Device, CPLD), but not limited thereto.

The control unit 170 can be set to turn on the first surface light source part 131 and turn off the second surface light source part 132 in the first display mode, and turn on the second surface light source part 132 and turn off the first surface light source part 131 in the second display mode. . In addition, the first light source module 122 of the backlight module 120 can provide the backlight B to the display panel 100 no matter in the first display mode or in the second display mode (please also refer to FIG. 2 ). Specifically, the first display mode can be the two-dimensional (plane) display mode of the foregoing embodiments. Taking the display of a slot machine as an example, it can be a display screen of a credit list or a display animation when winning a prize; and the second The display mode can be the three-dimensional (stereoscopic) display mode of the aforementioned embodiments, such as presenting the rotation of the reel of the slot machine. In this way, the control unit 170 can selectively turn on the first surface light source portion 131 and turn off the second surface light source portion 132 to achieve the effect of the two-dimensional or three-dimensional display mode of the foregoing embodiments.

It should be known that, in addition to the first surface light source part 131 and the second surface light source part 132, the second light source module 130 can also stack one or more optical films on at least part of the first light guide unit 131a, Above or below the second light guide unit 132a and the spacer block R, wherein the optical film may include a reflective film, a diffuser film, and at least one brightness enhancement film.

For more details, please refer to FIG. 3 and FIG. 4 together, wherein FIG. 4 is an exploded view illustrating the second light source module 130 in FIG. 2 . The second light source module 130 may further include a plurality of optical films 133 , and each optical film 133 may have a functional film layer. For example, the optical film 133 of the second light source module 130 can be but not limited to reflective film 133a, diffusion film 133b, brightness enhancement film 133c, 133d and so on. Moreover, the function of the functional film layer on the optical film 133 can vary with the type of the optical film 133. For example, the functional film layer 133e of the brightness enhancement film 133c can have the function of enhancing the first light guide unit 131a and the second light guide unit 131a. The function of the brightness of the plane light emitted by the light unit 132a.

It is worth mentioning that, in one embodiment, the functional film layer of the optical film 133 may be at least partially stacked on the first light guiding unit 131a, the second light guiding unit 132a and the spacer block R. As shown in FIG. Specifically, please refer to the partial enlarged view in FIG. 4 , taking the functional film layer 133e of the brightness enhancement film 133c as an example, the functional film layer 133e can be covered on the brightness enhancement film 133c in a roughly zigzag shape. That is, the functional film layer 133e may cover the range of the first light guiding unit 131a, the second light guiding unit 132a and the spacer block R, but is not limited thereto. As mentioned above, the optical film has a continuous functional film layer stacked at least on the first light guide unit 131a, the second light guide unit 132a and the spacer block R, which is relatively easy to manufacture and has no alignment problems in assembly. problem, and because there is a spacer R between the first light guide unit 131a and the second light guide unit 132a, the degree of mutual interference between the first light source group 131b and the second light source group 132b will also be reduced.

In another specific aspect, the brightness enhancement film 133c may not be provided with the functional film layer 133e at the position corresponding to the spacer block R, or the functional film layer 133e at the position of the brightness enhancement film 133c corresponding to the spacer block R Can be flat. That is to say, the functional film layer 133e in the reflection sheet 133a, the diffusion sheet 133b and the two brightness enhancement films 133c, 133d can be flat or have no light deflection, reflection or The brightening function is used to reduce the mutual interference of light from the first surface light source part 131 and the second surface light source part 132 .

Next, please refer to FIG. 5 and FIG. 6 , FIG. 5 is an exploded view of a display 20 according to another embodiment of the present invention, and FIG. 6 is a cross-sectional view of the display of FIG. 5 on the XZ plane. As shown in Figure 5, the difference between the display 20 of this embodiment and the embodiment of Figure 1 is that the light-emitting surfaces of the first surface light source part 131 and the second surface light source part 132 of this embodiment can be arranged oppositely, and the first prism The column 140 and the second prism column 160 can be arranged between the first surface light source part 131 and the second surface light source part 132, wherein the second surface light source part 132 emits the second light toward the second slope 162 of the second prism column 160. The plane light L2, and the second inclined surface 162 can be used to reflect the second plane light L2, so that the second plane light L2 is irradiated to the roller 150 . The second plane light L2 irradiated to the roller 150 will be reflected from the roller 150 and finally partially enter the display panel 100 .

In one embodiment, the second prism column 160 can be a light-transmitting column with a refractive index greater than 1, so that the second plane light L2 enters the gap G from the second prism column 160. If the second plane light L2 passes through the second When the incident angle θ3 of the slope 162 is greater than the critical angle, total reflection can occur on the second slope 162 .

In more detail, viewed from the perspective of FIG. 6 , the second surface light source part 132 and the roller 150 can face the third side 163 and the fourth side 164 of the second prism column 160 respectively. When the display 10 needs to present an image of the rotating wheel 150 , the control unit 170 can control the second surface light source part 132 to emit the second plane light L2 . At this time, the second plane light L2 can be forwardly incident on the third side 163 and enter the second prism column 160, and the second plane light L2 can be totally reflected on the second slope 162, and exit from the fourth side 164 and Irradiate onto the roller 150. In short, in this embodiment, the second plane light L2 can pass through the second inclined surface 162 of the second prism column 160 and indirectly irradiate the roller 150 . In addition, the backlight module 120 can still provide the backlight B to the display panel 100 while the second planar light L2 irradiates the roller 150, wherein the second planar light L2 irradiated to the roller 150 will be reflected from the roller 150 and finally partly emitted. into the display panel 100. In this way, the position of the image of the scroll wheel 150 and the image of the display panel 100 can be changed front and rear, so as to present a three-dimensional visual effect.

In a variant embodiment, the cross section of the second prism column 160 on the XZ plane may be a right triangle, and the base angle θ4 of the right triangle may range from 30 degrees to 60 degrees. In addition, in a preferred embodiment, the cross-section of the second prism column 160 on the XZ plane can be an isosceles right triangle, the range of the base angle θ4 can be 45 degrees, and the size of the critical angle is roughly equal to the base angle θ4 .

Similarly, when the display 20 does not need to present the rotating image of the scroll wheel 150, but only needs to present the image of the display panel 100, the control unit 170 can only control the first surface light source part 131 to emit light, while the second surface light source part 132 does not emit light. , and at the same time, the backlight module 120 still provides the backlight B to the display panel 100 . In this way, the light-transmitting area 121 of the display panel 100 corresponding to the backlight module 120 can receive the first plane light L1, and the light-emitting area 123 of the display panel 100 corresponding to the backlight module 120 can receive the backlight B of the backlight module 120 itself. , so that the display panel 100 can display a flat image with uniform brightness.

To sum up, the display of the above embodiment can add at least two different optical elements through two prism columns. The effect of 3D image mode switching. In addition, the above-mentioned elements of the prism column, the first light source module, and the second optical module can be matched with a display panel displayed in a planar manner. The structure is simple, the cost is low and the yield is high.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall prevail as defined in the scope of the appended patent application.

Claims (14)

1. A display comprising: a display panel; A backlight module having at least one light-transmitting area, the backlight module having a first light source module for providing a backlight to the display panel; A second light source module, including a first surface light source part for providing a first plane light, wherein the backlight module is located between the display panel and the second light source module; and A first prism column, the backlight module is located between the display panel and the first prism column, and the first prism column has a first slope for reflecting the first plane light so that the first plane light passes through the light-transmissive area leading to the display panel; a roller, the roller is arranged opposite to the at least one light-transmitting area, and the first prism column is located between the backlight module and the roller; Wherein, the second light source module further includes a second surface light source part for providing a second plane light to the roller; A second prism column is located between the first prism column and the roller. 2 . The display as claimed in claim 1 , wherein there is a gap between the second prism column and the first slope of the first prism column, and the first planar light is totally reflected on the first slope. 3 . 3 . The display as claimed in claim 1 , wherein the second prism column has a second slope, and the second slope is disposed facing the first slope and separated from each other by a gap. 4. The display as claimed in claim 1, wherein the first surface light source part is located between the backlight module and the second surface light source part. 5. The display as claimed in claim 3, wherein the first prism column is located between the first surface light source part and the second surface light source part. 6. The display device according to claim 5, wherein the second prism column has two sides respectively connected to the second inclined surface, and the second surface light source part and the roller respectively face the sides of the second prism column. The two sides, the second inclined surface of the second prism column are used to reflect the second plane light so that the second plane light illuminates the roller. 7. The display according to claim 1, wherein the first surface light source part comprises a first light guide unit and a first light source group, and the second surface light source part comprises a second light guide unit and a The second light source group, the first light source group and the second light source group are separated by a distance, and the first light source group provides the light of the first light guide unit, and the second light source group provides the second light guide unit Light unit rays. 8. The display according to claim 7, wherein the first light guide unit is connected to the second light guide unit through a spacer block. 9. The display according to claim 8, wherein the second light source module further comprises an optical film, the optical film has a functional film layer, and the functional film layer is at least partially overlapped with the first The light guide unit, the second light guide unit and the spacer block. 10. The display according to claim 1, wherein the cross section of the first prism column and the second prism column is a right triangle, and a base angle of the right triangle ranges from 30 degrees to 60 degrees. between degrees. 11. The display as claimed in claim 10, wherein the cross-sections of the first prism column and the second prism column are an isosceles right triangle. 12. The display according to claim 1, further comprising a control unit, the control unit turns on the first surface light source part and turns off the second surface light source part in a first display mode, and in a In the second display mode, the second surface light source part is turned on and the first surface light source part is turned off. 13. The display according to claim 12, wherein the first light source module provides the backlight to the display panel both in the first display mode and in the second display mode. 14. The display as claimed in claim 1, wherein the light-transmitting region is an opening.