CN103941458A - Transparent display device - Google Patents
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- CN103941458A CN103941458A CN201410051057.4A CN201410051057A CN103941458A CN 103941458 A CN103941458 A CN 103941458A CN 201410051057 A CN201410051057 A CN 201410051057A CN 103941458 A CN103941458 A CN 103941458A
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Abstract
The invention provides a transparent display device. The transparent display device comprises a backlight module, a display panel and a switching panel. The backlight module comprises a light source and a light guide board. The display panel is arranged on the light emergent surface of the light guide board. The switching panel and the backlight module are arranged on the same side of the display panel. The switching panel comprises a first substrate, a second substrate, a polymer dispersion liquid crystal layer, a first electrode layer and a second electrode layer, wherein the second substrate is opposite to the first substrate, the polymer dispersion liquid crystal layer is arranged between the first substrate and the second substrate, the first electrode layer is arranged between the first substrate and the polymer dispersion liquid crystal layer, and the second electrode layer is arranged between the polymer dispersion liquid crystal layer and the second substrate. The first substrate is divided into a plurality of first electrode patterns which are separated from one another and electrically independent of one another. In addition, the invention further provides another transparent display device.
Description
Technical field
The invention relates to a kind of display device, and relate to especially a kind of transparent display.
Background technology
Along with showing the development in field, transparent display is developed gradually.Transparent display refers to that transparent display itself has penetrability to a certain degree, to allow user can know the background frame of watching display panel rear.Transparent display is applicable to multiple application such as building window, automotive window, shopper windows, thereby enjoys market to pay close attention to.But, in known technology, the all viewing area of transparent display is all for transparent demonstration, be that all viewing areas of transparent display are all the display frame of while display background picture and display panel, and cannot switch to the nontransparent display mode or the nontransparent display mode of part transparent part that show the display frame of display panel and be difficult for display background picture.
Summary of the invention
The invention provides a kind of transparent display, it can switch to the nontransparent display mode of part transparent part.
The invention provides another kind of transparent display, it also can switch to the nontransparent display mode of part transparent part.
Transparent display of the present invention comprises backlight module, display panel and switches panel.Backlight module comprises sending at least one light source and the light guide plate of illuminating bundle.Light guide plate has exiting surface, with respect to the bottom surface of exiting surface and connect the incidence surface of exiting surface and bottom surface.Light source is disposed at by the incidence surface of light guide plate.Illuminating bundle enters light guide plate and leaves light guide plate by exiting surface from incidence surface.Display panel configurations is on the exiting surface of light guide plate.Switching panel and backlight module are arranged at the same side of display panel.Switch panel and comprise first substrate, second substrate, polymer dispersed liquid crystal layer, the first electrode layer and the second electrode lay.Second substrate is with respect to first substrate.Polymer dispersed liquid crystal layer is disposed between first substrate and second substrate.The first electrode layer is disposed between first substrate and polymer dispersed liquid crystal layer and is divided into separated from one another and electrical multiple the first electrode patterns independently.The second electrode lay is disposed between polymer dispersed liquid crystal layer and second substrate.When transparent display is during in the nontransparent display mode of the transparent part of some, between at least one the first electrode pattern and the second electrode lay, there is in fact a potential difference (PD), so that be clear state with the part polymer dispersed liquid crystal layer of at least one the first electrode pattern overlapping.The background light beam of part is through the part polymer dispersed liquid crystal layer, light guide plate and the display panel that are clear state, and formation one background frame light beam.Between another first electrode pattern and the second electrode lay, there is not in fact potential difference (PD), so that the polymer dispersed liquid crystal layer of another part that another first electrode pattern overlaps is therewith scattering states.The polymer dispersed liquid crystal layer that is another part of scattering states stops that the background light beam of another part is passed to display panel.Illuminating bundle is converted to a display frame light beam through display panel.
Transparent display of the present invention comprises backlight module, display panel and at least one switching panel.Backlight module comprises at least one the first light source, the first light guide plate, multiple the first optical microstructures, multiple the second optical microstructures, display panel and at least one switching panel.The first light source is in order to send the first illuminating bundle.The first light guide plate has the first exiting surface, with respect to the first bottom surface of the first exiting surface, connect the first incidence surface of the first exiting surface and the first bottom surface.The first light source is disposed at by the first incidence surface of the first light guide plate.The first illuminating bundle enters the first light guide plate and leaves the first light guide plate by the first exiting surface from the first incidence surface.The first light guide plate is divided at least one the first optical microstructures setting area and is positioned at least one the first optical microstructures outside the first optical microstructures setting area without setting area.The first optical microstructures is disposed on the first optical microstructures setting area and exposes the first optical microstructures without setting area.The second optical microstructures be disposed at the first optical microstructures without on setting area and expose the first optical microstructures.The light transmission rate of arbitrary the second optical microstructures is greater than the light transmission rate of arbitrary the first optical microstructures.Display panel configurations is on the first exiting surface of the first light guide plate.Switching panel and backlight module is arranged at the same side of display panel and overlaps with the second optical microstructures.Switch panel comprise first substrate, with respect to the second substrate of first substrate, be disposed at polymer dispersed liquid crystal layer between first substrate and second substrate, be disposed at the first electrode layer between first substrate and high polymer dispersed liquid crystal and be disposed at polymer dispersed liquid crystal layer the second electrode lay between second substrate.
In one embodiment of this invention, when above-mentioned transparent display is during in a full frame display mode, between the first electrode layer and the second electrode lay, there is not in fact potential difference (PD).Polymer dispersed liquid crystal layer is scattering states.The polymer dispersed liquid crystal layer that is scattering states stops that the background light beam of part is passed to display panel.Illuminating bundle is converted to display frame light beam through display panel.
In one embodiment of this invention, when above-mentioned transparent display is during in an all-transparent display mode, between the first electrode layer and the second electrode lay, there is in fact a potential difference (PD), so that polymer dispersed liquid crystal layer is clear state.Background light beam is through the polymer dispersed liquid crystal layer, light guide plate and the display panel that are clear state, and formation background frame light beam.Illuminating bundle is converted to display frame light beam through display panel.
In one embodiment of this invention, above-mentioned light guide plate is disposed at and switches between panel and display panel.
In one embodiment of this invention, above-mentioned switching panel is disposed between light guide plate and display panel.
In one embodiment of this invention, above-mentioned the second electrode lay is divided into multiple the second electrode patterns.The second electrode pattern aligns in fact with the first electrode pattern.
In one embodiment of this invention, the comprehensive covering second substrate of above-mentioned the second electrode lay and contain multiple the first electrode patterns.
In one embodiment of this invention, above-mentioned transparent display more comprises touch-control sensing assembly.Display panel configurations is between touch-control sensing assembly and light guide plate.
In one embodiment of this invention, the first above-mentioned light guide plate is disposed at and switches between panel and display panel.
In one embodiment of this invention, above-mentioned switching panel is disposed between the first light guide plate and display panel.
In one embodiment of this invention, above-mentioned backlight module more comprises at least one the second light guide plate.The second light guide plate is fixed on the first optical microstructures of the first light guide plate without on setting area.The first light guide plate is between the second light guide plate and display panel.
In one embodiment of this invention, the second above-mentioned light guide plate is between the second optical microstructures and the first light guide plate.
In one embodiment of this invention, above-mentioned transparent display more comprises transparent optical cement.The first optical microstructures that the second light guide plate is attached to the first light guide plate through transparent optical cement is without on setting area.
In one embodiment of this invention, the second above-mentioned light guide plate has towards the second exiting surface of the first bottom surface, with respect to the second bottom surface of the second exiting surface and connect the second incidence surface of the second exiting surface and the second bottom surface.Backlight module also comprises sending at least one secondary light source of the second illuminating bundle.Secondary light source is disposed at by the second incidence surface of the second light guide plate.The second illuminating bundle enters the second light guide plate and leaves the second light guide plate by the second exiting surface from the second incidence surface.
In one embodiment of this invention, when above-mentioned transparent display is during in the nontransparent display mode of the transparent part of some, between the first electrode layer and the second electrode lay, there is in fact a potential difference (PD).At least the polymer dispersed liquid crystal layer of part is clear state.Background light beam passes the first optical microstructures of the part polymer dispersed liquid crystal layer, the second optical microstructures and the first light guide plate that are clear state without setting area.Pass the display panel of part without the background light beam of setting area from the first optical microstructures, to form background frame light beam.The first light source opens to send the first illuminating bundle.The first illuminating bundle of part is guided and passes through the first optical microstructures setting area of the first light guide plate by the first optical microstructures.Pass the display panel of another part from the first illuminating bundle of the first optical microstructures setting area, to form the first display frame light beam.
In one embodiment of this invention, when above-mentioned transparent display is during in the nontransparent display mode of the transparent part of some, secondary light source is closed and is not sent the second illuminating bundle.
In one embodiment of this invention, when above-mentioned transparent display is during in a full frame display mode, between the first electrode layer and the second electrode lay, do not have in fact potential difference (PD), and polymer dispersed liquid crystal layer is scattering states.Be the polymer dispersed liquid crystal layer scattering background light beam of scattering states, with the background light beam that stops part through the first optical microstructures of the first light guide plate without setting area and display panel.The first light source opens to send the first illuminating bundle.The first illuminating bundle of part is guided and passes through the first optical microstructures setting area of the first light guide plate by the first optical microstructures.Pass the display panel of part from the first illuminating bundle of the first optical microstructures setting area, to form the first display frame light beam.The second illuminating bundle is opened and sent to secondary light source.The first optical microstructures that the second illuminating bundle was guided and passed the second light guide plate, the first light guide plate by the second optical microstructures is without setting area and display panel, to be converted to the second display frame light beam.
In one embodiment of this invention, above-mentioned transparent display more comprises the first light source controller being electrically connected with the first light source and the secondary light source controller being electrically connected with secondary light source.When transparent display is during in full frame display mode, the first illuminating bundle that the first light source sends has the first light intensity on the first exiting surface of the first light guide plate.The second illuminating bundle that secondary light source sends has the second light intensity on the first exiting surface of the first light guide plate.The first optical microstructures through the second light guide plate and the first light guide plate has the 3rd light intensity without the background light beam of setting area on the first exiting surface of the first light guide plate.The first light source controller and secondary light source controller make the first light intensity equal in fact the summation of the second light intensity and the 3rd light intensity.
In one embodiment of this invention, above-mentioned backlight module more comprises reflector plate.The first light guide plate is disposed between reflector plate and display panel.The first optical microstructures that reflector plate covers the first optical microstructures setting area of the first light guide plate and exposes the first light guide plate is without setting area.Reflector plate stops the part background light beam transmitting to the first optical microstructures setting area.Secondary light source is hidden in reflector plate below.
In one embodiment of this invention, above-mentioned multiple the first optical microstructures are multiple sites, and multiple the second optical microstructures is the multiple printing opacity protrusions towards the direction projection away from display panel.
In one embodiment of this invention, the first above-mentioned electrode layer is divided into separated from one another and electrical multiple the first electrode patterns independently.
In one embodiment of this invention, above-mentioned transparent display more comprises touch-control sensing assembly.Display panel configurations is between touch-control sensing assembly and the first light guide plate.The first optical microstructures that touch-control sensing assembly covers the first optical microstructures setting area of the first light guide plate and exposes the first light guide plate is without setting area.
Based on above-mentioned, in the transparent display of one embodiment of the invention, display panel rear is provided with backlight module and switches panel.See through and be designed to each other electrically independently multiple electrode patterns by switching at least one electrode layer of panel, switch panel and can there is fringe area and clear area simultaneously.Background light beam can be passed to display panel through switching the clear area of panel and the light guide plate of backlight module, and then make can display background picture with the corresponding position, clear area of switching panel in transparent display.On the other hand, background light beam can be switched the fringe area scattering of panel and be difficult for being passed to display panel, thereby can be difficult for display background picture in order to show the picture of display panel with the corresponding position, fringe area of switching panel in transparent display.In brief, the transparent display of one embodiment of the invention can be realized transparent, the nontransparent display effect of part of part through the electrode pattern of subregion.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate appended graphic being described in detail below.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the transparent display of one embodiment of the invention;
Fig. 2 is the diagrammatic cross-section of the transparent display of another embodiment of the present invention;
Fig. 3 be Fig. 1 switching panel on look schematic diagram;
The situation of the transparent display that Fig. 4 shows Fig. 1 in the time of a full frame display mode;
The situation of the transparent display that Fig. 5 shows Fig. 1 in the time of an all-transparent display mode;
Fig. 6 is the diagrammatic cross-section of the transparent display of further embodiment of this invention;
Fig. 7 is the diagrammatic cross-section of the transparent display of yet another embodiment of the invention;
Fig. 8 is the diagrammatic cross-section of the transparent display of one embodiment of the invention;
Fig. 9 is the diagrammatic cross-section of the transparent display of another embodiment of the present invention;
The situation of the transparent display that Figure 10 shows Fig. 8 in the time of a full frame display mode;
Figure 11 is the situation that the transparent display of Fig. 8 is applied to ball spring game machine;
Figure 12 is the situation that the transparent display of Fig. 8 is applied to ball spring game machine;
Figure 13 is the situation that the transparent display of Fig. 8 is applied to ball spring game machine.
[primary clustering symbol description]
100,100A, 100B, 100C, 200,200A: transparent display
110,210: backlight module
112: light source
114: light guide plate
114a: exiting surface
114b: bottom surface
114c: incidence surface
120,219: display panel
120a: viewing area
122: image element array substrates
124: subtend substrate
126: display medium
128: polaroid
130: switch panel
132,232: first substrate
134,234: second substrate
136,236: polymer dispersed liquid crystal layer
138,238: the first electrode layers
138a, 138b, 138c, 238a: the first electrode pattern
139,139B, 239: the second electrode lay
139a, 239a: the second electrode pattern
140,260: touch-control sensing assembly
212: the first light sources
214: the first light guide plate
214a: the first exiting surface
214b: the first bottom surface
214c: the first incidence surface
214d: the first optical microstructures setting area
214e: the first optical microstructures is without setting area
216: the first optical microstructures
218: the second optical microstructures
220: the second light guide plate
220a: the second exiting surface
220b: the second bottom surface
220c: the second incidence surface
222: transparent optical cement
224: secondary light source
226: reflector plate
228: blast sheet
230: switch panel
240: the first light source controllers
250: secondary light source controller
D: direction
L: illuminating bundle
L ': display frame light beam
L1: the first illuminating bundle
L1 ': the first display frame light beam
L2: the second illuminating bundle
L2 ': the second display frame light beam
P: ball spring game machine
R1: transparent viewing area
R2: nontransparent viewing area
R3, R4: region
R41: subregion
X: background light beam
X ': background frame light beam.
Embodiment
Fig. 1 is the diagrammatic cross-section of the transparent display of one embodiment of the invention.Please refer to Fig. 1, transparent display 100 is disposed on the bang path of background light beam X.Transparent display 100 comprises backlight module 110, display panel 120 and switches panel 130.Backlight module 110 comprises sending at least one light source 112 and the light guide plate 114 of illuminating bundle L.Light guide plate 114 has exiting surface 114a, with respect to the bottom surface 114b of exiting surface 114a and connect the incidence surface 114c of exiting surface 114a and bottom surface 114b.Light source 112 is disposed at by the incidence surface 114c of light guide plate 114.Illuminating bundle L enters light guide plate 114 and leaves light guide plate 114 by exiting surface 114a from incidence surface 114c.In other words, backlight module 110 is a side injection type backlight module.In the present embodiment, the material that the selecting of light guide plate 114 materials has high light transmission rate is good, for example plastics, but the present invention is as limit, and in other embodiments, light guide plate 114 also can be selected other suitable light transmissive material.In the present embodiment, light source 112 is for example the LED optical strip of multiple light emitting diode compositions, but the present invention is not as limit, in other embodiments, light source 112 also can be the light source of cold-cathode fluorescence lamp (cold cathode fluorescent lamp, CCFL) or other suitable kind.
Display panel 120 is disposed on the exiting surface 114a of light guide plate 114.Display panel 120 can be penetration display panel or half-transparent half-reflection display panel.In the present embodiment, display panel 120 comprise image element array substrates 122, with respect to the subtend substrate 124 of image element array substrates 122 and the display medium 126 between image element array substrates 122 and subtend substrate 124.If display panel 120 is display panels (being that display medium 126 is liquid crystal), display panel 120 more can further comprise two polaroids 128 that configure respectively on image element array substrates 122 and subtend substrate 124.But the form of display panel of the present invention is not limited to above-mentioned, in other embodiments, display panel 120 also can be the display device of other type.All illuminating bundle L that can be sent by light source 112 through and make user watch a display frame, can by background light beam X through and make display device that user views and admires a background frame all display panel of the present invention in the category of wish protection.
Switching panel 130 and backlight module 110 are arranged at the same side of display panel 120.Furthermore, switching panel 130 and backlight module 110 can be arranged at a side of the close background light source that sends background light beam X.In the present embodiment, light guide plate 114 is configurable in switching between panel 130 and display panel 120.But, the invention is not restricted to this, Fig. 2 is the diagrammatic cross-section of the transparent display of another embodiment of the present invention, please refer to Fig. 2, transparent display 100A is similar to transparent display 100, therefore identical assembly represents with identical label, in transparent display 100A, switches panel 130 also configurable between light guide plate 114 and display panel 120.
Referring again to Fig. 1, switch panel 130 comprise first substrate 132, with respect to the second substrate 134 of first substrate 132, be disposed at polymer dispersed liquid crystal layer 136 between first substrate 132 and second substrate 134, be disposed at the first electrode layer 138 between first substrate 132 and polymer dispersed liquid crystal layer 136 and be disposed at polymer dispersed liquid crystal layer 136 the second electrode lay 139 between second substrate 134.Particularly, the first electrode layer 138 is divided into separated from one another and electrical multiple the first electrode pattern 138a independently.Fig. 3 be Fig. 1 switching panel on look schematic diagram, please refer to Fig. 3, in the present embodiment, each first electrode pattern 138a can be orthogonal, multiple the first electrode pattern 138a can line up an array.In other words, multiple the first electrode pattern 138a can be arranged in the form of nine grids.But, it should be noted that, multiple the first electrode pattern 138a of Fig. 3 illustrate the present invention, but not in order to limit the present invention.The arrangement mode of the shape of each the first electrode pattern 138a and multiple the first electrode pattern 138a all demand of visual reality does suitable design.All can by multiple electrode patterns of electrical independent operation all multiple the first electrode patterns of the present invention in the category of wish protection.
It is worth mentioning that, as shown in Figure 1, see through each other electrically multiple the first electrode pattern 138a independently, switch panel 130 and transparent display 100 can be divided into transparent viewing area R1 and nontransparent viewing area R2.Transparent viewing area R1 is in order to show part display frame and the background frame of display panel 120 simultaneously.Nontransparent viewing area R2 is difficult for display background picture in order to show the display frame of display panel 120 another parts.
In detail, as shown in Figure 1, when transparent display 100 is during in the nontransparent display mode of the transparent part of some, between at least one first electrode pattern 138b and the second electrode lay 139, there is in fact a potential difference (PD), so that be clear state with the part polymer dispersed liquid crystal layer 136 of the first electrode pattern 138b overlapping.Now, the background light beam X of part can pass the polymer dispersed liquid crystal layer 136, light guide plate 114 and the display panel 120 that are clear state, and forms a background frame light beam X '.Transparent display 100 sends the region (region overlapping with the first electrode pattern 138b) of background frame light beam X ' for transparent viewing area R1.At background frame light beam X ', through in transparent viewing area R1, the illuminating bundle L of part also can be converted to a display frame light beam L ' through the region of display panel 120 and the first electrode pattern 138b overlapping.Thus, the transparent viewing area R1 of transparent display 100 just can show part display frame and the background frame of display panel 120 simultaneously.
On the other hand, when transparent display 100 is during in the nontransparent display mode of the transparent part of some, at least between another the first electrode pattern 138c and the second electrode lay 139, there is not in fact potential difference (PD) so that with first electrode pattern 138c overlap another part polymer dispersed liquid crystal layer 136 be scattering states.The background light beam X that is another part of polymer dispersed liquid crystal layer 136 scatterings of another part of scattering states, is passed to display panel 120 with the background light beam X that stops another part.Background light beam X be difficult for through region (region overlapping with the first electrode pattern 138c) be nontransparent viewing area R2.Under background light beam X is difficult for through nontransparent viewing area R2, the illuminating bundle L of another part can be converted to a display frame light beam L ' through the region of part display panel 120 and the first electrode pattern 138c overlapping.Thus, the nontransparent viewing area R2 of transparent display 100 just can show display panel 120 another part display frame and be difficult for display background picture.
It should be noted that, the transparent display 100 of Fig. 1 is except being operable in the nontransparent display mode of the transparent part of part, and transparent display 100 also visual user's demand switches to full frame display mode or all-transparent display mode.Below utilize Fig. 4 and Fig. 5 that it is described.
The situation of the transparent display that Fig. 4 shows Fig. 1 in the time of a full frame display mode.When transparent display 100 is during in a full frame display mode, between the first electrode layer 138 and the second electrode lay 139, there is not in fact a potential difference (PD), all polymer dispersed liquid crystal layer 136 are scattering states, the polymer dispersed liquid crystal layer 136 that is scattering states can scattering background light beam X, to stop that most background light beam X is passed to display panel 120, and then make all viewing area 120a of display panel 120 be difficult for display background picture.Be difficult for being passed to display panel 120 times at most background light beam X, the illuminating bundle L that light source 112 sends can be converted to a display frame light beam L ' through all viewing area 120a of display panel 120.Thus, transparent display 100 can present the display frame of all viewing area 120a of display panel 120 and be difficult for display background picture.
The situation of the transparent display that Fig. 5 shows Fig. 1 in the time of an all-transparent display mode.When transparent display 100 is during in an all-transparent display mode, between the first electrode layer 138 and the second electrode lay 139, there is in fact a potential difference (PD), all polymer dispersed liquid crystal layer 136 are clear state.Background light beam X is through the polymer dispersed liquid crystal layer 136, light guide plate 114 and the display panel 120 that are clear state, and formation background frame light beam X '.At background light beam X through all viewing area 120a of display panel 120 and in forming background frame light beam X ', illuminating bundle L also can be converted to a display frame light beam L ' through all viewing area 120a of display panel 120.Thus, all viewing areas of transparent display 100 just can be simultaneously in order to show display frame and the background frame of display panel 120.
Referring again to Fig. 1, in the present embodiment, the second electrode lay 139 can be divided into multiple the second electrode pattern 139a.The second electrode pattern 139a can align in fact with the first electrode pattern 138a.Can make the polymer dispersed liquid crystal layer 136 of part under the principle of switching between clear state, scattering states at the first electrode pattern 138a and the second electrode pattern 139a that overlap mutually, multiple the second electrode pattern 139a are optionally separated from one another and electrically independent, or are optionally electrically connected to same reference potential.
It should be noted that, the present invention does not limit the second electrode lay must be divided into multiple the second electrode patterns.Fig. 6 is the diagrammatic cross-section of the transparent display of further embodiment of this invention, please refer to Fig. 6, transparent display 100B is similar to transparent display 100, therefore identical or corresponding assembly represents with identical or corresponding label, in transparent display 100B, the second electrode lay 139B also can comprehensive covering second substrate 134 and is contained multiple the first electrode pattern 138a.In addition, in the embodiment of Fig. 6, the second electrode lay 139B compared with the first electrode layer 138 of patterning near light guide plate 114.But the present invention does not limit the second electrode lay must be compared with the first electrode layer of patterning near light guide plate, in the embodiment not illustrating at other, the first electrode layer of patterning also can be compared with the second electrode lay near light guide plate.Transparent display 100B also can reach and the similar effect of transparent display 100, just no longer repeats in this.
Fig. 7 is the diagrammatic cross-section of the transparent display of yet another embodiment of the invention, please refer to Fig. 7, and transparent display 100C is similar to transparent display 100, and therefore identical or corresponding assembly represents with identical or corresponding label.The difference of transparent display 100C and transparent display 100 is: transparent display 100C can further comprise touch-control sensing assembly 140.Explain with regard to this difference place below, the two label existing together mutually please according to Fig. 7, with reference to aforesaid explanation, just no longer repeats in this.Transparent display 100C comprises touch-control sensing assembly 140.Display panel 120 is disposed between touch-control sensing assembly 140 and light guide plate 114.Furthermore,, in the embodiment of Fig. 7, touch-control sensing assembly 140 can overlap with at least one the first electrode pattern 138c that is positioned at nontransparent viewing area R2, and exposes another the first electrode pattern 138b that is positioned at transparent viewing area R1.Transparent display 100C except can reach with transparent display 100 similar effect, transparent display 100C sees through touch-control sensing assembly 140 more can have touch controllable function, and has increased the convenience that uses transparent display 100C.
Fig. 8 is the diagrammatic cross-section of the transparent display of one embodiment of the invention.Please refer to Fig. 8, transparent display 200 is disposed on the bang path of background light beam X.Transparent display 200 comprises backlight module 210, display panel 219 and at least one switching panel 230.The adoptable type of display panel 219, with above-mentioned display panel 120, just no longer repeats in this.Backlight module 210 comprises sending at least one the first light source 212, the first light guide plate 214, multiple the first optical microstructures 216 and multiple the second optical microstructures 218 of the first illuminating bundle L1.The available material of the first light guide plate 214, the adoptable kind of the first light source 212 with above-mentioned light guide plate 114 and light source 112, also no longer repeat in this respectively.
The first light guide plate 214 has the first exiting surface 214a, with respect to the first bottom surface 214b of the first exiting surface 214a, connect the first incidence surface 214c of the first exiting surface 214a and the first bottom surface 214b.The first light source 212 is disposed at by the first incidence surface 214c of the first light guide plate 214.The first illuminating bundle L1 enters the first light guide plate 214 and leaves the first light guide plate 214 by the first exiting surface 214a from the first incidence surface 214c.The first light guide plate 214 is divided at least one the first optical microstructures outside at least one the first optical microstructures setting area 214d and the first optical microstructures setting area 214d without setting area 214e.The first optical microstructures 216 is disposed at upper and the first optical microstructures that exposes the first light guide plate 214 of the first optical microstructures setting area 214d of the first light guide plate 214 without setting area 214e.The first optical microstructures that the second optical microstructures 218 is disposed at the first light guide plate 214 above exposes the first optical microstructures 216 without setting area 214e.
In the present embodiment, the first optical microstructures 216 can be set directly in the first light guide plate 214, and the second optical microstructures 218 can be arranged in the first light guide plate 214 indirectly.In detail, backlight module 210 alternatives of the present embodiment comprise at least one the second light guide plate 220.The first light guide plate 214 is between the second light guide plate 220 and display panel 219.The first optical microstructures that the second light guide plate 220 is fixed on the first light guide plate 214 is upper and expose the first optical microstructures 216 without setting area 214e.The second optical microstructures 218 is disposed on the surface of the second light guide plate 220 away from the first light guide plate 214.The second light guide plate 220 is between the second optical microstructures 218 and the first light guide plate 214.
In the present embodiment, the first optical microstructures that the second light guide plate 214 can be attached to the first light guide plate 214 through transparent optical cement 222 is without on the 214e of setting area.The first optical microstructures that the second optical microstructures 218 can be disposed at the first light guide plate 214 through the second light guide plate 220 is without on the 214e of setting area.In detail, in the present embodiment, the second optical microstructures 218 can be a processing structure of the second light guide plate 220 outside surfaces.The second optical microstructures 218 and the second light guide plate 220 can be formed in one, and the second optical microstructures 218 and the second light guide plate 220 can be fixed on the first optical microstructures of the first light guide plate 214 without on the 214e of setting area simultaneously.It should be noted that, the present invention does not limit the second optical microstructures 218 and the second light guide plate 220 must see through the first optical microstructures that transparent optical cement 222 be fixed on the first light guide plate 214 without on the 214e of setting area.In other embodiments, transparent display 200 also can omit transparent optical cement 222, and the structure that makes the second optical microstructures 218, the second light guide plate 220 and the first light guide plate 214 be formed in one.
Second light guide plate 220 of the present embodiment has towards the one second exiting surface 220a of the first bottom surface 214b, with respect to the second bottom surface 220b of the second exiting surface 220a and the second incidence surface 220c of connection the second exiting surface 220a and the second bottom surface 220b.Backlight module 210 more comprises at least one secondary light source 224.Secondary light source 224 is in order to send the second illuminating bundle L2 (being plotted in Figure 10).Secondary light source 224 is disposed at by the second incidence surface 220c of the second light guide plate 220.The second illuminating bundle L2 enters the second light guide plate 220 and leaves the second light guide plate 220 by the second exiting surface 220a from the second incidence surface 220c.
It should be noted that the light transmission rate of arbitrary the second optical microstructures 218 is greater than the light transmission rate of arbitrary the first optical microstructures 216.In other words, the light reflectivity of arbitrary the first optical microstructures 216 is greater than the light reflectivity of arbitrary the second optical microstructures 218.For example, in the present embodiment, the first optical microstructures 216 is for example multiple sites, and the second optical microstructures 218 is for example the multiple printing opacity protrusions towards the direction d projection away from display panel 219.It should be noted that, the first different optical microstructures 216 of light transmission rate and the object of the second optical microstructures 218 are set in the first light guide plate 214 is: when transparent display 200 is during in part transparent part nontransparent display mode, the first optical microstructures 216 that light reflectivity is higher can reflect the first more illuminating bundle L1, so that the effect of the region display frame corresponding with the first optical microstructures 216 is better in transparent display 200, more background light beam X can pass the second higher optical microstructures 218 of light transmission rate, so that the effect of the region display background picture corresponding with the second optical microstructures 218 is better in transparent display 200.Therefore, the concrete structure of the first optical microstructures 216, the second optical microstructures 218 is not limited to site and printing opacity protrusion, in the category that two groups of one high and one low optical microstructures of all light transmission rates are all protected in first and second optical microstructures institute wish of the present invention.
Display panel 219 is disposed on the first exiting surface 214a of the first light guide plate 214.Switching panel 230 and backlight module 210 are arranged at the same side of display panel 219.Furthermore, switching panel 230 and backlight module 210 can be arranged at a side of the close background light source that sends background light beam X.In the present embodiment, the first light guide plate 214 is configurable in switching between panel 230 and display panel 219.But, the invention is not restricted to this, Fig. 9 is the diagrammatic cross-section of the transparent display of another embodiment of the present invention, please refer to Fig. 9, transparent display 200A is similar to transparent display 200, therefore identical assembly represents with identical label, in transparent display 200A, switches panel 230 also configurable between light guide plate 214 and display panel 219.
Referring again to Fig. 8, switch panel 230 and the second optical microstructures 218 and overlap.Furthermore, in the present embodiment, switch panel 230 and can expose the first optical microstructures 216, but the present invention is not as limit.Switch panel 230 comprise first substrate 232, with respect to the second substrate 234 of first substrate 232, be disposed at polymer dispersed liquid crystal layer 236 between first substrate 232 and second substrate 234, be disposed at the first electrode layer 238 between first substrate 232 and polymer dispersed liquid crystal layer 236 and be disposed at polymer dispersed liquid crystal layer 236 the second electrode lay 239 between second substrate 234.
In the present embodiment, the first electrode layer 238 can be divided into separated from one another and electrical multiple the first electrode pattern 238a independently.The second electrode lay 239 can be divided into multiple the second electrode pattern 239a.The second electrode pattern 239a can align with the first electrode pattern 238a in fact.Multiple the second electrode pattern 239a are optionally separated from one another and electrically independent, or are optionally all electrically connected to same reference potential.But, the invention is not restricted to this, in another embodiment, one of them can be divided into separated from one another and electrical multiple electrode patterns independently the first electrode layer 238 and the second electrode lay 239, and another of the first electrode layer 238 and the second electrode lay 239 can be the complete electrode of the above-mentioned multiple electrode patterns of comprehensive covering.In another embodiment, the first electrode layer 238 and the second electrode lay 239 also can be two complete electrodes of respectively comprehensive covering first substrate 232 and second substrate 234.
As shown in Figure 8, when transparent display 200 is during in the nontransparent display mode of the transparent part of some, between the first electrode layer 238 and the second electrode lay 239, there is in fact a potential difference (PD), so that at least the polymer dispersed liquid crystal layer 236 of part is clear state.The first optical microstructures that background light beam X can pass the part polymer dispersed liquid crystal layer 236, the second optical microstructures 218 and the first light guide plate 214 that are clear state is without setting area 214e.Pass the display panel 219 of part from the first optical microstructures without the background light beam X of setting area 214e, and form a background frame light beam X ', so that the region corresponding with the second optical microstructures 218 can display background picture in transparent display 200.In transparent display 200, in the region display background picture corresponding with the second optical microstructures 218, the first light source 212 can open to send the first illuminating bundle L1.The first illuminating bundle L1 of part is guided and passes through the first optical microstructures setting area 214d of the first light guide plate 214 by the first optical microstructures 216.Pass the display panel 219 of another part from the first illuminating bundle L1 of the first optical microstructures setting area 214d, and form the first display frame light beam L1 ', so that in transparent display 200, the region corresponding with the first optical microstructures 216 can show the part display frame of display panel 219.Thus, transparent display 200 just can be reached the picture of subregion demonstration display panel 219, the effect of subregion display background picture (being that the nontransparent demonstration of part, partially transparent show).
Be worth mentioning and be, when transparent display 200 is during in part transparent part nontransparent display mode, in the present embodiment, secondary light source 224 is optionally closed and is not sent the second illuminating bundle, to allow user be difficult for discovering existing of the second optical microstructures 218 at transparent display 200 and the second optical microstructures 218 corresponding positions, and then the quality of lifting background frame.In addition, because the light reflectivity of the second optical microstructures 218 is low, if when the first illuminating bundle L1 is passed to the second optical microstructures 218, the second optical microstructures 218 is difficult for a large amount of the first illuminating bundle L1 of guiding and reaches the first exiting surface 214a bright dipping, and makes the first illuminating bundle L1 be difficult for affecting the quality of background frame.
The backlight module 210 of the present embodiment can further comprise reflector plate 226.The first light guide plate 214 is disposed between reflector plate 226 and display panel 219.The first optical microstructures that reflector plate 226 covers the first optical microstructures setting area 214d of the first light guide plate 214 and exposes the first light guide plate 214 is without setting area 214e.In other words, reflector plate 226 covers the first optical microstructures 216 and exposes the second optical microstructures 218.Reflector plate 226 is except leading back in the first light guide plate 214 the first light beam L1 that leaves the first light guide plate 214 from the first bottom surface 214b with recycling, reflector plate 226 can also stop the part background light beam X transmitting to the first optical microstructures setting area 214d, so that background light beam X is difficult for affecting the display frame quality of display panel 219.Moreover secondary light source 224 can be hidden in reflector plate 226 times.Thus, if when secondary light source 224 need to be opened, just the second light beam that secondary light source 224 sends does not enter the first optical microstructures setting area 214d, and affect the effect that display panel 219 shows.
The backlight module 210 of the present embodiment can further comprise blast sheet 228.Blast sheet 228 is disposed between the first light guide plate 214 and display panel 219.Blast sheet 228 covers the first optical microstructures 216 and exposes the second optical microstructures 218.In the set of regions that blast sheet 228 can make more to overlap to display panel 219 and the first optical microstructures 216 from the first illuminating bundle L1 of the first optical microstructures 216, so that the first illuminating bundle L1 is difficult for being delivered to the region (being the region overlapping with the second optical microstructures 218 in transparent display 200) in order to display background picture.
The situation of the transparent display that Figure 10 shows Fig. 8 in the time of a full frame display mode.When transparent display 200 is during in a full frame display mode, between the first electrode layer 238 and the second electrode lay 239, there is not in fact a potential difference (PD), so that polymer dispersed liquid crystal layer 236 is scattering states.Be the polymer dispersed liquid crystal layer 236 scattering background light beams of scattering states, with the background light beam X that stops part through the first optical microstructures of the first light guide plate 214 without setting area 214e and display panel 219.In addition, in the present embodiment, reflector plate 226 can cover and in the first light guide plate 214, not be switched the region that the polymer dispersed liquid crystal layer 236 of panel 230 is covered, therefore when transparent display 200 is during in full frame display mode, user is difficult for perceiving background frame from all viewing areas of transparent display 200.
On the other hand, when transparent display 200 is during in full frame display mode, the first light source 212 opens to send the first illuminating bundle L1.The first illuminating bundle L1 of part is guided and passes through the first optical microstructures setting area 214d of the first light guide plate 214 by the first optical microstructures 216.Pass the display panel 219 of part from the first illuminating bundle L1 of the first optical microstructures setting area 214d, to form one first display frame light beam L1 '.The second illuminating bundle L2 is opened and sent to secondary light source 224.The first optical microstructures that the second illuminating bundle L2 was guided and passed the second light guide plate 220, the first light guide plate 214 by the second optical microstructures 218 is without setting area 214e and display panel 219, to be converted to the second display frame light beam L2 '.The first display frame light beam L1 ' forms and shows full frame light beam with the second display frame light beam L2 ', and makes all viewing areas of transparent display 200 show full frame.
The transparent display 200 of the present embodiment more comprises the first light source controller 240 being electrically connected with the first light source 212 and the secondary light source controller 250 being electrically connected with secondary light source 224.When transparent display 200 is during in full frame display mode, the first illuminating bundle L1 that the first light source 212 sends has one first light intensity on the first exiting surface 214a of the first light guide plate 214.The second illuminating bundle L2 that secondary light source 224 sends has the second light intensity on the exiting surface 214a of the first light guide plate 214.If changeover module 230 does not fully stop background light beam X, on the first exiting surface 214a of the first light guide plate 214, can there is the 3rd light intensity without the background light beam X of setting area 214e through the first optical microstructures of the second light guide plate 220 and the first light guide plate 214.The first light source controller 240 and secondary light source controller 250 can make the first light intensity equal in fact the summation of the second light intensity and the 3rd light intensity.Thus, when transparent display 200 is during in full frame display mode, backlight module 210 can have high outgoing light homogeneity, and then the full frame quality that transparent display 200 is shown is good.
In addition, the transparent display 200 of the present embodiment is optionally equipped with and establishes touch-control sensing assembly 260.Touch-control sensing assembly 260 can be arranged on display panel 219 outside surfaces.Display panel 219 is disposed between touch-control sensing assembly 260 and the first light guide plate 214.The first optical microstructures that touch-control sensing assembly 260 covers the first optical microstructures setting area 214d of the first light guide plate 214 and exposes the first light guide plate 214 is without setting area 214e.In other words, touch-control sensing assembly 260 covers the first optical microstructures 216 and exposes the second optical microstructures 218.Touch-control sensing assembly 260 can increase the convenience that uses transparent display 200.
Figure 11, Figure 12 and Figure 13 are the situation that the transparent display of Fig. 8 is applied to ball spring game machine (PACHINKO).Please refer to Fig. 8 and Figure 11, the region R3 of ball spring game machine P is the first optical microstructures setting area 214d corresponding to transparent display 200.The region R4 of ball spring game machine P is that the first optical microstructures corresponding to transparent display 200 is without setting area 214e.Multiple subregion R41 of region R4 are the multiple first electrode pattern 238a that correspond respectively to the switching panel 230 of transparent display 200.In the time that the user of ball spring game machine P wants to play, transparent display 200 can switch to the nontransparent display mode of the transparent part of part.Now, a wherein region R3 corresponding to the first optical microstructures setting area 214d can utilize display panel 219 to show the picture that user likes, for example cartoon or adult's film, and can be in order to show the background frame that is placed in transparent display 200 rears corresponding to the region R4 of the second optical microstructures 218, the digital runner of for example playing.User can touch the touch-control sensing assembly 260 corresponding with another region R3, plays starting.
Please refer to Fig. 8 and Figure 12, in the time that game result produces, if user wins, switch game numeral background frame 666 that panel 230 can utilize electrically multiple the first electrode pattern 238a independently to make to play to be linked to be a pair of linea angulata in digital runner through display panel 219, and stop all the other digital background frames of playing.Thus, user just can know clearly that it wins.Please refer to Figure 10 and Figure 13, in the time not having user to operate ball spring game machine P, transparent display 200 can switch to full frame display mode.Now, ball spring game machine P all region R3, R4 that can display frame all utilize display panel 219 to show the picture that attracts users, for example cartoon, adult film, game rule or its combination.It should be noted that, above-mentioned ball spring game machine is wherein a kind of application mode of transparent display of the present invention.Transparent display of the present invention is not limited to be applied in ball spring game machine.Transparent display of the present invention also can be applicable to other suitable occasion.
In sum, in the transparent display of one embodiment of the invention, display panel rear is provided with backlight module and switches panel.See through and be designed to each other electrically independently multiple electrode patterns by switching at least one electrode layer of panel, switch panel and can there is fringe area and clear area simultaneously.Background light beam can be passed to display panel through switching the clear area of panel and the light guide plate of backlight module, and then make can display background picture with the corresponding position, clear area of switching panel in transparent display.On the other hand, background light beam can be switched the fringe area scattering of panel and be difficult for being passed to display panel, thereby can be difficult for display background picture in order to show the picture of display panel with the corresponding position, fringe area of switching panel in transparent display.In brief, the transparent display of one embodiment of the invention can be realized the effect of the transparent demonstration of part, the nontransparent demonstration of part through the electrode pattern of subregion.
In the transparent display of another embodiment of the present invention, in the zones of different in backlight module light guide plate, be provided with the two groups of one high and one low optical microstructures of light transmission rate and the high a group optical microstructures rear of light transmission rate and dispose a switching panel.When transparent display is during in part transparent part nontransparent display mode, switch panel and at least switch to clear state in the region of part, most background light beam can be through switching panel and the high a group optical microstructures of light transmission rate of clear state, so that region corresponding to optical microstructures high with light transmission rate can the good background frame of display quality in transparent display.The same time, a group optical microstructures that light transmission rate is low can reflect the more illuminating bundle from backlight module, so that the picture of can the display quality good display panel in the region that in transparent display, the optical microstructures low with light transmission rate is corresponding.In brief, the transparent display of another embodiment of the present invention not only can be realized the effect of the transparent demonstration of part, the nontransparent demonstration of part, also can utilize two groups of one high and one low optical microstructures of light transmission rate to make transparent viewing area display background picture, nontransparent viewing area show that the effect of display panel picture is better.
Although the present invention with embodiment openly as above; so it is not in order to limit the present invention; under any, in technical field, have and conventionally know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the aforesaid claim person of defining.
Claims (23)
1. a transparent display, is disposed on the bang path of a background light beam, and this transparent display comprises:
One backlight module, comprising:
At least one light source, in order to send an illuminating bundle; And
One light guide plate, there is an exiting surface, with respect to a bottom surface of this exiting surface and connect an incidence surface of this exiting surface and this bottom surface, this light source is disposed at by this incidence surface of this light guide plate, and this illuminating bundle enters this light guide plate and leaves this light guide plate by this exiting surface from this incidence surface;
One display panel, is disposed on this exiting surface of this light guide plate; And
One switches panel, is arranged at the same side of this display panel with this backlight module, and this switching panel comprises:
One first substrate;
One second substrate, with respect to this first substrate;
One polymer dispersed liquid crystal layer, is disposed between this first substrate and this second substrate;
One first electrode layer, is disposed between this first substrate and this polymer dispersed liquid crystal layer and is divided into separated from one another and electrical multiple the first electrode patterns independently; And
One the second electrode lay, be disposed between this polymer dispersed liquid crystal layer and this second substrate, when this transparent display is during in the nontransparent display mode of the transparent part of some, between at least one this first electrode pattern and this second electrode lay, there is in fact a potential difference (PD), so that be clear state with this polymer dispersed liquid crystal layer of part of this at least one first electrode pattern overlapping, this background light beam of part passes this polymer dispersed liquid crystal layer of this part that is clear state, this light guide plate and this display panel, and formation one background frame light beam, between another this first electrode pattern and this second electrode lay, there is not in fact a potential difference (PD), so that with this another first electrode pattern overlap another part this polymer dispersed liquid crystal layer be scattering states, be scattering states this another part this polymer dispersed liquid crystal layer stop another part this background light beam be passed to this display panel, this illuminating bundle is converted to a display frame light beam through this display panel.
2. transparent display as claimed in claim 1, it is characterized in that, when this transparent display is during in a full frame display mode, between this first electrode layer and this second electrode lay, there is not in fact a potential difference (PD), this polymer dispersed liquid crystal layer is scattering states, this polymer dispersed liquid crystal layer that is scattering states stops that this background light beam of part is passed to this display panel, and this illuminating bundle is converted to a display frame light beam through this display panel.
3. transparent display as claimed in claim 1, it is characterized in that, when this transparent display is during in an all-transparent display mode, between this first electrode layer and this second electrode lay, there is in fact a potential difference (PD), this polymer dispersed liquid crystal layer is clear state, this background light beam is through this polymer dispersed liquid crystal layer, this light guide plate and this display panel that are clear state, and formation one background frame light beam, this illuminating bundle is converted to a display frame light beam through this display panel.
4. transparent display as claimed in claim 1, is characterized in that, this light guide plate is disposed between this switching panel and this display panel.
5. transparent display as claimed in claim 1, is characterized in that, this switching panel is disposed between this light guide plate and this display panel.
6. transparent display as claimed in claim 1, is characterized in that, this second electrode lay is divided into multiple the second electrode patterns, and those second electrode patterns align in fact with those first electrode patterns.
7. transparent display as claimed in claim 1, is characterized in that, this second substrate of the comprehensive covering of this second electrode lay and contain those the first electrode patterns.
8. transparent display as claimed in claim 1, is characterized in that, also comprises:
One touch-control sensing assembly, this display panel configurations is between this touch-control sensing assembly and this light guide plate.
9. a transparent display, is disposed on the bang path of a background light beam, and this transparent display comprises:
One backlight module, comprising:
At least one the first light source, in order to send one first illuminating bundle;
One first light guide plate, there is one first exiting surface, with respect to one first bottom surface of this first exiting surface, connect one first incidence surface of this first exiting surface and this first bottom surface, this first light source is disposed at by this first incidence surface of this first light guide plate, and this first illuminating bundle enters this first light guide plate and leaves this first light guide plate by this first exiting surface from this first incidence surface;
Multiple the first optical microstructures, this first light guide plate is divided at least one the first optical microstructures setting area and is positioned at least one the first optical microstructures outside this first optical microstructures setting area without setting area, and those first optical microstructures are disposed on this first optical microstructures setting area and expose this first optical microstructures without setting area; And
Multiple the second optical microstructures, are disposed at this first optical microstructures without on setting area and expose those the first optical microstructures, and wherein the light transmission rate of arbitrary this second optical microstructures is greater than the light transmission rate of arbitrary this first optical microstructures;
One display panel, is disposed on this first exiting surface of this first light guide plate; And
At least one switching panel, is arranged at the same side of this display panel with this backlight module and overlaps with those second optical microstructures, and this switching panel comprises:
One first substrate;
One second substrate, with respect to this first substrate;
One polymer dispersed liquid crystal layer, is disposed between this first substrate and this second substrate;
One first electrode layer, is disposed between this first substrate and this high polymer dispersed liquid crystal; And
One the second electrode lay, is disposed between this polymer dispersed liquid crystal layer and this second substrate.
10. transparent display as claimed in claim 9, is characterized in that, this first light guide plate is disposed between this switching panel and this display panel.
11. transparent displays as claimed in claim 9, is characterized in that, this switching panel is disposed between this first light guide plate and this display panel.
12. transparent displays as claimed in claim 9, is characterized in that, those first optical microstructures are multiple sites, and those second optical microstructures are the multiple printing opacity protrusions towards the direction projection away from this display panel.
13. transparent displays as claimed in claim 9, is characterized in that, this first electrode layer is divided into separated from one another and electrical multiple the first electrode patterns independently.
14. transparent displays as claimed in claim 9, is characterized in that, also comprise:
One touch-control sensing assembly, this display panel configurations is between this touch-control sensing assembly and this first light guide plate, and this first optical microstructures that this touch-control sensing assembly covers this first optical microstructures setting area of this first light guide plate and exposes this first light guide plate is without setting area.
15. transparent displays as claimed in claim 9, is characterized in that, this backlight module also comprises:
At least one the second light guide plate, is fixed on this first optical microstructures of this first light guide plate without on setting area, and this first light guide plate is between this second light guide plate and this display panel.
16. transparent displays as claimed in claim 15, is characterized in that, this second light guide plate is between those second optical microstructures and this first light guide plate.
17. transparent displays as claimed in claim 15, also comprise:
One transparent optical cement, this first optical microstructures that this second light guide plate is attached to this first light guide plate through this transparent optical cement is without on setting area.
18. transparent displays as claimed in claim 15, it is characterized in that, this second light guide plate, have towards one second exiting surface of this first bottom surface, with respect to one second bottom surface of this second exiting surface and connect one second incidence surface of this second exiting surface and this second bottom surface, this backlight module also comprises:
At least one secondary light source, in order to send one second illuminating bundle, this secondary light source is disposed at by this second incidence surface of this second light guide plate, and this second illuminating bundle enters this second light guide plate and leaves this second light guide plate by this second exiting surface from this second incidence surface.
19. transparent displays as claimed in claim 18, it is characterized in that, when this transparent display is during in the nontransparent display mode of the transparent part of some, between this first electrode layer and this second electrode lay, there is in fact a potential difference (PD), at least this polymer dispersed liquid crystal layer of part is clear state, this background light beam is through this polymer dispersed liquid crystal layer of part that is clear state, this first optical microstructures of those second optical microstructures and this first light guide plate is without setting area, pass this display panel of part without this background light beam of setting area from this first optical microstructures, to form a background frame light beam, this first light source opens to send this first illuminating bundle, this first illuminating bundle of part is guided and passes through this first optical microstructures setting area of this first light guide plate by those first optical microstructures, pass this display panel of another part from this first illuminating bundle of this first optical microstructures setting area, to form one first display frame light beam.
20. transparent displays as claimed in claim 19, is characterized in that, when this transparent display is during in this part transparent part nontransparent display mode, this secondary light source is closed and do not sent this second illuminating bundle.
21. transparent displays as claimed in claim 18, it is characterized in that, when this transparent display is during in a full frame display mode, between this first electrode layer and this second electrode lay, there is not in fact a potential difference (PD), this polymer dispersed liquid crystal layer is scattering states, be this background light beam of this polymer dispersed liquid crystal layer scattering of scattering states, with this background light beam of stopping part through this first optical microstructures of this first light guide plate without setting area and this display panel, this first light source opens to send this first illuminating bundle, this first illuminating bundle of part is guided and passes through this first optical microstructures setting area of this first light guide plate by those first optical microstructures, pass this display panel of part from this first illuminating bundle of this first optical microstructures setting area, to form one first display frame light beam, this the second illuminating bundle is opened and sent to this secondary light source, this second illuminating bundle is guided and passes this second light guide plate by those second optical microstructures, this first optical microstructures of this first light guide plate is without setting area and this display panel, to be converted to one second display frame light beam.
22. transparent displays as claimed in claim 21, is characterized in that, also comprise: one first light source controller, is electrically connected with this first light source; And
One secondary light source controller, be electrically connected with this secondary light source, when this transparent display is during in this full frame display mode, this first illuminating bundle that this first light source sends has one first light intensity on this first exiting surface of this first light guide plate, this second illuminating bundle that this secondary light source sends has one second light intensity on this first exiting surface of this first light guide plate, this first optical microstructures through this second light guide plate and this first light guide plate has one the 3rd light intensity without this background light beam of setting area on this first exiting surface of this first light guide plate, this first light source controller and this secondary light source controller make this first light intensity equal in fact the summation of this second light intensity and the 3rd light intensity.
23. transparent displays as claimed in claim 18, is characterized in that, this backlight module also comprises:
One reflector plate, this first light guide plate is disposed between this reflector plate and this display panel, this first optical microstructures that this reflector plate covers this first optical microstructures setting area of this first light guide plate and exposes this first light guide plate is without setting area, this reflector plate stops this background light beam of part transmitting to this first optical microstructures setting area, and this secondary light source is hidden in this reflector plate below.
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