TW202212927A - Displayed light-adjustment device - Google Patents

Abstract

A displayed light-adjustment device includes two light-transmitting layers which are arranged oppositely, a display module and an adjustable light- shading layer. The display module is stacked between the light-transmitting layers. The adjustable shading layer is laminated between one of the light-transmitting layers and the display module, the light transmittance of the adjustable shading layer is adjustable. When the adjustable shading layer is off, the transmittance of the adjustable shading layer is great than 75%, and when the adjustable shading layer is on, the ultraviolet resistant value of the adjustable shading layer is great than 99%.

Description

Display light adjustment device

The present invention relates to a displayable light adjustment device, in particular, to a displayable light adjustment device which can shield sunlight or insulate heat and can be used as a display.

In view of the fact that the sun shines directly through the window to the occupant's face and eyes, especially in summer, the strong sunlight makes the occupant feel dazzling and uncomfortable. A common shading measure is, for example, pasting a traditional heat-insulating film on the car window to block sunlight or heat insulation.

However, since the brightness (ie light transmittance) of the conventional thermal insulation film is fixed, the brightness of the window cannot be adjusted according to the needs of different environments or timings. In this way, if the heat insulation film is too dark, it will cause visual inconvenience to the occupant, on the contrary, if the heat insulation film is not dark enough, it cannot provide the occupant with the purpose of shading or heat insulation.

In addition, the existing car window only has the functions of windproof, waterproof and sandproof, but does not have the function of display, so the purpose of using the car window as a display cannot be achieved for the occupants.

To this end, the present invention provides a displayable light adjustment device to solve the above-mentioned difficulties in the prior art.

An embodiment of the present invention provides a displayable light adjustment device. The displayable light adjustment device includes a first transparent layer, a second transparent layer, a display module and an adjustable light shielding layer. The second light-transmitting layer is disposed relative to the first light-transmitting layer. The display module is stacked between the first transparent layer and the second transparent layer. The adjustable light-shielding layer is stacked between the first light-transmitting layer and the display module, and the light transmittance of the adjustable light-shielding layer can be adjusted. Wherein, when the adjustable light shielding layer is in the closed state, the light transmittance of the adjustable light shielding layer is greater than 75%, and when the adjustable light shielding layer is in the open state, the anti-ultraviolet value of the adjustable light shielding layer is greater than 99%.

According to one or more embodiments of the present invention, the above-mentioned displayable light adjustment device further includes a light sensing unit and a control unit. The light sensing unit is electrically connected to the control unit for sensing the light intensity of the incident light entering the first light-transmitting layer. The control unit applies a specific voltage to the adjustable light shielding layer according to the sensing result of the light sensing unit, so as to adjust the light transmittance of the adjustable light shielding layer. The control unit is electrically connected to the adjustable light shielding layer for controlling a specific voltage to the adjustable light shielding layer to adjust the light intensity of incident light entering the display module.

According to one or more embodiments of the present invention, in the above-mentioned displayable light adjustment device, the display module includes a display panel and a light source module. The light source module is stacked between the first transparent layer and the second transparent layer to provide a display light source to the display panel. The control unit electrically controls the adjustable shading layer to act synchronously with the light source module.

According to one or more embodiments of the present invention, in the above-mentioned displayable light adjustment device, the display module further includes a touch panel. The touch panel is stacked between the second transparent layer and the display panel.

According to one or more embodiments of the present invention, in the above-mentioned displayable light adjusting device, the response time of the adjustable light shielding layer is less than 3 minutes.

According to one or more embodiments of the present invention, in the above-mentioned display light adjustment device, the adjustable light shielding layer is one of a polymer liquid crystal unit, a suspended particle unit and an electrochromic unit.

According to one or more embodiments of the present invention, in the above-mentioned display light adjustment device, the polymer liquid crystal cell includes a polymer dispersed liquid crystal cell, or the polymer liquid crystal cell includes a polymer network liquid crystal cell.

According to one or more embodiments of the present invention, in the above-mentioned display light adjustment device, the electrochromic unit includes a first transparent conductive layer, an electrochromic layer, an electrolyte layer, and an ion storage layer stacked in sequence and a second transparent conductive layer. The first transparent conductive layer is sandwiched between the electrochromic layer and the first transparent layer, and the second transparent conductive layer is sandwiched between the ion storage layer and the second transparent layer. When a specific voltage is applied and a specific electric field is generated between the first transparent conductive layer and the second transparent conductive layer, the electrochromic layer changes color.

According to one or more embodiments of the present invention, the above-mentioned displayable light adjustment device further includes a window frame. The window frame is surrounded and fixed by a superimposed structure formed by the first light-transmitting layer, the adjustable light-shielding layer, the display module and the second light-transmitting layer.

According to one or more embodiments of the present invention, in the above-mentioned displayable light adjusting device, the first light-transmitting layer and the second light-transmitting layer are respectively flexible sheets.

In this way, through the structures of the above embodiments, the present invention can not only adaptively adjust the intensity of external incident light according to the requirements of different environments or occasions, so as to select the purpose of shading or clarity.

In addition, the present invention can not only adjust the intensity of external incident light adaptively, but also can be used as a display or a touch display according to the requirements of different environments or occasions.

The above descriptions are only used to describe the problems to be solved by the present invention, the technical means for solving the problems, and their effects, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

Plural embodiments of the present invention will be disclosed in the drawings below, and for the sake of clarity, many practical details will be described together in the following description. However, those skilled in the art should appreciate that these practical details are not necessary in some embodiments of the present invention and should not be used to limit the present invention. In addition, for the purpose of simplifying the drawings, some well-known structures and elements will be shown in a simple and schematic manner in the drawings. In addition, for the convenience of the reader, the size of each element in the drawings is not drawn according to the actual scale.

FIG. 1 is a side view of a displayable light adjusting device 10 according to an embodiment of the present invention. FIG. 2 is a block diagram of the displayable light adjusting device 10 of FIG. 1 . As shown in FIG. 1 and FIG. 2 , the displayable light adjusting device 10 includes a first transparent layer 100 , a second transparent layer 400 , a display module 300 , an adjustable light shielding layer 200 and a control unit 600. The first light-transmitting layer 100 , the adjustable light-shielding layer 200 , the display module 300 and the second light-transmitting layer 400 are stacked to form a stacked structure 500 . The second light-transmitting layer 400 is disposed opposite to the first light-transmitting layer 100 . The display module 300 is stacked between the first transparent layer 100 and the second transparent layer 400 . The adjustable light-shielding layer 200 is, for example, an electrochromic layer 220 , and is stacked between the first light-transmitting layer 100 and the display module 300 . The control unit 600 is electrically connected to the adjustable light shielding layer 200, and by controlling a specific voltage to be applied to the adjustable light shielding layer 200, to adjust the light transmittance (such as color brightness and darkness) of the adjustable light shielding layer 200, thereby controlling the incident light from the first The light intensity of a light-transmitting layer 100 entering the display module 300 .

More specifically, the displayable light adjusting device 10 further includes a light sensing unit 700 . The light sensing unit 700 is electrically connected to the control unit 600 , and the light sensing unit 700 can sense the light intensity of the incident light entering the first light-transmitting layer 100 . In this way, the control unit 600 controls a specific voltage to be applied to the adjustable light shielding layer 200 according to the sensing result of the light sensing unit 700 to adjust the light transmittance of the adjustable light shielding layer 200 . In the present invention, as long as the light sensing unit 700 can sense the light intensity of the incident light, the arrangement position of the light sensing unit 700 is not limited. However, the present invention is not limited thereto, and in other embodiments, the present invention may not require a light sensing unit.

In this way, the control unit 600 can adaptively adjust the light transmittance (eg, color brightness and darkness) of the adjustable light shielding layer 200 according to the requirements of different environments. For example, when the external light is strong, according to the sensing result of the light sensing unit 700 , the control unit 600 reduces the light transmittance of the adjustable light shielding layer 200 so that the second light transmitting layer located in the displayable light adjusting device 10 The user on the 400 side will not feel the strong light from the outside world. On the contrary, when the outside light is not strong, or when night comes, the control unit 600 increases the light transmittance of the adjustable light shielding layer 200 or stops the operation, so that the use on the side of the second light transmitting layer 400 of the displayable light adjusting device 10 The user can see through the displayable light adjusting device 10 .

Furthermore, the display module 300 includes a display panel 310 and a light source module 320 . In this embodiment, the light source module 320 is superimposed between the adjustable light shielding layer 200 and the display panel 310 to supplement natural light sources to provide display light sources to the display panel 310 so as not to affect the display effect due to insufficient natural light. The control unit 600 electrically controls the adjustable light shielding layer 200 and the display module 300 to operate synchronously. For example, the control unit 600 electrically controls the adjustable light shielding layer 200 and the light source module 320 to act synchronously. However, the present invention is not limited to this, as long as the light source module 320 can provide a display light source to the display panel 310 , in other embodiments, the light source module 320 may also be superimposed on the first light-transmitting layer 100 and the second light-transmitting layer 400 . anywhere in between. However, the present invention is not limited thereto, and in other embodiments, the present invention may not require the light source module 320 . In addition, in another embodiment, the light source module 320 may be located above, below, on the left side, on the right side or on either side of the first transparent layer 100 and the second transparent layer 400 .

In this way, when the external light is strong, according to the sensing result of the light sensing unit 700, the control unit 600 reduces the light transmittance of the adjustable light shielding layer 200, and activates the light source module 320 to provide light with a suitable intensity. Under the strong external light, the user can still view the contents of the display panel 310; or, when the external light is still sufficient, the control unit 600 increases the light penetration of the adjustable light shielding layer 200 according to the sensing result of the light sensing unit 700. The transmittance or stop action, and the light source module 320 is turned off to stop emitting light, so the user can view the content of the display panel 310 only through the ambient light. On the contrary, when the outside light is insufficient or night comes, the control unit 600 increases the light transmittance of the adjustable light shielding layer 200 or stops the action, and activates the light source module 320 to provide light with a suitable intensity. The user can still view the contents of the display panel 310 .

For example, the display panel 310 includes an array substrate, an opposite substrate and a liquid crystal layer (not shown in the figure). The liquid crystal layer is interposed between the array substrate and the opposite substrate. Therefore, by applying a voltage and generating an electric field on the liquid crystal layer, the orientation of the liquid crystal molecules in the liquid crystal layer and the polarization of the incident light are determined, thereby displaying a pattern. In addition, the light source module 320 is, for example, a front light module. For example, the light source module 320 includes, for example, a light emitting unit and a light guide module. The light-emitting units are, for example, light-emitting diodes, micro-light-emitting diodes, organic light-emitting diodes, and the like. The light guide module is, for example, a light guide plate or a light homogenizer.

Furthermore, the display module 300 further includes a touch panel 330 . The touch panel 330 is electrically connected to the control unit 600 or other control chips. The touch panel 330 is superimposed between the second light-transmitting layer 400 and the display panel 310 to provide the user with an intuitive man-machine interface, so as to satisfy the user demand.

In this embodiment, when the adjustable light shielding layer 200 is in an off state, the light transmittance of the adjustable light shielding layer 200 is greater than 75%, for example, between 75% and 99%. The response time of the adjustable light shielding layer 200 is less than 3 minutes, for example, between 1 minute and 3 minutes. When the adjustable light shielding layer 200 is turned on, the anti-ultraviolet value of the adjustable light shielding layer 200 is greater than 99%, for example, between 99% and 99.99%. For example, the adjustable light shielding layer 200 is a polymer liquid crystal cell. Further, the polymer liquid crystal cell includes a polymer dispersed liquid crystal cell (Polymer Dispersed Liquid Crystal, PDLC or a polymer network liquid crystal cell (PNLC). However, the present invention is not limited to this. When the polymer When the dispersed liquid crystal cell (PDLC) is supplied with power, the polymer dispersed liquid crystal cell (PDLC) becomes transparent; on the contrary, when the power supply to the polymer dispersed liquid crystal cell (PDLC) is stopped, the polymer dispersed liquid crystal cell (PDLC) returns to its original state to return to the original state. Off-white state. On the contrary, when the polymer network liquid crystal cell (PNLC) is powered, the polymer network liquid crystal cell (PNLC) becomes off-white state; on the contrary, when the power supply to the polymer network liquid crystal cell (PNLC) is stopped, The polymer network liquid crystal cell (PNLC) is restored to its original state to return to a transparent state. In this way, by utilizing the characteristics of the polymer dispersed liquid crystal cell (PDLC) or the polymer network liquid crystal cell (PNLC), the display light adjusting device 10 can realize a different Polarizers are required, and only natural light sources are needed to have a display effect. When not normally displayed, it also has a visual penetration effect, which does not affect the viewing of the outside scenery.

Various operation modes of the first light-transmitting layer 100 , the adjustable light-shielding layer 200 , the light source module 320 , the display panel 310 , the touch panel 320 and the second light-transmitting layer 200 are described in the following table. structure operating mode Shade only when the sun is strong Situational operation when the sun is strong Simply enjoy the scenery outside the window when the weather is fine Situational operation when the weather is fine night situation operation The first light-transmitting layer 100 Adjustable shading layer 200 turn on turn on closure closure closure Light source module 320 closure turn on closure closure turn on Display panel 310 closure turn on closure turn on turn on touch panel 330 closure turn on closure turn on turn on The second light-transmitting layer 200

However, the present invention is not limited thereto, and in other embodiments, the adjustable light shielding layer 200 may also be a suspended particle unit (Suspended Particle Device; SPD) or an electrochromic unit (Electrochromic; EC).

FIG. 3 is a schematic diagram of an electrochromic unit of the displayable light adjusting device 10 according to an embodiment of the present invention. As shown in FIG. 3 , for example, when the adjustable light shielding layer 201 is an electrochromic unit (Electrochromic, EC), further, the electrochromic unit is a sandwich-type layered structure, including sequential stacking A first transparent conductive layer 210 , an electrochromic layer 220 , an electrolyte layer 230 , an ion storage layer 240 and a second transparent conductive layer 250 . The first transparent conductive layer 210 is sandwiched between the electrochromic layer 220 and the first transparent layer 100 , and the second transparent conductive layer 250 is sandwiched between the ion storage layer 240 and the second transparent layer 400 . In this way, when a specific voltage is applied to the first transparent conductive layer 210 and the second transparent conductive layer 250, and a specific electric field is generated between the first transparent conductive layer 210 and the second transparent conductive layer 250, redox occurs under the action of the electric field. The reaction causes the electrochromic layer 220 to correspondingly generate a change in color, thereby affecting the light transmittance (eg, color brightness and darkness) of the adjustable light shielding layer 201 . It should be understood that the materials of the electrochromic unit include inorganic materials and organic materials. Inorganic materials are, for example, transition metal oxides and Prussian blue. Organic materials are, for example, organic compounds and polymers.

FIG. 4 is a schematic diagram of the displayable light adjusting device 11 applied to the window frame 810 according to an embodiment of the present invention. As shown in FIG. 4 , for example, when the displayable light adjustment device 11 is applied to a vehicle window 800 , further, the displayable light adjustment device 11 includes a window frame 810 . The window frame 810 surrounds and fixes the above-mentioned laminated structure 500, the above-mentioned laminated structure 500 is located in the opening 820 of the window frame 810, the second light-transmitting layer 400 faces the interior space of the vehicle, and the above-mentioned first light-transmitting layer 100 and the second light-transmitting layer are Layer 400 may be the same as the clear glass of conventional vehicle windows. However, the present invention is not limited thereto. In other embodiments, the displayable light adjusting device may also be a building window such as a home or office, or a building partition such as a home or office.

It should be understood that in all the above-mentioned embodiments, any two of the first light-transmitting layer 100 , the adjustable light-shielding layers 200 and 201 , the display module 300 and the second light-transmitting layer 400 of the above-mentioned laminated structure 500 are adjacent to each other. The water glues (not shown in the figure) are fixed and attached to each other, and the above-mentioned laminated structure 500 is fixed together through an encapsulation structure (not shown in the figure), so that the encapsulated structure surrounds all sides of the above-mentioned laminated structure 500 . The first transparent layer 100 and the second transparent layer 400 are respectively transparent. However, the present invention is not limited to this, and in other embodiments, the first light-transmitting layer 100 and the second light-transmitting layer 400 may not be transparent, as long as they have light transmittance.

In addition, in this embodiment, the first light-transmitting layer 100 and the second light-transmitting layer 400 are rigid, respectively, and the display module 300 and the adjustable light-shielding layers 200 and 201 are fixedly sandwiched therein for supporting and carrying The display module 300 and the adjustable light shielding layers 200 and 201 . For example, the first transparent layer 100 and the second transparent layer 400 are respectively glass, acrylic, quartz, sapphire, and the like.

However, the present invention is not limited to this. In other embodiments, the first light-transmitting layer 100 and the second light-transmitting layer 400 may also be flexible sheets, respectively, so that the first light-transmitting layer 100 and the adjustable light-shielding layer 200 , 201. The superimposed structure 500 formed by superimposing the display module 300 and the second light-transmitting layer 400 can be formed into a rollable article as a whole. In addition, the above-mentioned control unit 600 is not limited to any form of hardware (eg, control circuits such as CPU or GPU), software, or firmware.

Finally, the above disclosed embodiments are not intended to limit the present invention. Anyone who is familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. invention. Therefore, the protection scope of the present invention should be determined by the scope of the appended patent application.

10, 11: Can display light adjustment device 100: The first light-transmitting layer 200, 201: Adjustable shading layer 210: the first transparent conductive layer 220: Electrochromic layer 230: Electrolyte Layer 240: Ion Storage Layer 250: the second transparent conductive layer 300: Display module 310: Display panel 320: Light source module 330: Touch Panel 400: The second transparent layer 500: Laminate structure 600: Control Unit 700: Light Sensing Unit 800: car window 810: Window frame 820: Opening

In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the accompanying drawings are described as follows: FIG. 1 is a side view of a displayable light adjusting device according to an embodiment of the present invention; FIG. 2 is a block diagram of the displayable light adjusting device of the present embodiment; FIG. 3 is a schematic diagram of an electrochromic unit capable of displaying a light adjusting device according to an embodiment of the present invention; and FIG. 4 is a schematic diagram of a displayable light adjusting device applied to a window frame according to an embodiment of the present invention.

10: Can display light adjustment device

100: The first light-transmitting layer

200: Adjustable shading layer

300: Display module

310: Display panel

320: Light source module

330: Touch Panel

400: The second transparent layer

500: Laminate structure

Claims (10)

A displayable light adjustment device, comprising: a first light-transmitting layer; a second light-transmitting layer disposed opposite to the first light-transmitting layer; a display module stacked between the first transparent layer and the second transparent layer; an adjustable light-shielding layer stacked between the first light-transmitting layer and the display module, and the light transmittance of the adjustable light-shielding layer can be adjusted; Wherein, when the adjustable light-shielding layer is in the closed state, the light transmittance of the adjustable light-shielding layer is greater than 75%, and when the adjustable light-shielding layer is in the open state, the anti-ultraviolet value of the adjustable light-shielding layer is greater than 99% . The displayable light adjustment device according to claim 1, further comprising: a light sensing unit electrically connected to the control unit for sensing the light intensity of the incident light entering the first light-transmitting layer, wherein the control unit applies a specific voltage to the adjustable light shielding layer according to the sensing result of the light sensing unit to adjust the light transmittance of the adjustable light shielding layer; and A control unit is electrically connected to the adjustable light shielding layer for controlling a specific voltage to the adjustable light shielding layer to adjust the light intensity of incident light entering the display module. The displayable light adjustment device according to claim 2, wherein the display module comprises: a display panel; and a light source module stacked between the first transparent layer and the second transparent layer for providing a display light source to the display panel, The control unit electrically controls the adjustable light shielding layer to act synchronously with the light source module. The displayable light adjustment device according to claim 3, wherein the display module further comprises: A touch panel is stacked between the second transparent layer and the display panel. The displayable light adjusting device according to claim 1, wherein the response time of the adjustable light shielding layer is less than 3 minutes. The displayable light adjustment device as claimed in claim 1, wherein the adjustable light shielding layer is one of a polymer liquid crystal unit, a suspended particle unit and an electrochromic unit. The displayable light adjustment device of claim 6, wherein the polymer liquid crystal cell comprises a polymer dispersed liquid crystal cell; or the polymer liquid crystal cell comprises a polymer network liquid crystal cell. The displayable light adjustment device as claimed in claim 6, wherein the electrochromic unit comprises a first transparent conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer and a second transparent layer stacked in sequence A conductive layer, wherein the first transparent conductive layer is directly sandwiched between the electrochromic layer and the first transparent layer, and the second transparent conductive layer is directly sandwiched between the ion storage layer and the second transparent layer between, Wherein, when a specific voltage is applied and a specific electric field is generated between the first transparent conductive layer and the second transparent conductive layer, the electrochromic layer is discolored. The displayable light adjustment device according to claim 1, further comprising: A window frame surrounds and is fixed to a superimposed structure formed by the first light-transmitting layer, the adjustable light-shielding layer, the display module and the second light-transmitting layer. The displayable light adjustment device according to claim 1, wherein the first transparent layer and the second transparent layer are respectively a flexible sheet.

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