TWI746168B - 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

Displayable light adjustment device

The present invention relates to a displayable light adjustment device, in particular to a displayable light adjustment device that can shield sunlight or heat insulation and can be a display.

In view of the fact that sunlight will pass through the car window and hit the face and eyes of the occupant, especially in summer, the strong sunlight makes the occupant feel dazzling and uncomfortable. Common sun-shielding measures are, for example, sticking traditional heat-insulating films on car windows to block sunlight or heat insulation.

However, since the brightness (that is, the light transmittance) of the conventional thermal insulation film is fixed, it is impossible to adjust the brightness of the car window 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 occupants. On the contrary, if the heat insulation film is not dark enough, it will not be able to provide shading or heat insulation for the occupants.

In addition, the existing vehicle windows only have the functions of windproof, waterproof, and sand-proof, but do not have the function of displaying. Therefore, the purpose of using the vehicle window as a display for the occupant cannot be achieved.

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

An embodiment of the present invention is to provide a displayable light adjustment device. The displayable light adjusting device includes a first light-transmitting layer, a second light-transmitting layer, a display module, and an adjustable light-shielding layer. The second light-transmitting layer is disposed opposite to the first light-transmitting layer. The display module is laminated between the first light-transmitting layer and the second light-transmitting layer. The adjustable light-shielding layer is laminated between the first light-transmitting layer and the display module, and the light transmittance of the adjustable light-shielding layer is adjustable. 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 UV resistance 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 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 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 adjusting device, the display module includes a display panel and a light source module. The light source module is stacked between the first light-transmitting layer and the second light-transmitting layer to provide a display light source to the display panel. The control unit electrically controls the adjustable light-shielding layer to act in synchronization with the light source module.

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

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

According to one or more embodiments of the present invention, in the above-mentioned displayable light adjusting 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 displayable light adjusting 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 adjusting device further includes a window frame. The window frame surrounds and fixes a laminated 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 adjust the intensity of the incident light from the outside adaptively in response to the needs of different environments or timings, so as to choose shading or clarity.

In addition, in addition to adaptively adjusting the intensity of incident light from the outside, the present invention can also be used as a display or a touch display according to the needs of different environments or occasions.

The above description is only used to illustrate the problem to be solved by the present invention, the technical means to solve the problem, and the effects produced by it, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

The plural embodiments of the present invention will be disclosed in the following drawings. For clear description, many practical details will be described in the following description. However, those skilled in the art should understand that in some embodiments of the present invention, these practical details are not necessary, and therefore should not be used to limit the present invention. In addition, in order to simplify the drawings, some conventionally used structures and elements are shown in the drawings in a simple and schematic manner. In addition, for the convenience of readers, the size of each element in the drawings is not drawn according to 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 light adjusting device 10 shown in FIG. 1. FIG. As shown in Figures 1 and 2, the displayable light adjustment device 10 includes a first light-transmitting layer 100, a second light-transmitting 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 laminated structure 500. The second light-transmitting layer 400 is disposed opposite to the first light-transmitting layer 100. The display module 300 is laminated between the first light-transmitting layer 100 and the second light-transmitting layer 400. The adjustable light-shielding layer 200 is, for example, an electrochromic layer 220 and is laminated 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, the light transmittance (such as color brightness) of the adjustable light-shielding layer 200 can be adjusted to control 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 the 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 light sensing unit 700 is not limited to its location. However, the present invention is not limited to this. 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 (for example, 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 it is located at the second light transmitting layer of the displayable light adjusting device 10 The user on the 400 side will not feel the strong light from the outside world. Conversely, when the external 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 operating, so that it can be used on the side of the second light transmitting layer 400 of the displayable light adjusting device 10 The person can see through the displayable light adjustment 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 overlapped 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 that the lack of natural light will not affect the display effect. The control unit 600 electrically controls the adjustable light shielding layer 200 and the display module 300 synchronously. For example, the control unit 600 electrically controls the adjustable light shielding layer 200 and the light source module 320 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 overlapped between the first light-transmitting layer 100 and the second light-transmitting layer 400. Anywhere between. However, the present invention is not limited to this. 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 light-transmitting layer 100 and the second light-transmitting 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 of appropriate intensity. Under strong external light, the user can still watch the content of the display panel 310; or, when the external light is still sufficient, the control unit 600 improves the light penetration of the adjustable light shielding layer 200 according to the sensing result of the light sensing unit 700 The transmittance is stopped or the light source module 320 is turned off to stop emitting light. Therefore, the user can watch the content of the display panel 310 only through the ambient light. Conversely, when the external light is insufficient or night comes, the control unit 600 increases the light transmittance of the adjustable light-shielding layer 200 or stops its operation, and activates the light source module 320 to provide light of appropriate intensity. Therefore, under insufficient ambient light, The user can still view the content 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 of the liquid crystal layer and the polarization of the incident light are determined to display the pattern. In addition, the light source module 320 is, for example, a front light module. For example, the light source module 320 includes a light emitting unit and a light guide module. The light-emitting unit is, for example, a light-emitting diode, a miniature light-emitting diode, an organic light-emitting diode, and the like. The light guide module is, for example, a light guide plate or a uniform light plate.

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 laminated between the second light-transmitting layer 400 and the display panel 310 to provide a human-machine interface for the user's intuitive operation to satisfy the user The demand.

In this embodiment, when the adjustable light shielding layer 200 is in the closed state, the light transmittance of the adjustable light shielding layer 200 is greater than 75%, for example, between 75% and 99%. The reaction 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 UV resistance 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. Furthermore, the polymer liquid crystal cell includes a polymer dispersed liquid crystal cell (Polymer Dispersed Liquid Crystal, PDLC, or a polymer network liquid crystal cell (Polymer Network Liquid Crystal, PNLC)). However, the present invention is not limited to this. When the polymer When the PDLC is powered, the polymer dispersed liquid crystal cell (PDLC) becomes transparent; conversely, when the power to the polymer dispersed liquid crystal cell (PDLC) is stopped, the polymer dispersed liquid crystal cell (PDLC) returns to its original state. Gray-white state. Conversely, when the polymer network liquid crystal cell (PNLC) is powered, the polymer network liquid crystal cell (PNLC) becomes a gray-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, using the characteristics of the polymer dispersed liquid crystal cell (PDLC) or the polymer network liquid crystal cell (PNLC), it can be shown that the light adjusting device 10 can be realized. Polarizers are required, and only natural light sources are needed to have a display effect. When it is not normally displayed, it also has a visual penetrating effect, and does not affect the viewing of the outside scenery.

The following table describes 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. structure Operation mode Simply shading when the sun is strong Situational operation when the sun is strong Simply enjoy the scenery outside the window when the weather is clear Situational operation when the weather is clear Night scene 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 Second light-transmitting layer 200

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

FIG. 3 is a schematic diagram of an electrochromic unit capable of displaying the light adjusting device 10 according to an embodiment of the present invention. As shown in Figure 3, for example, when the adjustable light-shielding layer 201 is an electrochromic unit (Electrochromic, EC), furthermore, the electrochromic unit is a sandwich-like 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 produce a change in color, which in turn affects the light transmittance of the adjustable light-shielding layer 201 (for example, the lightness and darkness of the color). 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 a displayable light adjusting device 11 applied to a window frame 810 according to an embodiment of the present invention. As shown in FIG. 4, for example, when the displayable light adjusting device 11 is applied to a car window 800, furthermore, the displayable light adjusting 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 first light-transmitting layer 100 and the second light-transmitting layer The layer 400 can follow the transparent glass of the conventional car window. However, the present invention is not limited to this. In other embodiments, besides car use, the displayable light adjusting device may also be a building window such as a home or office, or a partition of a building such as a home or office.

It should be understood that in all the above embodiments, any two of the first light-transmitting layer 100, the adjustable light-shielding layers 200, 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 glue (not shown in the figure) is fixed and attached to each other, and the above-mentioned laminated structure 500 is fixed together through the sealing structure (not shown in the figure), so that the sealing structure surrounds all sides of the above-mentioned laminated structure 500 . The first light-transmitting layer 100 and the second light-transmitting layer 400 respectively have transparent characteristics. 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 not be transparent, as long as they are light-transmissive.

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

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, so that the first light-transmitting layer 100 and the adjustable light-shielding layer 200 201, the laminated structure 500 formed by the display module 300 and the second transparent layer 400 can be integrated into a rollable article. In addition, the above-mentioned control unit 600 is not limited to any form of hardware (for example, CPU or GPU control circuits), software or firmware.

Finally, the various embodiments disclosed above are not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention, and they can all be protected in this invention. Inventing. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

10.11: Displayable 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: second transparent conductive layer

300: display module

310: display panel

320: light source module

330: Touch panel

400: second light-transmitting layer

500: laminated structure

600: control unit

700: light sensing unit

800: car windows

810: window frame

820: open

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: Figure 1 is a side view of a displayable light adjusting device according to an embodiment of the present invention; Figure 2 is a block diagram of the displayable light adjusting device of this embodiment; Figure 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: Displayable 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: second light-transmitting layer

500: laminated structure

Claims (9)

A displayable light adjusting device includes: a first light-transmitting layer; a second light-transmitting layer disposed opposite to the first light-transmitting layer; and a display module laminated on the first light-transmitting layer and the second light-transmitting layer Between the light-transmitting layers, the display module includes a display panel, a light source module, and a touch panel. The display panel is stacked between the light source module and the touch panel, and the touch panel is stacked on Between the second light-transmitting layer and the display panel, the light source module is used to provide a display light source to the display panel; an adjustable light-shielding layer is laminated between the first light-transmitting layer and the display module, The light transmittance of the adjustable light shielding layer is adjustable; 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 When, 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 control unit electrically connected to the adjustable light-shielding layer for controlling a specific voltage to the adjustable light-shielding layer to adjust incident light entering the display module Light intensity; and 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 Specific voltage to the adjustable light-shielding layer to adjust the transmittance of the adjustable light-shielding layer Light rate. The displayable light adjusting device according to claim 2, wherein the control unit electronically controls the adjustable light shielding layer to operate synchronously with the light source module. The displayable light adjustment device according to claim 1, wherein the response time of the adjustable light shielding layer is less than 3 minutes. The displayable light adjusting device according to claim 1, wherein the adjustable light-shielding layer is one of a polymer liquid crystal cell, a suspended particle cell, and an electrochromic cell. The displayable light adjusting device according to claim 5, wherein 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. The displayable light adjustment device according to claim 5, wherein the electrochromic unit includes a first transparent conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, and a second transparent layer that are sequentially stacked A conductive layer, wherein the first transparent conductive layer is directly sandwiched between the electrochromic layer and the first light-transmitting layer, and the second transparent conductive layer is directly sandwiched between the ion storage layer and the second light-transmitting layer Between, where, when a specific voltage is applied and a specific electric field is generated to the first transparent conductive Between the electrical layer and the second transparent conductive layer, the electrochromic layer changes color. The displayable light adjusting device according to claim 1, further comprising: a window frame surrounded and fixed by the first light-transmitting layer, the adjustable light-shielding layer, the display module and the second light-transmitting layer Synthesize a superimposed structure. The displayable light adjusting device according to claim 1, wherein the first light-transmitting layer and the second light-transmitting layer are respectively a flexible sheet.

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