TWI761102B - Combined display device with adjustable chromatic aberration - Google Patents

Abstract

A combined display device with adjustable chromatic aberration has a first conductive light-transmitting plate, a second conductive light-transmitting plate and a liquid crystal component. The color of the first conductive light-transmitting plate is a color with positive b* values in CIE Lab color space. The color of the second conductive light-transmitting plate is a color with negative b* values in CIE Lab color space. The liquid crystal is disposed between the first conductive light-transmitting plate and the second conductive light-transmitting plate. Therefore, the first conductive light-transmitting plate and the second conductive light-transmitting plate adjust a chromatic aberration formed between two light transmission surfaces of the liquid crystal component such that an emitting light trends to white balance.

Description

A composite display device that adjusts chromatic aberration

The present invention relates to a display device, in particular to a composite display device for adjusting color difference.

Transparent conductive films are respectively arranged on the light incident surface and the light emitting surface of the liquid crystal element of the liquid crystal display device (LCD, Liquid Crystal Display). In addition, the transparent conductive film is energized to form an electric field between the light-incident surface and the light-emitting surface of the liquid crystal element, thereby changing the alignment direction of the liquid crystal molecules of the liquid crystal element, thereby realizing the regulation of the optical properties of the liquid crystal element, wherein The transparent conductive film not only serves as an electrode element for forming an electric field, but also provides light penetration due to its transparent nature.

However, in order to facilitate the fabrication of electrode elements, the liquid crystal elements of the prior art liquid crystal display devices are all equipped with transparent conductive films of the same style. For example, the light-incident surface and the light-emitting surface of the liquid crystal element are provided with a transparent conductive film with a yellowish color; or, the light-incident surface and the light-emitting surface of the liquid crystal element are both provided with a blue-colored transparent conductive film. That is to say, the liquid crystal display device of the prior art exhibits a yellowish or bluish chromatic aberration, and cannot present a nearly white visual effect.

Therefore, the purpose of the present invention is to provide a composite display device for adjusting chromatic aberration, which can make the displayed chromatic aberration close to white balance and improve the lack of yellowish or blueish chromatic aberration in the conventional liquid crystal display device.

The technical means adopted by the present invention to solve the problems of the prior art is to provide a composite display device for adjusting color difference, comprising: a first conductive light-transmitting substrate, the color of which belongs to a b* value that is a positive value in the CIE Lab color space the color of the second conductive light-transmitting carrier plate, the color of which belongs to the color with a negative b* value in the CIE Lab color space; Two conductive light-transmitting carriers are disposed between the first conductive light-transmitting carrier and the second conductive light-transmitting carrier in a manner that they are respectively disposed on the upper and lower light transmission surfaces of the liquid crystal element, so that the second conductive light-transmitting carrier is After a conductive light-transmitting carrier and the second conductive light-transmitting carrier form an electric field, the liquid crystal element exhibits light-transmitting properties, and the first conductive light-transmitting carrier cooperates with the second conductive light-transmitting carrier to adjust the liquid crystal element The chromatic aberration of the two light transmission surfaces makes the light output tend to white balance.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the b* value of the first conductive light-transmitting carrier is in the range of 1 to 100 to be biased toward yellow.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the first conductive light-transmitting carrier has a conductive film layer on the surface, and the conductive film layer has ITO (Indium tin oxide, tin-doped indium oxide) ), nanosilver film, nanosilver wire or metal mesh.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the b* value of the second conductive light-transmitting carrier is in the range of -1 to -100 to be biased towards blue.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the second conductive light-transmitting carrier has a conductive film layer on the surface, and the conductive film layer has PEDOT (Poly-3, 4-Ethylenedioxythiophene) ).

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the first conductive light-transmitting carrier and the second conductive light-transmitting carrier respectively cover two of the lights connected to the liquid crystal element transmission surface.

In an embodiment of the present invention, a composite display device for adjusting color difference is provided, wherein the liquid crystal element is a type A smectic liquid crystal and has optical bistable characteristics. After the electric field between the two conductive light-transmitting substrates disappears, the liquid crystal element still maintains the original light-transmitting properties.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the liquid crystal element is a cholesteric liquid crystal and has optical bistable characteristics, and the first conductive transparent carrier and the second conductive transparent substrate After the electric field between the carriers disappears, the liquid crystal element still maintains the original light-transmitting properties.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the first conductive light-transmitting carrier and the second conductive light-transmitting carrier are applied with a current of a predetermined waveform, a current of a predetermined frequency, or voltage to form an electric field.

In an embodiment of the present invention, a composite display device for adjusting chromatic aberration is provided, wherein the substrate of the first conductive light-transmitting carrier is a plastic film or glass, and the substrate of the second conductive and light-transmitting carrier is a plastic film or glass. For plastic film or glass.

Through the technical means adopted by the composite display device for adjusting color difference of the present invention, the color difference displayed is close to white balance, and the lack of color difference that is yellowish or blueish in the conventional liquid crystal display device is improved. In addition, the energy consumption for activating the electric field between the first conductive light-transmitting carrier and the second conductive light-transmitting carrier is saved.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5 . This description is not intended to limit the embodiments of the present invention, but is an example of the present invention.

As shown in FIG. 1 to FIG. 3, a composite display device 100 for adjusting color difference according to an embodiment of the present invention includes: a first conductive light-transmitting carrier 1, a second conductive light-transmitting carrier 2, and a liquid crystal Element 3. In this way, the present invention can make the displayed chromatic aberration close to white balance, and improve the lack of yellowish or bluish chromatic aberration in the conventional liquid crystal display device.

As shown in FIG. 1 to FIG. 3 , the color of the first conductive light-transmitting substrate 1 belongs to a color with a positive b* value in the CIE Lab color space. The base material of the first conductive light-transmitting carrier 1 is a plastic film or glass.

Further, as shown in Figure 2, the CIE Lab color space is also known as the CIE 1976 (L*, a*, b*) color space (ie, Lab color space), where L*, a* and b* represent three basic coordinates, respectively. Specifically, L* represents the brightness of the color; when L*=0, it represents black; when L*=100, it represents white. a* is an indicator that represents the opposite color of red and green; when a* is negative, it represents green; when a* is positive, it represents red. b* is an index representing the opposite color of blue and yellow; when b* is negative, it represents blue; when b* is positive, it represents yellow.

Specifically, as shown in FIG. 1 to FIG. 3 , in the composite display device 100 for adjusting color difference according to an embodiment of the present invention, the b* value of the first conductive light-transmitting substrate 1 is in the range of 1 to 100 to favor yellow.

According to an embodiment of the composite display device for adjusting chromatic aberration, the first conductive light-transmitting carrier 1 has a conductive film layer on the surface, and the conductive film layer has ITO (Indium tin oxide, tin-doped indium oxide), Nanosilver film, nanosilver wire or metal grid. Specifically, the b* value of the ITO substrate is about 2.3 and is biased towards yellow.

As shown in FIG. 1 to FIG. 3 , the color of the second conductive light-transmitting substrate 2 is a color with a negative b* value in the CIE Lab color space. The base material of the second conductive light-transmitting carrier 2 is a plastic film or glass.

Further, as shown in FIG. 1 to FIG. 3 , in the composite display device 100 for adjusting color difference according to an embodiment of the present invention, the b* value of the second conductive light-transmitting substrate 2 ranges from − 1 to -100 to favor blue.

According to an embodiment of the composite display device for adjusting chromatic aberration, the second conductive light-transmitting carrier 2 has a conductive film layer on the surface, and the conductive film layer has PEDOT (Poly-3, 4-Ethylenedioxythiophene). Further, the b* value of the PEDOT carrier is about -2 with a blue bias.

As shown in FIGS. 1 to 3 , the liquid crystal element 3 is arranged on the upper and lower light transmission surfaces of the liquid crystal element 3 with the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 respectively. 31 and 32 are arranged between the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 .

In detail, as shown in FIGS. 1 to 3 , the present invention is not limited to the fact that the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 are in direct contact with the liquid crystal element 3 . That is to say, other optical elements, such as an alignment film, can be arranged between the first conductive light-transmitting substrate 1 and the liquid crystal element 3 as required. In addition, other optical elements, such as an alignment film, can also be arranged between the second conductive light-transmitting carrier 2 and the liquid crystal element 3 according to requirements.

In the specific implementation, as shown in FIGS. 1 to 3 , in the composite display device 100 for adjusting chromatic aberration according to an embodiment of the present invention, the first conductive light-transmitting carrier 1 and the second conductive light-transmitting substrate 1 The carrier 2 applies electrical energy in the form of a current of a predetermined waveform, a current of a predetermined frequency or a voltage, and an electric field E is formed between the first conductive and transparent carrier 1 and the second conductive and transparent carrier 2 .

For example, in the composite display device 100 for adjusting chromatic aberration according to an embodiment of the present invention, the liquid crystal element 3 is a type A smectic liquid crystal with optical bistable characteristics. That is to say, after the electric field between the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 disappears, the liquid crystal element 3 still maintains the original light-transmitting property. Therefore, the composite display device 100 for adjusting color difference of the present invention can reduce the application of electric energy to the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2, thereby saving the activation of the first conductive light-transmitting carrier The energy consumption of the electric field between the board 1 and the second conductive light-transmitting carrier board 2 .

Of course, the present invention is not limited to "the liquid crystal element 3 is a type A smectic liquid crystal". In the composite display device 100 for adjusting chromatic aberration according to an embodiment of the present invention, the liquid crystal element 3 can also be a cholesteric liquid crystal with optical bistable characteristics. In other words, after the electric field between the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 disappears, the liquid crystal element 3 still maintains the original light-transmitting property. Similarly, under the condition that the liquid crystal element 3 adopts cholesteric liquid crystal, the composite display device 100 for adjusting color difference of the present invention can also save the time required to activate the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 energy dissipation in the electric field.

As shown in FIG. 1 to FIG. 3 , after the electric field E is formed on the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 , the liquid crystal element 3 exhibits light-transmitting properties. Moreover, in the present invention, the first conductive light-transmitting carrier 1 cooperates with the second conductive light-transmitting carrier 2 to adjust the chromatic aberration of the two light-transmitting surfaces 31 and 32 of the liquid crystal element 3 so that the emitted light tends to be white. balance. That is to say, the composite display device 100 for adjusting the color difference of the present invention can make the b* value approach zero (specifically, the b* value is about 0.4), so that the light output tends to white balance.

Of course, the present invention is not limited to the above-mentioned arrangement mode for the arrangement mode between the first conductive light-transmitting carrier 1 , the second conductive light-transmitting carrier 2 , and the liquid crystal element 3 . As shown in FIG. 4 and FIG. 5, in the composite display device 100A for adjusting chromatic aberration according to an embodiment of the present invention, the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 cover respectively The two light transmission surfaces 31 and 32 are connected to the liquid crystal element 3 . That is to say, the first conductive light-transmitting carrier 1 is directly in contact with the light transmission surface 31 of the liquid crystal element 3 , and the second conductive light-transmitting carrier 2 is directly in contact with the light transmission surface of the liquid crystal element 3 . face 32. Similarly, after the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 form an electric field E, the liquid crystal element 3 exhibits light-transmitting properties and the first conductive and light-transmitting carrier 1 cooperates with the second conductive light-transmitting carrier 1 . The conductive light-transmitting carrier 2 adjusts the chromatic aberration of the two light-transmitting surfaces 31 and 32 of the liquid crystal element 3 so that the light output tends to white balance.

As can be seen from the above, the technical means of the present invention is to provide a composite display device 100 for adjusting chromatic aberration, comprising: a first conductive light-transmitting substrate 1 whose color belongs to a color with a positive b* value in the CIE Lab color space; The second conductive light-transmitting carrier plate 2, the color of which belongs to the color with a negative b* value in the CIE Lab color space; The second conductive light-transmitting carrier 2 is disposed between the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 in a manner of being disposed on the upper and lower light transmission surfaces 31 and 32 of the liquid crystal element 3 respectively. In this way, after the first conductive light-transmitting carrier 1 and the second conductive light-transmitting carrier 2 form an electric field E, the liquid crystal element 3 exhibits light-transmitting properties, and the first conductive light-transmitting carrier 1 cooperates with The second conductive light-transmitting carrier 2 adjusts the chromatic aberration of the two light transmission surfaces 31 and 32 of the liquid crystal element 3 so that the light output tends to be in a white balance.

To sum up, the composite display device 100 for adjusting chromatic aberration of the present invention transmits the first conductive light-transmitting substrate 1 (a color with a positive b* value in the CIE Lab color space) and the second conductive light-transmitting substrate 1 . The light carrier 2 (color with negative b* value in the CIE Lab color space) is respectively disposed on the upper and lower light transmission surfaces 31 and 32 of the liquid crystal element 3, so that the color difference presented is close to white balance. In addition, the present invention also improves the lack of color difference that the conventional liquid crystal display device exhibits yellowish or bluish chromatic aberration.

Furthermore, the composite display device 100 for adjusting chromatic aberration of the present invention can also use A-type smectic liquid crystal or cholesteric liquid crystal as the liquid crystal element 3, so as to reduce the impact on the first conductive light-transmitting substrate 1 and the second transparent substrate 1. The conductive light-transmitting carrier 2 applies electrical energy, so as to save energy consumption for activating the electric field between the first conductive and light-transmitting carrier 1 and the second conductive and light-transmitting carrier 2 .

The above descriptions and descriptions are only descriptions of preferred embodiments of the present invention. Those with ordinary knowledge in the art can make other modifications according to the scope of the patent application defined below and the above descriptions, but these modifications should still be It is within the scope of the right of the present invention for the inventive spirit of the present invention.

100: A composite display device that adjusts chromatic aberration 100A: Composite display device for adjusting chromatic aberration 1: The first conductive light-transmitting carrier 2: Second conductive light-transmitting carrier 3: Liquid crystal element 31: Light transmission surface 32: Light transmission surface E: electric field

[FIG. 1] is a schematic diagram showing a composite display device for adjusting chromatic aberration according to an embodiment of the present invention; [Fig. 2] is a schematic diagram showing the CIE Lab color space related to the composite display device for adjusting color difference according to an embodiment of the present invention; [FIG. 3] is a schematic diagram showing the implementation of a composite display device for adjusting chromatic aberration according to an embodiment of the present invention; [FIG. 4] is a schematic diagram showing a composite display device for adjusting chromatic aberration according to another embodiment of the present invention; and [FIG. 5] shows a schematic diagram of the implementation of a composite display device for adjusting color difference according to another embodiment of the present invention.

100: A composite display device that adjusts chromatic aberration

1: The first conductive light-transmitting carrier

2: Second conductive light-transmitting carrier

3: Liquid crystal element

31: Light transmission surface

32: Light transmission surface

Claims (8)

A composite display device for adjusting chromatic aberration, comprising: a first conductive light-transmitting carrier, the color of which belongs to a color with a positive b* value in the CIE Lab color space, wherein the b* value of the first conductive light-transmitting carrier The range is from 1 to 100 to be biased towards yellow; the color of the second conductive light-transmitting carrier plate belongs to the color of the negative b* value in the CIE Lab color space, wherein the b* value of the second conductive light-transmitting carrier plate is less than The range is -1 to -100 to be biased towards blue; and, a liquid crystal element, the liquid crystal element is arranged with the first conductive light-transmitting carrier plate and the second conductive light-transmitting carrier plate respectively above and below the liquid crystal element. The transmission surface is arranged between the first conductive light-transmitting carrier and the second conductive light-transmitting carrier, thereby forming an electric field between the first conductive and light-transmitting carrier and the second conductive and light-transmitting carrier After that, the liquid crystal element exhibits light-transmitting properties, and the first conductive light-transmitting carrier cooperates with the second conductive light-transmitting carrier to adjust the color difference between the two light transmission surfaces of the liquid crystal element so that the light output tends to white balance . The composite display device for adjusting chromatic aberration according to claim 1, wherein the first conductive light-transmitting carrier has a conductive film layer on the surface, and the conductive film layer has ITO (Indium tin oxide, tin-doped indium oxide), nanometer Silver films, nanosilver wires or metal grids. The composite display device for adjusting chromatic aberration according to claim 1, wherein the second conductive light-transmitting carrier has a conductive film layer on the surface, and the conductive film layer has PEDOT (Poly-3,4-Ethylenedioxythiophene). The composite display device for adjusting chromatic aberration according to claim 1, wherein the first conductive light-transmitting carrier and the second conductive light-transmitting carrier respectively cover the two light transmission surfaces connected to the liquid crystal element. The composite display device for adjusting chromatic aberration as claimed in claim 1, wherein the liquid crystal element is a type A smectic liquid crystal and has optical bistable characteristics, and the first conductive light-transmitting carrier and the second conductive light-transmitting liquid crystal After the electric field between the carriers disappears, the liquid crystal element still maintains the original light-transmitting properties. The composite display device for adjusting chromatic aberration as claimed in claim 1, wherein the liquid crystal element is a cholesteric liquid crystal and has optical bistable characteristics, and is located between the first conductive light-transmitting carrier and the second conductive light-transmitting carrier After the electric field disappears, the liquid crystal element still maintains the original light-transmitting properties. The composite display device for adjusting chromatic aberration according to claim 1, wherein the first conductive light-transmitting carrier and the second conductive light-transmitting carrier are applied with a current of a predetermined waveform, a current or a voltage of a predetermined frequency to form an electric field . The composite display device for adjusting chromatic aberration according to claim 1, wherein the base material of the first conductive light-transmitting carrier is a plastic film or glass, and the base material of the second conductive light-transmitting carrier is a plastic film or glass.

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