TWI679481B - Display - Google Patents

Abstract

The invention provides a display, which comprises a plurality of display units and at least one photochromic structure for combining into a display device. Each display unit includes a first substrate and a second substrate opposite to each other, and a sealant disposed between the first substrate and the second substrate. The light intensities of two adjacent display units are I ₁ and I _{2, respectively} . The photochromic structure is disposed at the boundary between two adjacent display units, and the light transmittance of the photochromic structure is directly proportional to the average of I ₁ and I ₂ .

Description

monitor

The present invention relates to a display, and more particularly, to a spliced display.

With the development of technology, the demand for the use of large-sized displays has gradually increased, such as large-scale advertising panels or monitor screens commonly used in outdoor, but large-sized displays are limited by the size and process of glass substrates, so often by splicing multiple The display panel is combined to form a large-sized display device.

However, the borders of the display panel are mostly black or other dark colors. Therefore, there are obvious dark stitching seams between two adjacent display panels, which leads to the problem of discontinuous overall picture of the spliced display device. Negatively impact user viewing quality.

The invention provides a display, which can improve the problem of discontinuity of the overall picture to improve the viewing quality of the user.

An embodiment of the present invention provides a display, which includes a plurality of display units and at least one photochromic structure for combining into a display device. Each display unit includes a first substrate and a second substrate opposite to each other, and a sealant disposed between the first substrate and the second substrate. The light intensities of two adjacent display units are I ₁ and I _{2, respectively} . The photochromic structure is disposed at the boundary between two adjacent display units, and the light transmittance of the photochromic structure is directly proportional to the average of I ₁ and I ₂ .

Based on the above, in the display of the present invention, since the photochromic structure is disposed at the boundary between two adjacent display units, and the light transmittance of the photochromic structure is equal to the average value of I ₁ and I ₂ In direct proportion, this can improve the problem of discontinuity in the overall picture, so as to improve the viewing quality of the user.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

Hereinafter, the present invention will be explained more fully with reference to the drawings of this embodiment. However, the present invention may be embodied in various forms and should not be limited to the embodiments described herein. The dimensions and thicknesses of the components in the drawings are appropriately adjusted for clarity, and the invention is not limited thereto. The same or similar reference numbers indicate the same or similar elements, and the following paragraphs will not repeat them one by one. In addition, the directional terms mentioned in the embodiments, such as: up, down, left, right, front, or rear, are only directions referring to the attached drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

FIG. 1A is a schematic cross-sectional view of a display according to an embodiment of the invention. FIG. 1B is a schematic top view of a display according to an embodiment of the invention. FIG. 1C is an enlarged schematic view of a portion framed by a region R in FIG. 1A.

Referring to FIG. 1A and FIG. 1B, the display 100 may include a plurality of display units DU1, DU2, DU3, DU4 and at least one photochromic structure PCS for combining into a display device DD. In this embodiment, the display 100 may be a mosaic display device composed of a plurality of display units DU1 to DU4. It should be noted that the display device DD of this embodiment is a combination of four display units DU1 to DU4 (as shown in FIG. 1B), but the present invention is not limited thereto. In other embodiments, the display device DD may be a combination of other numbers of display units. On the other hand, the display units DU1 to DU4 in this embodiment are described by taking a rectangle as an example, but the present invention is not limited thereto. In other embodiments, the display unit may be circular, hexagonal, octagonal, or other suitable shapes.

Each of the display units DU1 to DU4 may include a first substrate S1 and a second substrate S2 opposite to each other, and a sealant SL1 disposed between the first substrate S1 and the second substrate S2. In some embodiments, a backlight, a light-emitting diode (such as an organic light-emitting diode or an inorganic light-emitting diode), or a combination thereof may be used as the light-emitting source of the display units DU1 to DU4. The display units DU1 to DU4 may be liquid crystal display units, light-emitting diode display units, or other suitable display units. In this embodiment, the light intensities of two adjacent display units DU1 to DU4 are respectively I ₁ and I ₂ (as shown in FIG. 1A, the light rays L1 and L2 emitted by the two adjacent display units DU1 and DU2 are The light intensities are I ₁ and I ₂ respectively. In this embodiment, the first substrate S1 may be an active array substrate, and the second substrate S2 may be a color filter substrate, but the present invention is not limited thereto.

In this embodiment, the sealant SL1 may be disposed at the boundary of each display unit DU1 to DU4. For example, the sealant SL1 may be disposed around each display unit DU1 to DU4. The frame adhesive SL1 may be an ultraviolet curing adhesive, an infrared curing adhesive, a thermal curing adhesive, or a combination thereof. The material may be acrylate, epoxy resin, or acrylic epoxy resin. (acrylate epoxy resin), but not limited to this. In some embodiments, the display units DU1 to DU4 may include a display medium layer (not shown) disposed in a space defined by the first substrate S1, the second substrate S2, and the frame adhesive SL1. The display medium layer may be, for example, a liquid crystal layer. For example, the medium layer may include liquid crystal molecules that can be rotated or switched by a horizontal electric field or liquid crystals that can be rotated or switched by a vertical electric field. Molecules, but not limited thereto, may also be other suitable display media such as organic light emitting diodes, inorganic light emitting diodes, and the like.

Please refer to FIG. 1A and FIG. 1C at the same time. The photochromic structure PCS may be disposed between the surrounding frame SL1 and the second substrate in each display unit DU1 to DU4. Therefore, the photochromic structure PCS is disposed in each display unit DU1. Around DU4, in other words, the junction BD between any two adjacent display units DU1, DU2 in the mosaic display device DD, and the light transmittance T% of the photochromic structure PCS is similar to that of the adjacent two The average values of the light intensities I ₁ and I ₂ of the display units DU1 and DU2 are proportional to each other. That is, when the average value of I ₁ and I ₂ of the two adjacent display units DU1 and DU2 is higher, the light transmittance T% of the photochromic structure PCS is higher, and the light is more transparent. The lower the average value of I ₁ and I ₂ of the two display units DU1 and DU2 is, the lower the light transmittance T% of the photochromic structure PCS is, and the less opaque it is. The light transmittance T% of the photochromic structure PCS can be changed by the absorbed light intensity (the average value of I ₁ and I ₂ ) to reduce the splicing area (for example, the two adjacent display units DU1, DU2). And the brightness difference between the display boundary) and the display area, so that the obvious stitching seam between the two adjacent display units DU1, DU2 can be avoided, so as to improve the problem of discontinuity of the overall picture and make the user's viewing Quality can be improved.

On the other hand, since the light transmittance of the photochromic structure PCS decreases as the intensity of the absorbed light becomes weaker, even in a state where the display 100 is not displaying a picture (or a state where the brightness is low), No obvious splicing seam will appear between any two adjacent display units DU1 to DU4, and it is not easy for a viewer to see the internal components of the display 100 from the splicing area. That is, whether the display 100 is in a state of presenting a picture or a state of not presenting a picture, the entire picture has good quality. For example, if the light intensity absorbed by the photochromic structure PCS (the average of I ₁ and I ₂ ) is large, the photochromic structure PCS appears transparent; and when the photochromic structure PCS absorbs the light intensity (I _If the average value of ₁ and I ₂ ) is small, the photochromic structure PCS exhibits a dark state.

In some embodiments, the photochromic structure PCS may include an ionic dye compound such as a compound represented by the following Chemical Formula 1. The above-mentioned ionic dye compounds have a color when not illuminated (or light intensity is weak), and after the visible light absorbs visible light, they can initiate polymerization or cross-linking free radicals, making the photochromic structure PCS in a transparent state or white state. [Chemical Formula 1]

In Chemical Formula 1, R1 to R4 may be the same as or different from each other, and may be each independently selected from an alkyl group, an aryl group, an aralkyl group, an alkaryl group, and an alkenyl group ( Any one of the groups consisting of alkenyl, alkynyl, alicyclic, heterocyclic, and allyl.

In Chemical Formula 1, D may be selected from the group consisting of methine, polymethine, triarylmethane, indoline, thiazine, xanthene, Composed of oxazine, azine, cyanine, carbocyanine, hemicyanine, rhodamine and azamethine Any of the ethnic groups.

In Chemical Formula 1, B may be selected from any one of the group consisting of xanthene and oxonol.

In addition, as shown in FIG. 1B, the photochromic structure PCS may be disposed around each of the display units DU1 to DU4. That is, the vertical projection of the photochromic structure PCS on the first substrate S1 may be substantially similar to the vertical projection of the sealant SL1 on the first substrate S1, but the invention is not limited thereto. FIG. 2 is a schematic top view of a display according to another embodiment of the present invention. As shown in FIG. 2, the display 100 may optionally include a light-shielding material SM disposed around the display device DD, such that the photochromic structure PCS may be selectively disposed only between any two adjacent display units DU1 to DU4. The light-shielding material SM may be an opaque material, such as a material suitable for a black matrix.

Please refer to Figure 3. FIG. 3 is a schematic partial cross-sectional view of a display according to another embodiment of the present invention. As shown in FIG. 3, in some embodiments, the photochromic structures PCS may be plural and separated from each other, and are arranged side by side around each display unit. When the light intensities of two adjacent display units are different, Since the light transmittance T% of the photochromic structure PCS can be changed by the absorbed light intensity, the light transmittance of the photochromic structure PCS varies with the distance from two adjacent display units DU1 to DU4. The interface between them is gradually changing. In this way, the light transmittance of each photochromic structure PCS can be adjusted by the absorbed light intensity (the average of I ₁ and I ₂ ), which can further reduce the splicing area (such as two adjacent The difference in brightness between the display units DU1 to DU4) and the display area makes the overall picture continuity better and further improves the viewing quality of the user.

Please refer to FIGS. 4A to 4C. 4A to 4C are schematic top views of a display according to another embodiment of the present invention. In addition to the photochromic structure PCS, the photochromic structure PCS can be arranged separately or in addition to the display unit. In some embodiments, the above-mentioned separated photochromic structures PCS can be arranged in a matrix ( (As shown in FIG. 4A), but the present invention is not limited thereto. In other embodiments, the arrangement of the plurality of photochromic structures PCS separated from each other may also be arranged in an offset manner (as shown in FIGS. 4B and 4C). In addition, the present invention does not limit the shape or number of the photochromic structure PCS. For example, the photochromic structure PCS may be rectangular (as shown in FIG. 4A and FIG. 4B) or hexagonal (as shown in FIG. 4C).

Please continue to refer to FIGS. 1A and 1C and FIG. 5, which is a schematic cross-sectional view of a display according to another embodiment of the present invention. The photochromic structure PCS may be disposed in the display units DU1 to DU4 (for example, the photochromic structure PCS is disposed between the frame rubber SL1 and the second substrate S2 in each display unit DU1 to DU4, but this The invention is not limited to this. In other embodiments, the photochromic structure PCS may be disposed on the display units DU1 to DU4 (for example, the photochromic structure PCS is disposed at the junction of the display units DU1 to DU4 (as shown in FIG. 5). Show).

6 is a schematic cross-sectional view of a display according to yet another embodiment of the present invention. The display 200 is substantially the same as the display 100. The difference is that the sealant SL2 of the display 200 is used as a photochromic structure. Therefore, the same or similar components use the same or Similar reference numerals, connection relationships, materials, and processes of the remaining components have been described in detail in the foregoing, so they will not be repeated hereafter.

In some embodiments, as shown in FIG. 6, the sealant SL2 of the display 200 can be used as a photochromic structure, that is, the same photochromic material as that of the photochromic structure PCS is adopted or contained, so that the light of the sealant SL2 passes through The transmittance is directly proportional to the average of I ₁ and I ₂ . In this way, when the thickness of the frame adhesive SL2 is larger than the photochromic structure PCS shown in FIG. 1A, the splicing area can be further reduced (for example, the junction between any two adjacent display units DU1 to DU4) The brightness difference between the display area and the display area makes the overall picture continuity better.

In some embodiments, the display 200 may optionally include a reflective layer RL disposed between the sealant SL2 and the first substrate S1. In this way, when light can be reflected to the light emitting surface through the reflective layer RL, the brightness difference between the splicing area and the display area can be further reduced, so that the continuity of the overall picture is better. In some embodiments, the material of the reflective layer RL may include a material capable of reflecting visible light, such as aluminum (Al), silver (Ag), chromium (Cr), copper (Cu), nickel (Ni), titanium (Ti), Molybdenum (Mo), magnesium (Mg), platinum (Pt), gold (Au), or a combination thereof.

In summary, in the display of the above embodiment, the photochromic structure is disposed at the boundary between two adjacent display units, and the light transmittance of the photochromic structure is the same as that of I ₁ and I ₂ . When the average value is proportional, the light transmittance of the photochromic structure can be adjusted by the absorbed light intensity (the average value of I ₁ and I ₂ ) to reduce the splicing area (such as two adjacent displays) The brightness difference between the junction between the units) and the display area, to avoid the obvious splicing seam between two adjacent display units, to improve the problem of discontinuity in the overall picture, so that the viewing quality of the user can be improved .

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

100, 200‧‧‧ Display

DD‧‧‧display device

DU1, DU2, DU3, DU4‧‧‧ display units

PCS‧‧‧Photochromic structure

DD‧‧‧display device

S1‧‧‧First substrate

S2‧‧‧Second substrate

SL1, SL2‧‧‧‧Frame glue

SM‧‧‧ Shading material

RL‧‧‧Reflective layer

R‧‧‧ area

L1, L2‧‧‧‧light

I ₁ , I ₂ ‧‧‧ light intensity

BD‧‧‧ Junction

FIG. 1A is a schematic cross-sectional view of a display according to an embodiment of the invention. FIG. 1B is a schematic top view of a display according to an embodiment of the invention. FIG. 1C is an enlarged schematic view of a portion framed by a region R in FIG. 1A. FIG. 2 is a schematic top view of a display according to another embodiment of the present invention. FIG. 3 is a schematic partial cross-sectional view of a display according to another embodiment of the present invention. 4A to 4C are schematic top views of a display according to another embodiment of the present invention. FIG. 5 is a schematic cross-sectional view of a display according to another embodiment of the present invention. FIG. 6 is a schematic cross-sectional view of a display according to still another embodiment of the present invention.

Claims (12)

A display includes: a plurality of display units for assembling a display device, each display unit including a first substrate and a second substrate disposed oppositely, and a display disposed between the first substrate and the second substrate Frame glue, wherein the light intensities of two adjacent display units are I ₁ and I _{2 respectively} ; and at least one photochromic structure is provided at the junction between two adjacent display units, the at least one photo-induced The light transmittance of the color-changing structure is proportional to the average value of I ₁ and I ₂ . The display according to item 1 of the patent application scope, wherein the photochromic structure includes an ionic dye compound. The display according to item 1 of the patent application scope, wherein the photochromic structure includes a compound represented by Chemical Formula 1: [Chemical Formula 1]

Wherein R1 to R4 are the same as or different from each other, and are independently selected from alkyl, aryl, aralkyl, alkaryl, alkenyl, alkynyl ( any one of the group consisting of alkynyl, alicyclic, heterocyclic and allyl, D is selected from methine and polymethine , Triarylmethane, indoline, thiazine, xanthene, oxazine, azine, cyanine, carbocyanine ), hemicyanine (hemicyanine), rhodamine (rhodamine) and azamethine (azamethine) of any group consisting of B selected from xanthene (oxanthene) and oxonol (oxonol) Any of the ethnic groups formed. The display according to item 1 of the patent application scope, wherein the at least one photochromic structure is disposed between the sealant and the second substrate in each display unit. The display according to item 1 of the patent application scope, wherein the at least one photochromic structure is only provided on the junction of the display units. The display according to item 1 of the patent application scope, wherein the at least one photochromic structure is further disposed around each of the display units. The display as described in item 1 of the scope of the patent application further includes: a light-shielding material disposed around the display device. The display according to item 1 of the patent application scope, wherein the at least one photochromic structure is plural, the photochromic structures are separated from each other, and are arranged side by side around each display unit, and the photochromic structures The light transmittance changes gradually as it moves away from the junction between two adjacent display units. The display as described in item 8 of the patent application range, wherein the photochromic structures are arranged around each display unit in a matrix arrangement. The display as described in item 9 of the patent application scope, wherein the photochromic structures are arranged in misalignment. The display according to item 1 of the patent application scope, wherein the sealant contains a photochromic material, so that the light transmittance of the sealant is proportional to the average value of I ₁ and I ₂ . The display described in item 11 of the patent application scope further includes: a reflective layer disposed between the sealant and the first substrate.