TW202009581A - Display - Google Patents

Abstract

A display including a plurality of display units for assembling a display device and at least one photochromic structure is provided. Each of the display unit includes a first and a second substrate opposite to each other and a sealant disposed therebetween, wherein the light intensity of two adjacent display units are I1 and I2 respectively. The photochromic structure is disposed at the boundary of two adjacent display units, and the transmittance of the photochromic structure is proportional to the average of I1 and I2.

Description

monitor

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

With the development of technology, the demand for large-size displays has gradually increased, such as large outdoor advertising panels or monitor screens, etc., but large-scale displays are limited by the size and manufacturing process of glass substrates, so often by splicing multiple The display panel can be combined into a large-sized display device.

However, the borders of the display panels are mostly black or other dark colors. Therefore, there is a clear dark stitching gap between two adjacent display panels, which leads to the problem of a discontinuity in the overall picture of the stitched display device. Negatively affect the user's viewing quality.

The present invention provides a display that can improve the problem of discontinuity in the overall picture to improve the user's viewing quality.

An embodiment of the present invention provides a display including 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 disposed oppositely and a sealant disposed between the first substrate and the second substrate, wherein the light intensity of two adjacent display units is I ₁ and I _{2, respectively} . The photochromic structure is disposed at the junction between two adjacent display units, and the light transmittance of the photochromic structure is proportional to the average value 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 junction 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 Proportionally, this can improve the discontinuity of the overall picture to improve the user's viewing quality.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

The present invention will be explained more fully below with reference to the drawings of this embodiment. However, the present invention can also be embodied in various forms, and should not be limited to the embodiments described herein. The size and thickness of each member in the drawings will be 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, for example: up, down, left, right, front or back, etc., are only the directions referring to the attached drawings. Therefore, the directional terminology is used to illustrate rather than limit the 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 the portion framed by area R in FIG. 1A.

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

Each display unit DU1 DU4 may include a first substrate S1 and a second substrate S2 that are oppositely disposed, and a sealant SL1 disposed between the first substrate S1 and the second substrate S2. In some embodiments, a backlight panel, a light-emitting diode (for example, an organic light-emitting diode or an inorganic light-emitting diode), or a combination thereof may be used as the light source of the display units DU1 to DU4. The display units DU1~DU4 can 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~DU4 are I ₁ and I _{2 respectively} (as shown in FIG. 1A, the light L1, L2 emitted by the two adjacent display units DU1, DU2 The light intensity is I ₁ and I ₂ ). 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 invention is not limited thereto.

In this embodiment, the sealant SL1 may be disposed at the boundary of each display unit DU1~DU4. For example, the sealant SL1 may be disposed around each display unit DU1~DU4. The sealant SL1 can be ultraviolet curing adhesive, infrared curing adhesive, thermal curing adhesive or a combination thereof. The material can be acrylic, epoxy resin or acrylic epoxy (acrylate epoxy resin), but not limited to this. In some embodiments, the display units DU1 DU4 may include a display medium layer (not shown) disposed in the space defined by the first substrate S1, the second substrate S2, and the sealant 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 in-plane-switching 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 FIGS. 1A and 1C at the same time. The photochromic structure PCS can be disposed between the surrounding sealant SL1 and the second substrate in each display unit DU1~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 and DU2 in the spliced display device DD, and the light transmittance T% of the photochromic structure PCS is similar to 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 to say, when the average values of I ₁ and I ₂ of two adjacent display units DU1 and DU2 are higher, the higher the light transmittance T% of the photochromic structure PCS, the more light is transmitted; When the average values of I ₁ and I ₂ of the two display units DU1 and DU2 are lower, the lower the light transmittance T% of the photochromic structure PCS, the more opaque. 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 (such as the adjacent two display units DU1, DU2) The brightness difference between the display area and the display area, so as to avoid the obvious joint between the two adjacent display units DU1 and DU2, so as to improve the overall picture discontinuity and make the user watch The quality can be improved.

On the other hand, since the light transmittance of the photochromic structure PCS will decrease as the absorbed light intensity becomes weaker, even in a state where the display 100 does not present a picture (or a state where the brightness is low), There is still no obvious splicing seam between any two adjacent display units DU1 to DU4, and it is not easy for the viewer to see the internal components of the display 100 from the splicing area. That is to say, whether the display 100 is in the state of presenting the picture or the state of not presenting the picture, the overall picture thereof has good quality. For example, if the light intensity absorbed by the photochromic structure PCS (the average value of I ₁ and I ₂ ) is large, the photochromic structure PCS will be in a transparent state; when the light intensity absorbed by the photochromic structure PCS (I The average value of ₁ and I ₂ ) is small, the photochromic structure PCS shows a dark state.

In some embodiments, the photochromic structure PCS may include an ionic dye compound, for example, a compound represented by Chemical Formula 1 below. The above-mentioned ionic dye compounds are colored when they are not illuminated (or the light intensity is weak), and after absorbing visible light through illumination, they can initiate polymerization or cross-linking free radicals, making the photochromic structure PCS in a transparent 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 independently selected from alkyl, aryl, aralkyl, alkaryl, and alkenyl ( Any one of the group consisting of alkenyl, alkynyl, alicyclic, heterocyclic and allyl.

In Chemical Formula 1, D may be selected from 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 display unit DU1 to DU4. That is to say, 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. 2 is a schematic top view of a display according to another embodiment of the invention. As shown in FIG. 2, the display 100 may optionally include a light-shielding material SM disposed around the display device DD, so 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, for example, a material suitable for a black matrix.

Please refer to Figure 3. 3 is a schematic partial cross-sectional view of a display according to another embodiment of the 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 intensity of two adjacent display units is 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 increases with the distance from the adjacent two display units DU1~DU4 At the junction between them there is a gradual change. 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 ones) The brightness difference between the display unit DU1 ~ DU4) and the display area makes the overall picture continuity better, further improving the user's viewing quality.

Please refer to FIGS. 4A to 4C. 4A to 4C are schematic top views of a display according to yet another embodiment of the invention. In addition to the photochromic structure PCS, the photochromic structure PCS can also be arranged separately besides the display unit. In some embodiments, the arrangement of the plurality of photochromic structures PCS separated from each other can be arranged in a matrix ( As shown in FIG. 4A), the invention is not limited to this. In other embodiments, the arrangement of the plurality of photochromic structures PCS separated from each other may also be arranged in a misaligned 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 FIGS. 4A and 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 still another embodiment of the present invention. The photochromic structure PCS may be disposed in the display units DU1 to DU4 (in-cell). For example, the photochromic structure PCS is disposed between the sealant SL1 and the second substrate S2 in each display unit DU1 to DU4. The invention is not limited to this. In other embodiments, the photochromic structure PCS may be disposed on the display units DU1~DU4 (on-cell), for example, the photochromic structure PCS is disposed on the junction of the display units DU1~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, wherein the display 200 is substantially the same as the display 100, the difference is that the sealant SL2 of the display 200 serves as a photochromic structure, so the same or similar components use the same or Similar symbols, the connection relationships, materials and manufacturing processes of the remaining components have been described in detail in the foregoing, so they will not be repeated in the following.

In some embodiments, as shown in FIG. 6, the sealant SL2 of the display 200 can be used as a photochromic structure, that is, using or containing the same photochromic material as the photochromic structure PCS, so that the light passing through the sealant SL2 The transmittance is proportional to the average of I ₁ and I ₂ . In this way, in the case where the thickness of the sealant SL2 is greater than the photochromic structure PCS as shown in FIG. 1A, the stitching area can be further reduced (for example, the junction between any two adjacent display units DU1~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, in the case where light can be reflected to the light exit surface through the reflective layer RL, the difference in brightness between the stitching area and the display area can be further reduced, making the overall picture continuity 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 provided at the junction between two adjacent display units, and the light transmittance of the photochromic structure is similar to 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 (for example, two adjacent displays The junction between the units) and the brightness difference between the display areas, to avoid obvious stitching between two adjacent display units, to improve the overall picture discontinuity, so that the user's viewing quality can be improved .

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

100、200‧‧‧Display DD‧‧‧Display device DU1, DU2, DU3, DU4‧‧‧‧Display unit PCS‧‧‧Photochromic structure DD‧‧‧Display device S1‧‧‧First substrate S2‧‧‧‧ The second substrate SL1, SL2‧‧‧frame glue SM‧‧‧ shading material RL‧‧‧reflective layer R‧‧‧region L1, L2‧‧‧ light I ₁ , I ₂ ‧‧‧ light intensity BD‧‧‧ junction Place

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

100‧‧‧Monitor

DU1, DU2‧‧‧Display unit

PCS‧‧‧Photochromic structure

S1‧‧‧The first substrate

S2‧‧‧Second substrate

SL1‧‧‧frame glue

R‧‧‧Region

L1, L2‧‧‧Light

I ₁ , I ₂ ‧‧‧ light intensity

BD‧‧‧ Junction

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 each independently selected from alkyl, aryl, aralkyl, alkaryl, alkenyl, and 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, rhodamine, and azamethine, and B is selected from xanthene and 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 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 according to item 8 of the patent application scope, 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.

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