CN112993128A - Display device - Google Patents
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- CN112993128A CN112993128A CN202110235759.8A CN202110235759A CN112993128A CN 112993128 A CN112993128 A CN 112993128A CN 202110235759 A CN202110235759 A CN 202110235759A CN 112993128 A CN112993128 A CN 112993128A
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- optical structure
- light
- display
- accommodating space
- emitting element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
Abstract
The invention provides a display. The display comprises an array substrate, an optical structure and a light-emitting element. The array substrate comprises a substrate and a driving element, and the driving element is arranged on the substrate. The optical structure is embedded in the array substrate, and the optical structure and the array substrate form a first accommodating space. The light-emitting element is arranged in the first accommodating space and electrically connected with the driving element, wherein the light-emitting surface of the light-emitting element faces the optical structure. A display including a second receiving space penetrating from the top surface of the array substrate to the top surface of the base is also provided.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to a display.
Background
In general, in a display, many factors directly affect the reliability and display quality, such as the alignment accuracy of light emitting elements and the brightness difference at different viewing angles, so that how to design a display with better reliability and display quality has become a challenge for researchers in the field.
Disclosure of Invention
The present invention provides a display with better reliability and display quality.
The invention provides a display, which comprises an array substrate, an optical structure and a light-emitting element. The array substrate comprises a substrate and a driving element, and the driving element is arranged on the substrate. The optical structure is embedded in the array substrate, and the optical structure and the array substrate form a first accommodating space. The light-emitting element is arranged in the first accommodating space and electrically connected with the driving element, wherein the light-emitting surface of the light-emitting element faces the optical structure.
The invention provides a display, which comprises an array substrate, an optical structure and a light-emitting element. The array substrate comprises a substrate and a driving element, wherein the driving element is arranged on the substrate. The optical structure is embedded in the array substrate, and the optical structure and the array substrate form a first accommodating space. The optical structure is provided with a first refraction layer and a second refraction layer, the shapes of the first refraction layer and the second refraction layer are complementary and matched in a concave-convex mode, and the refractive index of the first refraction layer is different from that of the second refraction layer. The light-emitting element is arranged in the first accommodating space and electrically connected with the driving element, wherein the light-emitting surface of the light-emitting element faces the optical structure.
The invention provides a display, which comprises an array substrate, a second accommodating space and a light-emitting element. The array substrate comprises a substrate and a driving element, and the driving element is arranged on the substrate. The second accommodating space penetrates from the top surface of the array substrate to the base, wherein the bottom size of the second accommodating space is larger than the top size of the second accommodating space. The light-emitting element is arranged in the second accommodating space and electrically connected with the driving element, wherein the light-emitting surface of the light-emitting element faces the substrate, and the top size of the second accommodating space is larger than that of the light-emitting element.
The display has the beneficial effects that the display is provided with the accommodating space for bearing the light-emitting element, such as the accommodating space formed by the array substrate and the optical structure, or the accommodating space which penetrates from the top surface of the array substrate to the top surface of the substrate, so that the alignment precision problem of the light-emitting element can be effectively improved, and further, the display has better reliability and display quality.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1-13 are partial cross-sectional views of displays according to some embodiments of the invention.
The reference numbers are as follows:
10. 20, 101, 201, 102, 202, 103, 203 hypotenuse
100. 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300 display
110 array substrate
112, substrate
114 drive element
1142 Source/Drain electrode
1144 grid electrode
1146 semiconductor layer
115 buffer layer
1151 interlayer insulating layer
1152 dielectric layer
116 black matrix layer
1171. 1172 protective layer
118 line layer
120. 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120 optical structure
120a, 220a, 320a, 420a, 520a, 620a top surface
122. 222 recess of
130 light emitting element
130a light-emitting surface
424. 524, 624, 722, 724, 726, 822, 824, 922, 924 refractive layer
D, the driver
O1, O2 containing space
OB bottom
OT top
OS sidewall
Angle of inclination of emergent light of theta 1 and theta 2
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a thorough understanding of various embodiments of the invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some well-known structures and elements are omitted or simply illustrated in the drawings for the sake of simplicity.
Throughout the specification, the same reference numerals denote the same or similar elements. In the drawings, the thickness of layers, films, panels, regions, etc. have been exaggerated for clarity. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no other elements present between the element and the other element. As used herein, "connected" may refer to physical and/or electrical connections. Further, two elements may be "electrically connected" or "coupled" to each other such that there may be other elements between the two elements.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. For example, the use of "a," "an," and "the" herein is not intended to limit the elements to the singular or the plural. As used herein, "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.
Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, other elements described as being on the "lower" side of the element would then become oriented on the "upper" side of the element. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, other elements described as "below" or "beneath" elements would then become oriented "above" the other elements. Thus, the exemplary terms "under" or "beneath" can encompass both an orientation of above and below.
As used herein, "about" or "substantially" includes the stated value and the average value within an acceptable range of deviation of the specified value as determined by one of ordinary skill in the art, taking into account the measurement in question and the specified amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Further, as used herein, "about" or "substantially" may be selected based on optical properties, etch properties, or other properties, with a more acceptable range of deviation or standard deviation, and not all properties may be applied with one standard deviation.
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Fig. 1-13 are partial cross-sectional views of displays according to some embodiments of the invention.
Referring to fig. 1, in the present embodiment, a display 100 may include an array substrate 110, an optical structure 120, and a light emitting device 130. The array substrate 110 may include a substrate 112 and a driving element 114 disposed on the substrate 112. The substrate 112 may be made of glass, quartz, organic polymer, or other suitable materials, and the driving element 114 may include a source/drain electrode 1142, a gate electrode 1144, and a semiconductor layer 1146, wherein the source/drain electrodes 1142 may be respectively formed on two sides of the gate electrode 1144 and electrically connected to the underlying semiconductor layer 1146.
It should be noted that the driving element 114 is illustrated by using a top gate thin film transistor (top gate TFT) as an example, but the present invention is not limited thereto. According to other embodiments, the driving element 114 may also be a bottom gate thin film transistor (bottom gate TFT) or other suitable thin film transistors.
In the present embodiment, the optical structure 120 may be embedded in the array substrate 110, and the optical structure 120 and the array substrate 110 may form the first accommodating space O1. In addition, the light emitting element 130 may be disposed in the first receiving space O1 and electrically connected to the driving element 114, wherein the light emitting surface 130a of the light emitting element 130 may face the optical structure 120, in other words, the light emitting element 130 may be disposed in the first receiving space O1 with the electrode facing upward.
The display 100 of the present embodiment is designed with a receiving space (the first receiving space O1) for carrying the light emitting device 130, so that the alignment accuracy of the light emitting device 130 can be effectively improved, and better reliability and display quality can be obtained. Furthermore, the design of the accommodating space (the first accommodating space O1) can shorten the distance between the substrate (the array substrate 110) and the light emitting element 130, so as to reduce the probability of alignment deviation or ejection generated when the light emitting element 130 is placed, thereby effectively improving the alignment accuracy of the light emitting element 130.
In some embodiments, since the light emitting element 130 may be limited in the first accommodating space O1, an adhesive material for adhering the light emitting element 130 may be omitted, and a subsequent encapsulant may be directly used for fixing, so as to further reduce the material cost, but the invention is not limited thereto.
In some embodiments, the light emitting element 130 is, for example, a micro-LED (micro-LED), so the light emitting element 130 may be an element transferred by a laser (laser) method (for example, a bulk transfer), and since the levelness of the transfer substrate (not shown) may be strictly required by the laser transfer, the levelness requirement of the transfer substrate may be reduced by the design of the accommodating space (the first accommodating space O1), but the invention is not limited thereto.
In some embodiments, the optical structure 120 may be used to enhance the optical performance of the display 100. Further, the light emitted from the light emitting device 130 can be designed to pass through materials with different refractive indexes, so as to increase the light output and improve the optical performance. On the other hand, the light emitted by the light emitting element 130 can be reduced from passing through the material layer in the array substrate 110 under the aforementioned design, so as to reduce the excessive light loss.
In some embodiments, the top surface 120a of the optical structure 120 may have the recess 122, in other words, a gap may be formed between the optical structure 120 and the light emitting element 130 to form a concave surface, so that the light emitted by the light emitting element 130 may sequentially pass through the recess 122 with a smaller refractive index and the optical structure 120 with a larger refractive index, that is, the refractive indexes may be arranged from low to high in a direction from the light emitting surface 130a to the substrate 112, but the invention is not limited thereto.
In some embodiments, the size of the recess 122 may be larger than the size of the light emitting element 130, in other words, the arc of the recess of the top surface 120a of the optical structure 120 has a smaller curvature, i.e., a larger curvature radius, so that the recess 122 may cover the light emitting element 130, so that the light emitted by the light emitting element 130 can be emitted along the arc surface, thereby increasing the tolerance, but the invention is not limited thereto.
It should be noted that, in the following embodiments, the element numbers and part of the contents of the above embodiments are used, wherein the same or similar element numbers are used to indicate the same or similar elements, and the descriptions of the same technical contents are omitted, and the description of the omitted parts can refer to the foregoing embodiments, and the descriptions of the following embodiments are not repeated.
Referring to fig. 2, compared to the display 100, the recess 222 of the top surface 220a of the optical structure 220 of the display 200 of the present embodiment may have different curvature radii to meet different optical designs required by the display. Further, in the present embodiment, the curvature of the recess 222 may be greater than the curvature of the recess 122, that is, the curvature radius of the recess 222 may be smaller than the curvature radius of the recess 122, and the size of the recess 222 may be smaller than the size of the light emitting element 130, so that the recess 222 may not cover the light emitting element 130, but the invention is not limited thereto.
In some embodiments, the orthographic projection of the light emitting device 130 on the substrate 112 may completely overlap with the recess 222, but the invention is not limited thereto.
Referring to fig. 3, compared to the display 100, the top surface 320a of the optical structure 320 of the display 300 of the embodiment may be a convex surface, and the light emitting device 130 is in direct contact with the vertex of the convex surface, so as to further enhance the light receiving capability by using the geometric structure, and further enhance the optical performance more effectively, but the invention is not limited thereto.
In some embodiments, the optical structure 320 and the light emitting element 130 may have a partial gap therebetween, but the invention is not limited thereto.
Referring to fig. 4, compared to the display 100, the top surface 420a of the optical structure 420 of the display 400 of the embodiment may be a plane. Further, the optical structure 120 in fig. 1 may be regarded as a first refractive layer in the present embodiment, and a material may be imprinted in the recess 122 of the top surface 120a of the optical structure 120 to form the second refractive layer 424 of the present embodiment, in other words, the second refractive layer 424 may be located between the light emitting element 130 and the first refractive layer (e.g., the optical structure 120), and the second refractive layer 424 may be covered by the first refractive layer (e.g., the optical structure 120), and the first refractive layer (e.g., the optical structure 120) and the second refractive layer 424 may have complementary and concave-convex shapes.
In this embodiment, the optical structure 420 may include at least two refractive layers, such as a first refractive layer (e.g., the optical structure 120) and a second refractive layer 424, wherein a top surface of the first refractive layer (e.g., the optical structure 120) and a top surface of the second refractive layer 424 may form a continuous plane.
In some embodiments, each layer of the optical structure 420 may have a different refractive index, and each layer of the optical structure 420 may be arranged from low to high in a direction from the light emitting surface 130a toward the substrate 112. For example, the first refractive layer (e.g., the optical structure 120) and the second refractive layer 424 may have different refractive indexes, and the refractive indexes of the first refractive layer (e.g., the optical structure 120) and the second refractive layer 424 are arranged from low to high in the direction from the light-emitting surface 130a to the substrate 112, in other words, the refractive index of the second refractive layer 424 may be smaller than the refractive index of the first refractive layer (e.g., the optical structure 120), but the invention is not limited thereto.
In some embodiments, the material of the first refractive layer (e.g., optical structure 120) is, for example, an imprint photoresist material, such as silicon nitride (SiN)x) Silicon oxide (SiO)x) Or niobium oxide (Nb)2O5) The material of the second refraction layer 424 is, for example, an imprint photoresist material, such as silicon nitride (SiN)x) Silicon oxide (SiO)x) Or niobium oxide (Nb)2O5) However, the present invention is not limited thereto.
Referring to fig. 5, compared to the display 200, the top surface 520a of the optical structure 520 of the display 500 of the embodiment may be a plane. Further, the optical structure 220 in fig. 2 may be regarded as a first refractive layer in the embodiment, and a material may be imprinted in the recess 222 of the top surface 220a of the optical structure 220 to form the second refractive layer 524, in other words, the optical structure 520 may include the first refractive layer (e.g., the optical structure 220) and the second refractive layer 524, wherein a top surface of the first refractive layer (e.g., the optical structure 220) and a top surface of the second refractive layer 524 may form a continuous plane, and shapes of the first refractive layer (e.g., the optical structure 220) and the second refractive layer 524 may be complementary and concave-convex matched, but the invention is not limited thereto.
The configuration, refractive index relationship and material between the first refractive layer (e.g., the optical structure 220) and the second refractive layer 524 may be similar to the configuration, refractive index relationship and material between the first refractive layer (e.g., the optical structure 120) and the second refractive layer 424, which will not be described herein again.
Referring to fig. 6, compared to the display 300, the top surface 620a of the optical structure 620 of the display 600 of the present embodiment may be a plane. Furthermore, the optical structure 320 in fig. 3 can be regarded as a first refractive layer in the embodiment, and the optical structure 620 can further include a second refractive layer 624, wherein the shapes of the first refractive layer (e.g., the optical structure 320) and the second refractive layer 624 can be complementary and concave-convex matched, but the invention is not limited thereto.
The configuration and refractive index relationship between the first refractive layer (e.g., the optical structure 320) and the second refractive layer 624 may be similar to those between the first refractive layer (e.g., the optical structure 120) and the second refractive layer 424, which will not be described herein again.
Referring to fig. 7, compared to the display 400, the optical structure 720 of the display 700 of the present embodiment may include a first refractive layer 722, a second refractive layer 724, and a third refractive layer 726, wherein the third refractive layer 726, the second refractive layer 724, and the first refractive layer 722 may be sequentially arranged from the light emitting surface 130a to the substrate 112, the first refractive layer 722 may cover the second refractive layer 724 and the third refractive layer 726, the second refractive layer 724 may cover the third refractive layer 726, and the first refractive layer 722, the second refractive layer 724, and the third refractive layer 726 may have complementary and concave-convex shapes, so that the light collection effect and the light output amount increase can be achieved by the design of the multi-layer arc-shaped refractive layer, but the invention is not limited thereto.
In some embodiments, the refractive index of the third refractive layer 726 is smaller than that of the second refractive layer 724, and the refractive index of the second refractive layer 724 is smaller than that of the first refractive layer 722, but the invention is not limited thereto.
Referring to fig. 8, compared to the display 400, the first refractive layer 822 and the second refractive layer 824 of the optical structure 820 of the display 800 of the embodiment may have different shape designs to form a prism structure, so as to adjust the brightness difference of the display 800 at different viewing angles. Further, the optical structure 820 may include a first refractive layer 822 and a second refractive layer 824, wherein a boundary between the first refractive layer 822 and the second refractive layer 824 is formed by alternately connecting a plurality of first oblique sides 10 and a plurality of second oblique sides 20, and the first oblique sides 10 and the adjacent second oblique sides 20 may form a triangular cone, but the invention is not limited thereto.
In the present embodiment, the first oblique side 10 may have a different length from the second oblique side 20, for example, as shown in fig. 8, the length of the first oblique side 10 may be greater than the length of the second oblique side 20, and the light of the light emitting element 130 may pass through the shorter second oblique side 20, as shown by the arrow in fig. 8. For example, in a vehicle system, it is often necessary to configure a display having a specific viewing angle corresponding to different positions, so that the display 800 can form a large-angle light emission with a specific viewing angle by adjusting the length difference between the first oblique side 10 and the second oblique side 20 and selecting the light emission edge of the prism structure, so as to perform viewing angle compensation on viewers at different positions, thereby effectively covering the viewing angle range of the viewers at different positions, but the invention is not limited thereto.
In addition, each layer of the optical structure 820 may have a different refractive index, and each layer of the optical structure 820 may be arranged from low to high from the light emitting surface 130a toward the substrate 112. For example, the first refractive layer (e.g., the optical structure 822) and the second refractive layer 824 may have different refractive indexes, and the refractive indexes of the first refractive layer (e.g., the optical structure 822) and the second refractive layer 824 are arranged from low to high in the direction from the light-emitting surface 130a to the substrate 112, in other words, the refractive index of the second refractive layer 824 may be smaller than the refractive index of the first refractive layer (e.g., the optical structure 822), but the invention is not limited thereto.
Referring to fig. 9, compared to the display 800, the first refractive layer 922 and the second refractive layer 924 of the optical structure 920 of the display 900 of the embodiment may have different refractive index designs. In this embodiment, the refractive index of the first refractive layer 922 may be smaller than that of the second refractive layer 924, in other words, the refractive indexes may be arranged from high to low in the direction from the light emitting surface 130a to the substrate 112. Further, in the present embodiment, the light of the light emitting element 130 can pass through the longer first oblique side 10, as shown by the arrow in fig. 9.
Accordingly, the refractive index arrangement of the optical structure 920 of the display 900 in fig. 9 and the refractive index arrangement of the optical structure 820 of the display 800 in fig. 8 in the direction from the light-emitting surface 130a to the substrate 112 are opposite, and the light of the light-emitting element 130 can be selected to pass through different light-emitting edges of the prism structure (the light of the light-emitting element 130 of the display 900 in fig. 9 passes through the longer first oblique edge 10, and the light of the light-emitting element 130 of the display 800 in fig. 8 passes through the shorter second oblique edge 20).
Referring to fig. 10, compared to the display 900, the display 1000 of the present embodiment may have multiple sets of optical structures to form light emission from multiple specific viewing angles. Further, the plurality of sets of optical structures may include an optical structure 920 (a first optical structure) and an optical structure 1020 (a second optical structure) as shown in fig. 9, wherein the optical structure 920 (the first optical structure) and the refractive index optical structure 1020 (the second optical structure) may be arranged from high to low along the light emitting surface 130a toward the substrate 112, and the first viewing angle and the second viewing angle are formed by adjusting a light emitting inclination angle θ 1 of a second oblique side 20 of the optical structure 920 (an included angle between an extension line of the second oblique side 20 and the surface of the substrate 112), a light emitting inclination angle θ 2 of a second oblique side 201 of the optical structure 1020 (an included angle between an extension line of the second oblique side 201 and the surface of the substrate 112), a ratio between the second oblique side 20 and the first oblique side 10 of the optical structure 920, and a ratio between the second oblique side 201 and the first oblique side 101 of the optical structure 1020. For example, in a vehicular system, when a long curved display is used, the viewing angle direction needs to be controlled to the driver position, and the optical structure with a larger viewing angle needs to be arranged at a position farther from the driver. In the display 1000 of this embodiment, by adjusting the light-emitting inclination angle θ 1 of the second oblique side 20 of the optical structure 920 to be greater than the light-emitting inclination angle θ 2 of the second oblique side 201 of the optical structure 1020 and the ratio of the second oblique side 20 to the first oblique side 10 of the optical structure 920 to be less than the ratio of the second oblique side 201 to the first oblique side 101 of the optical structure 1020, the optical structure 920 may form a first viewing angle with a smaller light-emitting inclination angle and may be disposed at a position closer to the driver D, and the optical structure 1020 may form a second viewing angle with a larger light-emitting inclination angle and may be disposed at a position farther from the driver D.
Referring to fig. 11, compared to the display 1000, the optical structures 920 and 1120 of the display 1100 of the present embodiment may have different viewing angle designs. In this embodiment, the optical structures 920 and 1120 may be in a mirror image design, for example, the ratio of the second oblique side 20 to the first oblique side 10 of the optical structure 920 may be the same as the ratio of the second oblique side 202 to the first oblique side 102 of the optical structure 1120 but in a mirror image configuration, and the second oblique side 202 of the optical structure 1120 may have the same light-emitting inclination angle θ 1 as the second oblique side 20 of the optical structure 920, so that the optical structure 920 may form a first viewing angle that the light-emitting direction faces the viewer at the right position of the drawing plane, and the optical structure 1120 may form a second viewing angle that the light-emitting direction faces the viewer at the left position of the drawing plane, but the invention is not limited thereto.
It should be noted that although the display 1000 and the display 1100 form only two different viewing angles, the present invention is not limited to the number of viewing angles that can be displayed in the display, and can be adjusted according to the requirements of the actual design.
Referring to fig. 12, compared to the display 900, the first oblique side 103 and the second oblique side 203 of the display 1200 of the embodiment may have the same length to achieve narrow-angle light emission, concentrate the light to the middle area, and have a peep-proof function of limiting the viewing angle, but the invention is not limited thereto.
It should be noted that the present invention is not limited to the number of layers and materials of the refraction layer in the foregoing embodiments, and may be determined according to the actual design requirement.
Referring to fig. 13, in the present embodiment, the display 1300 may include an array substrate 110, a second accommodating space O2 and a light emitting element 130. The array substrate 110 may include a substrate 112 and a driving element 114, and the driving element 114 may be disposed on the substrate 112. The second accommodating space O2 may penetrate from the top surface of the array substrate 110 to the base 112, wherein a bottom OB size of the second accommodating space O2 is larger than a top OT size of the second accommodating space O2. The light emitting element 130 is disposed in the second accommodating space O2 and electrically connected to the driving element 130, wherein the light emitting surface 130a of the light emitting element 130 faces the substrate 112, and the size of the top OT of the second accommodating space O2 is larger than that of the light emitting element 130.
Therefore, the display 1300 of the present embodiment is designed with the accommodating space (the second accommodating space O2) for carrying the light emitting element 130, so that the alignment accuracy of the light emitting element 130 can be effectively improved, and better reliability and display quality can be obtained. Furthermore, the design of the accommodating space (the second accommodating space O2) can shorten the distance between the substrate (the array substrate 110) and the light emitting device 130, so as to reduce the alignment deviation generated when the light emitting device 130 is placed, and further effectively improve the alignment accuracy of the light emitting device 130. In addition, since the bottom OB size of the second accommodating space O2 is greater than the top OT size of the second accommodating space O2, and the top OT size of the second accommodating space O2 is greater than the size of the light emitting element 130, the stress of corners can be effectively buffered, and the reliability of the display 1300 can be further improved.
In some embodiments, the light emitting element 130 may have a distance from the sidewall OS of the second accommodating space O2, but the invention is not limited thereto.
In some embodiments, the second accommodating space O2 may be an undercut structure, but the invention is not limited thereto.
In some embodiments, the substrate 112 is a flexible substrate, so that the second accommodating space O2 of the present embodiment can achieve a better buffering effect under the condition of multiple flexing, but the invention is not limited thereto.
In some embodiments, the array substrate 110 may further include a buffer layer 115, a Black Matrix (BM) layer 116, an interlayer insulating layer 1151, a dielectric layer 1152 for electrically isolating the gate electrode 1144 from other lines, a passivation layer 1171, 1172, and a line layer 118, wherein the buffer layer 115, the interlayer insulating layer 1151, the dielectric layer 1152, the Black Matrix layer 116, the passivation layer 1171, 1172, and the line layer 118 may be made of any suitable material and may be configured in any suitable manner, for example, as shown in any one of fig. 1 to 13, but the invention is not limited thereto. In addition, the array substrate 110 may further include any suitable film layer not shown.
In summary, the display of the present invention is designed with an accommodating space for carrying the light emitting device, such as an accommodating space formed by the array substrate and the optical structure, or an accommodating space penetrating from the top surface of the array substrate to the top surface of the base, so that the alignment accuracy of the light emitting device can be effectively improved, and the display has better reliability and display quality.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (16)
1. A display, comprising:
the array substrate comprises a base and a driving element, wherein the driving element is arranged on the base;
the optical structure is embedded in the array substrate, and the optical structure and the array substrate form a first accommodating space; and
and the light-emitting element is arranged in the first accommodating space and electrically connected with the driving element, and the light-emitting surface of the light-emitting element faces the optical structure.
2. The display of claim 1, wherein the light emitting elements are elements transferred by laser means.
3. The display of claim 1, wherein the top surface of the optical structure has a recess having a dimension greater than a dimension of the light emitting element.
4. The display of claim 1, wherein the top surface of the optical structure has a depression having a size smaller than a size of the light emitting element.
5. The display of claim 1, wherein the top surface of the optical structure is convex and the light-emitting elements are in direct contact with the apex of the convex surface.
6. The display of claim 1, wherein the top surface of the optical structure is planar.
7. The display of claim 6, wherein the optical structure comprises at least two refractive layers, each of the at least two refractive layers has a different refractive index, and the refractive indices of the at least two refractive layers are arranged from low to high or from high to low in a direction from the light-emitting surface toward the substrate.
8. A display, comprising:
the array substrate comprises a substrate and at least one driving element, wherein the at least one driving element is arranged on the substrate;
the optical structure is embedded in the array substrate and forms a first accommodating space with the array substrate, wherein the optical structure is provided with a first refraction layer and a second refraction layer, the shapes of the first refraction layer and the second refraction layer are complementary and are matched in a concave-convex mode, and the refractive index of the first refraction layer is different from that of the second refraction layer; and
and the at least one light-emitting element is arranged in the first accommodating space and is electrically connected with the at least one driving element, wherein the light-emitting surface of the light-emitting element faces the optical structure.
9. The display of claim 8, wherein the boundary between the first and second refraction layers is formed by alternately connecting a plurality of first oblique sides and a plurality of second oblique sides, and the first oblique sides and the adjacent second oblique sides form a triangular pyramid.
10. The display of claim 9, wherein the first oblique side and the second oblique side have different lengths.
11. The display of claim 9, wherein the first oblique side and the second oblique side have the same length.
12. The display of claim 9, wherein the at least one optical structure comprises a first optical structure and a second optical structure, and the second oblique side of the first optical structure has a light-exiting tilt angle different from the light-exiting tilt angle of the second oblique side of the second optical structure.
13. A display, comprising:
the array substrate comprises a base and a driving element, wherein the driving element is arranged on the base;
the second accommodating space penetrates from the top surface of the array substrate to the base, wherein the bottom size of the second accommodating space is larger than the top size of the second accommodating space; and
and the light-emitting element is arranged in the second accommodating space and electrically connected with the driving element, wherein the light-emitting surface of the light-emitting element faces the substrate, and the top size of the second accommodating space is larger than that of the light-emitting element.
14. The display of claim 13, wherein the light emitting element is spaced apart from a sidewall of the second receiving space.
15. The display of claim 13, wherein the second receiving space is an undercut structure.
16. The display of claim 13, wherein the substrate is a flexible substrate.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063035056P | 2020-06-05 | 2020-06-05 | |
| US63/035,056 | 2020-06-05 | ||
| TW109145444A TWI765486B (en) | 2020-06-05 | 2020-12-22 | Display device |
| TW109145444 | 2020-12-22 |
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| CN112993128A true CN112993128A (en) | 2021-06-18 |
| CN112993128B CN112993128B (en) | 2023-06-23 |
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| TWI808743B (en) * | 2022-04-15 | 2023-07-11 | 大陸商蘇州璨鴻光電有限公司 | Display panel |
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