Display device

Abstract

The invention provides a display device. The display device comprises a display panel, a heat dissipation piece and a light adjusting structure. The display panel is provided with a light-emitting side and a non-light-emitting side and comprises a plurality of light-emitting units and a plurality of light-collecting units, and each light-emitting unit corresponds to one light-collecting unit. The heat dissipation piece is arranged on the non-light-emitting side of the display panel. The light adjusting structure is arranged on the light emitting side of the display panel and comprises a plurality of light control units, and each of the light control units corresponds to at least two of the light emitting units.

Description

Technical Field

[0001] The present disclosure relates to a display device. Background Art

[0002] With the booming electronics industry, a wide variety of display device applications have emerged. However, different applications present different challenges for display devices. Consequently, there is a need for continuous improvement in all types of display devices. Summary of the Invention

[0003] The present disclosure relates to a display device comprising a display panel, a heat sink, and a light adjustment structure. The display panel has a light-emitting side and a non-light-emitting side, and includes a plurality of light-emitting units and a plurality of light-collecting units, wherein each of the plurality of light-emitting units corresponds to one of the plurality of light-collecting units. The heat sink is disposed on the non-light-emitting side of the display panel. The light adjustment structure is disposed on the light-emitting side of the display panel and includes a plurality of light control units, wherein each of the plurality of light control units corresponds to at least two of the plurality of light-emitting units.

[0004] According to the display device of some embodiments of the present disclosure, the heat generated by the display panel can be dissipated by a heat sink located on the non-light-emitting side of the display panel, thereby helping to alleviate or avoid problems such as malfunctions or damage caused by overheating. The display panel can be controlled to adjust the display brightness or adjust the displayed image in response to the external environment to provide a good display effect. In addition, the light-emitting unit of the display panel and the light-collecting unit can be arranged corresponding to the light adjustment structure, so that the display panel can be used to achieve a stereoscopic image or a multiple depth of field display effect. In some embodiments, the image displayed by the display panel can also be adjusted according to the objects in the environment, thereby providing a display effect that meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 A schematic diagram of a display device according to an embodiment of the present disclosure;

[0006] Figure 2 A schematic diagram of a light collecting unit according to an embodiment of the present disclosure;

[0007] Figure 3 is a schematic diagram illustrating the disposition relationship among the light-emitting unit, the light-collecting unit, and the light-adjusting structure in a display device according to some embodiments of the present disclosure;

[0008] Figure 4 is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0009] Figure 5 is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0010] Figure 6is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0011] Figure 7 A schematic diagram of an application of the display device disclosed herein;

[0012] Figure 8 is a block diagram of a display device according to an embodiment of the present disclosure;

[0013] Figure 9 is a block diagram of a display device according to an embodiment of the present disclosure;

[0014] Figure 10 FIG. 1 is a block diagram of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0015] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0016] The use of ordinal numbers such as "first" and "second" in the specification and claims to modify an element does not, by itself, imply or indicate any prior ordinal number of the element(s), nor does it indicate the order of one element relative to another, or the order of manufacturing methods. Such ordinal numbers are used solely to clearly distinguish one element from another with the same name. The claims and the specification may not use the same terminology; thus, the first element in the specification may be the second element in the claim.

[0017] Throughout this disclosure and the claims that follow, certain words will be used to refer to specific components. It will be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following description and claims, words such as "comprises," "contains," and "has" are open-ended words and should therefore be interpreted as meaning "including but not limited to..." Therefore, when the terms "comprises," "contains," and / or "has" are used in the description of this disclosure, they specify the presence of corresponding features, regions, steps, operations, and / or components, but do not exclude the presence of one or more corresponding features, regions, steps, operations, and / or components.

[0018] In this disclosure, when a structure (or layer, component, or substrate) is located on / above another structure (or layer, component, or substrate), this may mean that the two structures are adjacent and directly connected, or that the two structures are adjacent but not directly connected. Indirect connection means that at least one intervening structure (or intervening layer, intervening component, intervening substrate, or intervening spacer) is present between the two structures. The bottom surface of one structure is adjacent to or directly connected to the top surface of the intervening structure, and the top surface of the other structure is adjacent to or directly connected to the bottom surface of the intervening structure. The intervening structure may be composed of a single or multiple layers of physical or non-physical structures, without limitation. In this disclosure, when a structure is disposed "on" another structure, this may mean that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure, i.e., at least one structure is interposed between the two structures.

[0019] It should be understood that when a component or film layer is referred to as being "connected to" another component or film layer, it can be directly connected to the other component or film layer, or there can be intervening components or film layers between the two. When a component is referred to as being "directly connected to" another component or film layer, there can be no intervening components or film layers between the two. In addition, when a component is referred to as being "coupled to another component (or variations thereof)", it can be directly connected to the other component, or indirectly connected (e.g., electrically connected) to the other component through one or more components.

[0020] The electrical connection or coupling described in this disclosure may refer to a direct connection or an indirect connection. In the case of a direct connection, the endpoints of the two circuit elements are directly connected or connected to each other by a conductor segment. In the case of an indirect connection, there is a switch, diode, capacitor, inductor, resistor, other suitable element, or a combination of the above elements between the endpoints of the two circuit elements, but it is not limited thereto.

[0021] In the present disclosure, the thickness, length and width can be measured using an optical microscope, and the thickness can be measured from a cross-sectional image in an electron microscope, but the present disclosure is not limited thereto. In addition, any two values or directions used for comparison may have a certain error. In addition, the terms "approximately", "substantially" or "roughly" mentioned in the present disclosure generally represent falling within 10% of a given value or range. In addition, the phrases "a given range is from a first value to a second value" and "a given range falls within the range from a first value to a second value" indicate that the given range includes the first value, the second value and other values therebetween.

[0022] In the present disclosure, the various embodiments described below may be mixed and matched without departing from the spirit and scope of the present disclosure. For example, some features of one embodiment may be combined with some features of another embodiment to form another embodiment.

[0023] The electronic device disclosed herein may, for example, include a display device, a sensing device, an antenna device, a touch device, a packaging device, a splicing device or other suitable electronic devices, but is not limited thereto. The display device disclosed herein may be any type of display device, such as a self-luminous display device, a non-self-luminous display device or a transparent display device. The self-luminous display device may include a light-emitting diode, a light conversion layer or other suitable materials, or a combination thereof, but is not limited thereto. The light-emitting diode may, for example, include an organic light emitting diode (OLED), a sub-millimeter light-emitting diode (mini LED), a micro light-emitting diode (micro LED) or a quantum dot light-emitting diode (quantum dot LED, which may include QLED, QDLED), but is not limited thereto. The light conversion layer may include a wavelength conversion material and / or a filter material, and the light conversion layer may, for example, include fluorescence, phosphor, quantum dot (QD), other suitable materials or a combination thereof, but is not limited thereto. The non-self-luminous display device may include a liquid crystal display device, but is not limited thereto. The sensing device may be, for example, a sensing device for detecting changes in capacitance, light, heat, or ultrasound, but is not limited thereto. The sensing device may include, for example, a biosensor, a touch sensor, a fingerprint sensor, other suitable sensors, or a combination of the aforementioned types of sensors. The antenna device may be, for example, a liquid crystal antenna or other types of antennas, but is not limited thereto. The splicing device may include, for example, a spliced display device or a spliced antenna device, but is not limited thereto. In addition, the shape of the electronic device may be, for example, rectangular, circular, polygonal, a shape with curved edges, a curved surface, or other suitable shapes. The electronic device may be a bendable or flexible electronic device. The electronic device may have peripheral systems such as a drive system, a control system, a light source system, a shelf system, etc. The electronic device may include an electronic unit, wherein the electronic unit may include passive and active components, such as capacitors, resistors, inductors, diodes, transistors, sensors, etc. It should be noted that the electronic device disclosed herein may be various combinations of the aforementioned devices, but is not limited thereto. The electronic device disclosed herein takes a display device as an example, but is not limited thereto. Figure 1 Schematic diagram of a display device according to an embodiment of the present disclosure. Figure 1In the embodiment, the display device 100 basically includes a display panel 110, a heat sink 120, and a light adjustment structure 130. The display panel 110 has a light-emitting side 110A and a non-light-emitting side 110B, wherein the light-emitting side 110A and the non-light-emitting side 110B may be opposite to each other. The heat sink 120 is disposed on the non-light-emitting side 110B of the display panel 110, and the light adjustment structure 130 is disposed on the light-emitting side 110A of the display panel 110. In this way, the heat sink 120 and the light adjustment structure 130 are disposed on opposite sides of the display panel 110, and the display panel 110 is disposed between the heat sink 120 and the light adjustment structure 130, wherein the display panel 110 emits display light toward the light adjustment structure 130. The light adjustment structure 130 can be used to adjust the path of the display light of the display panel 110 to present a desired display image, and the heat sink 120 can be used to dissipate heat generated by the display panel 110 during operation to ensure the operating efficiency of the display panel 110.

[0024] The display panel 110 includes a plurality of light-emitting units 112 for emitting light to display an image, and a plurality of light-collecting units 114 for adjusting the light divergence angle. Each of the plurality of light-emitting units 112 corresponds to one of the plurality of light-collecting units 114. The light-emitting surface 112A of each light-emitting unit 112 is disposed toward one of the light-collecting units 114. This allows the light emitted by each light-emitting unit 112 to be primarily emitted toward the corresponding light-collecting unit 114. Each light-collecting unit 114 may include a lens, a meta lens, a condenser reflector, or the like, and each light-collecting unit 114 may reduce the divergence angle of the incident light. In other words, the light-collecting unit 114 adjusts the light emitted by the light-emitting unit 112 to be emitted in a more concentrated manner.

[0025] The plurality of light-emitting units 112 may be light-emitting diodes, such as micro light-emitting diodes, sub-millimeter light-emitting diodes, organic light-emitting diodes, or the like. The light-emitting diodes serving as the light-emitting units 112 may include a plurality of light-emitting diodes for emitting different colors. For example, the light-emitting diodes serving as the light-emitting units 112 may include red light-emitting diodes, green light-emitting diodes, and blue light-emitting diodes, but are not limited thereto. Light-emitting diodes of different colors may be realized by using different light-emitting chips or by using light-emitting chips in combination with different filter materials and / or wavelength conversion materials (such as quantum dots). In some embodiments, three light-emitting units 112 of different colors may constitute a light-emitting unit group G112. The light-collecting units 114 may also be arranged in groups corresponding to the layout of the light-emitting units 112, but are not limited thereto.

[0026] The light-regulating structure 130 includes a plurality of light control units 132, each corresponding to at least two of the plurality of light-emitting units 112. In some embodiments, each light control unit 132 may have a lens-like shape (including a hemispherical lens, a semi-cylindrical lens, etc.). In some embodiments, each light control unit 132 may be a metalens, a lenticular lens, or the like. Figure 1 For example, an individual light control unit 132 is lens-shaped, and the light-emitting surface 132A of the individual light control unit 132 has an arc-shaped profile in a cross-sectional view. In some embodiments, the light-emitting surface 132A of the individual light control unit 132 can be composed of multiple small planes with different inclination angles and orientations. When the projection of the individual component is viewed along the thickness direction Z, each light control unit 132 can overlap at least two of the multiple light-emitting units 112. For example, each light control unit 132 can overlap 2×2 or more (e.g., greater than 16) light-emitting units 112, but is not limited to this. Each light control unit 132 is used to control the light emission path so that the light emitted by the corresponding multiple light-emitting units 112 is emitted in a set direction, thereby achieving the desired display effect. For example, under the configuration of the light adjustment structure 130, the light emitted by these light-emitting units 112 can be focused at different focal positions to form corresponding images at different focal positions, which can be used to achieve an augmented reality display effect. In some embodiments, the display device 100 may be a head-up display device, but is not limited thereto.

[0027] In some embodiments, the display panel 110 further includes a first substrate 116A, a second substrate 116B, and a light-transmitting layer 118. The first substrate 116A and the second substrate 116B are arranged opposite to each other. A plurality of light-emitting units 112 are arranged on the first substrate 116A and located between the first substrate 116A and the second substrate 116B. A plurality of light-collecting units 114 are arranged on the second substrate 116B and located between the first substrate 116A and the second substrate 116B. The light-transmitting layer 118 is arranged between the plurality of light-emitting units 112 and the plurality of light-collecting units 114. The plurality of light-emitting units 112 can be located between the first substrate 116A and the light-transmitting layer 118, and the plurality of light-collecting units 114 can be located between the second substrate 116B and the light-transmitting layer 118.

[0028] The first substrate 116A is used to support the light emitting unit 112 . Figure 1Although not shown, the first substrate 116A may include a substrate body and a driving structure disposed on the substrate body. The driving structure may include power circuits and pixel circuits to provide the power and driving signals required by the light-emitting unit 112. The substrate body may be made of glass, quartz, an organic polymer, an opaque / reflective material (e.g., a conductive material, metal, wafer, ceramic, or other suitable materials), other suitable materials, a single layer of any of the above materials, or a stack of multiple layers of the above materials. In some embodiments, the first substrate 116A may be a circuit board, but is not limited thereto.

[0029] The second substrate 116B and the light-transmitting layer 118 at least allow light emitted by the plurality of light-emitting units 112 to pass through. To display images viewable by the human eye, the second substrate 116B and the light-transmitting layer 118 are at least transparent to visible light. For example, the material of the second substrate 116B may include glass, transparent plastic materials, or other materials that can serve as transparent substrates. The light-transmitting layer 118 is disposed around the light-collecting unit 114 and may include a vacuum layer, an air layer, or other transparent material layer. In some embodiments, the light-transmitting layer 118 may include a stack of multiple layers / materials, such as a combination of organic materials, photoresist materials, adhesive materials (optical adhesives, light-transmitting resins, etc.), low-refractive-index materials, etc. In some embodiments, the refractive index of the light-transmitting layer 118 may be less than the refractive index of the light-collecting unit 114. In some embodiments, the difference between the refractive index of the light-transmitting layer 118 and the refractive index of the light-collecting unit 114 may be greater than 0.5. In some embodiments, the refractive index of the light-transmitting layer 118 may be less than 1.4, but is not limited thereto. In some alternative embodiments, the light-transmitting layer 118 includes a plurality of light-transmitting areas, each of which may have the function of limiting the path of light. For example, the display device includes a plurality of light-blocking structures, which separate the light-transmitting layer 118 into a plurality of light-transmitting areas and only allow light within a specific luminous angle range to pass through. The light-blocking structure may, for example, be arranged between adjacent light-emitting units 112. This helps to concentrate the light emitted by the light-emitting unit 112 within a limited luminous angle range and / or reduce the cross talk of light between the light-emitting units 112. In other words, under the setting of the light-blocking structure, the light emitted by individual light-emitting units 112 can travel more concentratedly to one of the corresponding light-collecting units 114, which helps to enhance the concentration of light. In addition, in some embodiments, a component or film layer having a water-vapor barrier function may be further provided in the display device 100, wherein the water-vapor barrier component or film layer is, for example, formed by alternating stacks of silicon nitride (SiNx) and indium tin oxide (TIO). In some embodiments, the moisture-blocking component or film layer may be located between the light-transmitting layer 118 and the light-collecting unit 114 or on the light-collecting unit 114 .

[0030] exist Figure 1 In the embodiment, the light collecting unit 114 and the light adjustment structure 130 are separated by a desired gap G. The thickness of gap G is substantially equal to the focal length of the light control unit 132. This ensures that the light emitted by the display panel 110 does not change its shape after passing through the light control unit 132, and facilitates clear distinction of the light emitted by each light-emitting unit 112. For example, 0.8 times the focal length of the light control unit 132 can be less than or equal to the thickness of gap G, and the thickness of gap G can be less than or equal to 1.2 times the focal length of the light control unit 132. In some embodiments, the thickness of gap G is equal to the focal length of the light control unit 132. To establish a sufficient gap G, the display device 100 optionally includes a transparent layer 140. The transparent layer 140 is disposed between the display panel 110 and the light adjustment structure 130. The material of the transparent layer 140 includes glass, plastic, adhesive materials (optical adhesive, light-transmitting resin, etc.), other materials that are transparent to the wavelength range of light emitted by the light-emitting unit 112 (such as, but not limited to, the visible light range), or a combination thereof. The transparent layer can be, for example, a single layer or a multi-layer structure. In some embodiments, the thickness T140 of the transparent layer 140 can be greater than the thickness T116B of the second substrate 116B, but is not limited thereto. In some embodiments, the transparent layer 140 and the second substrate 116B can be made of the same material but be separate components. In some embodiments, if the second substrate 116B is thick enough to provide the gap G, the transparent layer 140 can be omitted. In this case, the light-modulating structure 130 can be disposed directly on the second substrate 116B.

[0031] The image displayed by the display panel 110 is composed of light provided by the light-emitting units 112. The multiple light-emitting units 112 disposed on the first substrate 116A typically generate heat when emitting light (operating). Excessive heat can cause the light-emitting units 112 to operate inefficiently or even damage the surrounding drive structures or circuits. The heat problem is even more pronounced when the light-emitting units 112 provide high brightness. Here, a heat sink 120 is disposed adjacent to the first substrate 116A to effectively dissipate the heat generated by the light-emitting units 112 on the first substrate 116A during operation. For example, the heat sink 120 is disposed on the back side of the first substrate 116A, i.e., on the non-light-emitting side 110B of the display panel 110. With the heat sink 120 in place, the heat generated by the light-emitting units 112 is more easily dissipated, allowing the light-emitting units 112 to operate at high brightness without being easily damaged. Therefore, the display device 100 can be used to provide a high-brightness display image while still maintaining an ideal service life.

[0032] In some embodiments, the heat sink 120 may include an active heat sink. An active heat sink is a component that can be controlled to provide and / or adjust heat dissipation. For example, an active heat sink can be turned on or off by control. In some embodiments, the active heat sink can also be further controlled to provide different degrees of heat dissipation. An active heat sink may include an active element, such as a combination of a fan, a motor, and a heat pipe. In some embodiments, the heat sink 120 may include a passive heat sink, such as a heat sink fin, a heat sink block, a combination thereof, or the like. In some embodiments, the heat sink 120 may be directly attached to the back surface of the display panel 110 (i.e., the side of the first substrate 116A opposite the light-emitting unit 112). For example, the display device 100 may further include an adhesive layer, which is disposed between the back surface (non-light-emitting side) of the display panel 110 and the heat sink 120. The design of the adhesive layer allows the heat sink to be directly attached to the back surface of the display panel 110, thereby enhancing the heat dissipation effect. In some embodiments, the heat sink 120 may include an active heat sink, a passive heat sink, or a combination of the above heat sinks.

[0033] exist Figure 1 In the embodiment, the light collecting unit 114 of the display panel 110 is represented by a convex lens-shaped cross-sectional structure facing the light emitting unit 112, that is, the center portion (for example, the center portion of the arc-shaped outline) of each light collecting unit 114 is closer to the corresponding light emitting unit 112, and the edge portion (for example, the edge portion of the arc-shaped outline) is farther away from the corresponding light emitting unit 112, but the present disclosure is not limited to this. In some embodiments, the light collecting unit 114 of the display panel 110 may have a convex lens-shaped cross-sectional structure facing away from the light emitting unit 112, that is, the center portion (for example, the center portion of the arc-shaped outline) of each light collecting unit 114 is farther away from the corresponding light emitting unit 112, and the edge portion (for example, the edge portion of the arc-shaped outline) is closer to the corresponding light emitting unit 112. In some embodiments, the light collecting unit 114 of the display panel 110 may have a multi-columnar structure (for example, a super lens). In some embodiments, the light collecting unit 114 of the display panel 110 may have a structure such as Figure 2 The optical cup structure CR shown can also be understood as a condenser reflector structure. The optical cup structure CR has an inclined cup wall CRA, and the light entrance opening CRB of the optical cup structure CR is smaller than the light exit opening CRC.

[0034] Figure 3 Schematic diagram of the arrangement relationship of the light emitting unit, the light collecting unit and the light adjustment structure in the display device according to some embodiments of the present disclosure. Figure 3 As shown, in some embodiments of the present disclosure, the display panel may include N light emitting units 112 and M light collecting units 114, wherein N and M are positive integers, and N may be smaller than M. Figure 3 In the figure, a rectangular pattern is used, and the individual light collecting units 114 are Figure 3 In some embodiments, some of the M light collecting units 114 are not arranged corresponding to the light emitting units 112, so Figure 3 In some circular patterns, there are no rectangular patterns. In some embodiments, M and N may also be equal.

[0035] In some embodiments, three light emitting units 112 may constitute a light emitting unit group G112, and the light emitting unit group G112 may be arranged in an array in the first direction X and the second direction Y. The light collecting units 114 may correspond to the arrangement of the light emitting units 112, and three light collecting unit groups G114 may be formed in a group, and the light collecting unit groups G114 may be arranged in an array in the first direction X and the second direction Y. The number of light collecting unit groups G114 is greater than the number of light emitting unit groups G112. Some light collecting unit groups G114 are not arranged corresponding to the light emitting units 112, such as Figure 3 The group is marked with G114, but the present disclosure is not limited to this. Each of the N light-emitting units 112 can be correspondingly arranged in one of the M light-collecting units 114. The light emitted by the light-emitting unit 112 in the main light-emitting angle range can be guided by the corresponding light-collecting unit 114 to the required angle α, where 0°≦α<90°. For example, the thickness direction Z represents α=0°. In some embodiments, each light-emitting unit 112 can be arranged to align with the center of the corresponding light-collecting unit 114. In this way, the light emitted by the light-emitting unit 112 in the main light-emitting angle range can pass through the light-collecting unit 114 and is not easily bent, thereby achieving an ideal light-collecting effect (for example, collecting light along the thickness direction Z and emitting along the thickness direction Z). In some embodiments, each light-emitting unit 112 can be arranged to be offset by a specific distance relative to the center of the corresponding light-collecting unit 114. In this way, light emitted by the light-emitting unit 112 within the main light emission angle range can be guided to an angle α by the corresponding light-collecting unit 114. In this case, 0°<α<90° (for example, light is collected in a direction different from the original emission direction and emitted in this other direction, where the angle between this other direction and the thickness direction Z is α). Therefore, the corresponding relationship between the light-emitting unit 112 and the light-collecting unit 114 can be adjusted according to the desired lighting effect (for example, the light collection and light emission direction of the display panel 110).

[0036] exist Figure 3 In the embodiment, the light adjustment structure 130 includes a plurality of light control units 132. Each light control unit 132 may have a semi-cylindrical structure, for example, Figure 1 The semicircular cross section shown in FIG. 1 is used to control the direction of light traveling of the light emitting unit 112. Figure 3In the presented viewing angle, each light control unit 132 has an elongated shape and overlaps at least two of the plurality of light-emitting units 112. In some embodiments, each light control unit 132 may overlap at least 2×2 (4) or more than 16 light-emitting units 112. In some embodiments, the center line A132 of each light control unit 132 extends in a direction that intersects both the first direction X and the second direction Y.

[0037] Figure 4 FIG1 is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. Figure 4 The display device 200 is similar to Figure 1 The display device 100 is shown in FIG2 , and the same element symbols in the two embodiments are used to indicate the same or equivalently replaceable components. Therefore, the descriptions and illustrations of the components indicated by these same element symbols in these embodiments can be applied and referenced to each other. The display device 200 includes a display panel 210, a heat sink 120, a light adjustment structure 130, a transparent layer 140 and a light transmission layer 250, wherein the display panel 210 includes a plurality of light-emitting units 112, a plurality of light-collecting units 114, a first substrate 116A and a light transmission layer 118. The difference between the display device 200 and the display device 100 mainly lies in the structure of the display panel 210 of the display device 200 and the additional light transmission layer 250 of the display device 200. In the display device 200, the arrangement and function of the heat sink 120 and the light adjustment structure 130 can be referred to. Figure 1 In addition, the configuration relationship between the light adjustment structure 130, the light collecting unit 114 and the light emitting unit 112 can be referred to in Figure 3 The relevant instructions will not be repeated here.

[0038] In this embodiment, the display panel 210 includes a plurality of light-emitting units 112, a plurality of light-collecting units 114, a first substrate 116A, and a light-transmitting layer 118. The light-emitting units 112 are disposed on the first substrate 116A, the light-transmitting layer 118 is disposed on the first substrate 116A and around the light-emitting units 112, and the light-collecting units 114 are disposed on the light-transmitting layer 118. In some embodiments, the light-emitting units 112 and the light-collecting units 114 are disposed on opposite sides of the light-transmitting layer 118, and the light-collecting units 114 protrude from the light-transmitting layer 118 rather than being buried therein. In this embodiment, each light-collecting unit 114 may have a convex lens-like cross-sectional structure facing away from the light-emitting unit 112. In other words, the light-emitting surface of each light-collecting unit 114 is farther away from the corresponding light-emitting unit 112 at its center (e.g., at the center of the arcuate profile) and closer to the corresponding light-emitting unit 112 at its edge (e.g., at the edge of the arcuate profile). However, the present disclosure is not limited to this.

[0039] The light-transmitting layer 250 is disposed between the light-emitting side 210A of the display panel 210 and the transparent layer 140. The light-transmitting layer 250 and the transparent layer 140 are disposed between the light-collecting unit 114 and the light-adjusting structure 130. The light-transmitting layer 250 can be disposed around the light-collecting unit 114, and the light-collecting unit 114 of the display panel 110 can be buried in the light-transmitting layer 250, and the transparent layer 140 is disposed on the light-transmitting layer 250. The material of the light-transmitting layer 250 can be the same as that of the light-transmitting layer 118. For example, the material of the light-transmitting layer 250 and the light-transmitting layer 118 can include a stack of multiple layers / multiple materials, such as a combination of organic materials, photoresist materials, adhesive materials (optical adhesives, light-transmitting resins, etc.), low-refractive-index materials, etc. In some embodiments, the refractive index of the low-refractive-index material can be less than 1.4, but is not limited thereto.

[0040] Figure 5 FIG1 is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. Figure 5 The display device 300 is similar to Figure 1 The display device 100 of the present invention is shown in FIG. 1 , and the same reference numerals in the two embodiments indicate the same or equivalently replaceable components. Therefore, the descriptions and illustrations of the components indicated by the same reference numerals in these embodiments are applicable to each other. The display device 300 includes a display panel 110, a heat sink 120, a light adjustment structure 130, a transparent layer 140, and a temperature sensor 360. Specifically, the display device 300 can be regarded as an embodiment of the display device 100 with the addition of the temperature sensor 360. Therefore, the relevant descriptions of the display device 100 are applicable to the display device 300.

[0041] The temperature sensor 360 is disposed on the first substrate 116A of the display panel 110 and is located between the first substrate 116A and the light-transmitting layer 118. In some embodiments, Figure 5 Although not drawn, the first substrate 116A may include a substrate body and a driving structure disposed on the substrate body. The temperature sensor 360 may be integrated into the driving structure. In some embodiments, the temperature sensor 360 may be composed of electronic components such as thin film transistors. The temperature sensor 360 can sense the temperature of the display panel. For example, the temperature sensor 360 can be disposed near the light-emitting unit 112 to sense temperature changes caused by the light-emitting unit 112. In some embodiments, the number and position of the temperature sensors 360 can be set according to different needs. In other words, the number of temperature sensors 360 can be singular or plural, and the setting position of the temperature sensor 360 can be near the center or located on the periphery. In addition, Figure 5 The temperature sensor 360 can also be set in Figure 4 In the display device 200, real-time and on-site temperature sensing is achieved.

[0042] Figure 6 FIG1 is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. Figure 6 The display device 400 is similar to Figure 1 The display device 100 of the present invention is shown in FIG4 , and the same element symbols in the two embodiments are used to indicate the same or equivalently replaceable components. Therefore, the descriptions and illustrations of the components indicated by these same element symbols in these embodiments can be applied to each other. The display device 400 includes a display panel 110, a heat sink 120, a light adjustment structure 130, a transparent layer 140, and a temperature sensor 460. Specifically, the display device 400 can be regarded as an embodiment of the display device 100 in which a temperature sensor 460 is added. Therefore, the relevant descriptions of the display device 100 can be applied to the display device 400. The temperature sensor 460 is arranged between the display panel 110 and the heat sink 120. The temperature sensor 460 can be an external sensor. The temperature sensor 460 can sense the temperature change caused by the light emission of the light-emitting unit 112. Figure 6 The temperature sensor 460 can also be set in Figure 4 In the display device 200.

[0043] Figure 7 FIG. 1 is a schematic diagram illustrating the application of the display device disclosed herein. Figure 7 It shows the application of the display device 500 in augmented reality. Figure 7 In the embodiment, the display device 500 may include the specific design of any of the aforementioned display devices 100 to 400 and any equivalent alternative display device. Figure 7 It can be considered as an application of any of the aforementioned display devices 100 to 400, but is not limited thereto. The display device 500 can be a head-up display (HUD) device, but is not limited thereto. The display device 500 can be disposed on one side of the screen 510. The display device 500 can provide display light L500 emitted toward the screen 510, and the screen 510 can be tilted relative to the direction of travel of the display light L500. After the display light L500 is projected onto the screen 510, an image M500 can be formed in the field of view of the user 520. In some embodiments, the display device 500 can be installed in a vehicle, and the screen 510 can be the windshield of the vehicle. In some embodiments, the display device 500 can be installed in a motorcycle or similar vehicle body, and the screen 510 can be the windshield of a helmet. When the user 520 is driving a vehicle or a motorcycle, the user can directly view the image M500 provided by the display device 500 without adjusting the angle of the head (for example, lowering the head). Image M500 can provide information required for driving, such as instrument information and navigation information, so that the user 520 can also see the information required for driving while viewing the external environment (such as road conditions) outside the screen 510, which helps to improve driving safety.

[0044] In some embodiments, the display device 500 includes the light adjustment structure 130 described in the aforementioned embodiments, which controls the direction and / or focal length of the display light L500. For example, the display light L500 may include display light L502 and display light L504. In some embodiments, the display light L502 and display light L504 can provide different image information and / or be focused at different focal lengths. After the display light L502 and display light L504 are projected onto the screen 510, they can form images M502 and M504 in the field of view of the user 520. This allows the user 520 to experience stereoscopic (3D), realistic, and / or images with different depths of field. In some embodiments, the focal length of images M502 and M504 can be adjusted based on different external conditions so that the display position, depth of field, and other display conditions of images M502 and M504 can be coordinated with the external environment, thereby providing a more optimized user experience. In addition, the display brightness of the display device 500 can also be adjusted according to the brightness of the external environment to ensure that the user 520 can clearly see the image M500. For example, the display brightness of the display device 500 in a strong light environment can be higher than that in a weak light environment.

[0045] Figure 8 FIG. 1 is a block diagram of a display device according to an embodiment of the present disclosure. Figure 8 The display device 600 includes a display panel 610, a light sensor 620, and an object sensor 630. The display panel 610 is used to display images. The light sensor 620 is used to sense ambient light and is electrically connected to the display panel 610. The display panel 610 can adjust the brightness of the display panel 610 according to the sensed ambient light. The object sensor 630 is used to sense objects in the environment, and the display panel 610 can adjust the image content of the display panel 610 according to the sensed environmental objects. In some embodiments, the intensity of ambient light will affect whether the user can clearly see the displayed image of the display panel 610. Therefore, the display device 600 can use the result of the ambient light intensity sensed by the light sensor 620 to adjust the brightness of the displayed image to achieve a good display effect. In addition, in some embodiments, the display device 600 can be applied to a head-up display of a vehicle. When the vehicle is moving, the type and position of the surrounding objects may change at any time. To coordinate the displayed image with changes in surrounding objects, display device 600 can adjust the state of the displayed image (e.g., the image's depth of field) based on the surrounding object conditions sensed by object sensor 630 to provide a good display effect. Display device 600 can have the specific design of any of the aforementioned display devices 100-400, as well as any equivalent alternative embodiments. Light sensor 620 and object sensor 630 in display device 600 can be external sensors or integrated with display panel 610.

[0046] The display device 600 further includes a light controller 640 and an emission clock circuit 650 connected between the display panel 610 and the light sensor 620. The emission clock circuit 650 may include, but is not limited to, a chip or an integrated circuit. After sensing ambient light, the light sensor 620 may provide a corresponding signal to the light controller 640. In response to the signal from the light sensor 620, the light controller 640 may provide a corresponding control signal to the emission clock circuit 650. The emission clock circuit 650 may control the emission duty ratio of the light-emitting units in the display panel 610, thereby controlling the emission duration of the light-emitting units.

[0047] For example, when the light sensor 620 senses strong external light, it is necessary to increase the display brightness so that the user can see a clear image. At this time, the light controller 640 can provide a control signal to increase the light-emitting time to the light-emitting clock circuit 650 in response to the sensing result of the light sensor 620, and the light-emitting clock circuit 650 can, based on the control signal of the light controller 640, allow the light-emitting unit of the display panel 610 to emit light for a longer light-emitting time to display a brighter image. On the contrary, when the light sensor 620 senses weak external light, excessive image brightness can easily cause visual fatigue in the user and affect the user's sight. Therefore, the light controller 640 can provide a control signal to reduce the light-emitting time to the light-emitting clock circuit 650 in response to the sensing result of the light sensor 620, so that the light-emitting unit of the display panel 610 can display with a shorter light-emitting time.

[0048] In addition, the display device 600 may further include an image controller 660. The image controller 660 may be electrically connected to the object sensor 630 and the display panel 610. In some embodiments, the object sensor 630 may include an optical radar (liDAR), a camera, or the like. The object sensor 630 can identify surrounding objects, such as pedestrians, vehicles, lanes, road corners, or objects on other roads. When the object sensor 630 senses a specific object, it can provide the corresponding sensing result or signal to the image controller 660. The image controller 660 can adjust the image content to be displayed (for example, adjust the image depth of field or the image display position, etc.) based on the received object sensing result or signal to provide the image to be displayed at an appropriate depth of field. In this way, the display device 600 can not only provide clear images according to changes in the brightness of the environment, but also display the desired stereoscopic image according to the objects in the environment.

[0049] Figure 9 FIG. 1 is a block diagram of a display device according to an embodiment of the present disclosure. Figure 9The display device 700 mainly includes a display panel 610, a heat sink 720, a temperature sensor 730, a first controller 740, and a second controller 750. The display panel 610 has a plurality of light-emitting units that can emit light to achieve a display function. The temperature sensor 730 is used to sense the temperature of the display panel 610. In some embodiments, the temperature sensor 730 can be integrated into the display panel 610, such as the display device 300 described above. In some embodiments, the temperature sensor 730 can be arranged between the display panel 610 and the heat sink 720, such as the display device 400 described above. The heat sink 720 can be arranged adjacent to the display panel 610 to provide heat dissipation as needed to dissipate the heat generated by the display panel 610. In addition, the first controller 740 is used to control the heat sink 720, and the second controller 750 is used to control the display panel 610.

[0050] The display panel 610 generates heat when displaying, and the longer the light-emitting unit emits light or the greater the light-emitting current, the more heat will be generated. Under continuous heat generation, the light-emitting unit or the circuits around it will easily be damaged due to overheating. Therefore, the display device 700 uses a temperature sensor 730 to sense the temperature of the display panel 610, and the display device 700 can control the heat dissipation function of the heat sink 720 and adjust the display brightness of the display panel 610 in response to the sensing result of the temperature sensor 730. For example, the temperature sensor 730 can provide a first signal S1 to the first controller 740 according to the sensed temperature, and provide a second signal S2 to the second controller 750. The first controller 740 controls the heat dissipation work of the heat sink 720 in response to the first signal S1. The second controller 750 adjusts the display brightness of the display panel 610 in response to the second signal S2.

[0051] Specifically, the first controller 740 is, for example, a heat sink controller, which is disposed between the heat sink 720 and the temperature sensor 730. The first controller 740 can control the heat dissipation operation of the heat sink 720 in response to the first signal S1 provided by the temperature sensor 730. For example, if the first signal S1 of the temperature sensor 730 indicates that the sensing result is a high temperature, the first controller 740 can issue a corresponding control signal to improve the heat dissipation efficiency of the heat sink 720. In some embodiments, the heat sink 720 is a fan, and turning on the fan or accelerating the fan speed can improve the heat dissipation efficiency of the heat sink 720. In some embodiments, the heat sink 720 is a heat pipe, and turning on the flow of the heat dissipation fluid in the heat pipe or accelerating the flow of the heat dissipation fluid in the heat pipe can improve the heat dissipation efficiency of the heat sink 720.

[0052] In addition, the display device 700 further includes an emission clock circuit 760, which is electrically connected to the second controller 750 and the display panel 610. The second controller 750, for example, is an emission controller and is connected between the temperature sensor 730 and the emission clock circuit 760. When the second signal S2 from the temperature sensor 730 indicates that the temperature of the display panel 610 is high, the second controller 750 can provide a corresponding control signal to the emission clock circuit 760 based on the second signal S2. The emission clock circuit 760 can then provide an adjusted emission time duty ratio signal ST to the display panel 610 to adjust the display brightness of the display panel 610. In this way, the heating of the light-emitting unit can be controlled to prevent malfunction or damage due to overheating.

[0053] In general, when the temperature sensor 730 senses a high temperature, the first controller 740 can control the heat sink 720 to provide heat dissipation to reduce the temperature of the display panel 610. Simultaneously, the second controller 750 can control the display brightness of the display panel 610 to mitigate overheating. Therefore, the display device 700 is less likely to malfunction or damage due to overheating, and thus has an ideal service life and efficiency. In some embodiments, when the temperature sensor 730 senses a high temperature, the first controller 740 and the second controller 750 can selectively operate, alternately operate, or operate simultaneously to maintain good performance of the display device 700 and avoid damage and / or malfunction due to overheating. Furthermore, in some embodiments, the heat sink 720 can be a passive heat dissipation structure such as a heat sink or heat fins, which does not require control to provide heat dissipation. Therefore, the first controller 740 can be omitted.

[0054] Figure 10 FIG. 1 is a block diagram of a display device according to an embodiment of the present disclosure. Figure 10 The display device 700 mainly includes a display panel 610, a heat sink 720, a temperature sensor 730, a first controller 740 and a second controller 850. The display panel 610 has a plurality of light-emitting units that can emit light to achieve a display function. The temperature sensor 730 is used to sense the temperature of the display panel 610. The heat sink 720 can be arranged adjacent to the display panel 610 to dissipate the heat generated by the display panel 610. In some embodiments, the temperature sensor 730 can be integrated into the display panel 610, such as the display device 300 described above. In some embodiments, the temperature sensor 730 can be arranged between the display panel 610 and the heat sink 720, such as the display device 400 described above. In addition, the first controller 740 is used to control the heat sink 720, and the second controller 850 is used to control the display panel 610.

[0055] Similar to the display device 700, the display device 800 uses a temperature sensor 730 to sense the temperature of the display panel 610, and the display device 800 can control the heat dissipation function of the heat sink 720 and adjust the display brightness of the display panel 610 in response to the sensing result of the temperature sensor 730. For example, the temperature sensor 730 can provide a first signal S1 to the first controller 740 according to the sensed temperature, and provide a second signal S2 to the second controller 850. The first controller 740 controls the heat dissipation work of the heat sink 720 in response to the first signal S1. The second controller 850 adjusts the display brightness of the display panel 610 in response to the second signal S2. In this embodiment, the functions, structures, etc. of the display panel 610, the heat sink 720, the temperature sensor 730 and the first controller 740 can be referred to. Figure 9 The display device 700 is not repeated here.

[0056] In the present embodiment, the second controller 850 is, for example, a voltage controller (e.g., a gamma voltage controller), and the display device 800 further includes a data circuit 860. The data circuit 860 may include a chip, an integrated circuit, but is not limited thereto. The data circuit 860 is electrically connected to the second controller 850 and the display panel 610, wherein the data circuit 860 is used to provide a data signal DA to the display panel 610 to adjust the display brightness of the display panel 610. For example, when the second signal S2 provided by the temperature sensor 730 indicates that the temperature of the display panel 610 is high, the second controller 850 may send a corresponding control signal to the data circuit 860, thereby adjusting the display brightness of the display panel 610. For example, the data signal DA provided by the data circuit 860 can reduce the current of the light-emitting unit to reduce the heating of the light-emitting unit. That is, the second controller 850 of the present embodiment, in combination with the data circuit 860, can reduce the heating by reducing the current flowing through the light-emitting unit. In comparison, Figure 9 The second controller 750 and the light emitting clock circuit 760 of the display device 700 operate by changing the light emitting duty cycle of the light emitting unit to reduce the heat generation by shortening the light emitting time of the light emitting unit.

[0057] In some embodiments, the operation of the second controller 850 and data circuit 860, as well as the operation of the second controller 750 and lighting clock circuit 760, can be combined to adjust the display brightness of the display panel 610 and control heat generation. Furthermore, the light sensor 620 and object sensor 630 in the display device 600 can also be incorporated into the display device 700 or the display device 800 to provide the desired display function. For example, when the light sensor 620 senses an increase in ambient light, the display brightness of the display panel 610 can be adjusted to increase. In this case, the heat generated by the display panel 610 may also increase. Upon sensing a temperature increase, the temperature sensor 730 can provide a first signal S1 to the first controller 740 to control the heat sink 720 to provide or enhance heat dissipation. Simultaneously, the temperature sensor 730 can provide a second signal S2 to the second controller 750 and / or the second controller 850 to further adjust the display brightness of the display panel 610 to mitigate heat generation.

[0058] In some embodiments, the heat sink 720 can be replaced by a passive heat dissipation structure (such as a heat sink, heat fins, etc.), so the first controller 740 can be omitted, and only the second controller 750 / 850 adjusts the temperature of the display panel 610 in response to the signal of the temperature sensor 730. In some embodiments, the light sensor 620 can be applied to the display devices 700 and 800, and the second controller 750 / 850 can receive the signal of the light sensor 620 to adjust the display brightness of the display panel 610. In some embodiments, the second controller 850 in combination with the data circuit 860 can be used to replace the light controller 640 in the display device 600 in combination with the light clock circuit 650 to adjust the display brightness of the display panel 610 according to the sensing result of the light sensor 620. In addition, the object sensor 630 can be applied to the display devices 700 and 800, and the display panel 610 can also adjust the image it presents according to the surrounding objects sensed by the object sensor 630 to provide good image quality. Furthermore, Figures 8 to 10 In the embodiment of the present invention, the structural configuration relationship of the display panel 610, the heat sink 720 and the temperature sensor 730 can be referred to Figures 1 to 6 implementation method to achieve this. Figures 1 to 6 as well as Figures 8 to 10 The display device described can be applied to Figure 7 However, it can also be applied to other application environments, and the present disclosure is not limited thereto.

[0059] In summary, the display device of the disclosed embodiments, which incorporates a heat dissipation structure on one side of the display panel, effectively dissipates heat from the display panel through the heat dissipation function of the heat dissipation structure, thereby reducing the risk of damage and malfunction due to overheating in a high-efficiency display mode. Furthermore, the heat dissipation function of the heat dissipation structure and the display conditions of the display panel can be controlled and adjusted in response to ambient light sensing results and / or temperature changes. Thus, the display device can maintain an ideal display quality.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A display device, characterized in that: Include: A display panel having a light-emitting side and a non-light-emitting side, and comprising a plurality of light-emitting units and a plurality of light-collecting units, wherein each of the plurality of light-emitting units corresponds to one of the plurality of light-collecting units; a heat sink, disposed on the non-light-emitting side of the display panel; and The light adjustment structure is disposed on the light-emitting side of the display panel and includes a plurality of light control units, wherein each of the plurality of light control units corresponds to at least two of the plurality of light-emitting units.

2. The display device according to claim 1, wherein The display device further comprises: a temperature sensor, configured to sense the temperature of the display panel; A first controller, configured to control the heat dissipation element; as well as a second controller, configured to control the display panel; The temperature sensor provides a first signal to the first controller according to the temperature, and provides a second signal to the second controller.

3. The display device according to claim 2, wherein: The display device further comprises: A light-emitting clock circuit is electrically connected to the second controller and the display panel, wherein the light-emitting clock circuit is used to provide a light-emitting time duty cycle signal to the display panel to adjust the display brightness of the display panel.

4. The display device according to claim 2, wherein: The display device further comprises: The data circuit is electrically connected to the second controller and the display panel, wherein the data circuit is used to provide a data signal to the display panel to adjust the brightness of the display panel.

5. The display device according to claim 2, wherein: The temperature sensor is disposed between the display panel and the heat dissipation element.

6. The display device according to claim 2, wherein: The display panel includes a first substrate, wherein the plurality of light-emitting units and the temperature sensor are disposed on the first substrate.

7. The display device according to claim 1, wherein The heat dissipation element includes an active heat dissipation element.

8. The display device according to claim 1, wherein The display device further comprises: The light sensor is electrically connected to the display panel and is used to sense ambient light, and the display panel adjusts the brightness of the display panel according to the ambient light.

9. The display device according to claim 1, wherein The display device further comprises: The adhesive layer is disposed between the non-light-emitting side of the display panel and the heat dissipation element.

10. The display device according to claim 1, wherein The display panel further comprises: The light-transmitting layer is disposed between the plurality of light-emitting units and the plurality of light-collecting units.

11. The display device according to claim 1, wherein The display device further comprises: The transparent layer is disposed between the display panel and the light adjustment structure.

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