Backlight module

Abstract

This application relates to a backlight module, including a back panel; a lamp panel including at least a first lamp strip and a second lamp strip, the first lamp strip having a first adapter portion, and the second lamp strip having a second adapter portion adapted to the first adapter portion; a reflector attached to the surface of the lamp panel away from the back panel; a first connector connected to the end of the first lamp strip; and a second connector connected to the end of the second lamp strip; wherein the first adapter portion and the second adapter portion are adapted to each other, and the first lamp strip and the second lamp strip are connected by the interaction of the first connector and the second connector, so that the surfaces of the first lamp strip and the second lamp strip away from the back panel form a continuous planar structure. This backlight module not only achieves mechanical connection performance between adjacent lamp strips, but also ensures the flatness of the connection between adjacent lamp strips, thereby ensuring the flatness of the reflector and the lamp panel, so as to eliminate abnormal light scattering caused by local bulges, and further avoid the appearance of shadows in the displayed image.

Description

Technical Field

[0001] This application relates to the field of television technology, and in particular to a backlight module. Background Technology

[0002] As living standards improve, people have increasingly higher demands for television picture quality. Currently, the connection method for the light strips in ordinary miniLED TVs and QLED TVs is usually a snap-fit ​​connection with a central connector or a plug-and-play connection.

[0003] However, because the socket has a certain height, it will push up the reflective sheet at the insertion point, causing the reflective sheet surface to be uneven. This will further cause shadows to appear in the display at this position, seriously affecting the display quality. Utility Model Content

[0004] In view of this, the present application provides a backlight module to solve at least one problem existing in the background art.

[0005] In a first aspect, embodiments of this application provide a backlight module, the backlight module comprising:

[0006] Back panel;

[0007] A light panel is connected to the back plate. A plurality of light-emitting elements are connected to the side of the light panel away from the back plate. The light-emitting elements are used to emit light. The light panel includes at least a first light strip and a second light strip. The first light strip is provided with a first adapter portion, and the second light strip is provided with a second adapter portion that is adapted to the first adapter portion.

[0008] A reflector sheet is attached to the surface of the lamp panel away from the back plate.

[0009] The first connector is attached to the end of the first light strip;

[0010] The second connector is attached to the end of the second light strip;

[0011] The first adapter and the second adapter are adapted to each other, the first light strip and the second light strip are connected by the interaction of the first connector and the second connector, and the side surfaces of the first light strip and the second light strip away from the back plate form a continuous planar structure.

[0012] In conjunction with the first aspect of this application, in an optional embodiment, the first adapter includes a first pin protruding from the end of the first light strip, and the second adapter includes a second pin recessed near the end of the second light strip, wherein the first pin is inserted into the second pin to electrically connect the first light strip and the second light strip.

[0013] In conjunction with the first aspect of this application, in an optional embodiment, the first adapter further includes a protrusion protruding from the end of the first light strip, and the second adapter further includes a recessed portion recessed near the end of the second light strip close to the first light strip, wherein the protrusion and the recess are adapted to each other.

[0014] In conjunction with the first aspect of this application, in an optional embodiment, the first light strip is provided with a first pin, and the second light strip is provided with a second pin adapted to the first pin, the first pin being located in the protrusion and the second pin being located in the recess.

[0015] In conjunction with a first aspect of this application, in an alternative embodiment, the protrusion is formed by extending a portion of the end of the first light strip.

[0016] In conjunction with the first aspect of this application, in an alternative embodiment, the protrusion is located at the middle position of the first light strip in its width direction.

[0017] In conjunction with the first aspect of this application, in an optional embodiment, the first connector is a ferromagnetic material, the second connector is a magnet, and the first connector and the second connector attract each other so that the first light strip and the second light strip are connected.

[0018] In conjunction with the first aspect of this application, in an optional embodiment, the first connector is a snap-fit ​​protrusion protruding from the end of the first light strip near the end of the second light strip, and the second connector is a snap-fit ​​groove recessed from the end of the second light strip near the end of the first light strip. The snap-fit ​​protrusion is inserted into the snap-fit ​​groove so that the first light strip and the second light strip are connected.

[0019] In conjunction with the first aspect of this application, in an optional embodiment, the end of the first light strip is further provided with a first connecting portion, and the first connecting member is connected to the first connecting portion of the first light strip; the end of the second light strip is further provided with a second connecting portion, and the second connecting member is connected to the second connecting portion of the second light strip.

[0020] In conjunction with the first aspect of this application, in an optional embodiment, the end of the first light strip is provided with two first connecting portions, the two first connecting portions being located on both sides of the protrusion; the end of the second light strip is provided with two second connecting portions, the two second connecting portions being located on both sides of the recess.

[0021] The backlight module provided in this application embodiment, through the matching of the first adapter and the second adapter, and the interaction between the first connector and the second connector, not only achieves the mechanical connection performance between adjacent light strips, but also ensures the flatness of the connection between adjacent light strips, thereby ensuring the flatness of the reflector and the light panel, so as to eliminate abnormal light scattering caused by local bulges and further avoid the appearance of shadows in the display screen.

[0022] Furthermore, by embedding the pins inside the light strip, the circuit can be directly connected when splicing adjacent light strips, reducing assembly steps.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 A schematic diagram of the light trajectory emitted by LED beads in a backlight module in the prior art, provided for embodiments of this application;

[0026] Figure 2 A schematic diagram of another light trajectory emitted by LED beads in a backlight module in the prior art provided for embodiments of this application;

[0027] Figure 3 This is a top view of the backlight module provided in an embodiment of this application;

[0028] Figure 4 for Figure 3 A partially enlarged view of the cross-sectional view at point AA;

[0029] Figure 5 A partial cross-sectional view of the backlight module and a diagram showing the positional relationship between the backlight module and the diffuser plate provided in the embodiments of this application;

[0030] Figure 6 This is a partial exploded view of the structure of the first and second LED strips in the backlight module provided in the embodiments of this application;

[0031] Figure 7 This is a partial top view of the first and second LED strips in the backlight module provided in the embodiments of this application.

[0032] Figure label:

[0033] 20. Lamp board; 21. First lamp strip; 211. First adapter; 212. First pin; 213. Protrusion; 214. First connecting part;

[0034] 22. Second LED strip; 221. Second adapter; 222. Second pin; 223. Recessed portion; 224. Second connecting portion;

[0035] 23. Light-emitting components;

[0036] 24. Connecting seat;

[0037] 30. Reflective sheet;

[0038] 40. First connecting component;

[0039] 50. Second connector;

[0040] 60. Diffuser plate. Detailed Implementation

[0041] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0042] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this utility model.

[0043] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly indicate that at least one of those features is included. In the description of this utility model, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0046] Please refer to Figure 1 and Figure 2 Traditional light strips are spliced ​​together by a middle connector 24. However, the height of the connector 24 causes the reflector 30 to bulge in some areas. The multiple LEDs installed on the light strip emit light, but the middle part of the bulging reflector 30 due to the connector 24 can reflect less light, thus forming a shadow in the display screen and affecting the visual experience.

[0047] Figure 1 The arrows in the diagram show the light trajectory of the light emitted by the LED bead shining directly onto the raised reflector 30, and then the reflector 30 reflects the light.

[0048] Figure 2 The arrows in the diagram illustrate the trajectory of the light emitted by the LED beads as it travels towards the diffuser plate 60, is reflected by the diffuser plate 60, travels towards the raised reflector plate 30, and is reflected again.

[0049] To address the aforementioned technical problems, this application provides a backlight module. This backlight module utilizes the first adapter 211 provided on the first light strip 21 and the second adapter 221 provided on the second light strip 22 to be adapted to each other. At the same time, they are connected by the interaction of the first connector 40 and the second connector 50, so that the surfaces of the first light strip 21 and the second light strip 22 away from the back plate form a continuous planar structure. This ensures the flatness of the reflector 30 attached to the surfaces of the first light strip 21 and the second light strip 22, and at the same time, it enables the light emitted by the LEDs to be reflected evenly, thereby eliminating shadows.

[0050] For details, please refer to Figures 3 to 7 This application provides a backlight module including a backplate, a lamp panel 20 with multiple light-emitting elements 23 for emitting light, a reflector 30, a first connector 40, and a second connector 50. The lamp panel 20 includes at least a first light strip 21 and a second light strip 22, and may also include a third light strip and a fourth light strip. The following description uses the lamp panel 20 including the first light strip 21 and the second light strip 22 as an example. The first light strip 21 and the second light strip 22 are provided with a first adapter portion 211 and a second adapter portion 221 that are mutually adapted to each other. The reflector 30 is attached to the surface of the lamp panel 20 away from the backplate. The first light strip 21 and the second light strip 22 are connected to each other under the cooperative action of the first connector 40 and the second connector 50, forming a continuous planar structure without height difference.

[0051] The backplate refers to the supporting structure, which can be made of metal sheet, used to support the lamp panel 20 assembly and maintain the overall structural stability. The lamp panel 20 refers to the substrate on which the light-emitting elements are mounted, which can be made of flexible circuit board with multiple light-emitting diode arrays on its surface. The first adapter 211 refers to the structural feature at the end of the lamp strip, which can be designed as a protrusion or recess to physically engage with adjacent lamp strips. The second adapter 221 is a complementary structure to the first adapter 211, which can be designed as a corresponding recess or protrusion to ensure mechanical interlocking when the two lamp strips are joined.

[0052] The reflective sheet 30 refers to the optical reflective layer, which can be a high-reflectivity PET film, directly adhered to the surface of the lamp panel 20 using pressure-sensitive adhesive. The first connector 40 refers to the mechanical connecting component, which can be a magnetic assembly or a snap-fit ​​structure, used to establish the connection force between the lamp strips. The second connector 50 refers to the component that cooperates with the first connector 40, which can be designed as a corresponding magnet or slot, working together with the first connector 40 to complete the connection action.

[0053] Compared to traditional solutions that rely on independent connectors 24 to interconnect LED strips, the above-described backlight module inevitably introduces additional structural thickness. This embodiment, through the matching of the first adapter 211 and the second adapter 221, and the interaction between the first connector 40 and the second connector 50, not only achieves mechanical connection between adjacent LED strips but also ensures the flatness of the connection points. This, in turn, ensures the flatness of the reflector 30 and the lamp board 20, eliminating abnormal light scattering caused by local bulges and further preventing shadows from appearing in the displayed image.

[0054] In an optional embodiment, the first adapter 211 includes a first pin 212 protruding from the end of the first light strip 21, and the second adapter 221 includes a second pin 222 recessed near the end of the first light strip 21. The first pin 212 is inserted into the second pin 222, so that the first light strip 21 and the second light strip 22 are electrically connected.

[0055] The first pin 212 refers to a conductive structure extending outward from the end of the first light strip 21. Specifically, it can be achieved by stamping a metal sheet and then welding it to the end of the light strip. Its extension length can be adapted to the recess depth of the second pin 222. The second pin 222 refers to a conductive groove recessed inward at the end of the second light strip 22. Specifically, it can be achieved by creating a groove in the light strip substrate and filling it with conductive material. The shape of the groove matches the shape of the first pin 212.

[0056] In this embodiment, during the insertion process, the protruding portion of the first pin 212 is completely accommodated within the recessed space of the second pin 222, ensuring that there is no overlapping thickness at the connection between the first light strip 21 and the second light strip 22. When the reflector 30 is attached to the surface of the lamp board 20, the continuous planar structure at the connection avoids the local bulges caused by traditional socket fastening, thereby eliminating the risk of the reflector 30 being pushed up. The electrical connection is established directly through physical contact between the pins, without the need for additional soldering or intermediate connectors. This embodiment reduces assembly steps by embedding the pins inside the light strips, directly connecting the circuit when splicing adjacent light strips.

[0057] In an optional embodiment, the first adapter 211 further includes a protrusion 213 protruding from the end of the first light strip 21, and the second adapter 221 further includes a recess 223 recessed near the end of the second light strip 22 close to the first light strip 21, wherein the protrusion 213 and the recess 223 are adapted to each other.

[0058] In this embodiment, the protrusion 213 refers to a three-dimensional protruding structure formed at the end of the first light strip 21, which can be achieved using a metal stamping process, and its height matches the thickness of the light strip substrate. This structure provides a positioning reference through mechanical fitting, ensuring that the planes of the two light strips are collinear when connected. The recess 223 refers to a three-dimensional groove formed at the end of the second light strip 22, which can be achieved using CNC milling, and its depth is complementary to the height of the protrusion 213. This structure provides a accommodating space for the protrusion 213, and eliminates the height difference at the connection point through complementary geometric fit.

[0059] Specifically, when the first light strip 21 and the second light strip 22 are connected, the protrusion 213 embeds into the recess 223 to form a spatially complementary structure. After the top surface of the protrusion 213 contacts the bottom surface of the recess 223, the two light strips are forced to reach a predetermined position in the vertical direction. The upper surface of the connection between the two light strips is compensated by the thickness of the protrusion 213 and the recess 223, forming a continuous plane without height difference. This mechanical fitting structure replaces the traditional plug-in connection method, eliminating the extra height caused by the intermediate connector. When the reflector 30 is attached to the surface of the light strip, it will not undergo local deformation due to the protrusion structure at the connection.

[0060] Furthermore, the first pin 212 is located in the protrusion 213, and the second pin 222 is located in the recess 223. In this embodiment, the pins are integrated into the fitting structure of the protrusion 213 and the recess 223, and the height difference caused by the pins is completely eliminated by utilizing the space limitation of the adapter structure. This embodiment can solve the problem that the reflector 30 is pushed up at the connection point of the light strip due to the overlapping of pins, ensuring that the reflector 30 remains flat in the connection area and eliminating the shadow defects caused by the deformation of the reflector 30 in the display image.

[0061] In an optional embodiment, the protrusion 213 extends from a portion of the end of the first light strip 21. "Partially extending" means that the protrusion 213 and the body of the first light strip 21 are continuously formed from the same material. Specifically, this can be achieved by stamping to make a localized area at the end of the light strip bulge upwards to form the protrusion 213, or by pre-reserving a protrusion structure in the mold during injection molding. This feature, by integrally molding the connecting structure with the light strip body, avoids the stacking height of independent connecting parts.

[0062] Furthermore, the protrusion 213 is located at the middle position of the first light strip 21 in its width direction.

[0063] This can be understood as follows: when the first light strip 21 and the second light strip 22 are joined, the protrusion 213 is positioned in the middle of the width direction, causing the stress at the connection point of the light strips to be symmetrically distributed along both sides. The mechanical forces on both sides are balanced and canceled out during the joining process, preventing tilting or warping of the connection point due to uneven force on one side. After joining, the contact surface forms a flat and continuous plane, and the reflector 30 is evenly supported, eliminating the lifting phenomenon caused by local bulges. In addition, the protrusion 213 in the middle position, through its symmetrical layout, disperses the mechanical force to both sides of the light strip, effectively suppressing deformation of the connection point and ensuring the flatness of the contact surface of the reflector 30.

[0064] In an optional embodiment, the first connector 40 is a ferromagnetic material, the second connector 50 is a magnet, and the first connector 40 and the second connector 50 attract each other to connect the first light strip 21 and the second light strip 22.

[0065] Ferromagnetic materials refer to materials that can be attracted by a magnetic field. These can be made of pure iron, silicon steel sheets, or iron-nickel alloys. Their function is to create a connection without physical protrusions through magnetic attraction with a magnet. Magnets are objects that can generate a stable magnetic field. These can be made of neodymium iron boron permanent magnets or ferrite permanent magnets. Their function is to provide an attractive force without mechanical clips, avoiding height differences at the connection point.

[0066] When the first light strip 21 has a ferromagnetic connector at its end and the second light strip 22 has a permanent magnet connector at its end, they automatically attract and fix themselves together under magnetic force when they come close. Because the magnetic attraction eliminates the need for the insertion depth and support thickness of traditional snap-fit ​​structures, the surface away from the back panel remains flat after the two light strips are connected. The reflective sheet 30 will not experience localized deformation due to the protrusion of the connector during the bonding process, thus eliminating display shadows caused by abnormal light scattering.

[0067] In an optional embodiment, the first connector 40 has a snap-fit ​​protrusion protruding from the end of the first light strip 21 near the end of the second light strip 22, and the second connector 50 has a snap-fit ​​groove recessed from the end of the second light strip 22 near the end of the first light strip 21. The snap-fit ​​protrusion is inserted into the snap-fit ​​groove so that the first light strip 21 and the second light strip 22 are connected.

[0068] In this embodiment, the snap-fit ​​protrusion refers to a local protrusion structure extending from the end of the first light strip 21. It can be achieved using metal stamping or injection molding processes, and its shape can be rectangular, trapezoidal, or arc-shaped. This structure is used to cooperate with the groove of the second light strip 22 to form a mechanical lock. The snap-fit ​​groove refers to a recessed space at the end of the second light strip 22 that matches the shape of the protrusion. It can be formed by mold processing or mechanical cutting, and its depth is adapted to the height of the protrusion. This structure is used to accommodate the protrusion and restrict its displacement in the vertical direction. After the snap-fit ​​protrusion is inserted into the snap-fit ​​groove, the two form a limiting constraint in the horizontal direction, keeping the upper surfaces of the first light strip 21 and the second light strip 22 flush. During the connection process, the friction between the sidewall of the protrusion and the inner wall of the groove maintains the relative position between the light strips, eliminating the need for additional connecting components. The reflector 30 can directly cover the continuous plane formed by the light strips, avoiding local bulges caused by height differences at the connection point.

[0069] In an optional embodiment, the first light strip 21 in the backlight module is provided with a first connecting portion 214 at its end, and a first connector 40 is connected to the first connecting portion 214; the second light strip 22 is provided with a second connecting portion 224 at its end, and a second connector 50 is connected to the second connecting portion 224.

[0070] Furthermore, the end of the first light strip 21 is provided with two first connecting portions 214, which are located on both sides of the protrusion 213; the end of the second light strip 22 is provided with two second connecting portions 224, which are located on both sides of the recess 223.

[0071] In this embodiment, the snap-fit ​​protrusion is a partial protrusion extending from the end of the first light strip 21. The area of ​​the first light strip 21 that is not extended is the first connecting portion 214, which is used to mate with the second connecting portion 224 of the second light strip 22. Similarly, the snap-fit ​​groove is a recessed space provided in a portion of the end of the second light strip 22 that matches the snap-fit ​​protrusion. The remaining area at the end of the second light strip 22 is the second connecting portion 224.

[0072] The two first connecting portions 214 are located on both sides of the protrusion 213, and the two second connecting portions 224 are located on both sides of the recess 223, which enables adjacent light strips to fit together and improves the connection firmness and stability of adjacent light strips.

[0073] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1. A backlight module, characterized in that, The backlight module includes: Back panel; A light panel (20) is connected to the back panel. A plurality of light-emitting elements (23) are connected to the side of the light panel (20) away from the back panel. The light-emitting elements (23) are used to emit light. The light panel (20) includes at least a first light strip (21) and a second light strip (22). The first light strip (21) is provided with a first adapter (211), and the second light strip (22) is provided with a second adapter (221) that is adapted to the first adapter (211). A reflector (30) is attached to the surface of the lamp panel (20) away from the back plate; The first connector (40) is connected to the end of the first light strip (21); The second connector (50) is connected to the end of the second light strip (22); The first adapter (211) is adapted to the second adapter (221), and the first light strip (21) and the second light strip (22) are connected by the interaction of the first connector (40) and the second connector (50), so that the first light strip (21) and the second light strip (22) form a continuous planar structure on the side surface away from the back plate.

2. The backlight module according to claim 1, characterized in that, The first adapter (211) includes a first pin (212) protruding from the end of the first light strip (21), and the second adapter (221) includes a second pin (222) recessed near the end of the second light strip (21). The first pin (212) is inserted into the second pin (222) so that the first light strip (21) and the second light strip (22) are electrically connected.

3. The backlight module according to claim 1, characterized in that, The first adapter (211) further includes a protrusion (213) protruding from the end of the first light bar (21), and the second adapter (221) further includes a recess (223) recessed near the end of the second light bar (22) near the first light bar (21), wherein the protrusion (213) and the recess (223) are adapted to each other.

4. The backlight module according to claim 3, characterized in that, The first light strip (21) is provided with a first pin (212), and the second light strip (22) is provided with a second pin (222) that is adapted to the first pin (212). The first pin (212) is located in the protrusion (213), and the second pin (222) is located in the recess (223).

5. The backlight module according to claim 3, characterized in that, The protrusion (213) is formed by extending a portion of the end of the first light bar (21).

6. The backlight module according to claim 5, characterized in that, The protrusion (213) is located at the middle position of the first light strip (21) in its width direction.

7. The backlight module according to any one of claims 1 to 6, characterized in that, The first connector (40) is a ferromagnetic material, and the second connector (50) is a magnet. The first connector (40) and the second connector (50) attract each other so that the first light strip (21) and the second light strip (22) are connected.

8. The backlight module according to any one of claims 1 to 6, characterized in that, The first connector (40) is a snap-fit ​​protrusion protruding from the end of the first light strip (21) near the end of the second light strip (22), and the second connector (50) is a snap-fit ​​groove recessed from the end of the second light strip (22) near the end of the first light strip (21). The snap-fit ​​protrusion is inserted into the snap-fit ​​groove so that the first light strip (21) and the second light strip (22) are connected.

9. The backlight module according to claim 3, characterized in that, The end of the first light strip (21) is also provided with a first connecting part (214), and the first connecting member (40) is connected to the first connecting part (214) of the first light strip (21); the end of the second light strip (22) is also provided with a second connecting part (224), and the second connecting member (50) is connected to the second connecting part (224) of the second light strip (22).

10. The backlight module according to claim 9, characterized in that, The first light strip (21) has two first connecting parts (214) at its end, and the two first connecting parts (214) are located on both sides of the protrusion (213); the second light strip (22) has two second connecting parts (224) at its end, and the two second connecting parts (224) are located on both sides of the recess (223).

Images