Display device

Abstract

This disclosure provides a display device. The display device includes: a display panel, including a display area and a peripheral area surrounding the display area; a backlight module, located on the light-incident side of the display panel, including: a back plate, a light guide plate, and a plurality of lamp strips; the back plate includes: a polygonal first base plate, and a plurality of first side plates connected to the first base plate at its edge; the light guide plate is located between the first base plate and the display panel, and the lamp strips are located between the first side plates and the light guide plate; an assembly frame is assembled with the display panel and the backlight module at their edges, the outer contour of the assembly frame being circular.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to display devices. Background Technology

[0002] With the development of technology, monitors are being used in more and more fields, and users are no longer satisfied with traditional shapes such as quadrilaterals for screens. There is an increasing demand for irregularly shaped screens such as circular screens. However, the bezel size of existing circular display products is relatively large, which affects the display effect. Summary of the Invention

[0003] This disclosure provides a display device, which includes:

[0004] The display panel includes a display area and a surrounding area that surrounds the display area;

[0005] A backlight module, located on the light-incident side of the display panel, includes: a back plate, a light guide plate, and multiple light strips; the back plate includes: a polygonal first base plate, and multiple first side plates connected to the first base plate at its edge; the light guide plate is located between the first base plate and the display panel, and the light strips are located between the first side plates and the light guide plate;

[0006] The assembly frame is assembled with the display panel and backlight module at their edges, and the outer contour of the assembly frame is circular.

[0007] In some embodiments, the assembly frame includes:

[0008] The first assembly frame includes: a front panel and a second side panel connected to the front panel at the edge of the front panel; the front panel covers a portion of the peripheral area on the side of the display panel away from the backlight module, and the second side panel is disposed opposite to the side of the display panel and the side of the backlight module.

[0009] The second assembly frame includes: a second base plate located between the backlight module and the display panel, and a third side plate connected to the second base plate at the edge of the second base plate; in the area where two adjacent first side plates are connected, the third side plate is located between the second side plate and the first side plate.

[0010] In some embodiments, the display area is circular in shape;

[0011] (R2-R1) / R1 is greater than or equal to 0.045 and less than or equal to 0.114, where R1 is the radius of the display area and R2 is the distance between the center of the display area and the outer contour of the first assembly frame.

[0012] In some embodiments, the back panel further includes:

[0013] Multiple first connectors are integrally connected to the first side plates outside the connection points between two adjacent first side plates, for fixing to the assembly frame.

[0014] In some embodiments, the first connector includes a first connecting portion that is parallel to the plane of the first base plate;

[0015] The first connecting portion includes a first opening;

[0016] The first assembly frame includes a first rivet post corresponding to a first opening, and the first rivet post and the first connecting part are fixed in the area of ​​the first opening by a first screw.

[0017] In some embodiments, the second assembly frame further includes a second opening that at least avoids the opening of the first rivet.

[0018] In some embodiments, the first connecting portion is connected to the first side plate.

[0019] In some embodiments, the first connector further includes a second connecting portion and a third connecting portion; the third connecting portion is connected to the first side plate, and the two ends of the second connecting portion are respectively connected to the third connecting portion and the first connecting portion, the first connecting portion is parallel to the third connecting portion, and the second connecting portion is parallel to the first side plate.

[0020] In some embodiments, the third connection portion includes a third opening;

[0021] The second assembly frame includes threaded openings that correspond one-to-one with the third opening. In the area of ​​the third opening and the threaded opening, the third connecting part is fixed to the second assembly frame by a second screw.

[0022] In some embodiments, the first connector includes: a first connecting portion parallel to the plane of the first base plate and connected to the first side plate, and a first buckle located on the side of the first connecting portion near the second assembly frame;

[0023] The second assembly frame includes a first snap-fit ​​opening that corresponds one-to-one with the first buckle, and the first buckle snaps into the second assembly frame through the first snap-fit ​​opening.

[0024] In some embodiments, the display device includes a plurality of flip-chip thin-film circuit boards, which are bent along a first side panel;

[0025] The first connector connects only to the first side panel of the non-corresponding flip-chip thin-film circuit board.

[0026] In some embodiments, the display device includes K second printed circuit boards, where K is an integer greater than 1 and less than N, and N is the number of sides of the first base plate; each second printed circuit board is connected to at least one flip-chip thin film circuit board, and each second printed circuit board corresponds to a first side plate.

[0027] The backplate includes NK first connectors.

[0028] In some embodiments, the back panel further includes:

[0029] Multiple second connectors are connected to the first side plate corresponding to the flip-chip thin film circuit board in the area outside the bending area of ​​the flip-chip thin film circuit board; the second connectors are used to fix the first connecting frame.

[0030] In some embodiments, the second connector includes: a fourth connecting portion that is bent and connected to the first side plate, and a fifth connecting portion that is connected to the fourth connecting portion;

[0031] The fifth connecting part has a fourth opening;

[0032] The first assembly frame has a second rivet that corresponds to and passes through the fourth opening; in the fourth opening, the second connecting part is fixed to the second rivet by a third screw.

[0033] The second assembly frame has a fifth opening to avoid the second rivet.

[0034] In some embodiments, the first side plate includes at least one first bend portion that bends toward the light strip, with the light strip located between the bend portion and the first base plate.

[0035] In some embodiments, the display panel includes a plurality of straight edges and a plurality of curved edges;

[0036] The display device also includes:

[0037] Multiple flip-chip thin-film circuit boards are bonded to the display panel in the peripheral area of ​​at least some of the straight edges.

[0038] In some embodiments, at least a portion of the peripheral area of ​​the straight edge is bonded to two flip-chip thin-film circuit boards.

[0039] In some embodiments, at least a portion of the peripheral area of ​​the straight edge is bonded to only one flip-chip circuit board.

[0040] In some embodiments, the number of sides N of the first base plate satisfies the following condition: Where N is rounded down to the nearest integer; L3 is the width of the flip-chip circuit board in the direction of the straight edge extension, n is the number of flip-chip circuit boards bonded to a straight edge, and L4 is the gap between adjacent flip-chip circuit boards bonded to a straight edge.

[0041] In some embodiments, the display device further includes: a plurality of rectifiers; each rectifier being electrically connected to an even number of light strips.

[0042] In some embodiments, the display device includes two rectifiers, the light strips correspond one-to-one with the first side plate, and the number of sides N of the first base plate is a multiple of 4.

[0043] In some embodiments, the display device further includes a plurality of second printed circuit boards bonded to a flip-chip thin-film circuit board;

[0044] The flip-chip thin-film circuit board bends through the gap between the first assembly frame and the second assembly frame toward the back panel away from the display panel;

[0045] The back panel has a plurality of first recesses recessed toward the display panel side, the first recesses accommodating a second printed circuit board;

[0046] The display device also includes a cover covering the second printed circuit board and the flip-chip thin film circuit board on the side of the back plate opposite to the display panel;

[0047] The second assembly frame includes alignment marks that correspond one-to-one with the cover pieces;

[0048] The alignment marks include two alignment mark lines that are parallel to a pair of sides of the cover, and the pair of sides of the cover overlap with the alignment mark lines.

[0049] In some embodiments, the cover is attached to the second assembly frame and the back panel via adhesive material;

[0050] The thickness of the adhesive material between the second assembly frame and the cover is greater than the thickness of the adhesive material between the back plate and the cover.

[0051] In some embodiments, the adhesive material includes a first adhesive material that is applied to the cover and a second adhesive material located on the side of the first adhesive material opposite to the cover.

[0052] The second adhesive material is at least attached to the second assembled frame.

[0053] In some embodiments, the display device further includes: a controller assembled with the back panel on the side of the back panel away from the display panel, and a plurality of flexible circuit boards; one end of the flexible circuit board is connected to the controller, and the other end of the flexible circuit board is connected to a second printed circuit board.

[0054] The flexible circuit board is bonded to the backing plate using a third adhesive material.

[0055] In some embodiments, the first base plate on the side opposite to the display panel further includes: an annular protrusion, a pair of opposing first strip protrusions, and a pair of opposing second strip protrusions; the center of the annular protrusion coincides with the center of the display area; the first strip protrusions and the second strip protrusions intersect, the annular protrusion is located between the pair of opposing first strip protrusions, and the annular protrusion is located between the pair of opposing second strip protrusions;

[0056] The display device further includes: an annular reinforcing rib located on the side of the annular protrusion facing away from the display panel, a first strip reinforcing rib located on the side of the first strip protrusion facing away from the display panel, and a second strip reinforcing rib located on the side of the second strip protrusion facing away from the display panel.

[0057] In some embodiments, the display device further includes:

[0058] The mirror cover is located on the side of the front panel opposite to the display panel.

[0059] In some embodiments, the display device further includes:

[0060] The first optical film is located between the front panel and the display panel;

[0061] The sealing adhesive connects the front panel and the first optical film at the edge of the front panel near the display area.

[0062] The adhesive is located between the first optical film and the mirror cover plate in the area surrounded by the front panel. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0064] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of the present disclosure;

[0065] Figure 2 The following are provided for embodiments of this disclosure: Figure 1 A schematic diagram of the cross-section of AA';

[0066] Figure 3 The following are provided for embodiments of this disclosure: Figure 1 A schematic diagram of the cross-section of BB';

[0067] Figure 4 A schematic diagram of the edge position of a display device with different N values ​​provided in an embodiment of this disclosure;

[0068] Figure 5 A schematic diagram illustrating the limiting dimensions of R2, L1, and L2 in a display device provided in an embodiment of this disclosure;

[0069] Figure 6 This is a schematic diagram illustrating the bonding of a display panel and a flip-chip thin-film circuit board according to an embodiment of this disclosure;

[0070] Figure 7This is a schematic diagram illustrating another embodiment of the present disclosure of bonding a display panel to a flip-chip thin-film circuit board;

[0071] Figure 8 This is a schematic diagram of another display device provided in an embodiment of the present disclosure;

[0072] Figure 9 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0073] Figure 10 A schematic diagram of the adhesive application area of ​​a cover provided in an embodiment of this disclosure;

[0074] Figure 11 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0075] Figure 12a This is a schematic diagram of a flexible circuit board in a bent state according to an embodiment of the present disclosure;

[0076] Figure 12b This is a schematic diagram of a flexible circuit board in an unbent state, provided in an embodiment of this disclosure.

[0077] Figure 13 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0078] Figure 14 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0079] Figure 15 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0080] Figure 16 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0081] Figure 17 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0082] Figure 18 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0083] Figure 19 This is a schematic diagram of the structure of another display device provided in an embodiment of the present disclosure. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0085] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0086] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0087] This disclosure provides a display device, such as... Figure 1 , Figure 2 , Figure 3 As shown, the display device includes:

[0088] Display panel 1 includes display area 2 and peripheral area 3 surrounding display area 2;

[0089] The backlight module 4 is located on the light-incident side of the display panel 1 and includes: a back plate 5, a light guide plate 6, and multiple light strips 7; the back plate 5 includes: a polygonal first base plate 8, and multiple first side plates 9 connected to the edge of the first base plate 8; the light guide plate 6 is located between the first base plate 8 and the display panel 1, and the light strips 7 are located between the first side plates 9 and the light guide plate 6.

[0090] The assembly frame 10 is assembled with the display panel 1 and the backlight module 4 at their edges. The outer contour 11 of the assembly frame 10 is circular.

[0091] The display device provided in this embodiment includes a polygonal first base plate as the back plate. By increasing the number of sides of the first base plate, the distance between the display area and the outer contour of the assembly frame is reduced, the frame size is reduced, and the display effect is improved.

[0092] It should be noted that, Figure 2 For along Figure 1 Cross-sectional view of AA'. Figure 3 For along Figure 1 Cross-sectional view of BB'. Figure 1 The image shows only a portion of the display device, and only the orthographic projection relationship between the display area 2, the polygonal back plate 5, and the outer contour 11 of the assembly frame is shown.

[0093] It should be noted that the outer contour of the assembly frame is the contour of the display device, and the corresponding contour of the display device is circular, that is, the display device provided in this embodiment is a circular display device.

[0094] In some embodiments, the display panel is a liquid crystal display panel. The liquid crystal display panel includes: an array substrate and a counter substrate disposed opposite to each other, and a liquid crystal layer located between the array substrate and the counter substrate.

[0095] In a specific implementation, the display area of ​​the liquid crystal display panel includes multiple sub-pixels. The array substrate includes a first substrate and pixel circuits disposed on the first substrate, each corresponding to a sub-pixel. The pixel circuits include thin-film transistors (TFTs) and pixel electrodes electrically connected to the TFTs. The TFTs include an active layer, a gate, a source, and a drain. The array substrate also includes multiple horizontally and vertically intersecting scan lines and data lines. The scan lines and data lines divide the sub-pixel areas. The gate of the TFT is electrically connected to the scan line, the source of the TFT is electrically connected to the data line, and the drain of the TFT is electrically connected to the pixel electrode. In a specific implementation, the scan lines are used to input scan signals, and the data lines are used to input data signals. When the TFTs are turned on under the control of the scan signals provided by the scan lines, the data signals input through the data lines can be transmitted to the pixel electrodes through the TFTs. In a specific implementation, the thin-film transistor can be a top-gate structure, i.e., the gate is located between the active layer and the source and drain electrodes. Correspondingly, the array substrate also includes: a buffer layer located between the first substrate and the active layer, a first gate insulating layer located between the active layer and the gate, an interlayer insulating layer located between the first gate insulating layer and the source and drain electrodes, and a passivation layer located between the source and drain electrodes and the pixel electrode. The active layer has a source contact region, a drain contact region, and a semiconductor region between the source contact region and the drain contact region. The source electrode is connected to the source contact region through a via penetrating the interlayer insulating layer and the first gate insulating layer, and the drain electrode is connected to the drain contact region through a via penetrating the interlayer insulating layer and the first gate insulating layer. The pixel electrode is electrically connected to the drain electrode through a via penetrating the passivation layer. Alternatively, the thin-film transistor can also be a bottom-gate structure, where the active layer is located between the gate and the source / drain. The array substrate further includes: a buffer layer between the first substrate and the gate, a first gate insulating layer between the gate and the active layer, and a passivation layer between the source / drain and the pixel electrode. The source / drain is in direct contact with the active layer, and the pixel electrode is electrically connected to the drain through a via penetrating the passivation layer. Multiple sub-pixels include, for example, multiple red sub-pixels, multiple blue sub-pixels, and multiple green sub-pixels. The opposing substrate includes, for example, a second substrate, a light-shielding layer on the side of the second substrate facing the liquid crystal layer, and multiple color resists. The light-shielding layer includes openings corresponding to each sub-pixel, and the color resists are located within the openings. The multiple color resists include multiple red color resists, multiple blue color resists, and multiple green color resists. The array substrate or opposing substrate also includes a common electrode. When the array substrate includes a common electrode, the common electrode is located, for example, on the side of the pixel electrode facing the liquid crystal layer, or the common electrode is located between the pixel electrode and the source / drain. When the opposing substrate includes a common electrode, the common electrode is located, for example, on the side of the color resist facing the liquid crystal layer.

[0096] In practical implementation, both the side of the array substrate near the liquid crystal layer and the side of the opposing substrate near the liquid crystal layer include alignment layers, meaning the liquid crystal layer is located between the alignment layers of the array substrate and the opposing substrate. The alignment layers of the array substrate and the opposing substrate are used to align the liquid crystal molecules in the liquid crystal layer, so that the liquid crystal molecules have a specific arrangement. In practical implementation, for example, signals can be applied to the common electrode and the pixel electrode to cause the arrangement of the liquid crystal molecules in the liquid crystal layer to change under the action of an electric field. That is, the deflection of the liquid crystal can be controlled by the electric field formed by the common electrode and the pixel electrode. In practical implementation, the common electrode can be arranged across the entire surface, meaning the signals applied to the common electrodes corresponding to different sub-pixels are the same. However, by applying different signals to the pixel electrodes, the light transmittance of the liquid crystal layer corresponding to different sub-pixels can be made different, resulting in each sub-pixel having a different grayscale.

[0097] In some embodiments, such as Figure 1 As shown, the shape of display area 2 is circular.

[0098] It should be noted that in the display device provided in this embodiment, the lamp strip is located between the light guide plate and the first side plate, meaning the light source of the display device is side-lit. For a side-lit light source, the light emitted by the lamp strip enters from the light-incident surface of the light guide plate near the lamp strip. After entering the light guide plate, the light is reflected and diffused before exiting from the light-emitting surface of the light guide plate. The light-emitting surface of the light guide plate is the surface facing the display panel, thus the light can form a surface light source after passing through the light guide plate and be provided to the display panel. In a specific implementation, the lamp strip is linear. Since the lamp strip needs to be assembled with the back plate, the back plate also needs to have a linear portion in the area where the lamp strip and the back plate are assembled. Correspondingly, the first base plate is an N-sided polygon. Since the back plate needs to match the circular display device, N is no longer a regular quadrilateral, meaning the number of sides of the first base plate is greater than 4.

[0099] In practical implementation, to meet the light mixing requirements between the LED strip and the display panel, the distance between the first side panel and the display area cannot be less than a preset value. An assembly gap also needs to be left between the backlight module and the assembly frame. With the size of the display area and the distance between the first side panel and the display area remaining constant, the fewer the number of sides of the back panel, the larger the bezel size of the display device; where the bezel size of the display device is the distance between the outer contour of the assembly frame and the display area. For example... Figure 4 As shown, the outer contour 11' of the assembly frame corresponding to the N1-sided backplate 5' is located outside the outer contour 11 of the assembly frame corresponding to the N2-sided backplate 5, that is, the frame size of the display device of the N1-sided backplate is larger than the frame size of the display device of the N2-sided backplate, where N2 > N1.

[0100] In some embodiments, such as Figure 2 , Figure 3 As shown, the assembly frame 10 includes:

[0101] The first assembly frame 14 includes: a front panel 16 and a second side panel 17 connected to the front panel 16 at the edge of the front panel 16; the front panel 16 covers a portion of the peripheral area 3 on the side of the display panel 1 away from the backlight module 4, and the second side panel 17 is disposed opposite to the side of the display panel 1 and the side of the backlight module 4.

[0102] The second assembly frame 15 includes: a second base plate 18 located between the backlight module 4 and the display panel 1, and a third side plate 19 connected to the edge of the second base plate 18; in the area where two adjacent first side plates 9 are connected, the third side plate 19 is located between the second side plate 17 and the first side plate 9.

[0103] In practical implementation, the shape of the first assembly frame's orthographic projection perpendicular to the display panel is an annulus; that is, the outer contour of the first assembly frame is circular, and the area enclosed by the front panel is also circular. It should be noted that... Figure 1 The outer contour 11 of the middle assembly frame is the outer contour of the first assembly frame.

[0104] In a specific implementation, the shape of the second assembly frame in the orthographic projection perpendicular to the display panel direction can also be an annulus, and the inner and outer contours of the second assembly frame can also be circular, for example.

[0105] In practice, both the first and second assembly frames need to expose the display area to avoid the assembly frames affecting the normal display of the display panel.

[0106] In practice, the first assembly frame is made of materials such as metal or insulating materials, and the insulating material can be, for example, plastic. The second assembly frame is made of materials such as plastic.

[0107] In some embodiments, the number of first side plates is the same as the number of sides of the first base plate. That is, when the number of sides of the first base plate is N, the back plate includes N first side plates, and each side of the first base plate is connected to a first side plate.

[0108] In some embodiments, the shape of the first base plate is a regular N-gon, that is, the length of each side of the first base plate 8 is equal, the width of each first side plate 9 is also equal, and the width of the first side plate is equal to the side length of the first base plate.

[0109] In some embodiments, the following conditions must be met: (where N is rounded up to the nearest integer);

[0110] R1 is the radius of the display area, R2 is the distance between the center of the display area and the outer contour of the first assembly frame, L1 is the minimum distance between the first side plate and the display area, and L2 is the distance between the connection point of two adjacent first side plates and the outer contour of the first assembly frame.

[0111] It should be noted that, given a fixed radius of the display area, if the aforementioned dimension L1 is the minimum value of the minimum distance between the first side plate and the display area, and L2 is the minimum value of the distance between the connection point of two adjacent first side plates and the outer contour of the first assembly frame, then the entire display device can have an extremely narrow frame contour.

[0112] The size of the display device satisfies the limiting dimensions of L1 and L2 mentioned above, that is, as Figure 5 As shown, the distance between the center of the display area and the outer contour of the first assembly frame is R2, and the minimum distance between the edge of the first side plate 9 and the display area is L1. When the shape of the first base plate is a regular polygon, the minimum distance is located at half the width of the first side plate 9, and the distance between the connection point of two adjacent first side plates and the outer contour of the first assembly frame is L2. In this case, as... Figure 5 As shown, the angle corresponding to the edge of the first side plate 9 Since the width of each first side plate is equal, the corresponding angle of each first side plate is also equal. The angle corresponding to the first side plate of the polygon is 2π, therefore satisfying the condition... In some implementations, if the actual distance between the center of the display area and the outer contour of the first assembly frame is less than R2, the minimum distance between the edge of the first side plate 9 and the display area is greater than L1, and the distance between the connection point of two adjacent first side plates and the outer contour of the first assembly frame is greater than L2, then according to the above calculation approach, the number of sides of the first base plate increases accordingly. Therefore, the display device provided in this embodiment of the present disclosure, when This achieves the desired R2 value, meeting the display device assembly size requirements. In practice, given a preset R1 value, the R2 size can be reduced to achieve a narrow bezel display. Furthermore, a simple transformation of the formula yields... The conditions can be used to obtain the number of sides of the polygonal backplate required to achieve a narrow bezel display.

[0113] In some embodiments, L1 is greater than A1; where 2.1×P1≥A1≥1.2×P1, and P1 is the distance between the centers of two adjacent light sources in a light strip.

[0114] In some embodiments, the light source is a light-emitting diode (LED).

[0115] In practical implementation, to ensure the display effect of the display panel, the light strip and the display panel need to meet the light mixing conditions, namely, 2.1 ≥ (distance between light strip and display area / P1) ≥ 1.2, 2.1 × P1 ≥ distance between light strip and display area ≥ 1.2 × P1, and 2.1 × P1 ≥ A1 ≥ 1.2 × P1. This can be understood as the minimum distance between the light strip and the display area that meets the light mixing conditions. Within this range, the light mixing display effect is better for irregularly shaped displays. Considering factors such as the thickness of the light strip and the assembly space between the light strip and the back panel, in this embodiment, L1 is greater than A1.

[0116] In some embodiments, considering process limitations, 6 ≥ P1 ≥ 4.8. In some embodiments, the display device further includes a first printed circuit board electrically connected to the light strip, and thermally conductive adhesive bonding the light strip to a first side plate; the first printed circuit board is connected to the light strip to drive the light strip to emit light. The first printed circuit board is, for example, mounted in the gap between the first base plate and the light guide plate. For example, Figure 2 In the peripheral area 3, a groove area is formed between the first base plate 8 and the first side plate 9, which can accommodate the first printed circuit board.

[0117] In practical implementation, the area with the smallest distance between the first side panel and the display area needs to accommodate at least the first printed circuit board, the light strip, and the thermal conductive adhesive.

[0118] Accordingly, in some embodiments, L1 = A1 + h6 + h7 + h8; h6 is the thickness of the light strip in the direction of the light strip pointing to the first side panel, h7 is the thickness of the thermally conductive adhesive in the direction of the light strip pointing to the first side panel, and h8 is the thickness of the first printed circuit board in the direction of the light strip pointing to the first side panel.

[0119] In practical implementation, the distance between the centers of two adjacent light sources is P2 + 2P3; where P2 is the gap between the two adjacent light sources, and P3 is half the width of the light source in the extension direction of the light strip. All light sources have the same width in the extension direction of the light strip. Considering manufacturing limitations, to avoid increasing the difficulty of manufacturing the light strip, P2 and P3 satisfy the following conditions: P2 ≥ 0.8 mm, P3 ≥ 2 mm. In some embodiments, P1 ≥ 4.8 mm. For example, P1 satisfies 6 mm ≥ P1 ≥ 4.8 mm.

[0120] In some embodiments, to achieve a narrower bezel effect, P1 is 4.8mm, A1 = 1.2 × P1 = 5.76mm, h6 is 0.65mm, h7 is 1mm, and h8 is 0.2mm; therefore, L1 = 7.61mm.

[0121] In some embodiments, such as Figure 1 , 3As shown, at least the first side plate 9, the third side plate 19, and the second side plate 17 need to be accommodated between the connection point of adjacent first side plates 9 and the outer contour 11 of the assembly frame; assembly gaps need to be provided between the first side plate 9 and the third side plate 19, and between the third side plate 19 and the second side plate 17. Accordingly, in some embodiments, L2 = h1 + h2 + h3 + h4 + h5; where h1 is the thickness of the second side plate 17, h2 is the gap between the third side plate 19 and the second side plate 17, h3 is the thickness of the third side plate 19, h4 is the gap between the first side plate 9 and the third side plate 19, and h5 is the thickness of the first side plate 19.

[0122] In some embodiments, to achieve a narrower bezel effect, h1 is 2 mm, h2 is 0.15 mm, h3 is 1 mm, h4 is 0.15 mm, and h5 is 1.2 mm; therefore, L2 = 4.5 mm. Under some process limitations, L2 ≥ 4 mm can be satisfied.

[0123] Based on the practical needs of large-size irregularly shaped display products, a larger number of bezels and narrower bezels result in more assembly components and more complex processes, while a smaller number of bezels and wider bezels result in fewer assembly components and simpler processes. In some embodiments, (R2-R1) / R1 is greater than or equal to 0.045 and less than or equal to 0.114.

[0124] In some embodiments, the display device further includes: a plurality of rectifiers; each rectifier is electrically connected to an even number of LED strips. This ensures the uniformity of current and voltage distribution from the rectifiers to the LED strips, avoiding uneven brightness among different LED strips.

[0125] In practice, the rectifier is electrically connected to the light strip via the first printed circuit board.

[0126] In some embodiments, the display device includes two rectifiers and a plurality of light strips to achieve uniform light mixing, wherein each side panel is provided with a corresponding light strip, the light strips correspond one-to-one with the first side panel, and the number of the first side panels is a multiple of 4.

[0127] It should be noted that assembly gaps need to be left between structures such as the display panel, backlight module, and assembly frame. Furthermore, components such as the backlight module and assembly frame have a certain thickness. Considering the assembly difficulty and manufacturing cost of each part, although the larger the number of sides of the first base plate, the smaller the bezel size of the display device, it is still necessary to consider its upper limit when increasing the number of sides of the first base plate.

[0128] In some embodiments, such as Figure 6 , Figure 7 As shown, the display panel 1 includes multiple straight edges 31 and multiple curved edges 32.

[0129] In some embodiments, such as Figure 6 , Figure 7 As shown, the display device also includes:

[0130] Multiple flip-chip thin-film circuit boards 33 are bonded to the display panel 1 in the peripheral area of ​​at least a portion of the straight edge 31.

[0131] It should be noted that, Figure 6 , Figure 7 The following description uses a display panel 1 comprising six straight edges 31 and four curved edges 32 as an example. Multiple flip-chip circuit boards 33 correspond to two of the straight edges 31. The two ends of the curved edges 32 are connected to the straight edges 31 respectively. The two straight edges 31 corresponding to the flip-chip circuit boards 33 are connected by the straight edges 31. A single straight edge 31 can be bound to at least one flip-chip circuit board 33, and multiple flip-chip circuit boards 33 can also be bound to a single straight edge 31. For example, a single straight edge can bind 2, 3, 4, or more flip-chip circuit boards. The number of flip-chip circuit boards that can be bound to a single straight edge 31 is related to factors such as the resolution of the entire display device.

[0132] It should be noted that the display device provided in this embodiment has a curved edge on the display panel. During the manufacturing process of the display panel, since the substrate of the array substrate and the substrate of the opposing substrate are usually glass substrates, when a cutting process is required, the glass substrate in the area corresponding to the curved edge does not need to start cutting and change the angle. Compared with the all-straight edge cutting design, it can save the overall cutting process time and improve the manufacturing efficiency of the display device.

[0133] It should be noted that, Figure 6 , Figure 7 The diagram illustrates a state where the flip-chip thin-film circuit board is bonded to the display panel but not assembled with the backlight module or assembly frame.

[0134] In practice, the flip-chip circuit board needs to be bent to the back of the first substrate. At least a portion of the flip-chip circuit board is bent along the first side panel. Preferably, the entire flip-chip circuit board is bent along the first side panel. Therefore, the side length of the straight edge where the flip-chip circuit board is bonded is less than or equal to the width of the first side panel.

[0135] In some embodiments, it is necessary to satisfy Wherein, if the formula is used to obtain and optimize the number of sides of the first base plate through simple deformation, then N is rounded down to the nearest integer; L3 is the width of the flip-chip thin film circuit board in the direction of the straight edge extension, n is the number of flip-chip thin film circuit boards bonded to a straight edge; L4 is the gap between adjacent flip-chip thin film circuit boards bonded to a straight edge; L5 is set as the distance between the flip-chip thin film circuit board closest to the bonded straight edge end and the straight edge end.

[0136] In some embodiments, such as Figure 6 As shown, at least part of the peripheral area 3 of the straight edge 31 is bonded to only one flip-chip thin film circuit board 33.

[0137] When a straight line edge corresponds to only one flip-chip circuit board, the minimum value of that straight line edge is L3 + 2L5. In this case, the minimum width of the first side panel is L3, and a1 = a2. Since a1 = π / N, where a is the central angle corresponding to the straight line edge to which the flip-chip circuit board is bonded, and a2 is half of the included angle a, in the extreme case, since the side length of the straight line edge to which the flip-chip circuit board is bonded is less than or equal to the width of the first side panel, it is necessary to satisfy...

[0138] In some embodiments, such as Figure 7 As shown, at least part of the peripheral region 3 of the straight edge 31 is bonded to two flip-chip thin film circuit boards 33.

[0139] When a straight edge corresponds to two flip-chip thin-film circuit boards, the minimum value of this straight edge is 2L3 + L4. In the extreme case, the width of the first side panel is 2L3 + L4, and a1 = a2. Since a1 = π / N, in this case, because the side length of the straight edge bound to the flip-chip thin-film circuit board is less than or equal to the width of the first side panel, N needs to satisfy...

[0140] In some embodiments, P1 is 6 mm, A1 = 2.1 × P1 = 12.6 mm, h6 is 0.65 mm, h7 is 1 mm, and h8 is 0.2 mm; therefore, L1 = 14.5 mm.

[0141] In some embodiments, the width of a single flip-chip thin-film circuit board is 42 mm. Considering bonding process limitations, L4 ≥ 15 mm.

[0142] The distance between the flip-chip thin-film circuit board and the edge of its corresponding straight edge is 10mm.

[0143] In some embodiments, such as Figure 6 , Figure 7 As shown, the display device also includes a plurality of second printed circuit boards 34 bonded to the flip-chip thin film circuit board 33.

[0144] In specific implementation, such as Figure 8 As shown, the flip-chip thin film circuit board 33 bends toward the back plate 5 away from the display panel through the gap between the first assembly frame 14 and the second assembly frame 15.

[0145] In some embodiments, such as Figure 8As shown, on the side of the first base plate away from the display panel, the back plate 5 has a plurality of first grooves 35 recessed toward the display panel side, and the first grooves 35 accommodate the second printed circuit board 34.

[0146] In some embodiments, such as Figure 9 As shown, the display device also includes a cover 40 that covers the second printed circuit board 34 and the flip-chip thin film circuit board 33 on the side of the back plate 5 away from the display panel.

[0147] In some embodiments, such as Figure 8 , 9 As shown, the second assembly frame 15 includes alignment marks 38 that correspond one-to-one with the cover 40;

[0148] The alignment mark 38 includes two alignment mark lines 39 that are parallel to a pair of sides of the cover 40, and the pair of sides of the cover 40 overlap with the alignment mark lines 39.

[0149] The display device provided in this embodiment protects the second printed circuit board and the flip-chip thin film circuit board by providing a cover on the side of the back panel away from the display panel, and provides alignment marks on the second assembly frame. When the cover is assembled with the back panel and the assembly frame, the alignment marks can be used for assembly alignment to avoid assembly deviation.

[0150] It should be noted that, Figure 8 , Figure 9 Only a portion of the display device is shown.

[0151] In some embodiments, the cover is attached to the second assembly frame and the back panel via adhesive material;

[0152] The thickness of the adhesive material between the second assembly frame and the cover is greater than the thickness of the adhesive material between the back plate and the cover.

[0153] It should be noted that there is a step difference between the second assembly frame and the flip-chip thin film circuit board. When the cover is attached to the second assembly frame and the back plate using adhesive of uniform thickness, unevenness may occur when attaching to the second assembly frame, which may cause problems such as the cover lifting up.

[0154] In the display device provided in this embodiment, the thickness of the adhesive material between the second assembly frame and the cover is greater than the thickness of the first adhesive material between the back plate and the cover, thereby eliminating assembly gaps through the adhesive material and avoiding the problem of uneven application of the cover.

[0155] In some embodiments, the adhesive material includes: a first adhesive material applied to the cover and a second adhesive material located on the side of the first adhesive material opposite to the cover;

[0156] The second adhesive material is at least attached to the second assembled frame.

[0157] In the display device provided in this embodiment, in the area where the second assembly frame and the adhesive material are attached, in addition to using a composite adhesive material composed of the first adhesive material and the second adhesive material to assemble the cover and the second assembly frame, the assembly step difference is eliminated by the adhesive material, thereby avoiding the problem of uneven attachment of the cover.

[0158] In specific implementation, such as Figure 10 As shown, areas A and B are the areas where adhesive material is applied to the cover. In a specific implementation, area A corresponds to the area to which it is attached to the second assembly frame, and area B corresponds to the area to which it is attached to the back panel. In area B, the cover can be attached to the back panel using only the first adhesive material, while in area A, the cover is attached to the second assembly frame using both the first and second adhesive materials.

[0159] In some embodiments, such as Figure 11 As shown, the display device also includes: a controller 41 assembled with the back plate 5 on the side opposite to the display panel, and a plurality of flexible circuit boards 37; one end of the flexible circuit board 37 is connected to the controller 41, and the other end of the flexible circuit board 37 is connected to the second printed circuit board 34.

[0160] like Figure 12a As shown, the flexible circuit board 37 is bonded to the back plate via the third adhesive material 42.

[0161] It should be noted that, as Figure 12b As shown, the flexible circuit board is rectangular. The rectangular flexible circuit board is bent along the bending line 43, and the state after bending is as follows. Figure 12a As shown, this achieves the desired heterogeneous interface through two bends. Furthermore, in Figure 12a , Figure 12b The area shown is provided with a third adhesive material 42 so that the flexible circuit board 37 is bonded to the backplate via the third adhesive material 42. In a specific implementation, the third adhesive material is, for example, double-sided adhesive. In a specific implementation, it can be applied to the flexible circuit board and... Figure 12a , Figure 12b Double-sided adhesive is applied to the area corresponding to the third adhesive material 42. For example, after the flexible circuit board is bent along the bend line, double-sided adhesive is applied to the area of ​​the flexible circuit board facing the back plate and near both ends of the flexible circuit board. Then, the flexible circuit board is attached to the back plate, so that the areas at both ends of the flexible circuit board are bonded to the back plate through the double-sided adhesive. Of course, double-sided adhesive can also be applied to the back plate, and after the flexible circuit board is bent, it is attached to the back plate, so that the areas near both ends of the flexible circuit board are bonded to the back plate through the double-sided adhesive. The area on the back plate where double-sided adhesive is applied can be, for example, with... Figure 12a , Figure 12b The area corresponding to the third adhesive material 42 in the middle corresponds to this. Both of the above methods of applying double-sided adhesive can enable the flexible circuit board to be bonded to the backing plate via double-sided adhesive.

[0162] In practice, drive signals can be applied to the display panel through a controller, a flexible circuit board, a second printed circuit board, and a flip-chip thin film circuit board.

[0163] It should be noted that, Figure 11 Only a portion of the display device is shown.

[0164] In some embodiments, such as Figure 2 , Figure 13 , Figure 14 , Figure 15 As shown, the back panel also includes:

[0165] Multiple first connectors 21 are integrally connected to the first side plates 9 outside the connection points of two adjacent first side plates 9, for fixing to the assembly frame 10.

[0166] The display device provided in this embodiment has a first connector integrally connected to a first side plate 9. The first connector, integrally connected to the side plate, is fixed to the assembly frame, thus eliminating the need for an additional component to fix the back plate to the assembly frame, saving costs and streamlining the display device manufacturing process. Furthermore, the integral connection of the first connector to the first side plate also improves the strength of the back plate.

[0167] In some embodiments, the distances between the two ends of the first connector and the edge of the first side panel are equal. That is, the first connector is connected in the middle of the first side panel, so that the first connector is located in the area with the greatest distance between the first side panel and the outer contour of the assembly frame, thereby reducing the assembly difficulty of the back panel and the assembly frame while achieving a narrow bezel.

[0168] In some embodiments, such as Figure 2 , Figure 13 , Figure 14 , Figure 15 As shown, the first connector 21 includes a first connecting portion 24 that is parallel to the plane of the first base plate.

[0169] In some embodiments, such as Figure 2 , Figure 13 , Figure 14 As shown, the first connecting portion 24 includes a first opening 28;

[0170] The first assembly frame 14 includes a first rivet 30 corresponding to a first opening 28. In the region of the first opening 28, the first rivet 30 is fixed to the first connecting part 24 by a first screw 26.

[0171] In some embodiments, such as Figure 2 , Figure 14 As shown, the second assembly frame 15 also includes a second opening 46 that at least avoids the opening of the first rivet 30.

[0172] In some embodiments, such as Figure 2 As shown, the second opening 46 avoids the first rivet post 30.

[0173] It should be noted that for a circular display device, both the first assembly frame and the second assembly frame have circular outlines, making them difficult to assemble. In the display device provided in this embodiment, the second assembly frame includes a second opening that at least avoids the opening of the first rivet. That is, when the first assembly frame and the second assembly frame are assembled, the first rivet can pass through the second opening, facilitating assembly and subsequently allowing the back plate to be fixed to the assembly frame via the first rivet.

[0174] Alternatively, in some embodiments, such as Figure 14 As shown, the first rivet 30 has an opening 63, and the second opening 46 only avoids the opening 63 of the first rivet 30.

[0175] In practice, the second opening can also be a threaded opening, so that the first connecting part, the second assembly frame and the first assembly frame can be fixed by the first screw.

[0176] In practice, depending on the location of the first rivet, the second opening can be circular, etc. Figure 14 The opening of the closed figure shown. Alternatively, it can be as follows: Figure 2 As shown, a second opening 46 is formed by removing a portion of the area at the edge of the second assembly frame 15.

[0177] In some embodiments, such as Figure 2 , Figure 13 As shown, the first connector 21 further includes a second connecting portion 23 and a third connecting portion 22; the third connecting portion 22 is connected to the first side plate 9, and both ends of the second connecting portion 23 are connected to the third connecting portion 22 and the first connecting portion 24 respectively. The first connecting portion 24 is parallel to the third connecting portion 22, and the second connecting portion 23 is parallel to the first side plate 9. That is, the first connector 21 includes the first connecting portion 24, the second connecting portion 23, and the third connecting portion 22 connected in sequence.

[0178] like Figure 2 As shown, the first connector 21, the first side plate 9, and the first bottom plate 8 form a three-fold structure.

[0179] In some embodiments, such as Figure 2 , Figure 13 As shown, the third connecting part 22 includes a third opening 27;

[0180] The second assembly frame 15 includes a threaded opening 29 that corresponds one-to-one with the third opening 27. In the area of ​​the third opening 27 and the threaded opening 29, the third connecting part 22 is fixed to the second assembly frame 15 by a second screw 25.

[0181] In practical implementation, the first and third openings are threaded openings. A threaded opening means that the component has threads on the side of the opening area, so that it can be screwed in with a screw.

[0182] Alternatively, in some embodiments, such as Figure 14 , Figure 15 As shown, the first connecting part 24 is connected to the first side plate 9.

[0183] In some embodiments, such as Figure 14 As shown, the first connector 21 only includes the first connecting portion 24. That is, the assembly frame is fixed to the first connector 21, which only includes the first connecting portion 24, by the first screw 26.

[0184] It should be noted that the first connector can be formed using a bending process. In the display device provided by this embodiment, when the first connector only includes a first connecting portion, it only requires one bending to form the first connector, reducing the number of bending mold processes, lowering mold costs, and improving backplate production efficiency. Because only one bending is required, product yield can also be improved, avoiding dimensional deviations caused by secondary bending. Furthermore, in the area corresponding to the first connector, only one screw is needed to fix the backplate to the assembly frame, reducing the number of parts, saving costs, and minimizing installation errors.

[0185] In some embodiments, such as Figure 15 As shown, the first connector 21 also includes a first buckle 61 located on the side of the first connector 24 near the second assembly frame 15;

[0186] The second assembly frame 15 includes a first snap-fit ​​opening 62 that corresponds one-to-one with the first buckle 61, and the first buckle 61 snaps into the second assembly frame 15 through the first snap-fit ​​opening 62.

[0187] The display device provided in this embodiment includes a first connecting part and a first buckle. The first connecting part is connected to the first side plate, so that the first connecting part can be formed by only one bend, which can reduce the number of bending mold processes, reduce mold costs, and improve the production efficiency of the back plate. Since only one bend is required, the product yield can also be improved, and dimensional deviations caused by secondary bending can be avoided. Furthermore, the first buckle is used to engage with the second assembly frame, which is simple to operate and can save screws, further reducing costs.

[0188] In some embodiments, such as Figure 13 As shown, the first side plate 9 includes at least one first bend portion 44 that bends toward the light strip 7, and the light strip 9 is located between the bend portion 44 and the first base plate 8.

[0189] This allows the height of the light strip to be limited and fixed by the first bend, preventing any deviation in the position of the first light strip from affecting the display effect.

[0190] It should be noted that, Figure 13 The example provided illustrates the concept of a first connecting member comprising a first connecting portion, a second connecting portion, and a third connecting portion. Of course, in actual implementation, when the first connecting member comprises only the first connecting portion or comprises both the first connecting portion and the first buckle, a first bending portion can also be provided on the first side plate; this will not be elaborated upon here.

[0191] In some embodiments, such as Figure 13 As shown, the first side plate 9 includes two first bends 44. The two first bends 44 are located on both sides of the connection between the first connecting part 21 and the first side plate 9, and of course, the number of first bends provided in each first side plate is not limited to this.

[0192] It should be noted that, Figure 13 Only a portion of the back panel and light strip is shown in the image.

[0193] In some embodiments, the second side plate includes a plurality of second buckles, and the third side plate includes a second snap-fit ​​opening corresponding to each of the second buckles, wherein the second buckles snap into the third side plate through the second snap-fit ​​opening.

[0194] In some embodiments, the flip-chip thin-film circuit board is bent along the first side plate;

[0195] The first connector connects only to the first side panel of the non-corresponding flip-chip thin-film circuit board.

[0196] It should be noted that, since bending the flip-chip circuit board requires space, it is difficult to provide an integrally connected first connector for the first side panel of the flip-chip circuit board. Therefore, the display devices provided in some embodiments of this disclosure do not provide an integrally connected first connector for the first side panel of the flip-chip circuit board.

[0197] In some embodiments, the display device includes K second printed circuit boards, where K is an integer greater than 1 and less than N; each second printed circuit board is connected to at least one flip-chip thin film circuit board, and each second printed circuit board corresponds to a first side plate.

[0198] The backplate may include NK first connectors.

[0199] In some embodiments, such as Figure 16 , Figure 17 As shown, the back panel also includes:

[0200] Multiple second connectors 45 are connected to the first side plate 9 corresponding to the flip-chip thin film circuit board 33 in the area outside the bending area of ​​the flip-chip thin film circuit board 33; the second connectors 45 are used to fix the first connecting frame 14.

[0201] The area corresponding to the flip-chip thin-film circuit board is fixed to the assembly frame by a second connector.

[0202] In some embodiments, such as Figure 16 As shown, the second connector 45 includes: a fourth connector 47 that is bent and connected to the first side plate 9, and a fifth connector 48 that is connected to the fourth connector 47;

[0203] The fifth connecting part 48 has a fourth opening 49;

[0204] The first assembly frame has a second rivet that corresponds one-to-one with the fourth opening 49 and passes through the fourth opening 49; in the fourth opening, the second connecting part 45 is fixed to the second rivet by a third screw 50.

[0205] In practice, the fourth opening can also be a threaded opening.

[0206] In some embodiments, the second assembly frame has a fifth opening that avoids the second rivet. The display device provided in this disclosure includes a second assembly frame with a fifth opening that avoids the second rivet, meaning that when the first assembly frame and the second assembly frame are assembled, the second rivet can pass through the fourth opening, facilitating assembly and subsequently allowing the second connecting portion to be fixed to the assembly frame via the second rivet.

[0207] In some embodiments, such as Figure 18 As shown, the first base plate on the side opposite to the display panel also includes: an annular protrusion 51, a pair of oppositely arranged first strip protrusions 52, and a pair of oppositely arranged second strip protrusions 53; the center of the annular protrusion 51 coincides with the center of the display area; the first strip protrusions 52 and the second strip protrusions 53 intersect, the annular protrusion 51 is located between the pair of oppositely arranged first strip protrusions 52, and the annular protrusion 51 is located between the pair of oppositely arranged second strip protrusions 53;

[0208] The display device also includes: an annular reinforcing rib 54 located on the side of the annular protrusion 51 facing away from the display panel, a first strip reinforcing rib 55 located on the side of the first strip protrusion 52 facing away from the display panel, and a second strip reinforcing rib 56 located on the side of the second strip protrusion 53 facing away from the display panel.

[0209] The display panel provided in this embodiment improves the support strength of the back panel by setting a first strip reinforcing rib and a second strip reinforcing rib, and further improves the support strength of the back panel by setting an annular reinforcing rib, while ensuring the flatness of the back panel.

[0210] In some embodiments, such as Figure 19 As shown, the display device also includes:

[0211] The mirror cover 57 is located on the side of the front panel 16 opposite to the display panel 1.

[0212] The display device provided in this embodiment has a mirror cover, which can be used as a mirror when the LED strip of the display product is turned off, thus enriching the function of the display device and increasing its practicality.

[0213] In practical implementation, the mirror cover is made of pure circular non-tempered glass, with a thickness of, for example, 1.8 mm. For example, the mirror cover has a transmittance of 30% and a reflectance of 70%. In practical implementation, such as... Figure 16 As shown, a groove can be provided on the front panel to define the position of the mirror cover. The depth of the groove on the front panel is, for example, 2mm.

[0214] In some embodiments, such as Figure 19 As shown, the display device also includes:

[0215] The first optical film 58 is located between the front panel 16 and the display panel 1;

[0216] The sealing adhesive 59 connects the front panel 16 and the first optical film 58 at the edge of the front panel 16 near the display area.

[0217] The adhesive 60 is located between the first optical film 58 and the mirror cover plate 57 in the area surrounded by the front panel 16.

[0218] The display device provided in this embodiment of the present disclosure seals the edge of the front panel with a sealing adhesive, thereby preventing the adhesive from flowing into other gaps.

[0219] In some embodiments, such as Figure 2 , Figure 3 As shown, the backlight module 4 further includes: a reflective sheet 12 located between the first base plate 8 and the light guide plate 6; the display device further includes a second optical film 13 located between the light guide plate 6 and the frame 18; as shown Figure 3 As shown, the back plate 5 also includes a second rivet 20 connected to the first base plate 8; the reflector 12 and the second optical film 13 have openings to avoid the second rivet 20, thereby defining the positions of the reflector 12 and the second optical film 13 by the second rivet 20.

[0220] In practical implementation, both the first and second optical films include, for example, polarizers. Thus, light emitted from the light guide plate towards the second optical film becomes polarized light after passing through the second optical film. When the electric field generated between the common pixel electrode and the common electrode controls the deflection of liquid crystal molecules in the liquid crystal layer, it can affect the polarization state of the polarized light incident on the liquid crystal display panel from the second optical film. Under the influence of the polarizer in the first optical film, the light can produce changes in the intensity of the emitted light, thereby displaying brightness and darkness to present an image.

[0221] The display device provided in this disclosure is any product or component with a display function, such as a watch, monitor, digital photo frame, or navigator. Other essential components of this display device are those that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0222] In summary, the display device provided in this disclosure reduces the distance between the display area and the outer contour of the assembly frame, reduces the bezel size, and improves the display effect.

[0223] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0224] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Therefore, if these modifications and variations to the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A display device, wherein, The display device includes: The display panel includes a display area, a peripheral area surrounding the display area, multiple straight edges, and multiple curved edges; A backlight module, located on the light-incident side of the display panel, includes: a back plate, a light guide plate, and multiple light strips; the back plate includes: a polygonal first base plate, and multiple first side plates connected to the first base plate at its edge; the light guide plate is located between the first base plate and the display panel, and the light strips are located between the first side plates and the light guide plate; An assembly frame is assembled with the display panel and the backlight module at their edges, and the outer contour of the assembly frame is circular. Multiple flip-chip thin-film circuit boards are bonded to the display panel in the peripheral area of ​​at least a portion of the straight edge; The number N of the edges of the first bottom plate satisfies the following condition: where N is a down-rounding number; L1 is the minimum distance between the first side plate and the display area, L3 is the width of the chip on film circuit board in the direction of the straight edge extension, n is the number of the chip on film circuit boards bound by one straight edge, and L4 is the gap between the adjacent chip on film circuit boards bound by one straight edge.

2. The display device according to claim 1, wherein The assembly frame includes: The first assembly frame includes: a front panel and a second side panel connected to the front panel at the edge of the front panel; the front panel covers a portion of the peripheral area on the side of the display panel away from the backlight module, and the second side panel is disposed opposite to the side of the display panel and the side of the backlight module. The second assembly frame includes: a second base plate located between the backlight module and the display panel, and a third side plate connected to the second base plate at the edge of the second base plate; in the area where two adjacent first side plates are connected, the third side plate is located between the second side plate and the first side plate.

3. The display device according to claim 2, wherein, The display area is circular in shape; (R2-R1) / R1 is greater than or equal to 0.045 and less than or equal to 0.

114. The radius of the display area is [missing information]. The distance between the center of the display area and the outer contour of the first assembly frame.

4. The display device according to claim 2 or 3, wherein, The back plate also includes: Multiple first connectors are integrally connected to the first side panels outside the connection points between two adjacent first side panels, for fixing to the assembly frame.

5. The display device according to claim 4, wherein, The first connector includes a first connecting portion that is parallel to the plane of the first base plate; The first connecting portion includes a first opening; The first assembly frame includes a first rivet post corresponding to the first opening, and the first rivet post and the first connecting part are fixed in the area of ​​the first opening by a first screw.

6. The display device according to claim 5, wherein, The second assembly frame also includes a second opening that at least avoids the opening of the first rivet.

7. The display device according to claim 5 or 6, wherein, The first connecting part is connected to the first side plate.

8. The display device according to claim 5 or 6, wherein, The first connector further includes a second connecting part and a third connecting part; the third connecting part is connected to the first side plate, and the two ends of the second connecting part are respectively connected to the third connecting part and the first connecting part, the first connecting part is parallel to the third connecting part, and the second connecting part is parallel to the first side plate.

9. The display device according to claim 8, wherein, The third connecting portion includes a third opening; The second assembly frame includes threaded openings that correspond one-to-one with the third opening. In the area of ​​the third opening and the threaded opening, the third connecting part is fixed to the second assembly frame by a second screw.

10. The display device according to claim 5, wherein, The first connector includes: a first connecting portion parallel to the plane of the first base plate and connected to the first side plate, and a first buckle located on the side of the first connecting portion near the second assembly frame; The second assembly frame includes a first snap-fit ​​opening that corresponds one-to-one with the first buckle, and the first buckle snaps into the second assembly frame through the first snap-fit ​​opening.

11. The display device according to claim 4, wherein, The display device includes a plurality of flip-chip thin-film circuit boards, which are bent along the first side plate; The first connector is only connected to the first side plate that does not correspond to the flip-chip circuit board.

12. The display device according to claim 11, wherein, The display device includes K second printed circuit boards, where K is an integer greater than 1 and less than N, and N is the number of sides of the first base plate; Each of the second printed circuit boards is connected to at least one of the said flip-chip thin film circuit boards, and each of the second printed circuit boards corresponds to one of the first side panels; The backplate includes NK of the first connectors.

13. The display device according to claim 11, wherein, The back plate also includes: Multiple second connectors are connected to the first side plate corresponding to the flip-chip thin film circuit board in areas outside the bending area of ​​the flip-chip thin film circuit board; the second connectors are used to fix the first connecting frame.

14. The display device according to claim 13, wherein, The second connector includes: a fourth connecting part that is bent and connected to the first side plate, and a fifth connecting part that is connected to the fourth connecting part; The fifth connecting portion has a fourth opening; The first assembly frame has a second rivet that corresponds one-to-one with the fourth opening and passes through the fourth opening; in the fourth opening, the second connecting part of the first connector is fixed to the second rivet by a third screw; The second assembly frame has a fifth opening to avoid the second rivet post.

15. The display device according to claim 1, wherein, The first side plate includes at least one first bend portion that bends toward one side of the light strip, and the light strip is located between the bend portion and the first base plate.

16. The display device according to claim 1, wherein, At least a portion of the peripheral area of ​​the straight edge is bonded to the two flip-chip circuit boards.

17. The display device according to claim 1, wherein, At least a portion of the peripheral area of ​​the straight edge is bonded to only one of the flip-chip circuit boards.

18. The display device according to claim 1, wherein, The display device further includes: a plurality of rectifiers; each of the rectifiers is electrically connected to an even number of light strips.

19. The display device according to claim 18, wherein, The display device includes two rectifiers, the light strips correspond one-to-one with the first side plate, and the number of sides N of the first base plate is a multiple of 4.

20. The display device according to claim 1, wherein, The display device also includes a plurality of second printed circuit boards bonded to the flip-chip thin-film circuit board; The flip-chip thin-film circuit board bends toward the back plate away from the display panel through the gap between the first assembly frame and the second assembly frame; The back plate has a plurality of first grooves recessed toward one side of the display panel, the first grooves accommodating the second printed circuit board; The display device further includes: a cover covering the second printed circuit board and the flip-chip thin film circuit board on the side of the back plate opposite to the display panel; The second assembly frame includes alignment marks that correspond one-to-one with the cover; The alignment marks include two alignment mark lines that are parallel to a pair of sides of the cover, and the pair of sides of the cover overlap with the alignment mark lines.

21. The display device according to claim 20, wherein, The cover is attached to the second assembly frame and the back panel by adhesive material; The thickness of the adhesive material between the second assembly frame and the cover is greater than the thickness of the adhesive material between the back plate and the cover.

22. The display device according to claim 21, wherein, The adhesive material includes a first adhesive material that is attached to the cover and a second adhesive material located on the side of the first adhesive material that is opposite to the cover. The second adhesive material is at least attached to the second assembly frame.

23. The display device according to claim 20, wherein, The display device further includes: a controller assembled with the back panel on the side of the back panel opposite to the display panel, and a plurality of flexible circuit boards; one end of the flexible circuit board is connected to the controller, and the other end of the flexible circuit board is connected to the second printed circuit board; The flexible circuit board is bonded to the back plate via a third adhesive material.

24. The display device according to claim 1, wherein, The first base plate on the side opposite to the display panel further includes: an annular protrusion, a pair of opposing first strip protrusions, and a pair of opposing second strip protrusions; the center of the annular protrusion coincides with the center of the display area; the first strip protrusions and the second strip protrusions intersect, the annular protrusion is located between the pair of opposing first strip protrusions, and the annular protrusion is located between the pair of opposing second strip protrusions; The display device further includes: an annular reinforcing rib located on the side of the annular protrusion away from the display panel, a first strip reinforcing rib located in the first strip protrusion away from the display panel, and a second strip reinforcing rib located on the side of the second strip protrusion away from the display panel.

25. The display device according to claim 2, wherein, The display device further includes: A mirror cover is located on the side of the front panel opposite to the display panel.

26. The display device according to claim 25, wherein, The display device further includes: A first optical film is located between the front panel and the display panel; A sealing adhesive is used to connect the front panel and the first optical film at the edge of the front panel near the display area. The adhesive is applied in the area surrounded by the front panel between the first optical film and the mirror cover.

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