Display module and display device

Abstract

The utility model provides a display module and a display device, and the display module comprises a backboard, a rubber frame, and a plurality of light-emitting units. The back plate comprises a bottom plate and side plates vertically arranged around the periphery of the bottom plate; the first end of a first side plate in the side plates is bent inwards to form a bent groove, and the light-emitting unit is arranged in the bent groove. The first end is the end, away from the bottom plate, of the first side plate. The rubber frame is located on the inner side of the side plate, and the two ends of the rubber frame are connected with the two ends of the bending groove in the circumferential direction. The light-emitting angle of the light-emitting unit is alpha, and the distance between the light-emitting surface of the light-emitting unit and the end surface of the first end of the first side plate is h; for any end of the bending groove in the circumferential direction, the distance d between the end face of the end and the light-emitting unit closest to the end meets dgt; h * tan alpha. According to the display module provided by the embodiment of the invention, the light leakage condition of the display module can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] A Liquid Crystal Display Module (LCM) primarily consists of an LCD panel and a backlight. In related technologies, the display module bends a portion of the side panels of the Printed Circuit Board Assembly (PCBA) toward the active display area to support the glass. This allows the frame adhesive on the remaining three sides of the display module to support the glass.

[0003] The plastic frame is usually assembled on the back panel, but due to process errors and other reasons, there will be a gap between the plastic frame and the bend of the back panel. After the backlight source is illuminated, the light emitted by the light-emitting unit is reflected in the gap between the plastic frame and the back panel, resulting in light leakage. Utility Model Content

[0004] In view of this, embodiments of the present application provide a display module and a display device for reducing light leakage in the display module.

[0005] In a first aspect, an embodiment of the present application provides a display module, the display module comprising: a back plate, a plastic frame, and a plurality of light-emitting units;

[0006] The back plate includes a bottom plate and side plates vertically arranged around the bottom plate;

[0007] The first end of the first side plate of the side plates is bent inward to form a bending groove, and the light emitting unit is arranged in the bending groove; the first end is the end of the first side plate away from the bottom plate;

[0008] The rubber frame is located on the inner side of the side plate, and the two ends of the rubber frame are connected to the two ends of the bending groove in the circumferential direction;

[0009] The light emitting angle of the light emitting unit is α, and the distance between the light emitting surface of the light emitting unit and the end face of the first end of the first side plate is h; for any end of the bending groove in the circumferential direction, the distance d between the end face of the end and the light emitting unit closest to the end satisfies d>h*tanα.

[0010] By adopting the above embodiment, light leakage of the display module can be reduced, thereby improving the display quality.

[0011] In a possible implementation manner of the first aspect, a printed circuit board is disposed above the bending groove, and the printed circuit board is bent above the bending groove to a side of the bottom plate away from the side plate.

[0012] By adopting the above embodiment, the effective display area can be increased, thereby increasing the screen-to-body ratio of the display device while reducing black edges.

[0013] In a possible implementation manner of the first aspect, the plastic frame and the printed circuit board are covered with a liquid crystal box.

[0014] By adopting the above embodiment, the plastic frame can support the liquid crystal box, thereby improving the reliability of the display module.

[0015] In a possible implementation manner of the first aspect, the plastic frame and the back plate are fixed together by snapping.

[0016] By adopting the above embodiment, assembly and maintenance can be facilitated.

[0017] In a possible implementation manner of the first aspect, the light emitting unit is located at the bottom of the bending groove.

[0018] By adopting the above embodiment, side-lighting can be achieved and light leakage can be reduced.

[0019] In a possible implementation manner of the first aspect, a light guide plate and an optical film are further disposed in the bending groove.

[0020] By setting up a light guide plate, the amount of light entering the light guide plate can be increased. An optical film can be set above the light guide plate to make the light uniform.

[0021] In a possible implementation manner of the first aspect, a reflective sheet is disposed between the light guide plate and the bottom plate.

[0022] By providing a reflective sheet, the utilization rate of light can be improved.

[0023] In a possible implementation manner of the first aspect, a thickness of the plastic frame on a side close to the effective display area is smaller than a thickness of the plastic frame on a side away from the effective display area.

[0024] By adopting the above embodiment, not only can the liquid crystal box be limited, but also the material cost can be reduced.

[0025] In a possible implementation manner of the first aspect, the bottom plate and the side plate are integrally formed.

[0026] By adopting the above embodiment, not only the structure can be simplified, but also light leakage can be reduced.

[0027] In a second aspect, an embodiment of the present application provides a display device, comprising: a housing and a display module as described in the first aspect or any embodiment of the first aspect.

[0028] Since the display device in this embodiment includes the display module in the above embodiment, the display device in this embodiment has all the technical features and technical effects of the above display module embodiments.

[0029] The embodiments of the present application provide a display module and a display device, wherein the display module includes: a back panel, a plastic frame, and a plurality of light-emitting units; the back panel includes a bottom panel and side panels vertically arranged around the bottom panel; the first end of the first side panel of the side panels is bent inward to form a bending groove, and the light-emitting unit is arranged in the bending groove; the first end is the end of the first side panel away from the bottom panel; the plastic frame is located on the inner side of the side panel, and the two ends of the plastic frame are connected to the two ends of the bending groove in the circumferential direction; the light-emitting angle of the light-emitting unit is α, and the distance between the light-emitting surface of the light-emitting unit and the end face of the first end of the first side panel is h; for any end of the bending groove in the circumferential direction, the distance d between the end face of the end and the light-emitting unit closest to the end satisfies d>h*tanα. The display module provided by the embodiments of the present application can reduce the occurrence of light leakage in the display module.

[0030] The beneficial effects of the display device provided by the second aspect and its possible implementations can refer to the beneficial effects brought about by the first aspect and its possible implementations, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A partial schematic diagram of a display module provided in an embodiment of the present application;

[0032] Figure 2 The embodiment of this application provides Figure 1 Schematic cross-sectional view along line AA'.

[0033] Description of reference numerals:

[0034] 1-back panel; 11-bottom panel; 12-side panel; 121-first side panel; 13-bending groove;

[0035] 2-plastic frame; 3-light-emitting unit; 4-light guide plate; 5-optical film; 6-reflective sheet. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] Figure 1 A partial schematic diagram of a display module provided in an embodiment of the present application. Figure 2 The embodiment of this application provides Figure 1 Schematic diagram of the cross section along line AA'. Figure 1 and Figure 2 The display module may include a back panel 1 , a plastic frame 2 and a plurality of light-emitting units 3 .

[0038] The back panel 1 may include a base panel 11 and side panels 12 vertically arranged around the base panel 11. The back panel 1 may be made of metal to improve heat dissipation efficiency. The base panel 11 and the side panels 12 may be integrally formed, which not only simplifies the structure but also reduces light leakage. The first end of the first side panel 121 of the side panel 12 may be bent inward to form a bending groove 13. The first side panel 121 may be the side panel on the side closest to the light-emitting unit 3, and the first end may be the end of the first side panel 121 away from the base panel 11.

[0039] The plastic frame 2 can be located inside the side plate 12, and the two ends of the plastic frame 2 in the circumferential direction can be connected to the two ends of the bending groove 13. In some embodiments, the plastic frame 2 can be fixed to the back plate 1 by a snap connection, thereby facilitating assembly and maintenance.

[0040] Multiple light emitting units 3 can be combined and used in the form of a light bar, which can be easily fixed. The light emitting unit 3 can be set in the bending groove 13, specifically at the bottom of the bending groove 13, to achieve side-entry lighting.

[0041] The display module may further include a light guide plate 4 and an optical film 5. In some embodiments, one end of the light guide plate 4 may extend into the bending groove 13, and the light incident surface of the light guide plate 4 may be arranged opposite to the light emitting surface of the light emitting unit 3, thereby increasing the amount of light entering the light guide plate 4. The optical film 5 may be arranged above the light guide plate 4 to facilitate uniform light distribution. The optical film 5 may include a prism film, an anti-reflection film, a diffusion film, etc., which are not particularly limited in the embodiments of the present application. A reflective sheet 6 may also be arranged between the light guide plate 4 and the base plate 11 to improve the utilization rate of light.

[0042] See Figure 1 , the light emitting angle of the light emitting unit 3 can be expressed as α, the distance between the light emitting surface of the light emitting unit 3 and the end surface of the first end of the first side plate 121 can be expressed as h, for any end of the bending groove 13 in the circumferential direction, the distance d between the end surface of the end and the light emitting unit 3 closest to the end can satisfy d>h*tanα, so that the light will not be incident on the junction of the two ends of the plastic frame 2 and the two ends of the bending groove 13 ( Figure 1 The gap in the middle) can then reduce the occurrence of light leakage.

[0043] A printed circuit board assembly (PCBA) can be positioned above the bending groove 13. The PCBA can be bent above the bending groove 13 and extend to the side of the base plate 11 away from the side panels 12, thereby increasing the effective display area. A liquid crystal cell can be positioned above the PCBA and the plastic frame 2, allowing the plastic frame 2 to support the liquid crystal cell and improve the reliability of the display module. The thickness of the plastic frame 2 on the side closest to the effective display area can be thinner than on the side away from the effective display area. This not only limits the position of the liquid crystal cell but also reduces material costs.

[0044] The present application provides a display module, comprising: a back panel, a plastic frame and a plurality of light-emitting units; the back panel comprises a bottom panel and side panels vertically arranged around the bottom panel; the first end of the first side panel of the side panel is bent inward to form a bending groove, and the light-emitting unit is arranged in the bending groove; the first end is the end of the first side panel away from the bottom panel; the plastic frame is located on the inner side of the side panel, and the two ends of the plastic frame are connected to the two ends of the bending groove in the circumferential direction; the light-emitting angle of the light-emitting unit is α, and the distance between the light-emitting surface of the light-emitting unit and the end face of the first end of the first side panel is h; for any end of the bending groove in the circumferential direction, the distance d between the end face of the end and the light-emitting unit closest to the end satisfies d>h*tanα, thereby reducing the occurrence of light leakage in the display module.

[0045] An embodiment of the present application further provides a display device, which may include: a housing and the display module described in any of the above embodiments.

[0046] Since the display device in this embodiment includes the display module in the above embodiment, that is, the display device in this embodiment has all the technical features and technical effects of the above display module embodiments, specific reference is made to the above embodiment and no further details are given here.

[0047] It should be understood that in the description of this application specification and the appended claims, the terms "include", "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions and mean "including but not limited to", unless otherwise specifically emphasized.

[0048] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is used to describe the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0049] Furthermore, in the description of this application, unless otherwise specified, "a plurality of" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items.

[0050] In addition, in the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "longitudinal", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; 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 be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0052] In addition, in the description of this application specification and the appended claims, the terms "first," "second," etc. are used to distinguish similar objects and should not be understood as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the technical features indicated. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that shown or described herein; and features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0053] In the embodiments of this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display module, characterized in that: include: Back panel, plastic frame and multiple light-emitting units; The back plate includes a bottom plate and side plates vertically arranged around the bottom plate; The first end of the first side plate of the side plates is bent inward to form a bending groove, and the light emitting unit is arranged in the bending groove; the first end is the end of the first side plate away from the bottom plate; The rubber frame is located on the inner side of the side plate, and the two ends of the rubber frame are connected to the two ends of the bending groove in the circumferential direction; The light emitting angle of the light emitting unit is α, and the distance between the light emitting surface of the light emitting unit and the end surface of the first end of the first side plate is h; For any end of the bending groove in the circumferential direction, the distance d between the end surface of the end and the light-emitting unit closest to the end satisfies d>h*tanα.

2. The display module according to claim 1, wherein: A printed circuit board is arranged above the bending groove, and the printed circuit board is bent above the bending groove to a side of the bottom plate away from the side plate.

3. The display module according to claim 2, wherein: The plastic frame and the printed circuit board are covered with a liquid crystal box.

4. The display module according to claim 1, wherein: The plastic frame and the back plate are fixed together by means of a snap connection.

5. The display module according to claim 1, wherein: The light emitting unit is located at the bottom of the bending groove.

6. The display module according to claim 1, wherein: A light guide plate and an optical film are also provided in the bending groove.

7. The display module according to claim 6, wherein: A reflective sheet is arranged between the light guide plate and the bottom plate.

8. The display module according to claim 1, wherein: The thickness of the side of the plastic frame close to the effective display area is smaller than the thickness of the side of the plastic frame away from the effective display area.

9. The display module according to any one of claims 1 to 8, wherein: The bottom plate and the side plates are formed integrally.

10. A display device, characterized in that: include: A housing and a display module according to any one of claims 1 to 9.

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