Display module and display device

Abstract

The application relates to a display module, comprising a display panel, a driving circuit board arranged on one side of the display panel along a first direction parallel to a light-out surface of the display panel, and a connector arranged on one end of the driving circuit board along a second direction perpendicular to the first direction and used for connecting with a host computer. The application also relates to a display device. The position of the connector is changed from a middle position to one end of the driving circuit board, the mounting space of the connector is correspondingly increased, the mounting of the connector is facilitated, the connector is arranged at one end of the driving circuit board, the arrangement of a connecting wire harness connected with the connector and the display module is facilitated, the wire harness does not need to be bent by a large angle, and the service life of the wire harness is prolonged.

Description

Technical Field

[0001] This invention relates to the field of display product manufacturing technology, and in particular to a display module and a display device. Background Technology

[0002] The pursuit of ultra-thin, ultra-lightweight, and extremely narrow bezel designs has become mainstream in laptops, greatly enhancing their portability. To achieve the ultimate in thinness and lightness, a new type of display module has emerged and is rapidly being adopted. This module eliminates the backlight of the LCD module, replacing it with the laptop's A-shell, and integrates components such as the camera and antenna within the LCD module.

[0003] The current connection method between new LCD modules and laptop motherboards is almost identical to that of traditional LCD modules. This method presents the following problems when used in new LCD modules:

[0004] Because the back panel (laptop A shell) of the new LCD module covers the entire area of ​​the LCD screen and driver circuit board, the internal space is very small. The eDP connector is usually located in the middle area of ​​the driver circuit board, which makes the installation of the eDP connector difficult.

[0005] To prevent the eDP connector from coming loose due to repeated opening and closing of the laptop during use, traditional laptops currently add locking devices such as tape and clips to the eDP connector. In addition, to prevent electromagnetic compatibility interference, conductive cloth and wave-absorbing materials are added to the eDP connector. However, it is difficult to set up these locking devices and anti-interference materials under the current process flow.

[0006] Due to the need for narrow bezels, the bottom of the new LCD display module is very close to the connector, requiring the connector harness to be bent at a large angle, which can easily cause damage to the harness and poor signal quality. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a display module and a display device that solves issues such as difficulties in connector installation.

[0008] To achieve the above objectives, the technical solution adopted in this embodiment of the invention is as follows: a display module includes a display panel, a driving circuit board is provided on one side of the display panel along a first direction parallel to the light-emitting surface of the display panel, and a connector for connecting to a host is provided at one end of the driving circuit board along a second direction perpendicular to the first direction.

[0009] Optionally, the display module further includes a backlight unit, which includes a light guide plate and a light strip located on the light incident surface of the light guide plate. The first end of the connector is connected to the light strip via a connecting wire harness. In the second direction, the first end is the end of the connector away from the driving circuit board.

[0010] Optionally, the connecting harness is a flexible, flat cable.

[0011] Optionally, the connector is a USB-type-C connector.

[0012] Optionally, it also includes a back plate for accommodating the display panel, the back plate being provided with a bracket perpendicular to the light-emitting surface of the display panel, the driving circuit board being disposed on the bracket, and the driving circuit board being perpendicular to the light-emitting surface of the display panel.

[0013] Optionally, the bracket is made of metal, and the grounding line on the drive circuit board is connected to the bracket so that the electronic components mounted on the drive circuit board are grounded.

[0014] Optionally, it also includes a strip-shaped protective cover, the extension direction of which is parallel to the second direction, and the drive circuit board and the bracket are accommodated within the accommodating space formed by the protective cover and the back plate.

[0015] Optionally, the driving circuit board is connected to the display panel via a flexible circuit board, and the strip-shaped protective cover has a notch on one side facing the display panel so that the flexible circuit board can pass through.

[0016] This invention also provides a display device, including a host portion and a display portion pivotally connected to the host portion, the display portion including the display module described above.

[0017] Optionally, the display module includes a back panel; the display device further includes a rotating structure disposed between the main unit and the display unit, the rotating structure being located at two corners of the back panel near the main unit.

[0018] The rotating structure includes a first connecting part and a second connecting part pivotally connected by a pivot shaft. The first connecting part is disposed on the back plate, and the second connecting part is disposed on the main unit.

[0019] The beneficial effects of this invention are as follows: In traditional technical solutions, the connector is located in the middle of the drive circuit board. However, the electronic components and connecting lines in the middle of the drive circuit board are relatively concentrated, which leads to problems such as difficulty in connector installation. In this embodiment, the position of the connector is changed from the middle to one end of the drive circuit board, which increases the installation space of the connector and facilitates the installation of the connector. Furthermore, since the connector is located at one end of the drive circuit board, it is convenient to arrange the connecting wire harness connecting the connector and the display module without bending at excessive angles, thereby improving the service life of the wire harness. Attached Figure Description

[0020] Figure 1 A schematic diagram illustrating a display module in a traditional technical solution;

[0021] Figure 2 A schematic diagram showing the display module in an embodiment of the present invention;

[0022] Figure 3 express Figure 2 Side view;

[0023] Figure 4 This is a partially enlarged schematic diagram of the display module in an embodiment of the present invention. Figure 1 ;

[0024] Figure 5 This is a partially enlarged schematic diagram of the display module in an embodiment of the present invention. Figure 2 . Detailed Implementation

[0025] 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. 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.

[0026] 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. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0027] A laptop computer consists of a main unit and a display unit. Figure 1 This is a schematic diagram of the display section in a traditional technical solution. The outer shell of the display section is reused as a back panel, and the driver circuit board is located below the display panel. The connector for connecting to the host unit is located on the driver circuit board, in the middle of the board. The driver circuit board also houses multiple electronic components and corresponding connection lines, resulting in a small installation space for the connector and increasing installation difficulty. To prevent the connector from loosening due to repeated opening and closing of the laptop cover during use, locking devices such as tape and clips are added to the connector. To prevent electromagnetic compatibility interference, conductive cloth and absorbing materials are added to the connector. However, due to the limited installation space for the connector and the limited surrounding space, implementing these locking devices and anti-interference materials is difficult under current manufacturing processes.

[0028] refer to Figures 2-5 To address the aforementioned issues, this embodiment provides a display module, including a display panel. A driving circuit board 3 is disposed on one side of the display panel along a first direction parallel to the light-emitting surface of the display panel. A connector 4 for connecting to a host is disposed at one end of the driving circuit board 3 along a second direction perpendicular to the first direction.

[0029] refer to Figure 2 and Figure 4 In contrast Figure 1In this embodiment, the connector 4 is positioned at one end of the drive circuit board 3, near the corner of the back plate 1. The wire harness connecting the connector 4 and the display module extends from one side of the display panel toward the drive circuit board 3, allowing it to connect to the connector 4 without excessive bending, thus extending the service life of the connecting wire harness 12.

[0030] It should be noted that in traditional technical solutions, the connector 4 is generally an eDP connector. However, eDP connectors are relatively large, which increases the difficulty of installation. In this embodiment, a thinner and more compact connector is used, such as a USB-type C connector, but it is not limited to this.

[0031] The connector 4 serves to connect the display module and the host unit together, enabling the transmission of signals and data to the display module. In an exemplary embodiment, the display module further includes a backlight unit, which comprises a light guide plate and a light strip located on the light-incident surface of the light guide plate. The first end of the connector 4 is connected to the light strip via a connecting wire harness 12. In the second direction, the first end is the end of the connector 4 furthest from the drive circuit board 3.

[0032] For example, the connecting harness 12 is a coaxial cable. A coaxial cable is a cable with two concentric conductors, and the conductors and the shielding layer share the same axis, which provides strong anti-interference capabilities.

[0033] In an exemplary embodiment, the display module further includes a back plate 1 for accommodating the display panel, a bracket 2 disposed on the back plate 1 and disposed perpendicular to the light-emitting surface of the display panel, and a driving circuit board 3 disposed on the bracket 2 and disposed perpendicular to the light-emitting surface of the display panel.

[0034] In traditional technical solutions, since the driving circuit board 3 still needs to be arranged on the lower side of the display area, there is still no display space for the driving circuit on the lower side, and a true "full screen" is not achieved. In this embodiment, the driving circuit board 3 is fixed on the bracket 2, and both the driving circuit board 3 and the bracket 2 are set perpendicular to the light-emitting surface of the display panel. Compared with the traditional technical solution (in the traditional technical solution, the driving circuit board 3 is set parallel to the light-emitting surface of the display panel), the length of the driving circuit board 3 is reduced in the first direction. A wide driving circuit area does not need to be arranged on the lower side of the display panel (the lower side here refers to the lower side relative to the line of sight when the user views the image on the display panel), thus reducing the width of the lower side and achieving a "full screen".

[0035] In an exemplary embodiment, the bracket 2 is made of metal, and the grounding line on the drive circuit board 3 is connected to the bracket 2 so that the electronic components mounted on the drive circuit board 3 are grounded.

[0036] refer to Figure 2 and Figure 5 In an exemplary embodiment, the display module further includes a strip-shaped protective cover 11, the extension direction of which is parallel to the second direction, and the drive circuit board 3 and the bracket 2 are accommodated within the accommodating space formed by the protective cover 11 and the back plate 1.

[0037] refer to Figure 5 The strip-shaped protective cover 11 has a U-shaped structure, with the concave surface of the strip-shaped protective cover 11 facing the display panel and the convex surface of the strip-shaped protective cover 11 facing away from the display panel, thus reserving sufficient space for the installation of the driving circuit board 3 and the bracket 2.

[0038] When the display module is applied to the display portion of a laptop computer, the outer surface of the strip-shaped protective cover 11 has a curved cross-section in the first direction to avoid affecting the opening and closing of the display portion relative to the host portion.

[0039] In an exemplary embodiment, the driving circuit board 3 is connected to the display panel via a flexible circuit board 6, and the strip-shaped protective cover 11 has a notch on one side facing the display panel so that the flexible circuit board 6 can pass through.

[0040] This invention also provides a display device, including a host portion and a display portion pivotally connected to the host portion, the display portion including the display module described above.

[0041] In an exemplary embodiment, the display module includes a back panel 1; the display device further includes a rotating structure 5 disposed between the main unit and the display unit, the rotating structure 5 being located at two corners of the back panel 1 near the main unit;

[0042] The rotating structure 5 includes a first connecting part 51 and a second connecting part pivotally connected by a rotating shaft 52. The first connecting part 51 is disposed on the back plate 1, and the second connecting part is disposed on the main unit.

[0043] The first connecting part 51, the second connecting part, and the rotating shaft 52 are connected in a hinge structure so that the display part can be flipped open and closed relative to the host part. The first connecting part 51 may include a connecting plate with threaded holes for engagement with bolts to fix it to the back plate 1. The structure of the second connecting part is symmetrical to that of the first connecting part 51 with respect to the rotating shaft 52.

[0044] For example, in the second direction, the rotating structure 5 is located on opposite sides of the strip-shaped protective cover 11, saving space.

[0045] For example, the display module is a liquid crystal display module, which includes a backlight unit and a display panel located on the light-emitting surface of the backlight unit. The backlight unit includes a light guide plate and a multilayer optical film layer disposed on the light-emitting surface of the light guide plate. Along a direction away from the light guide plate, the multilayer optical film layer includes a diffuser sheet and a prism sheet. The backlight unit includes a lamp bar, which is disposed facing the light-incident surface of the light guide plate. The light-incident surface is adjacent to or opposite to the light-emitting surface of the light guide plate. When the light-incident surface is adjacent to the light-emitting surface of the light guide plate, a reflective sheet is disposed on the bottom surface of the light guide plate (the side opposite to the light-emitting surface of the light guide plate), and reflective sheets are disposed on the side surfaces of the light guide plate other than the light-incident surface. When the light-incident surface is opposite to the light-emitting surface of the light guide plate, a reflective sheet is disposed on the circumferential surface of the light guide plate.

[0046] The display panel includes an array substrate and a color filter substrate disposed opposite each other. A liquid crystal layer is disposed between the array substrate and the color filter substrate, and the liquid crystal layer is encapsulated with a sealing adhesive around its perimeter. The array substrate has gate lines, and data lines are disposed perpendicular to the gate lines. A pixel region is defined between the gate lines and the data lines, and a thin-film transistor and a pixel electrode are disposed within the pixel region. An alignment film and a lower polarizer are also disposed on the side of the array substrate closest to the color filter substrate. The color filter substrate includes a black matrix and color resin layers (including red resin, green resin, and blue resin), as well as a common electrode corresponding to the pixel electrode on the array substrate. An alignment film and an upper polarizer are also disposed on the side of the common electrode facing the array substrate.

[0047] Along the first direction, the display panel includes a display area and a bonding area located on the side of the display area close to the driving circuit board. The bonding area is provided with a source driver chip for transmitting signals to the display area. The source driver chip is signal-connected to the driving circuit board through a flexible circuit board. Along the second direction perpendicular to the first direction, GOA units are provided on opposite sides of the display area.

[0048] The image signal is converted into the signal required by the display module by the system (the host unit) through the driving circuit board, and then flows through the flexible circuit board to the source driver chip and the GOA unit on the display panel to drive the liquid crystal to flip and realize image display. Specifically, the driving circuit board also includes a timing control circuit, a backlight control circuit, a level conversion circuit, and a power management circuit. After the host system is powered on, the power management circuit generates the driving voltage of the GOA unit, the logic voltage and internal driving voltage of the timing control circuit, the liquid crystal flip driving voltage, and the driving voltage of the source driver chip. The host system transmits image data and PWM backlight signals to the timing control circuit through the connector. After receiving the image data, the timing control circuit parses and processes the data and transmits it to the corresponding bonding area of ​​the driver circuit board. It also transmits the GOA timing signal to the level conversion circuit and transmits the PWM backlight signal to the backlight control circuit in the backlight unit as needed. The level conversion circuit modulates the GOA timing signal and the driving voltage of the GOA unit generated by the power management circuit together and transmits them to the bonding area of ​​the driver circuit board. The backlight control circuit modulates the PWM backlight signal into the current of the LED strip and transmits it to the corresponding LED strip through the corresponding backlight connector to light up the backlight. The signal from the bonding area of ​​the driver circuit board is transmitted to the GOA unit and the source driver chip of the display panel through the flexible circuit board to control the liquid crystal flip and realize the image.

[0049] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A display module, characterized in that, The device includes a display panel, and along a first direction parallel to the light-emitting surface of the display panel, a driving circuit board is provided on one side of the display panel. Along a second direction perpendicular to the first direction, one end of the driving circuit board is provided with a connector for connecting to a host computer. The display module further includes a backlight unit, which includes a light guide plate and a light strip located on the light incident surface of the light guide plate. The first end of the connector is connected to the light strip via a connecting wire harness. In the second direction, the first end is the end of the connector away from the driving circuit board. It also includes a back plate for accommodating the display panel, on which a bracket is mounted perpendicular to the light-emitting surface of the display panel, and the driving circuit board is disposed on the bracket such that the driving circuit board is perpendicular to the light-emitting surface of the display panel; the bracket is made of metal.

2. The display module according to claim 1, characterized in that, The connecting harness is a flexible, flat cable.

3. The display module according to claim 1, characterized in that, The connector is a USB-type-C connector.

4. The display module according to claim 1, characterized in that, The grounding line on the drive circuit board is connected to the bracket so that the electronic components mounted on the drive circuit board are grounded.

5. The display module according to claim 1, characterized in that, It also includes a strip-shaped protective cover, the extension direction of which is parallel to the second direction, and the drive circuit board and the bracket are accommodated within the accommodating space formed by the protective cover and the back plate.

6. The display module according to claim 5, characterized in that, The driving circuit board is connected to the display panel via a flexible circuit board, and the strip-shaped protective cover has a notch on one side facing the display panel so that the flexible circuit board can pass through.

7. A display device, characterized in that, It includes a host unit and a display unit pivotally connected to the host unit, the display unit including the display module according to any one of claims 1-6.

8. The display device according to claim 7, characterized in that, The display module includes a back panel; the display device further includes a rotating structure disposed between the main unit and the display unit, the rotating structure being located at two corners of the back panel near the main unit. The rotating structure includes a first connecting part and a second connecting part pivotally connected by a pivot shaft. The first connecting part is disposed on the back plate, and the second connecting part is disposed on the main unit.

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