CN209928185U - Backlight and display device - Google Patents

Abstract

The present disclosure relates to a backlight and a display device, wherein the backlight includes: the method comprises the following steps: a frame having a bottom and an open side; a light shielding sheet disposed on an opening side of the frame; a flexible wiring board having a first side and a second side, the first side being disposed on a side of the light-shielding sheet facing the bottom of the frame; and a light emitting support part disposed at the second side of the flexible wiring board and supported between the flexible wiring board and the bottom of the frame. The embodiment of the disclosure utilizes the light-emitting supporting part as the support between the flexible circuit board and the frame, and omits a rubber frame taking the incident light side as the support, thereby reducing the width of the incident light side.

Description

Backlight and display device

Technical Field

The disclosure relates to the technical field of display, in particular to a backlight source and a display device.

Background

With the development of technology, more and more Display devices, such as Liquid Crystal Displays (LCDs), are used by users. The LCD includes a backlight Unit (BLU) module. The side-Emitting backlight includes a Light source located at a Light incident side, the Light source is, for example, a Light Emitting Diode (LED), generally, one LED is processed on a Flexible Printed Circuit (FPC) by a Surface Mount Technology (SMT), and then the Flexible Printed Circuit is assembled into a frame, and at this time, a frame is supported between the Flexible Printed Circuit and the frame. The backlight module formed in this way has a wider incident light side ratio, which is not favorable for meeting the increasingly light and thin industrial requirements of the display device.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a backlight source and a display device. The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided a backlight, comprising: a frame having a bottom and an open side; a light shielding sheet disposed on an opening side of the frame; a flexible wiring board having a first side and a second side, the first side being disposed on a side of the light-shielding sheet facing the bottom of the frame; and a light emitting support part disposed at the second side of the flexible wiring board and supported between the flexible wiring board and the bottom of the frame.

Optionally, the light-emitting support portion includes an integrated light bar.

Optionally, the integrated light bar comprises an integrated light emitting diode light bar.

Optionally, the light-emitting support part is fixedly connected with the bottom of the frame.

Optionally, the light-emitting support portion and the bottom of the frame are fixedly connected through a double-sided adhesive tape.

According to a second aspect of the embodiments of the present disclosure, there is provided a display device including the backlight described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the technical scheme, the luminous supporting part is used as the support between the flexible circuit board and the frame, and the rubber frame used as the support for the incident light side is omitted, so that the width of the incident light side is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram of an exemplary backlight.

Fig. 2 is a schematic diagram of the backlight of fig. 1 in which LEDs are disposed on an FPC.

Fig. 3 is a schematic diagram of a backlight shown in accordance with an embodiment of the present disclosure.

FIG. 4 is a schematic diagram of the LEDs and FPC in the backlight shown in FIG. 3.

Fig. 5 is a schematic diagram illustrating a device having a backlight according to another embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The technical scheme provided by the embodiment of the disclosure relates to a backlight source, and the backlight source can be used for a liquid crystal display screen.

Fig. 1 is a schematic diagram of a portion of a conventional backlight including a light incident side. As shown in fig. 1, the backlight includes a U-shaped frame 13, a reflection sheet 19, a light guide plate 18, a diffusion sheet 17, a prism sheet 16, and a light shielding sheet 15 are sequentially provided in the frame 13, and an FPC11 and an LED14 are provided on the light entrance side in the frame 13. As shown in fig. 2, when the LEDs 14 are individually processed on the FPC11 by SMT and then the FPC11 is assembled into the backlight, the rubber frame 12 is required to be provided between the FPC11 and the frame 13 as a support.

Fig. 3 is a schematic diagram illustrating a light incident side of a backlight according to an exemplary embodiment of the present disclosure. As shown in fig. 3, the backlight 300 proposed by the present disclosure at least includes: a frame 13 having a bottom and an open side; a light shielding sheet 15 provided on an opening side of the frame 13; a flexible wiring board 11 having a first side and a second side, the first side being disposed on a side of the light-shielding sheet 15 facing the bottom of the frame 13; a light emitting support portion 14' is provided on the second side of the flexible wiring board 11 and supported between the flexible wiring board 11 and the bottom of the frame 13. Those skilled in the art will appreciate that the backlight may also include other components, for example, the backlight in fig. 3 may also include prism sheets 16, diffusion sheet 17, light guide plate 18, and reflective sheet 19 disposed within frame 13.

In the embodiment of the present disclosure, the LEDs 14 originally attached to the FPC one by one are replaced with the light-emitting support portions 14' that can not only emit light but also support, so that the light-emitting support portions can be directly used as supports, and the original rubber frame that supports can be omitted, thereby reducing the width of the light incident side of the backlight.

The light-emitting support portion 14' capable of supporting may be, for example, an integrated light bar, different from one LED in fig. 2, a plurality of point light sources such as LEDs may be packaged in the integrated light bar, and the LEDs do not need to be mounted on the FPC one by one. Fig. 4 shows the position relationship between the integrated light bar 14' and the FPC 11. As can be seen from fig. 4, the integrated light bar 14 'and the FPC11 are substantially independent from each other, and the integrated light bar 14' is directly connected to the FPC11 when in use.

In an embodiment of the present disclosure, the integrated light bar 14' may be an LED light bar, and in the embodiment of the present disclosure, what kind of light source is specifically adopted for the integrated light bar is not specifically limited. By adopting the integrated LED lamp strip, more LED chips can be integrated, so that the distance between the LED chips is smaller, the LED chips can be close to a linear light source, and the distance from a light emitting surface to a light emitting area is shorter.

In another embodiment of the present disclosure, the light emitting support portion 14' is fixedly connected to the bottom of the frame 13. For example, the light emitting support portion 14' and the frame 13 may be fixedly connected by a double-sided tape 20. In other examples of the present disclosure, the integrated light bar 14' and the frame can be secured using any suitable means, which is not specifically limited by the present disclosure.

The embodiment of the disclosure also provides a display device, which includes the backlight source.

Fig. 5 is a block diagram illustrating an apparatus 800 according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, a camera, and the like.

Referring to fig. 5, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 or micro-control units to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an example embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-control units, or other electronic components.

Wherein, multimedia component's LCD includes the backlight, and the backlight includes: a frame having a bottom and an open side; a light shielding sheet disposed on an opening side of the frame; a flexible wiring board having a first side and a second side, the first side being disposed on a side of the light-shielding sheet facing the bottom of the frame; and a light emitting support part disposed at the second side of the flexible wiring board and supported between the flexible wiring board and the bottom of the frame.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (6)

1. A backlight, comprising:

a frame having a bottom and an open side;

a light shielding sheet disposed on an opening side of the frame;

a flexible wiring board having a first side and a second side, the first side being disposed on a side of the light-shielding sheet facing the bottom of the frame;

and a light emitting support part disposed at the second side of the flexible wiring board and supported between the flexible wiring board and the bottom of the frame.

2. The backlight of claim 1, wherein the luminescent support portion comprises an integral light bar.

3. The backlight of claim 2, wherein the integral light bar comprises an integral light emitting diode light bar.

4. The backlight of claim 1, wherein the light-emitting support portion is fixedly connected to a bottom portion of the frame.

5. The backlight of claim 4, wherein the light-emitting support portion and the bottom of the frame are fixedly connected by a double-sided adhesive tape.

6. A display device, characterized in that the display device comprises a backlight as claimed in any one of claims 1 to 5.

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