CN112509460A - Backlight module and display panel - Google Patents

Backlight module and display panel Download PDF

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Publication number
CN112509460A
CN112509460A CN202011435441.6A CN202011435441A CN112509460A CN 112509460 A CN112509460 A CN 112509460A CN 202011435441 A CN202011435441 A CN 202011435441A CN 112509460 A CN112509460 A CN 112509460A
Authority
CN
China
Prior art keywords
backlight module
protection element
disposed
electrostatic protection
reflector plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011435441.6A
Other languages
Chinese (zh)
Inventor
李姵珊
康家菱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AU Optronics Kunshan Co Ltd
Original Assignee
AU Optronics Kunshan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AU Optronics Kunshan Co Ltd filed Critical AU Optronics Kunshan Co Ltd
Priority to CN202011435441.6A priority Critical patent/CN112509460A/en
Publication of CN112509460A publication Critical patent/CN112509460A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges

Abstract

The invention provides a backlight module and a display panel. The backlight module comprises a reflector plate, a first light source and a second light source, wherein the reflector plate is provided with a first surface and a second surface; the rubber frame is arranged on the reflector plate and provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged, and the third surface and the second surface are oppositely arranged; the first electrostatic protection element is arranged on the fourth surface of the rubber frame; the second electrostatic protection element is arranged on the reflector plate; and the first connecting assembly is arranged on the rubber frame and is electrically connected with the first electrostatic protection element and the second electrostatic protection element.

Description

Backlight module and display panel
Technical Field
The present invention relates to a backlight module and a display panel, and more particularly, to a backlight module and a display panel without a lower iron case.
Background
With the development of science and technology, display panels are widely used in many electronic products, such as mobile phones, tablet computers, watches, and the like.
For a display panel without a lower iron shell design, the reflective sheet is adhered to the lower surface of the rubber frame, and the reflective sheet and the rubber frame are combined to form an accommodating space so as to arrange optical components such as a light guide plate and an optical diaphragm in the accommodating space to form the backlight module. And then the backlight module is stuck on the upper prism sheet by the shading adhesive tape. Because the backlight module is not provided with the lower iron shell, electrostatic charges generated on the reflecting sheet are released everywhere, pixel units of the display panel are affected by the electrostatic charges to reduce the display quality, and the display panel can be failed under severe conditions.
Therefore, how to better discharge the electrostatic charges of the display panel without the backlight module having the lower iron case design is one of the problems to be solved.
Disclosure of Invention
Embodiments of the present invention provide a backlight module and a display panel using the same, which can better release electrostatic charges, prevent the display panel from being affected by the electrostatic charges, and improve the display quality and the yield of products.
The backlight module comprises a reflector plate, a first light source and a second light source, wherein the reflector plate is provided with a first surface and a second surface; the rubber frame is arranged on the reflector plate and provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged, and the third surface and the second surface are oppositely arranged; the first electrostatic protection element is arranged on the fourth surface of the rubber frame; the second electrostatic protection element is arranged on the reflector plate; and the first connecting assembly is arranged on the rubber frame and is electrically connected with the first electrostatic protection element and the second electrostatic protection element.
In the backlight module, the first connecting component is disposed inside the plastic frame or on a side surface of the plastic frame.
In the backlight module, the second electrostatic protection element is disposed on the second surface of the reflector plate, and the backlight module further includes:
the third electrostatic protection element is arranged on the first surface of the reflector plate;
and the second connecting assembly is arranged on the reflector plate and is electrically connected with the second electrostatic protection element and the third electrostatic protection element.
In the backlight module, the second connecting assembly is disposed inside the reflector plate or on a side surface of the reflector plate.
In the backlight module, the first electrostatic protection element, the second electrostatic protection element and the first connection assembly are integrally formed and disposed on the plastic frame.
In the backlight module, the first electrostatic protection element, the second electrostatic protection element and the first connection assembly are exposed out of the plastic frame.
In the backlight module, the second electrostatic protection element is disposed on the first surface of the reflector plate, and the second electrostatic protection element, the first connecting assembly and the second connecting assembly are integrally formed.
In the backlight module, the first connecting assembly is disposed at one side of the rubber frame, and the second connecting assembly is disposed at one side of the reflector plate.
In the backlight module, the reflector plate, the first connecting assembly, the second connecting assembly and the second electrostatic protection element are integrally disposed.
In the backlight module, the first electrostatic protection element or the second electrostatic protection element is a conductive adhesive tape.
In the backlight module, the first connecting assembly and the second connecting assembly are conductive through holes or conductive wires.
In the backlight module, the third electrostatic protection elements are continuously or dispersedly disposed.
The display panel of an embodiment of the invention includes any one of the backlight modules.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1A is a schematic structural side view of a backlight module according to an embodiment of the invention.
Fig. 1B is a schematic top view of a structure of a backlight module according to an embodiment of the invention.
Fig. 2A is a schematic side view of a backlight module according to another embodiment of the invention.
Fig. 2B is a schematic top view of a structure of a backlight module according to another embodiment of the invention.
Fig. 2C is another schematic top view of the structure of the backlight module according to another embodiment of the invention.
FIG. 3A is a schematic side view of a backlight module according to another embodiment of the invention.
Fig. 3B is a schematic top view illustrating a structure of a backlight module according to another embodiment of the invention.
Fig. 3C is a schematic perspective view illustrating a structure of a backlight module according to another embodiment of the invention.
Fig. 4A is a schematic side view of a backlight module according to another embodiment of the invention.
Fig. 4B is a schematic top view illustrating a structure of a backlight module according to another embodiment of the invention.
Fig. 5A is a schematic side view of a backlight module according to a further embodiment of the invention.
Fig. 5B is a schematic top view illustrating a structure of a backlight module according to a further embodiment of the invention.
Wherein, the reference numbers:
100: backlight module
101: reflector plate
102: rubber frame
103: first electrostatic protection element
104: second electrostatic protection element
105: first connecting component
106: third electrostatic protection element
107: second connecting component
108: adhesive tape
109: circuit board
S1: first surface
S2: second surface
S3: third surface
S4: the fourth surface
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
fig. 1A is a schematic structural side view of a backlight module according to an embodiment of the invention, and fig. 1B is a schematic structural top view of the backlight module according to an embodiment of the invention.
As shown in fig. 1A and fig. 1B, the backlight module 100 of the present embodiment includes a reflective sheet 101 and a rubber frame 102, wherein the reflective sheet 101 and the rubber frame 102 are disposed together to form an accommodating space for other optical elements (not shown) to be disposed in the accommodating space. The reflective sheet 101 has a first surface S1 and a second surface S2 opposite to each other; the rubber frame 102 has a third surface S3 and a fourth surface S4 opposite to each other. The third surface S3 of the frame 102 is opposite to the second surface S2 of the reflective sheet 101. The first esd protection element 103 is disposed on the fourth surface S4 of the plastic frame 102, the second esd protection element 104 is disposed on the second surface S2 of the reflective sheet 101, the first connection assembly 105 is disposed in the plastic frame 102 or disposed on the side surface of the plastic frame 102, and the first connection assembly 105 is electrically connected to the first esd protection element 103 and the second esd protection element 104. The first electrostatic protection element 103 and the second electrostatic protection element may be adhered to the reflective sheet 101 or the frame 102 by using a conductive tape, or may be formed by coating a conductive coating. The first connection element 105 is formed by a conductive via or a conductive line.
As shown in fig. 1A, an adhesive tape 108 is further disposed on the second surface S2 of the reflective sheet 101, the adhesive tape 108 is disposed close to the light source of the display panel, and the adhesive tape is a non-conductive tape to prevent the light source from being damaged when the electrostatic charges are discharged. The backlight module 100 further includes a circuit board 109, typically a Flexible Printed Circuit (FPC), and the first electrostatic protection element 103 is electrically connected to a ground terminal of the circuit board 109, so as to discharge electrostatic charges to the ground terminal when the circuit board is in normal operation.
Fig. 2A is a schematic side view of a structure of a backlight module according to another embodiment of the invention, fig. 2B is a schematic top view of a structure of a backlight module according to another embodiment of the invention, and fig. 2C is a schematic top view of a structure of a backlight module according to another embodiment of the invention. Referring to fig. 1A, fig. 1B, fig. 2A, fig. 2B, and fig. 2C, another embodiment of the present invention is different from the previous embodiment in that the backlight module 100 further includes a third esd protection element 106 and a second connecting member 107. The third esd protection element 106 is disposed on the first surface S1 of the reflective sheet 101, the second connection component 107 is disposed in the reflective sheet 101 or on the side surface of the reflective sheet 101, and the second connection component 107 is electrically connected to the second esd protection element 104 and the third esd protection element 106.
Specifically, as shown in fig. 2B and 2C, the third esd protection element 106 may be a large-area conductive pad continuously disposed on the first surface S1 of the reflective sheet 101, or may be a plurality of small-area conductive pads disposed in a dispersed manner. Even in the non-energized state of the circuit board 109, the electrostatic charge can be discharged to the third electrostatic protection element through the second connection member 107. In contrast, the electrostatic charge discharging effect of the continuously arranged large-area conductive bonding pad is better than that of the small-area conductive bonding pad, but the manufacturing cost of the small-area conductive bonding pad is more saved due to the fact that the small-area conductive bonding pad has a larger area.
Fig. 3A is a schematic side view of a backlight module according to another embodiment of the invention, and fig. 3B is a schematic top view of the backlight module according to another embodiment of the invention. Fig. 3C is a schematic perspective view illustrating a structure of a backlight module according to another embodiment of the invention. With reference to fig. 1A, fig. 1B, fig. 3A, fig. 3B and fig. 3C, in the present embodiment, the first esd protection element 103, the second esd protection element 104 and the first connection assembly 105 are integrally formed and disposed on the plastic frame 102, the first esd protection element 103 is exposed on the fourth surface S4 of the plastic frame 102, the second esd protection element 104 is exposed on the third surface S3 of the plastic frame 102, and the second esd protection element 104 is in contact with the second surface S2 of the reflective sheet 101. The first esd protection element 103, the second esd protection element 104 and the first connection assembly 105 may be woven by copper wires, and are integrally formed and disposed on the outer surface of the rubber frame 102 when the rubber frame 102 is formed by injection molding. In this embodiment, the first esd protection element 103, the second esd protection element 104 and the first connection assembly 105 can release the electrostatic charges and increase the strength of the frame 102.
Fig. 4A is a schematic structural side view of a backlight module according to still another embodiment of the invention, and fig. 4B is a schematic structural top view of a backlight module according to still another embodiment of the invention. Referring to fig. 1A, fig. 1B, fig. 4A, and fig. 4B, in the backlight module 100 of the present embodiment, the second esd protection element 104 is disposed on the first surface S1 of the reflective sheet 101, and the second esd protection element 104, the first connection assembly 105, and the second connection assembly 107 are integrally formed. The first connecting component 105 is disposed on the side surface of the rubber frame 102, and the second connecting component 107 is disposed on the side surface of the reflective sheet 101. The second esd protection element 104 is disposed on the first surface S1 by using a conductive metal sheet, and the first connection component 105 and the second connection component 107 are disposed on the side surfaces of the rubber frame 102 and the reflective sheet 101 by folding the conductive metal sheet. The second esd protection element 104, the first connection module 105 and the second connection module 107 may be formed by coating conductive metal sheets, and the second esd protection element 104 may be disposed at a corner portion of the reflective sheet 101 or at a side edge portion connecting the corner portions, which is not limited to this.
Fig. 5A is a schematic structural side view of a backlight module according to a further embodiment of the invention, and fig. 5B is a schematic structural top view of the backlight module according to the further embodiment of the invention. With reference to fig. 4A, 4B, 5A, and 5B, in the backlight module 100 of the present embodiment, the reflective sheet 101 is made of a conductive metal sheet, and the reflective sheet 101 itself can be used as the second electrostatic protection element 104, and the reflective sheet 101 made of the conductive metal sheet is folded, so as to form the first connection assembly 105 and the second connection assembly 107 on the side surface of the rubber frame 102.
The invention also provides a display panel, which comprises any one of the backlight modules in the embodiments.
In summary, according to the embodiments of the invention, the electrostatic protection element is disposed in the backlight module, so that the electrostatic charges on the reflective sheet are effectively released, the display panel is prevented from being affected by the electrostatic charges, and the display quality and the yield of the product are improved.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (13)

1. A backlight module, comprising:
the reflecting sheet is provided with a first surface and a second surface, and the first surface and the second surface are arranged oppositely;
the rubber frame is arranged on the reflector plate and provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged, and the third surface and the second surface are oppositely arranged;
the first electrostatic protection element is arranged on the fourth surface of the rubber frame;
the second electrostatic protection element is arranged on the reflector plate;
and the first connecting assembly is arranged on the rubber frame and is electrically connected with the first electrostatic protection element and the second electrostatic protection element.
2. The backlight module as claimed in claim 1, wherein the first connecting member is disposed inside the plastic frame or on a side of the plastic frame.
3. The backlight module as claimed in claim 1, wherein the second electrostatic protection device is disposed on the second surface of the reflector plate, and the backlight module further comprises:
the third electrostatic protection element is arranged on the first surface of the reflector plate;
and the second connecting assembly is arranged on the reflector plate and is electrically connected with the second electrostatic protection element and the third electrostatic protection element.
4. The backlight module as claimed in claim 3, wherein the second connecting member is disposed inside the reflective sheet or at a side of the reflective sheet.
5. The backlight module as claimed in claim 1, wherein the first ESD protection device, the second ESD protection device and the first connection assembly are integrally formed and disposed on the plastic frame.
6. The backlight module as claimed in claim 5, wherein the first ESD protection device, the second ESD protection device and the first connection assembly are exposed out of the frame.
7. The backlight module as claimed in claim 1, wherein the second esd protection element is disposed on the first surface of the reflective sheet, and the second esd protection element, the first connection assembly and the second connection assembly are integrally formed.
8. The backlight module as claimed in claim 7, wherein the first connecting member is disposed at a side of the adhesive frame, and the second connecting member is disposed at a side of the reflective sheet.
9. The backlight module as claimed in claim 7, wherein the reflective sheet, the first connecting member, the second connecting member and the second electrostatic discharge protection element are integrally disposed.
10. The backlight module as claimed in claim 1, wherein the first or second electrostatic protection element is a conductive tape.
11. The backlight module as claimed in claim 3, wherein the first and second connecting members are conductive vias or conductive wires.
12. The backlight module as claimed in claim 3, wherein the third ESD protection devices are disposed continuously or dispersedly.
13. A display panel comprising the backlight module according to any one of claims 1 to 12.
CN202011435441.6A 2020-12-10 2020-12-10 Backlight module and display panel Pending CN112509460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011435441.6A CN112509460A (en) 2020-12-10 2020-12-10 Backlight module and display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011435441.6A CN112509460A (en) 2020-12-10 2020-12-10 Backlight module and display panel

Publications (1)

Publication Number Publication Date
CN112509460A true CN112509460A (en) 2021-03-16

Family

ID=74971887

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011435441.6A Pending CN112509460A (en) 2020-12-10 2020-12-10 Backlight module and display panel

Country Status (1)

Country Link
CN (1) CN112509460A (en)

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