CN220154762U

CN220154762U - Filter strip and electronic equipment

Info

Publication number: CN220154762U
Application number: CN202320967847.1U
Authority: CN
Inventors: 谭景焕; 廖金海
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-12-08
Anticipated expiration: 2033-04-24

Abstract

The utility model relates to a light filtering strip and electronic equipment, wherein the light filtering strip comprises a light filtering piece and a shading piece, the light filtering piece comprises a supporting part and a light transmitting part which are connected, the supporting part is used for being arranged between a frame of a touch screen and a glass cover plate and used for supporting the side edge of the glass cover plate, and the light transmitting part is used for covering a light transmitting opening of the frame. The shading piece is arranged on the bearing part and used for coating the side edge of the glass cover plate and filling a gap between the glass cover plate and the bearing part. The light filtering strip can shield light of the backlight module, and light leakage phenomenon of electronic equipment is avoided.

Description

Filter strip and electronic equipment

Technical Field

The present utility model relates to the field of display devices, and in particular, to a filter strip and an electronic device.

Background

With the increasing popularity of electronic intelligent products, intelligent interactive display devices have also been developed. Touch screens are an important component of intelligently interactable display devices. The touch screen is widely applied to the fields of public service information inquiry, industrial automation control and the like.

The touch screen comprises a touch area and a touch screen frame, wherein a detection lamp tube is arranged in the touch screen frame, the touch screen frame is also provided with a light transmission opening, and the detection lamp tube can emit detection light to the touch area through the light transmission opening so as to detect the position information of a touch object in the touch area. However, the detection lamp tube is sensitive to the change of the environmental illumination factors, and misoperation can be caused when the illumination change is large. In order to reduce the interference of the ambient light as much as possible and enhance the anti-interference performance of the touch screen, a light filtering strip is arranged at the light transmitting opening of the frame, and the light filtering strip is made of a light transmitting material and can transmit the detection light and filter other ambient light. However, since the glass cover plate of the touch screen is also made of a light-transmitting material, light of the backlight module of the touch screen can be transmitted out from the side edges of the light-filtering strips and the glass cover plate, so that the touch screen has the problem of light leakage.

Disclosure of Invention

Based on this, it is necessary to provide a filter bar and an electronic device for avoiding the problem of light leakage of the touch screen.

A filter bar, the filter bar comprising:

the light filtering piece comprises a bearing part and a light-transmitting part which are connected, the bearing part is used for being arranged between a frame of the touch screen and the glass cover plate and used for bearing the side edge of the glass cover plate, and the light-transmitting part is used for covering a light-transmitting opening of the frame; the method comprises the steps of,

the shading piece is arranged on the bearing portion and used for wrapping the side edge of the glass cover plate and filling a gap between the glass cover plate and the bearing portion.

In one embodiment, the light-transmitting member is a rigid member, and the light-shielding member is an elastic member.

In one embodiment, the supporting portion includes a first section and a second section disposed at an included angle, the first section is connected to one end of the second section, the light-transmitting portion is connected to the other end of the second section, the first section and the light-transmitting portion extend in directions away from each other, the first section is disposed between a frame of the touch screen and the glass cover plate, and the second section is used for supporting a side edge of the glass cover plate.

In one embodiment, the light shielding member includes a first portion and a second portion connected to each other, the first portion and the second portion being disposed at an angle and forming a carrying space for carrying the glass cover plate, the first portion being configured to be connected between the first section and an end portion of the glass cover plate, and the second portion being configured to be connected between the second section and a side surface of the glass cover plate.

In one embodiment, the light shielding member further includes a limiting protrusion, the limiting protrusion is formed on one side of the first portion, which is close to the bearing space, and the limiting protrusion is disposed at an interval from the second portion, and the limiting protrusion and the second portion are respectively abutted to two sides of the glass cover plate.

In one embodiment, a hook portion is disposed on one side of the supporting portion, away from the light shielding member, and is used for being matched with the frame in a clamping manner, and/or an inserting portion is disposed on one end of the light-transmitting portion, away from the supporting portion, and is used for being matched with the frame in a clamping manner.

In one embodiment, the supporting part is provided with a buckle, the shading piece is provided with a clamping groove, and the buckle is clamped in the clamping groove.

In one embodiment, the supporting portion is provided with a clamping groove, the shading piece is provided with a buckle, and the buckle is clamped in the clamping groove.

In one embodiment, the buckle is a T-shaped protrusion, and the clamping groove is a T-shaped groove matched with the buckle.

On the other hand, the utility model also provides electronic equipment, which comprises a detection lamp tube, a backlight module, a glass cover plate covered on the backlight module, a frame surrounding the periphery of the glass cover plate and the light filtering strip, wherein the frame is provided with a mounting groove for mounting the detection lamp tube and a light transmission opening communicated with the mounting groove, and the light filtering strip is arranged between the frame and the glass cover plate and covers the light transmission opening.

Above-mentioned light filtering strip sets up the shade through the supporting part at the light filtering piece to make the side of shade cladding glass apron and fill the clearance between glass apron and the supporting part, make the shade can shelter from backlight unit's light, thereby avoid backlight unit's light to pass the clearance between light filtering strip and the glass apron and see through via the side of glass apron, and then avoid electronic equipment to appear the light leak phenomenon, simultaneously through the printing opacity department that covers the printing opacity department that does not cover the light shading piece in the frame, avoided the light shading piece to shelter from the detection fluorescent tube in the printing opacity mouth, with guarantee that the light filtering strip can see through detection light and filter other ambient light in printing opacity department, guaranteed promptly that the filtering function of light filtering piece does not receive the light shading piece influence.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment.

Fig. 2 is a partial enlarged view of the a part shown in fig. 1.

Fig. 3 is a schematic structural diagram of a filter bar according to an embodiment.

Reference numerals illustrate:

10. a filter strip; 11. a light filter; 110. a support part; 111. a first section; 112. a second section; 113. a light transmitting portion; 114. a hook portion; 115. a plug-in part; 116. a buckle; 12. a light shielding member; 120. a carrying space; 121. a first section; 122. a second section; 123. a limit protrusion; 124. a clamping groove; 125. an inclined surface; 21. a frame; 211. a mounting groove; 212. a light transmission port; 22. a glass cover plate; 23. a backlight module; 231. a liquid crystal panel; 232. an optical component; 233. soaking cotton; 24. and detecting the lamp tube.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The utility model provides electronic equipment, which can be particularly an electronic product which is common in the market and can realize man-machine interaction, such as an intelligent screen, an integrated machine, a tablet, a notebook, a computer, a television and the like. For convenience of description, an electronic device having a touch screen will be described as an example.

Referring to fig. 1 and 2, an electronic device of an embodiment includes a backlight module 23, a detecting lamp 24, a glass cover 22, a frame 21 and a filter 10. The glass cover plate 22 is covered on the backlight module 23, the frame 21 is enclosed on the periphery of the glass cover plate 22, the frame 21 is provided with a mounting groove 211 and a light transmission opening 212 communicated with the mounting groove 211, and the detection lamp 24 is arranged in the mounting groove 211 and can emit or receive detection light through the light transmission opening 212.

Further, the backlight module 23 includes an optical assembly 232 and a liquid crystal panel 231, the liquid crystal panel 231 is disposed between the optical assembly 232 and the glass cover 22, the liquid crystal panel 231 is disposed at intervals from the optical assembly 232, and foam 233 for buffering and damping is disposed between the liquid crystal panel 231 and the optical assembly 232. The glass cover plate 22 and the liquid crystal panel 231 are bonded by an adhesive.

Optionally, in an embodiment, the detecting light tube 24 includes an emitting tube and a receiving tube, and the emitting tube is disposed opposite to the receiving tube, and a touch detecting area is formed between the emitting tube and the receiving tube, so that the receiving tube can receive the detecting light emitted by the corresponding emitting tube through the light transmitting opening 212. When the touch object is in the touch detection area, the receiving tube cannot receive the light emitted by the emitting tube, and at this time, the position information of the touch object can be determined according to the position information of the receiving tube that cannot receive the detection light, alternatively, in an implementation, the detection light tube 24 may be an infrared light tube, and the detection light may be an infrared light.

As described above, the detecting lamp 24 is susceptible to malfunction caused by interference of ambient light, so the filter strip 10 of the present utility model is disposed between the frame 21 and the glass cover 22 and covers the light-transmitting opening 212. The filter strip 10 can filter out other ambient light while transmitting the detection light, so as to reduce interference of the ambient light to the detection lamp 24 and enhance anti-interference performance of the touch screen.

However, since the filter strip 10 and the glass cover plate 22 are made of transparent materials, a certain gap is usually left between the filter strip 10 and the glass cover plate 22 during assembly. The light of the backlight module 23 passes through the gap between the filter 10 and the glass cover 22 and is transmitted out through the side of the glass cover 22, so that the touch screen has light leakage.

Based on this, the present utility model further provides a filter bar 10, referring to fig. 2 and 3, the filter bar 10 of an embodiment includes a filter 11 and a light shielding member 12, wherein the filter 11 is made of a light-transmitting material, and the filter 11 can transmit the detection light and filter out other ambient light. The filter 11 includes a supporting portion 110 and a light-transmitting portion 113, where the supporting portion 110 is disposed between the frame 21 and the glass cover 22 of the touch screen and is used for supporting a side edge of the glass cover 22, and the light-transmitting portion 113 is used for covering a light-transmitting opening 212 of the frame 21. Further, the light shielding member 12 is made of an opaque material, the light shielding member 12 is disposed on the supporting portion 110, and the light shielding member 12 is used for covering the side edge of the glass cover 22 and filling the gap between the glass cover 22 and the supporting portion 110. The light shielding member 12 is used for shielding light of the backlight module 23.

The light shielding member 12 is arranged on the supporting portion 110 of the light filtering member 11, and the light shielding member 12 is used for covering the side edge of the glass cover plate 22 and filling the gap between the glass cover plate 22 and the supporting portion 110, so that the light shielding member 12 can shield the light of the backlight module 23, the light of the backlight module 23 is prevented from penetrating through the gap between the light filtering member 10 and the glass cover plate 22 and is transmitted out through the side edge of the glass cover plate 22, the touch screen is prevented from light leakage, and meanwhile, the light transmitting portion 113 which is not covered with the light shielding member 12 is covered at the light transmitting opening 212 of the frame 21, so that the light shielding member 12 is prevented from shielding the detection lamp tube 24 in the light transmitting opening 212, the light filtering member 10 can transmit detection light and filter other ambient light at the light transmitting opening 212, and the light filtering function of the light filtering member 11 is prevented from being influenced by the light shielding member 12.

Alternatively, in one embodiment, the filter 11 is a rigid member, that is, the filter 11 is made of a rigid material, such as a PC (Polycarbonate) material. By configuring the filter 11 as a rigid member, it is ensured that the filter 11 can stably support the glass cover plate 22 and the light shielding member 12, increasing the overall rigidity of the filter bar 10.

Optionally, in an embodiment, the light shielding member 12 is an opaque elastic member, that is, the light shielding member is made of an elastic material, such as a transparent polymer material like PET (Thermoplastic Elastomer ). Specifically, the material of the conventional filter rod 10 is generally a hard material, and a gap is provided between the conventional filter rod 10 and the glass cover plate 22. During touch writing, the glass cover plate 22 is easy to shake, so that the hard filter strip 10 and the hard glass cover plate 22 are hard collided, and the glass cover plate 22 generates abnormal sound. According to the filter strip 10, the elastic shading piece 12 is filled in the gap between the glass cover plate 22 and the bearing part 110, so that a good shock absorption and buffering effect can be achieved, the filter strip 10 and the glass cover plate 22 are prevented from being in hard contact, and the problem of abnormal sound is further avoided.

Referring to fig. 3, optionally, in an embodiment, the bearing portion 110 includes a first section 111 and a second section 112 disposed at an angle, and the first section 111 is connected to one end of the second section 112. Specifically, in the present embodiment, the first section 111 and the second section 112 are disposed at right angles, that is, the supporting portion 110 has an L-shaped structure, where the first section 111 is disposed between the frame 21 and the glass cover 22, and the second section 112 is used for supporting the glass steel plate. Further, the light-transmitting portion 113 is connected to the other end of the second section 112, and the light-transmitting portion 113 and the first section 111 extend in directions away from each other, wherein the first section 111 is configured to be disposed between the bezel 21 of the touch screen and an end portion of the glass cover 22, and the second section 112 is configured to support a side surface of the glass cover 22. Thus, the light shielding member 12 disposed on the supporting portion 110 can be prevented from covering the light transmitting portion 113, so that the red light of the detecting lamp 24 can be ensured to penetrate through the light transmitting portion 113. Preferably, the supporting portion 110 and the light-transmitting portion 113 are integrally formed.

Further, the shape of the light shielding member 12 matches the shape of the supporting portion 110, specifically, the light shielding member 12 includes a first portion 121 and a second portion 122 connected to each other, the first portion 121 and the second portion 122 are disposed at an angle and form a carrying space 120 for carrying the glass cover 22, the first portion 121 is connected between the first section 111 and an end portion of the glass cover 22, and the second portion 122 is connected between the second section 112 and a side surface of the glass cover 22. . Preferably, the first portion 121 is disposed at right angles to the second portion 122, i.e., the light shielding member 12 is generally L-shaped in shape to better match the right-angled sides of the glass cover 22.

With continued reference to fig. 3, the light shielding member 12 further includes a limiting protrusion 123, where the limiting protrusion 123 is formed on a side of the first portion 121 near the bearing space 120, and the limiting protrusion 123 and the second portion 122 are disposed at intervals along the thickness direction of the glass cover plate, and the limiting protrusion 123 and the second portion 122 are respectively abutted against two sides of the thickness direction of the glass cover plate 22, so as to limit the glass cover plate from being separated along the thickness direction, and enhance the connection stability of the filter strip 10 and the glass cover plate 22. Further, an inclined surface 125 is formed at a side of the limiting protrusion 123 away from the second portion 122, so that the filter rod 10 is easily inserted into a gap between the bezel 21 and the glass cover plate 22.

Further, in order to increase the connection strength between the filter 11 and the shade 12 made of different materials, in one embodiment, the supporting portion 110 is provided with a buckle 116, the shade 12 is provided with a slot 124, and the buckle 116 is clamped in the slot 124, so that the connection strength between the filter 11 and the shade 12 is improved. Preferably, in the present embodiment, the supporting portion 110 is provided with a plurality of buckles 116, the light shielding member 12 is provided with a plurality of clamping grooves 124, and the plurality of buckles 116 are correspondingly clamped in the plurality of clamping grooves 124, so as to further enhance the connection strength between the light transmitting member and the light shielding member 12. Preferably, in the present embodiment, the buckle 116 is a T-shaped protrusion, and the slot 124 is a T-shaped slot that mates with the buckle 116, so that the filter 11 and the shade 12 can be locked to each other after the buckle 116 is placed in the slot 124.

In another embodiment, the supporting portion 110 may be provided with a slot 124, and the light shielding member 12 is provided with a buckle 116, so that the connection strength between the light transmitting member and the light shielding member 12 can be enhanced by clamping the buckle 116 in the slot 124.

Referring to fig. 2 and 3, a hook 114 is disposed on a side of the support portion 110 facing away from the light shielding member 12, and the hook 114 is configured to be in snap fit with the frame 21. Specifically, a first caulking groove is formed between the hook 114 and the first section 111 of the support 110, and the frame 21 is provided with a first protrusion, so that the connection strength between the filter strip 10 and the frame 21 can be increased by inserting the first protrusion into the first caulking groove.

Further, an inserting portion 115 is disposed at an end of the light-transmitting portion 113 away from the supporting portion 110, and the inserting portion 115 is configured to be in clamping engagement with the frame 21. Specifically, the frame 21 is further provided with a second caulking groove, and by inserting the inserting portion 115 into the second caulking groove, the connection strength of the filter strip 10 and the frame 21 can be further increased.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A filter strip, the filter strip comprising:

the optical filter (11), the optical filter (11) comprises a bearing part (110) and a light-transmitting part (113) which are connected, the bearing part (110) is used for being arranged between a frame (21) of the touch screen and a glass cover plate (22) and used for bearing the glass cover plate (22), and the light-transmitting part (113) is used for covering a light-transmitting opening (212) of the frame (21); the method comprises the steps of,

the shading piece (12), shading piece (12) set up in supporting portion (110), shading piece (12) are used for cladding glass apron (22) side and fill glass apron (22) with the clearance between supporting portion (110).

2. The filter strip according to claim 1, wherein the supporting portion (110) comprises a first section (111) and a second section (112) disposed at an included angle, the first section (111) is connected to one end of the second section (112), the light-transmitting portion (113) is connected to the other end of the second section (112), the first section (111) and the light-transmitting portion (113) extend in directions away from each other, the first section (111) is configured to be disposed between a frame (21) of the touch screen and an end portion of the glass cover plate (22), and the second section (112) is configured to support the glass cover plate (22).

3. The filter strip according to claim 2, wherein the light shielding member (12) comprises a first portion (121) and a second portion (122) connected to each other, the first portion (121) and the second portion (122) being arranged at an angle and forming a carrying space (120) for carrying the glass cover plate (22), the first portion (121) being adapted to be connected between the first section (111) and an end of the glass cover plate (22), the second portion (122) being adapted to be connected between the second section (112) and a side of the glass cover plate (22).

4. A filter strip according to claim 3, wherein the light shielding member (12) further comprises a limiting protrusion (123), the limiting protrusion (123) is formed on one side of the first portion (121) close to the bearing space (120), the limiting protrusion (123) is spaced from the second portion (122), and the limiting protrusion (123) and the second portion (122) are respectively abutted against two sides of the glass cover plate (22).

5. Filter strip according to claim 1, characterized in that the side of the support (110) facing away from the light-shielding element (12) is provided with a hook (114), the hook (114) being adapted to be snap-fitted to the frame (21).

6. The filter strip according to claim 1, wherein an end of the light-transmitting portion (113) away from the supporting portion (110) is provided with a plugging portion (115), and the plugging portion (115) is used for being in clamping fit with the frame (21).

7. The filter strip according to any one of claims 1 to 6, wherein the support (110) is provided with a catch (116), the shade (12) is provided with a catch groove (124), and the catch (116) is caught in the catch groove (124); or, the supporting part (110) is provided with a clamping groove (124), the shading piece (12) is provided with a buckle (116), and the buckle (116) is clamped in the clamping groove (124).

8. The filter strip of claim 7, wherein the clasp (116) is a T-shaped protrusion and the slot (124) is a T-shaped slot that mates with the clasp (116).

9. Filter strip according to any of claims 1-6, characterized in that the filter element (11) is a rigid element and the light shielding element (12) is an elastic element.

10. The electronic device is characterized by comprising a detection lamp tube (24), a backlight module (23), a glass cover plate (22) covering the backlight module (23), a frame (21) surrounding the periphery of the glass cover plate (22) and the light filtering strip (10) according to any one of claims 1-9, wherein the frame (21) is provided with a mounting groove (211) for mounting the detection lamp tube (24) and a light transmission opening (212) communicated with the mounting groove (211), and the light filtering strip (10) is arranged between the frame (21) and the glass cover plate (22) and covers the light transmission opening (212).