CN110873923A - Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device - Google Patents
Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device Download PDFInfo
- Publication number
- CN110873923A CN110873923A CN201911219131.8A CN201911219131A CN110873923A CN 110873923 A CN110873923 A CN 110873923A CN 201911219131 A CN201911219131 A CN 201911219131A CN 110873923 A CN110873923 A CN 110873923A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- area
- region
- hole number
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light guide plate (100) which is applied to a backlight source, wherein the disclosed light guide plate (100) comprises a light guide plate main body (110), the plate surface of the light emitting side of the light guide plate main body (110) departing from the backlight source comprises a first area (111) and a second area (112), the first area (111) surrounds the second area (112), the first area (111) and the second area (112) are respectively provided with a plurality of first optical protrusions (120) distributed at intervals, the second area (112) is provided with a plurality of second optical protrusions (130) distributed at intervals, and the projection area of the first optical protrusions (120) is larger than the projection area of the second optical protrusions (130) in the direction perpendicular to the plate surface. Above-mentioned scheme can be solved present light guide plate and have the problem of difficult discernment cave number. The invention discloses a backlight source, electronic equipment, a light guide plate hole number identification method and a light guide plate hole number identification device.
Description
Technical Field
The invention relates to the technical field of production of light guide plates of backlight sources, in particular to a light guide plate, a backlight source, electronic equipment, and a light guide plate hole number identification method and device.
Background
With the rapid development of electronic devices (such as mobile phones, tablet computers, and the like), users have higher and higher requirements for electronics. The requirements of ultra-thin, high brightness, large screen occupation ratio and the like lead to shorter and shorter development period of the backlight source. A large amount of materials are quickly added, so that the backlight bears a large abnormal risk when mass production is carried out at the initial stage of the product, particularly a light guide plate of the backlight.
It is known to use a backlight in conjunction with a liquid crystal display, where the backlight provides backlight to effect display on the liquid crystal display. As a main member of the backlight, the light guide plate has large rigidity against the backlight, such as size, optical performance, and signal resistance. In a specific production process, the light guide plate is molded through a mold, so that a plurality of molds and a plurality of cavities are used for producing the light guide plate. Once the light guide plate of a certain hole number is abnormal, all the light guide plates produced by the hole number cannot be selected in the assembling process of the backlight source, and then the light guide plates which are abnormal in the production process are easily assembled into the electronic equipment.
In order to solve the problems, at present, the hole numbers are usually added into the light guide plate produced by the hole numbers in a manual code spraying mode, but the dependence of hole number marking on management is large in a manual mode, and once the hole number spraying is wrong, the selection disorder can be caused, and large production loss can still be caused.
Disclosure of Invention
The invention discloses a light guide plate, which aims to solve the problem that the hole number is difficult to identify in the conventional light guide plate.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a light guide plate, is applied to the backlight, includes the light guide plate main part, the light guide plate main part deviates from the face of the luminous side of backlight includes first region and second region, first region surrounds the second region, first region with the second region all is provided with a plurality of interval distribution's first optics arch, the second region is provided with a plurality of interval distribution's second optics arch, is perpendicular in the direction of face, the bellied projection area of first optics is greater than the bellied projection area of second optics.
A backlight source comprises the light guide plate.
An electronic device comprising a backlight as described above.
A light guide plate hole number identification method, wherein the light guide plate is the light guide plate described above, and the light guide plate hole number identification method comprises the following steps:
establishing a corresponding relation between the characteristic information of the second area and the hole number of the light guide plate;
acquiring an image of a backlight source in a lighting state;
determining the characteristic information of the second area according to the brightness distribution of the image;
and acquiring the hole number of the light guide plate according to the characteristic information of the second area.
A hole number identification device for a light guide plate, the light guide plate being as described above, the light guide plate hole number identification device comprising:
the establishing unit is used for establishing a corresponding relation between the characteristic information of the second area and the hole number of the light guide plate;
an acquisition unit configured to acquire an image of a backlight in a lit state;
a first determination unit configured to determine feature information of the second region from a luminance distribution of the image;
a second determination unit configured to acquire a hole number of the light guide plate according to the feature information of the second area.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the light guide plate disclosed by the invention improves the existing structure, and the first optical bulges are arranged in the first area and the second area by dividing the main body of the light guide plate into the first area and the second area, and a second optical protrusion is additionally arranged in the second area, and the second optical protrusion can make the area corresponding to the backlight source equipped with the light guide plate brighter, so that the high-brightness area formed by the second area becomes the set mark when the backlight source is in the lighting state, and the second area corresponding to the hole number is arranged on the light guide plate, therefore, once the light guide plate produced by a certain hole number is abnormal, an operator can accurately select all abnormal light guide plates under the corresponding hole number according to the characteristic information of the highlight area corresponding to the second area, and then stop the follow-up equipment of unusual light guide plate in time, finally can avoid unnecessary loss.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a backlight disclosed in the embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a light guide plate according to an embodiment of the present invention;
FIG. 4 is an optical schematic view of a light guide plate according to an embodiment of the disclosure;
fig. 5 to 8 are schematic light-emitting diagrams of backlights provided with light guide plates with different structures according to embodiments of the present disclosure.
Description of reference numerals:
100-light guide plate, 110-light guide plate body, 111-first region, 112-second region, 120-first optical protrusion, 130-second optical protrusion,
200-luminous body, 210-circuit board, 300-support frame, 400-rubber frame, 500-diffusion sheet, 600-lower prism sheet, 700-upper prism sheet, 800-shading adhesive tape, 900-reflection film and A-highlight area.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 8, an embodiment of the invention discloses a light guide plate 100, the disclosed light guide plate 100 is applied to a backlight, and the disclosed light guide plate 100 includes a light guide plate body 110, a plurality of first optical protrusions 120 and a plurality of second optical protrusions 130.
The light guide plate body 110 has a plate-shaped structure, the light guide plate body 110 is a main body portion of the light guide plate 100, and the light guide plate body 110 mainly plays a role of guiding light. The plate surface of the light guide plate body 110 on the light emitting side facing away from the backlight includes a first region 111 and a second region 112. The light emitting side of the light guide plate body 110 facing away from the backlight refers to a side of the light guide plate body 110 facing away from the display screen of the electronic device.
The first region 111 surrounds the second region 112, specifically, the first region 111 may be partially surrounded outside the second region 112, or may completely surround the second region 112, in which case the first region 111 may be considered to be disposed around the second region 112. In the embodiment of the present invention, the first region 111 and the second region 112 have various positional relationships, and the embodiment of the present invention does not limit the specific positional relationship between the first region 111 and the second region 112.
The first region 111 and the second region 112 are each provided with a plurality of first optical protrusions 120 distributed at intervals, a preset interval is provided between any two adjacent first optical protrusions 120, and the first optical protrusions 120 are present in the first region 111 and the second region 112.
The second region 112 is provided with a plurality of second optical protrusions 130 distributed at intervals, and a preset interval is provided between any two adjacent second optical protrusions 130. The second optical protrusions 130 exist only in the second region 112.
In the embodiment of the present invention, the first optical protrusions 120 and the second optical protrusions 130 may be distributed in various ways, for example, the first optical protrusions 120 and the second optical protrusions 130 are distributed in rows and columns, or distributed in ring-shaped areas. The embodiment of the present invention does not limit the specific distribution manner of the first optical protrusions 120 and the second optical protrusions 130.
In the direction perpendicular to the plate surface of the light guide plate body 110, the projection area of the first optical protrusion 120 is larger than the projection area of the second optical protrusion 130, as shown in fig. 4, because the size of the second optical protrusion 130 is smaller, in the second region 112, in addition to the first optical protrusion 120 playing a role of scattering, the second optical protrusion 130 also scatters light, and to a certain extent, the second optical protrusion 130 scatters light to reinforce the light energy between the first optical protrusions 120, so that the brightness of the second region 112 is higher, and finally, when the backlight source is in a lighting state, the light-filling brightness of the second region 112 is higher. Of course, the light rays projected onto the regions outside the first optical protrusions 120 and the second optical protrusions 130 generally continue to be transmitted in the light guide plate body 110 in the form of total reflection.
In a specific identification process, an image is acquired by the CCD device when the backlight is in a lit state, and the darker the color in the acquired image indicates higher brightness, as shown in fig. 5 to 8, the brightness difference between the first region 111 and the second region 112 cannot be identified by naked eyes, and subsequent resolution can be performed after the image is acquired by the CCD device, so that the light supplement effect of the backlight under the observation of naked eyes is not affected by the arrangement of the second optical protrusion 130.
The light guide plate 100 disclosed in the embodiment of the invention improves the existing structure, by dividing the first region 111 and the second region 112 in the light guide plate main body 110, the first optical protrusions 120 are arranged in both the first region 111 and the second region 112, and the second optical protrusions 130 are additionally arranged in the second region 112, and the second optical protrusions 130 can make the region corresponding to the backlight source configured with the light guide plate 100 brighter, so that the highlight region a formed by the second region 112 becomes a set mark when the backlight source is in a lighting state, and by arranging the second region 112 corresponding to a hole number for the light guide plate 100, once the light guide plate produced by a certain hole number is abnormal, an operator can accurately select all abnormal light guide plates 100 under the corresponding hole number according to the characteristic information of the highlight region a corresponding to the second region 112, and then stop the subsequent assembly of the abnormal light guide plate 100 in time, eventually unnecessary losses can be avoided.
On the premise that the normal function of the light guide plate 100 disclosed in the embodiment of the present invention is not affected, the second optical protrusion 130 is additionally disposed in the second region 112 during the production process of the light guide plate 100, so that the identifiability of the light guide plate 100 can be improved.
In an actual production process, the second region 112 may correspond to a corresponding hole number through its own feature information, and an operator may determine the hole number of the light guide plate 100 faster by identifying the feature information of the highlight region a in the image. In this document, the feature information may be shape information or position information, or may be other information that can be easily recognized.
In order to achieve more uniform brightness in the first region 111, the shape and size of each first optical protrusion 120 may be the same in a more preferable scheme. In this case, in order to achieve more uniform brightness in the second region 112, the shape and size of each of the second optical protrusions 130 may be the same.
In order to further increase the brightness difference between the second region 112 and the first region 111, so that the second region 112 is easier to be captured by the image, in a more preferable scheme, the distribution density of the second optical protrusions 130 may be greater than that of the first optical protrusions 120, in this case, the denser second optical protrusions 130 in the second region 112 cooperatively scatter the light, so that the brightness of the second region 112 can be further increased when the backlight is in the lighting state
In a preferred embodiment, the first optical protrusions 120 may be uniformly distributed, so as to improve the uniformity of light scattering. Similarly, the second optical protrusions 130 may also be uniformly distributed, thereby facilitating to improve the uniformity of light scattering.
The shapes of the first optical protrusion 120 and the second optical protrusion 130 can be various, please refer to fig. 3 to 4 again, in a preferred embodiment, both the first optical protrusion 120 and the second optical protrusion 130 can be hemispherical protrusions, and the hemispherical protrusions have larger scattering surfaces, so as to be more beneficial to scattering light.
In the embodiment of the present invention, the shape of the second area 112 may be various, for example, the second area 112 may be a circular area (as shown in fig. 5 and 6), a triangular area (as shown in fig. 7), a numeric area, a letter-shaped area, a rectangular area, a square area, a cross-shaped area (as shown in fig. 8), and the like, and the embodiment of the present invention does not limit the specific shape of the second area 112.
In the embodiment of the present invention, the position of the second region 112 may be various, and as described above, as shown in fig. 5 to 8, the light guide plate body 110 may include a corner portion, and the second region 112 may be disposed at the corner portion, in which case, the second optical protrusion 130 may be more conveniently disposed.
The first optical protrusion 120 and the second optical protrusion 130 can be formed in various manners, for example, the first optical protrusion 120 and the second optical protrusion 130 can be laser protrusions formed by laser, or can be impact points machined by impact points. The embodiment of the present invention does not limit the molding manner of the first optical protrusion 120 and the second optical protrusion 130.
Also, embodiments of the present invention do not limit the size of the first optical protrusion 120 and the second optical protrusion 130. In one embodiment, the diameter of the first optical protrusion 120 may be 30 μm to 50 μm and the height of the first optical protrusion 120 may be 10 μm to 30 μm, provided that the first optical protrusion 120 is a hemispherical protrusion.
On the premise that the second optical protrusion 130 is a hemispherical protrusion, the diameter of the second optical protrusion 130 may be 10 μm to 25 μm, and the height of the second optical protrusion 130 may be 5 μm to 15 μm.
Based on the light guide plate 100 disclosed in the embodiment of the present invention, the embodiment of the present invention discloses a backlight source, which includes the light guide plate 100 described in the above embodiment.
Referring to fig. 2 again, in one embodiment, the backlight source may include a light emitter 200, a support frame 300, a plastic frame 400, a diffusion sheet 500, a lower prism sheet 600, an upper prism sheet 700, a light-shielding tape 800, and a reflective film 900. The plastic frame 400 is supported by the supporting frame 300, the reflective film 900, the light guide plate 100, the diffusion sheet 500, the lower prism sheet 600, and the upper prism sheet 700 are sequentially stacked in an area surrounded by the plastic frame 400, the light shielding tape 800 is adhered to a surface formed by the top end of the plastic frame 400 and the upper prism sheet 700, and the light emitter 200 is located between the inner wall of the plastic frame 400 and the light guide plate 100.
In general, the light emitting body 200 is electrically connected to a power supply of an electronic device through the circuit board 210 passing through the bezel 400. Specifically, the circuit board 210 may be a flexible circuit board, which has good deformability, so as to better adapt to electrical connection in a more confined environment in the electronic device.
Based on the backlight disclosed by the embodiment of the invention, the embodiment of the invention discloses electronic equipment, and the disclosed electronic equipment comprises the backlight described by the embodiment.
The electronic device disclosed by the embodiment of the invention can be a mobile phone, a tablet computer, an electronic book reader, a game machine, a vehicle-mounted navigator and other devices, and the embodiment of the invention does not limit the specific types of the electronic devices.
Based on the light guide plate 100 disclosed by the embodiment of the invention, the embodiment of the invention discloses a light guide plate hole number identification method, which specifically comprises the following steps:
step one, establishing a corresponding relationship between the characteristic information of the second region 112 and the hole number of the light guide plate 100.
Specifically, feature information of a highlight region a (corresponding to the second region 112) is independently set for each light guide plate corresponding to the hole number, so that a one-to-one correspondence relationship between the hole number and the second region 112 is formed.
And step two, acquiring an image of the backlight source in a lighting state.
An image with the backlight in the lit state is acquired by an image acquisition device (e.g., a CCD device), and is then prepared for the subsequent third and fourth steps.
And step three, determining the characteristic information of the second area 112 according to the brightness distribution of the image.
There may be a highlight area a in the image acquired by the image acquisition apparatus, the highlight area a being formed by the second area 112 to which the second optical protrusion 130 is added, so that the feature information of the second area 112 may be determined by the highlight area a.
And fourthly, acquiring the hole number of the light guide plate 100 according to the shape or position information of the second area 112.
Since the corresponding relationship between the hole number and the second region 112 is pre-established in the first step, the hole number of the light guide plate 100 can be determined according to the corresponding relationship and the characteristic information of the second region 112 in the present step.
Based on the light guide plate hole number identification method disclosed by the embodiment of the invention, the embodiment of the invention discloses a light guide plate hole number identification device, and the disclosed light guide plate hole number identification device comprises:
and a building unit for building a corresponding relationship between the characteristic information of the second region 112 and the hole number of the light guide plate 100.
Specifically, a shape or position of the highlight region a (corresponding to the second region 112) is independently set for each light guide plate corresponding to the cavity number, so as to form a one-to-one correspondence relationship between the cavity number and the second region 112.
And the acquisition unit is used for acquiring the image of the backlight source in a lighting state.
An image in which the backlight is in a lit state is acquired by an image acquisition device (e.g., a CCD device) for use by the first determination unit and the second determination unit.
A first determination unit for determining feature information of the second region 112 from the luminance distribution of the image.
There may be a highlight area a in the image acquired by the image acquisition apparatus, the highlight area a being formed by the second area 112 to which the second optical protrusion 130 is added, so that the feature information of the second area 112 may be determined by the highlight area a.
And a second determination unit for acquiring the pit number of the light guide plate 100 from the feature information of the second region 112.
Since the establishing unit establishes the correspondence between the hole numbers and the second regions 112 in advance, the second determining unit may determine the hole numbers of the light guide plate 100 according to the correspondence and the feature information of the second regions 112.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The light guide plate (100) is applied to a backlight source and is characterized by comprising a light guide plate body (110), wherein a plate surface of the light guide plate body (110) facing away from a light emitting side of the backlight source comprises a first area (111) and a second area (112), the first area (111) surrounds the second area (112), the first area (111) and the second area (112) are respectively provided with a plurality of first optical protrusions (120) distributed at intervals, the second area (112) is provided with a plurality of second optical protrusions (130) distributed at intervals, and in a direction perpendicular to the plate surface, the projection area of the first optical protrusions (120) is larger than the projection area of the second optical protrusions (130).
2. The light guide plate (100) according to claim 1, wherein the distribution density of the second optical protrusions (130) is greater than the distribution density of the first optical protrusions (120).
3. The light guide plate (100) according to claim 1, wherein the first optical protrusions (120) and the second optical protrusions (130) are each a hemispherical protrusion.
4. The light guide plate (100) according to claim 1, wherein the second region (112) is a circular region, a triangular region, a numeric region, a letter-shaped region, a rectangular region, or a square region.
5. The light guide plate (100) according to claim 1, wherein the first region (111) is arranged around the second region (112).
6. A backlight characterized by comprising the light guide plate (100) of any one of claims 1 to 5.
7. The backlight according to claim 6, further comprising a light emitter (200), a support frame (300), a plastic frame (400), a diffusion sheet (500), a lower prism sheet (600), an upper prism sheet (700), a light blocking tape (800), and a reflective film (900), wherein the plastic frame (400) is supported by the support frame (300), the reflective film (900), the light guide plate (100), the diffusion sheet (500), the lower prism sheet (600), and the upper prism sheet (700) are sequentially stacked in an area surrounded by the plastic frame (400), the light blocking tape (800) is adhered on a surface formed by a top end of the plastic frame (400) and the upper prism sheet (700), and the light emitter (200) is located between an inner wall of the plastic frame (400) and the light guide plate (100).
8. An electronic device characterized by comprising the backlight of claim 6 or 7.
9. A light guide plate hole number identification method, wherein the light guide plate is the light guide plate (100) according to any one of claims 1 to 5, the light guide plate hole number identification method comprising:
establishing a corresponding relation between the characteristic information of the second area (112) and the hole number of the light guide plate (100);
acquiring an image of a backlight source in a lighting state;
determining feature information of the second region (112) from a luminance distribution of the image;
acquiring the hole number of the light guide plate (100) according to the characteristic information of the second area (112).
10. A hole number identification device of a light guide plate, wherein the light guide plate is the light guide plate (100) of any one of claims 1 to 5, the light guide plate hole number identification device comprising:
an establishing unit for establishing a correspondence between the characteristic information of the second area (112) and the hole number of the light guide plate (100);
an acquisition unit configured to acquire an image of a backlight in a lit state;
a first determination unit for determining feature information of the second region (112) from a luminance distribution of the image;
a second determination unit for acquiring a hole number of the light guide plate (100) from the feature information of the second area (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219131.8A CN110873923B (en) | 2019-11-29 | 2019-11-29 | Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219131.8A CN110873923B (en) | 2019-11-29 | 2019-11-29 | Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110873923A true CN110873923A (en) | 2020-03-10 |
| CN110873923B CN110873923B (en) | 2021-01-08 |
Family
ID=69718272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911219131.8A Active CN110873923B (en) | 2019-11-29 | 2019-11-29 | Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110873923B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327201A (en) * | 2020-10-27 | 2021-02-05 | 惠州市特创电子科技有限公司 | Lamp panel model distinguishing jig and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149627A (en) * | 2013-04-02 | 2013-06-12 | 深圳安嵘光电产品有限公司 | Light-guiding plate with holes and manufacturing method thereof |
| CN203757522U (en) * | 2014-03-31 | 2014-08-06 | 北京京东方茶谷电子有限公司 | Backlight module and display device |
| CN105856816A (en) * | 2016-03-30 | 2016-08-17 | 乐视控股（北京）有限公司 | Screen printing plate, light guide plate, display equipment and manufacturing method of light guide plate |
| CN109581749A (en) * | 2019-01-31 | 2019-04-05 | 鸿富锦精密工业（深圳）有限公司 | Display device |
-
2019
- 2019-11-29 CN CN201911219131.8A patent/CN110873923B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149627A (en) * | 2013-04-02 | 2013-06-12 | 深圳安嵘光电产品有限公司 | Light-guiding plate with holes and manufacturing method thereof |
| CN203757522U (en) * | 2014-03-31 | 2014-08-06 | 北京京东方茶谷电子有限公司 | Backlight module and display device |
| CN105856816A (en) * | 2016-03-30 | 2016-08-17 | 乐视控股（北京）有限公司 | Screen printing plate, light guide plate, display equipment and manufacturing method of light guide plate |
| CN109581749A (en) * | 2019-01-31 | 2019-04-05 | 鸿富锦精密工业（深圳）有限公司 | Display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327201A (en) * | 2020-10-27 | 2021-02-05 | 惠州市特创电子科技有限公司 | Lamp panel model distinguishing jig and device |
| CN112327201B (en) * | 2020-10-27 | 2023-11-14 | 惠州市特创电子科技股份有限公司 | Lamp panel type number distinguishing jig and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110873923B (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109683399B (en) | Display module and display device | |
| CN102059865B (en) | Light-guiding plate and printing method thereof and backlight module | |
| US10578919B2 (en) | Light guide assembly, fabrication method thereof, backlight module and display device | |
| US9134463B2 (en) | Optical film having improved optical performance, and backlight unit comprising the same | |
| CN102297361A (en) | Backlight unit and display device | |
| US10317610B2 (en) | Illumination device and display device | |
| JP2004039640A (en) | Light guide, back light assembly therewith, and liquid crystal display | |
| WO2019007068A1 (en) | Backlight module and display apparatus | |
| CN102287682A (en) | Backlight unit and display device | |
| JP2016224389A (en) | Lens, light emitting device, and backlight module | |
| CN101886778A (en) | Backlight module and liquid crystal display device | |
| CN114335382A (en) | Display module and preparation method thereof | |
| KR20090017442A (en) | Condensing film for lcd backlight unit | |
| KR20110012650A (en) | Backlight unit and display apparatus thereof | |
| CN110873923B (en) | Light guide plate, backlight source, electronic equipment, light guide plate hole number identification method and device | |
| JP6311569B2 (en) | Surface light source device, display device, and electronic device | |
| CN108845457A (en) | Backlight module and its control method and display equipment | |
| CN201706345U (en) | Backlight module and liquid crystal displaying device | |
| KR20100076828A (en) | Liquid crystal display device | |
| CN103137029A (en) | Light-emitting diode (LED) display device | |
| US10782469B2 (en) | Light guide plate and its fabricating method, as well as backlight module | |
| CN114019719B (en) | Backlight module and display device | |
| CN203349049U (en) | Light source module and keyboard with same | |
| KR101343118B1 (en) | Light guide plate with variably arranged both sided pattern | |
| KR20110012547A (en) | Backlight unit and display apparatus thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |