CN113267935A - Electronic terminal - Google Patents
Electronic terminal Download PDFInfo
- Publication number
- CN113267935A CN113267935A CN202110533349.1A CN202110533349A CN113267935A CN 113267935 A CN113267935 A CN 113267935A CN 202110533349 A CN202110533349 A CN 202110533349A CN 113267935 A CN113267935 A CN 113267935A
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- electronic terminal
- diffusion
- light guide
- 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
Links
Images
Classifications
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of display, and discloses an electronic terminal, which comprises: the light emitting assembly comprises a plurality of light sources distributed along the light incident side of the light guide plate, and the light emergent direction of each light source faces to the light incident side of the light guide plate; a light diffusion member disposed between the light incident side of the light guide plate and the light source, the light diffusion member including a mixed transparent glue and diffusion powder; and the reflecting surface of the electronic paper display screen module faces to the light emergent side of the light guide plate, and light emitted by the light guide plate is reflected to the eyes of a reader through the reflecting surface of the electronic paper display module. The transparent adhesive tape provides positioning support for the diffusion powder, light beams emitted by the light source penetrate through the transparent adhesive tape after entering the light diffusion part and are diffused by the diffusion powder, the light beams are diffused to a larger degree after being diffused, and light mixing of the light beams of the adjacent light sources can be realized only in a shorter optical path, so that the electronic terminal can narrow the bottom frame and reduce the screen occupation ratio.
Description
The present application claims priority of chinese patent application entitled "an ultra narrow bezel reflective screen module" filed by chinese patent office on 2021, 05/01/78, application No. 202110007846.8, the entire contents of which are incorporated herein by reference.
Technical Field
The invention relates to the technical field of display, in particular to an electronic terminal.
Background
At present, in the electronic terminal of the reflective screen module in the market, the peripheral frame is wide, especially the bottom frame (the whole machine chin) is wide, so that the screen occupation ratio is low. The main reason for the low screen occupation ratio is that the distance of the light mixing area of the front light of the reflective module is long, that is, the light mixing optical path from the light outlet of the front light LED lamp to the ink screen AA area is large.
The principle that the distance between the light mixing areas is long can be specifically referred to fig. 1, a plurality of LED lamps M are distributed at intervals on the light incident side of the light guide plate S, light beams emitted by each LED lamp are incident into the light guide plate S, the light beams emitted by each LED lamp are all in a diffusion type, and a certain interval is reserved between adjacent LED lamps, so that the light beams need to be mixed together in the light mixing area S1 after entering the light guide plate S, and then enter the light equalizing area S2, the light equalizing area S2 is used for providing front light for a display screen, and a user visible display area S3 is arranged in the light equalizing area S2. Due to the existence of the light mixing area S1, the bottom frame is too wide, the proportion of the light homogenizing area S2 is small, the user visible display area S3 is small, and the screen occupation ratio is low.
Aiming at the problems that the optical path of front light of equipment used by the existing reflective screen module is long and the occupation ratio of the whole screen is low, electronic terminal manufacturers of the reflective screen module mostly adopt the design of increasing the number of light-mixing LED lamps and improving the dot density of a light-guiding film for narrowing the chin so as to make up the design defect caused by the shortened optical path of the front light, and the whole screen module has limitation in design.
Disclosure of Invention
The invention discloses an electronic terminal which is used for solving the technical problem of low screen occupation ratio.
In a first aspect, an electronic terminal is provided, which includes: the light emitting assembly comprises a plurality of light sources distributed along the light incident side of the light guide plate, and the light emergent direction of each light source faces to the light incident side of the light guide plate; a light diffusion member disposed between the light incident side of the light guide plate and the light source, the light diffusion member including a mixed transparent glue and diffusion powder; the electronic paper display screen module is characterized in that the reflection surface of the electronic paper display screen module faces the light emergent side of the light guide plate, and light emitted by the light guide plate is reflected to eyes of a reader through the reflection surface of the electronic paper display module so that the reader can clearly see display contents.
In the above-mentioned electronic terminal, because the light diffusion part is arranged between the light incident side of the light guide plate and the light emitting component, and the light diffusion part comprises the mixed transparent adhesive and the diffusion powder, the transparent adhesive provides positioning support for the diffusion powder, the light beam emitted by the light source can pass through the transparent adhesive after entering the light diffusion part and can be diffused by the diffusion powder therein, the divergence degree of the light beam after diffusion is larger, and the light mixing of the light beams of the adjacent light sources can be realized only in a shorter optical path, thereby the electronic terminal can narrow the bottom frame, and the screen occupation ratio is reduced.
Optionally, the diffusion powder is uniformly distributed in the transparent adhesive tape.
Optionally, the weight ratio of the diffusion powder to the transparent adhesive is between 0.1% and 10%.
Optionally, the material of the diffusion powder is carbon dioxide, silicon dioxide, or a mixture of carbon dioxide and silicon dioxide.
Optionally, the transparent adhesive is made of UV curable adhesive.
Optionally, the light emitting assembly further comprises a flexible circuit board, and the flexible circuit board is connected with the light guide plate;
each light source is electrically connected with the flexible circuit board.
Alternatively, the light diffusion member is bonded to the light guide plate and the light source, respectively.
Optionally, the light source is an LED lamp bead or a micro LED lamp bar.
Optionally, the flexible circuit board is connected to the light guide plate and covers the light diffusion member, and the light diffusion member is bonded.
Drawings
FIG. 1 is a schematic diagram of a conventional reflective screen module electronic terminal in which LED lamp beads are matched with a light guide plate;
fig. 2 is a schematic diagram of an electronic terminal provided in an embodiment of the present application;
fig. 3 is a longitudinal sectional view illustrating a partial structure of an electronic terminal according to an embodiment of the present disclosure;
fig. 4 shows a schematic view of a dot distribution of a light guide plate in an electronic terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring specifically to fig. 3, the electronic terminal includes: an electronic paper display module 5 and a front light module.
Referring to fig. 2 and 3, the front light module includes: the light source 12 may be LED lamp beads, or other light sources with a light emitting function, such as a micro LED lamp bar, and the light emitting direction of each light source 12 faces the light incident side of the light guide plate 4, and the light guide plate 4 may be made of PMMA (polymethyl methacrylate) or other transparent materials with a light guiding function; a light diffusion member 10, the light diffusion member 10 being disposed between the light incident side of the light guide plate 4 and the light source 12, the light diffusion member 10 comprising a mixed transparent glue and diffusion powder. The reflecting surface of the electronic paper display screen module 5 faces the light-emitting side of the light guide plate 4, and light emitted by the light guide plate 4 is reflected to the eyes of a reader through the reflecting surface of the electronic paper display module 5, so that the reader can clearly see the display content.
In the above-mentioned electronic terminal, because the light diffusion component 10 is arranged between the light incident side of the light guide plate 4 and the light emitting component P, and the light diffusion component 10 includes the mixed transparent adhesive and the diffusion powder, the transparent adhesive provides the positioning support for the diffusion powder, the light beam emitted by the light source 12 can pass through the transparent adhesive after entering the light diffusion component 10 and can be diffused by the diffusion powder therein, the divergence degree of the light beam after diffusion is larger, and the light mixing of the light beams of the adjacent light sources 12 can be realized only in a shorter optical path, thereby, the electronic terminal adopting the front light module can narrow the bottom frame, thereby reducing the screen occupation ratio.
In fig. 3, a lower film (film) layer 3, an upper film (film) layer 2 and a protective cover plate 1 are sequentially arranged on a light emitting side of a light guide plate 4 in a front light module, a first optical adhesive layer 9 is filled between the light guide plate 4 and the lower film (film) layer 3, a second optical adhesive layer 8 is filled between the lower film (film) layer 3 and the upper film (film) layer 2, a third optical adhesive layer 7 is filled between the upper film (film) layer 2 and the protective cover plate 1, and an ink layer 6 is coated on a bottom side of an edge of the protective cover plate 1; and an electronic paper display module (EPD module) 5 is arranged on one side of the light guide plate 4, which is far away from the protective cover plate 1.
With particular reference to fig. 3, the light emitting assembly P further comprises a flexible circuit board 11; each light source 12 is electrically connected to the flexible circuit board 11, and the flexible circuit board 11 is connected to the light guide plate 4, which may be connected by bonding. In the specific assembly, the flexible circuit board 11 and the light guide plate 4 are firstly attached to the light incident side edge of the light guide plate 4, then a glue-shaped material is applied between the light source 12 and the light incident side of the light guide plate 11, the glue-shaped material is cooled and formed to obtain the light diffusion component 10, the glue-shaped material can be formed by mixing glue with high transparency, medium-low fluidity and diffusion powder, in order to ensure that the light beam is uniformly diffused in the light diffusion component 10, the diffusion powder can be uniformly distributed in the transparent glue, wherein the transparent glue can be transparent glue material such as UV curing glue, the diffusion powder can be carbon dioxide, silicon dioxide or mixture material of carbon dioxide and silicon dioxide, the weight ratio of the transparent glue to the diffusion powder is between 0.1% and 10%, for example, 0.1%, 1%, 3%, 4%, 5%, 7% and 10%, when the content is less than 0.1%, the light diffusion effect is not substantial, and when the content is more than 10%, the light transmittance is greatly reduced; in the above-described interval, the higher the concentration of the diffusing powder, the lower the light transmittance of the light-diffusing member 10; the transparent adhesive tape provides positioning for the diffusion powder, so that the diffusion powder can be dispersed, the light transmittance of the light diffusion part 10 can be reduced by the dispersed diffusion powder, light beams emitted by the light source 12 can be scattered when the light beams shuttle to the light diffusion part 10, the overall optical path is enlarged, when the light beams penetrate out of the light diffusion part 10 and enter the light guide plate 11, the light beams are uniform, the light equalizing difficulty of the light guide plate is reduced, the light mixing distance of the light guide plate is further shortened, the required width of a bottom frame of the electronic terminal is narrowed, the proportion of the light equalizing area is increased, the area of a visible display area P of a user is increased, and the screen occupation ratio is effectively improved.
And wherein, form light diffusion part 10 through the mode of gluing, light diffusion part 10 is seamless between light guide plate 4 and light source 12 respectively, and bond together with both, be favorable to the light beam that light source 12 sent to diffuse at light diffusion part 10 all the time, and not pass through the air basically, be favorable to reducing the reverberation between the different materials, and the diffuse reflection effect brought through the diffusion powder improves the light homogeneity of light source department, and then shorten the mixed light distance, and light diffusion part 10 is fixed with light source 12 and light guide plate 4 respectively, be favorable to stably combining between light source 12 and the light guide plate 4, be difficult for rocking, can provide stable light source.
In one embodiment, the flexible circuit board 11 may further cover the light diffusion member 10 and be bonded to the light diffusion member 10, so that the bonding area of the flexible circuit board 11 may be increased, and the probability of separation of the flexible circuit board 11 from the light guide plate 4 may be reduced to some extent.
When the regional size of mixed light of preceding light module was less than 6mm, the dark band problem of bottom can become dominant problem, and utilizes the electronic terminal that this application embodiment provided, and the size in mixed light region can accomplish within 5 mm.
Referring to fig. 4, the dots D manufactured after simulation are present on the light guide plate 4, and are more uniformly displayed to the user after passing through the dots D designed scientifically, wherein the distribution of the dots D is not as dense as up and down, for example, the distribution density of the dots D is reduced for an area with higher light intensity on the bottom incident side, the distribution density of the dots D is reduced for an area with light leakage, and the distribution density of the dots D is increased for an area with weak light intensity, so that the light output of the light guide plate 4 is uniform everywhere.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An electronic terminal, comprising: the light emitting assembly comprises a plurality of light sources distributed along the light incident side of the light guide plate, and the light emergent direction of each light source faces to the light incident side of the light guide plate;
the light diffusion component is arranged between the light inlet side of the light guide plate and the light emitting assembly and comprises mixed transparent glue and diffusion powder;
and the reflecting surface of the electronic paper display screen module faces to the light emergent side of the light guide plate.
2. The electronic terminal of claim 1, wherein the diffusing powder is uniformly distributed within the transparent adhesive.
3. The electronic terminal according to claim 2, wherein the weight ratio of the diffusion powder to the transparent adhesive is between 0.1% and 10%.
4. The electronic terminal according to claim 2, wherein the material of the diffusion powder is carbon dioxide, silicon dioxide, or a mixture of carbon dioxide and silicon dioxide.
5. The electronic terminal according to claim 2, wherein the transparent adhesive is a UV curable adhesive.
6. The electronic terminal of claim 1, wherein the light emitting assembly further comprises a flexible circuit board, the flexible circuit board being connected to the light guide plate;
each light source is electrically connected with the flexible circuit board.
7. The electronic terminal according to claim 6, wherein the light diffusion member is bonded to the light guide plate and the light source, respectively.
8. The electronic terminal of claim 6, wherein the light source is an LED lamp bead or a micro LED lamp bar.
9. The electronic terminal according to claim 6, wherein the flexible circuit board is connected to the light guide plate and covers the light diffusion member, the light diffusion member being bonded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007846 | 2021-01-05 | ||
| CN2021100078468 | 2021-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113267935A true CN113267935A (en) | 2021-08-17 |
Family
ID=77231087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110533349.1A Pending CN113267935A (en) | 2021-01-05 | 2021-05-17 | Electronic terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113267935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114647116A (en) * | 2022-04-26 | 2022-06-21 | 深圳创维－Rgb电子有限公司 | Diffusion plate structure and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598671A (en) * | 2003-09-20 | 2005-03-23 | 鸿富锦精密工业（深圳）有限公司 | Backlight module set, light plate and manufacturing method of light plate |
| CN102967896A (en) * | 2012-11-19 | 2013-03-13 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN103207496A (en) * | 2013-05-07 | 2013-07-17 | 广州奥翼电子科技有限公司 | Electronic paper display device with light source |
| CN203786320U (en) * | 2014-04-21 | 2014-08-20 | 京东方光科技有限公司 | Light guide plate, backlight and display device |
| CN204513110U (en) * | 2015-02-28 | 2015-07-29 | 青岛海信电器股份有限公司 | Backlight module and display unit |
| CN108267810A (en) * | 2018-03-02 | 2018-07-10 | 深圳创维－Rgb电子有限公司 | A kind of light guide plate, backlight module and display equipment |
| CN111505883A (en) * | 2020-04-09 | 2020-08-07 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
-
2021
- 2021-05-17 CN CN202110533349.1A patent/CN113267935A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598671A (en) * | 2003-09-20 | 2005-03-23 | 鸿富锦精密工业（深圳）有限公司 | Backlight module set, light plate and manufacturing method of light plate |
| CN102967896A (en) * | 2012-11-19 | 2013-03-13 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN103207496A (en) * | 2013-05-07 | 2013-07-17 | 广州奥翼电子科技有限公司 | Electronic paper display device with light source |
| CN203786320U (en) * | 2014-04-21 | 2014-08-20 | 京东方光科技有限公司 | Light guide plate, backlight and display device |
| CN204513110U (en) * | 2015-02-28 | 2015-07-29 | 青岛海信电器股份有限公司 | Backlight module and display unit |
| CN108267810A (en) * | 2018-03-02 | 2018-07-10 | 深圳创维－Rgb电子有限公司 | A kind of light guide plate, backlight module and display equipment |
| CN111505883A (en) * | 2020-04-09 | 2020-08-07 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114647116A (en) * | 2022-04-26 | 2022-06-21 | 深圳创维－Rgb电子有限公司 | Diffusion plate structure and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109313703B (en) | Optical fingerprint identification system under screen, backlight module, display screen and electronic equipment | |
| EP1574780B1 (en) | Light guide plate, illuminating device using same, area light source and display | |
| JP5360172B2 (en) | Planar light source device and display device using the same | |
| JP4075000B2 (en) | Surface lighting device | |
| JP4528902B2 (en) | LIGHT SOURCE DEVICE, LIGHTING DEVICE, AND DISPLAY DEVICE | |
| JP2008153057A (en) | Light source unit, backlight unit, and display device | |
| CN107526217B (en) | Side-in backlight module and display device | |
| CN106772771B (en) | Light guide plate, backlight module and display device | |
| KR20170126070A (en) | Display device | |
| CN113841001A (en) | Lighting device | |
| CN113238409A (en) | Light source structure, backlight module and display device | |
| KR101269591B1 (en) | Back light unit and liquid crystal display module using thereof | |
| WO2013137161A1 (en) | Lighting device and display device provided with same | |
| CN113267935A (en) | Electronic terminal | |
| CN106764708A (en) | Light source assembly, backlight module and display device | |
| JP3512133B2 (en) | Light guide plate and side light type surface light source device | |
| CN113156707A (en) | Surface light source device and flat panel display device | |
| US20110221663A1 (en) | Edge type backlighting module | |
| CN113267936B (en) | Electronic terminal | |
| JP2014067688A (en) | Light source module, illumination module and illumination apparatus | |
| JP2018146917A (en) | Frame, surface light source device, display, and electronic apparatus | |
| CN110967891A (en) | Active reflection type display module | |
| KR102421777B1 (en) | Display apparatus | |
| CN211577618U (en) | Display device | |
| CN215769264U (en) | Backlight module, display panel and terminal |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210817 |
|
| RJ01 | Rejection of invention patent application after publication |