CN111444841A - Display assembly and electronic equipment - Google Patents
Display assembly and electronic equipment Download PDFInfo
- Publication number
- CN111444841A CN111444841A CN202010224327.2A CN202010224327A CN111444841A CN 111444841 A CN111444841 A CN 111444841A CN 202010224327 A CN202010224327 A CN 202010224327A CN 111444841 A CN111444841 A CN 111444841A
- Authority
- CN
- China
- Prior art keywords
- display
- display module
- touch area
- optical signal
- receiver
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 65
- 238000002834 transmittance Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 239000010408 film Substances 0.000 claims description 28
- 239000012788 optical film Substances 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/147—Details of sensors, e.g. sensor lenses
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Human Computer Interaction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
An embodiment of the present invention provides a display module and an electronic device, where the display module includes: a display module; the emitter is arranged on the non-display side of the display module and used for emitting optical signals to the display module; the receiver is arranged on the non-display side of the display module, and receives the optical signal reflected by the barrier when the barrier stops against the display side of the display module; the transmittance of the optical signal of the touch area of the display module is greater than that of the non-touch area, and the touch area comprises a transmission area of the optical signal emitted by the emitter and a transmission area of the optical signal received by the receiver. The display module can reduce the loss of optical signals, improve the transmittance of light signals, enhance the intensity of the optical signals received by the receiver from the non-display side of the display module, and can acquire clear images of fingerprints when the display side of the display module is touched by fingers, so that the fingerprint imaging effect and the recognition rate are improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display assembly and electronic equipment.
Background
In comprehensive screen cell-phone, when setting up the fingerprint touch-control in the demonstration side of display screen, will acquire the image of fingerprint, as shown in fig. 1, light that the fingerprint light source sent need be through twice display module assembly 1, it all can lead to light loss to pass display module assembly 1 at every turn, light pierces through display module assembly 1 twice and can lead to the serious reduction of luminance of light, can't obtain enough clear fingerprint image, can not accurately acquire fingerprint image, bring inconvenience for using the fingerprint touch-control, user's use experience has been reduced.
Disclosure of Invention
In view of this, the present invention provides a display module and an electronic device, so as to solve the problems that light emitted from a fingerprint light source is seriously lost after passing through a display module, and a clear image of a fingerprint is not easily obtained.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, a display assembly according to an embodiment of the present invention includes:
a display module;
the emitter is arranged on the non-display side of the display module;
the receiver is arranged on the non-display side of the display module;
the transmittance of the optical signal of the touch area of the display module is greater than that of the non-touch area, and the touch area comprises a transmission area of the optical signal emitted by the emitter and a transmission area of the optical signal received by the receiver.
In a second aspect, an electronic device according to an embodiment of the invention includes the display module of the above embodiment.
The technical scheme of the invention has the following beneficial effects:
according to the display module provided by the embodiment of the invention, the emitter is arranged on the non-display side of the display module and used for emitting optical signals to the display module, the receiver is arranged on the non-display side of the display module, when an obstacle abuts against the display side of the display module, the receiver receives the optical signals reflected by the obstacle, the transmittance of the optical signals in the touch area of the display module is greater than that of the non-touch area, and the touch area comprises the transmission area of the optical signals emitted by the emitter and the transmission area of the optical signals received by the receiver. According to the display assembly, the light signal is emitted from the non-display side of the display module to the display module through the emitter, when an obstacle (such as a finger) abuts against the display side of the display module, the obstacle reflects the light signal emitted by the emitter, the receiver receives the light signal reflected by the obstacle from the non-display side of the display module, the transmittance of the light signal in the touch area of the display module is set to be larger than that of the non-touch area, the loss of the light signal can be reduced, the transmittance of the light signal is improved, the intensity of the light signal received by the receiver from the non-display side of the display module is enhanced, when the finger touches the display side of the display module, a clear image of the fingerprint can be obtained, the fingerprint imaging effect and the recognition rate are improved, the use touch of the fingerprint is facilitated, and the use experience of a user is.
Drawings
FIG. 1 is a schematic diagram illustrating a prior art light beam passing through a display module;
FIG. 2 is a schematic structural diagram of a display module according to an embodiment of the present invention;
FIG. 3a is a schematic diagram of pixel density of a non-touch area of a display screen;
FIG. 3b is a schematic diagram of pixel density of a touch area of a display screen;
FIG. 3c is a schematic view of metal traces in a non-touch area of a display screen;
FIG. 3d is a schematic diagram of metal traces in a touch area of a display screen;
FIG. 4a is a schematic view of the position of the light guide plate and the light source;
FIG. 4b is a schematic view of the working principle of the light guide plate;
FIG. 4c is a schematic diagram of a light guide point of a light guide plate blocking light signals;
fig. 4d is a schematic view illustrating a light signal passing through a touch region of the light guide plate when no light guide point is disposed.
Reference numerals
A transmitter 10;
a receiver 20;
a display screen 30; a light guide plate 31; a light source 32;
a diffusion film 33; a light condensing film 34; a light-reflecting film 35;
a support frame 36; a cover plate 37; and a middle frame 38.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The display module according to the embodiment of the present invention is described in detail below.
The display assembly according to the embodiment of the present invention includes a display module, a transmitter 10, and a receiver 20.
Specifically, as shown in fig. 2, the emitter 10 is disposed on the non-display side of the display module, and the emitter 10 is configured to emit an optical signal to the display module; the receiver 20 is arranged on the non-display side of the display module, and when the barrier stops against the display side of the display module, the receiver 20 receives the optical signal reflected by the barrier; the transmittance of the optical signal in the touch area of the display module is greater than that in the non-touch area, and the touch area includes the transmission area of the optical signal emitted by the emitter 10 and the transmission area of the optical signal received by the receiver 20.
That is to say, as shown in fig. 2, the display module mainly includes a display module, a transmitter 10 and a receiver 20, wherein the transmitter 10 may be disposed on a non-display side of the display module, the transmitter 10 may transmit an optical signal to the display module, the receiver 20 may be disposed on the non-display side of the display module, when an obstacle abuts against the display side of the display module, the receiver 20 may receive an optical signal reflected by the obstacle, a transmittance of the optical signal in a touch area of the display module is greater than a transmittance of the non-touch area of the display module, the non-touch area is an area on the display module other than the touch area, the touch area includes a transmission area of the optical signal transmitted by the transmitter 10 and a transmission area of the optical signal received by the receiver 20, so that loss of the optical signal can be reduced, and intensity of the optical signal received by the receiver 20 can. For example, the transmitter 10 can be infrared transmitter, can launch the infrared ray, and the receiver 20 can be infrared camera, when the finger stops to the demonstration side of display module assembly, can acquire the clear image of fingerprint through infrared camera.
According to the display module, the emitter 10 emits the optical signal to the display module from the non-display side of the display module, when an obstacle (such as a finger) abuts against the display side of the display module, the obstacle reflects the optical signal emitted by the emitter 10, the receiver 20 receives the optical signal reflected by the obstacle from the non-display side of the display module, the transmittance of the optical signal in the touch area of the display module is set to be larger than that of the non-touch area, the loss of the optical signal can be reduced, the transmittance of the optical signal is improved, the intensity of the optical signal received by the receiver from the non-display side of the display module is enhanced, when the finger touches the display side of the display module, a clear image of the fingerprint can be obtained, the fingerprint imaging effect and the recognition rate are improved, the use touch of the fingerprint is facilitated, and the use experience of a user is improved.
In some embodiments of the present invention, as shown in fig. 2, the display module includes a display screen 30, and the transmittance of the optical signal in the touch area of the display screen 30 is greater than the transmittance of the optical signal in the non-touch area, so as to reduce the loss of the optical signal caused by the display screen 30; and/or a backlight source, which may be disposed on the non-display side of the display screen 30, where a transmittance of an optical signal in a touch area of the backlight source is greater than a transmittance of an optical signal in a non-touch area of the backlight source, so as to reduce loss of the optical signal caused by the backlight source and improve intensity of the optical signal received by the receiver 20.
Optionally, the pixel density of the touch area of the display screen 30 is less than the pixel density of the non-touch area of the display screen 30, for example, the pixel density of the non-touch area of the display screen 30 may be as shown in fig. 3a, the pixel density of the touch area of the display screen 30 may be as shown in fig. 3b, the metal traces of the non-touch area of the display screen 30 may be as shown in fig. 3c, and the metal traces of the touch area of the display screen 30 may be as shown in fig. 3d, and after the pixel density of the touch area of the display screen 30 is reduced, the number of the metal traces of the touch area of the display screen 30 is correspondingly reduced, so that the transmittance of the light ray number is increased, and the loss of the light ray number caused by the display screen 30 is.
In some embodiments, as shown in fig. 2, a cover plate 37 may be further included, the cover plate 37 may be transparent, the cover plate 37 may be disposed on the display side of the display screen 30, and the cover plate 37 may protect the display module.
In other embodiments, as shown in fig. 2, a middle frame 38 may be further included, a cover plate 37 may be disposed on the middle frame 38, the cover plate 37 may be adhered to the middle frame 38 by an adhesive tape, and the display module, the transmitter 10, and the receiver 20 may be disposed between the cover plate 37 and the middle frame 38.
In an embodiment of the present invention, as shown in fig. 2, the backlight source may include a light guide plate 31 and one or more light sources 32, the light sources 32 may be disposed at an end of the light guide plate 31, the light guide plate 31 may guide light emitted from the light sources 32 to the whole surface, the light sources 32 may be one or more light sources, as shown in fig. 4a, a plurality of light sources 32 may be disposed at ends of the light guide plate 31 at regular intervals, the light sources 32 may emit light to the light guide plate 31, and the light sources 32 may be white light sources such as light Emitting diodes (L light Emitting diodes, L ED) and the light guide plate 31 is disposed between the display screen 30 and the emitters 10 and the receiver 20, the transmittance of light signals in a touch region of the light guide plate 31 is greater than that in a non-touch region, the frequency of light emitted from the light sources 32 is different from that of the emitters 10, so that the receiver 20 accurately receives the light signals emitted from the emitters 10, and a clear image of a fingerprint can.
The backlight source can also include the flexible circuit board, and the flexible circuit board is connected with light source 32, can control light source 32 through the flexible circuit board, and the flexible circuit board can set up between light source 32 and the display module assembly, and light source 32 and display module assembly can be through bonding connection.
Optionally, as shown in fig. 4a and 4d, a plurality of light guide points may be disposed in a region outside the touch region on a surface of one side of the light guide plate 31 away from the display screen 30, and the plurality of light guide points may be uniformly distributed at intervals, as shown in fig. 4b, light emitted from the light source 32 can be guided to the whole surface through the light guide points, so that light loss is reduced, and light utilization rate is improved; as shown in fig. 4c, if the light guide point is disposed at the position of the touch region on the side surface of the light guide plate 31 away from the display screen 30, the light guide point may affect the transmission of the light signal emitted by the emitter 10, and the light guide point may block the light signal, so that the light signal received by the receiver 20 is reduced, and therefore, as shown in fig. 4d, the light guide point is not disposed at the position of the touch region on the side surface of the light guide plate 31 away from the display screen 30, the loss of the light signal due to the light guide point can be avoided, and the light signal received by the receiver 20 is increased.
In some embodiments of the present invention, the display module includes an optical film, the optical film is disposed between the backlight source and the display screen 30, and the optical film may be used to collect and/or homogenize light emitted from the backlight source, optionally, a touch area of the optical film may be an opening, and a transmittance of an optical signal in the touch area of the optical film is greater than a transmittance of an optical signal in a non-touch area, so as to avoid a loss of the optical signal due to the optical film.
In other embodiments, as shown in fig. 2, the optical film may include a diffusion film 33 and a condensing film 34, the diffusion film 33 may be disposed on the light guide plate 31 and the condensing film 34, light emitted from the light guide plate 31 is uniform through the diffusion film 33, the light emitted from the light guide plate 31 can be converged through the condensing film 34 after passing through the condensing film 34, so as to improve light utilization rate and enhance light intensity and brightness, openings may be respectively formed in touch areas of the diffusion film 33 and the condensing film 34, and loss of optical signals caused by the diffusion film 33 and the condensing film 34 is avoided.
In the embodiment of the present invention, as shown in fig. 2, the display module includes a reflective film 35, the reflective film 35 is disposed between the backlight and the emitter 10 and the receiver 20, the reflective film 35 can improve the utilization rate of the light of the backlight, the transmittance of the optical signal in the touch area of the reflective film 35 is greater than the transmittance of the optical signal in the non-touch area, and the loss of the optical signal caused by the reflective film 35 is reduced. The touch area of the reflective film 35 may be an opening, so as to avoid the loss of optical signals caused by the reflective film 35. The backlight source may include a light guide plate 31 and a light source 32, a reflective film 35 may be disposed between the light guide plate 31 and the emitter 10 and the receiver 20, and the reflective film 35 may improve the utilization rate of light of the light guide plate 31.
In some embodiments, as shown in fig. 2, a supporting frame 36 may be further included, the reflective film 35 may be disposed on the supporting frame 36, the supporting frame 36 may be disposed between the reflective film 35 and the transmitter 10 and the receiver 20, the transmitter 10 and the receiver 20 may be connected to the supporting frame 36, and an opening may be disposed in a position of the supporting frame 36 corresponding to the touch area, so as to avoid loss of the optical signal due to the supporting frame 36.
The embodiment of the invention also provides electronic equipment, and the electronic equipment comprises the display component in the embodiment. When being applied to electronic equipment with the display module in the embodiment, when pointing the demonstration side of touch-control display module assembly, can acquire the clear image of fingerprint, accurately acquire fingerprint image, the use fingerprint touch-control of being convenient for improves user's use and experiences.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A display assembly, comprising:
a display module;
the emitter is arranged on the non-display side of the display module;
the receiver is arranged on the non-display side of the display module;
the transmittance of the optical signal of the touch area of the display module is greater than that of the non-touch area, and the touch area comprises a transmission area of the optical signal emitted by the emitter and a transmission area of the optical signal received by the receiver.
2. The display assembly of claim 1, wherein the display module comprises:
the display screen is characterized in that the transmittance of an optical signal of a touch area of the display screen is greater than that of an optical signal of a non-touch area; and/or
The backlight source is arranged on the non-display side of the display screen, and the transmittance of the optical signal of the touch area of the backlight source is greater than that of the optical signal of the non-touch area.
3. The display assembly of claim 2, wherein a pixel density of the touch area of the display screen is less than a pixel density of the non-touch area.
4. The display assembly of claim 2, wherein the backlight source comprises:
the light source is arranged at the end of the light guide plate, the light guide plate is arranged between the display screen and the transmitter and between the display screen and the receiver, the transmittance of the optical signals of the touch area of the light guide plate is greater than that of the optical signals of the non-touch area, and the frequency of the optical signals emitted by the light source is different from that of the optical signals emitted by the transmitter.
5. The display assembly according to claim 4, wherein a plurality of light guide points are disposed on a surface of the light guide plate away from the display screen, the surface being outside the touch area.
6. The display assembly of claim 2, wherein the display module comprises:
and the optical film is arranged between the backlight source and the display screen, and the transmittance of the optical signal of the touch area of the optical film is greater than that of the optical signal of the non-touch area.
7. The display assembly of claim 6, wherein the touch area of the optical film is an aperture.
8. The display assembly of claim 2, wherein the display module comprises:
the reflective film is arranged between the backlight source and the emitter and between the backlight source and the receiver, and the transmittance of the optical signal of the touch area of the reflective film is greater than that of the optical signal of the non-touch area.
9. The display assembly of claim 8, wherein the touch-sensitive area of the reflective film is an opening.
10. An electronic device, comprising the display assembly of any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224327.2A CN111444841B (en) | 2020-03-26 | 2020-03-26 | Display assembly and electronic equipment |
| PCT/CN2021/082293 WO2021190479A1 (en) | 2020-03-26 | 2021-03-23 | Display assembly and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224327.2A CN111444841B (en) | 2020-03-26 | 2020-03-26 | Display assembly and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111444841A true CN111444841A (en) | 2020-07-24 |
| CN111444841B CN111444841B (en) | 2024-01-26 |
Family
ID=71652576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010224327.2A Active CN111444841B (en) | 2020-03-26 | 2020-03-26 | Display assembly and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111444841B (en) |
| WO (1) | WO2021190479A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190479A1 (en) * | 2020-03-26 | 2021-09-30 | 维沃移动通信有限公司 | Display assembly and electronic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061946A (en) * | 2018-08-31 | 2018-12-21 | Oppo广东移动通信有限公司 | Display screen component and electronic equipment |
| CN109886140A (en) * | 2019-01-28 | 2019-06-14 | 上海天马有机发光显示技术有限公司 | Display panel and preparation method thereof and display device |
| CN110275641A (en) * | 2019-06-28 | 2019-09-24 | Oppo广东移动通信有限公司 | Electronic device and the lower optical finger print mould group of screen |
| CN110458153A (en) * | 2019-09-09 | 2019-11-15 | 上海思立微电子科技有限公司 | Fingerprint recognition system and electronic equipment |
| CN110596931A (en) * | 2019-09-18 | 2019-12-20 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
| CN110619305A (en) * | 2019-09-18 | 2019-12-27 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9323393B2 (en) * | 2013-06-03 | 2016-04-26 | Qualcomm Incorporated | Display with peripherally configured ultrasonic biometric sensor |
| CN109270988A (en) * | 2018-08-31 | 2019-01-25 | Oppo广东移动通信有限公司 | Display screen component and electronic equipment |
| CN111444841B (en) * | 2020-03-26 | 2024-01-26 | 维沃移动通信有限公司 | Display assembly and electronic equipment |
-
2020
- 2020-03-26 CN CN202010224327.2A patent/CN111444841B/en active Active
-
2021
- 2021-03-23 WO PCT/CN2021/082293 patent/WO2021190479A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061946A (en) * | 2018-08-31 | 2018-12-21 | Oppo广东移动通信有限公司 | Display screen component and electronic equipment |
| CN109886140A (en) * | 2019-01-28 | 2019-06-14 | 上海天马有机发光显示技术有限公司 | Display panel and preparation method thereof and display device |
| CN110275641A (en) * | 2019-06-28 | 2019-09-24 | Oppo广东移动通信有限公司 | Electronic device and the lower optical finger print mould group of screen |
| CN110458153A (en) * | 2019-09-09 | 2019-11-15 | 上海思立微电子科技有限公司 | Fingerprint recognition system and electronic equipment |
| CN110596931A (en) * | 2019-09-18 | 2019-12-20 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
| CN110619305A (en) * | 2019-09-18 | 2019-12-27 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190479A1 (en) * | 2020-03-26 | 2021-09-30 | 维沃移动通信有限公司 | Display assembly and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021190479A1 (en) | 2021-09-30 |
| CN111444841B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9141235B2 (en) | Optical position detecting device and display device with position detecting function | |
| US8130210B2 (en) | Touch input system using light guides | |
| CN107092311B (en) | Display screen, display device and mobile terminal | |
| Hodges et al. | ThinSight: versatile multi-touch sensing for thin form-factor displays | |
| WO2020077498A1 (en) | Light emitting device, biometric feature detection device, and electronic apparatus | |
| US20110043826A1 (en) | Optical information input device, electronic device with optical input function, and optical information input method | |
| CN101989155A (en) | Optical position detection apparatus and display apparatus having position detection function | |
| KR20120058594A (en) | Interactive input system with improved signal-to-noise ratio (snr) and image capture method | |
| US10254791B1 (en) | Portable electronic device | |
| KR101303443B1 (en) | Liquid Crystal Display | |
| US20150035799A1 (en) | Optical touchscreen | |
| CN108334841A (en) | The production method of display panel, display device and display panel | |
| KR20090092878A (en) | Infrared ray touch screen | |
| CN110619305A (en) | Display screen assembly and electronic equipment | |
| CN110598657B (en) | Optical fingerprint identification electronic equipment under screen | |
| CN209707863U (en) | Electronic equipment and its back light unit and sensing mould group | |
| WO2021190481A1 (en) | Display assembly and electronic device | |
| CN111444841A (en) | Display assembly and electronic equipment | |
| Izadi et al. | Thinsight: a thin form-factor interactive surface technology | |
| EP3816849A1 (en) | Under-screen fingerprint identification | |
| CN212160687U (en) | Biological characteristic detection device | |
| US20210089200A1 (en) | Display device and control method thereof | |
| JP5007732B2 (en) | POSITION DETECTION METHOD, OPTICAL POSITION DETECTION DEVICE, DISPLAY DEVICE WITH POSITION DETECTION FUNCTION, AND ELECTRONIC DEVICE | |
| US20120169666A1 (en) | Optical touch-sensing liquid crystal panel, optical touch-sensing panel and method of determining touch position | |
| EP4083695A1 (en) | Liquid crystal module, electronic device and screen interaction system |
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 |