CN214201988U - Display device with fingerprint sensing function - Google Patents
Display device with fingerprint sensing function Download PDFInfo
- Publication number
- CN214201988U CN214201988U CN202120386207.2U CN202120386207U CN214201988U CN 214201988 U CN214201988 U CN 214201988U CN 202120386207 U CN202120386207 U CN 202120386207U CN 214201988 U CN214201988 U CN 214201988U
- Authority
- CN
- China
- Prior art keywords
- light
- display device
- blocking members
- light blocking
- photosensitive
- 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.)
- Active
Links
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
-
- 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
- G06V10/141—Control of illumination
-
- 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
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- 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
- G06V40/1347—Preprocessing; Feature extraction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Image Input (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Studio Devices (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
Abstract
The utility model provides a display device, including light source module, liquid crystal layer, drive circuit layer and colored filter layer. The light source module is suitable for providing an illuminating light beam to the finger to generate a sensing light beam with fingerprint information. The liquid crystal layer is configured on the transmission path of the illumination light beam and is provided with a top surface and a bottom surface. The driving circuit layer is configured on the bottom surface of the liquid crystal layer and comprises a plurality of photosensitive assemblies and a plurality of light blocking pieces, and the plurality of photosensitive assemblies are used for receiving the sensing light beams. The color filter layer is arranged on the top surface of the liquid crystal layer. The color filter layer comprises a substrate and a plurality of filter units. The substrate comprises a plurality of openings, the positions of the openings are overlapped with the positions of the photosensitive assemblies in the vertical direction, and the plurality of light blocking members are respectively arranged on the periphery and/or the photosensitive surface of the plurality of photosensitive assemblies.
Description
Technical Field
The present invention relates to an electronic device, and more particularly to a display device with fingerprint sensing function.
Background
In the existing liquid crystal display electronic devices on the market, the embedded fingerprint function is not available. The fingerprint sensing module needs to be attached to the lower part or the periphery of the outer side of the display screen in an add-on (add-on) mode. Specifically, in a smart phone, a fingerprint sensing module is placed under a fingerprint sensing area below a physical function key of the smart phone or the back of a phone body to enable collection of finger fingerprint information.
SUMMERY OF THE UTILITY MODEL
The utility model provides a display device has the sensing fingerprint area of large tracts of land.
The utility model provides a display device, including light source module, liquid crystal layer, drive circuit layer and colored filter layer. The light source module is suitable for providing an illuminating light beam to the finger to generate a sensing light beam with fingerprint information. The liquid crystal layer is configured on the transmission path of the illumination light beam and is provided with a top surface and a bottom surface. The driving circuit layer is configured on the bottom surface of the liquid crystal layer and comprises a plurality of photosensitive assemblies and a plurality of light blocking pieces, and the plurality of photosensitive assemblies are used for receiving the sensing light beams. The color filter layer is arranged on the top surface of the liquid crystal layer. The color filter layer comprises a substrate and a plurality of filter units. The substrate comprises a plurality of openings, the positions of the openings are overlapped with the positions of the photosensitive assemblies in the vertical direction, and the plurality of light blocking members are respectively arranged on the periphery and/or the photosensitive surface of the plurality of photosensitive assemblies.
Based on the above, in the display device of this novel creation, display device includes light source module, liquid crystal layer, drive circuit layer and colored filter layer, and a plurality of photosensitive assembly on drive circuit layer extend to in the liquid crystal layer. Therefore, the fingerprint sensing liquid crystal display device can be applied to an embedded fingerprint sensing liquid crystal display device. The color filter layer includes a substrate including a plurality of openings. The driving circuit layer comprises a plurality of light blocking members, and the positions of the openings are overlapped with the positions of the photosensitive assemblies in the vertical direction. Therefore, the photosensitive assembly can receive the sensing light beam transmitted through the opening. The light-blocking members are respectively arranged around the plurality of photosensitive assemblies or on the photosensitive surfaces, so that the display device can block non-sensing light transmitted in the liquid crystal layer from being transmitted to the photosensitive assemblies by the vertically extending light-blocking member structure. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved.
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a display device according to another embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a display device according to another embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a display device according to another embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present invention.
Description of reference numerals:
100,100A,100B,100C, 100D: a display device;
100,100A,100B, 100C: a display device;
110: a light source module;
120: a liquid crystal layer;
130: a driving circuit layer;
132: a photosensitive assembly;
134,134A,134B,134C, 134D: a light blocking member;
140: a color filter layer;
142: a substrate;
150: a protective cover plate;
210: a first part;
220: a second section;
b, G, R: a light filtering unit;
d1, D2: size;
f: a finger;
l1: an illumination beam;
l2: sensing the light beam;
o: an opening;
s: a sensing surface;
s1: a top surface;
s2: a bottom surface;
t1, T2: height.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the attached drawings. It is to be understood that the drawings are for purposes of illustration and description and are not intended to be limiting. For purposes of clarity, elements may not be drawn to scale. In addition, some components and/or reference numerals may be omitted from some of the drawings. In the description and drawings, the same or similar reference numerals are used to designate the same or similar components. When an element is said to be "disposed" or "connected" … to another element, it can be "directly disposed" or "directly connected" … to the other element or intervening elements may also be present, unless otherwise specified. It is contemplated that elements and features of one embodiment may be beneficially incorporated in other embodiments if applicable without further recitation.
Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention. Please refer to fig. 1. The present embodiment provides a display device 100, which includes a light source module 110, a liquid crystal layer 120, a driving circuit layer 130, and a color filter layer 140. The display device 100 of the embodiment further includes a protective cover plate 150 disposed above the color filter layer 140. The Display device 100 of the present embodiment is an electronic device having a Liquid-Crystal Display (LCD), such as a smart phone, a tablet, a computer, or a general Display, and the present invention is not limited thereto.
The light source module 110 is adapted to provide an illumination light beam L1 to the finger F to generate a sensing light beam L2 with fingerprint information. Specifically, the Light source module 110 is a backlight module for providing Light beams, and may be composed of a Light Emitting component, a Light guide plate, a reflective sheet and/or other optical components, where the Light Emitting component is, for example, a Cold Cathode Fluorescent Lamp (CCFL), an Organic Light-Emitting Diode (OLED), a sub-millimeter Light-Emitting Diode (Mini LED) or a Micro Light-Emitting Diode (Micro LED), and the present invention is not limited thereto.
The liquid crystal layer 120 is disposed on the transmission path of the illumination light beam L1. The liquid crystal layer 120 has a top surface S1 and a bottom surface S2. The liquid crystal layer 120 includes a plurality of liquid crystal molecules adapted to rotate by applying a voltage, thereby controlling the illumination light beams L1 transmitted in different display pixel positions to pass through.
The driving circuit layer 130 is disposed on the liquid crystal layer 120 and connected to the bottom surface S2 of the liquid crystal layer 120. In detail, the driving circuit layer 130 includes a plurality of photosensitive elements 132 and a plurality of light blocking members 134, wherein the plurality of photosensitive elements 132 are configured to receive the sensing light beams L2 and extend into the liquid crystal layer 120, as shown in fig. 1. In other words, the embodiment is an In-Cell (In-Cell) fingerprint sensing liquid crystal display device, In which the photosensitive element 132 is located In the liquid crystal layer 120. The photosensitive element 132 is, for example, a photodiode (photodiode), but the present invention is not limited thereto.
The color filter layer 140 is disposed on the liquid crystal layer 120 and connected to the top surface S1 of the liquid crystal layer 120. The color filter layer 140 includes a substrate 142 and a plurality of filter units R, G, B, wherein the substrate 142 includes a plurality of openings O. The light filtering unit R, G, B is made of red light filtering material, green light filtering material and blue light filtering material, respectively. It should be noted that the term "filter of a single color light material" means that the material can pass the single color light and reflect or absorb other color lights. The positions of the openings O are overlapped with the positions of the photosensitive elements 132 in the vertical direction, and the dimension D1 of the openings O is larger than the dimension D2 of the photosensitive elements 132, so that the photosensitive elements 132 can receive the sensing light beam L2 passing through the openings O. The light blocking members 134 are disposed around the photosensitive elements 132 or on the photosensitive surface S (see fig. 4), respectively. In the embodiment, the light blocking member 144 may be a cylindrical structure, which is disposed around the photosensitive element 132 and can be integrated in the process of manufacturing the driving circuit layer 130. But can also be formed by processing in another process, and the present invention is not limited thereto.
In detail, in the present embodiment, the light blocking members 134 are respectively disposed around the plurality of photosensitive elements 132, and the light blocking members 134 include the first portion 210. The first portion 210 is made of, for example, a black material or a light absorbing material. In the embodiment, the first portion 210 may be made of the same material as the substrate 142 of the color filter layer 140, but the present invention is not limited thereto. Therefore, the structure of the light blocking member 134 disposed around the photosensitive element 132 in the present embodiment can block the non-sensing light transmitted in the liquid crystal layer 120 from being transmitted to the photosensitive element 132. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved.
In addition, the non-display area of the device can be further omitted, so as to reduce the thickness of the device and increase the overall display area, thereby achieving the purpose of realizing a full-screen display, and further having more available built-in space (for example, increasing the volume of the battery to be applied to a 5G smart phone). It should be noted that the method of reducing the strong ambient light to improve the sensing effect can be performed simultaneously in the process of manufacturing the driving circuit layer 130, so that the cost of additional equipment is not required to be increased.
Fig. 2 is a schematic cross-sectional view of a display device according to another embodiment of the present invention. Please refer to fig. 2. The display device 100A of the present embodiment is similar to the display device 100 shown in fig. 1. The difference between the two is that in the present embodiment, the plurality of light blocking members 134A of the display device 100A further include a second portion 220, and the first portion 210 is located between the substrate 142 of the color filter layer 140 and the second portion 220. Specifically, the second portion 220 is made of blue-green light filtering material (or called cyan light filtering material) for only passing blue light and green light. However, in other embodiments, the light-shielding layer may be made of a blue light-shielding material or a green light-shielding material, and the present invention is not limited thereto. Therefore, the present embodiment can filter the non-sensing light in the environment transmitted in the liquid crystal layer 120 by disposing the light blocking member 134A around the photosensitive element 132, so as to prevent the non-sensing light from being transmitted to the photosensitive element 132. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved. In other embodiments, the number of the second portions 220 may be plural, and the second portions may be made of different materials to filter out light with different wavelength ranges, but the present invention is not limited thereto.
Fig. 3 is a schematic cross-sectional view of a display device according to another embodiment of the present invention. Please refer to fig. 3. The display device 100B of the present embodiment is similar to the display device 100 shown in fig. 1. The difference between the two is that, in the present embodiment, the light blocking members 134B of the display device 100B respectively extend from the driving circuit layer 130 toward the top surface S1 of the liquid crystal layer 120 along the vertical direction, and the height T1 of the light blocking members 134B is greater than 5 times the height T2 of the photosensitive element 132. Therefore, the present embodiment can block the non-sensing light in the environment transmitted in the liquid crystal layer 120 by the vertically extending light blocking member 134B structure, so as to prevent the non-sensing light from being transmitted to the light sensing element 132. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved.
Fig. 4 is a schematic cross-sectional view of a display device according to another embodiment of the present invention. Please refer to fig. 4. The display device 100C of the present embodiment is similar to the display device 100 shown in fig. 1. The difference between the two is that in the present embodiment, the light blocking members 134C of the display device 100C are respectively disposed on the photosensitive surfaces S of the photosensitive elements 132, and the light blocking members 134C filter light in a wavelength range. Specifically, in the present embodiment, the light blocking member 134C completely covers the photosensitive surface S of the photosensitive element 132. The light blocking member 134C is, for example, a green light filtering component, a blue light filtering component, or a combination of the two. The blue-green light filtering component has better effect, but the novel creation is not limited to the above. Therefore, the light blocking member 134C disposed on the photosensitive surface S can filter the non-sensing light in the environment transmitted in the liquid crystal layer 120 to prevent the non-sensing light from being transmitted to the photosensitive element 132. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved. In some embodiments, the light blocking member 134C may include a plurality of sub light blocking members, and the sub light blocking members are respectively configured to filter light with different wavelength ranges, which is not limited by the present invention. The sub-light-blocking members can be stacked along the vertical direction, but the present invention is not limited thereto.
Fig. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present invention. Please refer to fig. 5. The display device 100D of the present embodiment is similar to the display device 100 shown in fig. 1. The difference between the two is that in the present embodiment, the light blocking members 134D of the display device 100D further include a second portion 220 disposed on the light sensing surfaces S of the light sensing elements 132, and the second portion 220 filters light in a wavelength range. Specifically, in the present embodiment, the second portion 220 completely covers the photosensitive surface S of the photosensitive element 132, and the first portion 210 and the second portion 220 are configured to completely cover the photosensitive element 132. In detail, the second portion 220 is, for example, a green light filtering component, a blue light filtering component, or a combination of the two, and the first portion 210 is, for example, made of a black material or a light absorbing material. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved. In some embodiments, the light blocking member 134A shown in fig. 2 or the light blocking member 134B shown in fig. 3 may be optionally disposed on the first portion 210, but the present invention is not limited thereto. In some embodiments, the second portion 220 may include a plurality of sub-light-blocking members, and the sub-light-blocking members are respectively configured to filter light with different wavelength ranges, and the plurality of sub-light-blocking members may be stacked along the vertical direction, which is not limited thereto.
In summary, in the display device of the present invention, the display device includes a light module, a liquid crystal frame, a (text) body and a color (text) light body frame, and a plurality of photosensitive elements of the text frame body (text) extend into the liquid crystal frame. Thus, may be used in an embedded finger bar inductive LCD device. The color light frame body includes a substrate, and the substrate includes a plurality of open/light frames. the edge body includes a plurality of light blocking members and these four open-ended positions are the positions of the photosensitive elements in the vertical direction. Therefore, the light-sensing element can receive the- "Fu -colored light beam. The light blockers are respectively disposed at peripheries 22285of the plurality of light sensing elements or at light sensing surfaces, so that the display device can block from non-light-sensitive regions of the skin-friendly regions in the liquid crystal frame to the light sensing elements by the vertically extending light blockers. In this manner, when the finger hardness sensing die is worn, the die can block from environmental light, reducing stem , and improving the sensing effect.
Although the present invention has been described with reference to the above embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.
Claims (11)
1. A display device, comprising:
the light source module is suitable for providing an illuminating light beam to the finger to generate a sensing light beam with fingerprint information;
the liquid crystal layer is configured on the transmission path of the illumination light beam and is provided with a top surface and a bottom surface;
a driving circuit layer disposed on the bottom surface of the liquid crystal layer, wherein the driving circuit layer includes a plurality of photosensitive elements and a plurality of light blocking members, the plurality of photosensitive elements are used for receiving the sensing light beams, and the plurality of light blocking members are respectively disposed around the plurality of photosensitive elements and/or on the photosensitive surface; and
the color filter layer is arranged on the top surface of the liquid crystal layer and comprises a substrate and a plurality of filter units, the substrate comprises a plurality of openings, and the positions of the openings are overlapped with the positions of the photosensitive assemblies in the vertical direction.
2. The display device of claim 1, wherein the plurality of photosensitive elements extend into the liquid crystal layer.
3. The display device according to claim 1, wherein the plurality of light blocking members are cylindrical structures.
4. The display device according to claim 1, wherein the plurality of light blocking members include first portions respectively disposed around the plurality of photosensitive elements, and the first portions block light of all wavelength ranges.
5. The display device according to claim 4, wherein the plurality of light blocking members further comprises at least one second portion disposed on the first portion, the at least one second portion filtering light of a wavelength range, and the first portion is disposed between the substrate and the at least one second portion.
6. The display device according to claim 4, wherein the plurality of light blocking members respectively extend from the driving circuit layer toward the top surface in a vertical direction, and a height of the plurality of light blocking members is greater than 5 times a height of the plurality of photosensitive elements.
7. The display device according to claim 1, wherein the light blocking members are respectively disposed on the photosensitive surfaces of the photosensitive elements, and filter light of a wavelength range.
8. The display device according to claim 7, wherein the plurality of light blocking members completely cover the plurality of photosensitive members.
9. The display device according to claim 7, wherein the plurality of light blocking members are green light filtering members, blue light filtering members, or a combination thereof.
10. The display device according to claim 7, wherein the light blocking members comprise a plurality of sub light blocking members, and the sub light blocking members are respectively configured to filter light in different wavelength ranges.
11. The display device according to claim 10, wherein the plurality of sub light blocking members are stacked in a vertical direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063060612P | 2020-08-03 | 2020-08-03 | |
| US63/060,612 | 2020-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214201988U true CN214201988U (en) | 2021-09-14 |
Family
ID=77038119
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120380804.4U Active CN214202002U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120386207.2U Active CN214201988U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120401503.5U Active CN215599692U (en) | 2020-08-03 | 2021-02-23 | Display device with fingerprint sensing function |
| CN202120421990.1U Active CN214201989U (en) | 2020-08-03 | 2021-02-25 | Embedded fingerprint sensing display device |
| CN202110661424.2A Active CN113364992B (en) | 2020-08-03 | 2021-06-15 | Image sensing device and exposure time adjusting method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120380804.4U Active CN214202002U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120401503.5U Active CN215599692U (en) | 2020-08-03 | 2021-02-23 | Display device with fingerprint sensing function |
| CN202120421990.1U Active CN214201989U (en) | 2020-08-03 | 2021-02-25 | Embedded fingerprint sensing display device |
| CN202110661424.2A Active CN113364992B (en) | 2020-08-03 | 2021-06-15 | Image sensing device and exposure time adjusting method thereof |
Country Status (3)
| Country | Link |
|---|---|
| KR (5) | KR20220000365U (en) |
| CN (5) | CN214202002U (en) |
| TW (4) | TWM611952U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI777742B (en) * | 2021-05-18 | 2022-09-11 | 友達光電股份有限公司 | Fingerprint recognition device |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6943840B1 (en) * | 1999-10-14 | 2005-09-13 | Canon Kabushiki Kaisha | Image sensing apparatus executing exposure control using object luminance information |
| JP4105957B2 (en) * | 2002-03-12 | 2008-06-25 | カシオ計算機株式会社 | Imaging apparatus and imaging method |
| US7548270B2 (en) * | 2005-09-08 | 2009-06-16 | Delphi Technologies, Inc. | Method of exposure control for an imaging system |
| JP2007312112A (en) * | 2006-05-18 | 2007-11-29 | Konica Minolta Holdings Inc | Imaging apparatus |
| CN101359148B (en) * | 2007-08-03 | 2011-04-06 | 深圳艾科创新微电子有限公司 | Method for automatic exposure regulation and control system |
| CN101399924B (en) * | 2007-09-25 | 2010-05-19 | 展讯通信（上海）有限公司 | Automatic exposure method and device based on brightness histogram |
| CN101262567B (en) * | 2008-04-07 | 2010-12-08 | 北京中星微电子有限公司 | Automatic exposure method and device |
| JP2014220762A (en) * | 2013-05-10 | 2014-11-20 | パナソニック株式会社 | Imaging apparatus |
| CN102801920A (en) * | 2012-07-25 | 2012-11-28 | 中国科学院长春光学精密机械与物理研究所 | Sensorless continuous automatic exposure time adjusting and controlling device of camera |
| CN105338235B (en) * | 2014-07-28 | 2018-11-20 | 华为技术有限公司 | A kind of automatic aperture adjusting method and device |
| CN104184957B (en) * | 2014-09-17 | 2017-04-26 | 中国科学院光电技术研究所 | Automatic exposure control method based on self-adaptive predictive image average brightness and suitable for space detection imaging |
| CN104184958B (en) * | 2014-09-17 | 2017-07-11 | 中国科学院光电技术研究所 | Automatic exposure control method and device based on FPGA (field programmable Gate array) and suitable for space detection imaging |
| CN105979162B (en) * | 2016-07-21 | 2019-03-29 | 凌云光技术集团有限责任公司 | A kind of the automatic exposure method of adjustment and device of expansible dynamic image |
| EP3516862A4 (en) * | 2016-10-26 | 2020-01-22 | Zhejiang Dahua Technology Co., Ltd | Systems and methods for exposure control |
| CN106657803B (en) * | 2016-12-26 | 2019-05-07 | 中国科学院长春光学精密机械与物理研究所 | Electro-optic theodolite high speed camera automatic explosion method |
| CN106982333B (en) * | 2017-05-12 | 2020-03-27 | 深圳怡化电脑股份有限公司 | Method, device and equipment for quickly correcting image sensor |
| CN109819172B (en) * | 2017-11-21 | 2021-03-19 | 展讯通信（上海）有限公司 | Automatic exposure method and system |
| CN108551555B (en) * | 2018-05-16 | 2019-12-31 | 中国科学院西安光学精密机械研究所 | Automatic exposure method of industrial camera using CMOS detector |
| CN111064902B (en) * | 2019-12-27 | 2021-05-18 | 重庆紫光华山智安科技有限公司 | Aperture control method and device and exposure control method |
-
2021
- 2021-02-19 CN CN202120380804.4U patent/CN214202002U/en active Active
- 2021-02-19 CN CN202120386207.2U patent/CN214201988U/en active Active
- 2021-02-19 TW TW110201851U patent/TWM611952U/en not_active IP Right Cessation
- 2021-02-19 TW TW110201835U patent/TWM613990U/en not_active IP Right Cessation
- 2021-02-23 CN CN202120401503.5U patent/CN215599692U/en active Active
- 2021-02-23 TW TW110201941U patent/TWM613999U/en not_active IP Right Cessation
- 2021-02-25 CN CN202120421990.1U patent/CN214201989U/en active Active
- 2021-02-25 TW TW110202036U patent/TWM612856U/en not_active IP Right Cessation
- 2021-03-24 KR KR2020210000916U patent/KR20220000365U/en not_active Application Discontinuation
- 2021-04-05 KR KR2020210001069U patent/KR20220000366U/en not_active Application Discontinuation
- 2021-04-05 KR KR2020210001070U patent/KR20220000367U/en not_active Application Discontinuation
- 2021-04-08 KR KR2020210001110U patent/KR20220000369U/en not_active Application Discontinuation
- 2021-06-15 CN CN202110661424.2A patent/CN113364992B/en active Active
- 2021-07-23 KR KR1020210097371A patent/KR20220016783A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN113364992A (en) | 2021-09-07 |
| TWM612856U (en) | 2021-06-01 |
| KR20220000369U (en) | 2022-02-10 |
| KR20220000366U (en) | 2022-02-10 |
| TWM613990U (en) | 2021-07-01 |
| KR20220000365U (en) | 2022-02-10 |
| CN214201989U (en) | 2021-09-14 |
| KR20220016783A (en) | 2022-02-10 |
| CN214202002U (en) | 2021-09-14 |
| KR20220000367U (en) | 2022-02-10 |
| TWM611952U (en) | 2021-05-11 |
| TWM613999U (en) | 2021-07-01 |
| CN215599692U (en) | 2022-01-21 |
| CN113364992B (en) | 2023-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109307962B (en) | Liquid crystal display panel, liquid crystal display screen and electronic equipment | |
| TWI719738B (en) | Display panel and display device using same | |
| KR100825167B1 (en) | Electro-optical device, method of manufacturing the same, and electronic apparatus | |
| TWI715309B (en) | Liquid crystal display device | |
| EP1918763A2 (en) | Display device | |
| KR980010554A (en) | Liquid crystal display | |
| CN211180467U (en) | Liquid crystal display device having a plurality of pixel electrodes | |
| KR20120076071A (en) | Liquid crystal display apparatus | |
| CN101930094B (en) | Liquid crystal display device | |
| KR20190123376A (en) | Display device | |
| US20230181067A1 (en) | In-cell optical biometrics sensor | |
| CN214201988U (en) | Display device with fingerprint sensing function | |
| CN114740994B (en) | Display screen and display device | |
| CN109976024B (en) | Color filter substrate, manufacturing method thereof and display panel | |
| CN112666737B (en) | Liquid crystal display panel | |
| KR101929378B1 (en) | Liquid crystal display device | |
| US11867990B2 (en) | Electronic device | |
| CN214375687U (en) | Display device with fingerprint sensing function | |
| WO2010106709A1 (en) | Active matrix substrate and display device | |
| KR101749750B1 (en) | Backlight Unit And Liquid Crystal Diplay | |
| KR101816314B1 (en) | Backlgiht unit and liquid crystal display device the same | |
| JP2007333943A (en) | Electrooptical device, electronic device and manufacturing method of electrooptical device | |
| CN210742637U (en) | Display device | |
| KR101782642B1 (en) | Liquid Crystal Display | |
| CN114355656A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |