CN111292703A - Screen brightness adjusting method and device - Google Patents
Screen brightness adjusting method and device Download PDFInfo
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- CN111292703A CN111292703A CN201911324423.8A CN201911324423A CN111292703A CN 111292703 A CN111292703 A CN 111292703A CN 201911324423 A CN201911324423 A CN 201911324423A CN 111292703 A CN111292703 A CN 111292703A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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Abstract
The invention provides a screen brightness adjusting method and device, wherein the method comprises the following steps: the method comprises the steps that a baseband chip obtains original image information collected by a camera to obtain image target brightness information; the baseband chip sends an instruction to the optical waveguide control chip, wherein the instruction carries image target brightness data; and the optical waveguide control chip receives the instruction and adjusts the optical waveguide display screen according to the image target brightness data. The brightness of the optical waveguide screen is adjusted by extracting the brightness signal of the image shot by the camera, the ambient brightness of the scene shot by the camera can be truly reflected, the real-time performance of the optical waveguide brightness adjustment is high, the reliability is good, and therefore the user can watch the optical waveguide screen more comfortably.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of brightness adjustment, in particular to a screen brightness adjusting method and device.
[ background of the invention ]
At present, the screen brightness adjusting scheme of the intelligent helmet is generally based on that a photosensitive sensor acquires environment brightness, an environment brightness analog signal is acquired into a digital signal and then fed back to a processor, the processor sends an instruction to adjust the screen brightness, and the method is low in instantaneity. Due to the reasons such as the installation position of the photosensitive sensor and the accuracy of elements, the consistency of the ambient brightness acquired by the photosensitive sensor and the shooting environment where the intelligent helmet camera is located is poor, so that the screen picture seen by human eyes from the optical waveguide is either dark or bright, the screen brightness adjustment delay of the optical waveguide is large, and the experience effect of people is greatly influenced.
[ summary of the invention ]
The invention aims to solve the technical problem of providing a screen brightness adjusting method and a screen brightness adjusting device, which can adjust the brightness of an optical waveguide screen by extracting a brightness signal of an image shot by a camera, can truly reflect the ambient brightness of a scene shot by the camera, have high real-time performance and good reliability in optical waveguide brightness adjustment, and ensure that human eyes can watch the optical waveguide screen more comfortably.
To solve the foregoing technical problem, in one aspect, an embodiment of the present invention provides a method for adjusting screen brightness, including:
the optical waveguide control chip receives an instruction sent by the baseband chip, wherein the instruction carries image target brightness information;
and the optical waveguide control chip adjusts the brightness of the optical waveguide display screen according to the image target brightness information.
Preferably, before the optical waveguide control chip receives the instruction sent by the baseband chip, the method further includes:
the baseband chip acquires original image information acquired by the camera and obtains image target brightness information according to the original image information.
Preferably, the adjusting the brightness of the optical waveguide display screen by the optical waveguide control chip according to the image target brightness information includes:
the optical waveguide control chip sets the brightness of the optical waveguide display screen as the image target brightness.
Preferably, the optical waveguide control chip receives the instruction sent by the baseband chip through the I2C interface.
Preferably, the obtaining, by the baseband chip, original image information acquired by the camera, and the image target brightness information according to the original image information includes: and acquiring brightness information of the original image by using a photosensitive sensor.
Preferably, the image target brightness data is an average brightness of the original image.
Preferably, the image target brightness data is the brightness of the middle part of the original image.
Preferably, the image target brightness data is brightness of a surrounding area of the original image.
Preferably, the baseband chip sends instructions to the optical waveguide control chip through an I2C interface.
Preferably, the baseband chip acquires original image information acquired by the camera through a built-in ISP.
Preferably, the middle portion of the original image refers to the original image length and width as L and W, respectively, and then the ratio is αL、βWIs composed of a length of L × αLAnd a width of Wx βWConstructed image in which 0 < αL﹤1、0﹤βW﹤1。
Preferably, the surrounding area of the original image refers to the original image length and width as L and W, respectively, and then the original image length and width are respectively scaled αL、βWIs composed of a length of L × αLAnd a width of Wx βWAn image other than the composed image, wherein 0 < αL﹤1、0﹤βW﹤1。
In another aspect, an embodiment of the present invention provides a screen brightness adjusting apparatus, which includes a baseband chip, an optical waveguide control chip, and an optical waveguide display screen electrically connected to each other, and the apparatus performs the above method.
Compared with the prior art, the technical scheme has the following advantages: the brightness of the optical waveguide screen can be adjusted by extracting the brightness signal of the image shot by the camera, the ambient brightness of the scene shot by the camera can be truly reflected, the real-time performance of the optical waveguide brightness adjustment is high, the reliability is good, and therefore the user can watch the optical waveguide screen more comfortably.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a preferred embodiment of the screen brightness adjusting method of the present invention.
Fig. 2 is a schematic diagram of the middle part of an original image in the screen brightness adjusting method of the present invention.
Fig. 3 is a schematic diagram of a peripheral portion of an original image in the screen brightness adjusting method of the present invention.
Fig. 4 is a preferred embodiment of the screen brightness adjusting apparatus of the present invention.
[ detailed description ] embodiments
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.
Example one
Fig. 1 is a preferred embodiment of the screen brightness adjusting method of the present invention. As shown in fig. 1, a method for adjusting screen brightness at least includes the following steps:
s11, the optical waveguide control chip receives an instruction sent by the baseband chip, wherein the instruction carries image target brightness information;
and S12, the optical waveguide control chip adjusts the brightness of the optical waveguide display screen according to the image target brightness information, and the optical waveguide control chip sets the brightness of the optical waveguide display screen as the image target brightness.
In specific implementation, before step S11, step S10 may be further included: the baseband chip acquires original image information acquired by the camera and obtains image target brightness information according to the original image information. And acquiring brightness information of the original image by using a photosensitive sensor. The image target brightness data may be an average brightness of the original image, a brightness of a middle portion of the original image, or a brightness of a surrounding area of the original image, according to the brightness information of the original image. The baseband chip sends instructions to the optical waveguide control chip through the I2C interface. The baseband chip acquires original image information acquired by the camera through a built-in ISP.
FIG. 2 is a schematic diagram of the middle portion of the original image in the screen brightness adjustment method of the present invention, and as shown in FIG. 2, the middle portion of the original image refers to the ratio α assuming that the length and width of the original image are L and W, respectivelyL、βWIs composed of a length of L × αLAnd a width of Wx βWConstructed image in which 0 < αL﹤1、0﹤βWIn the specific implementation, α can be selected according to requirementL、βWThe value of (c).
FIG. 3 is a schematic diagram of the surrounding area of the original image in the screen brightness adjustment method of the present invention, as shown in FIG. 3, the surrounding area of the original image refers to the ratio α assuming that the length and width of the original image are L and W, respectivelyL、βWIs composed of a length of L × αLAnd a width of Wx βWAn image other than the composed image, wherein 0 < αL﹤1、0﹤βWIn the specific implementation, α can be selected according to requirementL、βWThe value of (c).
Therefore, the screen brightness adjusting method can be generally applicable to the field of intelligent helmets, when the intelligent helmet camera works, the situation that the ambient brightness is directly obtained by a photosensitive sensor is avoided, the brightness information of a video is obtained through a video picture collected by the camera of the intelligent helmet, and the brightness of the optical waveguide screen is adjusted through the brightness information. Compared with the method that the ambient brightness is directly obtained by adopting the photosensitive sensor, the method can reflect the brightness of the shooting scene more truly, the real-time performance and the reliability of the brightness adjustment of the screen are better, and the human eyes can watch the optical waveguide screen more comfortably.
Example two
Fig. 2 is a preferred embodiment of the screen brightness adjusting apparatus of the present invention. As shown in fig. 2, a screen brightness adjusting device includes a camera, a baseband chip, an optical waveguide control chip, an optical waveguide display screen, and a photosensitive sensor, which are electrically connected, and the device performs the above method.
In particular implementations, the baseband chip includes, but is not limited to, MT 6763. The optical waveguide control chip includes, but is not limited to, HX 7816.
As can be seen from the above description, with the screen brightness adjusting method and device according to the present invention, the brightness of the optical waveguide screen is adjusted by extracting the brightness signal of the image captured by the camera, so that the ambient brightness of the scene captured by the camera can be truly reflected, and not only is the optical waveguide brightness adjustment real-time high, but also the reliability is good, so that the human eyes can watch the optical waveguide screen more comfortably.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A screen brightness adjusting method is characterized by comprising the following steps:
the optical waveguide control chip receives an instruction sent by the baseband chip, wherein the instruction carries image target brightness information;
and the optical waveguide control chip adjusts the brightness of the optical waveguide display screen according to the image target brightness information.
2. The screen brightness adjusting method according to claim 1, further comprising, before the optical waveguide control chip receives the instruction sent by the baseband chip:
the baseband chip acquires original image information acquired by the camera and obtains image target brightness information according to the original image information.
3. The screen brightness adjusting method of claim 1, wherein the adjusting the brightness of the optical waveguide display screen by the optical waveguide control chip according to the image target brightness information comprises:
the optical waveguide control chip sets the brightness of the optical waveguide display screen as the image target brightness.
4. The screen brightness adjusting method of claim 1, wherein the optical waveguide control chip receives an instruction sent by the baseband chip through an I2C interface.
5. The method for adjusting the brightness of the screen according to claim 1, wherein the obtaining, by the baseband chip, original image information collected by a camera, and the obtaining of the brightness information of the image target according to the original image information comprises: and acquiring brightness information of the original image by using a photosensitive sensor.
6. The screen brightness adjusting method according to claim 2, wherein the baseband chip obtains original image information collected by a camera through a built-in ISP.
7. The screen brightness adjustment method according to claim 5, wherein the image target brightness data is an average brightness of an original image.
8. The screen brightness adjustment method according to claim 5, wherein the image target brightness data is an original image middle part brightness.
9. The screen brightness adjustment method according to claim 5, wherein the image target brightness data is brightness of a surrounding area of the original image.
10. The screen brightness adjustment method of claim 8, wherein the original image middle portion is obtained by respectively scaling α assuming that the original image length and width are L and W, respectivelyL、βWIs composed of a length of L × αLAnd a width of Wx βWConstructed image in which 0 < αL﹤1、0﹤βW﹤1。
11. The screen brightness adjustment method of claim 9, wherein the original image surrounding area is obtained by respectively scaling α assuming that the original image length and width are L and W, respectivelyL、βWIs composed of a length of L × αLAnd a width of Wx βWAn image other than the composed image, wherein 0 < αL﹤1、0﹤βW﹤1。
12. A screen brightness adjusting apparatus comprising a base band chip, an optical waveguide control chip, an optical waveguide display screen electrically connected, the apparatus performing the method of any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324423.8A CN111292703A (en) | 2019-12-20 | 2019-12-20 | Screen brightness adjusting method and device |
| PCT/CN2020/097014 WO2021120564A1 (en) | 2019-12-19 | 2020-06-19 | Screen brightness adjustment method and helmet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911324423.8A CN111292703A (en) | 2019-12-20 | 2019-12-20 | Screen brightness adjusting method and device |
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| CN111292703A true CN111292703A (en) | 2020-06-16 |
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| CN201911324423.8A Pending CN111292703A (en) | 2019-12-19 | 2019-12-20 | Screen brightness adjusting method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021120564A1 (en) * | 2019-12-19 | 2021-06-24 | 深圳光启空间技术有限公司 | Screen brightness adjustment method and helmet |
| CN113810677A (en) * | 2021-09-09 | 2021-12-17 | Oppo广东移动通信有限公司 | Screen brightness adjusting method, terminal and readable storage medium |
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Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province, 518000 Applicant after: SHENZHEN KUANG-CHI SPACE TECH. Co.,Ltd. Applicant after: Shanghai Security Service (Group) Co.,Ltd. Address before: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province, 518000 Applicant before: SHENZHEN KUANG-CHI SPACE TECH. Co.,Ltd. Applicant before: SHANGHAI SECURITY SERVICE Corp. |
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Application publication date: 20200616 |
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