Display screen and brightness control method thereof

Abstract

The present invention discloses a display screen and a brightness control method thereof, comprising a display part for displaying the operating status of an air conditioner, a brightness detection mechanism for detecting the brightness of the environment in which the air conditioner is located, and a control mechanism with storage and control functions; a brightness detection mechanism is turned on or off by an external remote controller; by presetting a reference value of the brightness of the display screen under various environmental conditions in the display screen, the brightness detection mechanism performs cyclic detection of the brightness of the environment in which it is located, and according to the brightness information and the reference value sent by the brightness detection mechanism, the control mechanism controls the output brightness of the display screen in real time; by comparing the information sent by the brightness detection mechanism with a preset threshold value of the display screen and by counting the abnormal time of the brightness information, it is determined whether the brightness detection mechanism has a fault; if a fault occurs, the display screen reminds the user by being always on and outputting a fault message to avoid affecting the user's normal use.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic device display control, and in particular to a display screen and a brightness control method thereof. Background Art

[0002] Air conditioners are commonly used in various situations. Excessively high or low brightness on the display screen, which displays the air conditioner's operating status, can affect users. Some air conditioners already have a display brightness adjustment function. Air conditioner manufacturers preset different display brightness settings based on ambient brightness levels. During actual operation, the display screen uses a light detection mechanism to detect the actual ambient brightness and output the corresponding preset brightness. Presetting display brightness data for different ambient brightness levels can address varying display brightness output requirements, but in actual use, there are the following issues: 1. Different users have different light sensitivities. Outputting a constant display brightness under the same ambient brightness conditions may not meet the brightness requirements of all users, preventing users from flexibly adjusting the display brightness to their needs, causing inconvenience. 2. The light detection mechanism that detects ambient temperature may malfunction. When this occurs, the detected light brightness data may be higher or lower than the normal value, resulting in the actual display brightness being too high or too low, affecting actual use of the air conditioner. 3. Other control parameters cannot be adjusted in conjunction with the actual brightness of the air conditioner's operating environment. Summary of the Invention

[0003] In order to solve the above problems, the object of the present invention is to provide a display screen and a brightness control method thereof that can adjust the brightness manually and in real time and ensure stable output brightness.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a display screen brightness control method is applied to a display screen, the display screen includes a display part, a brightness detection mechanism and a control mechanism, and the display screen brightness control method is as follows:

[0005] Step 1: The system starts and determines whether the brightness detection mechanism of the display screen is turned on; if not, the display portion of the display screen continuously outputs at a preset fixed brightness;

[0006] Step 2): Determine whether the control mechanism stores abnormal information of the brightness detection mechanism; if so, the display screen continues to output at a fixed brightness;

[0007] Step 3): When there is no abnormal brightness information stored in the control mechanism, it is determined whether the ambient brightness L of the display screen environment collected by the brightness detection mechanism is within a preset range [a, b] of the display screen;

[0008] Step 4): When the ambient brightness L is within the preset range [a, b], the abnormal information of the brightness detection mechanism stored in the recording control mechanism is cleared, and the display part outputs at the brightness preset in the display screen or manually preset by the user;

[0009] Step 5): Determine whether the user has manually adjusted the current output brightness; if so, the display screen outputs the manually adjusted brightness, stores the adjusted brightness information in the control mechanism, and then repeats step 4; otherwise, directly repeat step 4;

[0010] Step 7): When the ambient brightness L is outside the preset range [a, b], it is preliminarily determined that the light detection data of the light detection mechanism is abnormal, and the duration t of the abnormal light detection data is calculated to determine whether the duration t of the abnormal light detection data is less than a system preset threshold c;

[0011] Step 8): When the duration t of the abnormal light detection data is less than the system preset threshold c, repeat step 3; when the duration t of the abnormal light detection data is greater than the system preset threshold c, the display screen is always on, and then it is determined again whether the ambient brightness L is within the system preset range [a, b];

[0012] Step 9): If the ambient brightness L is within the system preset range [a, b], repeat step 4; otherwise, continue to count the duration t of the abnormal light detection data, and determine whether the duration t of the abnormal light detection data is greater than the system preset threshold e;

[0013] Step 10): If the duration t of the abnormal light detection data is greater than the system preset threshold e, the light detection mechanism is determined to be abnormal, the control mechanism saves the abnormal light detection information, and the display part displays the abnormal light detection information; otherwise, repeat step 4.

[0014] Preferably, in step 1, the display screen controls the opening or closing of the brightness detection mechanism by receiving an external signal.

[0015] Preferably, in step 2, the abnormal information of the brightness detection mechanism is generated by a malfunction of the brightness detection mechanism during the previous operation of the display screen.

[0016] Preferably, abnormal information of the brightness detection mechanism in the control mechanism can only be eliminated by manual reset or maintenance.

[0017] Preferably, the display screen has preset reference values ​​for the display screen brightness under various environmental conditions.

[0018] Preferably, after a failure of the brightness detection mechanism occurs, the display screen displays at a constant brightness.

[0019] A display screen, applying the above-mentioned display screen brightness control method, includes a display portion for displaying the operating status of an air conditioner, a brightness detection mechanism for detecting the brightness of the environment in which the air conditioner is located, and a control mechanism with storage and control functions; the brightness detection mechanism detects the brightness of the current environment in real time, and the control mechanism receives the ambient brightness information transmitted by the brightness detection mechanism and adjusts the output brightness of the display portion in real time according to the ambient brightness information.

[0020] The technical solution of the present invention allows the user to choose whether the display automatically adjusts the brightness or manually adjusts the brightness by controlling the brightness detection device to be turned on or off. By judging whether there is abnormal information of the brightness detection mechanism in the control mechanism, when the brightness detection mechanism fails, the brightness detection mechanism is prevented from continuing to operate, thereby reducing secondary damage to the display screen; when the brightness detection mechanism fails, the display is always on, ensuring the stability of the display output. By cyclically using the above-mentioned brightness control method, the purpose of adjusting the display in real time according to the environment is achieved. The display has preset reference values ​​for the display brightness of the display under various environmental conditions, and combined with the brightness data adjusted or set by the user stored in the display, it provides a reference for the automatic adjustment of the display screen. In the case of automatic adjustment of the display screen, the output brightness of the display is automatically adjusted by reading the brightness information previously set by the user, thereby improving the adaptability of the display and bringing a more comfortable user experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the display screen;

[0022] Figure 2 Schematic diagram of the display brightness control logic.

[0023] Reference numerals: 1. display screen; 11. display portion; 12. brightness detection mechanism; 13. control mechanism. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0027] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] Example 1.

[0030] like Figure 1 The display screen shown includes a display portion 11, a brightness detection mechanism 12 for detecting ambient brightness information of the air conditioner, and a control mechanism 13 for storing and controlling the display brightness of display portion 11. It should be noted that control mechanism 13 presets reference values ​​for the display brightness of display 1 under various environmental conditions.

[0031] In this embodiment, the display unit 11 can display the operating status of the air conditioner. The brightness detection mechanism 12 can detect the brightness information of the environment in which the air conditioner is located and transmit the ambient brightness information to the control mechanism 13. The control mechanism 13 has the function of storing and controlling the display brightness of the display unit 11.

[0032] Further preferably, the brightness detection device includes optical and electrical devices such as photoelectric tubes and amplifiers.

[0033] Example 2.

[0034] This embodiment provides a method for controlling the brightness of a display screen described in Embodiment 1. The specific steps are as follows:

[0035] Step 1: The system starts and determines whether the brightness detection mechanism 12 of the display screen 1 is enabled. If not, the display portion 11 of the display screen 1 continuously outputs a predetermined fixed brightness. It should be noted that the display screen 1 controls the on / off state of the brightness detection mechanism 12 by receiving an external signal; for example, by controlling the on / off state of the viewing function of the display screen 1 via a remote control.

[0036] Step 2: Determine whether the control mechanism 13 stores abnormality information regarding the brightness detection mechanism 12. If so, the display screen 1 maintains a constant brightness. It should be noted that the abnormality information regarding the brightness detection mechanism 12 is due to a malfunction during the previous operation of the display screen 1. This configuration prevents repeated testing from causing secondary damage to the components of the brightness detection mechanism 12, even in the event of a problem, while also streamlining the brightness adjustment process.

[0037] Step 3: When no abnormal brightness information is stored in the control mechanism 13 , it is determined whether the ambient brightness L of the display screen 1 collected by the brightness detection mechanism 12 is within the preset range [a, b] of the display screen 1 .

[0038] Step 4: When the ambient brightness L is within the preset range [a, b], the abnormal information of the brightness detection mechanism stored in the recording control mechanism 13 is cleared, and the display part 11 outputs at the brightness preset in the display screen 1 or manually preset by the user;

[0039] Step 5: Determine whether the user has manually adjusted the current output brightness. If so, the display screen 1 uses the output adjusted manually by the user and stores the adjusted brightness information in the control mechanism 13, then repeating step 4. Otherwise, the display screen 1 directly repeats step 4. It should be noted that if the control mechanism 13 already stores the corresponding information at the current ambient brightness L, the existing data will be updated. If the control mechanism 13 does not store the corresponding data, the corresponding brightness information will be recorded in the control mechanism 13.

[0040] Step 7: When the ambient brightness L is outside the preset range [a, b], it is preliminarily determined that the light detection data of the light detection mechanism 12 is abnormal, and the duration t of the abnormal light detection data is calculated to determine whether the duration t of the abnormal light detection data is less than the system preset threshold c;

[0041] Step 8: If the duration t of the abnormal light detection data is less than the system-preset threshold c, repeat step 3. If the duration t of the abnormal light detection data is greater than the system-preset threshold c, display screen 1 remains permanently illuminated, and a determination is again made as to whether ambient brightness L is within the system-preset range [a, b]. It should be noted that if the duration t of the abnormal light detection data is greater than the system-preset threshold c, it can be preliminarily determined that brightness detection mechanism 12 has failed, and therefore display screen 1 remains permanently illuminated.

[0042] Step 9: If the ambient brightness L is within the system preset range [a, b], repeat step 4; otherwise, continue to count the duration t of the abnormal light detection data, and determine whether the duration t of the abnormal light detection data is greater than the system preset threshold e;

[0043] Step 10: If the duration t of the abnormal light detection data is greater than the system preset threshold e, the control mechanism 13 saves the abnormal light detection information, and the display part 11 displays the abnormal light detection information of the brightness detection mechanism 12; otherwise, repeat step 4. It should be noted that when the duration t of the abnormal light detection data is greater than the system preset threshold e, it is determined that the brightness detection mechanism 12 has a fault; when the duration t of the abnormal light detection data is less than the system preset threshold e, it is determined that the brightness detection mechanism 12 has no fault. With such a setting, when the brightness detection mechanism 12 is normal, the above-mentioned display screen 1 brightness method is circulated to achieve real-time adjustment of the display brightness, thereby improving the comfort of the display screen 1 during use. In the event of a fault in the brightness detection mechanism 12, the display screen 1 is always on to ensure stable output of the display screen 1.

[0044] In this embodiment, when abnormal brightness information appears on the display screen 1 , it can only be restored by manually resetting or repairing the display screen 1 .

[0045] In this embodiment, when abnormal brightness information appears, it is determined that the brightness detection mechanism 12 has failed, and the display screen 1 is displayed at a certain constant brightness to avoid the display screen 1 being unable to work due to a failure of the brightness detection mechanism 12.

[0046] In this embodiment, the user can manually change the brightness of the display screen 1 , and the display screen 1 records and stores the brightness information set by the user in the control mechanism 13 .

[0047] In this embodiment, the control mechanism 13 of the display screen 1 is preset with brightness data of the display screen 1 corresponding to different ambient brightness levels.

[0048] Example 3.

[0049] This embodiment provides a control logic for a display screen, such as Figure 2 The control logic shown has the following specific steps:

[0050] Step S0: start the program;

[0051] Step S1: Determine whether the brightness detection mechanism 12 of the display screen 1 is turned on. If the brightness detection mechanism is turned on, proceed to step S2; otherwise, proceed to step S28;

[0052] Step S2: Determine whether the brightness detection mechanism 12 is abnormal by checking whether there is abnormal information of the brightness detection mechanism 12 in the control mechanism 13. If there is no abnormal data of the brightness detection mechanism 12, it is determined that the brightness detection mechanism 12 is normal and the process proceeds to step S4. Otherwise, the process proceeds to step S3.

[0053] Step S3: setting the brightness detection mechanism 12 of the display screen 1 to be invalid, and then proceeding to step S28;

[0054] Step S4: Detect the ambient brightness L, and then proceed to step S5;

[0055] Step S5: Determine whether the ambient brightness L is less than a preset threshold a or greater than a preset threshold b. If L b, it is determined that the light detection data is abnormal and the process proceeds to step S20. Otherwise, it is determined that the light detection data is normal and the process proceeds to step S6.

[0056] Step S6: Clear the abnormal time t of the brightness detection mechanism 12, and then proceed to step S7;

[0057] Step S7: Determine whether the ambient brightness L is less than a preset threshold d. If L < d, proceed to step S8; otherwise, proceed to step S9.

[0058] Step S8: Entering the low-brightness control mode, the entire machine operates in the preset low-brightness mode;

[0059] Step S9: determining whether the user has modified the brightness of the display screen 1 under the current ambient brightness L. If the user has preset the brightness modification parameter under the current ambient brightness, proceed to step S10; otherwise, proceed to step S12.

[0060] Step S10: Read the system preset brightness X of the display screen 1 under the ambient brightness L, read the brightness correction parameter XL of the display screen 1 under the current ambient brightness set by the user, and then proceed to step S11;

[0061] Step S11: The brightness of display screen 1 is output as X+XL, and then the process goes to step S14;

[0062] Step S12: Read the brightness X of the display screen 1 preset by the system under the ambient brightness L, and then proceed to step S13;

[0063] Step S13: The brightness of display screen 1 is output as X, and then the process goes to step S14;

[0064] Step S14: determining whether the user has adjusted the brightness of the display screen 1. If the user has adjusted the brightness of the display screen 1, proceed to step S15; otherwise, proceed to step S4.

[0065] Step S15: Detect the ambient brightness L, and then proceed to step S16;

[0066] Step S16: Read the brightness parameter XLS of the display screen 1 after the user adjustment, and then proceed to step S17;

[0067] Step S17: determining whether the display screen 1 brightness correction parameter XL exists under the current brightness L. If so, proceed to step S18; otherwise, proceed to step S19.

[0068] Step S18: Calculate the brightness correction parameter XL of display screen 1, XL-XLS-X, update the brightness correction parameter XL of display screen 1, display screen 1 outputs at the current brightness, and then go to step S4;

[0069] Step S19: Calculate the brightness correction parameter XL of display screen 1, XL-XLS-X, record the brightness correction parameter XL of display screen 1, display screen 1 outputs at the current brightness, and then go to step S4;

[0070] Step S20: Count the duration t of the abnormal light detection data, and then proceed to step S21;

[0071] Step S21: Determine whether the duration t of the abnormal light detection data is greater than a system preset threshold c. If t>c, proceed to step S22; otherwise, proceed to step S4.

[0072] Step S22: Display screen 1 is always on, and then the process goes to step S23;

[0073] Step S23: Determine whether the ambient brightness L is less than a preset threshold a or greater than a preset threshold b. If L b, proceed to step S24; otherwise, proceed to step S6.

[0074] Step S24: continue to count the duration t of the abnormal light detection data, and then proceed to step S25;

[0075] Step S25: Determine whether the duration t of the abnormal light detection data is greater than a preset threshold e. If t>e, proceed to step S26; otherwise, proceed to step S4.

[0076] Step S26: Save abnormal information of the brightness detection mechanism 12, and then proceed to step S27;

[0077] Step S27: Output abnormal information of the brightness detection mechanism 12, and then enter step S28;

[0078] Step S28: End the program.

[0079] In this embodiment, the preset threshold value d in step S7 of the control logic is within the system preset range [a, b]. The preset threshold value c in step S21 of the control logic is less than the preset threshold value e in step S25.

[0080] In this embodiment, the control logic for display screen 1 repeatedly and cyclically controls the brightness output of display screen 1, thereby automatically adjusting the brightness of display screen 1 in real time based on the external environment. By determining whether brightness detection mechanism 12 is in a low or high brightness state for a long period of time, it is determined whether brightness detection mechanism 12 has a fault, and the fault information is output through display screen 1. This arrangement enables self-checking of brightness detection mechanism 12, allowing users to promptly identify and resolve any problems.

[0081] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0082] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A method for controlling display brightness, characterized in that: Applied to a display screen, the display screen (1) comprises a display portion (11), a brightness detection mechanism (12) for detecting the brightness of the surrounding environment, and a control mechanism (13) having storage and control functions. The brightness control method of the display screen (1) comprises the following steps: Step 1): The system starts and determines whether the brightness detection mechanism (12) of the display screen (1) is turned on; if not, the display portion (11) of the display screen (1) continuously outputs at a preset fixed brightness; Step 2): Determine whether the control mechanism (13) stores abnormal information of the brightness detection mechanism (12); if so, the display screen (1) continues to output at a fixed brightness; Step 3): When there is no brightness abnormality information stored in the control mechanism (13), it is determined whether the ambient brightness L of the environment where the display screen (1) is located, which is collected by the brightness detection mechanism (12), is within the preset range [a, b] of the display screen (1); Step 4): When the ambient brightness L is within the preset range [a, b], the abnormal information of the brightness detection mechanism stored in the recording control mechanism (13) is cleared, and the display part (11) outputs at the brightness preset in the display screen (1) or manually preset by the user; Step 5): Determine whether the ambient brightness L is less than a preset threshold value d. If L < d, enter the low brightness control mode, and the display screen (1) outputs brightness in the preset low brightness mode; otherwise, determine whether the user has manually adjusted the current output brightness; Step 6): If the user manually adjusts the current output brightness, the display screen (1) outputs the output after the user manually adjusts it, and stores the relevant information of the adjusted brightness in the control mechanism (13), and then repeats step 4); otherwise, directly repeat step 4); Step 7): When the ambient brightness L is outside the preset range [a, b], it is preliminarily determined that the light detection data of the brightness detection mechanism (12) is abnormal, and the duration t of the abnormal light detection data is counted, and it is determined whether the duration t of the abnormal light detection data is less than the system preset threshold c; Step 8): When the duration t of the abnormal light detection data is less than the system preset threshold c, repeat step 3; when the duration t of the abnormal light detection data is greater than the system preset threshold c, the display (1) is always on, and then it is determined again whether the ambient brightness L is within the system preset range [a, b]; Step 9): If the ambient brightness L is within the system preset range [a, b], repeat step 4); Otherwise, continue to count the duration t of the abnormal light detection data, and determine whether the duration t of the abnormal light detection data is greater than the system preset threshold e; Step 10): If the duration t of the abnormal light detection data is greater than the system preset threshold value e, the brightness detection mechanism (12) is determined to be abnormal, the control mechanism (13) saves the abnormal light detection information, and the display part (11) displays the abnormal light detection information of the brightness detection mechanism (12); otherwise, repeat step 4); The preset threshold d in step 5) is within the preset range [a, b] in step 3), and the preset threshold c in step 7) is smaller than the preset threshold e in step 9).

2. A display screen brightness control method according to claim 1, characterized in that: In step 1), the display screen (1) controls the opening or closing of the brightness detection mechanism (12) by receiving an external signal.

3. The display screen brightness control method according to claim 1, wherein: In step 2), the abnormal information of the brightness detection mechanism (12) is generated by a failure of the brightness detection mechanism (12) when the display screen (1) was previously operating.

4. A display screen brightness control method according to claim 3, characterized in that: Abnormal information of the brightness detection mechanism (12) in the control mechanism (13) can only be eliminated by manual reset or maintenance.

5. The method for controlling display screen brightness according to claim 1, wherein: The display screen (1) has preset reference values ​​for the brightness of the display screen (1) under various environmental conditions.

6. The method for controlling display screen brightness according to claim 1, wherein: After the brightness detection mechanism (12) fails, the display screen (1) displays at a constant brightness.

7. A display comprising a display portion (11) for displaying the operating status of an air conditioner, characterized in that: A display screen brightness control method according to any one of claims 1 to 6, further comprising a brightness detection mechanism (12) for detecting the brightness of the environment in which the air conditioner is located and a control mechanism (13) having storage and control functions; the brightness detection mechanism (12) detects the brightness of the current environment in real time, the control mechanism (13) receives the ambient brightness information transmitted by the brightness detection mechanism (12), and adjusts the output brightness of the display part (11) in real time according to the ambient brightness information.

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