Patent Application
20250201202
This non-provisional application claims priority under 35 U.S.C. § 119 (a) to patent application No. 112148880 in Taiwan, R.O.C. on Dec. 14, 2023, the entire contents of which are hereby incorporated by reference.
The instant disclosure relates to an electronic device and method for adjusting and establishing brightness, in particular, to a computer for adjusting scene brightness, a method for adjusting scene brightness, and a processing method for establishing scene brightness.
Along with the rapid developments of liquid crystal display (LCD), the types of the LCDs become diversified. For eSports players, in addition to the response speed, the display device also has requirements for display brightness and display contrast.
Especially, for dark scenes of games, the performance of different LCDs in the dark place will be different. High-end display devices may have features such as high contrast ratio or high dynamic range (HDR). Therefore, when the high-end display devices are displaying dark scenes, the devices can still provide the viewer (such as the player) with certain amounts of visible details. However, for mid-range and low-end display devices, the viewer may not be able to see game-related characters or objects in dark scenes.
The viewer may increase the overall brightness by adjusting the brightness or contrast of the display device, so that the viewer can see objects in dark scenes. However, when the player leaves the dark scenes or exits the game, the display device is still in a high brightness or high contrast environment. As a result, the overall brightness of the display device is too high. Thus, not only the viewer may feel glare upon viewing the display device, but also the viewer needs to adjust the brightness setting back to default setting manually.
In view of this, in one embodiment, a computer for adjusting scene brightness is provided. The computer for adjusting scene brightness is configured to adjust display brightness of various scenes of an application program and comprises a display device, a power unit, a storage unit, a processing unit, and a detection unit. The display device has a logic unit and a backlight unit. The detection unit is configured to fetch a logic current value of the logic unit. The power unit is connected to the logic unit and the backlight unit. The storage unit stores a lookup table, and the lookup table records default scene current values and target brightness currents matching a plurality of application scenes of the application program. The processing unit is connected to the display device, the power unit, the storage unit, and the detection unit. The processing unit is configured to execute the application program to fetch a current scene and the logic current value, the processing unit is configured to select a target brightness current as a selected target brightness current according to the current scene or the logic current value, and the processing unit drives the power unit to provide the selected target brightness current for the backlight unit. The computer can adjust the display brightness according to the current scene, and the user does not need to adjust the brightness of the display device manually. Moreover, when the application scene is changed, the user does not need to adjust the brightness of the display device again.
In one embodiment, a method for adjusting scene brightness is provided. The method comprises executing an application program by using a computer to fetch a current scene; fetching a logic current value of a logic unit of a display device by using the computer; looking up a lookup table according to the current scene or the logic current value by using the computer to select a target brightness current among target brightness current, wherein the lookup table records a plurality of scene information of the application program, and each of the scene information matches a corresponding one of default scene current values and a corresponding one of the target brightness currents; and providing the target brightness current for a backlight unit of the display device by using the computer.
In one embodiment, a processing method for establishing scene brightness is provided. The processing method comprises fetching a panel attribute of a display device by using a computer; fetching a logic current value of the display device for an application scene operated in an application program by using the computer; adjusting a brightness of the display device to a target brightness by using the computer to fetch a target brightness current of the target brightness; and recording the logic current value and the target brightness current to a lookup table according to the application scene by using the computer.
According to one or some embodiments, the computer and method for adjusting scene brightness provides the computer with automatic brightness adjustment function in different application scenes. Therefore, the user does not need to set the brightness or contrast for the display or the driver manually. Moreover, after the scene of the application program is changed, the computer can adjust the brightness according to the current application scene. Hence, the adjustment costs (such as the adjustment time or the setting values) for settings of the display device by the user can be reduced.
The disclosure will become more fully understood from the detailed description given herein below for illustration only, and thus not limitative of the disclosure, wherein:
Please refer to
The type of the display device 120 may be, but not limited to, an IPS (In-Plane Switching) panel, a PLS (Plane-to-Line) panel, a VA (Vertical Alignment) panel, or a TN (Twisted Nematic) panel. The display device 120 further comprises a logic unit 121 and a backlight unit 122. The detection unit 150 is connected to the processing unit 140, the logic unit 121, and the backlight unit 122. The logic unit 121 controls the extent of the rotation of the liquid crystal molecules to adjust colors or brightness (transmissivity) of different regions of the display device 120. The backlight unit 122 is configured to provide the overall brightness of the display device 120. The power unit 110 is connected to the logic unit 121 and the backlight unit 122 respectively to provide the logic unit 121 and the backlight unit 122 with electricity for operation. The detection unit 150 is connected between the power unit 110 and the logic unit 121, the detection unit 150 is configured to fetch a logic current value 161 of the logic unit 121 upon the logic unit 121 is operating. The detection unit 150 transmits the logic current value 161 to the processing unit 140. The power unit 110 provides the operation current 162 for the backlight unit 122.
The storage unit 130 stores a monitoring program 131, a plurality of application programs 132, and a lookup table 133. The lookup table 133 records a plurality of application scenes of each of the application programs 132, and each of the application scenes matches a corresponding one of default scene current values 164 and a corresponding one of target brightness currents 165, as shown in
The display device 120 outputs different scene brightness for different application scenes. Therefore, the logic unit 121 has to control the rotation of liquid crystal molecules. Accordingly, different scene brightness match different operation currents 162, and the operation currents 162 are referred to as default scene current values 164. Moreover, it is understood that the brightness difference between a first scene and a second scene may be different from the brightness difference between the first scene and a third scene, the difference of the adjusted brightness is referred to as target brightness, and correspondingly the adjusted brightness is referred to as target brightness current 165, as shown in
When the processing unit 140 executes the application program 132, the processing unit 140 may fetch the logic current value 161 from the detection unit 150 periodically. The processing unit 140 determines whether the brightness of the display device 120 is to be adjusted or not according to the logic current value 161. The process for determining and adjusting the brightness of the display device 120 by using the processing unit 140 can be referred to
Firstly, the processing unit 140 executes the monitoring program 131. The monitoring program 131 may be an individual application program 132 or a system program built in the operation system. After the application program 132 is executed, the monitoring program 131 may fetch the application program 132 through the operation system. The monitoring program 131 compares the fetched application program 132 with the lookup table 133. In response to that the lookup table 133 does not have the fetched application program 132, the monitoring program 131 does not perform operations regarding looking up and selecting target brightness current 165. In response to that the lookup table 133 has the fetched application program 132, the monitoring program 131 can fetch the application scene and the logic current value 161 from the detection unit 150 periodically.
The monitoring program 131 may take the color change of the application program 132 as a basis for identification of the current application scene. In general, when the game program displays a darker scene, the overall changes of pixels of the display device 120 are consistent and the color values of the pixels of the display device 120 are values within darker regions. Taking the display device 120 adopting RGB system as an example, the pixels in darker scenes may be distributed between RGB(0,0,0) and RGB(20,20,20). Moreover, the monitoring program 131 may fetch the execution status of the application program 132 through the operation system so as to determine the contents of the application scene. Alternatively, in some embodiments, the monitoring program 131 may determine the application scene through the hardware information, the driver, or the register of the display card.
When the processing unit 140 executes the application program 132, the monitoring program 131 fetches the logic current value 161 of the logic unit 121 during the execution of the application program 132. In response to that the colors of the pixels in the application scene meet the distribution mentioned above, the monitoring program 131 determines that the application scene is a current scene. The monitoring program 131 then fetches the logic current value 161 of the current scene. The monitoring program 131 looks up the lookup table 133 according to the current scene or the logic current value 161 to select the target brightness current 165 corresponding to the current scene or the logic current value 161, as shown in
In some embodiments, the monitoring program 131 looks up the lookup table 133 according to the current scene, and the monitoring program 131 fetches an application scene and a default scene current value 164 corresponding to the current scene. Next, the monitoring program 131 determines whether the logic current value 161 matches the default scene current value 164 or not. In response to that the logic current value 161 does not match the default scene current value 164, the processing unit 140 selects the target brightness current 165 and drives the power unit 110 to provide the selected target brightness current 165 for the backlight unit 122. The processing unit 140 provides different matching criteria for the logic current value 161 and the default scene current value 164 according to the types of the display device 120.
In the case that the display device 120 is an IPS panel, a PLS panel, or a VA panel, in response to that the logic current value 161 is less than the default scene current value 164, the condition is defined as not matched. By applying a voltage to the IPS panel, the PLS panel, or the VA panel, the amount of the transmitted light of the backlight unit 122 to the LCD can be increased, thereby increasing the brightness of the screen of the display device 120.
Therefore, upon the voltage is not applied to the IPS panel, the PLS panel, or the VA panel, the screen of the display device 120 is completely black. On the other hand, when the screen of the display device 120 is completely white, the logic current value 161 of the logic unit 121 is a maximum value. The monitoring program 131 can determine whether the screen of the display device 120 is dark or bright according to the logic current value 151 of the logic unit 121. In response to that the logic current value 161 does not match the default scene current value 164, the target brightness current 165 is greater than the logic current value 161. The monitoring program 131 selects the target brightness current 165, and the power unit 110 provides the target brightness current 165 for the backlight unit 122, thereby increasing the amount of the light emission of the backlight unit 122. Hence, because the brightness of light emission of the backlight unit 122 is increased, the overall brightness of the display device 120 is also increased.
Taking the embodiment shown in
In the case that the display device 120 is a TN panel, in response to that the logic current value 161 is greater than the default scene current value 164, the condition is defined as not matched. By applying a voltage to the TN panel, the logic unit 121 blocks the light from the backlight unit 122, thereby reducing the overall brightness of the display device 120. In response to that the logic current value 161 does not match the default scene current value 164, the monitoring program 131 fetches a target brightness current 165 according to the current scene. In other words, in some embodiments, in response to that the logic current value 161 does not match the default scene current value 164, the target brightness current 165 is less than the logic current value 161. The power unit 110 provides the selected target brightness current 165 for the backlight unit 122, thereby increasing the amount of the light emission of the backlight unit 122. Hence, even though the logic unit 121 of the display device 120 is not adjusted, the overall brightness of the display device 120 can still be increased.
In some embodiments, the monitoring program 131 may fetch the logic current value 161 periodically. Therefore, the monitoring program 131 can temporarily store the fetched logic current value 161 in the storage unit 130. Upon the monitoring program 131 is fetching a current logic current value 161, the monitoring program 131 may loads the previously fetched logic current value 161 and conduct a calculation for the difference between the previously fetched logic current value 161 and the current logic current value 161 to fetch a current change amount. The monitoring program 131 determines whether the current change amount is greater than a threshold value. In response to that the current change amount is greater than the threshold value, the monitoring program 141 determines that the brightness of the current scene is changed to be a “dark scene”. Therefore, the monitoring program 131 looks up a default scene current value 164 and a target brightness current 165 corresponding to the default scene current value 164 in the lookup table 133 according to the current logic current value 161.
The monitoring program 131 drives the power unit 110 according to the target brightness current 165 to allow the power unit 110 to provide the target brightness current 165 instead for the backlight unit 122 of the display device 120. Because the new target brightness current 165 is greater than the original current value, the brightness of light emission of the backlight unit 122 is increased, thereby increasing the brightness of the screen of the display device 120.
When the application scene is changed again, the monitoring program 131 also executes the step S320 to fetch the logic current value 161. The monitoring program 131 determines whether the new application scene is brighter, darker, or unchanged, compared with the previous application scene. In the case that the new application scene is brighter, the monitoring program 131 can change the target brightness current 165 back to the operation current 162. The monitoring program 131 lowers the brightness of the backlight unit 122 to decrease the brightness of the screen of the display device 120 to meet the new application scene. Therefore, the user does not need to adjust the brightness of the display device 120 manually.
In some embodiments, the computer 100 is further configured to perform a processing method for establishing related information of a lookup table 133. The computer 100 comprises a power unit 110, a display device 120, a storage unit 130, and a processing unit 122 can be referred to
In some embodiments, the lookup table 133 further records the panel attribute. The panel attribute may be at least one selected from the group consisting of panel type, a panel size, a panel resolution, a refresh rate, a response time, a color gamut range, and a connection interface. The panel type may be IPS panel, PLS panel, VA panel, or TN panel. The connection interface may be but not limited to a High Definition Multimedia Interface (HDMI), a DisplayPort interface, or an Embedded DisplayPort (eDP) interface.
The processing unit 140 executes the table-establishing program 134 to establish current values corresponding to different scene brightness in the lookup table 133. The processing method for establishing and adjusting scene brightness can be referred to
Firstly, the processing unit 140 executes the table-establishing program 134. The table-establishing program 134 may fetch the panel attribute of the display device 120 through the operation system or the Basic Input/Output System (BIOS). The table-establishing program 134 records the panel attribute in the lookup table 133. After the processing unit 140 executes the application program 132, the table-establishing program 134 fetches the logic current value 161 of the display device 120 upon the application program 132 is executing. At the same time, the table-establishing program 134 can record logic current values 161 corresponding to various application scenes, and the recorded logic current values 161 are the default scene current values 164. In other words, in some embodiments, each of the application scenes records a corresponding one of the default scene current values 164.
Next, the table-establishing program 134 increases the brightness of the backlight unit 122 until the brightness of the display device 120 reaches a target brightness. The target brightness may be determined by a testing personnel or a color correction device. The table-establishing program 134 fetches the driving current value for driving the backlight unit 122 according to the target brightness, and the table-establishing program 134 records the fetched current value in the column of the target brightness current 153 of the lookup table 133. The table-establishing program 134 records default brightness current values (identical to the default scene current values 164) and the target brightness current 165 for different application scenes.
Taking that the computer 100 is a notebook computer for example, where the notebook computer has an eDP interface, a 15-inch IPS panel, a resolution of 1920*1080, a refresh rate of 240 Hz. In the eDP interface, the 36th to 39th pins (BL_PWR) are configured to control the brightness of the backlight unit 122, while the 18th to 21st pins (LCD_VCC) are configured to control the logic unit 121 to rotate the liquid crystal molecules. As mentioned, for the IPS panel, in the case that the screen of the display device 120 is completely black, the liquid crystal molecules are not needed to be rotated, and thus the logic current value 161 for operating the display device 120 is a minimum value. On the other hand, in the case that the screen of the display device is completely white, the logic current value 161 for operating the display device 120 is a maximized value. The table-establishing program 134 may provide different display screen (identical to application scenes) (for example, a black and white Mosaic pattern screen or an RGB Mosaic pattern screen) as the reference for arranging the logic current values 161.
Upon the notebook computer executes different application programs 132 (for example, Diablo 4, The Witcher 3, or other games), the table-establishing program 134 fetches the logic current values 161 according to the daytime scenes and nighttime scenes of the game, and the table-establishing program 134 lists the logic current values 161 of different application scenes as below, for example.
The table-establishing program 134 can record the current value corresponding to the scene in the lookup table 133. Moreover, the table-establishing program 134 can fetch the difference between the current value corresponding to the daytime scenes of the application program 132 and the current value corresponding to the nighttime scenes of the application program 132, and the table-establishing program 134 can records the difference as the current change amount in the lookup table 133.
According to one or some embodiments, the computer 100 and method for adjusting scene brightness provides the computer 100 with automatic brightness adjustment function in different application scenes. Therefore, the user does not need to set the brightness or contrast for the display device 120 or the driver manually. Moreover, after the scene of the application program 132 is changed, the computer 100 can adjust the brightness according to the current application scene. Hence, the adjustment costs (such as the adjustment time or the setting values) for settings of the display device 120 by the user can be reduced.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112148880 | Dec 2023 | TW | national |
