TWI683302B - Electronic system and electronic device for performing viewing-angle enhancement regarding display panel - Google Patents

Abstract

An electronic system for performing viewing-angle enhancement regarding a display panel includes a depth camera, an eye-tracking device, and an electronic device. The depth camera may capture at least one image of a user and obtain depth information of the user. At least one processing circuit of the electronic device may control operations of the electronic device and perform image processing, for example, determine whether the user is positioned outside a viewing angle range of the display panel according to the aforementioned at least one image and the depth information; when the user is positioned outside the viewing angle range, utilize the eye-tracking device to perform eye tracking to determine a target region within a display region of the display panel; and perform partial image adjustment regarding the target region to generate display data, for being displayed by the display panel. An associated electronic device is also provided.

Description

Electronic system and electronic device for enhancing viewing angle of display panel

The present invention relates to display control, in particular to an electronic system and related electronic device for viewing-angle enhancement of a display panel.

At present, most of the e-sports displays on the market use twisted nematic (Tnisted Nematic, "TN" for short) liquid crystal panels, whose liquid crystal molecules rotate faster than other types of panels. With the advancement of technology, the response time of TN displays using TN liquid crystal panels is much faster. For example, the gray-scale response time can be less than 2 milliseconds, but the biggest disadvantage is the angle of view. When the user is not directly facing the TN liquid crystal panel and is outside the viewing angle range, the characteristics of the image seen by the user such as brightness, contrast, color, etc. are usually distorted. Some solutions have been proposed in the related art (such as adding a compensation film on a glass substrate, improving the arrangement of liquid crystal molecules in the glass substrate, etc.) to try to solve this problem. However, the viewing angle may still be insufficient in certain situations. Assume that the horizontal viewing angle can reach 160, or even 170 degrees. When the user changes to use a larger-sized display, the user's position may not move backward. In this situation, the distance between the user and the monitor has not become farther, so the angle of the user when viewing some local areas in the entire screen displayed by the monitor may be very large, which means that the above problem still exists. Therefore, a novel architecture is needed to improve user experience.

An object of the present invention is to provide a viewing angle enhancement for a display panel Electronic system and related electronic devices to solve the above problems.

Another object of the present invention is to provide an electronic system and related electronic device for enhancing the viewing angle of a display panel to improve the user experience.

At least one embodiment of the present invention provides an electronic system for enhancing the viewing angle of a display panel. The electronic system may include a depth camera (Depth Camera), an eye-tracking device (Eye-tracking Device) and an electronic device, wherein the electronic device may be coupled to the depth camera and the eye-tracking device, and may include at least One processing circuit. The depth camera can be used to capture at least one image of a user and obtain depth information of the user, and the eye tracking device can be used to perform eye tracking (Eye Tracking) on the user. In addition, the at least one processing circuit can be used to control the operation of the electronic device and perform image processing. For example, the at least one processing circuit may determine whether the user is outside the viewing angle range of the display panel based on the at least one image and the depth information. When the user is outside the viewable range, the at least one processing circuit may use the eye tracking device to perform eye tracking on the user to determine a target area in a display area of the display panel, and The target area is adjusted locally to generate display data for display on the display panel.

At least one embodiment of the present invention provides an electronic device. The electronic device may include a depth camera, an eye tracking device, and at least one processing circuit, wherein the at least one processing circuit may be coupled to the depth camera and the eye tracking device. The depth camera can be used to capture at least one image of a user and obtain depth information of the user, and the eye tracking device can be used to track the user's eye movements. In addition, the at least one processing circuit can be used to control the operation of the electronic device and perform image processing. For example, the at least one processing circuit may determine whether the user is outside the viewing angle range of the display panel based on the at least one image and the depth information. When the user is outside the viewable range, the at least one processing circuit may use the eye tracking device to perform eye tracking on the user to determine a target area in a display area of the display panel, and Target zone Perform local image adjustment to generate display data for display on the display panel.

One of the advantages of the present invention is that the electronic system and related electronic devices of the present invention can enhance the viewing angle. In particular, the position of the target area can be dynamically determined for local image adjustment. For example, when the user changes to use a larger size display, the user's position may not move backward. Although the user has a large angle when viewing some local areas in the entire screen displayed on the display, the electronic system and related electronic devices of the present invention can perform local image adjustment to enhance the viewing angle. Compared with the related art, the electronic system and related electronic device of the present invention can improve the user experience.

100,200‧‧‧Electronic system

101,700‧‧‧Electronic device

102,702‧‧‧ processing circuit

104,704‧‧‧Code

106,706‧‧‧Image processing circuit

108,116,708,716‧‧‧Interface circuit

110,210,710‧‧‧Display device

112,132,712,732 ‧‧‧ control circuit

114,714‧‧‧sequence controller

118‧‧‧Digital-to-analog conversion circuit

119,719‧‧‧Display panel

120,220,720‧‧‧Depth camera

130,230,730‧‧‧eye tracking device

134,734‧‧‧camera

210D‧‧‧Display area

300‧‧‧Target area

310,320‧‧‧reference point

600‧‧‧Working process

S61, S62, S63, S64, S65, S66, S67, S68

IPD_Center _Standard , IPD_Center‧‧‧Reference point

Length _Horizontal , Depth‧‧‧Distance

θ‧‧‧angle

FIG. 1 is a schematic diagram of an electronic system for enhancing the viewing angle of a display panel according to an embodiment of the invention.

FIG. 2 is a reference point used in a control scheme for a method for enhancing the viewing angle of a display panel according to an embodiment of the invention.

Figure 3 shows a first set of reference points and related parameters used in the control scheme.

Figure 4 illustrates a second set of reference points and target areas used in the control scheme.

Figure 5 shows the relevant parameters of the target zone.

FIG. 6 illustrates a workflow of the method in an embodiment.

FIG. 7 is a schematic diagram of an electronic device according to an embodiment of the invention.

FIG. 1 is a schematic diagram of an electronic system 100 for enhancing viewing angle of a display panel according to an embodiment of the invention. The electronic system 100 may include an electronic device 101, a display device 110, a depth camera 120, and an eye tracking device 130. The electronic device 101 may include at least one Processing circuits (such as one or more processing circuits), such as the processing circuit 102 (which can execute the program code 104) and the image processing circuit 106, and may include at least one interface circuit (such as one or more interface circuits), which may be called It is an interface circuit 108, in which the processing circuit 102 may include at least one processor such as a central processing unit (CPU) and related circuits such as memory, etc., and the image processing circuit 106 may be implemented as an independent display card, which may include At least one processor for image processing, such as a graphics processing unit (GPU), and the interface circuit 108 may include an interface circuit conforming to the Universal Serial Bus (USB) standard, but the invention is not limited to this . Examples of the electronic device 101 may include (but are not limited to): a personal computer (Personal Computer, PC) such as a desktop personal computer (Desktop Computer).

In addition, the display device 110 may include a control circuit 112 for controlling the display device 110, an interface circuit 116 for coupling the display device 110 to the electronic device 101 (especially, the image processing circuit 106), and a digital-analog conversion The circuit 118 and a display panel 119 (for example: a liquid crystal display panel), wherein the control circuit 112 may include a timing controller 114, and the interface circuit 116 may include a plurality of sub-circuits, such as a display port (Display-Port, ("DP" for short) standard DP circuit, HDMI circuit for high definition multimedia interface (High Definition Multimedia Interface, "HDMI") standard, and DVI circuit for digital video interface ("DVI") standard And a VGA circuit conforming to the Video Graphics Array ("VGA") standard. For example, the display device 110 may be a liquid crystal display such as a twisted nematic (Twisted Nematic, "TN") liquid crystal display, and the display panel 119 may be a TN liquid crystal panel.

In addition, the depth camera 120 may include a depth detection module (not shown), and the eye tracking device 130 may include a control circuit 132 (which may include an application-specific integrated circuit (ASIC), etc.), And includes at least one camera (for example, one or more cameras), which may be commonly referred to as a camera 134. In particular, the depth camera 120 may be a camera with a function of outputting depth information, and the eye tracking device 130 may be an eye tracking device. Functional human-machine interactive detection device, in which The depth camera 120 and the eye-tracking device 130 can be implemented using existing products on the market, but the invention is not limited thereto.

According to this embodiment, the depth camera 120 can be used to capture at least one image of the user (for example, one or more images, which can include the user's facial image) and obtain depth information of the user, and the eye tracking device 130 can be used for eye tracking of the user. Based on a method for enhancing the viewing angle of a display panel (such as the display panel 119) of the present invention, the at least one processing circuit (eg, the processing circuit 102, and/or the image processing circuit 106) can control the electronic device 101 Operation and image processing, in particular, the following operations can be performed: based on the at least one image and the depth information to determine whether the user is outside the viewing angle range of the display panel 119; when the user is outside the viewing angle range, The eye tracking device 130 is used to perform eye tracking on the user to determine a target area in a display area of the display panel 119; and local image adjustment is performed on the target area to generate display data for the display panel 119 to display. For example, in order to reduce the load on the processing circuit 102, most (or even all) of these operations can be performed by the image processing circuit 106, where the processing circuit 102 can perform other controls (such as the operation of game software), but the present invention does not Limited to this. In some embodiments, the processing circuit 102 and the image processing circuit 106 can share the load of these operations. In some embodiments, when the image processing circuit 106 is not implemented, these operations can be performed by the processing circuit 102.

For ease of understanding, the depth information may include the distance Depth between the user's face and the display panel 119, and the at least one processing circuit (eg, the processing circuit 102, and/or the image processing circuit 106) may be based on the above An image undergoes face detection (face detectioh) to determine at least one parameter (for example, one or more parameters), and determines whether the user is outside the viewing angle range of the display panel 119 according to the at least one parameter and the distance Depth. Moreover, when the user is outside the viewing angle range, at least one of brightness adjustment, contrast adjustment, and saturation adjustment is performed on the plurality of pixels in the target area (for example: brightness adjustment, contrast adjustment, and/or Or saturation adjustment), To enhance the viewing angle, the invention is not limited to this. For example, the at least one processing circuit (for example, the processing circuit 102 and/or the image processing circuit 106) may use the eye tracking device 130 to perform eye tracking on the user to determine whether the user's eyes are focused on A group of reference points in the display area, and the relative position of the target area to the display area is determined according to the coordinate values of the group of reference points, wherein the group of reference points is located in the target area.

FIG. 2 is the reference point IPD_Center _Standard used in the control scheme for the method for enhancing the viewing angle of a display panel according to an embodiment of the present invention, in which the electronic system 200, the display device 210, the depth camera 220 and the eye The motion tracking device 230 can be used as an example of the electronic system 100, the display device 110, the depth camera 120, and the eye tracking device 130, respectively, and the display area 210D of the display panel of the display device 210 (such as a TN liquid crystal panel) can be used as the display panel 119. An example of this display area. The display device 210, the depth camera 220 and the eye-tracking device 230 may be provided together to allow the user to face the display device 210, the depth camera 220 and the eye-tracking device 230 at the same time. For example, the depth camera 220 and the eye tracking device 230 may be located directly above and below the display area 210D, but the invention is not limited thereto. In some embodiments, the depth camera 220 and the eye tracking device 230 may be located directly below and directly above the display area 210D.

For ease of understanding, Figure 2 shows an eye pattern to represent the user's eyes. Assume that the user is located directly in front of the display area 210D and is watching the display area 210D. The reference point IPD_Center _Standard can represent the center point between the two eyes of the user in this situation (for example: the center point of the pupil connection of the two eyes, which can be regarded as the center point of the interpupillary distance (IPD)). Since the reference point IPD_Center _Standard is within the viewing angle range, at least one of the above parameters correspondingly indicates this situation. Therefore, the at least one processing circuit (for example, the processing circuit 102, and/or the image processing circuit 106) may perform face detection based on the at least one image to determine the at least one parameter, and determine that the user is not located Outside the viewing angle range, and therefore it is not necessary to trigger local image adjustment for the target area, but the invention is not limited to this.

其中上述至少一處理電路可透過上列方程式中之至少一者(例如方程式(1)、及/或(2))來進行關於角度θ之計算，以判斷人臉是否偏離該顯示面板(諸如TN液晶面板)之水平可視角(例如：170°；中心位置之左、右側各85°)的範圍之外。舉例來說，當θ>85°，上述至少一處理電路可判斷該使用者位於該顯示面板(諸如TN液晶面板)之可視角範圍以外；否則，上述至少一處理電路可判斷該使用者位於該顯示面板(諸如TN液晶面板)之可視角範圍中。 Figure 3 shows a first set of reference points {IPD_Center _Standard , IPD_Center} and related parameters used in the control scheme, such as distance {Length _Horizontal ,Depth} and angle θ, where at least one of the above parameters may include the distance Length _Horizontal With angle θ. The user is located in front of the display area 210D and is looking at the display area 210D, but not directly in front of the display area 210D. The reference point IPD_Center can represent the center point between the eyes of the user in this situation (for example: the above-mentioned center point of the connection between the pupils of the two eyes). The at least one processing circuit (for example, the processing circuit 102 and/or the image processing circuit 106) may perform face detection based on the at least one image to determine the at least one parameter, and accordingly determine whether the user is within a viewable range In addition, the local image adjustment for the target area can be triggered under the condition that the user is judged to be outside the viewing angle range. According to this embodiment, the at least one processing circuit can perform face detection, and in particular determine the position of the reference point {IPD_Center _Standard ,IPD_Center} based on the at least one image to obtain the distance between the reference points {IPD_Center _Standard ,IPD_Center} Length _Horizontal , And calculate the angle θ of the current position of the face (such as the reference point IPD_Center) from the front position (such as the reference point {IPD_Center _Standard ) according to the distance Depth and Length _Horizontal , as shown below:

The at least one processing circuit can calculate the angle θ through at least one of the above equations (eg, equation (1), and/or (2)) to determine whether the human face deviates from the display panel (such as TN The horizontal viewing angle of the LCD panel (for example: 170°; 85° on the left and right of the center position) is outside the range. For example, when θ>85°, the at least one processing circuit may determine that the user is outside the viewing angle range of the display panel (such as a TN liquid crystal panel); otherwise, the at least one processing circuit may determine that the user is located at the The viewing angle range of the display panel (such as a TN liquid crystal panel).

In this embodiment, it can be assumed that the user hardly Move its head up or down. Therefore, the above-mentioned at least one processing circuit can only enhance the viewing angle for the horizontal offset, but the invention is not limited thereto. In some embodiments, the at least one processing circuit may enhance the viewing angle for the vertical and/or horizontal offsets.

Figure 4 shows a second set of reference points {310, 320} and a target zone 300 used in the control scheme, wherein the target zone 300 and the second set of reference points {310, 320} can be used as the target zone and the set of references, respectively Point example. The reference points 310 and 320 may represent the positions of the user's left and right eyes looking at the display area 210D, such as the positions of the coordinates (x _L , y _L ) and (x _R , y _R ), where x _L and y _L represents the x coordinate value and y coordinate value in the coordinates (x _L , y _L ) of the reference point 310 respectively, and x _R and y _R represent the x coordinate value in the coordinates (x _R , y _R ) of the reference point 320 respectively With y coordinate value. As shown in FIG. 4, the target area 300 may include reference points 310 and 320 and pixels near them. For example, in order not to affect the image quality other than the local image that the user is looking at, the target area 300 may include areas occupied by PR pixels extending from the reference points 310 and 320 respectively, such as (x _L -PR , y _L +PR), (x _L -PR, y _L -PR), (x _R +PR, y _R +PR), and (x _R +PR, y _R -PR) The invention is not limited to this.

Figure 5 shows the relevant parameters of the target area 300, such as four sets of coordinate values (x _L -15, y _L +15), (x _L -15, y _L -15), ( _{x R + 15, y R +15} ) and _{(x R + 15, y R} -15), wherein the lower left corner of the display region shown in FIG. 4 210D may be defined as the origin, but the present invention is not limited thereto. In this embodiment, PR=15, which means that the range of pixels to be enhanced may include the area occupied by 15 pixels extending from the reference points 310 and 320 respectively, such as (x _L -15, y _L +15) , (X _L -15, y _L -15), (x _R +15, y _R +15), and (x _R +15, y _R -15), but the invention is not limited thereto. In some embodiments, PR can be replaced with other values, and the size of the target area 300 can be adjusted accordingly.

FIG. 6 illustrates a workflow 600 of the method in an embodiment. The workflow 600 can be applied to the electronic system 100 shown in FIG. 1, such as the electronic system 200 shown in FIGS. 2 to 4, but the invention is not limited thereto.

In step S61, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) may utilize the depth camera 120 (for example, the depth camera 220) to perform face detection to determine the face deviation parameters such as the above A parameter (for example, distance _horizontal and angle θ).

In step S62, based on the at least one parameter such as the angle θ, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) can determine that the user views the display panel 119 (for example: the display of the display device 210 Whether the angle θ of a panel, such as a TN liquid crystal panel, exceeds the corresponding viewing angle range (such as 85°). According to this embodiment, the at least one processing circuit may determine whether the user is outside the viewing angle range according to whether the angle θ exceeds the corresponding viewing angle range (such as 85°). When θ>85° (this indicates that the user is outside the viewing angle range of the display panel 119), step S63 is entered; otherwise (this indicates that the user is within the viewing angle range of the display panel 119), step S67.

In step S63, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) may use the eye tracking device 130 (for example: the eye tracking device 230) to detect the eyeball position to determine the display The target area in the area (such as the target area 300 in the display area 210D) for local image adjustment. For example, the detection result of the eyeball position detection indicates that the user's left and right eyes are looking at reference points 310 and 320, respectively. Therefore, the at least one processing circuit may determine the position of the target area 300 according to the coordinates (x _L , y _L ) and (x _R , y _R ) of the reference points 310 and 320, such as indicated by the relevant parameters shown in FIG. 5 The location.

In step S64, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) can check whether the position of the target area (such as the target area 300) has changed, in particular, by checking the reference point 310 and Whether the respective coordinates (x _L , y _L ) and (x _R , y _R ) of 320 change to determine whether the position of the target area 300 changes. When the position of the target zone 300 changes (for example, the position of the user's gaze changes, so that at least one of the coordinates (x _L , y _L ) and (x _R , y _R ) (such as the coordinates (x _L , y _L ) , And/or (x _R , y _R )) has just been changed in step S63), go to step S65; otherwise (for example, the position of the user's gaze has not changed at all, and the coordinates (x _L , y _L ) and (x _R , y _R ) is changed in step S63), proceed to step S66.

In step S65, the at least one processing circuit (for example: the processing circuit 102, and/or The image processing circuit 106) can cancel the local image adjustment, in particular, restore the local image adjustment setting applied to the previous position of the target area (such as the target area 300) to a normal state, so as to prevent the partial image adjustment from being erroneously applied to the user The latest gaze is out of range.

其中Total_Pixel代表目標區300的總像素數，Pixel_{i,j-Brightness}代表目標區300中之像素Pixel_i,j的亮度，Pixel_start與Pixel_end分別代表在加總運算Σ中之開始像素與結束像素(諸如目標區300中之第一個像素與最後一個像素)，Pixel_{i,j-Saturation}代表像素Pixel_i,j的飽和度，1.1、1.08與1.2可作為該些影像調整參數的例子，而運算子「*=」代表對前面的像素資料(例如Pixel_{i,j-Brightness}或Pixel_{i,j-Saturation})的原數值乘以後面的影像調整參數(諸如1.1或1.2)以產生一調整結果作為此像素資料之最新的數值，並且運算子「/=」代表對前面的像素資料(例如Pixel_{i,j-Brightness})的原數值除以後面的影像調整參數(諸如1.08)以產生一調整結果作為此像素資料之最新的數值，但本發明不限於此。 In step S66, the at least one processing circuit (for example, the processing circuit 102 and/or the image processing circuit 106) can perform local image adjustment on the target area (such as the target area 300). According to this embodiment, the at least one processing circuit may calculate the average brightness AVG of the target area 300 to determine the image adjustment parameters of the local image adjustment. In particular, the local image adjustment may be performed according to the following equation:

Where Total_Pixel represents the total number of pixels in the target area 300, Pixel _{i, j-Brightness} represents the brightness of the pixels Pixel _{i, j} in the target area 300, Pixel_start and Pixel_end represent the start pixel and end pixel (such as The first pixel and the last pixel in the target area 300), Pixel _{i, j-Saturation} represents the saturation of the pixel Pixel _{i, j} , 1.1, 1.08 and 1.2 can be used as examples of these image adjustment parameters, and the operator "*='' represents the original value of the previous pixel data (such as Pixel _{i, j-Brightness} or Pixel _{i, j-Saturation} ) multiplied by the subsequent image adjustment parameters (such as 1.1 or 1.2) to generate an adjustment result as this pixel data The latest value, and the operator "/=" represents the original value of the previous pixel data (such as Pixel _{i, j-Brightness} ) divided by the subsequent image adjustment parameters (such as 1.08) to generate an adjustment result as this pixel data The latest value, but the invention is not limited to this.

According to this embodiment, the at least one processing circuit can perform brightness adjustment, contrast adjustment, and saturation adjustment on the target area 300 in step S66 to enhance the viewing angle. In particular, the brightness adjustment and the brightness can be selectively adjusted according to the average brightness AVG Contrast adjustment. As shown in equation (3), the above-mentioned at least one processing circuit can perform a summation operation Σ on all the pixels {Pixel _{i, j} } brightness {Pixel _{i, j-Brightness} } in the target area 300, and the summation operation The sum of Σ is divided by the total number of pixels Total_Pixel to produce the average brightness AVG. In addition, equations (4) to (7) represent the virtual code (using the C language as an example) to adjust the pixel data of the pixel Pixel _{i, j} (such as Pixel _{i, j-Brightness} and Pixel _{i, j-Saturation} ). For understanding). Equations (4) to (7) indicate that if the brightness Pixel _{i, j-Brightness is} greater than the average brightness AVG, the brightness Pixel _{i, j-Brightness is} adjusted to 1.1 times its original value; if the brightness Pixel _{i, j-Brightness is} less than Average brightness AVG, adjust brightness Pixel _{i,j-Brightness} to (1/1.08) times of its original value; if brightness Pixel _{i,j-Brightness} is equal to average brightness AVG, then maintain brightness Pixel _{i,j-Brightness} not Change; and adjust the saturation Pixel _{i, j-Saturation} to 1.2 times its original value. In addition, when the position of the eyes of the user changes, the at least one processing circuit may previously restore the image adjustment parameters (such as 1.1, 1.08, and 1.2) to normal values (such as 1.00) in step S65, In step S66, brightness adjustment, contrast adjustment, and saturation adjustment are performed for the latest position of the target area 300.

In step S67, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) can check whether the local image adjustment has been canceled, and in particular, check the image adjustment parameters (such as 1.1, 1.08, and 1.2) Whether it has been restored to a normal value (such as 1.00). When the partial image adjustment has been cancelled, step S61 is entered; otherwise, step S68.

In step S68, the at least one processing circuit (for example: the processing circuit 102, and/or the image processing circuit 106) can cancel the local image adjustment, and in particular, restore the image adjustment parameters (such as 1.1, 1.08, and 1.2) to normal Value (such as 1.00).

Based on this method, the electronic system 100 (such as the electronic system 200) can increase the brightness, contrast, and saturation of the target area (such as the target area 300), allowing the user to view the display panel 119 (eg, the display of the display device 210) at various angles Panel, such as TN LCD panel), the image quality can be maintained to ensure a good user experience.

FIG. 7 is a schematic diagram of an electronic device 700 according to an embodiment of the present invention, in which Processing circuit 702, program code 704, image processing circuit 706, interface circuit 708, display device 710, control circuit 712, timing controller 714, interface circuit 716, display panel 719, depth camera 720, eye tracking in the sub-device 700 The device 730, the control circuit 732 and the camera 734 may be similar to the processing circuit 102, the code 104, the image processing circuit 106, the interface circuit 108, the display device 110, the control circuit 112, the timing controller 114, the interface circuit in the electronic system 100, respectively 116. The display panel 119, the depth camera 120, the eye tracking device 130, the control circuit 132, and the camera 134, but the invention is not limited thereto. Compared with the architecture shown in FIG. 1, the display device 710, the depth camera 720 and the eye tracking device 730 in FIG. 7 have been integrated into the electronic device 700. Examples of the electronic device 700 may include (but are not limited to): a personal computer (Personal Computer, PC) such as a laptop personal computer (laptop computer). The content of this embodiment that is similar to the foregoing embodiment will not be repeated here. The above are only the preferred embodiments of the present invention, and all changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

100‧‧‧Electronic system

101‧‧‧Electronic device

102‧‧‧ processing circuit

104‧‧‧Code

106‧‧‧Image processing circuit

108,116‧‧‧Interface circuit

110‧‧‧Display device

112,132‧‧‧Control circuit

114‧‧‧ Timing controller

118‧‧‧Digital-to-analog conversion circuit

119‧‧‧Display panel

120‧‧‧Depth camera

130‧‧‧Eye tracking device

134‧‧‧camera

Claims (10)

An electronic system for viewing-angle enhancement of a display panel includes: a depth camera for capturing at least one image of a user and obtaining depth information of the user; An Eye-tracking Device is used to perform Eye Tracking on the user; and an electronic device is coupled to the depth camera and the Eye Tracking Device, wherein the electronic device includes: At least one processing circuit for controlling the operation of the electronic device and performing image processing, wherein the at least one processing circuit determines whether the user is outside the viewing angle range of the display panel according to the at least one image and the depth information, and When the user is outside the viewable range, the at least one processing circuit uses the eye tracking device to perform eye tracking on the user to determine a target area in a display area of the display panel and for the target The area performs local image adjustment to generate display data for display on the display panel. The electronic system as described in item 1 of the patent application, wherein the depth information includes the distance between the user's face and the display panel; and the at least one processing circuit performs face detection based on the at least one image ( face detection) to determine at least one parameter and determine whether the user is outside the viewing angle range of the display panel according to the at least one parameter and the distance. The electronic system as described in item 1 of the patent application scope, wherein the at least one processing circuit uses the eye-tracking device to perform eye-tracking on the user to determine the eyes of the user It is regarded as a group of reference points in the display area, and the relative position of the target area to the display area is determined according to the coordinate value of the group of reference points, wherein the group of reference points is located in the target area. The electronic system as described in item 1 of the patent scope, wherein the at least one processing circuit performs at least one of brightness adjustment, contrast adjustment, and saturation adjustment on the plurality of pixels in the target area, respectively, to enhance the viewing angle . The electronic system as described in item 1 of the patent application scope further includes: a display device coupled to the electronic device, wherein the display device includes the display panel, and the display device, the depth camera and the eye tracking device It is set together to allow the user to face the display device, the depth camera, and the eye tracking device at the same time. An electronic device for viewing-angle enhancement of a display panel includes: a depth camera, which is used to capture at least one image of a user and obtain depth information of the user; An Eye-tracking Device is used to perform Eye Tracking on the user; and at least one processing circuit is coupled to the depth camera and the Eye-tracking device to control the electronic Device operation and image processing, wherein the at least one processing circuit determines whether the user is outside the viewing angle range of the display panel based on the at least one image and the depth information, and when the user is outside the viewing angle range At this time, the at least one processing circuit uses the eye tracking device to perform eye tracking on the user to determine a target area in a display area of the display panel, and to perform a partial image on the target area Adjust to generate display data for the display panel to display. The electronic device as described in item 6 of the patent application, wherein the depth information includes the distance between the user's face and the display panel; and the at least one processing circuit performs face detection based on the at least one image ( face detection) to determine at least one parameter and determine whether the user is outside the viewing angle range of the display panel according to the at least one parameter and the distance. The electronic device as described in item 6 of the patent application range, wherein the at least one processing circuit uses the eye tracking device to perform eye tracking on the user to determine that the user's eyes are respectively focusing on one of the display areas A group of reference points, and the relative position of the target area to the display area is determined according to the coordinate value of the group of reference points, wherein the group of reference points is located in the target area. The electronic device as described in item 6 of the patent application range, wherein the at least one processing circuit performs at least one of brightness adjustment, contrast adjustment, and saturation adjustment on the plurality of pixels in the target area, respectively, to enhance the viewing angle . The electronic device as described in item 6 of the patent application scope further includes: a display device coupled to the at least one processing circuit, wherein the display device includes the display panel, and the display device, the depth camera and the eye movement The tracking devices are arranged together to allow the user to face the display device, the depth camera and the eye tracking device at the same time.

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