Display device and display method

Abstract

A display device is electrically connected with a control module. The display device comprises a display and an ambient light sensor. The display comprises a time schedule controller, a panel module and a backlight module. The time schedule controller stores a plurality of lookup tables. The lookup tables each correspond to one of the image modes and store a gamma curve and luminance data. The ambient light sensor provides an ambient light brightness signal. The control module determines one of the image modes corresponding to the ambient light brightness signal according to the ambient light brightness signal, and provides an instruction corresponding to the one of the image modes. The time schedule controller provides one of the lookup tables corresponding to the instruction according to the instruction. The panel module adjusts the gamma voltage of the image according to the gamma curve of the one of the lookup tables. The backlight module adjusts the backlight brightness of the panel light source according to the brightness data of the one of the lookup tables.

Description

Technical Field

[0001] The present disclosure relates to a display device and a display method, and more particularly to a display device and a display method capable of improving low-grayscale image details. Background Art

[0002] In existing display devices, the screen brightness is adjusted by adjusting the backlight brightness, allowing the displayed image to be seen under varying light intensities. This method requires increasing the display device's brightness to clearly see low-grayscale images. However, with limited brightness increases, low-grayscale details in the image are blurred. Therefore, a new design is needed to address these issues. Summary of the Invention

[0003] Embodiments of the present disclosure provide a display device having multiple image modes and electrically connected to a control module. The display device includes a display and an ambient light sensor. The display includes a timing controller, a panel module, and a backlight module. The timing controller stores multiple lookup tables, each corresponding to an image mode and storing gamma curves and brightness data. The panel module is electrically connected to the timing controller and configured to display images. The backlight module is electrically connected to the timing controller and configured to provide a panel light source. The ambient light sensor is electrically connected to the display, senses ambient light brightness, and provides an ambient light brightness signal to the control module. Based on the ambient light brightness signal, the control module determines whether the ambient light brightness signal corresponds to an image mode and provides an instruction corresponding to the image mode to the timing controller. The timing controller, based on the instruction, provides a lookup table corresponding to the instruction to the panel module and the backlight module. The panel module adjusts the gamma voltage of the image based on the gamma curve stored in the lookup table. The backlight module adjusts the backlight brightness of the panel light source based on the brightness data stored in the lookup table.

[0004] An embodiment of the present disclosure provides a display method applicable to a display device, wherein the display device has multiple image modes and is electrically connected to a control module. The display method includes the following steps. The ambient light brightness is sensed by an ambient light sensor of the display, and an ambient light brightness signal is provided to the control module according to the ambient light brightness. The control module determines, based on the ambient light brightness signal, that the ambient light brightness signal corresponds to one of the image modes, and provides an instruction corresponding to the one of the image modes to the timing controller of the display. The timing controller provides, based on the instruction, one of a plurality of lookup tables corresponding to the instruction to the panel module and the backlight module of the display, wherein each lookup table corresponds to one of the image modes, and each lookup table stores a gamma curve and brightness data. The panel module adjusts the gamma voltage of the image displayed by the display panel according to the gamma curve stored in the one of the lookup tables. The backlight module adjusts the backlight brightness of the panel light source provided by the backlight module according to the brightness data stored in the one of the lookup tables. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 Schematic diagram of a display device according to one embodiment of the present disclosure.

[0006] Figure 2A FIG. 4 is a waveform diagram of a gamma curve according to an embodiment of the present disclosure.

[0007] Figure 2B FIG. 4 is a waveform diagram of a gamma curve according to another embodiment of the present disclosure.

[0008] Figure 2C FIG. 4 is a waveform diagram of a gamma curve according to another embodiment of the present disclosure.

[0009] Figure 3 Schematic diagram of a display device according to another embodiment of the present disclosure.

[0010] Figure 4 4 is a flow chart of a display method according to an embodiment of the present disclosure.

[0011]

Explanation of symbols

[0012] 100,300: Display device

[0013] 110,310:Display

[0014] 120: Timing controller

[0015] 130: Panel module

[0016] 131:Data Driver

[0017] 132: Panel

[0018] 140,320: Backlight module

[0019] 150: Ambient light sensor

[0020] 160: Control module

[0021] 321: Backlight driver

[0022] 322: Backlight

[0023] S402~S410: Steps DETAILED DESCRIPTION

[0024] To make the objectives, features, and advantages of this disclosure more readily apparent, the following describes embodiments in detail with reference to the accompanying drawings. To facilitate understanding and simplify the illustrations, many of the drawings in this disclosure may depict only a portion of the entire electronic device, and certain components in the drawings are not drawn to scale.

[0025] This disclosure provides various examples to illustrate the technical features of various embodiments of the present disclosure. The configurations, quantities, and dimensions of the components in these examples are for illustrative purposes only and are not intended to limit the present disclosure. Furthermore, any duplication of component numbers between the examples and the drawings is for simplification and does not imply a correlation between the different examples.

[0026] Furthermore, the ordinal numbers used in the specification and claims, such as "first" and "second", to modify the components of the claims, do not themselves imply or represent any previous ordinal number of the claimed components, nor do they represent the order of one claimed component and another claimed component, or the order in the manufacturing method. The use of these ordinal numbers is to enable a claimed component with a certain name to be clearly distinguished from another claimed component with the same name.

[0027] In the present disclosure, the features of each embodiment may be mixed and matched as desired as long as they do not violate the spirit of the invention or conflict with each other.

[0028] In some embodiments of the present disclosure, the terms “coupled” and “electrically connected” may include any direct and indirect electrical connection means unless otherwise defined.

[0029] As used herein, the terms “substantially” and “about” generally mean a range within 10%, or within 5%, or within 3%, or within 2%, or within 1%, or within 0.5% of a given value.

[0030] The word "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to".

[0031] Furthermore, the terms "connection" and "coupling" herein include any direct and indirect means of connection. Therefore, when a component or a film layer is referred to as being "connected" to another component or a film layer, it may be directly connected to the other component or film layer, or there may be an intervening component or film layer between the two. When a component is referred to as being "directly connected" to another component or a film layer, there may not be an intervening component or film layer between the two. The electrical connections or couplings described in this disclosure may refer to direct connections or indirect connections. In the case of direct connections, the endpoints of the components on the two circuits are directly connected or connected to each other by a conductor segment, and in the case of indirect connections, there may be switches, diodes, capacitors, inductors, resistors, other suitable components, or a combination of the above components between the endpoints of the components on the two circuits, but not limited thereto.

[0032] In one embodiment, the electronic device may include a display device, a backlight device, an antenna device, a sensing device, a splicing device, or a therapeutic diagnostic device, but is not limited thereto. The electronic device may be a bendable or flexible electronic device. The display device may be a non-luminous display device or a luminous display device. The antenna device may be a liquid crystal antenna device or a non-liquid crystal antenna device, and the sensing device may be a sensing device that senses capacitance, light, heat, or ultrasound, but is not limited thereto. The electronic components may include passive components and active components, such as capacitors, resistors, inductors, diodes, transistors, etc. The diode may include a light-emitting diode or a photodiode. The light-emitting diode may include, for example, an organic light-emitting diode (OLED), a sub-millimeter light-emitting diode (mini LED), a micro light-emitting diode (micro LED), or a quantum dot light-emitting diode (quantum dot LED), but is not limited thereto. The splicing device may be, for example, a display splicing device or an antenna splicing device, but is not limited thereto. It should be noted that the electronic device may be any combination of the aforementioned, but is not limited thereto. The following description will use a display device as an electronic apparatus to illustrate the present disclosure, but the present disclosure is not limited thereto.

[0033] Figure 1 1 is a schematic diagram of a display device according to one embodiment of the present disclosure. In this embodiment, the display device 100 can have multiple image modes and is electrically connected to the control module 160. In some embodiments, the image modes can include a night mode, an evening or rainy day mode, a day mode, and a daytime strong light mode, but the present disclosure is not limited thereto. In some embodiments, the control module 160 can include a microcontroller (MCU), a vehicle control unit (VCU), or other suitable controller, but the present disclosure is not limited thereto.

[0034] Please refer to Figure 1 The display device 100 may include at least a display 110 and an ambient light sensor 150 . The display 110 may include a timing controller (T-CON) 120 , a panel module 130 , and a backlight module 140 .

[0035] The timing controller 120 can store multiple lookup tables, each of which can correspond to one of the image modes of the display device 100. In addition, each of the lookup tables can store gamma curves and brightness data. For example, the first lookup table corresponds to a night mode of the image mode, the second lookup table corresponds to an evening or rainy day mode of the image mode, the third lookup table corresponds to a daytime bright light mode of the image mode, and the fourth lookup table corresponds to a daytime mode of the image mode, but the present disclosure is not limited to this. In other embodiments, the user can adjust the image mode and the number of lookup tables according to their needs.

[0036] In addition, the gamma curve stored in the lookup table can be generated by way 1. The low gray level is set to a constant value (such as Figure 2A As shown), method 2. Set the high grayscale to a fixed value (such as Figure 2B As shown), method 3. Grayscale segment adjustment (as shown Figure 2C As shown), method 4. linear extension, method 5. proportional increase or decrease, method 6. gamma value adjustment, method 7. other formula adjustment or their combination. Figure 2A 、 Figure 2B 、 Figure 2C In the figure, the X-axis represents grayscale, and the Y-axis represents normalized brightness. The normalized brightness is, for example, the brightness of the display 110 subjected to normalization processing, and the brightness value of the normalized brightness ranges from 0 to 1. In addition, the brightness value "0" of the normalized brightness corresponds to the minimum brightness value of the display 110, and the brightness value "1" of the normalized brightness corresponds to the maximum brightness value of the display 110.

[0037] For example, the gamma curve of the first lookup table can be generated by method 1, method 1 + method 4, method 1 + method 5, or method 6, but the present disclosure is not limited thereto. The gamma curve of the second lookup table can be generated by method 3, method 6, or method 7, but the present disclosure is not limited thereto. The gamma curve of the third lookup table can be generated by method 2, method 2 + method 4, method 2 + method 5, or method 6, but the present disclosure is not limited thereto. The gamma curve of the fourth lookup table can be the normal gamma curve of the display device 100, for example, a gamma 2.2 curve, but the present disclosure is not limited thereto.

[0038] In addition, the brightness information of the first lookup table is, for example, 30% to 50% of the startup brightness of the display device 100, but the present disclosure is not limited to this. Further, the brightness information of the first lookup table may be 40% of the startup brightness of the display device 100. The brightness information of the second lookup table is, for example, 70% to 90% of the startup brightness of the display device 100, but the present disclosure is not limited to this. Further, the brightness information of the second lookup table may be 80% of the startup brightness of the display device 100. The brightness information of the third lookup table is, for example, 110% to 130% of the startup brightness of the display device 100, but the present disclosure is not limited to this. Further, the brightness information of the third lookup table may be 120% of the startup brightness of the display device 100. The brightness information of the fourth lookup table is, for example, 100% of the startup brightness of the display device 100, that is, the normal startup brightness of the display device 100, but the present disclosure is not limited to this.

[0039] The panel module 130 can be electrically connected to the timing controller 120 and used to display images. In some embodiments, the panel module 130 may include a data driver 131 and a panel 132. The data driver 131 can be electrically connected to the timing controller 120, receive control signals generated by the timing controller 120, and generate drive signals. The panel 132 can be electrically connected to the data driver 131, receive drive signals generated by the data driver 131, and display corresponding images. In some embodiments, the panel 132 may be a liquid crystal display (LCD) panel, but the present disclosure is not limited thereto.

[0040] The backlight module 140 can be electrically connected to the timing controller 120 and used to provide a panel light source, i.e., the light source required by the panel module 130. Furthermore, the backlight module 140 can be disposed adjacent to the panel module 130. In some embodiments, the backlight module 140 can be disposed around or to the side of the panel module 130, but the present disclosure is not limited thereto. In some embodiments, the backlight module 140 can be disposed vertically below the panel module 130, but the present disclosure is not limited thereto.

[0041] In some embodiments, the display 110 further includes a cover glass (CG) (not shown). In some embodiments, the panel module 130 (panel 132) may be disposed between the cover glass and the backlight module 140, but the present disclosure is not limited thereto. In some embodiments, the cover glass may be disposed above the panel module 130 (panel 132), but the present disclosure is not limited thereto.

[0042] The ambient light sensor 150 can be electrically connected to the display 110 and provide an ambient light brightness signal to the control module 160. In other words, the ambient light sensor 150 can sense the ambient light brightness, generate a corresponding ambient light brightness signal according to the ambient light brightness, and provide the ambient light brightness signal to the control module 160.

[0043] In some embodiments, the ambient light sensor 150 may be disposed below the display module 120 (panel 132), but the present disclosure is not limited thereto. In some embodiments, the ambient light sensor 150 may be disposed below the cover glass, but the present disclosure is not limited thereto. In some embodiments, the ambient light sensor 150 may be embedded in the bezel of the display 110, but the present disclosure is not limited thereto. In some embodiments, the ambient light sensor 150 may be a red, green, and blue sensor (RGB sensor), an infrared sensor (IR sensor), or a red, green, and blue infrared sensor (RGB-IR sensor), but the present disclosure is not limited thereto.

[0044] In this embodiment, after the control module 160 receives the ambient light brightness signal provided by the ambient light sensor 150, the control module 160 can determine which image mode the ambient light brightness signal corresponds to based on the ambient light brightness signal. In other words, the control module 160 can determine which image mode the illumination corresponds to based on the illumination in the ambient light brightness signal.

[0045] For example, when the illuminance of the ambient light brightness signal is less than a first threshold, the control module 160 may determine that this illuminance corresponds to the night mode of the image mode. In this embodiment, the first threshold is, for example, 50 lux (Lux, lx), but the present disclosure is not limited to this. When the illuminance of the ambient light brightness signal is between the first threshold and the second threshold, the control module 160 may determine that this illuminance corresponds to the evening or rainy day mode of the image mode. In this embodiment, the second threshold is, for example, greater than the first threshold, and the second threshold is, for example, 4000 lx, but the present disclosure is not limited to this.

[0046] When the illuminance of the ambient light brightness signal is between the second and third thresholds, the control module 160 may determine that this illuminance corresponds to the daytime mode of the image mode. In this embodiment, the third threshold is, for example, greater than the second threshold, and the second threshold is, for example, 30,000 lx, but the present disclosure is not limited thereto. When the illuminance of the ambient light brightness signal is greater than or equal to the third threshold, the control module 160 may determine that this illuminance corresponds to the daytime high light mode of the image mode.

[0047] Then, the control module 160 can provide a command corresponding to one of the image modes to the timing controller 120. In other words, the control module 160 can generate a corresponding command to the timing controller 120 according to the night mode, dusk or rainy day mode, daytime bright light mode or daytime mode.

[0048] Afterwards, the timing controller 120 can provide one of the lookup tables corresponding to the instruction to the panel module 130 and the backlight module 140 based on the instruction. For example, when the instruction corresponds to night mode, the timing controller 120 can provide a first lookup table to the panel module 130 and the backlight module 140. When the instruction corresponds to dusk or rainy day mode, the timing controller 120 can provide a second lookup table to the panel module 130 and the backlight module 140. When the instruction corresponds to daytime high light mode, the timing controller 120 can provide a third lookup table to the panel module 130 and the backlight module 140. When the instruction corresponds to daytime mode, the timing controller 120 can provide a fourth lookup table to the panel module 130 and the backlight module 140.

[0049] Then, the panel module 130 may adjust the gamma voltage of the image displayed by the panel module 130 according to the gamma curve stored in one of the lookup tables. That is, when the panel module 130 receives the first lookup table, the panel module 130 may adjust the gamma voltage of the image displayed by the panel module 130 according to the gamma curve stored in the first lookup table (e.g., the gamma curve generated by Method 1, Method 1+Method 4, Method 1+Method 5, or Method 6). When the panel module 130 receives the second lookup table, the panel module 130 may adjust the gamma voltage of the image displayed by the panel module 130 according to the gamma curve stored in the second lookup table (e.g., the gamma curve generated by Method 3, Method 6, or Method 7).

[0050] When the panel module 130 receives the third lookup table, the panel module 130 may adjust the gamma voltage of the image displayed by the panel module 130 according to the gamma curve stored in the third lookup table (e.g., the gamma curves generated by Mode 2, Mode 2 + Mode 4, Mode 2 + Mode 5, or Mode 6). When the panel module 130 receives the fourth lookup table, the panel module 130 may adjust the gamma voltage of the image displayed by the panel module 130 according to the gamma curve stored in the fourth lookup table (e.g., the normal gamma curve).

[0051] Furthermore, the backlight module 140 can adjust the backlight brightness of the panel light source provided by the backlight module 140 based on the brightness data stored in one of the lookup tables. Specifically, when the backlight module 140 receives the first lookup table, the backlight module 140 can adjust the backlight brightness of the panel light source provided by the backlight module 140 based on the brightness data stored in the first lookup table (e.g., 30% to 50% of the startup brightness). When the backlight module 140 receives the second lookup table, the backlight module 140 can adjust the backlight brightness of the panel light source provided by the backlight module 140 based on the brightness data stored in the second lookup table (e.g., 70% to 90% of the startup brightness).

[0052] When the backlight module 140 receives the third lookup table, the backlight module 140 may adjust the backlight brightness of the panel light source provided by the backlight module 140 according to the brightness data stored in the third lookup table (e.g., 110% to 130% of the startup brightness). When the backlight module 140 receives the fourth lookup table, the backlight module 140 may adjust the backlight brightness of the panel light source provided by the backlight module 140 according to the brightness data stored in the fourth lookup table (e.g., 100% of the startup brightness).

[0053] That is, when the ambient light brightness is lower than a first threshold (e.g., 50 lx), the display device 100 has a first image mode, wherein in the first image mode, the backlight brightness is 30% to 50% of the startup brightness, and the gamma voltage is adjusted according to the gamma curve generated by Method 1, Method 1+Method 4, Method 1+Method 5, and Method 6. When the ambient light brightness is between the first threshold (e.g., 50 lx) and the second threshold (e.g., 4000 lx), the display device 100 may have a second image mode, wherein in the second image mode, the backlight brightness is 70% to 90% of the startup brightness, and the gamma voltage is adjusted according to the gamma curve generated by Method 3, Method 6, and Method 7.

[0054] When the ambient light brightness is greater than or equal to a third threshold (e.g., 30,000 lx), the display device 100 may have a third image mode, wherein in the third image mode, the backlight brightness is 110% to 130% of the startup brightness, and the gamma voltage is adjusted according to the gamma curve generated by Method 2, Method 2 + Method 4, Method 2 + Method 5, and Method 6. When the ambient light brightness is between the second threshold (e.g., 4,000 lx) and the third threshold (e.g., 30,000 lx), the display device 100 may have a fourth image mode, wherein in the fourth image mode, the backlight brightness is 100% of the startup brightness, and the gamma voltage is adjusted according to the normal gamma curve.

[0055] In this way, under different light intensities, in addition to adjusting the backlight brightness of the panel light source provided by the backlight module 140, the gamma voltage of the image displayed by the panel module 130 is also changed, so that low grayscale image details can be clearly presented or the image display effect can be improved.

[0056] In some embodiments, when the illumination of the ambient light brightness signal approaches a threshold, control module 160 determines whether to switch image modes based on the illumination and the buffer value. For example, when the illumination of the ambient light brightness signal rises to a level close to the first threshold and exceeds the buffer value, control module 160 may switch from night mode to evening or rainy day mode. Alternatively, when the illumination of the ambient light brightness signal drops to a level close to the first threshold and falls below the buffer value, control module 160 may switch from evening or rainy day mode to night mode. The same applies to the remaining second and third thresholds.

[0057] In some embodiments, the buffer value can be a fixed value, such as 10lx, but the present disclosure is not limited thereto. In some embodiments, the buffer value can be a ratio of the threshold value, and this ratio decreases, for example, as the threshold value increases, but the present disclosure is not limited thereto. For example, when the threshold value is the first threshold value (for example, 50lx), the ratio can be 0.1, that is, the buffer value = (first threshold value * 0.1). When the threshold value is the second threshold value (for example, 4000lx), the ratio can be 0.01, that is, the buffer value = (second threshold value * 0.01). When the threshold value is the third threshold value (for example, 30000lx), the ratio can be 0.001, that is, the buffer value = (third threshold value * 0.001). In this way, the control module 160 can be reduced from continuously switching between the two image modes, causing the image displayed by the display 110 to continuously jump, thereby reducing the quality of the image display.

[0058] Figure 3 FIG. 1 is a schematic diagram of a display device according to another embodiment of the present disclosure. In this embodiment, the display device 300 can have multiple image modes and is electrically connected to the control module 160. The image modes of the display device 300 are different from those of the display device 300. Figure 1 The image mode of the display device 100 is the same or similar, and can be referred to Figure 1 The description of the embodiment of FIG is omitted here. Figure 3 The control module 160 and Figure 1 The control module 160 is the same or similar to Figure 1 The embodiments of the present invention are described in detail, so they will not be repeated here.

[0059] Please refer to Figure 3, the display device 300 may include at least a display 310 and an ambient light sensor 150. The display 310 may include a timing controller 120, a panel module 130 and a backlight module 320. In this embodiment, the timing controller 120 and the panel module 130 are connected to the backlight module 320. Figure 1 The timing controller 120 is the same or similar to the panel module 130, which can be referred to Figure 1 The embodiments of the present invention are described in detail, so they will not be repeated here.

[0060] The backlight module 320 can be electrically connected to the timing controller 120 and used to provide the panel light source, that is, the light source required by the panel module 130. The backlight module 320 is configured in the same manner as Figure 1 The backlight module 140 is configured in the same or similar manner as described above. Figure 1 The embodiments of the present invention are described in detail, so they will not be repeated here.

[0061] In some embodiments, the backlight module 320 may include a backlight driver 321 and a backlight source 322. The backlight driver 321 may be electrically connected to the timing controller 120, receive a control signal generated by the timing controller 120, and generate a drive signal. The backlight source 322 may be electrically connected to the backlight driver 321, receive a drive signal generated by the backlight driver 321, and display a corresponding image. In some embodiments, the backlight source 322 may be a light emitting diode (LED) backlight source or other suitable backlight source, but the present disclosure is not limited thereto.

[0062] The ambient light sensor 150 can be electrically connected to the display 310 and provide an ambient light brightness signal to the control module 160. The setting method of the ambient light sensor 150 is similar to Figure 1 The setting method of the ambient light sensor is the same or similar, please refer to Figure 1 The embodiments of the present invention are described in detail, so they will not be repeated here.

[0063] In some embodiments, ambient light sensor 150 may be a directional ambient light sensor, but the present disclosure is not limited thereto. Alternatively, ambient light sensor 150 may receive light through multiple openings or a rotating mechanism to generate a corresponding ambient light brightness signal. That is, the ambient light brightness of the ambient light sensing signal provided by ambient light sensor 150 may include brightness in a first direction and brightness in a second direction, but the present disclosure is not limited thereto. Furthermore, directional brightness is defined as the area adjacent to the light input in that direction or the area where more than 70% of the light beam is concentrated.

[0064] In this embodiment, after the control module 160 receives the ambient light brightness signal provided by the ambient light sensor 150, the control module 160 can determine, based on the first-direction brightness and the second-direction brightness of the ambient light brightness signal, whether the fifth image mode corresponds to the first-direction brightness and whether the sixth image mode corresponds to the second-direction brightness. In other words, the control module 160 can determine, based on the illuminance of the first-direction brightness and the second-direction brightness in the ambient light brightness signal, which image mode the illuminance corresponds to.

[0065] In this embodiment, assuming that the illuminance of the brightness in the first direction is higher than or equal to the third threshold, and the illuminance of the brightness in the second direction is between the second threshold and the third threshold, the control module 160 can determine that the illuminance of the brightness in the first direction corresponds to the fifth image mode (for example, daytime strong light mode), and the illuminance of the brightness in the second direction corresponds to the sixth image mode (for example, daytime mode).

[0066] Next, the control module 160 may provide a first instruction corresponding to the fifth image mode and a second instruction corresponding to the sixth image mode to the timing controller 120. Thereafter, the timing controller 120 may provide a first lookup table corresponding to the first instruction and a second lookup table corresponding to the second instruction to the panel module 130 and the backlight module 140 based on the first instruction and the second instruction.

[0067] Next, the panel module 130 can adjust the gamma voltages of the first region and the second region of the image displayed by the panel module 130 according to the gamma curves stored in the first lookup table (e.g., the gamma curves generated by Mode 2, Mode 2 + Mode 4, Mode 2 + Mode 5, or Mode 6) and the gamma curves stored in the second lookup table (e.g., the normal gamma curve). In this embodiment, the first region of the image corresponds to the brightness region of the ambient light sensor 150 in the first direction, and the second region of the image corresponds to the brightness region of the ambient light sensor 150 in the second direction.

[0068] Furthermore, the backlight module 140 can adjust the backlight brightness of the first zone and the backlight brightness of the second zone of the panel light source provided by the backlight module 140 based on the brightness data stored in the first lookup table (e.g., 110% to 130% of the power-on brightness) and the brightness data stored in the second lookup table (e.g., 100% of the power-on brightness). In this embodiment, the first zone of the panel light source corresponds to the first directional brightness zone of the ambient light sensor 150 and the first zone of the image, and the second zone of the panel light source corresponds to the second directional brightness zone of the ambient light sensor 150 and the second zone of the image.

[0069] In this way, under light intensities in different directions (e.g., the first direction and the second direction), in addition to adjusting the backlight brightness of different areas (e.g., the first area and the second area) of the panel light source provided by the backlight module 140, the gamma voltage of different areas (e.g., the first area and the second area) of the image displayed by the panel module 130 is also changed, so that low grayscale image details can be clearly presented or the image display effect can be improved.

[0070] Figure 4 This is a flow chart of a display method according to one embodiment of the present disclosure. The display method of this embodiment is applicable to Figure 1 Display device 100 or Figure 3 The display device 300 includes a display device 100 or a display device 300, wherein the display device 100 or the display device 300 can have multiple image modes and is electrically connected to a control module. In step S402, an ambient light sensor of the display device provides an ambient light brightness signal to the control module. In step S404, the control module determines, based on the ambient light brightness signal, whether the ambient light brightness signal corresponds to an image mode, and provides an instruction corresponding to the image mode to a timing controller of a display of the display device.

[0071] In step S406, the timing controller provides one of multiple lookup tables corresponding to the instruction to the panel module and backlight module of the display according to the instruction, wherein each lookup table corresponds to one of the image modes and each lookup table stores gamma curves and brightness data. In step S408, the panel module adjusts the gamma voltage of the image displayed on the display panel according to the gamma curve stored in the lookup table. In step S410, the backlight module adjusts the backlight brightness of the panel light source provided by the backlight module according to the brightness data stored in the lookup table.

[0072] In some embodiments, when the ambient light brightness corresponding to the ambient light brightness signal is lower than a first threshold, the display device has a first image mode. In some embodiments, when the ambient light brightness corresponding to the ambient light brightness signal is between a first threshold and a second threshold, the display device has a second image mode, wherein the second threshold is greater than the first threshold. In some embodiments, when the ambient light brightness corresponding to the ambient light brightness signal is greater than or equal to a third threshold, the display device has a third image mode, wherein the third threshold is greater than the second threshold.

[0073] In some embodiments, step S404 may include, through the control module, determining, based on the first-direction brightness and the second-direction brightness of the ambient light brightness signal, a fifth image mode corresponding to the first-direction brightness and a sixth image mode corresponding to the second-direction brightness, and providing a first instruction for the fifth image mode and a second instruction for the sixth image mode to the timing controller. Step S406 may include, through the timing controller, providing, based on the first instruction and the second instruction, a first lookup table corresponding to the first instruction and a second lookup table corresponding to the second instruction to the panel module and the backlight module.

[0074] Step S408 may include adjusting, via the panel module, the gamma voltage of the first region and the gamma voltage of the second region of the image according to the gamma curve stored in the first lookup table and the gamma curve stored in the second lookup table. Step S410 may include adjusting, via the backlight module, the backlight brightness of the first region and the backlight brightness of the second region of the panel light source according to the brightness data stored in the first lookup table and the brightness data stored in the second lookup table.

[0075] In summary, the display device and display method of the embodiments of the present disclosure provide an ambient light brightness signal to the control module through the ambient light sensor of the display. The control module determines that the ambient light brightness signal corresponds to one of the image modes based on the ambient light brightness signal, and provides an instruction corresponding to the one of the image modes to the timing controller of the display. The timing controller provides one of the multiple lookup tables corresponding to the instruction to the panel module and backlight module of the display based on the instruction, wherein each lookup table corresponds to one of the image modes, and each lookup table stores a gamma curve and brightness data. The panel module adjusts the gamma voltage of the image displayed by the display panel based on the gamma curve stored in the one of the lookup tables. The backlight module adjusts the backlight brightness of the panel light source provided by the backlight module based on the brightness data stored in the one of the lookup tables. In this way, low-grayscale image details can be clearly presented or the image display effect can be improved under different light intensities.

[0076] In addition, the ambient light brightness signal provided by the ambient light sensor may further include first direction brightness and second direction brightness, so that the control module determines the fifth image mode and the sixth image mode based on the first direction brightness and the second direction brightness and provides the first instruction and the second instruction corresponding to the fifth image mode and the sixth image mode to the timing controller. The timing controller may provide a first lookup table and a second lookup table of the first instruction and the second instruction to the panel module and the backlight module. The panel module adjusts the gamma voltage of the first area and the gamma voltage of the second area of the image according to the gamma curve stored in the first lookup table and the second lookup table, and the backlight module adjusts the backlight brightness of the first area and the backlight brightness of the second area of the panel light source according to the brightness information stored in the first lookup table and the second lookup table. In this way, low-grayscale image details in different areas can be clearly presented or the image display effect can be improved under light intensities in different directions.

[0077] Although the present disclosure is disclosed above through embodiments, it is not intended to limit the scope of the present disclosure. Anyone with ordinary knowledge in the technical field can replace, reorganize, mix, or make slight adjustments, combinations, changes, and modifications to the features of several different embodiments to complete other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the scope of the attached patent application.

Claims

1. A display device having multiple image modes and electrically connected to a control module, characterized in that: The display device includes: A display comprising: A timing controller storing a plurality of lookup tables, wherein each of the lookup tables corresponds to one of the image modes and each of the lookup tables stores a gamma curve and brightness data; a panel module electrically connected to the timing controller and used to display an image; and a backlight module electrically connected to the timing controller and used to provide a panel light source; and an ambient light sensor electrically connected to the display, sensing an ambient light brightness and providing an ambient light brightness signal to the control module; Among them, the control module determines that the ambient light brightness signal corresponds to one of the image modes based on the ambient light brightness signal, and provides an instruction corresponding to the one of the image modes to the timing controller. The timing controller provides one of the lookup tables corresponding to the instruction to the panel module and the backlight module based on the instruction. The panel module adjusts a gamma voltage of the image according to the gamma curve stored in the one of the lookup tables, and the backlight module adjusts a backlight brightness of the panel light source according to the brightness data stored in the one of the lookup tables.

2. The display device according to claim 1, wherein: When the ambient light brightness is lower than a first threshold, the display device has a first image mode.

3. The display device according to claim 2, wherein: When the ambient light brightness is between the first threshold and a second threshold, the display device has a second image mode, wherein the second threshold is greater than the first threshold.

4. The display device according to claim 3, wherein: When the ambient light brightness is higher than or equal to a third threshold, the display device has a third image mode, wherein the third threshold is greater than the second threshold.

5. The display device according to claim 1, wherein: The control module also determines a fourth image mode corresponding to the first direction brightness and a fifth image mode corresponding to the second direction brightness based on a first direction brightness and a second direction brightness of the ambient light brightness signal, and provides a first instruction for the fourth image mode and a second instruction for the fifth image mode to the timing controller. The timing controller provides a first lookup table corresponding to the first instruction and a second lookup table corresponding to the second instruction to the panel module and the backlight module based on the first instruction and the second instruction. The panel module adjusts the gamma voltage of a first area and the gamma voltage of a second area of the image according to the gamma curve stored in the first lookup table and the gamma curve stored in the second lookup table, and the backlight module adjusts the backlight brightness of a first area and the backlight brightness of a second area of the panel light source according to the brightness data stored in the first lookup table and the brightness data stored in the second lookup table.

6. A display method, applicable to a display device, wherein the display device has multiple image modes and is electrically connected to a control module, characterized in that: The display method includes: sensing an ambient light brightness by an ambient light sensor of the display device, and providing an ambient light brightness signal to the control module according to the ambient light brightness; By means of the control module, according to the ambient light brightness signal, it is determined that the ambient light brightness signal corresponds to one of the image modes, and an instruction corresponding to the one of the image modes is provided to a timing controller of a display of the display device; Providing, by the timing controller, one of a plurality of lookup tables corresponding to the instruction to a panel module and a backlight module of the display according to the instruction, wherein each of the lookup tables corresponds to one of the image modes and each of the lookup tables stores a gamma curve and brightness data; adjusting, by the panel module, a gamma voltage of an image displayed by the display panel according to the gamma curve stored in the one of the lookup tables; and The backlight module is used to adjust a backlight brightness of a panel light source provided by the backlight module according to the brightness data stored in one of the lookup tables.

7. The display method according to claim 6, wherein: When the ambient light brightness is lower than a first threshold, the display device has a first image mode.

8. The display method according to claim 7, wherein: When the ambient light brightness is between the first threshold and a second threshold, the display device has a second image mode, wherein the second threshold is greater than the first threshold.

9. The display method according to claim 8, wherein: When the ambient light brightness is higher than or equal to a third threshold, the display device has a third image mode, wherein the third threshold is greater than the second threshold.

10. The display method according to claim 6, wherein: The control module determines, based on the ambient light brightness signal, that the ambient light brightness signal corresponds to one of the image modes, and provides the instruction corresponding to the one of the image modes to the timing controller of the display, including: The control module determines, based on a first direction brightness and a second direction brightness of the ambient light brightness signal, a fourth image mode corresponding to the first direction brightness and a fifth image mode corresponding to the second direction brightness, and provides a first instruction for the fourth image mode and a second instruction for the fifth image mode to the timing controller; The step of providing, by the timing controller, one of the lookup tables corresponding to the instruction to the panel module and the backlight module of the display according to the instruction includes: Providing, by the timing controller, a first lookup table corresponding to the first instruction and a second lookup table corresponding to the second instruction to the panel module and the backlight module according to the first instruction and the second instruction; The step of adjusting the gamma voltage of the image displayed by the display panel according to the gamma curve stored in one of the lookup tables by the panel module includes: Adjusting the gamma voltage of a first region and the gamma voltage of a second region of the image according to the gamma curve stored in the first lookup table and the gamma curve stored in the second lookup table by the panel module; The step of adjusting the backlight brightness of the panel light source provided by the backlight module according to the brightness data stored in one of the lookup tables includes: The backlight module adjusts the backlight brightness of a first area and the backlight brightness of a second area of the panel light source according to the brightness data stored in the first lookup table and the brightness data stored in the second lookup table.

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