Color correction method, system and device for display

Abstract

The present disclosure provides a color correction method, system and device for a display. The color correction method for the display comprises: obtaining, by a processor, center measurement data of a center of a correction image displayed by a panel of the display; obtaining, by a color sensor of the color correction device, edge measurement data of an edge of the correction image displayed by the panel; determining, by the processor, a color correction algorithm based on the center measurement data and the edge measurement data; and performing, by the processor, color correction on the panel based on the color correction algorithm. The color correction method, system and device for the display provided by the present disclosure allow the display to achieve better color performance.

Description

Technical Field

[0001] This invention relates to a color calibration method for a display, and more particularly to a color calibration method, system, and apparatus for a display. Background Technology

[0002] Monitors play an indispensable role in modern life. For example, users can quickly access information, watch videos and entertainment, and perform work and study through screens. However, if a monitor's colors are inaccurate, it will seriously affect our visual experience and even lead to errors in professional work. Accurate color reproduction is especially important in fields such as image editing, design, and medical diagnosis, ensuring that images display true and consistent colors, avoiding misinterpretations or distortions. Therefore, a monitor with excellent color performance not only improves our quality of life but also ensures the accuracy of professional work.

[0003] The "Background Art" paragraph is only used to help understand the content of this invention. Therefore, the content disclosed in the "Background Art" paragraph may include some known technologies that are not known to those skilled in the art. The content disclosed in the "Background Art" paragraph does not mean that the content or the problems to be solved by one or more embodiments of this invention were known or recognized by those skilled in the art prior to this application. Summary of the Invention

[0004] This invention provides a color calibration method, system, and device for a display, so as to enable the display to achieve better color performance.

[0005] This disclosure provides an embodiment of a color calibration method for a display. The color calibration method for a display includes: acquiring center measurement data of the center of a calibration image displayed on the display panel via a processor; acquiring edge measurement data of the edges of the calibration image displayed on the panel via a color calibration device sensor; determining a color calibration algorithm based on the center measurement data and the edge measurement data via a processor; and performing color calibration on the panel based on the color calibration algorithm via a processor.

[0006] This disclosure provides an embodiment of a color calibration system for a display. The color calibration system includes a display and a color calibration apparatus. The display includes a panel configured to display a calibration image. The color calibration apparatus includes a color sensor configured to acquire edge measurement data of the edges of the calibration image displayed on the panel. The display or color calibration apparatus includes at least one processor. Furthermore, the at least one processor is configured to: acquire center measurement data of the center of the display panel; determine a color calibration algorithm based on the center measurement data and the edge measurement data; and perform color calibration on the panel based on the color calibration algorithm.

[0007] This disclosure provides a color correction device according to one embodiment. The color correction device includes a circuit board, a color sensor, and a device input / output interface. The circuit board has opposing first and second ends. The color sensor is disposed on a side of the circuit board adjacent to the first end. The device input / output interface is disposed on a side of the circuit board adjacent to the second end. The device input / output interface includes an extension and a connecting portion. The extension is disposed on a side of the circuit board and extends in a direction away from the side. One end of the connecting portion is connected to the extension, and the other end extends toward the color sensor.

[0008] Based on the above, color calibration methods, systems, and devices can enable displays to achieve better color performance, thereby enhancing the user experience.

[0009] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0010] To make the foregoing easier to understand, several embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1A This is a schematic diagram of a color correction scenario according to an embodiment of the present invention.

[0012] Figure 1B This is a schematic diagram of a color correction scenario according to an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of a color correction device according to an embodiment of the present invention.

[0014] Figure 3A This is a schematic diagram of a color correction system according to an embodiment of the present invention.

[0015] Figure 3BThis is a schematic diagram of a color correction system according to an embodiment of the present invention.

[0016] Figure 4A This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0017] Figure 4B This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0018] Figure 4C This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0019] Figure 4D This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0020] Figure 4E This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of a color correction method according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100A, 100B: Color Correction Scenarios

[0024] 100A-1, 100B-1, 200-1: First View

[0025] 100A-2, 100B-2, 200-2: Second View

[0026] 100A-3, 200-3: Third View

[0027] 110, 310: Monitor

[0028] 110IF: Display Input / Output Interface

[0029] 112, 312: Panel

[0030] 120, 320: Color correction device

[0031] 120IF, 230: Device input / output interface

[0032] 200: Color Correction Device

[0033] 200-4: Fourth View

[0034] 210: Circuit board

[0035] 210B: Bottom surface

[0036] 220, 322: Color sensor

[0037] 222: Protective layer

[0038] 224: Buffer layer

[0039] 232: Extension

[0040] 234: Connecting part

[0041] 240, 324: Indicator lights

[0042] 290: Casing

[0043] 292: Sensing aperture

[0044] 300A, 300B: Color Correction System

[0045] 330: Computer device

[0046] 312D: Driver

[0047] 314: Scaler

[0048] 314M, 322M, 390M: Memory

[0049] 316, 326: Power Units

[0050] 318: Hub

[0051] 330: Computer device

[0052] 332: Image Processing Unit

[0053] 390: Processor

[0054] 400A, 400B, 400C, 400D, 400E, 500: Color Correction Methods

[0055] D1: First Direction

[0056] D2: Second Direction

[0057] D3: Third direction

[0058] E1: First end

[0059] E2: Second end

[0060] ITF: Input / Output Interface

[0061] S410A, S410B, S410C, S410D, S410E, S420A, S420B, S420C, S420D, S420E, S430A, S430B, S430C, S430D, S430E, S440A, S440B, S440C, S440D, S440E, S450A, S450B, S450C, S450D, S450E, S460A, S460B, S460C, S460D, S470A, S470B, S470C, S470D, S480A, S510, S520, S530, S540: Steps

[0062] STD: Standard colorimeter. Detailed Implementation

[0063] The foregoing descriptions and other technical contents, features, and effects of this invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms used in the following embodiments, such as up, down, left, right, front, or back, are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0064] The following description will refer to embodiments of the invention illustrated in the accompanying drawings to aid the reader in fully understanding the methods, apparatus, and / or systems described herein. Therefore, those skilled in the art may suggest various changes, modifications, or equivalent substitutions to the systems, apparatus, and / or methods described herein. Furthermore, for clarity and conciseness, descriptions of well-known functions and constructions may be omitted. In addition, where possible, the same reference numerals are used in the drawings and description to refer to the same or similar parts.

[0065] To achieve superior color performance, some monitors incorporate a dedicated color calibration module. This module allows the monitor to perform color calibration in real-time, ensuring optimal display quality. However, such modules can only calibrate the color of a single, fixed monitor and cannot calibrate other monitors. Furthermore, these modules are typically quite large, making them unsuitable for use in or integrated with thin, portable flat panel displays or tablet computers.

[0066] On the other hand, some color calibration modules can be attached to any monitor and perform color calibration. However, these modules can only sample the center of the monitor panel for calibration. This means that the installation of such modules is limited and less convenient. Furthermore, the calibration parameters are stored on the computer's operating system after calibration. In other words, a color-calibrated monitor will only show its color calibration effect when used on a computer with the stored calibration parameters. Conversely, when this calibrated monitor is moved to another computer, it must be recalibrated for the new computer.

[0067] In this disclosure, the color calibration device can be used on any computer and only needs to be placed at the edge of the monitor to perform color calibration. That is, the color calibration device can be applied to or used with thin and portable flat panel displays or portable tablet computers. Furthermore, after color calibration, the device can store the calibration parameters in its own memory or the monitor's memory. In other words, a color-calibrated monitor can be used on any computer and will display the calibrated image. In this way, the color calibration device allows the monitor to achieve better color performance, thereby improving the user experience.

[0068] Figure 1A This is a schematic diagram of a color correction scenario according to an embodiment of the present invention. (Refer to...) Figure 1A The color correction scenario 100A includes a first view 100A-1, a second view 100A-2, and a third view 100A-3. In one embodiment, the first view 100A-1, the second view 100A-2, and the third view 100A-3 are a formal view, a top view, and a side view, respectively, but this disclosure is not limited thereto.

[0069] In one embodiment, color calibration scenario 100A includes a display 110 and a color calibration device 120. The display 110 includes a panel (also referred to as a display panel) 112, and the color calibration device 120 includes a color sensor (not shown). Furthermore, as shown in the first view 100A-1, the second view 100A-2, and the third view 100A-3, the color calibration device 120 can be positioned at the edge of the display 110 to calibrate the display 110.

[0070] Figure 1B This is a schematic diagram of a color correction scenario according to an embodiment of the present invention. (Refer to...) Figure 1B Color correction scenario 100B includes a first view 100B-1 and a second view 100B-2.

[0071] In the first view 100B-1, the panel 112 of the display 110 can display a calibration image. Furthermore, the color calibration device 120 can be positioned at the edge of the display 110 to calibrate it. And, as shown in the second view 100B-2, the hardware structure of the color calibration device 120 allows it to be positioned at the edge of the display 110. Specifically, the device input / output interface 120IF of the color calibration device 120 can be connected to the display input / output interface 110IF of the display 110, thereby fixing the color calibration device 120 at the edge of the display 110. With this configuration, the color sensor of the color calibration device 120 can face the panel 112 of the display 110 to obtain the measurement values ​​required for color calibration (e.g., color coordinate values ​​(coordinate values ​​of a color in a color space), brightness, etc.).

[0072] Figure 2 This is a schematic diagram of a color correction device according to an embodiment of the present invention. Refer to 1A. Figure 1B as well as Figure 2 Color correction device 200 is Figure 1A as well as Figure 1B This is one embodiment of the color correction device 120, but the present disclosure is not limited thereto. Furthermore, the color correction device 200 may be presented as a first view 200-1, a second view 200-2, a third view 200-3, and a fourth view 200-4. In one embodiment, the first view 200-1, the second view 200-2, the third view 200-3, and the fourth view 200-4 may be a top view, a bottom view, a first side view (e.g., a side view in the first direction D1), and a second side view (e.g., a side view in the second direction D2), respectively, but the present disclosure is not limited thereto.

[0073] It should be noted that in the following explanation, Figure 2 The directions described are based on the second view 200-2 (i.e., the bottom view). Specifically, the first direction D1 is along the long side of the color correction device 200, the second direction D2 is along the short side of the color correction device 200, and the third direction D3 is along the thickness of the color correction device 200. Furthermore, the first view 200-1 presents the top surface of the color correction device, and the second view 200-2 presents the bottom surface of the color correction device. However, this disclosure is not limited to these.

[0074] In one embodiment, the color correction device 200 may include a circuit board 210, a color sensor 220, a device input / output interface 230, an indicator light 240, and a housing 290. The circuit board 210 may have opposing first end E1 and second end E2. The first end E1 may be located on the color correction device 200 in the opposite direction to the first direction D1, and the second end E2 may be located on the color correction device 200 in the same direction as the first direction D1. Furthermore, the color sensor 220 may be disposed on a side of the circuit board 210 adjacent to the first end E1 (e.g., the bottom surface 210B). On the other hand, the device input / output interface 230 may be disposed on the side of the circuit board 210 adjacent to the second end E2.

[0075] Furthermore, the device input / output interface 230 may include an extension 232 and a connecting portion 234. The extension 232 may be disposed on the side of the circuit board and extend in a direction away from the side. One end of the connecting portion 234 may be connected to the extension 232, and the other end of the connecting portion 234 may extend towards the color sensor 220 (i.e., in the opposite direction of the first direction). In other words, the color correction device 200 can be detachably connected to the edge of the display 110 via the device input / output interface 230. Specifically, the device input / output interface 230 of the color correction device 200 can be detachably connected to a display input / output interface adjacent to the edge of the display 110, for example, the display input / output interface is located on the side of the display 110 adjacent to the edge or on the bezel of the display 110 adjacent to the edge. In such a configuration, as... Figure 1A as well as Figure 1B As shown, the color correction device 200 can be positioned at the edge of the display 110 to obtain the measurement values ​​required for color correction.

[0076] In other words, when the color sensing device 200 is connected to the display 110, the device input / output interface 230 allows the color sensor 220 to be positioned on the front of the display 110, so that the color sensor 220 faces the panel 112 of the display 110. Simultaneously, the connection portion 234 of the device input / output interface 230 is located on the side of the display 110. That is, when the color sensing device 200 is connected to the display 110, the color sensor 220 and the connection portion 234 of the device input / output interface 230 can be located on the front and side of the display 110 respectively, so as to be securely mounted at the edge of the display 110.

[0077] In one embodiment, the circuit board 210 can be an electronic circuit component carrier board made of any material, such as epoxy glass cloth substrate (FR4), glass, flexible printed circuit board (FPC), aluminum plate, copper plate or other similar components.

[0078] In one embodiment, the color sensor 220 can be any light source color sensor that can convert light energy into electrical energy and output it in the form of digital data, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD), etc., and this disclosure is not limited thereto.

[0079] In one embodiment, the device input / output interface 230 can be any input / output interface used to connect to the display 110 to transmit power and control signals and data, such as Universal Serial Bus Interface (USB), High Resolution Multimedia Interface (HDMI), DisplayPort Interface (DP), Lightning Interface, Ethernet Interface (RJ45), Integrated Circuit Bus Interface (I2C), Serial Peripheral Interface (SPI), Universal Asynchronous Receiver / Transmitter Interface (UART), Bluetooth Wireless Interface, Wireless Network Interface, or other similar elements.

[0080] In one embodiment, the indicator light 240 can use different colors to represent various operating states of the color correction device 200. Furthermore, the indicator light 240 can be a component of any light-emitting technology, such as a light-emitting diode (LED), a mini LED, a micro LED, or other similar components.

[0081] In one embodiment, the housing 290 may surround the circuit board 210. The housing 290 may be any formable material, such as plastic, aluminum, aluminum-magnesium alloys, or other similar components. The housing 290 may include a sensing aperture 292. The sensing aperture 292 may be located at a first end of the housing 290 and may be aligned with the center of the color sensor 220. That is, the color sensor 220 may sense external light sources via the sensing aperture 292.

[0082] Additionally, the color sensor 220 may be provided with a protective layer 222 and a buffer layer 224. The protective layer 222 protects the color sensor 220 and prevents water and dust from entering the interior of the color calibration device 200. Furthermore, the protective layer 222 can be any material that allows light waves to pass through, such as glass, polymethyl methacrylate (PMMA), or other similar components. The buffer layer 224 prevents ambient light from incident on the color sensor 220, thereby affecting the color calibration results. On the other hand, the buffer layer 224 protects the surface of the display 110, thereby preventing the color calibration device 200 from impacting or scratching the surface of the display 110. Furthermore, the buffer layer 224 can be any material that can shield light and mitigate impact, such as rubber, plastic, or other similar components.

[0083] Figure 3A This is a schematic diagram of a color correction system according to an embodiment of the present invention. Refer to 1A to... Figure 3A The color correction system 300A includes a display 310, a color correction device 320, and a computer device 330. The display 310 is... Figure 1A as well as Figure 1B This is one embodiment of the display 110, but the present disclosure is not limited thereto. Furthermore, the color correction device 320 is... Figure 1A as well as Figure 1B Color correction device 120 or Figure 2 This is one embodiment of the color correction device 200, but the present disclosure is not limited thereto.

[0084] It should be noted that the display 310 may include a panel 312, a driver 312D, a scaler (also known as an image processing unit) 314, a memory 314M, a power unit 316, and a hub 318. Furthermore, the color calibration device 320 may include a color sensor 322, a memory 322M, an indicator light 324, a power unit 326, and a processor 390. Additionally, the display 310 and the color calibration device 320 can be interconnected using their respective input / output interfaces (ITFs) (e.g., display input / output interface and device input / output interface 230). Incidentally, Figure 3A The USB shown is merely one example of an Input / Output Interface (ITF). In practice, the ITF can employ various interfaces such as the aforementioned device input / output interface 230, and this disclosure is not limiting. Similarly, the display 310 and the computer device can be connected via a connection interface, and related details are not elaborated here. Furthermore, Figure 3A The use of I2C between the processor 390 and the color sensor 322 or memory 322M is also an exemplary embodiment, and this disclosure is not limited thereto.

[0085] In one embodiment, the display 310 may be a display unit of any display technology, such as a tablet computer, flat panel display, television, monitor, medical display, endpoint service system (POS) or other similar element.

[0086] In one embodiment, panel 312 can be a display panel of any display technology, such as LCD, OLED, Mini LED, Micro LED, or other similar elements. In one embodiment, driver 312D can be a panel driver known to those skilled in the art for driving panel 312.

[0087] In one embodiment, the scaler 314 is an image processing unit that converts video signals from one display resolution to another. Furthermore, the scaler 314 supports multiple image input signals and supports control, color management, brightness adjustment, etc., of various display panels. In one embodiment, the memory 314 can be used to store relevant data required by the scaler 314 during image processing, and the memory 314 can employ various types of storage devices well known to those skilled in the art, such as random access memory.

[0088] In one embodiment, the power unit 316 can be used to provide a power source for the various components of the display 310, and the power unit 316 can be implemented in a manner well known to those skilled in the art.

[0089] In one embodiment, hub 318 may be configured to aggregate multiple signal lines from scaler 314, input / output interface (IFT), and connection interface to enable signal transmission between the components connected to these signal lines.

[0090] In one embodiment, the memory 322M can be used to store the measurement values ​​and parameter values ​​measured by the color sensor 322, and the memory 322M can be any type of storage device known to those skilled in the art. Furthermore, the memory 322M can store the results of various operations performed by the processor 390.

[0091] In one embodiment, the indicator light 324 may use different colors to represent various operating states of the color correction device 200, and reference may be made to the description of the indicator light 240.

[0092] In one embodiment, the power unit 326 may be used to provide a power source for the various components of the color correction device 320, and the power unit 326 may be implemented in a manner well known to those skilled in the art.

[0093] In one embodiment, the processor 390 may be a microcontroller unit (MCU) or an Advanced Reduced Instruction Set Machine (ARM). That is, the processor 390 is a microcomputer that integrates a central processing unit, memory, timer / counter, and various input / output interfaces onto a single integrated circuit chip.

[0094] It is worth mentioning that, during color calibration, the processor 390 can be configured to display a calibration image on the panel 310. Furthermore, the color sensor 320 can be configured to be positioned at the edge of the display 310, and the color sensor 320 can be configured to acquire edge measurement data of the edge of the calibration image displayed on the panel 312 of the display 310. In one embodiment, the edge measurement data may include the color coordinate values ​​(coordinate values ​​of a specific color in a color space), brightness, and saturation of the edge of the calibration image, but this disclosure is not limited to this.

[0095] Incidentally, the center position of the panel 312 of the display 310 can be obtained in advance by using a reliable and industry-standard standard colorimeter (not shown) to acquire center measurement data of the center of the calibration image displayed on the panel 312, and the center measurement data can be stored in advance in memory 314M or memory 322M. That is, the center measurement data is obtained based on the calibration image and via a standard colorimeter. Furthermore, the processor 390 can be configured to acquire the center measurement data of the center of the panel 312 of the display 310 from memory 314M or memory 322M. In one embodiment, the center measurement data may include the color coordinate values ​​of the center of the calibration image (coordinate values ​​of a specific color in a color space), brightness, and saturation, etc., but this disclosure is not limited to this.

[0096] Next, the processor 390 can be configured to determine a color correction algorithm based on center measurement data and edge measurement data. In one embodiment, the color correction algorithm can be configured to determine the panel characteristics (i.e., center measurement data) of the center of the panel 312 based on the panel characteristics (i.e., edge measurement data) of the edges of the panel 312. Then, the processor 390 can be configured to perform color correction on the panel 312 of the display 310 based on the color correction algorithm. In addition, the color correction data calculated by color correction can be stored in memory 314M or memory 322M. And the display 310 can display based on the color correction data.

[0097] In this way, by placing the color calibration device 320 at the edge of the display 310, the color calibration effect of placing the color calibration device 320 at the center of the display 310 can be achieved. Furthermore, when the color calibration data is stored in the memory 314M of the display 310, the display 310 can be paired with any computer device 330 to obtain a color-calibrated display effect. Therefore, the color calibration device 320 enables the display 310 to achieve better color performance, thereby improving the user experience.

[0098] Figure 3B This is a schematic diagram of a color correction system according to an embodiment of the present invention. (Refer to...) Figure 3A as well as Figure 3B The color correction system 300B is Figure 3A Another implementation of the color correction system 300A. The difference between the color correction system 300B and the color correction system 300A is that the processor 390 of the color correction system 300A is located in the color correction device 320, while the processor 390 of the color correction system 300B is located in the display 310. That is, in both the color correction system 300B and the color correction system 300A, the display 310 or the color correction device 320 includes at least one processor. In addition, the display 310 may also include a memory 390M, and the memory 390M can store the calculation results (e.g., color correction algorithms, color correction data) of various operations performed by the processor 390.

[0099] In other words, the color calibration calculations can be performed by the processor 390 within the display 310. This means the color calibration device 320 does not require additional space to house the processor 390, thus reducing its size. Furthermore, the smaller size of the color calibration device 320 increases portability and allows it to be used in or integrated with thin and portable flat panel displays or portable tablet computers. As a result, the color calibration device 320 enables the display 310 to achieve better color performance, thereby enhancing the user experience.

[0100] Figure 4A This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figures 3A to 4A Color calibration method 400A is an implementation of color calibration of display 310 by color calibration system 300A or color calibration system 300B. It should be noted that color calibration method 400A may, for example, determine the relationship between color calibration device 320 and standard colorimeter STD before the display 310 leaves the factory (i.e., determine the color calibration algorithm in advance), thereby calibrating the brightness and color accuracy of color calibration device 320.

[0101] In the pre-processing stage, a standard and reliable colorimeter (STD) can be selected and placed at the center of the panel 312 of the display 310. Next, the color calibration device 320 can be placed at the edge of the display 310 and detachably connected to the display 310.

[0102] Then, in the color correction stage, in step S410A, the operating system of the computer device 330 can run the color correction software of the color correction device 320 to control the image processing unit (GPU) 332 of the computer device 330. Furthermore, in step S420A, the image processing unit 332 can output the correction image to the scaler 314 at an appropriate time according to the requirements of the color correction software. Next, in step S430A, the scaler 314 outputs image signals of the image resolution and brightness / color of the correction image to the panel 312 at an appropriate time, and displays the correction image to be measured and color corrected at an appropriate position on the panel 312 of the display 310.

[0103] In steps S440A and S450A, the center and edge positions of the calibration image displayed on the panel 312 are measured by the standard colorimeter STD and the color sensor 322 of the color correction device 320, respectively, to obtain center measurement data and edge measurement data. Furthermore, in step S460A, the computer device 330 performs analysis and calculations based on the center and edge measurement data to determine the relationship between the color correction device 320 and the standard colorimeter STD (i.e., the color correction algorithm).

[0104] Then, in step S470A, the computer device 330 can transmit the correction and compensation data required by the color correction device 320 to the color correction device 320 to perform brightness and color accuracy correction on the color correction device 320. Furthermore, in step S480A, the processor 390 in the display 310 or the color correction device 320 can store the color correction algorithm in the memory 390M. It should be noted that when the processor 390 is in the color correction device, the aforementioned color correction algorithm can be stored in the memory 322M. However, this disclosure is not limited to this. Additionally, Figures 4B to 4E The memory 390M can also be interpreted as memory 390M or memory 322M, and will not be elaborated further below.

[0105] In this way, the color calibration algorithm can be stored in the memory 390M or memory 322M before the monitor 310 leaves the factory. Furthermore, after the monitor 310 leaves the factory, the user can use the color calibration device 320 to perform color calibration on the monitor 310 based on the color calibration algorithm stored in the memory 390M or memory 322M. Therefore, the color calibration device 320 can enable the monitor 310 to achieve better color performance, thereby improving the user experience.

[0106] Figure 4B This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figure 3A , Figure 3B as well as Figure 4B Color calibration method 400B is an implementation of color calibration of display 310 by color calibration system 300A or color calibration system 300B. It should be noted that color calibration method 400B may, for example, involve measuring the center measurement data of the center of the panel 312 of display 310 using a standard colorimeter (STD) before the display 310 leaves the factory, for subsequent determination of the color calibration algorithm.

[0107] During the preparatory work phase, a standard and credible colorimeter STD can be selected and placed in the center of the panel 312 of the display 310.

[0108] Then, in the color correction stage, in step S410B, the operating system of the computer device 330 can run the color correction software of the color correction device 320 to control the image processing unit 332 of the computer device 330. Furthermore, in step S420B, the image processing unit 332 can output the correction image to the scaler 314 at an appropriate time according to the requirements of the color correction software. Next, in step S430B, the scaler 314 outputs image signals of the image resolution and brightness / color of the correction image to the panel 312 at an appropriate time, and displays the correction image to be measured and color corrected at an appropriate position on the panel 312 of the display 310.

[0109] In step S440B, the center position of the calibration image displayed on panel 312 can be measured via a standard colorimeter (STD) to obtain center measurement data. Then, in step S450B, computer device 330 obtains the center measurement data from the standard colorimeter (STD). Next, in step S460B, computer device 330 provides the center measurement data to processor 390 in display 310 or color calibration device 320. Then, in step S470B, processor 390 in display 310 or color calibration device 320 stores the center measurement data in memory 390M or memory 322M.

[0110] In this way, the center measurement data of the panel 312 of the display 310 can be stored in the memory 390M or memory 322M before the display 310 leaves the factory. After the display 310 leaves the factory, the color calibration software can retrieve the center measurement data from the memory 390M or memory 322M via the processor 390. Furthermore, the color calibration software can obtain the edge measurement data of the panel 312 of the display 310 via the color calibration device 320. Then, the color calibration software can determine a color calibration algorithm based on the center and edge measurement data. Then, the user can use the color calibration algorithm stored in the memory 390M or memory 322M to perform color calibration on the display 310 via the color calibration device 320. Therefore, the color calibration device 320 allows the display 310 to achieve better color performance, thereby improving the user experience.

[0111] Figure 4C This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figure 3A , Figure 3B as well as Figure 4C Color calibration method 400C is an implementation of color calibration of display 310 by color calibration system 300A or color calibration system 300B. It should be noted that color calibration method 400C can, for example, be performed after display 310 has left the factory, based on pre-obtained center measurement data and edge measurement data obtained via color calibration device 320, to determine a color calibration algorithm, thereby correcting the brightness and color accuracy of color calibration device 320.

[0112] During the pre-processing stage, the color calibration device 320 can be placed at the edge of the display 310 and can be detachably connected to the display 310.

[0113] Then, in the color correction stage, in step S410C, the operating system of the computer device 330 can run the color correction software of the color correction device 320 to control the image processing unit 332 of the computer device 330. Furthermore, in step S420C, the image processing unit 332 can output the correction image to the scaler 314 at an appropriate time according to the requirements of the color correction software. Next, in step S430C, the scaler 314 outputs image signals of the image resolution and brightness / color of the correction image to the panel 312 at an appropriate time, and displays the correction image to be measured and color corrected at an appropriate position on the panel 312 of the display 310.

[0114] In step S440C, the edge position of the calibration image displayed on the panel 312 can be measured by the color sensor 322 of the color calibration device 320 to obtain edge measurement data. Then, in step S450C, the computer device 330 can obtain the edge measurement data from the color sensor 322. Furthermore, the computer device 330 can perform analysis and calculation based on the center measurement data and the edge measurement data to determine the color calibration algorithm. Then, in step S460C, the computer device 330 can provide the color calibration algorithm to the processor 390 in the display 310 or the color calibration device 320. Next, in step S470C, the processor 390 in the display 310 or the color calibration device 320 can store the color calibration algorithm in the memory 390M or the memory 322M.

[0115] In this way, after the display 310 leaves the factory, the color calibration software can obtain center measurement data from memory 390M or memory 322M. Furthermore, the color calibration software can obtain edge measurement data of the panel 312 of the display 310 via the color calibration device 320. Then, the color calibration software can determine a color calibration algorithm based on the center and edge measurement data. Then, the user can perform color calibration on the display 310 via processor 390 based on the color calibration algorithm stored in memory 390M or memory 322M. Therefore, the color calibration device 320 enables the display 310 to achieve better color performance, thereby improving the user experience.

[0116] Incidentally, based on pre-obtained center measurement data, users can perform color calibration on multiple monitors 310 of the same series using the color calibration device 320. In other words, for multiple monitors 310 of the same series, the user only needs to use one color calibration device 320, along with pre-obtained center measurement data from one of the monitors 310, to generate a color calibration algorithm for all monitors 310 in the same series. Based on this color calibration algorithm, color calibration can be performed on multiple monitors 310 of the same series, thereby improving the user experience.

[0117] Figure 4D This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figure 3A , Figure 3B as well as Figure 4DColor calibration method 400D is one implementation of color calibration of display 310 by color calibration system 300A or color calibration system 300B. It should be noted that color calibration method 400D can be, for example, performed on display 310 after it leaves the factory, in conjunction with computer device 330, based on pre-acquired central measurement data or pre-determined color calibration algorithm, via color calibration device 320 to perform color calibration on display 310.

[0118] During the pre-processing stage, the color calibration device 320 can be placed at the edge of the display 310 and can be detachably connected to the display 310.

[0119] Then, in the color correction stage, in step S410D, the operating system of the computer device 330 can run the color correction software of the color correction device 320 to control the image processing unit 332 of the computer device 330. Furthermore, in step S420D, the image processing unit 332 can output the correction image to the scaler 314 at an appropriate time according to the requirements of the color correction software. Next, in step S430D, the scaler 314 outputs image signals of the image resolution and brightness / color of the correction image to the panel 312 at an appropriate time, and displays the correction image to be measured and color corrected at an appropriate position on the panel 312 of the display 310.

[0120] In step S440D, the edge position of the calibration image displayed on the panel 312 can be measured by the color sensor 322 of the color calibration device 320 to obtain edge measurement data. Furthermore, in step S450D, the computer device 330 can perform color calibration on the display 310 based on the edge measurement data and the color calibration algorithm.

[0121] For example, the computer device 330 can calculate and analyze edge measurement data based on a color correction algorithm to determine whether the content displayed at the center position of the calibration image displayed on the panel 312 of the current display 310 (e.g., color coordinate values, brightness, saturation, etc.) reaches the target calibrated color. If the result is negative, the computer device 330 will repeat steps S410D to S450D to adjust the calibration image and obtain new edge measurement data until the content displayed at the center position of the calibration image reaches the target calibrated color. If the result is positive, it will proceed to step S460D.

[0122] In step S460D, the computer device 330 can provide the color correction data obtained from color correction to the processor 390 in the display 310 or the color correction device 320. Next, in step S470D, the processor 390 in the display 310 or the color correction device 320 can store the color correction data in the memory 390M or the memory 322M.

[0123] In this way, users can use the color calibration device 320 to calibrate the colors of the display 310 based on the color calibration algorithm stored in the memory 390M or memory 322M. Therefore, the color calibration device 320 can enable the display 310 to achieve better color performance, thereby improving the user experience.

[0124] Figure 4E This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figure 3A , Figure 3B as well as Figure 4E Color calibration method 400E is one implementation of color calibration of display 310 by color calibration system 300A or color calibration system 300B. It should be noted that color calibration method 400E may be, for example, after display 310 is manufactured, without the computer device 330, and color calibration of display 310 is performed solely by color calibration device 320 based on pre-acquired central measurement data or a pre-determined color calibration algorithm.

[0125] During the pre-processing stage, the color calibration device 320 can be placed at the edge of the monitor 310 and detachably connected to the monitor 310. Furthermore, the computer device 330 is not powered on or connected to the monitor 310. In other words, the color calibration of the color calibration method 400E is configured to be performed without the monitor 310 being electrically coupled to the computer device 330.

[0126] Then, in the color calibration stage, in step S410E, the processor 390 in the display 310 or the color calibration device 320 can run the color calibration software of the color calibration device 320 to control the scaler 314. Furthermore, in step S420E, according to the requirements of the color calibration software, the scaler 314 can output image signals of the image resolution and brightness / color of the calibration image to the panel 312 at an appropriate time, and display the calibration image to be measured and color calibrated at an appropriate position on the panel 312 of the display 310.

[0127] In step S430E, the edge position of the calibration image displayed on the panel 312 can be measured by the color sensor 322 of the color calibration device 320 to obtain edge measurement data. Furthermore, in step S440E, the processor 390 in the display 310 or the color calibration device 320 can perform color calibration on the display 310 based on the edge measurement data and the color calibration algorithm.

[0128] In step S440E, the processor 390 in the display 310 or color calibration device 320 calculates and analyzes the edge measurement data based on the color calibration algorithm to determine whether the color (e.g., including color coordinate values ​​and brightness) displayed at the center position of the calibration image displayed on the panel 312 of the current display 310 reaches the target calibrated color (e.g., including target calibrated color coordinate values ​​and target calibrated brightness). If the result is negative, the processor 390 in the display 310 or color calibration device 320 repeats steps S410E to S440E to adjust the calibration image and obtain new edge measurement data until the color displayed at the center position of the calibration image reaches the target calibrated color. If the result is positive, the process proceeds to step S450E.

[0129] In step S450E, the processor 390 in the display 310 or color calibration device 320 can store the color calibration data obtained by color calibration in the memory 390M or memory 322M.

[0130] In this way, without the need for a computer device 330, the user can calibrate the display 310's colors using only the color calibration device 320, based on the color calibration algorithm stored in the memory 390M or memory 322M. Therefore, the color calibration device 320 can enable the display 310 to achieve better color performance, thereby improving the user experience.

[0131] Figure 5 This is a schematic diagram of a color correction method according to an embodiment of the present invention. (Refer to...) Figure 3A , Figure 3B as well as Figure 5 The color correction method 500 includes steps S510 to S540.

[0132] In step S510, the processor 390 obtains center measurement data of the center of the calibration image displayed on the panel 312 of the display 310. In step S520, the color sensor 322 of the color correction device 320 obtains edge measurement data of the edges of the calibration image displayed on the panel 312. In step S530, the processor 390 determines a color correction algorithm based on the center measurement data and the edge measurement data. In step S540, the processor 390 performs color correction on the panel 312 based on the color correction algorithm.

[0133] Furthermore, the implementation details of color correction method 500 can be found in Figures 1 to 12. Figure 4E The description is provided to provide full teaching, advice and implementation examples, and these details will not be repeated here.

[0134] In summary, the color calibration method, system, and device for a display of the present invention can be used on any computer and only need to be placed at the edge of the display to perform color calibration. That is, the color calibration device can be applied to or used in thin and portable flat panel displays or portable tablet computers. Furthermore, after color calibration, the color calibration device can store the calibration parameters in its own memory or the display's memory. In other words, a color-calibrated display can be used on any computer and will always display a color-calibrated effect. In this way, the color calibration device allows the display to achieve better color performance, thereby improving the user experience.

[0135] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the invention are still within the scope of this patent. Furthermore, no embodiment or claim of the present invention needs to achieve all the objectives, advantages, or features disclosed in the invention. In addition, the abstract and title are only used to assist in patent document retrieval and are not intended to limit the scope of the invention. Moreover, the terms "first," "second," etc., mentioned in this specification or claims are only used to name elements or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

[0136] For those skilled in the art, modifications can be made to the above embodiments without departing from the broad inventive concept of the invention. Therefore, it should be understood that the invention disclosed herein is not limited to the specific embodiments disclosed, and is intended to cover modifications within the spirit and scope of the invention.

Claims

1. A color calibration method for a display, characterized in that, include: The processor obtains the center measurement data of the center of the calibration image displayed on the monitor panel; Edge measurement data of the edge of the calibration image displayed on the panel is obtained by the color sensor of the color calibration device. The processor determines a color correction algorithm based on the center measurement data and the edge measurement data; and The processor performs color correction on the panel based on the color correction algorithm.

2. The color calibration method for a display according to claim 1, characterized in that, Also includes: The processor retrieves the central measurement data from memory, wherein the central measurement data is obtained via a standard colorimeter.

3. The color calibration method for a display according to claim 1, characterized in that, The processor is located in the display.

4. The color calibration method for a display according to claim 1, characterized in that, The processor is located in the color correction device.

5. The color calibration method for a display according to claim 1, characterized in that, Also includes: The processor causes the display to show the calibration image, characterized in that the center measurement data is obtained based on the calibration image.

6. The color calibration method for a display according to claim 1, characterized in that, Also includes: The processor stores the color correction data for color correction in the memory of the display or the color correction device.

7. The color calibration method for a display according to claim 1, characterized in that, Also includes: The display is performed based on the color correction data obtained from the color correction, via the display.

8. The color calibration method for a display according to claim 1, characterized in that, The color correction is configured to be performed when the display is not electrically coupled to the computer device.

9. The color calibration method for a display according to claim 1, characterized in that, Also includes: The color correction device is detachably connected to the edge of the display via the device input / output interface of the color correction device.

10. The color calibration method for a display according to claim 9, characterized in that, The device's input / output interfaces include a general sequence bus interface, a high-resolution multimedia interface, a display port interface, a lightning interface, an Ethernet interface, an integrated circuit bus interface, a sequence peripheral interface, a general asynchronous transceiver interface, a Bluetooth wireless interface, or a wireless network interface.

11. A color calibration system for a display, characterized in that, Includes a display and a color calibration device, wherein: The display includes a panel configured to display a calibration image; and The color correction device includes a color sensor configured to acquire edge measurement data of the edges of the correction image displayed on the panel. The display or the color correction device includes at least one processor, and the at least one processor is configured to: Obtain the center measurement data of the center of the panel; Based on the center measurement data and the edge measurement data, a color correction algorithm is determined; and The panel is color-corrected based on the aforementioned color correction algorithm.

12. The color calibration system for a display according to claim 11, characterized in that, The processor is also configured to: The processor retrieves the central measurement data from memory, wherein the central measurement data is obtained via a standard colorimeter.

13. The color calibration system for a display according to claim 11, characterized in that, The processor is located in the display.

14. The color calibration system for a display according to claim 11, characterized in that, The processor is located in the color correction device.

15. The color calibration system for a display according to claim 11, characterized in that, The processor is also configured to: The processor causes the display to show the calibration image, wherein the center measurement data is obtained based on the calibration image.

16. The color calibration system for a display according to claim 11, characterized in that, The processor is also configured to: The processor stores the color correction data for color correction in the memory of the display or the color correction device.

17. The color calibration system for a display according to claim 11, characterized in that, The display is based on the color correction data obtained from the color correction.

18. The color calibration system for a display according to claim 11, characterized in that, The color correction is configured to be performed when the display is not electrically coupled to the computer device.

19. The color calibration system for a display according to claim 11, characterized in that, The color correction device includes a device input / output interface, and the color correction device is configured to: The color correction device can be detachably connected to the edge of the display via the device input / output interface.

20. A color correction device, characterized in that, The color correction device includes a circuit board, a color sensor, and a device input / output interface, wherein: The circuit board has a first end and a second end opposite to each other; The color sensor is disposed on the side of the circuit board adjacent to the first end; and The device input / output interface is disposed on the side of the circuit board adjacent to the second end, and the device input / output interface includes an extension and a connecting portion, wherein: The extension is disposed on the side of the circuit board and extends in a direction away from the side; and One end of the connector is connected to the extension, and the other end extends toward the color sensor.

Images