TWI619111B - Display system - Google Patents

Abstract

A display system includes a screen device and a calibration device. The screen device is used to generate optical signals and receive optical characteristic signals. The calibration device is coupled to the screen device. The calibration device includes an inductor for sensing the optical signal and generating an optical characteristic signal accordingly. The screen device uses the color correction signal to correct the display of the screen device based on the optical characteristic signal.

Description

display system

The invention discloses a display system, in particular a display system with picture correction capability.

As technology advances, a wide variety of displays have been widely used by users. For example, a backlit display, a direct display or a side-lit display, and the like. Also, as the density of the pixel array of the display increases, the display can also be used to display increasingly high resolution images. When the display is displayed on the screen, due to the difference in the manufacturing process or the user's settings, the displayed image may be subject to color shift. For example, hue shift, white balance shift, color brightness shift, and the like. These color shifting phenomena often result in unpleasant hair color or distorted hair color.

When the color shift of the display occurs, the common solution is that the user turns on the visual adjustment function of the display (also called On Screen Display, OSD), and manually adjusts various parameters of the display. The user slowly adjusts to the color he wants with a step-by-step correction. However, such a method of correcting a display screen by manual means is quite time consuming and inaccurate. At present, the advanced display has an automatic correction function, for example, the display can display the automatic correction option in the OSD, or the display itself has a physicalized Auto Calibration button, which can be automatically corrected by the user through the display. Function to correct the display. Although some advanced displays have an auto-correction function, this automatic correction function is only a simple color correction function and cannot perform further image control in an advanced manner. Moreover, the color correction function of some advanced monitors cannot synchronize external data, and it is impossible to update and enhance the color correction capability by using an external database. Also, since the color correction function of the current display is only operated by the database in itself, it is impossible to ensure that the color corrected image is optimized.

An embodiment of the invention provides a display system including a screen device and a calibration device. The screen device is used to generate optical signals and receive optical characteristic signals. The calibration device is coupled to the screen device. The calibration device includes an inductor for sensing the optical signal and generating an optical characteristic signal accordingly. The screen device uses the color correction signal to correct the display of the screen device based on the optical characteristic signal.

Another embodiment of the present invention provides a display system including a screen device and a calibration device. The screen device is used to display a correction interface when the screen correction program is executed. The calibration device is coupled to the screen device for selecting a calibration mode through the calibration interface. The correction interface includes at least one correction mode, and the correction device selects and confirms the correction mode from the at least one correction mode using the at least one button.

1 is an architectural diagram of an embodiment of a display system 100 of the present invention. The display system 100 includes a screen device 10, a calibration device 11, and a computer device 12. The screen device 10 can be any screen with a connection function. The screen device 10 can be a liquid crystal, a backlight, a direct-lit or side-lit screen, or the like. The screen device 10 has a function of displaying a screen, so that an optical signal corresponding to the screen image can be generated. The screen device 10 also has a function of receiving an optical characteristic signal, and the optical characteristic signal is defined as described later. The calibration device 11 is coupled to the screen device 10 and includes a sensor 15 for sensing the optical signal and generating an optical characteristic signal accordingly. The correcting device 11 can be any movable device, such as a mouse shape, a semi-spherical sphere shape, etc., and can be wired to the screen device 10 in a wired or wireless manner. The sensor 15 in the calibration device 11 can be a light sensor with the ability to sense optical signals. Moreover, the sensor 15 can convert the analog optical signal into a digital optical characteristic signal. For example, the sensor 15 can convert the analog optical signal into a digital optical characteristic signal through an internal color filter (RGB Filter). The optical characteristic signal may include a three-dimensional color parameter of a screen image currently displayed by the screen device 10, such as a grayscale value parameter, an RGB gain parameter, and the like. The computer device 12 can be any computing device with a programmable function, such as a personal computer, a notebook computer, a tablet computer, a smart phone, a workstation, and the like. The computer device 12 can be connected (or coupled) to the screen device 10 for receiving an optical characteristic signal, and accordingly generating a color correction signal to the screen device 10 for correcting the display screen of the screen device 10. The color correction signal generated by the computer device 12 may include color gamut conversion data, gamma curve table data, RGB gain correction data, and the like. However, it should be understood that in the present embodiment, the screen device 10 can correct the display screen according to the color correction signal generated by the computer device 12. However, the present invention is not limited thereto. In other embodiments, the screen device 10 itself can generate a color correction signal according to the optical characteristic signal output by the calibration device 11, and automatically correct the screen device 10 by using the color correction signal. Display screen. In other words, when the screen device 10 has a high computing power, the display can be self-corrected without generating a color correction signal through the computer. Therefore, the display system 100 can omit the computer device 12 under the condition that the screen device 10 has high computing power. A more detailed hardware architecture of the display system 100 will be described below.

As shown in FIG. 1, the screen device 10 can include a processing chip (Scalar) 13 and a first memory 14. The first memory 14 can be an Electrically-Erasable Programmable Read-Only Memory (EEPROM), or any device capable of storing data. In addition to the aforementioned sensor 15, the correction device 11 can also comprise at least one button, which is a functional button. In this embodiment, the at least one button may include a hot key HK, a scroll key RK, and a confirmation key EK. In one embodiment, the button is disposed on one side of the correcting device 11, and the sensor 15 is disposed on the other side of the correcting device 11 to User-friendly. In this embodiment, the correction device 11 can receive the color correction signal by using the hot key HK to trigger the screen device 10 to correct the display screen of the screen device 10. The sensor 15 in the calibration device 11 can be coupled to the processing wafer 13 in the screen device 10. As described above, the connection may be wired or wireless. For example, the sensor 15 in the calibration device 11 can be coupled to the processing chip 13 in the screen device 10 through the integrated circuit (I ² C). 13 is configured to receive an optical characteristic signal transmitted from the correcting device 11. The computer device 12 can include a graphics processor 16, an identification unit 17, and a software 18. The identification unit 17 can be used to receive and recognize optical characteristic signals. The software 18 controls the graphics processor 16 to generate a color correction signal to the screen device 10 in accordance with the recognition result of the identification unit 17. In one embodiment, the identification unit 17 is coupled to the processing chip 13 of the screen device 10, and the processing chip 13 transmits the received optical characteristic signal to the identification unit 17. In actual operation, the computer device 12 may further include at least one resistor, and the resistor is coupled to the identification unit 17 and used to adjust the potential of the optical characteristic signal. It should be understood that the computer device 12 includes a second memory. The software 18 in the computer device 12 is written into the second memory in the computer device 12 in an installed manner. For example, the software 18 is mounted on the hard disk of the computer device 12. Moreover, the graphics processor 16 and the identification unit 17 can be separate devices. However, the graphics processor 16 can also integrate the identification unit 17 into a specific graphics processor (for example, this embodiment), and any reasonable hardware change belongs to The scope of the invention is disclosed. The graphics processor 16 in the computer device 12 is coupled to the processing chip 13 in the screen device 10. The coupling manner may be a connection using a data display channel command interface (DDC/CI) specification, but may also be connected by using the integrated circuit described above in the form of a bus bar (I ² C).

As mentioned previously, the correction device 11 can be any removable device and can be wired to the screen device 10 in a wired or wireless manner. 2 is an architectural diagram of another embodiment of a display system 200 of the present invention. The hardware architecture of the display system 200 is similar to the hardware architecture of the display system 100, with the difference that the calibration device 11 in the display system 200 includes a transfer device Tx, and the transfer device Tx is coupled to the sensor 15. The screen device 10 has a receiving device Rx, and the receiving device Rx is coupled to the processing chip 13. The transmitting device Tx has the capability of transmitting a signal of a wireless electromagnetic wave, and the receiving device Rx has the capability of receiving a signal of a wireless electromagnetic wave. In the display system 200, the transmitting device Tx in the correcting device 11 and the receiving device Rx in the screen device 10 can transmit data through any wireless transmission protocol, such as Bluetooth, Wireless Fidelity (Wi-Fi) wireless. Transfer agreements and more. After the sensor 15 senses the optical signal and generates the optical characteristic signal, the optical characteristic signal can be converted into a wireless packet data (Packet Data), and the wireless packet data is transmitted as a wireless electromagnetic wave signal through the transmitting device Tx. After receiving the signal of the wireless electromagnetic wave with the wireless packet data, the receiving device Rx can use the processing chip 13 to analyze the information of the optical characteristic signal in the wireless packet data, and further process the information of the optical characteristic signal. In other words, the manner of data communication between the calibration device 11 and the screen device 10 may be wired transmission as described by the display system 100 (eg, through I ² C), or may be wirelessly transmitted as described in the display system 200, any The method of data transmission between the two devices belongs to the scope of the present invention.

3 is a circuit diagram between the inductor 15 and the processing wafer 13 in the display system 100. As described above, the sensor 15 can generate an optical characteristic signal according to the optical signal. The optical characteristic signal can be transmitted through the integrated circuit interface bus (I ² C), and the integrated circuit interface bus (I ² C) can include the first resistor R1 and the second resistor R2. In other words, the optical characteristic signal includes the serial data signal SDA and the serial clock signal SCL. The transmission line of the serial clock signal SCL is coupled to the first resistor R1, and the first resistor R1 is also coupled to the end of the high voltage VCC, and the first resistor R1 is used to adjust the potential of the serial clock signal SCL. The transmission line of the serial data signal SDA is coupled to the second resistor R2, and the second resistor R2 is also coupled to the end of the high voltage VCC, and the second resistor R2 is used to adjust the potential of the serial data signal SDA. As shown in FIG. 3, since the first resistor R1 and the second resistor R2 can change the potentials of the serial clock signal SCL and the serial data signal SDA, the appropriately designed first resistor R1 and second resistor R2 can be The potential of the serial clock signal SCL and the serial data signal SDA input to the processing chip 13 is determined by actual demand. However, the invention is not limited by Figure 3. For example, the first resistor R1 can be replaced by a plurality of resistors connected in series, and the second resistor R2 can also be replaced with a plurality of resistors in series. Any reasonable hardware modification is within the scope of the present invention.

4 is a circuit diagram of the processing system 100, between the processing chip 13 and the graphics processor 16. As described above, after the processing chip 13 receives the optical characteristic signal generated by the inductor 15, the optical characteristic signal can be transmitted to the computer device 12 for further processing. In this embodiment, the processing chip 13 and the graphics processor 16 can be connected through a data display channel command interface (DDC/CI) standard or an integrated circuit interface bus (I ² C). Therefore, in the foregoing manner, the third resistor R3 and the fourth resistor R4 are respectively coupled to different transmission lines used for processing the output signals of the wafer 13. In other words, the computer device 12 can adjust the potential of the optical characteristic signal by using at least one resistor (for example, the third resistor R3 and the fourth resistor R4). Similarly, the third resistor R3 can be replaced by a plurality of resistors in series, and the fourth resistor R4 can also be replaced with a plurality of resistors in series. Any reasonable hardware modification is within the scope of the present invention. Moreover, as mentioned above, the graphics processor 16 and the identification unit 17 can be separate devices, and the graphics processor 16 can also integrate the identification unit 17 into a particular graphics processor (e.g., this embodiment). Therefore, in FIG. 4, the graphics processor 16 is coupled to the processing chip 13, but the identification unit 17 is also coupled to the processing chip 13 because it is integrated in the graphics processor 16. After the processing chip 13 transmits the optical characteristic signal to the computer device 12, the identification unit 17 can receive and recognize the optical characteristic signal, for example, the color information and the brightness information in the optical characteristic signal. Moreover, since the software 18 is installed in the computer device 12, the software 18 can control the graphics processor 16 according to the identification result of the identification unit 17, so that the graphics processor 16 generates a color correction signal to the screen device 10.

FIG. 5 is a block diagram of the display device 100 in which the screen device 10 displays a calibration interface C1 including a plurality of correction modes. The present invention describes a method of the display system 100 for correcting a picture in FIG. When the screen device 10 displays a screen and generates an optical signal, if the user wants to perform a screen correction program, the hot key HK of the calibration device 11 can be clicked. When the hotkey HK of the correcting device 11 is clicked, the screen device 10 and the computer device 12 can be triggered to enter the screen correction program. At this time, the visual adjustment function (OSD) of the screen device 10 generates the correction interface C1. However, the manner in which the correction interface C1 of the present invention is produced is not limited to being produced using the screen device 10. For example, when the hotkey HK of the calibration device 11 is clicked, the processing chip of the screen device 10 transmits the third data signal to the identification unit 17 of the computer device 12, and the identification unit 17 controls the computer device 12 to transmit the calibration interface according to the third data signal. Displayed to the screen device 10. Since the screen device 10 can be connected to the computer device 12, the correction interface C1 can also be generated by the computer device 12. The calibration interface C1 includes a calibration menu window O1 and at least one correction mode. For example, the correction interface C1 includes a first correction mode corresponding to the window M1, a second correction mode corresponding to the window M2, a third correction mode corresponding to the window M3, and a fourth correction mode corresponding to the window M4. However, the invention is not limited to the number of correction modes. Thereafter, the user can select the correction mode to be executed (for example, the first correction mode or the second correction mode) from at least one correction mode by using the scroll key RK of the correction device 11, and then confirm the selected correction mode by using the confirmation key EK. . As described above, the sensor 15 in the calibration device 11 can sense the optical signal currently displayed on the screen device 10 and convert the analog optical signal into a digital optical characteristic signal to the processing chip 13 of the screen device 10. Further, the screen device 10, the correction device 11, and the computer device 12 are in a wired state. Therefore, when the hot key HK of the correction device 11 is clicked, the processing chip 13 can also wake up the software 18 in the computer device 12 to execute the picture correction program. After the processing chip 13 reads the optical characteristic signal and the request data of the calibration mode selected by the user in the calibration interface C1, the information can be transmitted to the computer device 12 for further processing. The second memory of the computer device 12 stores a plurality of test icons for correcting the screen device 10 (in the embodiment, the plurality of test icons include a first test icon, a second test icon, and a third test chart. Show, the fourth test icon). For example, after the processing chip 13 transmits the first data signal including the optical characteristic signal and the first calibration mode of the corresponding window M1 to the identification unit 17, the identification unit 17 controls the graphics processor by using the software 18 according to the first data signal. The corresponding first test icon stored in the computer memory is captured, and the color correction signal corresponding to the first test icon is transmitted to the screen device 10 to correct the display screen of the screen device 10. Similarly, after the processing chip 13 transmits the second data signal including the optical characteristic signal and the second correction mode corresponding to the window M2 to the identification unit 17, the identification unit 17 controls the graphics processor by using the software 18 according to the second data signal. The corresponding second test icon stored in the computer memory is taken, and the color correction signal corresponding to the second test icon is transmitted to the screen device 10 to correct the display screen of the screen device 10. In other words, after the user triggers the screen correction program by using the hot key HK on the correction device 11, the user then selects and confirms the correction mode to be executed by using the scroll key RK and the confirmation key EK on the correction device 11, the computer device 12 A test pattern of the selected calibration mode is retrieved, and the color correction signal corresponding to the test pattern is transmitted to the second memory 14 in the screen device 10. Alternatively, when the correction device 11 triggers the processing wafer 13 in the screen device 10 using the hot key HK, the processing chip 13 controls the computer device 12 to transmit a corresponding test pattern to the screen device 10. After the processing chip 13 in the screen device 10 reads the data of the first memory 14, the display screen of the screen device 10 can be corrected. Since the correction interface C1 has a plurality of correction modes available for the user to select, the display system 100 of the present invention has a very high operational flexibility. Moreover, the screen device 10 transmits an optical characteristic signal to the computer device 12, and the computer device 12 also transmits a color correction signal to the screen device 10. In other words, the screen device 10 and the computer device 12 have a bidirectional transmission function. The screen device 10 can achieve a more accurate and advanced picture correction effect by the powerful computing power of the computer device 12.

As mentioned above, the display system 100 can be incorporated into the computer device 12 and utilize its powerful computing power to generate color correction signals to the screen device 10 for accurate picture correction. However, the display system 100 can also complete the picture correction process using its own processing chip 13, so that the computer device 12 can be omitted. In other words, the display system 100 can include only the screen device 10 and the calibration device 11 , and the calibration device 11 is coupled to the screen device 10 . The screen device 10 is configured to display a correction interface when the screen correction program is executed, and the correction device 11 is configured to select a correction mode through the correction interface. The above correction interface includes at least one correction mode, and the correction device 11 selects and confirms the above-described correction mode from among the plurality of correction modes using at least one button. The first memory 14 of the screen device 10 can store a plurality of test patterns for use in different calibration modes. For example, the calibration interface includes a first calibration mode and a second calibration mode, and the first memory 14 can store a first test icon corresponding to the first calibration mode (window M1) and a second test corresponding to the second calibration mode (window M2). Illustration. When the user selects the first calibration mode by using the calibration device 11, the processing chip 13 in the screen device 10 will capture the first test icon stored in the first memory 14, and generate a corresponding test icon. The color correction signal (in actual operation, the color correction signal corresponding to the test icon may also be stored in the first memory 14) to correct the display screen of the screen device 10. Similarly, when the user selects the second correction mode by using the correction device 11, the processing chip 13 in the screen device 10 will capture the second test pattern stored in the first memory 14 and generate a second test pattern. A corresponding color correction signal is displayed to correct the display screen of the screen device 10. In other words, in the display system 100 in which the computer device 12 is omitted, the screen device 10 itself can completely execute the screen correction program, including the optical characteristic signal generated by the sensor 15 of the receiving correction device 11, and generate at least one correction mode by using the OSD. The calibration interface C1 and the color correction signal corresponding to the test pattern are generated according to the optical characteristic signal and the calibration mode selected by the user. Finally, the screen device 10 can correct the display screen according to the color correction signal of the test icon generated by itself.

In summary, the present invention describes a display system in which a screen device within a display system has the ability to correct a picture through a computer device, and the screen device within the display system can also self-correct the picture rather than by means of an external computing device. Moreover, the correction device in the display system is coupled to the screen device and has some energy buttons for the user to select a suitable calibration mode. Therefore, the color correction mechanism of the present invention has high operational flexibility. Moreover, since the screen device can also perform bidirectional data transmission with an external computer device, the screen device can also achieve very accurate screen correction through the software installed in the computer device. Compared with the conventional screen device, the color correction mechanism of the screen device of the present invention has high operational flexibility and high reliability. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 200‧‧‧ display system

10‧‧‧Screen device

11‧‧‧ calibration device

12‧‧‧Computer equipment

13‧‧‧Processing wafer

14‧‧‧ memory

15‧‧‧ sensor

16‧‧‧graphic processor

17‧‧‧ Identification unit

18‧‧‧Software

HK‧‧ hotkey

EK‧‧‧Confirmation button

RK‧‧‧ scrolling keys

VCC‧‧‧High voltage

R1, R2, R3 and R4‧‧‧ resistors

SCL‧‧‧ Serial clock signal

SDA‧‧‧ serial data signal

C1‧‧‧ calibration interface

O1, M1, M2, M3 and M4‧‧‧ windows

Tx‧‧‧ conveyor

Rx‧‧‧ receiving device

Figure 1 is an architectural diagram of an embodiment of a display system of the present invention. Figure 2 is an architectural diagram of another embodiment of the display system of the present invention. Figure 3 is a circuit diagram of the sensor and the processing wafer in the display system of Figure 1. Figure 4 is a circuit diagram of the processing chip and the graphics processor in the display system of Figure 1. Fig. 5 is a diagram showing the architecture of the correction interface including a plurality of correction modes in the display system of Fig. 1.

Claims (16)

A display system includes: a screen device for generating an optical signal and receiving an optical characteristic signal; a calibration device coupled to the screen device, including a sensor for sensing the optical signal and generating the signal The optical characteristic signal; and a computer device coupled to the screen device for receiving the optical characteristic signal through the screen device, and generating a color correction signal to the screen device to correct the display screen; The screen device includes a processing chip coupled to the sensor through an integrated circuit interface bus for receiving the optical characteristic signal, the optical characteristic signal comprising a serial data signal and a series of clock signals The integrated circuit of the integrated circuit includes a first resistor for adjusting a voltage of the serial data signal and a second resistor for adjusting a voltage of the serial clock signal. The system of claim 1, wherein the calibration device further comprises at least one button, the at least one button comprises a hot button, and the correcting device triggers the screen device to receive the color correction signal by using the hot button to correct This display screen of the screen device. The system of claim 2, wherein the screen device comprises a first memory for storing a plurality of test patterns for correcting the screen device. The system of claim 2, wherein the computer device comprises a second memory for storing a plurality of test patterns for correcting the screen device, and the correcting device is triggered by the hot key One of the screen devices processes the wafer such that the processing chip controls the computer device to transmit a corresponding test pattern to the screen device. The system of claim 4, wherein the computer device further comprises an identification unit, wherein the test icons include a first test icon, and the identification chip transmits a first data signal to the identification unit. The unit controls the computer device to transmit the first test icon to the screen device according to the first data signal. The system of claim 5, wherein the test icons include a second test icon, and after the processing chip transmits a second data signal to the identification unit, the identification unit controls according to the second data signal. The computer device transmits the second test graphic to the screen device. The system of claim 1, wherein the screen device comprises a first memory for storing the color correction signal. The system of claim 1, wherein the computer device comprises an identification unit coupled to the processing chip, and the processing chip is configured to transmit the optical characteristic signal to the identification unit. The system of claim 8, wherein the computer device further comprises at least one resistor coupled to the identification unit for adjusting a voltage of the optical characteristic signal. The system of claim 1, wherein the computer device comprises an identification unit, a graphics processor and a software, the identification unit is configured to receive and identify the optical characteristic signal, and the software identifies the result according to one of the identification units. The graphics processor is controlled to generate the color correction signal to the screen device. The system of claim 1, wherein the screen device displays a calibration interface when performing a screen calibration procedure; and the calibration device selects a calibration mode through the calibration interface, the calibration interface includes at least one calibration mode, and the calibration device The correction mode is selected and confirmed by the at least one calibration mode using at least one button. The system of claim 11, wherein the screen device comprises a first memory, the first memory is configured to store a first test icon and a second test icon, the calibration interface includes a first correction a mode and a second correction mode, when the calibration device selects the first calibration mode, the screen device generates the first test icon, and when the calibration device selects the second calibration mode, the screen device generates the first Two test illustrations. The system of claim 11, wherein the computer device comprises a second memory for storing a first test icon and a second test icon, the calibration interface comprising a first correction a mode and a second correction mode, the computer device generates the first test icon when the correcting device selects the first calibration mode, and when the correcting device selects the second calibration mode, the computer device generates the first Two test illustrations. The system of claim 13, wherein the computer device further comprises an identification unit, the identification unit controlling the computer device to transmit the calibration interface to the screen device display according to a third data signal transmitted by the processing chip. The system of claim 12 or 13, wherein the correcting means includes a scroll key for selecting the first correction mode or the second correction mode, and a confirmation key for confirming the selected correction mode. The system of claim 11, wherein the correcting means includes a hot key for triggering the picture correction procedure.