TWI864845B - OSD pattern display method, electronic chip and information processing device - Google Patents

Abstract

The present invention mainly discloses an OSD pattern display method, which is applied to a display driver chip such as DDIC or TDDI, and includes the following steps: sending a detection signal to a display panel to obtain a corresponding feedback signal; analyzing the feedback signal to confirm whether the display panel includes at least one damaged block; when the at least one damaged block includes a first display block for displaying at least one OSD pattern, changing the setting to display the at least one OSD pattern by a second display block that is not damaged; and when the display panel module does not have a damaged block, maintaining the first display block to display the at least one OSD pattern. In short, the OSD pattern display method of the present invention is used to enable the display driver chip to have a panel damage area detection function. When the display panel is found to contain a damage area through detection, the damage area will be avoided when the corresponding OSD pattern is displayed according to the sudden/abnormal situation, thereby preventing the OSD pattern from being unable to display normally.

Description

OSD pattern display method, electronic chip and information processing device

The present invention relates to the technical field of liquid crystal display, and in particular to an OSD pattern display method applied to a car display/electronic instrument panel.

At present, liquid crystal displays have been widely used in vehicle-mounted entertainment devices and electronic instrument panels. FIG. 1 is a block diagram of a known liquid crystal display integrated in an electronic instrument panel. As shown in FIG. 1 , the liquid crystal display 1a mainly includes a liquid crystal display panel 11a and at least one display driver chip 12a. When applied to an electronic instrument panel, the liquid crystal display 1a is required to have an OSD pattern display function, where OSD is an abbreviation of on screen display. Therefore, the display driver chip manufacturer correspondingly integrates an OSD unit 121a in the display driver chip 12a. When an emergency occurs in the car, the OSD unit 121a controls the LCD panel 11a to display warning text and/or patterns in a display area thereof. For example, in FIG. 1 , the first OSD pattern 111a is used to indicate that the braking system is abnormal, the second OSD pattern 112a is used to indicate that the steering system is abnormal, and the third OSD pattern 113a is used to indicate that the vehicle body is hit by an external object.

The first OSD pattern 111a, the second OSD pattern 112a and the third OSD pattern 112a shown in FIG. 1 can be collectively referred to as OSD patterns. Various OSD patterns and their meanings are listed in the maintenance manual of each car. When an emergency occurs in the car, the OSD unit 121a controls the liquid crystal display panel 11a to display at least one OSD pattern to warn and remind the driver. However, the existing situation is that when the liquid crystal display panel 11a is hit by external force or has a part of the display area damaged due to long-term use, it may cause part of the OSD icon to fail to display correctly and correspondingly when an emergency occurs in the car.

From the above description, it can be seen that an OSD pattern display method is urgently needed in the art.

The main purpose of the present invention is to provide an OSD pattern display method, which is applied to a display driver chip such as DDIC or TDDI, so that the display driver chip has a display panel damaged area detection function, so that it can be confirmed by detection whether the display panel contains a damaged area. If the display panel is found to contain a damaged area after detection, the display driver chip can avoid the damaged area when displaying the corresponding OSD pattern according to the sudden/abnormal situation, thereby preventing the OSD pattern from being unable to display normally.

To achieve the above-mentioned purpose, the present invention proposes an embodiment of the OSD pattern display method, which is executed by an electronic chip for display driving a display panel module, and includes the following steps: When an OSD enable signal is received, a detection signal is sent to the display panel module; A feedback signal corresponding to the detection signal is received from the display panel module; The feedback signal is analyzed to confirm whether the display panel module includes at least one damaged block; When the at least one damaged block includes a first display block for displaying at least one OSD pattern, the setting is changed to display the at least one OSD pattern by a second display block that is not damaged; and When the display panel module does not have any damaged blocks or the at least one damaged block does not include the first display block, the at least one OSD pattern is displayed by the first display block.

In one embodiment, the electronic chip is any one selected from the group consisting of a display driver chip and a touch display driver integration (TDDI) chip.

In one embodiment, the display panel module includes a display panel integrated with a gate driving circuit (Gate in panel), and the gate driving circuit includes a detection circuit, and the detection circuit receives the detection signal and generates the feedback signal.

In one embodiment, the display panel module includes a touch panel and a display panel integrated with a gate drive circuit, and the electronic chip executes one of the following multiple schemes to obtain the feedback signal: Sending the detection signal to a signal receiving side of the touch panel and receiving the feedback signal from a signal output side of the touch panel; and Sending the detection signal to a detection line included in the gate drive circuit and receiving the feedback signal from the detection line.

Furthermore, the present invention also proposes an electronic chip, which is used to form a display device together with a display panel module; the characteristic is that the display driver chip executes an OSD pattern display method, thereby driving the display panel to display at least one OSD pattern when an abnormal situation occurs; the OSD pattern display method includes the following steps: When an OSD enable signal is received, a detection signal is sent to the display panel module; A feedback signal corresponding to the detection signal is received from the display panel module; The feedback signal is analyzed to confirm whether the display panel module contains at least one damaged block; In the case where the at least one damaged block includes a first display block for displaying at least one OSD pattern, the setting is changed to display the at least one OSD pattern by a second display block that is not damaged; and In the case where the display panel module does not have any damaged blocks or the at least one damaged block does not include the first display block, the at least one OSD pattern is maintained to be displayed by the first display block.

In one embodiment, the electronic chip is any one selected from the group consisting of a display driver chip and a touch display driver integration (TDDI) chip.

In one embodiment, the display panel module includes a display panel integrated with a gate driving circuit (Gate in panel), and the gate driving circuit includes a detection circuit, and the detection circuit receives the detection signal and generates the feedback signal.

In a feasible embodiment, the display panel is any one selected from the group consisting of a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel, and a Micro-LED display panel.

In one embodiment, the display panel module includes a touch panel and a display panel integrated with a gate drive circuit, and the electronic chip executes one of the following multiple schemes to obtain the feedback signal: Sending the detection signal to a signal receiving side of the touch panel and receiving the feedback signal from a signal output side of the touch panel; and Sending the detection signal to a detection line included in the gate drive circuit and receiving the feedback signal from the detection line.

Furthermore, the present invention also provides an embodiment of an information processing device, which is characterized in that it includes a display device, and the display device includes a display panel module and at least one electronic chip of the present invention as described above. In a feasible embodiment, the information processing device is an electronic device selected from the group consisting of an electronic instrument panel, a car entertainment system, a flat display device, a curved display device, a smart TV, a smart phone, a smart watch, a smart bracelet, a head-mounted display device, a tablet computer, a laptop computer, an all-in-one computer, a financial transaction device, an automated teller machine, an interactive information service station (KIOSK), an electronic device as a point of sales (POS), a car entertainment system, and a door access control device.

In order to enable the Review Committee to further understand the structure, features, purpose, and advantages of the present invention, the following are attached with drawings and detailed descriptions of preferred specific embodiments.

FIG. 2 is a block diagram of a display device applying an OSD pattern display method of the present invention. As shown in FIG. 2 , the display device 1 mainly includes a display panel module 11 and at least one electronic chip 12 used to perform display driving on the display panel module 11 . The electronic chip 12 may be, but is not limited to, a display driver. chip (DDIC) or touch display driver integrated (TDDI) chip. When applied to electronic instrument panels or car entertainment systems, the display device 1 will be equipped with an OSD pattern display function. Correspondingly, an OSD unit 121 is integrated into the electronic chip 12 . When an emergency occurs, the OSD unit 121 controls the display panel module 11 to display warning text and/or patterns in a display area. For example, in FIG. 2 , the first OSD pattern 111 is used to indicate that the braking system is abnormal, the second OSD pattern 112 is used to indicate that the steering system is abnormal, and the third OSD pattern 113 is used to indicate that the vehicle body is hit by an external object.

FIG3 is a flow chart of an OSD pattern display method of the present invention. As shown in FIG2, when an abnormal/emergency situation occurs, the electronic chip 12 will receive an OSD enable signal (OSD enable) to enable the OSD unit 121, and at this time, the OSD pattern display method of the present invention is enabled at the same time. As shown in FIG3, the method flow first executes steps S1~S2: when an OSD enable signal is received, a detection signal is sent to the display panel module 11, and a feedback signal corresponding to the detection signal is received from the display panel module 11. It should be known that in an actual application requirement, the display panel module 11 will only include a display panel, that is, the display panel module 11 only has a display function and does not provide a touch function. Therefore, if the display panel module 11 includes a display panel integrating a gate drive circuit (Gate in panel, GIP circuit), the electronic chip 12 is configured to send the detection signal to a detection circuit included in the gate drive circuit and receive the feedback signal from the detection circuit. In this application example, the display panel may be, but is not limited to, a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel, or a Micro-LED display panel. In this way, when the display panel is hit by external force or used for a long time and some display blocks are damaged, the position of the damaged display block can be detected through the GIP circuit, so the detection signal is called a GIP signal here.

In another practical application requirement, the display panel module 11 includes a touch panel and a display panel, that is, the display panel module 11 has both display function and touch function. At this time, the electronic chip 12 can send the TP signal (i.e., the detection signal) to the detection circuit to obtain the feedback signal. In addition, the electronic chip 12 can also send a detection signal to a signal receiving side of the touch panel, and receive a feedback signal from a signal output side of the touch panel. It should be understood that the detection signal received by the signal receiving side is an excitation signal of the touch panel, and the feedback signal corresponding to the excitation signal is a touch sampling signal. In this application, after the display panel module 11 is hit by an external force, the damaged area of the display panel and the damaged area of the touch panel are usually at the same position, so the position of the damaged display area of the display panel can be detected by the GIP circuit. Of course, the position of the damaged display area of the touch panel can also be detected by sending an excitation signal to the touch panel, thereby knowing the position of the damaged display area of the display panel. Therefore, in this application, the detection signal is a GIP signal or a TP signal.

FIG4 is an operation diagram of the display panel module shown in FIG2 for displaying an OSD pattern. As shown in FIG3, the method flow then executes step S3: analyzing the feedback signal to confirm whether the display panel module 11 includes at least one damaged block. If yes, then executing step S4: in the case where the at least one damaged block includes a first display block for displaying at least one OSD pattern, changing the setting to display the at least one OSD pattern by a second display block that is not damaged (as shown in FIG4). On the contrary, if not, then step S5 is executed: when the display panel module 11 does not have any damaged block or the at least one damaged block does not include the first display block, the at least one OSD pattern is displayed by the first display block.

Thus, the above has completely and clearly described the OSD pattern display method of the present invention; and, from the above, it can be known that the present invention has the following advantages:

(1) The present invention discloses an OSD pattern display method, which is applied to a display driver chip such as DDIC or TDDI, so that the display driver chip has a display panel damaged area detection function, so that it can be confirmed by detection whether the display panel contains a damaged area. If the display panel is found to contain a damaged area after detection, the display driver chip can avoid the damaged area when displaying the corresponding OSD pattern according to the sudden/abnormal situation, thereby preventing the OSD pattern from being unable to be displayed normally.

(2) The present invention also discloses an electronic chip, which is used to form a display device together with a display panel module; its characteristic is that the display driver chip executes the OSD pattern display method of the present invention as described above, thereby driving the display panel to display at least one OSD pattern when an abnormal situation occurs.

(3) The present invention also discloses an embodiment of an information processing device, characterized in that it includes a display device, and the display device includes a display panel module and at least one electronic chip of the present invention as described above. In a feasible embodiment, the information processing device is an electronic device selected from the group consisting of an electronic instrument panel, a car entertainment system, a flat display device, a curved display device, a smart TV, a smart phone, a smart watch, a smart bracelet, a head-mounted display device, a tablet computer, a laptop computer, an all-in-one computer, a financial transaction device, an automated teller machine, an interactive information service station (KIOSK), an electronic device as a point of sales (POS), a car entertainment system, and an access control device.

It must be emphasized that what is disclosed in the above-mentioned case is a preferred embodiment. Any partial changes or modifications that are derived from the technical ideas of this case and are easily inferred by people familiar with the art do not deviate from the scope of the patent rights of this case.

In summary, this case shows that its purpose, means and effects are very different from the known technology, and it is the first invention that is practical and indeed meets the patent requirements for invention. We sincerely request the review committee to examine this carefully and grant a patent as soon as possible to benefit the society. This is our utmost prayer.

1a: LCD display

11a: LCD panel

111a: First OSD pattern

112a: Second OSD pattern

113a: The third OSD pattern

12a: Display driver chip

121a:OSD unit

1: Display device

11: Display panel module

111: First OSD pattern

112: Second OSD pattern

113: The third OSD pattern

12: Electronic chips

121:OSD unit

S1: When an OSD enable signal is received, a detection signal is sent to the display panel module.

S2: Receive a feedback signal corresponding to the detection signal from the display panel module

S3: Analyze the feedback signal to confirm whether the display panel module includes at least one damaged block

S4: If the at least one damaged block includes a first display block for displaying at least one OSD pattern, change the setting to display the at least one OSD pattern using a second display block that is not damaged.

S5: When the display panel module does not have any damaged block or the at least one damaged block does not include the first display block, the first display block is maintained to display the at least one OSD pattern.

FIG. 1 is a block diagram of a known liquid crystal display integrated in an electronic instrument panel; FIG. 2 is a block diagram of a display device to which an OSD pattern display method of the present invention is applied; FIG. 3 is a flow chart of an OSD pattern display method of the present invention; and FIG. 4 is an operation diagram of the display panel module shown in FIG. 2 performing OSD pattern display.

S1: When an OSD enable signal is received, a detection signal is sent to the display panel module

S2: Receive a feedback signal corresponding to the detection signal from the display panel module

S3: Analyze the feedback signal to confirm whether the display panel module contains at least one damaged block

S4: When the at least one damaged block includes a first display block for displaying at least one OSD pattern, change the setting to display the at least one OSD pattern using an undamaged second display block

S5: When the display panel module does not have any damaged blocks or the at least one damaged block does not include the first display block, the at least one OSD pattern is displayed by the first display block.

Claims (6)

An OSD (on screen display) pattern display method is executed by an electronic chip for display driving a display panel module, and includes the following steps: when an OSD enable signal is received, a detection signal is sent to the display panel module; a feedback signal corresponding to the detection signal is received from the display panel module; the feedback signal is analyzed to confirm whether the display panel module includes at least one damaged block; when the at least one damaged block includes a first display block for displaying at least one warning OSD pattern, a setting is changed to display the at least one warning OSD pattern by a second display block that is not damaged; and When the panel module does not have any damaged blocks or the at least one damaged block does not include the first display block, the at least one warning OSD pattern is maintained to be displayed by the first display block; wherein the display panel module includes a touch panel and a display panel integrated with a gate drive circuit, and the electronic chip obtains the feedback signal by performing one of the following two different operations: sending the detection signal to a signal receiving side of the touch panel and receiving the feedback signal from a signal output side of the touch panel; and sending the detection signal to a detection line included in the gate drive circuit and receiving the feedback signal from the detection line. The OSD pattern display method as described in claim 1, wherein the electronic chip is a touch display driver integration (TDDI) chip. An electronic chip is used to form a display device together with a display panel module; its characteristic is that the electronic chip executes an OSD (on screen display) display；display on screen) pattern display method, thereby driving the display panel to display at least one warning OSD pattern when an abnormal situation occurs; the OSD pattern display method includes the following steps: When an OSD enable signal is received, a detection signal is sent to the display panel module; a feedback signal corresponding to the detection signal is received from the display panel module; the feedback signal is analyzed to confirm whether the display panel module includes at least one damaged block; when the at least one damaged block includes a first display block for displaying the at least one warning OSD pattern, the setting is changed to display the at least one warning OSD pattern by a second display block that is not damaged. and when the display panel module does not have any damaged blocks or the at least one damaged block does not include the first display block, the at least one warning OSD pattern is maintained to be displayed by the first display block; wherein the display panel module includes a touch panel and a display panel integrated with a gate drive circuit, and the electronic chip obtains the feedback signal by performing one of the following two different operations: sending the detection signal to a signal receiving side of the touch panel and receiving the feedback signal from a signal output side of the touch panel; and sending the detection signal to a detection line included in the gate drive circuit and receiving the feedback signal from the detection line. An electronic chip as described in claim 3, wherein the electronic chip is a touch display driver integration (TDDI) chip. The electronic chip as described in claim 3, wherein the display panel is any one selected from the group consisting of a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel, and a Micro-LED display panel. An information processing device is characterized by comprising a display device, wherein the display device includes a display panel module and at least one electronic chip as described in any one of claim 3 to claim 5.