TWI667603B - Display device and displaying method - Google Patents

Abstract

The display device includes a display panel and a controller. The display panel contains multiple sensing circuits. The sensing circuit includes a first sensing circuit and a second sensing circuit. The first sensing circuit is disposed at the edge of the image area of the display panel and used to detect the optical signal to generate the first sensing signal. The second sensing circuit is disposed in the image area and used to detect the optical signal to generate the second sensing signal. The controller is coupled to the sensing circuit, and is used to identify the control track formed by the optical signal on the image area according to at least one of the first sensing signal or the second sensing signal, and drive the display panel to display the control command according to the control track .

Description

Display device and display method

The present disclosure relates to a display device, and more particularly to a display device including a display panel for identifying optical signals.

Display devices are common in various applications. For example, in a presentation application, the display device may be used to display the presentation image to be presented. However, in current briefing applications, users can usually only project light sources on the display image through a device such as a laser pen to guide the content, and cannot allow the display device to have other interactions or more convenient corresponding operations with the user.

In view of this, the present disclosure proposes a display device and a display method for identifying an optical signal, so as to solve the problems mentioned in the prior art.

One embodiment of the present disclosure relates to a display device. The display device includes a display panel and a controller. The display panel contains multiple sensing circuits. The sensing circuit includes a first sensing circuit and a second sensing circuit. The first sensing circuit is disposed at the edge of the image area of the display panel and used to detect the optical signal to generate the first sensing signal. The second sensing circuit is arranged in the image area, and It is used to detect the optical signal to generate the second sensing signal. The controller is coupled to the sensing circuit, and is used to identify the control track formed by the optical signal on the image area according to at least one of the first sensing signal or the second sensing signal, and drive the display panel to display the control command according to the control track .

An embodiment of the present disclosure relates to a display method. The display method includes: detecting optical signals by at least one first sensing circuit in the display panel and generating at least one first sensing signal; detecting optical signals by at least one second sensing circuit in the display panel, And generating at least one second sensing signal; identifying at least one of at least one first sensing signal or at least one second sensing signal, identifying a control track formed by the optical signal on the image area of the display panel; and according to the control The trajectory drives the display panel to display manipulation commands, wherein at least one first sensing circuit is disposed on at least one edge of the image area of the display panel, and at least one second sensing circuit is disposed in the image area.

100‧‧‧Display unit

120‧‧‧sensing circuit

140‧‧‧ pixel circuit

T1~T5‧‧‧Transistor

C‧‧‧Capacitance

G0, G1, S1, V1, GND‧‧‧ voltage

L‧‧‧Reading line

D‧‧‧Data cable

G‧‧‧Gate line

200‧‧‧Display panel

220‧‧‧Controller

240‧‧‧Control device

VC‧‧‧Drive signal

VS1, VS2‧‧‧sensing signal

SL, SL1, SL2 ‧‧‧ optical signal

202‧‧‧First sensing area

204‧‧‧Second sensing area

A~F‧‧‧Control track

CW, P‧‧‧Control mode

T _CW , T _P , T _H ‧‧‧ time

The present disclosure can be more fully understood by reading the following detailed description of the embodiments, with reference to the drawings as follows: FIG. 1 is a schematic diagram of a circuit drawn according to some embodiments of the present disclosure; FIG. 2A is based on A schematic diagram of a display panel shown in some embodiments of this disclosure document; FIG. 2B is a schematic diagram of a display system according to some embodiments of this disclosure document; FIG. 3 is a schematic diagram of some embodiments according to this disclosure document. The display of light signal Intent; and FIG. 4 is a flowchart of a method according to some embodiments of the present disclosure.

The following is a detailed description of the embodiments in conjunction with the accompanying drawings, but the specific embodiments described are only used to explain the embodiments of the present invention and are not used to limit the embodiments of the present invention, and the description of the structural operations is not intended to limit their execution. The sequence, any structure recombined by components, to produce devices with equal effects are within the scope covered by the disclosure of the embodiments of the present invention.

In this article, the term "circuit" generally refers to an object that is connected by one or more transistors and/or one or more active and passive components in a certain way to process a signal, and can also refer to an object formed by including one or more circuits Single system.

Refer to Figure 1. FIG. 1 is a schematic diagram of a display unit 100 according to some embodiments of the present disclosure. In some embodiments, the display unit 100 can be used to display the image to be presented, and simultaneously sense the optical signal and display the image and the command corresponding to the optical signal. The display unit 100 includes a sensing circuit 120 and a pixel circuit 140. In some embodiments, the display unit 100 is formed by a thin film transistor (TFT), that is, the sensing circuit 120 and the display circuit 140 are TFT circuits.

In some embodiments, the display unit 100 is a part of the circuit in the display panel 200 (as shown in FIG. 2A later). In some embodiments, the display panel 200 includes multiple display units 100 with the same structure. In some embodiments, the plurality of circuits 100 having the same structure are arranged in a matrix on the display panel 200. More content related to the display panel 200 will be discussed later with FIG. 2A.

In some embodiments, the sensing circuit 120 is a light sensing circuit, and the sensing circuit 120 is used to receive an optical signal (not shown in FIG. 1) to generate a corresponding sensing signal. In some embodiments, the sensing circuit 120 is used to recognize the optical signal. For example, the sensing circuit 120 is used to recognize different wavelengths of the optical signal and generate corresponding sensing signals in response to the received different wavelengths (such as described below) VS1 or VS2). In other examples, the sensing circuit 120 is used to identify different repetition rates of optical signals. In a further example, the sensing circuit 120 is used to identify the trajectory of the optical signal moving on the display panel 200. The embodiment of recognizing the trajectory of the optical signal will be discussed later.

In some embodiments, the optical signal is visible light, for example, the optical signal is narrow-band laser light or a combined light combining multiple narrow-band laser lights. In other embodiments, the optical signal is a combination of visible light and invisible light, for example, the optical signal is a combination of infrared light and red light or a combination of ultraviolet light and blue light. In some embodiments, the light source of the optical signal is a laser light source. In some embodiments, the light source of the light signal is a light emitting diode (LED) light source.

In some embodiments, there is a considerable distance between the light source of the optical signal and the sensing circuit 120. In other words, there is no physical contact between the light source of the optical signal and the sensing circuit 120. In other embodiments, the light source of the optical signal is in physical contact with the sensing circuit 120. The types of optical signals mentioned above are for illustrative purposes only, and various types of optical signals are within the scope of the content of this disclosure document.

In some embodiments, the light source of the optical signal is controlled by the user. In other words, the user can hold a light source (for example, a laser pen or a control device 240 described later) to illuminate the light signal on the display panel 200, so that the display unit 100 can respond to the light Signal to generate the corresponding operation. In this way, the user can generate an interactive relationship with the display panel 200.

As shown in FIG. 1, the sensing circuit 120 is coupled to the pixel circuit 140. In some embodiments, the sensing circuit 120 includes a capacitor C, a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, and a fifth transistor T5.

The first end of the capacitor C is coupled to the first end of the first transistor T1 and the first end of the fifth transistor T5. The second terminal of the capacitor C receives a voltage (for example, the ground voltage GND). The control terminal of the first transistor T1 receives the driving voltage G1. The first end of the second transistor T2 is coupled to the second end of the first transistor T1. The control terminal of the second transistor T2 receives the driving voltage S1. The second terminal of the second transistor T2 is coupled to the control terminal. The second terminal of the third transistor T3 is coupled to the second terminal of the fourth transistor T4 and receives a voltage V1. The first end of the third transistor T3 and the first end of the fourth transistor T4 are coupled to the first end of the second transistor T2. The first terminal of the third transistor T3 is coupled to the control terminal. The first terminal of the fourth transistor T4 is coupled to the control terminal. The second terminal of the fifth transistor T5 is coupled to the read line L. The control terminal of the fifth transistor T5 is coupled to the driving voltage G0.

In some embodiments, the first transistor T1, the second transistor T2, the third transistor T3, and the fourth transistor T4 are used to receive optical signals to generate signals. In some embodiments, the fifth transistor T5 is used to control the voltage on the first end of the capacitor C according to the driving voltage G0. In some embodiments, the fifth transistor T5 operates as a switch. In some embodiments, the read line L is used to receive the sensing signals VS1 and/or VS2 generated in response to the optical signals.

In some embodiments, when the fifth transistor T5 is off and the first The transistor T1 is turned on, and the voltage on the first end of the capacitor C is approximately equal to the voltage V1, which is called the restart mode of the sensing circuit 120 in this state. In some embodiments, when the fifth transistor T5, the first transistor T1, and the second transistor T2 are all turned off, the voltage on the first end of the capacitor C is determined by the first transistor T1 and the second transistor T2 The leakage path provided is reduced, which is referred to as the operation mode of the sensing circuit 120 in this state. In some embodiments, when the fifth transistor T5 is turned on, the voltage on the first end of the capacitor C is transmitted to the read line L through the fifth transistor T5, which is called the sampling mode of the sensing circuit in this state.

The configuration of the above-mentioned sensing circuit 120 is for exemplary purposes only, and the various configurations of the sensing circuit 120 are within the scope of the content of this disclosure. For example, the sensing circuit further includes a sixth transistor (not shown), the sixth transistor is coupled between the capacitor C and the first transistor T1, and the control terminal of the sixth transistor is coupled to the second transistor The first end of T2.

In some embodiments, the pixel circuit 140 is used to display the image and the command corresponding to the optical signal sensed by the sensing circuit 120. As shown in FIG. 1, the pixel circuit 140 is coupled to a data line D and a gate line G, and displays images and commands through data transmitted by the data line D.

The configuration of the above-mentioned display unit 100 is for exemplary purposes only, and the display unit 100 with various configurations is within the scope of the content of the disclosure.

Refer to Figure 2A. FIG. 2A is a schematic diagram of a display panel 200 according to some embodiments of the present disclosure. In some embodiments, the display panel 200 includes a first sensing area 202 and a second sensing area 204. In some embodiments, the first sensing area 202 is an edge sensing area, and the second sensing area 204 is a central sensing area (such as the area within the dotted frame in FIG. 2A), wherein the first sensing area 202 and The second sensing area 204 is provided with a plurality of display units 100 in FIG. 1. In some embodiments, the first sensing area 202 and the second sensing area 204 have similar structures and similar circuit functions. In some embodiments, the first sensing area 202 and the second sensing area 204 are an integral and inseparable structure.

As shown in FIG. 2A, the first sensing area 202 is disposed at the edge of the image area of the display panel 200, the second sensing area 204 is disposed at the center area (ie, the image area) of the display panel 200, and the second sensing area 204 is The first sensing area 202 is surrounded.

Refer to Figure 2B. FIG. 2B is a schematic diagram of a display device according to some embodiments of the present disclosure. The display system includes a display panel 200, a controller 220 and a control device 240. In some applications, the display system can be used as an electronic blackboard, but this case is not limited to this.

As shown in FIG. 2B, the controller 220 is coupled to the display panel 200. The control device 240 is configured with a light source, which is used to project a light signal SL onto the display panel 200. In some embodiments, the control device 240 can be used by a user to equivalently input the command to be executed to the display panel 200.

The display panel 200 generates at least one sensing signal VS1 and/or VS2 according to the detected optical signal SL. The controller 220 is used to receive at least one sensing signal VS1 and/or VS2 generated by the display panel 200 and output a driving signal VC to the display panel 200 according to the at least one sensing signal VS1 and/or VS2.

For example, in some embodiments, the display unit 100 in the first sensing area 202 is used to detect the optical signal SL to generate one or more sensing signals VS1. For example, when a display unit 100 in the first sensing area 202 receives the optical signal SL, the display panel 200 generates a sensing signal VS1 for the controller 220 to recognize the position of the optical signal SL on the first sensing area 202 . Or, when the optical signal SL A continuous movement trajectory (for example, the control trajectory A) is formed on a sensing area 202, and the plurality of display units 100 in the first sensing area 202 detects the optical signal SL to generate a plurality of sensing signals VS1. In this way, the controller 220 can determine the trajectory of the optical signal SL through at least one sensing signal VS1 transmitted by the signal line L.

Similarly, the display unit 100 in the second sensing area 204 detects the optical signal SL and generates one or more sensing signals VS2. In some embodiments, the controller 220 can transmit at least one sensing signal VS2 via the signal line L. In some embodiments, the controller 220 is used to receive multiple electronic signals from different sensing areas. In some embodiments, the controller is used to distinguish the sensing signals VS1 and VS2 generated by the first sensing region 202 and the second sensing region 204, that is, the controller 220 can distinguish that the optical signal SL is irradiated on the first sensor On the measuring area 202 or the second sensing area 204.

In some embodiments, the controller 220 is used to receive the corresponding trajectories of the sensing signals VS1 and VS2. In a further embodiment, the controller 220 is used to identify the position of the optical signal SL on the display panel 200 according to the sensing signals VS1 and/or VS2.

In different embodiments, the user can form a single point or different control trajectories (eg, control trajectories A to F) on the display panel 200 by projecting the optical signal SL through the control device 240 to input the control command to be executed. By identifying the type of the control trajectories A~F according to at least one of the sensing signals VS1 or VS2, the controller 220 can output a corresponding driving signal VC to drive the display panel 200 to display a corresponding control command. The following describes the control trajectories A~F in sequence.

As far as the control trajectory A is concerned, the control trajectory A is that the optical signal SL moves from outside the display panel 200 to the second sensing area 204 in the display panel 200, that is, the optical signal SL first passes through the first sensing area 202 and then passes At least one second sensing area 204. Under this condition, in response to the control trajectory A, the first sensing area 202 and the at least one second sensing area 204 sequentially generate corresponding multiple sensing signals VS1 and VS2 to the controller 220. If the controller 220 receives the sensing signal VS1 generated by the first sensing area 202 and then receives the sensing signal VS2 generated by at least one second sensing area 204, the corresponding path of the control trajectory A can be identified. As shown in FIG. 2A, the moving path of the track A is to pass through the first sensing area 202 and then the second sensing area 204 from outside the display panel 200.

In terms of the control trajectory B, the control trajectory B is that the optical signal SL moves from the second sensing area 204 in the display panel 200 to the outside of the display panel 200, that is, the optical signal SL first passes through the second sensing area 204 and then One sensing area 202. Under this condition, in response to the control trajectory B, the second sensing area 204 and the first sensing area 202 sequentially generate corresponding sensing signals VS2 and VS1 and transmit them to the controller 220. If the controller 220 receives the sensing signal VS2 generated by the second sensing area 204 and then receives the sensing signal VS1 generated by the first sensing area 202, it can recognize the movement path of the control trajectory B. As shown in FIG. 2A, the movement path of the control trajectory B first passes through the second sensing area 204, and then passes through the first sensing area 202 to the outside of the display panel 200.

In terms of the control trajectory C, the control trajectory C is that the optical signal SL moves from outside the display panel 200 to the second sensing area 204, and then to the display panel 200, that is, the optical signal first passes through the first sensing area 202 passes through at least one second sensing area 204, and then passes through the first sensing area 202. Under this condition, in response to the control trajectory C, the first sensing area 202 passing through the first time, the second sensing area 204 and the first sensing area 202 passing through the second time sequentially generate corresponding sensing signals VS1 , VS2 and VS1 to the controller 220. If the controller 220 receives the sensing signal VS1 generated by the first sensing area 202, and then receives the sensing signal VS2 generated by the second sensing area 204, and After receiving the sensing signal VS1 generated by the first sensing area 202, the movement path of the control trajectory C can be identified. As shown in FIG. 2A, the movement path of the control trajectory C is from outside the display panel 200 through a first sensing area 202, then through the second sensing area 204, and then through the first sensing area 202. That is, the control track C touches the edge of the display panel 200 at least twice.

Taking the aforementioned control trajectories A~C as an example, in some embodiments, the controller 220 may determine that the control trajectories A~C touch the edge of the display panel 200 according to at least one sensing signal VS1 and/or at least one sensing signal VS2. The order of the image area. In this way, according to different touch sequences, the controller 220 may select one of the plurality of preset commands as the control command to be executed, and drive the display panel 200 to display the control command.

Continuing to refer to FIG. 2A, in terms of the control trajectory D, the control trajectory D is the clockwise movement of the optical signal SL on the second sensing area 204 in the display panel 200 to form a closed area, that is, the optical signal SL passes through the second The plurality of display units 100 in the sensing area 204 pass through the repeated display units 100 to form a closed area clockwise. Under this condition, in response to the manipulation trajectory D, the plurality of display units 100 in the second sensing area 204 sequentially generate corresponding plurality of sensing signals VS2 to the controller 220. If the controller 220 receives the sensing signal VS2 generated by the second sensing area 204, and then receives the sensing signal VS2 generated by the repeated display unit 100, and the position order of the display units 100 is clockwise, it can be identified Control the movement track of track D. As shown in FIG. 2A, the movement trajectory of the control trajectory D passes through the second sensing area 204, and then passes through the repeated display unit 100 in the clockwise direction.

As far as the control trajectory E is concerned, the control trajectory E is that the optical signal SL moves counterclockwise on the second sensing area 204 in the display panel 200 to form a closed area The domain, that is, the optical signal SL passes through the plurality of display units 100 in the second sensing area 204, and then passes through the repeated display units 100 to form a closed area counterclockwise. Under this condition, in response to the manipulation trajectory E, the multiple display units 100 in the second sensing area 204 sequentially generate corresponding multiple sensing signals VS2 to the controller 220. If the controller 220 receives the sensing signal VS2 generated by the second sensing area 204, and then receives the sensing signal VS2 generated by the repeated display unit 100, and the position order of the display units 100 is counterclockwise, it can be identified Control the moving track of track E. As shown in FIG. 2A, the movement trajectory of the control trajectory E passes through the second sensing area 204, and then passes through the repeated display unit 100 in the counterclockwise direction.

As far as the control trajectory F is concerned, the control trajectory F is the light signal SL moving on the second sensing area 204 in the display panel 200 to form an unenclosed area, that is, the light signal SL passes through a plurality of the second sensing area 204 The display unit 100 forms an unclosed area without going through the repeated display unit 100. Under this condition, in response to the manipulation trajectory F, the plurality of display units 100 in the second sensing area 204 sequentially generate corresponding plurality of sensing signals VS2 to the controller 220. If the controller 220 receives the sensing signal VS2 generated by the second sensing area 204 and no longer receives the sensing signal VS2 generated by the repeating display unit 100, it can recognize the movement trajectory of the control trajectory F. As shown in FIG. 2A, the movement trajectory of the control trajectory F passes through the second sensing area 204, and no longer passes through the repeated display unit 100.

Taking the above control trajectories D~F as an example, in some embodiments, the controller 220 may determine the rotation direction of the control trajectories D~F on the image area of the display panel 200 according to at least one sensing signal VS2 and whether or not to form a Closed area. In this way, according to different rotation directions and whether a closed area is formed, the controller 220 may select one of a plurality of preset commands as the control command to be executed, and The display panel 200 is driven to display the manipulation instruction.

The above control trajectories A~F are for illustrative purposes only, and various control trajectories are within the scope of the contents of this disclosure.

In some embodiments, the controller 220 is further used to output a driving signal VC to drive the display panel 200 to display the corresponding control command in response to the control track recognized by the controller 220. As described previously, in one or more embodiments, the controller 220 can recognize the control trajectory generated by the optical signal SL on the display panel 200 according to at least one sensing signal VS1 and/or at least one sensing signal VS2. According to one or more conditions such as the order in which the control trajectory touches the edge of the display panel 200 and the image area, whether a closed area and/or rotation direction are formed, the controller 220 can output a corresponding driving signal VC to drive the display panel 200 to display the corresponding operating. Therefore, the controller 220 outputs the corresponding driving signal VC to the display panel 200 according to the above determination, so that the display panel 200 displays the corresponding operation.

For example, in some embodiments, the controller 220 is used to identify the control trajectory generated by the optical signal SL on the display panel 200, and first determine whether the control trajectory has touched the first sensing area 202; if there is no touch, the first sensing area 202 , And then determine whether the control trajectory forms a closed area; if it forms a closed area, then determine the direction of rotation of the control trajectory; or, if it touches the first sensing area 202, then determine whether the first sensing area is touched first 202 or touch the second sensing area 204 first, and then determine whether the first touch area 202 or the second sensing area 204 is touched last. The above is only an example, and this case is not limited to the above judgment order.

For ease of understanding, in this disclosure, the operation corresponding to the control track A is defined as the control instruction 1, the operation corresponding to the control track B is defined as the control instruction 2, the operation corresponding to the control track C is defined as the control instruction 3, and the control track D is The corresponding operation is defined as the control instruction 4, the operation corresponding to the control trajectory E is defined as the control instruction 5, and the operation corresponding to the control trajectory F is defined as the control instruction 6. In some embodiments, the display panel 200 displays corresponding control commands 1 to 6 according to the received driving signal VC.

Refer to Figure 3. FIG. 3 is a schematic diagram of the optical signal SL according to some embodiments of the present disclosure. In some embodiments, the light source of the control device 240 can output different light signals SL in a variety of different modes. The enabling period of the optical signal SL (for example, the period of being at a high level) will have different setting methods according to different modes. For example, as shown in FIG. 3, the control device 240 can generate the optical signal SL with different enabling periods in the continuous wave mode CW or the pulse mode P.

In FIG. 3, the optical signal SL1 sent by the control device 240 in the continuous mode CW has a uniform energy time T _CW . In some embodiments, the enable time T _{CW is} greater than 16.6 milliseconds (ms). In other words, the repetition rate of the continuous mode CW optical signal is less than 60 hertz (Hz).

In FIG. 3, the optical signal SL2 sent by the control device 240 in the burst mode P has a period T _P. In some embodiments, the period T _P P surge mode is less than 16.6ms. In other words, in the burst mode P, the time difference between every two adjacent enabling periods T _{H in} the optical signal SL will be less than 16.6 ms. As shown in FIG. 3, the light signal SL2 in surge mode period T _P is less than P of 16.6 ms, so the time T _H is also enabled less than 16.6ms. In other words, the repetition rate of the optical signal of the burst mode P is greater than 60 Hz.

In some embodiments, as the enabling period of the optical signal SL1 or SL2 is different, the plurality of display units 100 in the display panel 200 may have different timings Sequenced sensing signal VS1 or VS2. In some embodiments, the controller 220 is further used to identify the enabling period of the optical signal SL according to the timing of the at least one sensing signal VS1 and/or VS2 to confirm the operation mode of the control device 240. In some embodiments, the controller 220 may also output the corresponding driving signal VC according to the different enabling periods of the optical signal SL, so that the display panel 200 displays different control commands.

Accordingly, according to one or more of the above embodiments, in addition to one or more conditions such as the order in which the control track touches the edge of the display panel 200 and the image area, whether a closed area is formed and/or the direction of rotation, etc., the controller 220 may further According to the different enabling periods of the optical signal SL, the preset instruction set is further classified to select the corresponding operation therefrom.

In some embodiments, according to FIG. 2A and FIG. 3, the controller 220 recognizes the control trajectories A~F and the mode CW or P of the optical signal, so that each control command 1~6 described above can be further divided into two Manipulation instructions. That is, with the identified trajectory and the mode of the optical signal, the control trajectories A~F shown in FIG. 2A can correspond to up to 12 control commands 1-12.

For ease of understanding, the classification of the control commands 1~12 is organized into the following Table 1 and Table 2, where Table 1 corresponds to the optical signal SL1 operating in the continuous mode CW, and Table 2 corresponds to the operating in the surge mode P Optical signal SL2. Counterclockwise/clockwise indicates the rotation direction of the control trajectory, inside to outside, outside to inside indicates that the control trajectory is moved outward from the edge of the display panel 200 through its edge or from the edge of the display panel 200 to the inside of the display panel 200, touching Twice means that the control track touches the edge of the display panel 200 at least twice. The control trajectories that do not belong to the above situation are classified as "other lines".

Table I:

In some embodiments, the control trajectory A and the continuous mode CW optical signal SL1 correspond to the control command 1. In some embodiments, the control trajectory B and the continuous mode CW optical signal SL1 correspond to the control command 2. In some embodiments, the control trajectory C and the continuous mode CW optical signal SL1 correspond to the control command 3. In some embodiments, the control trajectory D and the continuous mode CW optical signal SL1 correspond to the control command 4. In some embodiments, the control trajectory E and the continuous mode CW optical signal SL1 correspond to the control command 5. In some embodiments, the control trajectory F and the continuous mode CW optical signal station SL1 correspond to the control command 6.

In some embodiments, the control command 7 corresponds to the control track A and the light signal SL2 in the burst mode P. In some embodiments, the control trajectory B and the light signal SL2 of the burst mode P correspond to the control command 8. In some embodiments, the control trajectory C and the light signal SL2 of the burst mode P correspond to the control command 9. In some embodiments, the corresponding control signal 10 corresponds to the control path D and the light signal SL2 in the burst mode P. In some embodiments, the control trajectory E and the light signal SL2 of the burst mode P correspond to the control command 11. In some embodiments, the control trajectory F and the light signal SL2 of the burst mode P correspond to the control command 12.

In some embodiments, the manipulation commands 1-12 are to delete, enlarge, reduce, and display the image part on the display panel 200. In some embodiments, the manipulation commands 1-12 are to delete, enlarge, reduce, and all the images displayed on the display panel 200. In some embodiments, the manipulation commands 1-12 are part or all of the image displayed on the mobile display panel 200. In some embodiments, the manipulation commands 1-12 are images or menus that have not been displayed on the display panel 200. In some embodiments, the manipulation commands 1-12 are to switch the display page of the display panel 200, such as turning to the next page. In some embodiments, the manipulation commands 1-12 are to display the identified manipulation track on the display panel 200, that is, to draw a line on the display panel 200.

In some embodiments, some of the operations corresponding to the aforementioned manipulation commands 1-12 are temporarily displayed on the display panel 200, and after a predetermined time, the display panel 200 will return to the original display screen. In other embodiments, some of the operations corresponding to the aforementioned manipulation commands 1-12 are normally displayed on the display panel 200. If there is no next command, the display panel 200 will maintain the displayed screen.

The above control commands 1~12 are only for example purposes, various control The instructions are within the scope of the contents of this disclosure.

In some embodiments, the controller 220 may include at least one processing circuit and a memory circuit. In some embodiments, the instruction sets classified in Table 1 and Table 2 may be created in the form of look-up tables and stored in the memory circuit. At least one processing circuit is configured to recognize the enabling period and/or the control track of the optical signal SL based on at least one sensing signal VS1 and/or sensing signal VS2, to select the corresponding control command from the look-up table of the memory circuit and output the corresponding The driving signal VC. The above setting method is only an example, and this case is not limited to this.

Refer to Figure 4. FIG. 4 is a flowchart of a method 400 according to some embodiments of this disclosure. The method 400 includes steps S402-S416. In some embodiments, the method 400 can be applied to the embodiments in FIGS. 1 to 3. In order to understand the present disclosure in a better way, the method 400 will be discussed with the embodiments of FIGS. 1 to 3, but the present disclosure is not limited thereto.

In step S402, the operation mode of the manipulation device 240 is set to the continuous mode CW or the surge mode P.

In step S404, the control device 240 illuminates the optical signal SL on the display panel 200.

In step S406, the sensing circuit 120 of the display panel 200 senses the optical signal SL and generates at least one sensing signal VS1 and/or VS2 and transmits it to the controller 220. The controller 220 uses the at least one sensing signal VS1 and/or VS2 recognizes the position of the sensed optical signal SL. In some embodiments, step S406 is also called an initial location reporting step.

In step S408, the mobile control device 240 is stopped, or the mobile control device 240 moves the optical signal SL out of the display panel.

In step S410, the sensing circuit 120 of the display panel 200 senses the trajectory of the optical signal SL and transmits at least one sensing signal VS1 and/or VS2 to the controller 220, so that the controller 220 recognizes the sensed control trajectory.

In step S412, the sensing circuit 120 of the display panel 200 senses the optical signal SL, generates a corresponding timing sensing signal according to the mode of the optical signal SL, and transmits the corresponding timing sensing signal to the controller 220, so that the control The device 220 distinguishes the mode of the optical signal.

In step S414, the controller 220 determines the control command according to the control trajectory and the mode of the optical signal SL in Table 1 and Table 2, and generates a corresponding driving signal VC to transmit to the display panel 200.

In step S416, the display circuit 140 of the display panel 200 displays the corresponding manipulation instruction.

In some related technologies, the display panel receives a signal generated by contact, and then performs a corresponding operation. In such related technologies, the display panel cannot simultaneously receive optical signals and perform corresponding operations according to the optical signals. In this way, the operation functions of the display panel will be limited to only contact-type execution or interaction, which greatly reduces the convenience of the display panel.

Compared with the above-mentioned related technologies, with the display panel 200 of the present disclosure combined with the sensing circuit 120 and the pixel circuit 140, the display panel 200 can be operated remotely by an optical signal or interact with a remote user. This further increases the convenience and scope of the display panel 200 being used.

The above description of method 400 includes exemplary operations, but the operations of method 400 need not be performed in the order shown. The order of the operations of the method 400 can be changed, or the operations can be synchronized under appropriate circumstances Execution from time to time, partial execution or omission are all within the spirit and scope of the embodiments of the present disclosure.

Although the embodiments of the present invention have been disclosed as above, it is not intended to limit the embodiments of the present invention. Anyone who is familiar with this skill can make some changes and retouching without departing from the spirit and scope of the embodiments of the present invention. The scope of protection of the embodiments of the present invention shall be defined as the scope of the subsequent patent application.

Claims (8)

A display device includes: a display panel including a plurality of sensing circuits, and the sensing circuits include: at least a first sensing circuit, disposed on at least one edge of an image area of the display panel, and used for detecting Measuring an optical signal to generate at least a first sensing signal; and at least a second sensing circuit disposed in the image area and used to detect the optical signal to generate at least a second sensing signal; a controller , Coupled to the sensing circuits, and used to identify a control track formed by the optical signal on the image area according to at least one of the at least one first sensing signal or the at least one second sensing signal, And driving the display panel to display a control command according to the control trajectory; and a control device for outputting the optical signal in a first mode or a second mode, the optical signal has a consistent energy period, in the first mode The enabling period in the second mode is different from the enabling period in the second mode, and the controller further recognizes the light according to the at least one of the at least one first sensing signal or the at least one second sensing signal For the enabling period of the signal, one of the preset commands is selected as the control command based on the enabling period. The display device according to claim 1, wherein the controller is further used to identify the optical signal on the image area according to the at least one of the at least one first sensing signal or the at least one second sensing signal One location. The display device according to claim 1, wherein the controller is used to determine whether the manipulation track forms a closed area in the image area based on the at least one second sensing signal, and if the manipulation track forms the closed area, the The controller is used to select one of a plurality of preset commands as the control command according to a rotation direction of the control trajectory, wherein the display panel further includes a plurality of pixel circuits, and the pixel circuits correspond to the sensing Circuit setting, if the control track does not form the closed area, the controller is used to drive at least one of the pixel circuits corresponding to the at least one second sensing circuit to display the control track. The display device according to claim 1, wherein the controller is further used to determine that the control track touches one of the at least one edge and the image area according to the at least one first sensing signal and the at least one second sensing signal The sequence is to select one of the preset commands as the control command according to the sequence. A display method includes: detecting an optical signal by at least one first sensing circuit in a display panel and generating at least one first sensing signal; by at least one second sensing circuit in the display panel Detecting the optical signal and generating at least one second sensing signal; identifying the image of the optical signal on the display panel according to at least one of the at least one first sensing signal or the at least one second sensing signal A manipulation trajectory formed on the area; and driving the display panel to display a manipulation instruction according to the manipulation trajectory, wherein the at least one first sensing circuit is disposed on at least one edge of the image area of the display panel, and the at least A second sensing circuit is disposed in the image area, and the display method further includes: outputting the optical signal in a first mode or in a second mode by a control device, wherein the optical signal has a consistent energy period , The enabling period in the first mode is different from the enabling period in the second mode; based on the at least one of the at least one first sensing signal or the at least one second sensing signal, identifying The enabling period of the optical signal; and one selected from a plurality of preset commands based on the enabling period is the control command. The display method as claimed in claim 5, wherein identifying the optical signal further comprises: identifying the optical signal in the image area according to the at least one of the at least one first sensing signal or the at least one second sensing signal On one position. The display method according to claim 5, wherein driving the display panel to display the manipulation instruction includes: determining whether the manipulation track forms a closed area in the image area according to the at least one second sensing signal; if the manipulation track When the closed area is formed, one of the preset commands is selected as the control instruction according to one rotation direction of the control trajectory; and if the control trajectory does not form the closed area, the display panel is driven to display the control trajectory. The display method according to claim 5, wherein driving the display panel to display the manipulation command includes: determining that the manipulation track touches the at least one edge and the at least one edge according to the at least one first sensing signal and the at least one second sensing signal A sequence of the image area; and according to the sequence, one of the plurality of preset commands is selected as the manipulation command.