Electronic device and display method
By providing a virtual signal to the electronic devices of the embedded touch panel during the blank period to trigger the light emitting component to light, the problem of screen flickering and brightness drop caused by excessively long blank period is solved, and the display effect is improved.
Patent Information
- Application Number
- CN202410032006.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2025-07-11
AI Technical Summary
In the electronic device of the embedded touch panel, the blanking period caused by the time-sharing architecture is too long, causing the lamp board to not move, causing the screen to flicker and brightness to drop.
A virtual signal is provided during the blank period to trigger the light emitting component to emit light, and through the coordinated work of the processing unit and the light source driving unit, the light emitting component ensures that the additional light emitting operation is performed during the blank period.
It effectively avoids the screen flickering problem caused by excessive blanking period, and improves the brightness and display effect of the electronic device.
Smart Images
Figure CN120295497A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an electronic device, and more particularly to an electronic device and a display method in which a light-emitting component emits light during a blank period. Background Art
[0002] In the structure of an in-cell touch panel, a time-division architecture is usually adopted to avoid interference between the scanning signal of the lamp board and the touch signal. However, the time-division architecture may sacrifice the brightness of the electronic device. For example, during the blank period of each frame, since the scanning signal of the lamp board is not triggered, problems such as screen flickering or overall brightness reduction may occur. Therefore, although existing electronic devices have gradually met their intended uses, they do not meet the requirements in all aspects. Thus, there are still some problems regarding electronic devices that need to be overcome. Summary of the Invention
[0003] According to some embodiments, the present disclosure provides an electronic device. The electronic device includes a touch display panel, a processing unit, a light-emitting component, and a light source driving unit. The touch display panel is configured to display a screen during a screen period, where the screen period includes an active period and a blank period, and the active period includes a plurality of display periods and a plurality of touch periods. The processing unit is electrically connected to the touch display panel, where the processing unit is configured to provide a plurality of start signals during the active period and an excitation signal during the blank period. The light-emitting component overlaps with the touch display panel. The light source driving unit is electrically connected to the light-emitting component and the processing unit, and the light source driving unit is configured to cause the light-emitting component to emit light during the active period according to the start signals, and cause the light-emitting component to emit light during the blank period according to the excitation signal.
[0004] According to some embodiments, the present disclosure provides a display method. The display method includes: providing an electronic device, the electronic device including a touch display panel and a light-emitting component; causing the touch display panel to display a screen during a screen period, where the screen period includes an active period and a blank period, and the active period includes a plurality of display periods and a plurality of touch periods; during the active period, providing a plurality of start signals and causing the light-emitting component to emit light according to the start signals; and during the blank period, providing an excitation signal and causing the light-emitting component to emit light according to the excitation signal.
[0005] The electronic device and the display method of the present disclosure can be applied to various types of displays. To make the features and advantages of the present disclosure more obvious and understandable, various embodiments are specifically described below in conjunction with the accompanying drawings as follows. Brief Description of the Drawings
[0006] The viewpoints of the embodiments of the present disclosure can be better understood with the following detailed description in conjunction with the accompanying drawings. It should be noted that, according to industrial standard practices, some features may not be drawn to scale. In fact, for the sake of clear description, the sizes of different components may be increased or decreased.
[0007] Figure 1 FIG. is a block diagram showing an electronic device according to some embodiments of the present disclosure;
[0008] Figure 2 FIG. is a schematic diagram showing an electronic device according to some embodiments of the present disclosure;
[0009] Figure 3 FIG. is a schematic diagram showing a light-emitting component according to some embodiments of the present disclosure;
[0010] Figure 4 FIG. is a timing diagram showing the relationship in time of each unit and signal according to some embodiments of the present disclosure;
[0011] Figure 5 FIG. is a signal schematic diagram between a touch panel sensing chip and a touch component according to some embodiments of the present disclosure;
[0012] Figure 6A is Figure 5 an enlarged schematic diagram of region A1 of
[0013] Figure 6B is Figure 5 an enlarged schematic diagram of region A2 of
[0014] Figure 7 FIG. is a timing schematic diagram showing an electronic device according to some other embodiments of the present disclosure;
[0015] Figure 8 FIG. is a block diagram showing an electronic device according to some further embodiments of the present disclosure;
[0016] Figure 9 FIG. is a timing schematic diagram showing an electronic device according to some further embodiments of the present disclosure; and
[0017] Figure 10 FIG. is a cross-sectional view showing a touch display panel according to some embodiments of the present disclosure.
[0018]
Symbol Description
[0019] 1: Electronic device
[0020] 1S: First substrate
[0021] 2S: Second substrate
[0022] 10: Touch display panel
[0023] 10D: Data driving unit
[0024] 10G: Gate driving unit
[0025] 10S: Surface
[0026] 10T: Touch driving unit
[0027] 12: Light emitting component
[0028] 12D: Light emitting unit
[0029] 13: Processing unit
[0030] 130: Display driving unit
[0031] 131: Bridging unit
[0032] 14: Light source driving unit
[0033] 14A: First light source driving unit
[0034] 14B: Second light source driving unit
[0035] 18: Active sensing component
[0036] 20: Circuit board component
[0037] 40B, 420, 422: Second light emitting scan
[0038] 41, 411, 412: First light emitting scan
[0039] 50D: Display layer
[0040] A1: Area
[0041] A2: Area
[0042] AP1, AP2: Active period
[0043] BP: Blank period
[0044] CP: Light off period
[0045] D1, D2, D3: Direction
[0046] DL: Data line
[0047] DP, DP1, DP2…DPN, DP_N+1: Display period
[0048] DS: Display signal
[0049] E1, E2: Conducting wire
[0050] F0, F1, F2: Frame period
[0051] FTP: Virtual period
[0052] FTS: Virtual signal
[0053] GL: Gate line
[0054] IHP: Data handshaking period
[0055] OP: Lighting period
[0056] P: Pixel
[0057] R1 - R6: Columns
[0058] SC, SC1 - SC6, SCM: Scan signal
[0059] SL: Touch line
[0060] t1 - t4: Time lengths
[0061] TE: Electrode
[0062] TP, TP1 - TPN: Touch period
[0063] TS: Touch signal
[0064] TR1, TR11 - TR1N: Start signal
[0065] TR2: Excitation signal Detailed implementation manners
[0066] To make the above - mentioned objects, features, and advantages of some embodiments of the present disclosure more obvious and understandable, the following detailed description is provided in conjunction with the accompanying drawings.
[0067] It must be understood that the words "including", "comprising", etc. used in this specification are used to indicate the existence of specific technical features, numerical values, method steps, operations, components, and / or components, but do not exclude the addition of more technical features, numerical values, method steps, operations, components, components, or any combination of the above.
[0068] The words "first", "second", "third", "fourth", etc. are used to modify components, not to indicate the priority or precedence relationship between them, but to distinguish components with the same name.
[0069] It should be noted that, without departing from the spirit of the present disclosure, the technical features in several different embodiments can be replaced, recombined, and mixed to complete other embodiments. As long as the features between embodiments do not violate the spirit of the invention or conflict with each other, they can be arbitrarily mixed and used.
[0070] In the present disclosure, the electronic device may include, but is not limited to, a display device, a backlight device, an antenna device, a sensing device, or a splicing device. The electronic device may be a bendable or flexible electronic device. The display device may be a non-self-luminous display device or a self-luminous display device. The antenna device may be a liquid crystal type antenna device or a non-liquid crystal type antenna device. The sensing device may be a sensing device for sensing capacitance, light, heat, or ultrasonic waves, but is not limited thereto. The electronic components may include passive components and active components, such as capacitors, resistors, inductors, diodes, transistors, etc. The diode may include a light-emitting diode or a photodiode. The light-emitting diode may include, for example, an organic light-emitting diode (OLED), a mini light-emitting diode (mini LED), a micro light-emitting diode (micro LED), or a quantum dot light-emitting diode (quantum dot LED), but is not limited thereto. The splicing device may be, for example, a display splicing device or an antenna splicing device, but is not limited thereto. It should be noted that the electronic device may be any permutation and combination of the foregoing, but is not limited thereto. Hereinafter, the display device will be used as the electronic device or the splicing device to illustrate the content of the present disclosure, but the present disclosure is not limited thereto.
[0071] In addition, the appearance of the electronic device may be rectangular, circular, polygonal, a shape with curved edges, or other suitable shapes. The electronic device may have peripheral systems such as a processing system, a driving system, a control system, a light source system, a shelf system, etc. to support the electronic device.
[0072] In some embodiments, additional components may be added to the electronic device of the present disclosure. In some embodiments, some components of the electronic device of the present disclosure may be replaced or omitted. In some embodiments, additional operation steps may be provided before, during, and / or after the manufacturing method of the electronic device. In some embodiments, some of the operation steps may be replaced or omitted, and the order of some of the operation steps may be interchangeable. In addition, it should be understood that some of the described steps may be replaced or deleted for other embodiments of the method. Furthermore, in the present disclosure, the number and size of each component in the drawings are only for illustration and are not used to limit the scope of the present disclosure.
[0073] In some prior electronic devices, each frame (or display screen) includes an active period and a blanking period. During the active period, the touch display panel alternately activates the display function and the touch function to avoid interference between the signals used to control these functions. In this case, the light board operates along with the display components in the touch display panel to provide illumination. However, during the blanking period, since neither the display components nor the touch components in the touch display panel are activated, the light board does not operate either. When the duration of the blanking period is too long, the human eye may perceive the flicker caused by the inoperation of the light board. Therefore, the present disclosure provides an electronic device that triggers the light board to operate by providing virtual signals during the blanking period to avoid the above problems.
[0074] Referring to Figures 1 to 4 , which are block diagrams of an electronic device, schematic diagrams of the electronic device, schematic diagrams of the light-emitting components, and timing diagrams showing the relationships of various units and signals over time, respectively, according to some embodiments of the present disclosure. As Figure 1 shown, the electronic device 1 includes a touch display panel 10, a light-emitting component 12, a processing unit 13, and a light source driving unit 14, but the present disclosure is not limited thereto.
[0075] As Figure 1 and Figure 4 shown, the touch display panel 10 is configured to display a screen during a screen period F1, where the screen period F1 includes an active period AP1 and a blanking period BP. The active period AP1 is before the blanking period BP. Specifically, the active period AP1 includes a plurality of display periods DP (e.g., display periods DP1, DP2...) and a plurality of touch periods TP (e.g., touch periods TP11, TP12...) arranged alternately, and the display periods DP and the touch periods TP do not overlap with each other. Specifically, during the active period AP1, components such as liquid crystal cells in the touch display panel 10 operate according to the display signal. In contrast, during the blanking period BP, components such as liquid crystal cells in the touch display panel 10 do not operate.
[0076] Similarly, the touch display panel 10 is arranged to display another screen within F2 during another screen period, where the screen period F2 includes an active period AP12 and a blank period BP. Similarly, the active period AP12 also includes a plurality of display periods DP (e.g., display periods DP1, DP2...) and a plurality of touch periods TP (e.g., touch periods TP11, TP12...) arranged alternately, and the display periods DP and the touch periods TP do not overlap with each other. In other words, different screen periods (e.g., screen period F1 and screen period F2) may have similar or the same operations. Of course, the present disclosure is not limited thereto. For the sake of simplicity, the operation details of each component will be described in detail below by taking the screen period F1 as an example. In Figure 4 FIG. 3 sequentially shows three consecutive screen periods F0, F1, and F2. For convenience of description, only the complete screen period F1 is shown in the figure, while only a part of the screen period F0 and a part of the screen period F2 are shown.
[0077] As Figure 1 shown, the processing unit 13 is electrically connected to the touch display panel 10. The processing unit 13 is arranged to provide a plurality of start signals TR1 (e.g., start signals TR11, TR12...) during the active period AP1 and provide an excitation signal TR2 during the blank period BP. The light-emitting component 12 is arranged to overlap with the touch display panel 10, as Figure 10 shown. Thus, according to some embodiments, the light-emitting component 12 can be used as a direct-lit backlight of the touch display panel 10. The light source driving unit 14 is electrically connected to the light-emitting component 12 and the processing unit 13. The light source driving unit 14 is arranged to cause the light-emitting component 12 to emit light during the active period AP1 according to the start signal TR1, and cause the light-emitting component 12 to emit light during the blank period BP according to the excitation signal TR2.
[0078] For example, reference can be made to Figure 10, which is a cross-sectional view showing a touch display panel according to some embodiments of the present disclosure. As shown, the touch display panel 10 may partially or completely overlap with the light-emitting component 12 in the direction D3. The touch display panel 10 may have a surface 10S formed by the directions D1 and D2, and the direction D3 may be the normal direction of the surface 10S of the touch display panel 10. The directions D1, D2, and D3 may be different, for example, may be perpendicular to each other. In some embodiments, the touch display panel 10 may include a first substrate 1S, a second substrate 2S, and a display layer 50D. The display layer 50D is disposed between the first substrate 1S and the second substrate 2S. In some embodiments, the first substrate 1S and the second substrate 2S may individually be flexible substrates or rigid substrates. For example, the first substrate 1S and the second substrate 2S may individually include glass, plastic, quartz, or a combination thereof. In some embodiments, the display layer 50D may include film layers such as a liquid crystal layer, a pixel layer, an electrode layer, a circuit layer, etc., but the present disclosure is not limited thereto. According to some embodiments, the display layer 50D may include the multiple pixels P, data driving unit 10D, gate driving unit 10G, data lines DL, gate lines GL, electrodes TE, or a combination thereof described hereinafter Figure 2 , but the present disclosure is not limited thereto.
[0079] As Figure 1 shown, according to some embodiments, the processing unit 13 may include a touch display driving unit 130 and a bridging unit 131. The bridging unit 131 may bridge (e.g., electrically connect) between the touch display driving unit 130 and the light source driving unit 14. The touch display driving unit 130 is configured to provide a touch signal TS during at least one of the multiple touch periods TP. According to some embodiments, within each touch period TP, the touch display driving unit 130 may respectively provide a touch signal TS. The touch signal TS may be provided to the touch display panel 10. Within an individual touch period TP, the touch display driving unit 130 may provide a corresponding touch signal TS to the touch display panel 10. For example, as Figure 4 and Figure 5 shown, during the touch period TP11, the touch display driving unit 130 may provide the touch signal TS11, as Figure 5 shown. During the touch period TP12, the touch display driving unit 130 may provide a corresponding touch signal. According to some embodiments, the processing unit 13 and the light source driving unit 14 may be disposed on the same circuit board assembly 20, but the present disclosure is not limited thereto.
[0080] Referring to Figure 1 and Figure 4, within the active period AP1, the touch display driving unit 130 is configured to transmit touch information during a touch period TP to the bridging unit 131, and the bridging unit 131 is configured to provide an activation signal TR1 based on the touch information. The bridging unit 131 provides the activation signal TR1 to the light source driving unit 14 according to the touch information within the active period AP1. The light source driving unit 14 is configured to cause the light emitting component 12 to emit light within the active period AP1 according to the activation signal TR1. As Figure 4 shown, in some embodiments, the touch period TP includes a first touch period TP11, a second touch period TP12... an Nth touch period TP1N, and the activation signal TR1 includes a first activation signal TR11, a second activation signal TR11... an Nth activation signal TR1N. N can be an integer from 2 to 50, such as an integer from 5 to 30, such as an integer from 10 to 25, but is not limited thereto.
[0081] As Figure 4 shown, taking the first touch period TP11 in the touch period TP as an example, after receiving the touch information of the first touch period TP11, the bridging unit 131 can provide the first activation signal TR11 based on the touch information of the first touch period TP11. The period of the first activation signal TR11 is after the first touch period TP11. According to some embodiments, the period of the first activation signal TR11 is adjacent to the first touch period TP11. According to some embodiments, the end time point of the first touch period TP11 can be the start time point of the period of the first activation signal TR11. According to some embodiments, the end time point of the first touch period TP11 can be the start time point of the period of the first activation signal TR11. According to some embodiments, after the period of the first activation signal TR11 ends, there may also be a time interval before the first activation signal TR11 starts. According to some embodiments, the period of the first activation signal TR11 being adjacent to the first touch period TP11 can mean that there is no other signal between the touch signal TS11 within the first touch period TP11 and the first activation signal TR11.
[0082] Referring to Figure 1 and Figure 4, during the blank period BP, the touch display driving unit 130 can provide a virtual signal FTS, and the bridging unit 131 is configured to provide an excitation signal TR2 according to the touch information in the virtual signal FTS. In other words, after the bridging unit 131 receives the virtual signal FTS, the bridging unit 131 can provide the excitation signal TR2 according to the virtual signal FTS. Specifically, the period of the excitation signal TR2 is after the virtual period FTP of the virtual signal FTS. According to some embodiments, the period of the excitation signal TR2 is adjacent to the period of the virtual signal FTS. According to some embodiments, the end time point of the period of the virtual signal FTS can be the start time point of the period of the excitation signal TR2. Continuing the above process, the light source driving unit 14 can cause the light emitting component 12 to emit light during the blank period BP according to the excitation signal TR2. It is worth mentioning that the virtual signal FTS above is not used to activate any touch electrodes in the touch display panel 10, but is used to activate the bridging unit 131 (which will be further described below). According to some embodiments, after the period of the virtual signal FTS ends, there may also be a period of time before the excitation signal TR2 starts. According to some embodiments, the period of the excitation signal TR2 being adjacent to the period of the virtual signal FTS can mean that there is no other signal between the virtual signal FTS and the excitation signal TR2 during the blank period BP.
[0083] The following describes the light emission of the light emitting component 12. When the light source driving unit 14 receives any one of the start signal TR1 and the excitation signal TR2, the light source driving unit 14 can provide a scanning signal to cause the light emitting component 12 to emit light. For example, please refer to Figure 4 , during the active period AP1, the light source driving unit 14 is configured to cause the light emitting component 12 to perform a first light emission scan 41 (denoted as the first light emission scan 411 in this article and the drawings for easy distinction from other first light emission scans) after the period of the first start signal TR11 in the start signal TR1. In some embodiments, the period of the first light emission scan 411 is between the period of the first start signal TR11 and the second touch period TP12. Similarly, during the active period AP1, the bridging unit 131 can issue a second start signal TR12, and after the light source driving unit 14 receives the second start signal TR12, it can cause the light emitting component 12 to perform another first light emission scan 41 (denoted as the first light emission scan 412 in this article and the drawings for easy distinction from other first light emission scans). In some embodiments, the period of the first light emission scan 412 is between the period of the second start signal TR12 and the third touch period TP13. During the blank period BP, the light source driving unit 14 is configured to cause the light emitting component 12 to perform a second light emission scan 40B (422) after the excitation signal TR2. Figure 4Also shown is that during the blanking period BP of F0 in the previous frame, the excitation signal TR2 and the second light emission scan 40B (420) are generated, which will not be elaborated here.
[0084] Please refer to Figure 3 , according to some embodiments, the light emitting assembly 12 may include a plurality of light emitting units 12D, which may be arranged in a matrix. For example, the plurality of light emitting units 12D may be divided into M groups (M columns) of light emitting units. M may be an integer between 2 and 128, such as between 2 and 100, such as between 2 and 50, such as between 2 and 15.
[0085] As Figure 3 shown, taking M = 6 as an example for illustration, but not limiting the present invention. The plurality of light emitting units 12D includes 6 columns, such as the first column R1, the second column R2... the sixth column R6. The light source driving unit 14 may include a first light source driving unit 14A and a second light source driving unit 14B. According to some embodiments, the light emitting units 12D in the odd-numbered columns (such as the first column R1, the third column R3, and the fifth column R5) may be electrically connected to the right wire E1, and these light emitting units 12D may be further connected to the first light source driving unit 14A via the wire E1. The light emitting units 12D in the even-numbered columns (such as the second column R2, the fourth column R4, and the sixth column R6) may be electrically connected to the left wire E2, and these light emitting units 12D may be further connected to the second light source driving unit 14B via the wire E2. According to some embodiments, the first light source driving unit 14A and the second light source driving unit 14B may be flexible printed circuit boards (FPCs) respectively, but the present invention is not limited thereto.
[0086] In some embodiments, the light emitting units 12D in each column (each group) may be connected to the same positive electrode via the same scan signal line (not shown), but are respectively connected to different negative electrodes via different channel signal lines (not shown), but the present disclosure is not limited thereto. Alternatively, in some embodiments, the light emitting units in each column (each group) may be connected to the same negative electrode, but are respectively connected to different positive electrodes. By scanning the scan signal line and the data input via the channel signal line, the brightness and dimming information of the individual light emitting units 12D can be controlled, and the zonal brightness adjustment of the light emitting assembly 12 can be achieved.
[0087] As Figure 3 shown, taking M = 6 as an example for illustration, the light source driving unit 14 may emit M (= 6) scan signals to sequentially activate the above 6 groups of light emitting units 12D. As Figure 4As shown, the M scanning signals are the first scanning signal SC1 to the Mth scanning signal SCM. In chronological order, the first scanning signal SC1 can scan the light-emitting units in the first column, the second scanning signal SC2 can scan the light-emitting units in the second column... the Mth scanning signal SCM can scan the light-emitting units 12D in the Mth column, thus completing the scanning of all the light-emitting units 12D. The light-emitting units 12D in the first column to the Mth column can emit light in chronological order, and the light-emitting component 12 can be called a scan type light-emitting component.
[0088] As Figure 1 shown, the light-emitting component 12 is used to provide a backlight source for the touch display panel 10. As Figure 3 shown, in some embodiments, each light-emitting unit 12D in the light-emitting component 12 may include at least one light-emitting diode, such as 4 light-emitting diodes. For example, one light-emitting unit 12D may include two serially connected light-emitting diodes and two parallel-connected light-emitting diodes. The light-emitting unit 12D can be designed according to requirements, and is not limited thereto. For example, the design of the light-emitting unit 12D can be adjusted according to the maximum voltage of the light source driving unit 14 to which it is paired. The light-emitting diode may include an organic light-emitting diode, an inorganic light-emitting diode, a submillimeter light-emitting diode, a micro light-emitting diode, a quantum dot light-emitting diode, a combination thereof, or other suitable diodes, but the present disclosure is not limited thereto.
[0089] In some embodiments, as Figure 2 shown, the electronic device includes a touch display panel 10, a data driving unit 10D, a gate driving unit 10G, and a touch driving unit 10T. The touch display panel 10 includes a plurality of pixels P arranged in a matrix, a plurality of gate lines GL, a plurality of data lines DL, and a plurality of touch lines SL. For example, the plurality of pixels P may be or may include display units for displaying primary color signals such as R, G, and B, but the present disclosure is not limited thereto. For example, the plurality of pixels P may include a plurality of pixel electrodes. The data driving unit 10D and the gate driving unit 10G are each electrically connected to the plurality of pixels P in the touch display panel 10. The pixels P are electrically connected to the data driving unit 10D via individual data lines DL respectively, and are electrically connected to the gate driving unit 10G via individual gate lines GL respectively. And the gate driving unit 10G is used to turn on or off each column of pixels P according to a synchronization signal (for example, a vertical synchronization signal (Vsync)). For ease of explanation, Figure 2 only one data line DL and one gate line GL are shown. For example, the gate driving unit 10G can turn on or off an entire column of pixels P according to the synchronization signal, and the data driving unit 10D can input signals to the display area to enable the display area to display an image screen. As Figure 2As shown, the gate driving unit 10G scans the pixels P in the first column via the first gate line (not shown), scans the pixels P in the second column via the second gate line (not shown),..., and scans the pixels P in the last column via the last gate line (not shown). The period during which the gate driving unit 10G scans the pixels P is within multiple display periods DP of the active period AP1. During the touch period TP, the gate driving unit 10G does not scan the pixels P.
[0090] As Figure 2 shown, the touch display panel 10 can be an in-cell touch display panel, that is, the electrode TE is embedded in the touch display panel 10. Specifically, the common electrode that provides a common voltage in the touch display panel 10 can be divided into multiple electrodes TE. The electrodes TE are electrically connected to the touch driving unit 10T via corresponding touch lines SL respectively. For ease of explanation, Figure 2 only one electrode TE and one touch line SL are shown. During the display period DP as Figure 4 shown, the electrode TE can serve as a common electrode, and during the touch period TP, the electrode TE can serve as a touch electrode.
[0091] Please refer to Figure 1 and Figure 2 simultaneously. According to some embodiments, the data driving unit 10D, the gate driving unit 10G, and the touch driving unit 10T can be integrated into a touch display driving unit 130, for example, integrated into one driving chip, such as a touch with display driver integrated chip (TDDI). During the display period DP as Figure 4 shown, the touch display driving unit 130 can provide a display signal DS to the touch display panel 10, and during the touch period TP, the touch display driving unit 130 can provide a touch signal TS to the electrode TE in the touch display panel 10. According to some embodiments, the data driving unit 10D and the touch driving unit 10T can be integrated into the touch display driving unit 130. The gate driving unit 10G can be integrated into the touch display panel 10 and be a gate on panel (GOP). For example, although not shown in the figure, the gate driving unit 10G and the electrode TE can be disposed on the same substrate (not shown).
[0092] Hereinafter, the actual application mode of the present disclosure will be described by a timing diagram. It should be noted that Figures 1 to 3 it is used to illustrate the operation principle of the electronic device 1 and is not intended to limit the positions, numbers, and sizes of the respective components.
[0093] As Figure 4 shown, during the active period AP1 of the frame period F1, the signal emitted by the touch display driving unit 130 of the processing unit 13 can be switched from a high potential to a low potential. In some embodiments, the state of the low potential can be referred to as the touch slot period, and the state of the high potential can be referred to as the display period, but the present disclosure is not limited thereto. When switching to the low potential, the touch display driving unit 130 of the processing unit 13 provides a touch signal TS to the touch display panel 10 during the touch period TP, so that the touch display panel 10 performs touch sensing. According to some embodiments, although not shown in the figure, during the active period AP1 of the frame period F1, the signal emitted by the touch display driving unit 130 can be switched from a low potential to a high potential. That is, the state of the high potential can be the touch slot period, and the state of the low potential can be the display period.
[0094] During the display period DP (e.g., display periods DP1, DP2... DPN, DP_N + 1) of the active period AP1, the signal emitted by the touch display driving unit 130 can be maintained at a high potential all the time. The touch display driving unit 130 of the processing unit 13 provides a display signal DS to the touch display panel 10, so that the touch display panel 10 performs screen display. In some embodiments, the display signal DS can include a synchronization signal, such as a horizontal synchronization signal, but the present disclosure is not limited thereto. In some embodiments, except for the initial display period DP1 and the last display period DP_N + 1, the time length for which the processing unit 13 provides the display signal DS to the touch display panel 10 can be equal to the time length t2 of the display period DP (e.g., DP2... DPN).
[0095] According to some embodiments, as Figure 1 and Figure 4As shown, after the processing unit 13 provides the touch signal TS to the touch display panel 10, the bridging unit 131 of the processing unit 13 provides the start signal TR1 to the light source driving unit 14. Specifically, after the touch period TP during the active period AP1 and during the display period DP of the active period AP1, the bridging unit 131 generates the start signal TR1 (such as the first start signal TR11) according to the touch information during the touch period TP. After the bridging unit 131 of the processing unit 13 provides the start signal TR1 to the light source driving unit 14, the light source driving unit 14 provides the first scan signal SC1 to the light emitting components 12 according to the start signal TR1. Then, after the light source driving unit 14 provides the first scan signal SC1, the light source driving unit 14 sequentially provides the second scan signal (not shown) … to the Mth scan signal SCM to the light emitting components 12, so that the M groups of light emitting diodes in the light emitting components 12 can emit light sequentially. In some embodiments, the time length for the light source driving unit 14 to provide the first scan signal SC1 to the Mth scan signal SCM to the light emitting components 12 is equal to or less than the time length t2 of the display period DP. Each group of light emitting units 12D of the light emitting components 12 can be sequentially lit in a single display period DP (such as DP1, DP2 … DPN, DP_N+1) to completely provide light to the entire touch display panel 10. In other words, each group of light emitting units 12D will be lit once in a single display period DP.
[0096] Continuing the above, during the entire active period AP1, the touch display driving unit 130 repeatedly provides the touch signal TS during the touch period TP and provides the display signal DS during the display period DP until the active period AP1 ends. It is worth mentioning that during the touch period TP of the active period AP1, the pixel units P (such as pixel electrodes) and the light emitting components 12 in the touch display panel 10 do not operate, while the electrode TE in the touch display panel 10 operates according to the touch signal TS provided by the touch display driving unit 130. On the contrary, during the display period DP of the active period AP1, the pixel units P (such as pixel electrodes) in the touch display panel 10 operate according to the display signal DS provided by the touch display driving unit 130, and the light emitting components 12 operate according to the scan signal SC provided by the light source driving unit 14, while the electrode TE does not operate. In this way, signal interference between these components can be avoided.
[0097] In some embodiments, the number of display periods DP included in one active period AP1 is not limited. For example, one active period AP1 may include 3 to 50 display periods DP, such as 5 to 25 display periods DP, such as 10 to 25 display periods. The number of touch periods TP included in the active period AP1 can be one less than the number of display periods DP. For example, as Figure 4As shown, an active period AP1 includes N touch periods (TP11, TP12... TP1N), and includes N + 1 display periods (DP1, DP2... DPN, DP_N+1). In other words, the active period AP1 can start with a display period (such as DP1) and end with a display period (such as DP_N+1), but the present disclosure is not limited thereto. According to some embodiments, the active period AP1 can start with a touch period and end with a touch period, but the present disclosure is not limited thereto.
[0098] In some embodiments, within the active period AP1, an individual touch period TP can be greater than, less than, or equal to the time length of an individual display period DP, and the present disclosure is not limited thereto. For example, Figure 4 As shown, the time length t1 of the touch period TP11 can be greater than, less than, or equal to the time length t2 of the display period DP2.
[0099] Continuing to refer to Figure 4 , within the frame period F1, different from the active period AP1, during the blank period BP, the touch display driving unit 130 of the processing unit 13 does not provide a display signal DS to the touch display panel 10. At this time, the processing unit 13 can perform the transmission of other types of signals, such as synchronous frame information, audio information, and announcement frame information, etc., but the present disclosure is not limited thereto.
[0100] As Figure 4 shown, within the frame period F1, during the virtual period FTP of the blank period BP, the signal sent by the touch display driving unit 130 of the processing unit 13 can be switched from a high potential to a low potential. However, different from the active period AP1, during the blank period BP, the touch display driving unit 130 of the processing unit 13 does not provide a touch signal TS to the electrode TE in the touch display panel 10, but provides a virtual signal FTS. This virtual signal FTS is not used to drive the electrode TE to actuate, but is used to cause the bridging unit 131 of the processing unit 13 to generate an excitation signal TR2.
[0101] Reference can be made together with Figure 5 , Figure 6A , Figure 6B for the signal schematic diagram between the touch display driving unit 130 and the touch display panel 10. Figure 6A For Figure 5 the enlarged schematic diagram of the area A1 of Figure 6B For Figure 5 the enlarged schematic diagram of the area A2 of Figure 5 , Figure 6A andFigure 6B As shown, during the blank period BP, the touch display driving unit 130 is changed to provide a virtual signal FTS. During the blank period BP, the touch display driving unit 130 does not provide any touch signal TS to the electrode TE in the touch display panel 10. In Figure 5 , the touch period TP11 can be the touch period emitted by the touch display driving unit 130, and can be the touch period measured on the pin of the touch display driving unit 130. The touch signal TS11 can be the signal provided by the touch display driving unit 130 to the touch display panel 10, and can be the signal measured on the electrode TE in the touch display panel 10.
[0102] As described above, by additionally providing the virtual signal FTS during the blank period BP, the present disclosure enables the bridging unit 131 to generate the excitation signal TR2 to drive the light source driving unit 14 and the light emitting component 12 to act during the blank period BP. In this way, it is possible to avoid the problem that the blank period BP of the electronic device 1 is too long, resulting in too long a light-off time and causing the human eye to perceive flicker.
[0103] As Figure 4 shown, in some embodiments, the blank period BP is divided into two time periods by the virtual period FTP of the virtual signal FTS. During the blank period BP, the time length t3 of the time period before the virtual period FTP can be equal to the time length t4 after the virtual period FTP, but the present disclosure is not limited thereto. In other embodiments, the time length t3 can be greater than the time length t4, or the time length t3 can be less than the time length t4. In some embodiments, the time lengths t3 and t4 can be less than the time length of the visual persistence of the human eye. For example, the time lengths t3 and t4 can both be less than, for example, 1.2 ms, 1.1 ms, 1 ms, 0.9 ms, 0.8 ms, 0.7 ms, 0.6 ms, 0.5 ms or any value or any value range between the above values. Accordingly, it is possible to prevent the user from perceiving the flicker of the electronic device 1.
[0104] Referring to Figure 7 , which is a timing schematic diagram of a display electronic device according to other embodiments of the present disclosure. Specifically, Figure 7It is a timing schematic diagram of an electronic device for sensing a touch operation of a user's hand. As shown in the figure, the period during which the light-emitting component 12 is actuated can be referred to as the on period OP, and the period during which the light-emitting component 12 is not actuated can be referred to as the off period CP. During the blank period BP, the bridging unit 131 can be made to emit an excitation signal TR2 by the touch display driving unit 130. After the light source driving unit 14 receives the excitation signal TR2, the light source driving unit 14 can provide a scanning signal to drive the light-emitting component 12 to actuate. For example, the first scanning signal SC1, the second scanning signal SC2, the third scanning signal SC3, the fourth scanning signal SC4, the fifth scanning signal SC5, and the sixth scanning signal SC6 are provided in sequence. In this way, an additional on period OP (labeled as OP7) can be generated within the blank period BP to solve the problem of screen flicker caused by an overly long off period.
[0105] Referring to Figure 8 and Figure 9 , which are respectively a block diagram and a timing schematic diagram of an electronic device according to some further embodiments of the present disclosure. Specifically, Figure 9 It is a timing schematic diagram of an electronic device for sensing a touch operation of an active touch component. As Figure 8 shown, the electronic device 1 includes a touch display panel 10, a light-emitting component 12, a processing unit 13, a light source driving unit 14, and an active sensing component 18, but the present disclosure is not limited thereto. The active sensing component 18 can be an active capacitive sensing component, for example, it can be a stylus. The active sensing component 18 can have a sensing chip. The touch display driving unit 130 emits an uplink signal, and the active sensing component 18 can emit a downlink signal. The uplink signal and the downlink signal can perform data handshaking at a fixed period. The uplink signal can be a touch signal. During the active period AP1, the uplink signal and the downlink signal can perform data handshaking during the touch period TP (including touch periods TP11, TP12... TP1N) in the foregoing embodiments. For example, as Figure 9As shown, during the active period AP1, the uplink signal and the downlink signal perform data handshaking during the touch period TP1N, which is also marked as the data handshaking period IHP. During the blank period BP, the uplink signal and the downlink signal also perform data handshaking during the data handshaking period IHP. During the blank period BP, no display period DP is included. During the active period AP1, the bridging unit 131 can provide a start signal (for example, start signals TR1: TR11 to TR1N) according to the information of the data handshaking period IHP, so that the light-emitting component 12 emits light. During the blank period BP, the processing unit 13 is set to enable the touch display driving unit 130 and the active sensing component 18 to perform data handshaking during the data handshaking period IHP in the blank period BP. Therefore, the bridging unit 131 can provide an excitation signal TR2 according to the information of the data handshaking period IHP, so that the light-emitting component 12 emits light. The light-emitting mode of the light-emitting component 12 can be scanning light emission, which can refer to the content of the foregoing specification and will not be elaborated here.
[0106] is different from Figure 7 the embodiment shown in that in Figure 9 the embodiment of, during the blank period BP, the bridging unit 131 generates the excitation signal TR2 by means of the information of the data handshaking period IHP. In Figure 7 it, during the blank period BP, the bridging unit 131 generates the excitation signal TR2 by means of the virtual signal FTS. In Figure 9 it, the data handshaking period IHP during the blank period BP is also the touch period, that is, during the data handshaking period IHP during the blank period BP, the touch display driving unit 130 can emit an uplink signal, and the uplink signal can be a touch signal.
[0107] In Figure 9 the embodiment shown, during the blank period BP, the uplink signal emitted by the touch display driving unit 130 and the downlink signal emitted by the active sensing component 18 perform data handshaking during the data handshaking period IHP, so that the bridging unit 131 emits the excitation signal TR2. After the light source driving unit 14 receives the excitation signal TR2, the light source driving unit 14 can provide a scanning signal to trigger the light-emitting component 12 to act. For example, the first scanning signal SC1, the second scanning signal SC2, the third scanning signal SC3, the fourth scanning signal SC4, the fifth scanning signal SC5, and the sixth scanning signal SC6 are provided in sequence. In this way, an additional light-on period OP (marked as OP9) can be generated during the blank period BP to solve the problem of screen flickering caused by too long a light-off period.
[0108] In the foregoing, an electronic device, such as a touch display device, has been provided. To this end, the present disclosure further provides a display method for an electronic device, which may include the following steps. It is worth mentioning that some of the operation steps described below may be replaced or omitted, and the order of some of the operation steps is interchangeable. In addition, it should be understood that some of the described steps may be replaced or deleted for other embodiments of the method.
[0109] Step S10: Provide an electronic device, which includes a touch display panel 10 and a light-emitting component 12.
[0110] Step S12: During the frame period F1, cause the touch display panel 10 to display an image, where the frame period F1 includes an active period AP1 and a blank period BP, and the active period AP1 includes a plurality of display periods DP and a plurality of touch periods TP.
[0111] Step S14: During the active period AP1, provide a plurality of start signals TR1 (for example, TR11 to TR1N), and cause the light-emitting component 12 to emit light according to the start signals TR1 (for example, TR11 to TR1N). In some embodiments, during the active period AP1, cause the light-emitting component 12 to perform a first light-emitting scan 41 according to at least one of the start signals TR11 to TR1N.
[0112] Step S16: During the blank period BP, provide an excitation signal TR2, and cause the light-emitting component 12 to emit light according to the excitation signal TR2. In some embodiments, before step S16, during the blank period BP, provide a virtual signal FTS, and provide the excitation signal TR2 according to the virtual signal FTS. In some embodiments, during the blank period BP, cause the light-emitting component to perform a second light-emitting scan 40B according to the excitation signal TR2.
[0113] Specifically, the details of each step and the components that may be adopted can be referred to in the foregoing, and will not be elaborated herein.
[0114] In summary, the present disclosure provides an electronic device and a display method for an electronic device, which solve some technical problems such as insufficient brightness of the display image or image flickering by providing an additional excitation signal during the blank period of the frame period, so that the light-emitting component emits additional light during the blank period.
[0115] The scope of protection of the present disclosure is not limited to the processes, machines, manufactures, compositions of matter, devices, methods, and steps in the specific embodiments described in the specification. Any person skilled in the art can understand from the disclosure of the present disclosure the processes, machines, manufactures, compositions of matter, devices, methods, and steps developed currently or in the future. As long as they can perform substantially the same functions or achieve substantially the same results in the embodiments described herein, they can be used according to the present disclosure. Therefore, the scope of protection of the present disclosure includes the foregoing processes, machines, manufactures, compositions of matter, devices, methods, and steps. Any embodiment or claim of the present disclosure does not have to achieve all the purposes, advantages, and / or features disclosed in the present disclosure.
[0116] The foregoing outlines several embodiments so that those skilled in the art can better understand the viewpoints of the embodiments of the present disclosure. Those skilled in the art should understand that they can design or modify other processes and structures based on the embodiments of the present disclosure to achieve the same purposes and / or advantages as the embodiments introduced herein. Those skilled in the art should also understand that such equivalent processes and structures do not depart from the spirit and scope of the present disclosure, and they can make various changes, substitutions, and replacements without departing from the spirit and scope of the present disclosure.
Claims
1. An electronic device, characterized in that, Comprising: A touch display panel configured to display a picture during a picture period, wherein the picture period includes an active period and a blank period, and the active period includes a plurality of display periods and a plurality of touch periods; A processing unit electrically connected to the touch display panel, wherein the processing unit is configured to provide a plurality of activation signals during the active period and provide an excitation signal during the blank period; A light-emitting component overlapping with the touch display panel; And A light source driving unit electrically connected to the light-emitting component and the processing unit, the light source driving unit being configured to cause the light-emitting component to emit light during the active period according to the plurality of activation signals, and cause the light-emitting component to emit light during the blank period according to the excitation signal.
2. The electronic device according to claim 1, wherein The processing unit includes a touch display driving unit configured to provide a touch signal within at least one of the plurality of touch periods.
3. The electronic device according to claim 2, wherein The processing unit includes a bridging unit. During the active period, the touch display driving unit is configured to transmit touch information of one of the plurality of touch periods to the bridging unit, and the bridging unit is configured to provide the plurality of activation signals based on the touch information.
4. The electronic device according to claim 3, characterized in that, The plurality of touch periods include a first touch period, the plurality of activation signals include a first activation signal, a period of the first activation signal is after the first touch period, and the period of the first activation signal is adjacent to the first touch period.
5. The electronic device according to claim 3, wherein During the blank period, the touch display driving unit is configured to provide a virtual signal, and the bridging unit is configured to provide the excitation signal based on the virtual signal.
6. The electronic device according to claim 5, wherein A period of the excitation signal is after a period of the virtual signal, and the period of the excitation signal is adjacent to the period of the virtual signal.
7. The electronic device according to claim 4, wherein During the active period, the light source driving unit is configured to cause the light-emitting component to perform a first light-emitting scan after the period of the first activation signal.
8. The electronic device according to claim 7, wherein During the blank period, the light source driving unit is configured to cause the light-emitting component to perform a second light-emitting scan after the excitation signal.
9. The electronic device according to claim 7, wherein The plurality of touch periods include a second touch period, and a period of the first light-emitting scan is between the period of the first activation signal and the second touch period.
10. The electronic device according to claim 2, wherein Further comprising an active sensing component, wherein the processing unit is configured to cause the touch display driving unit and the active sensing component to perform data handshaking during a data handshaking period in the blank period.
11. A display method, characterized in that, Comprising: Providing an electronic device, the electronic device including a touch display panel and a light-emitting component; Causing the touch display panel to display a picture during a picture period, wherein the picture period includes an active period and a blank period, and the active period includes a plurality of display periods and a plurality of touch periods; During the active period, providing a plurality of activation signals and causing the light-emitting component to emit light according to the plurality of activation signals; And During the blank period, providing an excitation signal and causing the light-emitting component to emit light according to the excitation signal.
12. The display method according to claim 11, wherein, It includes: During the blank period, providing a virtual signal and providing the excitation signal based on the virtual signal.
13. The display method according to claim 11, wherein It includes: During the active period, causing the light-emitting component to perform a first light-emitting scan according to at least one of the plurality of activation signals.
14. The display method according to claim 11, wherein, It includes: During this blank period, a second light emission scan is performed on the light emitting component according to the excitation signal.