Display device and driving method thereof

Abstract

The present disclosure provides a display device and a driving method thereof. The display device includes a light emitting module and a display panel. The light emitting module includes an optical sensor and a plurality of light emitting diodes. The plurality of light emitting diodes are adjacent to the optical sensor. The plurality of light emitting diodes emit red light, green light and blue light. The plurality of light emitting diodes dynamically convert the brightness of the red light, the green light and the blue light. The display panel is disposed on the light emitting module. The display device disclosed in the present disclosure can display in full screen or have a higher resolution.

Description

Technical Field

[0001] The present disclosure relates to a display device and a driving method thereof, and more particularly to a display device capable of full-screen display and having a higher resolution and a driving method thereof. Background Art

[0002] With the rapid development of electronic products, the display technology used in electronic products has also been continuously improved. Electronic devices used for display are constantly improving towards larger screen displays or higher resolution display effects. Summary of the invention

[0003] The present disclosure is directed to a display device that can display in full screen or has a higher resolution.

[0004] The present disclosure is directed to a driving method of a display device, which can be used to drive the above-mentioned display device.

[0005] According to an embodiment of the present disclosure, a display device includes a light emitting module and a display panel. The light emitting module includes an optical sensor and a plurality of light emitting diodes. The plurality of light emitting diodes are adjacent to the optical sensor. The plurality of light emitting diodes emit red light, green light, and blue light. The plurality of light emitting diodes dynamically convert the brightness of the red light, the green light, and the blue light. The display panel is disposed on the light emitting module.

[0006] According to an embodiment of the present disclosure, a driving method of a display device includes the following steps. First, a display device is provided. The display device includes an optical sensor, a plurality of light-emitting diodes, and a display panel. The plurality of light-emitting diodes are adjacent to the optical sensor and include a plurality of first light-emitting diodes, a plurality of second light-emitting diodes, and a plurality of third light-emitting diodes. The plurality of first light-emitting diodes, the plurality of second light-emitting diodes, and the plurality of third light-emitting diodes each emit light of a different color. The display panel is disposed on the plurality of light-emitting diodes. Next, a frame time is generated. When the display device is in a display state, the frame time includes a first frame time, a second frame time, a third frame time, and a fourth frame time. The second frame time is subsequent to the first frame time. The third frame time is subsequent to the second frame time. The fourth frame time is subsequent to the third frame time. When the optical sensor does not perform a function, the plurality of first light-emitting diodes, the plurality of second light-emitting diodes, and the plurality of third light-emitting diodes are sequentially turned on one of them and the other two are turned off in the first frame time, the second frame time, and the third frame time. The plurality of first light-emitting diodes, the plurality of second light-emitting diodes, and the plurality of third light-emitting diodes are turned off in the fourth frame time.

[0007] In summary, since the display device of the disclosed embodiment uses a direct-lit light-emitting module and utilizes light-emitting diodes to emit red light, green light, and blue light respectively so that the display panel presents a color image, the display panel of the present embodiment does not need to be additionally provided with a color filter layer, thereby providing a higher light transmittance to the optical sensor. Therefore, compared with the existing display device using an edge-lit light-emitting module or a color filter layer, the display device of the present embodiment can have a higher brightness or a higher resolution. In addition, the light-emitting diodes in the first zone and the second zone can be turned on or off respectively by using regional dimming and / or color sequential methods, thereby achieving a full-screen display effect when the optical sensor is not performing its function. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure.

[0009] Figure 1 A schematic top view of a display panel and a light-emitting module of a display device according to an embodiment of the present disclosure;

[0010] Figure 2 for Figure 1 A schematic cross-sectional view of a display device along a section line AA';

[0011] Figure 3 A schematic diagram of color sequence conversion according to an embodiment of the present disclosure;

[0012] Figure 4A The image of the display panel of the display device according to one embodiment of the present disclosure when the optical sensor does not perform a function;

[0013] Figure 4B This is a picture of a display panel of a display device according to an embodiment of the present disclosure when the optical sensor performs a function.

[0014] Description of Figure Numbers

[0015] 10: display device;

[0016] 100: light emitting module;

[0017] 110: substrate;

[0018] 111: District 1;

[0019] 112: District 2;

[0020] 113: District 3;

[0021] 120: optical sensor;

[0022] 130: light emitting diode;

[0023] 131: a first light emitting diode;

[0024] 1311, 1321, 1331: light;

[0025] 132: a second light emitting diode;

[0026] 133: a third light emitting diode;

[0027] 200: display panel;

[0028] 210: first substrate;

[0029] 220: display medium;

[0030] 230: second substrate;

[0031] 240: optical sensing area;

[0032] 241, 242, 251: Screen;

[0033] 250: display area;

[0034] 260: first polarizing layer;

[0035] 270: second polarizing layer;

[0036] 300: frame time;

[0037] 301: first frame time;

[0038] 302: second frame time;

[0039] 303: Third frame time;

[0040] 304: Fourth frame time. DETAILED DESCRIPTION

[0041] The present disclosure can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that in order to make it easier for readers to understand and for the simplicity of the drawings, the multiple drawings in the present disclosure only depict a portion of the electronic device, and the specific components in the drawings are not drawn according to the actual scale. In addition, the number and size of each component in the figure are only for illustration and are not intended to limit the scope of the present disclosure.

[0042] In the following description and claims, the words “including” and “comprising” are open-ended words, and thus should be interpreted as meaning “including but not limited to…”.

[0043] A structure (or layer, component, substrate) described in the present disclosure is located on another structure (or layer, component, substrate), which may mean that the two structures are adjacent and directly connected, or may mean that the two structures are adjacent but not directly connected, and the indirect connection means that there is at least one intermediate structure (or intermediate layer, intermediate component, intermediate substrate, intermediate interval) between the two structures, the lower surface of one structure is adjacent to or directly connected to the upper surface of the intermediate structure, and the upper surface of the other structure is adjacent to or directly connected to the lower surface of the intermediate structure, and the intermediate structure can be composed of a single-layer or multi-layer physical structure or non-physical structure, without limitation. In the present disclosure, when a certain structure is arranged "on" another structure, it may mean that the certain structure is "directly" on the other structure, or that the certain structure is "indirectly" on the other structure, that is, at least one structure is sandwiched between the certain structure and the other structure.

[0044] Although the terms first, second, third, etc. can be used to describe a variety of components, the components are not limited to these terms. These terms are only used to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but may be replaced by first, second, third, etc. according to the order of the components declared in the claims. Therefore, in the following description, the first component may be the second component in the claims.

[0045] The electronic device disclosed herein may include, for example, a display device, an antenna device, a sensing device, a touch display, a curved display, or a free shape display, and may also be a bendable or flexible spliced ​​electronic device, but is not limited thereto. The electronic device may include, for example, a light emitting diode, a liquid crystal, fluorescence, phosphorescence, other suitable display media, or a combination of the foregoing, but is not limited thereto. The light emitting diode may include, for example, an organic light emitting diode (OLED), an inorganic light emitting diode (LED), a sub-millimeter light emitting diode (mini LED), a micro LED, or a quantum dot light emitting diode (QD, which may be, for example, QLED, QDLED), or other suitable materials or any combination of the foregoing, but is not limited thereto. The antenna device may be, for example, a liquid crystal antenna, but is not limited thereto. It should be noted that the electronic device may be any combination of the foregoing, but is not limited thereto. In addition, the appearance of the electronic device can be rectangular, circular, polygonal, with curved edges or other suitable shapes. The electronic device can have peripheral systems such as a drive system, a control system, a light source system, a shelf system, etc. to support the display device or the antenna device. The following takes the display device as an example.

[0046] It should be noted that the following embodiments may replace, reorganize, or mix features in several different embodiments to complete other embodiments without departing from the spirit of the present disclosure. Features between embodiments may be mixed and matched as long as they do not violate the spirit of the invention or conflict with each other.

[0047] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0048] Figure 1 It is a top view schematic diagram of a display panel and a light emitting module of a display device according to an embodiment of the present disclosure. Figure 2 for Figure 1 A schematic cross-sectional view of a display device along section line AA'. Figure 3 FIG. 4 is a schematic diagram of color sequence conversion according to an embodiment of the present disclosure. Figure 4A This is a picture of a display panel of a display device according to an embodiment of the present disclosure when the optical sensor does not perform a function. Figure 4BThis is a picture of a display panel of a display device according to an embodiment of the present disclosure when the optical sensor performs a function.

[0049] Please refer to Figure 1 and Figure 2 The display device 10 of this embodiment includes a light emitting module 100 and a display panel 200. The light emitting module 100 includes a substrate 110, an optical sensor 120 and a plurality of light emitting diodes 130. The plurality of light emitting diodes 130 are disposed around the optical sensor 120. The plurality of light emitting diodes 130 can emit red light, green light and blue light respectively, and the plurality of light emitting diodes 130 can dynamically convert the brightness of the red light, the green light and the blue light. The so-called dynamic conversion of the brightness of the red light, the green light and the blue light means that the brightness of different light emitting diodes can be adjusted in sequence, but the color sequence is not limited. The present disclosure exemplifies that the substrate 110 has a first area 111, a second area 112 and a third area 113. The first area 111 is adjacent to the third area 113, the second area 112 is adjacent to the first area 111, and the first area 111 is located between the third area 113 and the second area 112. In another embodiment, the first area 111 may selectively surround the third area 113, the second area 112 may selectively surround the first area 111, and the first area 111 is located between the third area 113 and the second area 112. The above division of the substrate 110 into three areas is only an example of the present disclosure, and there may be different division methods, for example, the substrate 110 may be divided into a plurality of first areas 111 and a plurality of second areas 112, and the first areas 111 and the second areas 112 are periodically alternately arranged, and the shapes and sizes of the divided areas are not limited, and may be changed according to the overall condition of the visual display device 10, as long as they are suitable for the method of the present embodiment.

[0050] In the present embodiment, the substrate 110 may be a transparent substrate, a metal substrate, or a graphite substrate. The transparent substrate may be a transparent plastic substrate or a glass substrate. For example, the material of the substrate 110 includes glass, quartz, sapphire, ceramic, polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), fiberglass, ceramic, other suitable substrate materials, or a combination thereof, but is not limited thereto.

[0051] The optical sensor 120 is disposed in the third area 113. The third area 113 may be, for example, an opening so that the optical sensor 120 is embedded in the substrate 110, but the invention is not limited thereto. In some embodiments, the optical sensor 120 may be fixed in the third area 113 of the substrate 110. In another embodiment, the optical sensor 120 may be located in the display panel 200. In this embodiment, the optical sensor 120 is, for example, a camera or a fingerprint sensor, but the invention is not limited thereto.

[0052] The plurality of light emitting diodes 130 are adjacent to the optical sensor 120 and are disposed in the first area 111 and the second area 112 of the substrate 110. The plurality of light emitting diodes 130 can emit red light, green light, and blue light, respectively, and the plurality of light emitting diodes 130 can dynamically convert the brightness of the red light, the green light, and the blue light. Specifically, in the present embodiment, the plurality of light emitting diodes 130 can further include a plurality of first light emitting diodes 131, a plurality of second light emitting diodes 132, and a plurality of third light emitting diodes 133. That is, the plurality of first light emitting diodes 131, the plurality of second light emitting diodes 132, and the plurality of third light emitting diodes 133 are all disposed in the first area 111 and the second area 112 of the substrate 110. In the present embodiment, the plurality of first light emitting diodes 131 can emit red light, the plurality of second light emitting diodes 132 can emit green light, and the plurality of third light emitting diodes 133 can emit blue light, but the present invention is not limited thereto. In some embodiments, the first LED can also emit green light or blue light, the second LED can also emit red light or blue light, and the third LED can also emit red light or green light, as long as the first LED, the second LED and the third LED emit lights of different colors respectively.

[0053] In the present embodiment, the display panel 200 is arranged on the light emitting module 100 so that the light emitting module 100 can emit light toward the display panel 200 and present a picture on the display panel 200. For example, the picture can be a dynamic display picture or a static display picture. Therefore, the light emitting module 100 of the present embodiment belongs to a direct-type light emitting module. The display panel 200 includes a first polarizing layer 260, a first substrate 210, a display medium 220, a second substrate 230 and a second polarizing layer 270. The first substrate 210 and the second substrate 230 are arranged opposite to each other, and the display medium 220 is located between the first substrate 210 and the second substrate 230. The first substrate 210 is located between the second substrate 230 and the light emitting module 100. In one embodiment of the present disclosure, the first substrate 210 includes a pixel structure, and the display medium 220 includes liquid crystal, but is not limited thereto. In another embodiment of the present disclosure, the second substrate 230 may include a pixel structure, and the display medium 220 includes liquid crystal, but is not limited thereto. The display panel 200 may further include a viewing angle compensation layer (not shown) and other layers suitable for display.

[0054] In the present embodiment, the display panel 200 may not include a color filter layer, thereby improving the transmittance of the display panel 200 to provide a higher transmittance to the optical sensor 120. The transmittance is defined as the percentage of the brightness of the light emitted by the plurality of light emitting diodes 130 after passing through the second polarizing layer 270 divided by the brightness of the light emitted by the plurality of light emitting diodes 130 before entering the first polarizing layer 260. In the present embodiment, the transmittance of the display panel 200 is, for example, about 30%, but is not limited thereto. Since the display device 10 of the present embodiment does not need to additionally set up a color filter layer, but uses a direct-type light-emitting module and utilizes a plurality of light emitting diodes 130 to emit red light, green light and blue light respectively to make the display panel 200 present a picture, therefore, compared with the existing display device that uses a color filter layer to present a picture, the display device 10 of the present embodiment may have a higher resolution. In the present embodiment, the display panel 200 may also selectively include a black matrix layer (Blackmatrix, BM), but is not limited thereto.

[0055] In the present embodiment, the display panel 200 further includes an optical sensing area 240 and a display area 250. The optical sensing area 240 is disposed corresponding to the optical sensor 120. The display area 250 is adjacent to the optical sensing area 240, and the display area 250 is disposed corresponding to the first area 111 and the second area 112 of the substrate 110. In other words, the light emitted by the plurality of light emitting diodes 130 located in the first area 111 and the second area 112 of the substrate 110 can present a picture 251 in the display area 250 of the display panel 200. In one embodiment of the present disclosure, the red light emitted by the plurality of first light emitting diodes 131 in the first area 111 and the second area 112, the green light emitted by the plurality of second light emitting diodes 132, and the blue light emitted by the plurality of third light emitting diodes 133 can make the display area 250 of the display panel 200 present a picture 251.

[0056] In addition, since the light emitting module 100 of the present embodiment is a direct-lit light emitting module, unlike the existing side-lit light emitting module, the light emitting module 100 of the present embodiment can achieve high light transmittance characteristics, and can also use multiple light emitting diodes 130 to control the light emission pattern to increase the irradiation range of the multiple light emitting diodes 130 on the display panel 200. For example, by adjusting the cone angles of the multiple light emitting diodes 130, the overlapping range of the light emitted by the multiple light emitting diodes 130 can be controlled. Please refer to Figure 2, the light 1331 emitted by the plurality of third LEDs 133 located on the left side of the third area 113 can not only irradiate the corresponding position of the display panel 200 above it, but also irradiate the optical sensing area 240 of the display panel 200 above the third area 113. Similarly, the light 1311 emitted by the plurality of first LEDs 131 located on the right side of the third area 113 can not only irradiate the corresponding position of the display panel 200 above it, but also irradiate the optical sensing area 240 of the display panel 200 above the third area 113. Therefore, in the present embodiment, since the first area 111 is adjacent to and adjacent to the third area 113, and the plurality of LEDs 130 located in the first area 111 can also control the light type, the red light emitted by the plurality of first LEDs 131 in the first area 111, the green light emitted by the plurality of second LEDs 132, and the blue light emitted by the plurality of third LEDs 133 can irradiate the optical sensing area 240 above the third area 113. Thus, when the optical sensor 120 is not performing a function, the optical sensing area 240 of the display panel 200 can also present the image 241, thereby achieving the purpose of full-screen display. Figure 4A At this time, the image 241 of the optical sensing area 240 of the display panel 200 and the image 251 of the display area 250 can be combined to present a continuous image. In other words, the image 241 of the optical sensing area 240 and the image 251 of the display area 250 can match each other.

[0057] However, when the optical sensor 120 is to perform a function, such as when the camera performs a photo taking, video recording, or fingerprint recognition function, the image 241 of the optical sensing area 240 is turned off, or the optical sensing area 240 presents a white image, but the image 251 of the display area 250 is not affected at the same time, so that the optical sensor 120 can perform its function and the display area 250 can still present the image 251. In order to achieve the above requirements, the display device 10 of this embodiment also uses a local dimming method and / or a color sequential method, which are described as follows.

[0058] The display device 10 of the present embodiment can utilize regional dimming to control the brightness of red light, green light, and blue light emitted by the plurality of light-emitting diodes 130 located in the first zone 111 and the second zone 112. That is, the regional dimming method can be utilized to control the opening or closing of the plurality of first light-emitting diodes 131, the plurality of second light-emitting diodes 132, and the plurality of third light-emitting diodes 133 in the first zone 111 and the second zone 112 in a partitioned manner, thereby controlling the brightness of the red light, green light, and blue light in the first zone 111 and the second zone 112. For example, when the optical sensor 120 performs a function, the regional dimming method can be utilized to turn off the plurality of light-emitting diodes 130 in the first zone 111, so that the optical sensing area 240 of the display panel 200 presents a picture 242. In the present embodiment, the picture 242 can be a black picture, but the display area 250 can still present a picture 251, such as Figure 4B In one embodiment, the above-mentioned picture 242 can be a black picture, but it is not limited thereto. That is to say, in some embodiments, the above-mentioned picture 242 can be adjusted according to the state of the optical sensor 120 when performing the function, so that the above-mentioned picture 242 can also be a red picture or a blue picture, or a picture of other different colors or a combination of different colors, as long as it can achieve the function disclosed herein, it can become the picture 242.

[0059] In addition, refer to Figure 3 , the driving method of the display device 10 of the present embodiment may also adopt a color sequential method, so that the multiple light-emitting diodes 130 in the first area 111 and the second area 112 can emit red light, green light and blue light in a time-sharing manner. Specifically, in an interval of a frame time 300, by dividing the frame time 300 into a plurality of equal parts, the multiple light-emitting diodes 130 in the first area 111 and the second area 112 can sequentially emit light of different colors. For example, the frame time 300 is divided into three equal parts, and the multiple light-emitting diodes 130 in the first area 111 and the second area 112 sequentially emit three kinds of light in the three equal parts, such as red light, green light and blue light. In one embodiment of the present disclosure, Figure 3 As shown, the frame time 300 can be divided into four equal parts, first the first frame time 301; then the second frame time 302, which is subsequent to the first frame time 301; then the third frame time 303, which is subsequent to the second frame time 302; and then the fourth frame time 304, which is subsequent to the third frame time 303. Therefore, the plurality of light emitting diodes 130 in the first area 111 and the second area 112 can sequentially emit four kinds of light, such as red light, green light, blue light and white light, and use the visual persistence effect of the human eye to produce a mixed color effect. Figure 4A and Figure 4BIn this embodiment, when the optical sensor 120 does not perform a function, the plurality of first light emitting diodes 131, the plurality of second light emitting diodes 132, and the plurality of third light emitting diodes 133 located in the first area 111 may sequentially turn on one of them and turn off the other two in the first frame time 301, the second frame time 302, and the third frame time 303, and turn off the plurality of first light emitting diodes 131, the plurality of second light emitting diodes 132, and the plurality of third light emitting diodes 133 located in the first area 111 in the fourth frame time 304. In other words, in the frame time 300, red light, green light, blue light, and no light may be emitted in sequence, so that the picture 241 of the optical sensing area 240 of the display panel 200 and the picture 251 of the display area 250 present a continuous picture, such as Figure 4A However, when the optical sensor 120 performs a function, the first light emitting diodes 131, the second light emitting diodes 132, and the third light emitting diodes 133 are turned off during the first frame time 301, the second frame time 302, and the third frame time 303, and the first light emitting diodes 131, the second light emitting diodes 132, and the third light emitting diodes 133 located in the first area 111 are turned on at the same time during the fourth frame time 304, so that the optical sensing area 240 of the display panel 200 can present a substantially white screen, as shown in FIG. Figure 4B shown.

[0060] For example, if Figure 3As shown, in the driving method of the display device 10 of the present embodiment, a frame time 300 (for example, 16 ms, but not limited thereto) of the first area 111 is first divided into four equal parts, and each equal part is 4 ms. For example, when the display device 10 is in the display state, a frame time 300 (16 ms) is generated, and the frame time 300 is divided into a first frame time 301 (4 ms), a second frame time 302 (4 ms), a third frame time 303 (4 ms), and a fourth frame time 304 (4 ms). Among them, the second frame time 302 (4 ms) is subsequent to the first frame time 301 (4 ms), the third frame time 303 (4 ms) is subsequent to the second frame time 302 (4 ms), and the fourth frame time 304 (4 ms) is subsequent to the third frame time 303 (4 ms). Next, when the optical sensor 120 is not performing a function, the plurality of first LEDs 131 are turned on and the plurality of second LEDs 132 and the plurality of third LEDs 133 are turned off at the first frame time 301 (4ms) to emit red light 1311; the plurality of second LEDs 132 are turned on and the plurality of first LEDs 131 and the plurality of third LEDs 133 are turned off at the second frame time 302 (4ms) to emit green light 1321; the plurality of third LEDs 133 are turned on and the plurality of first LEDs 131 and the plurality of second LEDs 132 are turned off at the third frame time 303 (4ms) to emit blue light 1331; the plurality of first LEDs 131, the plurality of second LEDs 132 and the plurality of third LEDs 133 are turned off at the fourth frame time 304 (4ms). Then, the red light 1331, the green light 1321, the blue light 1331 and no light are emitted periodically in the above order to provide the optical sensing area 240 of the display panel 200 with a picture 241. The picture 241 and the picture 251 provided by the display area 250 can present a continuous picture to achieve the purpose of full-screen display, such as Figure 4A However, when the optical sensor 120 performs a function, the first light emitting diodes 131, the second light emitting diodes 132, and the third light emitting diodes 133 are all turned off during the first frame time 301 (4ms), the second frame time 302 (4ms), and the third frame time 303 (4ms); the first light emitting diodes 131, the second light emitting diodes 132, and the third light emitting diodes 133 are turned on during the fourth frame time 304 (4ms), so that the image 242 of the optical sensing area 240 of the display panel 200 can present a white image, so that the optical sensor 120 can perform its function, as shown in FIG. Figure 4B shown.

[0061] In the present embodiment, a frame time of the second area 112 is evenly divided into three equal parts (red light, green light and blue light). Therefore, when the optical sensor 120 performs a function or does not perform its function, the plurality of first light emitting diodes 131, the plurality of second light emitting diodes 132 and the plurality of third light emitting diodes 133 located in the second area 112 can periodically turn on one of them and turn off the other two in sequence to emit red light, green light and blue light in sequence, so that the display area 250 of the display panel 200 presents the picture 251. For example, a frame time of the second area 112 (for example, 16ms, but not limited thereto) is evenly divided into three equal parts, and each equal part is 16 / 3ms. For example, the frame time 300 is divided into a first frame time 301 (16 / 3ms), a second frame time 302 (16 / 3ms) and a third frame time 303 (16 / 3ms). Next, in the first frame time 301 (16 / 3ms), the plurality of first LEDs 131 are turned on and the plurality of second LEDs 132 and the plurality of third LEDs 133 are turned off to emit red light; in the second frame time 302 (16 / 3ms), the plurality of second LEDs 132 are turned on and the plurality of first LEDs 131 and the plurality of third LEDs 133 are turned off to emit green light; in the third frame time 303 (16 / 3ms), the plurality of third LEDs 133 are turned on and the plurality of first LEDs 131 and the plurality of second LEDs 132 are turned off to emit blue light. Next, red light, green light and blue light are periodically emitted in sequence according to the above sequence, so that the display area 250 of the display panel 200 presents the picture 251, as shown in FIG. Figure 4A and Figure 4B shown.

[0062] In some embodiments, the optical sensor 120 may be a camera. When performing a photo taking function, if the brightness of a certain wavelength band of ambient light entering the optical sensor 120 is low or weak, the brightness of the wavelength band corresponding to the multiple light emitting diodes 130 in the first area 111 may be increased by using a regional dimming or color sequential method to compensate for the intensity of light entering from the outside. For example, when the brightness of the incident blue light of the ambient light is relatively weak, the brightness of the blue light emitted by the multiple third light emitting diodes 133 in the first area 111 may be increased by using a regional dimming or color sequential method, or in the example Figure 3 The third frame time 303 of the embodiment turns on the appropriate blue light brightness, and reduces or turns off the brightness of the red light emitted by the plurality of first LEDs 131 and the brightness of the green light emitted by the plurality of second LEDs 132. In another situation of the present embodiment, if the light intensity of the ambient light entering the optical sensor 120 is sufficient, the plurality of LEDs 130 in the first area 111 can be turned off during the first frame time 301, the second frame time 302, the third frame time 303 and the fourth frame time 304.

[0063] In addition, in another embodiment, when the optical sensor 120 is used for fingerprint recognition, the color sequence method can be used to make the plurality of LEDs 130 in the first area 111 emit white light in most of the frame time 300. For example, the fourth frame time 304 can occupy one-third of the frame time 300, and the first frame time 301, the second frame time 302, and the third frame time 303 each occupy two-ninths of the frame time 300. When the optical sensor 120 performs fingerprint recognition, the plurality of LEDs 130 in the first area 111 can be turned off in the first frame time 301, the second frame time 302, and the third frame time 303, and the plurality of LEDs 130 in the first area 111 can be turned on in the fourth frame time 304.

[0064] In addition, in another embodiment, when the optical sensor 120 is used to detect external indications, such as detecting laser pen indications, the brightness of the multiple LEDs 130 in the first area 111 can be reduced by using regional dimming or color sequential method to facilitate the optical sensor 120 to detect external indications.

[0065] In summary, since the display device of the disclosed embodiment uses a direct-type light-emitting module as an example, and uses light-emitting diodes to emit red light, green light, and blue light respectively to make the display panel present a color picture, the display panel of the present embodiment does not need to be additionally provided with a color filter layer, thereby providing maximum transmittance to the optical sensor. Therefore, compared with the existing display device using an edge-type light-emitting module or a color filter layer, the display device of the present embodiment can have a higher brightness or a higher resolution. In addition, the opening and / or closing of multiple light-emitting diodes can be separately controlled by using regional dimming and / or color sequence methods, thereby achieving a full-screen display effect when the optical sensor does not perform a function. The direct-type light-emitting module can also be replaced by other light-emitting devices that can emit red light, green light, and blue light respectively, which is not limited here.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A display device, characterized in that: include: Lighting module, comprising: Optical sensors; a substrate comprising a first region; and a plurality of light emitting diodes, adjacent to the optical sensor and disposed in the first area, wherein the plurality of light emitting diodes emit red light, green light, and blue light, and the plurality of light emitting diodes dynamically convert the brightness of the red light, the green light, and the blue light; and A display panel is disposed on the light emitting module and comprises: an optical sensing area, arranged corresponding to the optical sensor; and A display area surrounds the optical sensing area and is arranged corresponding to the first area, Wherein, the plurality of light emitting diodes include: A plurality of first light emitting diodes, emitting the red light; a plurality of second light emitting diodes, emitting the green light; and A plurality of third light emitting diodes, emitting the blue light, Wherein, the frame time of the first zone includes: First frame time; A second frame time, subsequent to the first frame time; A third frame time, subsequent to the second frame time; and The fourth frame time is subsequent to the third frame time. When the optical sensor performs a function, the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs located in the first area are turned off during the first frame time, the second frame time, and the third frame time, and the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs located in the first area are turned on simultaneously during the fourth frame time.

2. The display device according to claim 1, characterized in that The substrate further includes a second region and a third region, wherein the first region is adjacent to the third region, the second region is adjacent to the first region, and the first region is located between the third region and the second region. The plurality of light emitting diodes are also arranged in the second area, and the display area is arranged corresponding to the second area.

3. The display device according to claim 2, characterized in that The first LEDs, the second LEDs and the third LEDs located in the second area are sequentially turned on one of them and turned off the other two during the frame time, so that the display area of ​​the display panel presents a second picture.

4. The display device according to claim 3, characterized in that When the optical sensor is not performing a function, the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs located in the first area are sequentially turned on one of them and turned off the other two during the first frame time, the second frame time, and the third frame time, and the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs in the first area are turned off during the fourth frame time.

5. The display device according to claim 4, characterized in that: The first image of the optical sensing area of ​​the display panel and the second image of the display area present continuous images.

6. A method for driving a display device, characterized in that: include: Provided is a display device, comprising: Optical sensors; a plurality of light emitting diodes, adjacent to the optical sensor, and including a plurality of first light emitting diodes, a plurality of second light emitting diodes, and a plurality of third light emitting diodes, wherein the plurality of first light emitting diodes, the plurality of second light emitting diodes, and the plurality of third light emitting diodes respectively emit light of a different color; and A display panel is disposed on the plurality of light emitting diodes; and Generate a frame time, when the display device is in a display state, the frame time includes: First frame time; A second frame time, subsequent to the first frame time; A third frame time, subsequent to the second frame time; and The fourth frame time is subsequent to the third frame time. Wherein, when the optical sensor is not performing a function, one of the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs is turned on and the other two are turned off in sequence during the first frame time, the second frame time, and the third frame time, and during the fourth frame time, the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs are turned off.

7. The method for driving a display device according to claim 6, wherein: Also includes: When the optical sensor performs a function, the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs are turned off at the first frame time, the second frame time, and the third frame time, and the plurality of first LEDs, the plurality of second LEDs, and the plurality of third LEDs are turned on at the fourth frame time.

8. The method for driving a display device according to claim 6, wherein: Also includes: Providing a first image in an optical sensing area, wherein the optical sensing area is located in the display panel; and Providing a second image in a display area, wherein the display area is disposed adjacent to the optical sensing area; The first picture and the second picture are combined into a continuous picture.

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