Display device

Abstract

The present invention discloses a display device having a display area, which includes a backlight module and a processing unit. The backlight module is provided with M light-emitting unit groups corresponding to the display area, where M is an integer greater than 1; the processing unit is electrically connected to the backlight module. When in use, a first area is selected on the display area, and the processing unit determines N light-emitting unit groups corresponding to the first area according to the first area, and controls the brightness of the N light-emitting unit groups to increase, where N is an integer greater than 1. The display device of the present invention controls the brightness of the light-emitting unit group corresponding to the designated area through the regional dimming function of the backlight module, thereby enhancing the lighting of the target area (such as a table and peripheral equipment thereon), and facilitating the user's operation. In addition, a dimming layer can be further used to realize the deflection of light toward the target area, so as to further enhance the amount of light directed to the target area, and facilitate the user's operation in a dim environment.

Description

Technical Field

[0001] The present invention relates to a display device, and in particular to a display device that can provide lighting function. Background Art

[0002] With the advancement of technology, consumers have higher and higher requirements for displays. When using a screen in a dim environment, the keyboard or objects in front of the screen are not easily visible due to insufficient light. In order to solve this problem, the prior art proposes to install a screen light above the screen, but the cost is relatively high. In addition, there is also a method of adding a lighting lamp below the screen, but the borders of current displays are getting narrower and thinner, and the space for installing lighting lamps is quite limited. In addition, there is also a method of using the keyboard to enhance the reflection of the screen light so that the user can see the keyboard clearly, but it is not suitable for all peripheral devices.

[0003] Based on this, how to provide a display device that can provide lighting function has become one of the key issues in the industry. Summary of the invention

[0004] The object of the present invention is to provide a device which can provide lighting function.

[0005] In order to achieve the above-mentioned object, the present invention provides a display device having a display area, which includes a backlight module and a processing unit. The backlight module is provided with M light-emitting unit groups corresponding to the display area, where M is an integer greater than 1; the processing unit is electrically connected to the backlight module; when in use, a first area is selected on the display area, and the processing unit determines N light-emitting unit groups corresponding to the first area according to the first area, and controls the brightness of the N light-emitting unit groups to increase, where N is an integer greater than 1, and N≤M.

[0006] As an optional technical solution, after the first area is selected in the display area, a coordinate value range of the first area is determined and the corresponding N light-emitting unit groups are determined according to the coordinate value range.

[0007] As an optional technical solution, the display device has a first side edge. When the display device is placed on a table, the first side edge is adjacent to the table surface, and the first area is adjacent to the first side edge.

[0008] As an optional technical solution, the display device also includes a first dimming layer, which is arranged on the backlight module. The first dimming layer is electrically connected to the processing unit. After the first area is selected in the display area, the processing unit determines a second area on the first dimming layer corresponding to the first area. When the light emitted by the N light-emitting unit groups and propagating along the first direction passes through the second area, at least part of the light is deflected and changed to propagate along the second direction. The first direction forms an acute angle with the first direction.

[0009] As an optional technical solution, when the display device is placed on a table, the first direction is parallel to the table, and the second direction is inclined toward the table.

[0010] As an optional technical solution, the second area of ​​the first dimming layer is provided with a reflective component, a refractive component or a lens component corresponding to the N light-emitting unit groups.

[0011] As an optional technical solution, after the processing unit determines the second area on the first dimming layer corresponding to the first area, the processing unit controls the second area of ​​the first dimming layer to be in a foggy state and controls other areas of the first dimming layer to be in a transparent state.

[0012] As an optional technical solution, the first dimming layer is a PDLC layer and at least covers a portion of the display area.

[0013] As an optional technical solution, the first dimming layer includes P dimming components, where P is an integer greater than 1; the P dimming components are arranged on the backlight module at a first inclination angle. After selecting the first area on the display area, the processing unit determines the Q dimming components included in the second area and controls the Q dimming components to be in a foggy state, where Q is an integer greater than 1, and Q≤P.

[0014] In addition, the present invention also proposes a display device having a display area, which includes a backlight module and a first dimming layer. The backlight module is provided with a plurality of light-emitting unit groups corresponding to the display area, and the plurality of light-emitting unit groups are divided into a first light-emitting unit group and a second light-emitting unit group; the first dimming layer is provided on the backlight module, and the first dimming layer is provided with a plurality of dimming components corresponding to the first light-emitting unit group; when in use, at least part of the light emitted by the first light-emitting unit group is deflected when passing through the plurality of dimming components, and the light emitted by the second light-emitting unit group is normally emitted from the display device.

[0015] The display device of the present invention uses the regional dimming function of the backlight module to adjust the brightness of the light-emitting unit group corresponding to the designated area, thereby enhancing the lighting of the target area (such as a table and the peripheral equipment thereon) to facilitate the user's operation. In addition, a dimming layer can be further used to achieve the deflection of light toward the target area to further increase the amount of light directed to the target area, facilitating the user's operation in a dim environment.

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a first embodiment of a display device of the present invention;

[0018] Figure 2 for Figure 1 a left side view of the middle display device;

[0019] Figure 3 for Figure 1 A front view of the backlight module;

[0020] Figure 4 It is a left side view of a second embodiment of a display device of the present invention;

[0021] Figure 5 It is a left side view of a third embodiment of a display device of the present invention;

[0022] Figure 6 It is a left side view of a fourth embodiment of a display device of the present invention;

[0023] Figure 7 It is a left side view of a fifth embodiment of a display device of the present invention;

[0024] Figure 8 It is a left side view of a sixth embodiment of a display device of the present invention;

[0025] Fig. 9 for Figure 8 Front view of the backlight module. DETAILED DESCRIPTION

[0026] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0027] Please refer to Figures 1 to 3 , Figure 1 is a schematic diagram of a first embodiment of a display device of the present invention; Figure 2 for Figure 1 a left side view of the middle display device; Figure 3 for Figure 1 Front view of the backlight module. The display device 100 of the present invention includes a display panel 110, a backlight module 120 and a processing unit (not shown). The backlight module 120 provides a backlight source to the display panel 110 so that the display panel 110 can display, so that the display device 100 has a display area 101. In actual operation, the display panel 110 is arranged on the backlight module 120. The backlight module 120 has a plurality of light-emitting components 121 (such as LEDs, Mini LEDs, etc.), and the plurality of light-emitting components 121 form M light-emitting unit groups 122, where M is an integer greater than 1. The processing unit is electrically connected to the backlight module 120. When in use, a first area 102 is selected on the display area 101, and the processing unit determines N light-emitting unit groups 122 corresponding to the first area 102 according to the first area 102, and controls the brightness of the N light-emitting unit groups 122 to increase, where N is an integer greater than 1, and N≤M.

[0028] In this embodiment, the backlight module 120 is electrically connected to the processing unit, and the processing unit can control the individual luminous intensity of each light-emitting unit group 122 (for example, by adjusting the current or voltage, etc.). In this way, the M light-emitting unit groups 122 included in the backlight module 120 can each have their own luminous intensity. In actual operation, the number of light-emitting components 121 included in each light-emitting unit group 122 is not limited, and is at least 1. In addition, generally speaking, the number of light-emitting components included in each light-emitting unit group 122 can be equal, but is not limited to this.

[0029] like Figure 3 As shown, in this embodiment, the backlight module 120 has 48 light emitting components 121, and every 4 (2*2 matrix) light emitting components 121 constitute a light emitting unit group 122 ( Figure 2 122 in the figure), so that the backlight module 120 forms a total of 12 light-emitting unit groups 122, and M is 12. After the user selects the first area 102, the processing unit determines that the third area A corresponding to the first area 104 on the backlight module 120 includes a total of 4 light-emitting unit groups 122 according to the first area 102, and N is 4. In actual operation, the division of each light-emitting unit group 122 is not limited to a 2*2 matrix form, and the user can divide it according to actual needs, without being limited to this.

[0030] In actual operation, the display device 100 is placed on a table T. In order to assist the user in operating the display device 100, it is generally equipped with peripheral devices 210, such as a keyboard 201, a mouse 202, etc., but not limited to this. When the user uses the display device 100 in a dim environment, the table T and peripheral devices 210 in front of the display device 100 are not easily visible due to insufficient light. In the display device of the present invention, the backlight module 120 includes a plurality of light-emitting unit groups 122, and the light-emitting intensity of each light-emitting unit group 122 can be controlled individually. The user can select an area (i.e., the first area 102) on the display area 101, and the processing unit determines the N light-emitting unit groups 122 contained in the corresponding third area A on the backlight module 120 based on the first area 102, and controls the brightness of the N light-emitting unit groups 122 contained in the third area A to increase. As shown in 1 and Figure 2 As shown, because the brightness of the N light-emitting unit groups 122 corresponding to the first area 102 increases, the light L2 emitted from the first area 102 increases. In addition, the light L2 will not remain in a collimated state after emitting the display device 100, but will undergo a certain degree of angular diffusion, thereby increasing the light diffused to the table T and the peripheral equipment 210, thereby facilitating the user's operation in a dim environment.

[0031] like Figure 1 and Figure 2As shown, the display device 100 has a first side 103. When the display device 100 is placed on a table T, the first side 103 is adjacent to the table T relative to the other sides. In actual operation, in order to allow the light emitted from the display device 100 from the first area 102 to irradiate the table T at the shortest distance to ensure the irradiation intensity, preferably, the user can select an area adjacent to the first side 103 as the first area 102. As mentioned above, when the user operates the display device 100, the peripheral equipment is also placed on the table T. By increasing the light emitted from the portion of the display area 101 of the display device 100 close to the table T, the light irradiated to the table T and the peripheral equipment 210 located thereon can be increased, which is convenient for the user's operation.

[0032] In one embodiment, after selecting the first area 102 on the display area 101, the coordinate value range of the first area 102 is determined and the N light-emitting unit groups included in the third area A of the backlight module 120 corresponding thereto are determined according to the coordinate value range. In actual operation, the coordinate value range can be set in advance for the display panel 110 as the coordinate value range of the display area 101, so that after the user selects the first area 102, the coordinate value range corresponding to the first area 102 can be quickly determined. In actual operation, the coordinate value range can be set according to the resolution of the display panel 110, but it is not limited thereto.

[0033] In one embodiment, the display device 100 can be applied to a display system, which further includes a host and the aforementioned peripheral device 210, and the display device 100 and the peripheral device 210 are both communicatively connected to the host. When in use, the host sends a first display signal to the display device 100, and the display device 100 receives the first display signal and displays a window interface / screen on the display area 101 according to the first display signal, and the window interface / screen can occupy the entire display area 101; the peripheral device 210 is operated to make the host generate a first selection signal to determine a window area in the window interface / screen as the first area 102. The host determines the coordinate value range of the first area 102 according to the selected first area 102 and sends it to the display device 100, and the display device 100 determines the corresponding light-emitting unit group according to the coordinate value range. The first selection signal can be formed by the peripheral device inputting multiple parameters or by the peripheral device selecting an area in the window interface / screen, but is not limited thereto. In actual operation, the host can select different window areas as the first area 102 according to a variety of different first selection signals.

[0034] In another embodiment, the display device 100 may have an input module (e.g., a plurality of buttons disposed on the frame of the display device 100). When the user needs to increase the local brightness, the input module is operated to generate an OSD menu in the display area 101, and the OSD menu is operated to select and determine the first area 102. The processing unit determines the coordinate value range of the first area 102 according to the selected first area 102 and determines the corresponding light-emitting unit group according to the coordinate value range. In actual operation, the display device 100 can select different areas as the first area 102 according to a variety of different options in the OSD menu.

[0035] After determining the designated area, the display device 100 of the present invention enhances the brightness of the light-emitting unit group 122 corresponding to the designated area through the regional dimming function of the backlight module 120, thereby enhancing the illumination of the target area (such as the table T and the peripheral equipment 210 thereon), which is convenient for the user's operation. In addition, the backlight module 120 only enhances the brightness locally, so that the display effect of other areas of the display device 100 except the first area 102 is not affected (the amount of light L1 emitted from other areas remains unchanged). From the user's point of view, only the light L2 emitted from the display device 100 from the first area 102 is increased, and the display brightness of this area is increased to a certain extent, and at the same time, the illumination effect of the table T and the peripheral equipment 210 is better.

[0036] In actual operation, the user can input a first signal to remind the display device 100 to start the table lighting function, and then select the first area 102 on the display area 101. The user sends the first signal by, for example, operating the peripheral device 210 or a button on the display device 100. After receiving the first signal, the processing unit is ready to receive the range of the first area 102 determined by the user and subsequent actions.

[0037] Please refer to Figure 4 , Figure 4Schematic diagram of the second embodiment of the display device of the present invention. Different from the first embodiment, in this embodiment, the display device 200 further includes a first dimming layer 130, and the first dimming layer 130 is disposed on the backlight module 120. In this embodiment, the first dimming layer 130 is disposed on the display panel 110, but it is not limited to this in actual operation. The first dimming layer 130 is electrically connected to the processing unit. After selecting the first area 102 on the display area 101, the processing unit activates the second area B corresponding to the first area 102 on the first dimming layer 130. When the light propagating along the first direction emitted by the N light-emitting unit groups in the third area A of the aforementioned backlight module 120 passes through the second area B of the first dimming layer 130, at least part of the light is deflected and changed to propagate along the second direction, and the first direction forms an acute angle with the first direction. When the display device 200 is placed on a table T, the first direction can be parallel to the table T, and the second direction can be inclined toward the table T, thereby increasing the amount of light emitted to the table T.

[0038] In this embodiment, the processing unit controls the second area B of the first dimming layer 130 to be in a foggy state and controls other areas of the first dimming layer 130 to be in a transparent state. In this embodiment, the first dimming layer 130 is a PDLC layer and the first dimming layer 130 completely covers the display area 101, so that the user can select any position on the display area 101 as the first area 102, and the processing unit can control the second area B of the first dimming layer 130 corresponding to the first area 102 to be not powered on to be in a foggy state, and control other areas to be powered on to be in a transparent state. In actual operation, the first dimming layer 130 can also only partially cover the display panel 110. As mentioned above, when selecting the first area 102, the position adjacent to the table T can be preferentially selected, so that the first dimming layer 130 can only cover the area adjacent to the table T on the display area 101, thereby further reducing the impact on the light transmittance of other areas on the display area 101.

[0039] In this embodiment, in addition to the local brightness enhancement of the backlight module 120, the first dimming layer 130 can be provided to enhance the scattering degree of the light L2 emitted from the first area 102 of the display device 100 (the light diffusion angle is greater than that of the first area 102). Figure 2 The first embodiment shown is larger), thereby further increasing the amount of light emitted to the table T and enhancing the illumination of the table T. In addition, since the first dimming layer 130 is transparent in other areas outside the second area B (even the first dimming layer 130 may only cover the first area 102), the amount of light L1 emitted from the display device 100 in the area is not affected, and the display effect of the area is not affected.

[0040] The display device 200 of the present embodiment sets a first dimming layer 130 and controls the second area B on the first dimming layer 130 corresponding to the first area 102 to be in a foggy state, so that after the brightness of the N light-emitting unit groups 122 in the third area A on the backlight module 120 is increased, they further pass through the second area B of the foggy first dimming layer 130. At this time, the light entering the second area B from the N light-emitting unit groups 122 is scattered, further increasing the amount of light emitted from the first area 102 of the display device 100 and emitted to the table T, thereby facilitating the user's operation.

[0041] Please refer to Figure 5 , Figure 5 FIG. 1 is a left side view of a third embodiment of a display device of the present invention. Figure 4 The difference from the PDLC layer shown is that in this embodiment, the display device 300 includes a first dimming layer 140, and the first dimming layer 140 includes P dimming components 141 arranged in parallel, where P is an integer greater than 1. In this embodiment, P is 7. The aforementioned P dimming components 141 are arranged on the backlight module 120 at a first tilt angle. In this embodiment, the P dimming components 141 are arranged on the display panel 110, but this is not limited to the actual operation. After selecting the first area 102 on the display area 101, the processing unit determines the Q dimming components 141 included in the second area B corresponding to the first area 102 on the first dimming layer 140. In this embodiment, Q is 2, and the processing unit controls the aforementioned Q dimming components 141 to be in a foggy state, and the other dimming components 141 to be in a transparent state. The light emitted by the N light emitting unit groups 122 in the third area A corresponding to the first area 102 on the backlight module 120 is scattered (and reflected) after being emitted to the aforementioned Q dimming components 141, so that at least part of the light is deflected at an angle and then emitted from the display device 100. When the first area 102 is arranged adjacent to the first side 103 of the display device 100, the part of the light L2 is scattered (or reflected) and then emitted toward the first side 103, thereby increasing the illumination of the table T and facilitating the operation of the user.

[0042] like Figure 5 As shown, among the aforementioned P dimming components 141, except for Q dimming components that are in a foggy state, the remaining dimming components are all in a transparent state, so that the amount of light L1 emitted from the display device 100 from other areas except the first area 102 remains unchanged, and will not affect the display effects of the aforementioned other areas, so that users can clearly see the content displayed by the display device 100.

[0043] In actual operation, the aforementioned P dimming components 141 can be made of a PDLC layer. After the user determines the first area 102, the Q dimming components 141 corresponding to the first area 102 are controlled not to be powered, so that the Q dimming components 141 are foggy (or white), and the light emitted by the N light-emitting unit groups 122 in the third area A on the backlight module 120 is scattered (or reflected) when passing through the Q dimming components 141. At the same time, the processing unit controls the other dimming components 141 to be powered, so that the other dimming components 141 are transparent and do not affect the emission of light.

[0044] In this embodiment, the first dimming layer 140 completely covers the display area 101, so that the user can select any position on the display area 101 as the first area 102, and the processing unit can control the dimming component 141 in the second area B of the first dimming layer 140 corresponding to the first area 102 to be not powered on to be in a foggy state, and at the same time control the dimming components 141 in other areas to be powered on to be in a transparent state. In actual operation, similar to the second embodiment, the first dimming layer 140 can also only partially cover the display panel 110. As mentioned above, when selecting the first area 102, the position adjacent to the table T can be preferentially selected, so that the first dimming layer 140 can only cover the area adjacent to the table T on the display area 101, thereby further reducing the impact on the light transmittance of other areas on the display area 101.

[0045] Please refer to Figure 6 , Figure 6 FIG. 4 is a left side view of a fourth embodiment of a display device of the present invention. In this embodiment, the display device 400 includes a first dimming layer 150, and the first dimming layer 150 is disposed on the backlight module 120. Figure 6 As shown, in this embodiment, the first dimming layer 150 is arranged on the display panel 110, and the first dimming layer 150 is electrically connected to the processing unit. After selecting the first area 102 on the display area 101, the processing unit determines the second area B on the first dimming layer 150 corresponding to the first area 102. When the light emitted by the N light-emitting unit groups 122 in the third area A on the backlight module 120 and propagating along the first direction passes through the second area B, the propagation direction of at least part of the light is deflected, part of the light continues to propagate along the first direction, and the other part of the light is changed to propagate along the second direction, and the first direction and the second direction form an acute angle. In this embodiment, the first direction is a direction perpendicular to the display area 101 (or parallel to the table T as described above), such as Figure 6 The first direction is the direction indicated by the light L1. The second direction is the direction indicated by the light L2. When the display device 100 is placed on the table T, the second direction is inclined toward the table T and shines toward the table T, thereby increasing the amount of light directed toward the table T, which is convenient for users to operate in a dim environment. It should be noted that for the convenience of drawing, Figure 6The light emitted from the first region 102 in the first direction is not shown in the figure, and only the light emitted from the first region 102 in the second direction is shown.

[0046] In actual operation, the first dimming layer 150 may include a plurality of lens components, such as liquid crystal lenses. After the user determines the first area 102, the processing unit controls the liquid crystal lenses in the second area B corresponding to the first area 102 to be energized, so that when the light emitted by the N light-emitting unit groups 122 in the third area A on the backlight module 120 passes through the liquid crystal lenses in the second area B, at least part of the light is deflected and emitted toward the table T. The liquid crystal lenses in other areas may not be energized and be transparent, so that the light L1 emitted by other light-emitting unit groups 122 on the backlight module 120 can be emitted from the display device 100 normally.

[0047] like Figure 6 As shown, in the first dimming layer 150, except for the second area B corresponding to the first area which deflects the light to increase the light directed toward the table T, the first dimming layer 150 in other areas is transparent, so that the light L1 emitted by other light-emitting unit groups on the backlight module 120 can be emitted perpendicular to the display screen, which is beneficial for the user to clearly see the content displayed on the display screen.

[0048] In this embodiment, the first dimming layer 150 completely covers the display area 101, so that the user can select any position on the display area 101 as the first area 102, and the processing unit can control the liquid crystal lens in the second area B of the first dimming layer 150 corresponding to the first area 102 to be energized so that the light incident thereto is deflected at an angle and emitted to the table T, and at the same time control the liquid crystal lenses in other areas to be non-energized to be transparent. In actual operation, similar to the second embodiment, the first dimming layer 150 can also only partially cover the display panel 110. As mentioned above, when selecting the first area 102, the position adjacent to the first side edge 103 can be preferentially selected, so that the first dimming layer 150 can only cover the area adjacent to the table T on the display area 101, thereby further reducing the influence on the light transmittance of other areas on the display area 101. In addition, the first dimming layer 150 can also be spliced, for example, the area adjacent to the first side edge 103 on the corresponding display area 101 uses a liquid crystal lens, and the other areas use a PDLC layer.

[0049] As mentioned above, in actual operation, the area adjacent to the first side 103 is preferentially selected as the first area 102. Therefore, in addition to the user selecting the first area 102 by himself, the first signal can be input to start the table lighting function to enhance or deflect the light of the pre-set first area 102. In this case, the range of the first area 102 in the display area 101 can be pre-set, such as the area adjacent to the first side 103. The user can send the first signal by operating the peripheral device 210 or the button on the display device 100. After receiving the first signal, the processing unit controls the display device 100 to perform the table lighting function. When the display device 100 does not include the first dimming layer, the processing unit can provide more light directed to the table T by controlling the brightness of the light-emitting unit group corresponding to the first area 102 to increase. When the display device 100 includes the first dimming layer, the first dimming layer can be set according to the pre-set range of the first area 102 to further assist in enhancing the lighting of the table T.

[0050] Please refer to Figure 7 , Figure 7 1 is a left view of the fifth embodiment of the display device of the present invention. The display device 500 includes a display panel 110, a backlight module 120 and a processing unit (not shown). The backlight module 120 provides a backlight source to the display panel 110 so that the display panel 110 can display, so that the display device 500 has a display area. Figure 7 As shown, the display panel 110 is disposed on the backlight module 120. The backlight module 120 has a plurality of light-emitting components 121 (such as LEDs, Mini LEDs, etc.), and the plurality of light-emitting components 121 form M light-emitting unit groups, where M is an integer greater than 1, and the processing unit is electrically connected to the backlight module 120. In addition, the display device 500 is further provided with a first dimming layer 160, and the first dimming layer 160 is disposed on the backlight module 120. The first dimming layer 160 has a second area B corresponding to a first area pre-set on the display area, and the second area has a plurality of dimming components 161, and the plurality of dimming components 161 can be arranged in parallel or non-parallel. When the tabletop lighting function is activated, the processing unit can selectively control the brightness of the light emitting unit group 122 in the third area A corresponding to the first area on the backlight module 120' to increase, and when the light emitted by the light emitting unit group 122 reaches the plurality of dimming components 160 in the second area of ​​the first dimming layer 161, at least part of the light is deflected to increase the amount of light emitted to the tabletop T. In actual operation, the plurality of dimming components 161 can be a reflective component (such as a reflector), a refracting component or a lens component (such as the aforementioned liquid crystal lens, etc.).

[0051] Please refer to Figure 8 and Fig. 9 , Fig. 9 is a left side view of a sixth embodiment of a display device of the present invention, Fig. 9 for Figure 8 The front view of the backlight module. Figure 3 The difference between the backlight module 120 in the first embodiment shown is that in this embodiment, the M light-emitting unit groups of the backlight module 120' are divided into a first light-emitting unit group and a second light-emitting unit group, and the first dimming layer 160' is provided with a plurality of dimming components 161 corresponding to the first light-emitting unit group. When in use, for example, when the user inputs a first signal to start the table lighting function, the processing unit selectively controls the brightness of the first light-emitting unit group to be enhanced, and at least part of the light emitted by the first light-emitting unit group is deflected when passing through the plurality of dimming components 161' to be emitted toward the table T, and the light emitted by the second light-emitting unit group is emitted normally from the display device 500'.

[0052] like Figure 8 and Fig. 9 As shown, in this embodiment, the odd and even rows are distinguished, so that the first light-emitting unit group is the odd-numbered row light-emitting unit group 122A, and the second light-emitting unit group is the even-numbered row light-emitting unit group 122B. The display device 500' is also provided with a first dimming layer 160', and the first dimming layer 160' is arranged on the backlight module 120'. The first dimming layer 160' is provided with a plurality of dimming components 161' corresponding to the first light-emitting unit group (i.e., the odd-numbered row light-emitting unit group 122A), and the plurality of dimming components 161' can be arranged in parallel or non-parallel. When the tabletop lighting function is activated, the processing unit can selectively control the light emitted by the odd-numbered row light-emitting unit group 122A to be enhanced, and at least part of this part of the light is deflected when reaching the plurality of dimming components 161' of the first dimming layer 160, so as to increase the amount of light emitted to the tabletop T. The light emitted by the even-numbered row light-emitting unit group 122B is normally emitted from the display device 100. In actual operation, the plurality of dimming components 161 may be reflective components (such as reflectors), refracting components or lens components (such as the aforementioned liquid crystal lenses, etc.).

[0053] In actual operation, the M light-emitting unit groups may also be divided into the first light-emitting unit group and the second light-emitting unit group in other ways, and are not limited to the odd-numbered rows or even-numbered rows mentioned above. Figure 7The embodiment shown is used as an example. The light-emitting unit group contained in the third area A corresponding to the pre-set first area 102 on the backlight module 120' is divided into a first light-emitting unit group, and the other light-emitting unit groups are divided into a second light-emitting unit group, so that the first dimming layer 160 is provided with a plurality of dimming components 161 corresponding to the first light-emitting unit group. When in use, the user inputs a first signal to start the table lighting function, at which time the processing unit can selectively control the brightness enhancement of the first light-emitting unit group in the third area A, and at least part of the light emitted by the first light-emitting unit group is deflected and emitted toward the table T after passing through the plurality of dimming components 161, and the light emitted by the second light-emitting unit group is emitted normally from the display device 500.

[0054] The display device of the present invention uses the regional dimming function of the backlight module to adjust the brightness of the light-emitting unit group corresponding to the designated area, thereby enhancing the lighting of the target area (such as a table and the peripheral equipment thereon) to facilitate the user's operation. In addition, a dimming layer can be further used to achieve the deflection of light toward the target area to further increase the amount of light directed to the target area, facilitating the user's operation in a dim environment.

[0055] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A display device having a display area, characterized in that Include: A backlight module, wherein M light-emitting unit groups are arranged corresponding to the display area, where M is an integer greater than 1; and A processing unit electrically connected to the backlight module; When in use, a first area is selected on the display area, and the processing unit determines N light-emitting unit groups corresponding to the first area according to the first area, and controls the brightness of the N light-emitting unit groups to increase, wherein N is an integer greater than 1, and N≤M; The display device also includes a first dimming layer, which is arranged on the backlight module and is electrically connected to the processing unit. After the first area is selected in the display area, the processing unit determines a second area on the first dimming layer corresponding to the first area. When the light emitted by the N light-emitting unit groups and propagating along the first direction passes through the second area, at least part of the light is deflected and instead propagates along the second direction. The first direction forms an acute angle with the second direction.

2. The display device according to claim 1, characterized in that: After the first region is selected in the display area, a coordinate value range of the first region is determined and the corresponding N light emitting unit groups are determined according to the coordinate value range.

3. The display device according to claim 1, characterized in that The display device has a first side edge. When the display device is placed on a table, the first side edge is adjacent to the table surface, and the first area is adjacent to the first side edge.

4. The display device according to claim 1, characterized in that: When the display device is placed on a table, the first direction is parallel to the table, and the second direction is inclined toward the table.

5. The display device according to claim 1, characterized in that: The second area of ​​the first dimming layer is provided with a reflective component, a refractive component or a lens component corresponding to the N light-emitting unit groups.

6. The display device according to claim 1, characterized in that: After the processing unit determines the second area on the first dimming layer corresponding to the first area, the processing unit controls the second area of ​​the first dimming layer to be in a haze state and controls other areas of the first dimming layer to be in a transparent state.

7. The display device according to claim 6, characterized in that: The first dimming layer is a PDLC layer and at least covers a portion of the display area.

8. The display device according to claim 1, characterized in that: The first dimming layer includes P dimming components, where P is an integer greater than 1; the P dimming components are arranged on the backlight module at a first inclination angle. After selecting the first area on the display area, the processing unit determines the Q dimming components included in the second area and controls the Q dimming components to be in a foggy state, where Q is an integer greater than 1, and Q≤P.

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