Liquid crystal display device with camera moduleTechnical Field
The invention relates to the technical field of camera shooting, in particular to a liquid crystal display device with a camera shooting module.
Background
The liquid crystal display device is the most extensive display device of present application, and the liquid crystal display device has advantages such as frivolous, the energy consumption is little, radiationless, and is higher and higher to the multi-functional demand of liquid crystal display device along with people now, and more liquid crystal display device requires to dispose the module of making a video recording, especially to wearable equipment such as smart mobile phone, handheld devices such as panel computer or intelligent wrist-watch, the configuration of the module of making a video recording often is must. The image pickup module and the displayable area of the display module in the existing liquid crystal display device with the image pickup module are required to be separately arranged, because the display module does not emit light, the backlight unit is required to provide backlight light during working, the image pickup module is lightproof, and after the image pickup module is arranged corresponding to the display area of the display module, the backlight light can be influenced to enter the display module, so that the defect that the display module is just opposite to the local area backlight of the image pickup module is caused, and the display effect is influenced; meanwhile, the normal work of the camera module also has a requirement on light incidence, and the normal light incidence of the camera module can be influenced when the camera module is arranged in a visible area of the display module. In order to realize the arrangement of the camera module facing the display area of the display module, the OLED display module capable of self-luminescence is adopted to replace a liquid crystal display module, so that the problem of insufficient backlight is solved, but the production process of the OLED display module is complex and the cost is high; the scheme that the camera module is arranged at the corner position of the display area of the display module is also provided, the characteristic that the display requirement is not high under the common condition of the corner position of the display area is utilized, but the scheme has certain influence on a display picture and also has influence on the shooting range of the camera module; the module of making a video recording is arranged in the liquid crystal display device back at present also, utilizes the revolution mechanic to make a video recording the module and turn to positive scheme when needs use then, but such technical scheme start-up time is long when needs are shot, has influenced and has shot and experienced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a liquid crystal display device with a camera module, which can solve the problem that the camera module cannot be arranged corresponding to the display area of the display module, effectively ensure the backlight requirement of the normal work of the display module, ensure the light incidence requirement of the camera module when the camera module works normally, and realize the normal work of the display module and the camera module arranged corresponding to the display area.
In order to solve the above technical problem, the present invention provides a liquid crystal display device with a camera module, which includes a display module and a camera module disposed toward a display area of the display module, and further includes: the control module is electrically connected with the camera module and the display module and is used for controlling the display module to be in a transparent state when the camera module is started and to be in a closed display mode when facing the display area of the camera module, and controlling the display module to be in a transparent state when the camera module is stopped and to be in an open display mode when facing the display area of the camera module; the backlight compensation structure is electrically connected with the camera module and used for supplementing backlight to the display module when the camera module is closed and closing the camera module when the camera module is opened.
As a preferred scheme of the present invention, the display module includes a display panel and a backlight unit, the backlight unit is provided with a mounting hole for mounting the camera module, and the camera module is embedded in the mounting hole of the backlight unit.
As a preferable mode of the present invention, an annular reflection sheet is attached to an annular wall of the mounting hole surrounding the camera module.
As a preferable aspect of the present invention, the backlight compensation structure includes a circuit board attached to the mounting hole and a plurality of LEDs electrically connected to the circuit board.
As a preferable scheme of the present invention, the backlight compensation structure further includes an annular light guide plate disposed corresponding to the plurality of LEDs, the circuit board is attached to an annular wall of the mounting hole surrounding the camera module, and the LEDs are top-emission LEDs.
As a preferable aspect of the present invention, the backlight compensation structure includes a circuit board disposed on the camera module and a plurality of LEDs electrically connected to the circuit board.
As a preferable scheme of the present invention, the present invention further includes a light shielding structure, where the light shielding structure is used to prevent backlight from entering the camera module when the camera module is in operation.
As a preferred embodiment of the present invention, the light shielding structure is a retractable sleeve sleeved on the camera module, and when the camera module works, the retractable sleeve extends to abut against the display module.
The invention has the following technical effects: according to the liquid crystal display device with the camera module, when the camera module is started, the control module synchronously controls the display module to be in a transparent state in a way of closing display in a way of facing a display area of the camera module, and simultaneously the backlight compensation structure is kept in a closed state when the camera module is started, so that the light incidence requirement of the camera module is ensured, and interference light rays cannot enter the camera module to influence imaging; when the camera module is closed, the backlight compensation structure is started to supplement backlight to the display module, and the control module controls the display module to be directly opposite to the display area of the camera module to start display, so that the backlight requirement and normal display of the display module when the camera module does not work are ensured. In addition, the backlight unit is provided with the mounting hole for mounting the camera module, and the camera module is embedded into the mounting hole of the backlight unit, so that the thickness of the liquid crystal display device can be effectively reduced; the installation hole is surrounded on the annular wall of the camera module, reflection is attached to the annular wall, so that light of the backlight unit cannot be diffused into the camera module to influence imaging of the camera module.
Drawings
Fig. 1 is a schematic view of a camera module arrangement of a liquid crystal display device with a camera module according to an embodiment of the present invention;
fig. 2 is a block diagram of a liquid crystal display device with a camera module according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating an installation of a camera module according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a backlight compensation structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another backlight compensation structure according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a light shielding structure according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another backlight compensation structure according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1-2, it shows a schematic structural diagram of a liquid crystal display device with a camera module according to the present invention. This liquid crystal display device includesdisplay module assembly 1 and orientation themodule 2 of making a video recording that 1 display area of display module assembly set up because themodule 2 orientation of making avideo recording 1 display area of display module assembly sets up, anddisplay module assembly 1 exists one promptly and makes a video recording just right local display area. The liquid crystal display device also comprises acontrol module 3, wherein thecontrol module 3 is electrically connected with thecamera module 2 and thedisplay module 1, and is used for controlling thedisplay module 1 to be in a state of closing display and becoming a light-transmitting state, which is directly opposite to the display area of thecamera module 2, when thecamera module 2 is opened, and controlling thedisplay module 1 to be in a state of opening display, which is directly opposite to the display area of thecamera module 2, when thecamera module 2 is closed; the liquid crystal display device further comprises abacklight compensation structure 4, wherein thebacklight compensation structure 4 is electrically connected with thecamera module 2 and used for supplementing backlight to thedisplay module 1 when thecamera module 2 is closed and closing thecamera module 2 when thecamera module 2 is opened.
When thecamera module 2 is opened, as the imaging of thecamera module 2 has certain requirements for incident light, in order to effectively image thecamera module 2, thecontrol module 3 electrically connected to thecamera module 2 synchronously controls thedisplay module 1 to face the display area of thecamera module 2 to close the display and form a light-transmitting state, so that the incident light requirement of thecamera module 2 is ensured, and normal imaging can be realized; meanwhile, thebacklight compensation structure 4 keeps a closed state when thecamera module 2 is opened, so that interference light rays cannot enter thecamera module 2 to influence imaging.
When thecamera module 2 is closed, thecamera module 2 is arranged towards the display area of thedisplay module 1, so that the backlight light which is directly opposite to the display area of thecamera module 2 is inevitably influenced, at the moment, thebacklight compensation structure 4 which is electrically connected to thecamera module 2 is opened to supplement backlight to thedisplay module 1, the backlight requirement of thedisplay module 1 is ensured, meanwhile, thecontrol module 3 controls thedisplay module 1 to be directly opposite to the display area of thecamera module 2 to start display, and the normal display effect of thedisplay module 1 when thecamera module 2 does not work is ensured. Preferably, the brightness of the compensation light provided by thebacklight compensation structure 4 should be consistent with the backlight brightness provided by thebacklight unit 12, so as to avoid a bright area or a dark area on thedisplay module 1, thereby obtaining a better display effect.
Specifically, as shown in fig. 3, thedisplay module 1 includes adisplay panel 11 and abacklight unit 12, amounting hole 125 for mounting thecamera module 2 is formed in thebacklight unit 12, and thecamera module 2 is embedded in themounting hole 125 of thebacklight unit 12. In this embodiment, thebacklight unit 12 includes abottom frame 124, areflective sheet 123 and alight guide plate 122 disposed on thebottom frame 124, and anoptical film set 121 disposed on thelight guide plate 122, wherein the optical film set 121, thelight guide plate 122, and thereflective sheet 123 are sequentially provided with stacked through holes, thereby forming amounting hole 125 for mounting thecamera module 2. Furthermore, the annular wall of themounting hole 125 surrounding thecamera module 2 is attached with anannular reflection sheet 126. Thus, themounting hole 125 formed in thebacklight unit 12 can be used to accommodate thecamera module 2, which can effectively reduce the thickness of the liquid crystal display device. Moreover, since theannular reflection sheet 126 is attached to the annular wall of themounting hole 125 surrounding thecamera module 2, the light of thebacklight unit 12 is not diffused into thecamera module 2 to affect the image formation of thecamera module 2. In this embodiment, thedisplay panel 11 includes a lower polarizer, an array substrate disposed on the lower polarizer, a liquid crystal layer, a color film substrate, and an upper polarizer attached to the color film substrate, and in consideration of a certain influence of the color film substrate on the incident light of the camera module, the display panel can perform anti-reflection effect processing on the color film substrate, and can enhance the image sharpness by combining with the existing software algorithm, thereby effectively improving the imaging effect.
Further, as shown in fig. 4, thebacklight compensation structure 4 includes acircuit board 41 attached to themounting hole 125 and a plurality ofLEDs 42 electrically connected to thecircuit board 41; thus, the light emitted from the LED42 can be used as backlight compensation light to ensure the backlight brightness of the display area facing thecamera module 2. Further, as shown in fig. 5, thebacklight compensation structure 4 further includes an annularlight guide plate 122 disposed corresponding to the plurality ofLEDs 42, thecircuit board 41 is attached to the annular wall of themounting hole 125 surrounding thecamera module 2, and the LED42 is a top-emittingLED 42. In the embodiment, the annularlight guide plate 122 has a T-shaped cross section, so that the light emitted from theLEDs 42 enters thelight guide plate 122 in a limited manner and is reflected for multiple times to form more uniform and effective backlight light to provide backlight compensation for thedisplay module 1.
Further, the liquid crystal display device further comprises alight shielding structure 21, wherein thelight shielding structure 21 is used for preventing backlight from entering thecamera module 2 when thecamera module 2 works. In this embodiment, as shown in fig. 6, thelight shielding structure 21 is a retractable sleeve sleeved on thecamera module 2, and when thecamera module 2 works, the retractable sleeve extends to abut against thedisplay module 1. Because a certain space is left between thebacklight unit 12 and thedisplay module 1, in order to avoid that light rays emitted by thebacklight unit 12 enter thecamera module 2 when thecamera module 2 is opened, the retractable sleeve is raised to be long enough to support thedisplay module 1, so that the incident light of thecamera module 2 is not interfered by backlight, and the imaging effect is improved; when thecamera module 2 is closed, the retractable sleeve can be shortened, and light rays of thebacklight compensation structure 4 can enter the area of thedisplay module 1, which is directly opposite to thecamera module 2, so that the normal work of thedisplay module 1 is ensured.
Example two
The embodiment provides a liquid crystal display device with a camera module. This liquid crystal display device includesdisplay module assembly 1 and orientation themodule 2 of making a video recording that 1 display area of display module assembly set up because themodule 2 orientation of making avideo recording 1 display area of display module assembly sets up, anddisplay module assembly 1 exists one promptly and makes a video recording just right local area. The liquid crystal display device also comprises acontrol module 3, wherein thecontrol module 3 is electrically connected with thecamera module 2 and thedisplay module 1, and is used for controlling thedisplay module 1 to be in a state of closing display and becoming a light-transmitting state, which is directly opposite to the display area of thecamera module 2, when thecamera module 2 is opened, and controlling thedisplay module 1 to be in a state of opening display, which is directly opposite to the display area of thecamera module 2, when thecamera module 2 is closed; the liquid crystal display device further comprises abacklight compensation structure 4, wherein thebacklight compensation structure 4 is electrically connected with thecamera module 2 and used for supplementing backlight to thedisplay module 1 when thecamera module 2 is closed and closing thecamera module 2 when thecamera module 2 is opened.
The main difference between the present embodiment and the previous embodiment is that thebacklight compensation structure 4 of the present embodiment includes acircuit board 41 disposed on thecamera module 2 and a plurality ofLEDs 42 electrically connected to thecircuit board 41. As shown in fig. 5, the top of thecamera module 2 is attached with thecircuit board 41 and theLEDs 42, so that thebacklight compensation structure 4 on the top of thecamera module 2 is also opposite to thedisplay module 1, thereby ensuring a more uniform backlight compensation effect when providing backlight compensation. It should be noted that the specific shape of thebacklight compensation structure 4 disposed at the top of thecamera module 2 is not limited, and the light inlet of thecamera module 2 is not blocked during installation.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.