Ultrathin touch colorful atmosphere lamp

Abstract

The ultrathin touch-control colorful atmosphere lamp comprises a touch-control light-emitting screen and a main control board which are electrically connected, and the front face of the touch-control light-emitting screen is bonded to the inner side of a light-transmitting shell wall; the touch light-emitting screen is formed by stacking and attaching a touch panel and a light source panel, and an LED array is distributed on the light source panel. The thinned touch light-emitting screen is attached to the inner side of the light-transmitting shell wall, and a cool light-emitting effect can be provided for the back shell of the handheld electronic equipment in a touch mode under the condition that the thickness requirement of the handheld electronic equipment is met.

Description

Technical Field

[0001] This utility model relates to the field of LED backlight technology, specifically to an ultra-thin touch-sensitive ambient light. Background Technology

[0002] Currently, the back covers of handheld electronic devices such as smartphones, walkie-talkies, and e-book readers generally lack additional functions and serve only a protective purpose. In today's pursuit of personalization in electronic devices, back covers without additional functions fail to provide users with a cool and stylish experience. Back cover designs with luminous functions can undoubtedly make up for this deficiency. However, if a luminous screen and the control devices for controlling the screen are installed inside the back cover, they will occupy internal space, and the increased thickness will make it difficult to meet the overall thinness requirements of some handheld electronic devices. Utility Model Content

[0003] To address the shortcomings of the prior art, this utility model proposes an ultra-thin touch-sensitive ambient light, comprising a touch-sensitive light-emitting screen formed by stacking and bonding a touch panel and a light source board. The thin touch-sensitive light-emitting screen is bonded to the inner side of the light-transmitting shell wall, which can provide a cool lighting effect for the back shell of handheld electronic devices through touch mode.

[0004] This utility model proposes an ultra-thin touch-sensitive colorful ambient light, including an electrically connected touch-sensitive light-emitting screen and a main control board, with the front of the touch-sensitive light-emitting screen adhered to the inner side of the light-transmitting shell wall;

[0005] The touch screen is composed of a touch panel and a light source board stacked together, with the light source board having an LED array.

[0006] Preferably, the LED array is arranged on the front side of the light source board, the bottom surface of the touch panel is bonded to the front side of the light source board, and the LED array is encapsulated in adhesive.

[0007] Preferably, the light source board is an FPC circuit board.

[0008] Preferably, the touchpad is an ITO touch film.

[0009] Preferably, the main control board is equipped with a main control MCU, a touch chip, and an LED driver chip that are electrically connected;

[0010] The main control board is formed by extending from the light source board to one side of the plane. The main control board and the touch panel are electrically connected through the first FPC data line.

[0011] Preferably, the main control board is equipped with a main control MCU, a touch chip, and an LED driver chip that are electrically connected;

[0012] The main control board and the light source board are set separately. The main control board and the touch panel are electrically connected through the first FPC data line, and the main control board and the light source board are electrically connected through the second FPC data line.

[0013] Preferably, the touch chip is used to receive coordinate signals from the touchpad and report the coordinate signals to the main control MCU;

[0014] The main control MCU is used to determine the corresponding display position based on the coordinate signal, and send a light-emitting command to the LED driver chip according to the preset light-emitting scheme associated with the corresponding display position;

[0015] LED driver chips are used to drive LED arrays to emit light according to light-emitting instructions.

[0016] Preferably, the materials used for bonding the first adhesive layer to the touch panel and the light source panel, and for bonding the second adhesive layer to the touch panel and the light-transmitting shell wall, are optical adhesives.

[0017] The beneficial effects of this utility model include: the touch-emitting screen of the ultra-thin touch-sensitive ambient light is attached to the inner side of the light-transmitting shell wall of the back cover of the handheld device, giving the back cover of the handheld device a touch-emitting function, satisfying the user's cool needs; the touch-emitting screen is composed of a touch panel and a light source board stacked together, reducing the thickness of the touch-emitting screen; the light source board is an FPC circuit board, the touch panel is an ITO touch film, and the light source board uses LED chips with a height of less than 0.15mm, further controlling the overall thickness of the touch-emitting screen to less than 1mm; in addition, the ultra-thin touch-sensitive ambient light selects different preset lighting schemes according to the touch position, resulting in rich and colorful lighting effects, further satisfying the user's cool needs. Attached Figure Description

[0018] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the assembly of the ultra-thin touch-sensitive ambient light and the handheld device housing in Example 1.

[0020] Figure 2 This is a magnified view of a portion of the layered structure in Example 1.

[0021] Figure 3 This is an exploded view of the structure of the ultra-thin touch-sensitive ambient light in Example 1.

[0022] Figure 4 This is an exploded view of the structure of the ultra-thin touch-sensitive ambient light in Example 2.

[0023] Figure 5 This is a schematic diagram of the electrical functional logic of the ultra-thin touch-sensitive colorful ambient light of this utility model.

[0024] Figure label:

[0025] 1-Touchscreen, 11-Touchpad, 12-Light source board, 13-LED array, 14-First colloidal layer, 15-Second colloidal layer, 2-Main control board, 21-Main control MCU, 22-Touch chip, 23-LED driver chip, 3-Transparent shell, 41-First FPC data cable, 42-Second FPC data cable. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0028] The principle of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] This invention proposes an ultra-thin touch-sensitive ambient light, comprising an electrically connected touch-sensitive light-emitting screen 1 and a main control board 2. The front of the touch-sensitive light-emitting screen 1 is adhered to the inner side of a light-transmitting shell 3. The touch-sensitive light-emitting screen 1 is composed of a touch panel 11 and a light source board 12 stacked and bonded together, with an LED array 13 arranged on the light source board 12. The touch-sensitive light-emitting screen 1, combining the touch panel 11 and the light source board 12, has the function of touch-sensitive illumination, satisfying users' cool needs.

[0031] The ultra-thin touch-sensitive ambient light is installed inside the housing of the handheld device. The part of the housing that is in contact with the touch-sensitive LED screen 1 needs to be made of a light-transmitting material to form a light-transmitting shell wall 3, so that the light emitted by the touch-sensitive LED screen 1 can pass through the housing. The main control board 2 is connected to the circuitry of the handheld device and is powered by the battery of the handheld device.

[0032] In this embodiment, the LED array 13 is arranged on the front side of the light source board 12, and the bottom surface of the touch panel 11 is bonded to the front side of the light source board 12, with the LED array 13 encased in an adhesive. The light source board 12 is an FPC (Flexible Printed Circuit) circuit board, which is lightweight, thin, and bendable. The touch panel 11 is an ITO touch film, where ITO is an n-type semiconductor material, and the touch film made of ITO has high conductivity and high visible light transmittance. The material used to bond the touch panel 11 and the light source board 12 is OCA optical adhesive, which, after encapsulating the LED array 13, forms a first adhesive layer 14 sandwiched between the touch panel 11 and the light source board 12. OCA optical adhesive has high light transmittance. In this embodiment, LED chips with a height of less than 0.15mm are selected, the overall thickness of the FPC circuit board and LED array 13 is less than 0.26mm, and ITO touch film with a thickness of less than 0.075mm and OCA optical adhesive with a thickness of less than 0.125mm are selected. The thickness of the stacked touch screen does not exceed 0.5mm.

[0033] In this embodiment, the material used to bond the touch panel 11 and the light-transmitting shell 3 is OCA optical adhesive with a thickness of less than 0.125 mm. The OCA optical adhesive forms a second adhesive layer 15 between the touch panel 11 and the light-transmitting shell 3. The touch panel 11 and the light-transmitting shell 3 are seamlessly bonded by the OCA optical adhesive with a thickness of less than 0.125 mm, which can effectively and sensitively reflect changes in contact capacitance and achieve a small light attenuation.

[0034] It should be noted that other types of adhesives may also be used for the first colloidal layer 14 and the second colloidal layer 15.

[0035] In this embodiment, the main control board 2 is equipped with a main control MCU 21, a touch chip 22, and an LED driver chip 23 that are electrically connected. The main control board 2 is formed by extending from the light source board 12 to one side of the plane. The main control board 2 and the touch panel 11 are electrically connected through a first FPC data line 41. The area of ​​the main control board 2 is usually smaller than that of the touch screen 1. The thickness of the various chips on the main control board 2 is difficult to control. Therefore, by making it independent of the touch screen 1, the thickness of the touch screen 1 can be avoided. The smaller main control board 2 is also easier to install in the handheld device. The integrated connection method is more suitable for situations where the wiring positions of the handheld device motherboard are close together. The main control board 2 can be electrically connected to the wiring points of the handheld device motherboard through bonding technology to obtain power.

[0036] In this embodiment, the touch chip 22 receives coordinate signals from the touchpad 11 and reports the coordinate signals to the main control MCU 21. The main control MCU 21 determines the corresponding display position based on the coordinate signals and sends a light-emitting command to the LED driver chip 23 according to the preset light-emitting scheme associated with the corresponding display position. The LED driver chip 23 drives the LED array 13 to emit light according to the light-emitting command. The main control MCU 21 has multiple preset light-emitting schemes to correspond to different touch positions and touch methods. When the user clicks on different positions or slides in different directions, the main control board 2 will select the corresponding preset light-emitting scheme and send a command to produce different light-emitting effects.

[0037] Example 2

[0038] This invention proposes an ultra-thin touch-sensitive ambient light, comprising an electrically connected touch-sensitive light-emitting screen 1 and a main control board 2. The front of the touch-sensitive light-emitting screen 1 is adhered to the inner side of a light-transmitting shell 3. The touch-sensitive light-emitting screen 1 is composed of a touch panel 11 and a light source board 12 stacked and bonded together, with an LED array 13 arranged on the light source board 12. The touch-sensitive light-emitting screen 1, combining the touch panel 11 and the light source board 12, has the function of touch-sensitive illumination, satisfying users' cool needs.

[0039] The ultra-thin touch-sensitive ambient light is installed inside the housing of the handheld device. The part of the housing that is in contact with the touch-sensitive LED screen 1 needs to be made of a light-transmitting material to form a light-transmitting shell wall 3, so that the light emitted by the touch-sensitive LED screen 1 can pass through the housing. The main control board 2 is connected to the circuitry of the handheld device and is powered by the battery of the handheld device.

[0040] In this embodiment, the LED array 13 is arranged on the front side of the light source board 12, and the bottom surface of the touch panel 11 is bonded to the front side of the light source board 12, with the LED array 13 encased in an adhesive. The light source board 12 is an FPC (Flexible Printed Circuit) circuit board, which is lightweight, thin, and bendable. The touch panel 11 is an ITO touch film, where ITO is an n-type semiconductor material, and the touch film made of ITO has high conductivity and high visible light transmittance. The material used to bond the touch panel 11 and the light source board 12 is OCA optical adhesive, which, after encapsulating the LED array 13, forms a first adhesive layer 14 sandwiched between the touch panel 11 and the light source board 12. OCA optical adhesive has high light transmittance. In this embodiment, LED chips with a height of less than 0.15mm are selected, the overall thickness of the FPC circuit board and LED array 13 is less than 0.26mm, and ITO touch film with a thickness of less than 0.075mm and OCA optical adhesive with a thickness of less than 0.125mm are selected. The thickness of the stacked touch screen does not exceed 0.5mm.

[0041] In this embodiment, the material used to bond the touch panel 11 and the light-transmitting shell 3 is OCA optical adhesive with a thickness of less than 0.125 mm. The OCA optical adhesive forms a second adhesive layer 15 between the touch panel 11 and the light-transmitting shell 3. The touch panel 11 and the light-transmitting shell 3 are seamlessly bonded by the OCA optical adhesive with a thickness of less than 0.125 mm, which can effectively and sensitively reflect changes in contact capacitance and achieve a small light attenuation.

[0042] It should be noted that other types of adhesives may also be used for the first colloidal layer 14 and the second colloidal layer 15.

[0043] In this embodiment, the main control board 2 is equipped with a main control MCU 21, a touch chip 22, and an LED driver chip 23, which are electrically connected. The main control board 2 is separated from the light source board 12. The main control board 2 is electrically connected to the touch panel 11 via a first FPC data line 41, and the main control board 2 is electrically connected to the light source board 12 via a second FPC data line 42. This separate configuration is more suitable for situations where the wiring of the handheld device's motherboard is far from the main control board 2. The main control board 2 can be electrically connected to the wiring points of the handheld device's motherboard via bonding technology to obtain power.

[0044] In this embodiment, the touch chip 22 receives coordinate signals from the touchpad 11 and reports the coordinate signals to the main control MCU 21. The main control MCU 21 determines the corresponding display position based on the coordinate signals and sends a light-emitting command to the LED driver chip 23 according to the preset light-emitting scheme associated with the corresponding display position. The LED driver chip 23 drives the LED array 13 to emit light according to the light-emitting command. The main control MCU 21 has multiple preset light-emitting schemes to correspond to different touch positions and touch methods. When the user clicks on different positions or slides in different directions, the main control board 2 will select the corresponding preset light-emitting scheme and send a command to produce different light-emitting effects.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultra-thin touch-sensitive ambient light, characterized in that, It includes an electrically connected touch-sensitive light-emitting screen and a main control board, wherein the front of the touch-sensitive light-emitting screen is bonded to the inner side of the light-transmitting shell wall; The touch-sensitive luminous screen is composed of a touch panel and a light source board stacked together, and the light source board is equipped with an LED array.

2. The ultra-thin touch-sensitive ambient light as described in claim 1, characterized in that, The LED array is arranged on the front side of the light source board, the bottom surface of the touch panel is bonded to the front side of the light source board, and the LED array is encapsulated in adhesive.

3. The ultra-thin touch-sensitive ambient light as described in claim 2, characterized in that, The light source board is an FPC circuit board.

4. The ultra-thin touch-sensitive ambient light as described in claim 3, characterized in that, The touchpad is an ITO touch film.

5. The ultra-thin touch-sensitive ambient light as described in claim 4, characterized in that, The main control board is equipped with a main control MCU, a touch chip, and an LED driver chip that are electrically connected. The main control board is formed by extending one part of the light source board outwards to one side of the plane, and the main control board and the touch panel are electrically connected through a first FPC data line.

6. The ultra-thin touch-sensitive ambient light as described in claim 4, characterized in that, The main control board is equipped with a main control MCU, a touch chip, and an LED driver chip that are electrically connected. The main control board is separately disposed from the light source board. The main control board is electrically connected to the touch panel via a first FPC data line, and the main control board is electrically connected to the light source board via a second FPC data line.

7. The ultra-thin touch-sensitive ambient light as described in claim 5 or 6, characterized in that, The touch chip is used to receive coordinate signals from the touchpad and report the coordinate signals to the main control MCU; The main control MCU is used to determine the corresponding display position according to the coordinate signal, and send a light-emitting command to the LED driver chip according to the preset light-emitting scheme associated with the corresponding display position; The LED driver chip is used to drive the LED array to emit light according to the light-emitting command.

8. The ultra-thin touch-sensitive ambient light as described in claim 7, characterized in that, The materials used to bond the first adhesive layer of the touch panel and the light source plate, and the materials used to bond the second adhesive layer of the touch panel and the light-transmitting shell wall, are optical adhesives.

Images