Structure for optimizing light sensation adjustment precision of AMOLED module
By optimizing the positional relationship and connection mode of photosensitive EM and photosensitive Sensor in the AMOLED display module, the problem that the photosensitive IC is affected by the screen brightness when detecting ambient light is solved, and a higher photosensitive IC detection accuracy and display brightness adjustment accuracy are achieved.
Patent Information
- Application Number
- CN202421847547.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the existing AMOLED display module, when the light-sensitive IC detects ambient light, due to the influence of the screen brightness, the ambient light calculated by the light-sensitive IC is inaccurate, which affects the adjustment accuracy of the display screen brightness.
By setting a specific positional relationship between the photosensitive EM and the photosensitive Sensor in the display module, and the electrical connection between the photosensitive EM adjustment module and the photosensitive EM, the photosensitive EM is allowed to adjust its length and width as needed, thereby increasing the amount of ambient light received by the photosensitive Sensor and reducing the impact on the screen brightness.
Under the same conditions, the detection accuracy of the photosensitive IC on ambient light is improved, and the impact on the screen brightness is reduced, thereby improving the accuracy of display brightness adjustment.
Smart Images
Figure CN222995080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of AMOLED display modules, in particular to a structure for optimizing the light-sensing adjustment accuracy of an AMOLED module. Background Technique
[0002] With the progress of technology, more and more smart wearable devices such as bracelets / watches and other products are built-in with light-sensing components, aiming to detect the external ambient light brightness where the product is located to automatically adjust the brightness of the display screen, achieving a dynamic balance between the display effect and power consumption. Most mid- to high-end smart watches on the market use AMOLED display screens. The design for adaptive brightness adjustment is to open holes in the foam on the back of the AMOLED display screen, and then attach the light-sensing chip directly below the foam with the opening. When such a light-sensing IC detects the ambient light under the screen, if the screen is lit, it will affect the light-sensing IC sensor, resulting in inaccurate calculation of the ambient light brightness by the light-sensing IC and affecting its adjustment accuracy for the display screen brightness. Therefore, this solution reduces the impact of the screen itself on the working accuracy of the light-sensing IC through the method of EM dimming of the display screen. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a structure for optimizing the light-sensing adjustment accuracy of an AMOLED module.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A structure for optimizing the light-sensing adjustment accuracy of an AMOLED module, comprising: a display module, the display module includes an OLED display screen, an FPC is arranged at the center of the bottom of the OLED display screen, a light-sensing area is arranged on the right side of the top of the OLED display screen, the center of the light-sensing area is a photosensitive EM, and a light-sensing Sensor is arranged on the back of the right side of the top of the OLED display screen; a photosensitive EM adjustment module is arranged in the display module, and the photosensitive EM is electrically connected to the photosensitive EM adjustment module.
[0006] In one embodiment, an IC is arranged at the center of the top of the front side of the FPC, and a ZIF connector is arranged at the center of the bottom of the front side of the FPC.
[0007] In one embodiment, the light-sensing Sensor is located at the center of the back of the light-sensing area, and the light-sensing Sensor is perpendicular to the light-sensing area.
[0008] In one embodiment, the length and width of the front side of the FPC are both smaller than the length and width of the front side of the display module.
[0009] In one embodiment, a camera module is disposed at the center of the top of the front surface of the OLED display screen.
[0010] In one embodiment, the front surface of the photosensitive area is rectangular, and both the left and right sides of the photosensitive area are rounded.
[0011] In one embodiment, the four corners of the display module are all rounded.
[0012] In one embodiment, a glass cover plate is disposed on the front surface of the display module, and openings adapted to the photosensitive area and the camera module are provided at the center of the front surface and the left side of the top of the glass cover plate.
[0013] In one embodiment, black ink is screen-printed around the glass cover plate on the front surface of the display module.
[0014] In one embodiment, a touch FPC is disposed on the right side of the bottom of the back of the OLED display screen, and one side of the touch FPC is connected to the FPC.
[0015] Compared with the prior art, the present utility model has at least the following advantages:
[0016] A structure for optimizing the light sensing adjustment accuracy of an AMOLED module of the present utility model, by setting the positional relationship between the photosensitive EM and the light sensing Sensor, and the connection manner between the photosensitive EM adjustment module and the photosensitive EM, enables the photosensitive EM to adjust its length as needed, and the size of the EM width determines the amount of ambient light received by the light sensing Sensor. Therefore, under the same conditions, the more ambient light the light sensing Sensor on the back can receive, reducing its influence by the screen brightness, thereby achieving the improvement of the adjustment accuracy of the light sensing IC. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 It is a front overall schematic diagram of the structure for optimizing the light sensing adjustment accuracy of the AMOLED module of the present utility model;
[0019] Figure 2 It is a side illumination effect schematic diagram of the light sensing Sensor and the photosensitive EM of the structure for optimizing the light sensing adjustment accuracy of the AMOLED module of the present utility model.
[0020] In the figure: 1. Display module; 11. OLED display screen; 12. Photosensitive area; 13. Photosensitive EM; 14. Light sensor; 2. FPC; 21. ZIF connector; 22. IC. Detailed implementation manners
[0021] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present utility model can be understood more thoroughly and comprehensively.
[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.
[0023] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0025] Such as Figure 1-2As shown in the figure, a structure for optimizing the light sensing adjustment accuracy of an AMOLED module includes: a display module 1, where the display module 1 includes an OLED display screen 11. In the center of the bottom of the OLED display screen 11, there is an FPC 2. On the right side of the top of the OLED display screen 11, there is a light sensing area 12. In the center of the light sensing area 12 is a light sensing EM 13. On the back of the top right side of the OLED display screen 11, there is a light sensing Sensor 14. In the display module 1, there is a light sensing EM adjustment module, and the light sensing EM 13 is electrically connected to this light sensing EM adjustment module. It should be noted that the light sensing EM adjustment module uses freerun integration and stores it in the FIFO memory. It grabs the lowest value of 64 data as the blanking time (the time to grab one data is 3.125 ms). Different light sensing capabilities require different EM widths. In this example, the light sensing uses STK31850. Based on mass production experience, the EM width required by STK31850 is 2.5 ms. This project uses 60 Hz, so the black insertion ratio needs to be 2.5 / (1000 / 60) = 15%. Therefore, the light sensing adjustment of this module can receive more ambient light, is less affected by the screen brightness, and has higher accuracy.
[0026] As Figure 1-2 shown in an embodiment, an IC 22 is provided at the central position of the top of the front side of the FPC 2, and a ZIF connector 21 is provided at the center of the bottom of the front side of the FPC 2. It should be noted that a PI reinforcement plate is provided on the back of the bottom of the front side of the FPC 2.
[0027] As Figure 1-2 shown in an embodiment, the light sensing Sensor 14 is located at the center of the back of the light sensing area 12, and the light sensing Sensor 14 is perpendicular to the light sensing area 12. It should be noted that the length and size of the light sensing Sensor 14 match the length of the light sensing EM 12.
[0028] As Figure 1-2 shown in an embodiment, the length and width of the front side of the FPC 2 are both smaller than the length and width of the front side of the display module 1. It should be noted that the FPC 2 can be bent to the back of the display module 1, so that the FPC 2 can be hidden on the back of the display module 1, achieving the purpose of saving space.
[0029] As Figure 1-2 shown in an embodiment, a camera module is provided at the center of the top of the front side of the OLED display screen 11. A glass cover plate is provided on the front side of the display module 1. Openings adapted to the light sensing area 12 and the camera module are provided at the center and the left side of the top of the front side of the glass cover plate. It should be noted that this design can ensure that the light sensing function and the camera function on the OLED display screen 11 are not affected and can be protected.
[0030] As Figure 1-2As shown, in one embodiment, the shape of the front surface of the photosensitive area 12 is rectangular, and the left and right sides of the photosensitive area 12 are both rounded.
[0031] As Figure 1-2 shown, in one embodiment, the four corners of the display module 1 are all rounded. It should be noted that this design can enhance the safety of the display module 1.
[0032] As Figure 1-2 shown, in one embodiment, black ink is screen-printed around the front glass cover plate of the display module 1. It should be noted that this design can enhance the aesthetics of the display module 1.
[0033] As Figure 1-2 shown, in one embodiment, a touch FPC is provided on the right side of the bottom of the back of the OLED display screen 11, and one side of the touch FPC is connected to the FPC2.
[0034] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module, characterized in that: include: A display module (1), the display module (1) comprising an OLED display screen (11), an FPC (2) being arranged at the center of the bottom of the OLED display screen (11), a photosensitive area (12) being arranged at the right side of the top of the OLED display screen (11), a photosensitive EM (13) being arranged at the center of the photosensitive area (12), and a light-sensitive sensor (14) being arranged at the back of the right side of the top of the OLED display screen (11); The display module (1) is provided with a photosensitive EM adjustment module, and the photosensitive EM (13) is electrically connected to the photosensitive EM adjustment module.
2. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: An IC (22) is arranged at the center of the top of the front face of the FPC (2), and a ZIF connector (21) is arranged at the center of the bottom of the front face of the FPC (2).
3. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The light sensor (14) is located at the center of the back of the light sensing area (12), and the light sensor (14) and the light sensing area (12) are perpendicular to each other.
4. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The length and width of the front side of the FPC (2) are both smaller than the length and width of the front side of the display module (1).
5. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: A camera module is arranged at the center of the top of the front side of the OLED display screen (11).
6. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The front side of the photosensitive area (12) is in the shape of a rectangle, and the left and right sides of the photosensitive area (12) are rounded.
7. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The four corners of the display module (1) are rounded.
8. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The front of the display module (1) is provided with a glass cover plate, and the center of the front and the left side of the top of the glass cover plate are both provided with openings that are compatible with the photosensitive area (12) and the camera module.
9. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: The periphery of the front glass cover plate of the display module (1) is silk-screened with black ink.
10. The structure for optimizing the light sensitivity adjustment accuracy of an AMOLED module according to claim 1, characterized in that: A touch FPC is arranged on the right side of the bottom back of the OLED display screen (11), and one side of the touch FPC is connected to the FPC (2).