TWI246042B - Separation control printed circuit board - Google Patents

Abstract

The present invention provides a separation control printed circuit board (PCB) for display panel, which includes a main PCB and an auxiliary PCB. A control circuit for control signal output is installed on the main PCB. The auxiliary PCB is electrically connected with the main PCB by means of a flexible printed circuit (FPC), a flexible flat cable (FFC), or a connector. The auxiliary PCB is electrically connected with a display panel via a tape carrier package (TCP) or a FPC. The circuitry on the auxiliary PCB can either transmit or amplify the control signal of the main PCB to the display panel. It only requires to change the design of the main PCB to achieve modularization for easy assembly and time saving. Besides, there is no need to design any other tools to load printed circuit boards of different sizes.

Description

1246042 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a separate control printed circuit board, and in particular to a separate control printed circuit board that can be applied to a display panel. 0 [Previous technology ] Control of printed circuit board (Printed Circuit Board, PCB) is an indispensable basic constituent element of all information electronic products. It acts as a main carrier when installing and plugging various electronic components, and its main function is to The electronic components control the circuit design of the printed circuit board to achieve the purpose of relay transmission, so that the functions of each component can be brought into play. x The control printed circuit board can be electrically connected through a flexible circuit board (F 1 ex 丨 b ^ e Printing Circuit board (FPC)), a tape carrier package (TCP), or a flexible cable (FFC). To other substrates or interfaces. Taking a liquid crystal display module as an example, the source control printed circuit board (Source PCB) can be connected to the glass substrate of a liquid crystal display panel through TCp, while the gate control printed circuit board (Gate pcB) is generally a soft circuit board It is electrically connected with the glass substrate of the liquid crystal display panel. However, the specifications of the display panel of the needle manufacturer are not good. The traditional method often needs to match each other. 1 = The requirements of the display panel of the manufacturer, such as controlling the printed circuit, i.e. different components or different shapes of the printed circuit board, t also counts different control printed circuit boards. Please refer to the first item. The marginal display in figure i is a schematic representation of some traditional displays.

1246042 V. Description of the invention (2)

Illustration. The liquid crystal display 10 includes a source control printed circuit board (sour PCB) 15 and a plurality of τ c P 1 connected thereto, a gate control printed circuit board (Gate PCB) 12 and the like. A plurality of flexible printed circuit boards (FPCs) 17 connected, a display panel 11 and an outer frame 13 are connected. The source control printed circuit board 5 uses the TCP 14 which has been fixed on the display panel 11 for bounding, and the gate control printed circuit board 12 uses the flexible electrical board which has been fixed on the display panel 丨 丨. 17 is bonded, so that the source control printed circuit board 15 and the gate control printed circuit board 12 can be electrically connected to the display panel 丨 丨. The source control printed circuit is equipped with a control circuit on the board 15 for outputting multiple control signals. A driving chip 1 & is arranged on each TCP 14 and the display panel is driven by multiple data lines. The display unit on the top (not shown in the figure). The traces on the flexible circuit board 17 are used to pass the gate control signal from the printed circuit board 12 to the display panel. The outer frame 13 is used to fix and protect various components inside.

μ In order to respond to the different needs of different manufacturers for display panels, different source control printed circuit boards must be opened. 5 and gate control printed circuits ^ 12, so the bearing fixture must also be designed and manufactured separately to fix different The size and shape of the source ㈣ printed circuit board 15 and the interrogator control printed circuit board: ί ϋυ After a new fixture, it must take a considerable amount of time to come to the position of the mouthpiece> to improve the accuracy of assembly degree. The multiple 4 greens are equipped with a moving chip 14a on the KK 14 through the display panel. Therefore, for different manufacturers' needs for liquid crystal display: different resolutions, different circuit layouts of κρ 14 must be designed. 1246042

(layout) to match the display panels of different specifications required. In addition, due to the large area of the source control printed circuit board 15 and the hair control printed circuit board i 2 traditionally used, they must be bent before assembly. The source control printed circuit board 5 and the idle electrode: printed circuit board 12 can be locked on the display surface such as the rear only after the circuit board 17 or TCP 1 4. Because the flexible circuit board 17 and the like 14 must be folded during assembly, and the display panel u ^ is reversed, the flexible circuit board 17 and the wiring on the generation 1 > 14 may be broken.

SUMMARY OF THE INVENTION In view of this, an object of the present invention is to provide a detachable control printed circuit board. Using the method of separating each circuit board into a main circuit board and an auxiliary circuit board, according to the specifications of different manufacturers, only i: the design of the main circuit board can be changed, and the auxiliary circuit board can be a fixed shape with a fixed function . The invention can achieve the purpose of modularization. For the needs of different manufacturers, it is only necessary to change the design of the main circuit board. In this way, the advantages of easy assembly can be achieved, and man-hours can be saved. Design different fixtures to carry them. The auxiliary circuit board can be deployed on the front of the panel, reducing the traditional method of flipping the panel to place the control printed circuit board on the back of the panel. This can avoid TCP or flexible circuit board breaks. The invention provides a separate source control printed circuit board for a display panel, which includes a main circuit board and an auxiliary circuit board. main

" 1 I ...

" 1 I ... Q; MMmd-cable number 92117884

V. Description of the invention (4) The control board is provided with a control board for outputting multiple control signals, and the auxiliary circuit board is electrically connected through a flexible circuit board, FFC, or connector, such as a main circuit board. The auxiliary circuit board uses at least one tape carrier (TCP) and a display panel to electrically configure a driving chip on the TCP, and the circuit on the auxiliary circuit board can amplify the control signal of the main circuit board to the display panel. 1. The present invention also proposes a gate PCB applied to a display panel, including a main circuit board and a circuit board. The main circuit board is provided with a control circuit for outputting multiple control signals, and the auxiliary circuit board is electrically connected to the main question circuit board through a flexible circuit board, fff ", etc. Auxiliary circuit 1 The circuit board is electrically connected to the display panel, and the lines on the auxiliary circuit board pass or amplify the control signals of the main circuit board to the display panel. Here, the display panel may be a low-temperature polycrystalline silicon liquid crystal display light-emitting diode panel (OLED panel), a thin-film transistor (TFT-LCD Panel) or an electrical panel (that is, a day-to-day body fluid day-to-day display panel U The above-mentioned purpose, characteristics and advantages of the present invention can be specifically mentioned in the second embodiment-the preferred embodiment, and in accordance with the accompanying drawings, detailed = = [Embodiment] # 用 ί t ^ ί 别 ^ 5 eleven separable control Printed circuit board. The present invention can be used to allow the mother control printed circuit board to be separated into a main electrical circuit.

Page 81246042 V. Description of the invention (5) The design of the main circuit board is changed to achieve the purpose of modularization and the way of an auxiliary circuit board. According to the needs of different manufacturers, it can be renamed only as shown in Figure 2A The drawing is a schematic diagram of a device according to the first embodiment of the present invention. The liquid crystal display 20 includes a separate control printing consisting of a main source and an auxiliary source circuit board 26: a circuit board, an interrogation control printed circuit board 12 and its connection;] 二] = PΓ17, a display panel U, and an outer frame 13. The main source is a control circuit for outputting control signals. Auxiliary circuit board 26 is electrically connected to the main source circuit board 6 by a plurality of flexible circuit boards 28. The auxiliary source circuit board "is not electrically connected to the panel 11, and the auxiliary thunderbolt L ^ M is connected to the main main thunderbolt%. The circuit on the supplementary power board can transmit or put control signals to the display panel 11. Each A TCP 24; ί ΰ :: Λ chip; ", can drive a fixed number of displays ㈣ J analysis on the main circuit board 25 is equipped with a solution (", ", negative on the figure) to adjust the display panel 11 solution 蚯In addition, in order to meet the needs of different manufacturers, the resolution of the display panel of the display panel is controlled by a printed circuit board (the gate board 17 is electrically connected to the display panel u). 12 The gate is transmitted through multiple flexible circuits. Controlling the printed circuit board 12 == The wiring on the road ^ uses the outer frame 13 to fix and protect the 2 signals inside it to the display panel 11. The wiring on the auxiliary source circuit board 26. The power offender is mainly used to control the main TW1118F (AUO) .ptd Page 9 1246042-Seizure 92117884. _ year month __ day _ correction ___ 5. Description of the invention (6) Source circuit board 2 5 rounds out control The signal is directly transmitted to the display panel or the control signal is amplified and sent to the display panel 1 1. Therefore, the auxiliary The width of the auxiliary circuit board 26 can be small, for example, less than 丨 c. Therefore, the auxiliary circuit board 26 can be directly disposed on the front of the display or on the side of the display, without It needs to be the same as the traditional method, because the source control printed circuit board 15 is too large, and the source control printed circuit board 15 can only be placed on the back of the display panel 11. The main source circuit board 2 5 and the auxiliary source circuit board 2 6 The connection is based on a flexible thunder = 28 and a connection H (CQ donated tor) 29. Please refer to Fig. 2β Figure m ^ Fig. 2A The main source circuit board 25 and the auxiliary source circuit ㈣ Intention ... Source circuit The board 25 and one end of the auxiliary source board 28 are connected to the connector 29A. The connector 29A can be mated with the connector 29β arranged on the connector, and the source circuit board 25 is connected to the auxiliary source circuit board 25A. 26 < η & 主要, the main source circuit board 25 and the auxiliary connector 29 are embedded; two: = to perform the joint operation. However, the connection between the machine and the fixture circuit board 26 is not limited; :; The second counter is only with ㈣ ^^ 28 and connectors 29A and 29β, and flexible circuit boards can also be used 2 8 or connector 29 to achieve the purpose of electrically connecting the main and early use of flexible circuit board 26 j ° circuit board 25 and auxiliary source circuit In addition, 'main source circuit board 25 can use flexible circuit board 28 to Connect it; in addition to the auxiliary circuit board, you can also use a flexible cable

Page 10 1246042 _Case No. 92117884_ Amendment V. Description of Invention (7) (FFC) to connect. Second embodiment Example The separate control printed circuit board of the present invention can also be applied to a gate control printed circuit board. The gate control printed circuit board is separated into a main gate circuit board and an auxiliary gate circuit board. Please refer to FIG. 3A, which shows a schematic diagram of a display according to a second embodiment of the present invention. The liquid crystal display 30 includes a separate gate control printed circuit board composed of a main gate circuit board (Mairi Gate PCB) 32 and an auxiliary gate circuit board (Auxiliary Gate PCB) 33, and a source control printed circuit board. (S〇urce = B) 15 and the 仉 connected to it? 14. A display panel u and an outer frame circuit f 5 ί The circuit board 33 uses multiple flexible circuit boards 38 and the main gate circuit board M disk _-Ϊ, and the auxiliary gate circuit board 33 also uses multiple softness = = =: =: Display panel 11 on the auxiliary gate circuit board 33. The control signal of the auxiliary ift board 32 is displayed to lcm, so that the width of the auxiliary door VI board 33 is small. For example, the width of the auxiliary board VI board 33 can also be arranged on the side of the display to avoid direct soft connection to the display. The outer frame U is used to fix and protect the wiring break on the circuit board 38. The main gate circuit board 32 and the auxiliary gate = two pieces. The circuit board 38 and the connector (connector) 39 to the board 33 are soft-energized. The green display is the main gate circuit board 2 in Figure 3A. Second, referring to the figure,, and the auxiliary gate circuit board 33 1246042 V. Description of the invention (8) The crying sound is not connected to the day guard | gj circuit board 33 is not connected;:; sex; electricity! Board coffee on the gate circuit board 33, and soft electricity ::? 8 to 糸 are connected to the auxiliary device 3 9A. The other end of the connection gate 39A can be equipped with a connection gate 39B. The connection gate d y 15 on the main gate circuit board 32 is connected to each other. One ^ ^ ^ Zhang Yao helps the gate pole lightning technology μ buckle, the assembly action between the main gate circuit board 32 and the auxiliary board 3 3 can be fitted with the connector 39, without the need to use | to manually To perform the joint action ::: The traditional method requires a connection between the machine and the fixture circuit board 33; the interrogator circuit board 32 and the auxiliary open pole 38 and the connection cry 3 2 = I must use a flexible circuit board at the same time 〇〇 ^ Only σσ39A and 39B can be used, or only the soft Leiba 38 or connector 39 can be used to achieve the Π intermediate pole circuit board 32 and the auxiliary open pole which electrically connect the main Mα pregnant circuit board 33 In addition to the circuit, the gate circuit board 32 and the auxiliary gate circuit board 33 are connected in addition to the right circuit board 38, and (FFC) 来 i% #. "1 knife" uses a flexible cable. The third embodiment can be the same: ί: 5 :: third embodiment, the separate control printed circuit board is also shown in accordance with the third reality of this / Ming :: ^ y, No ~ Figure 2 of the liquid crystal display of the second embodiment of the present invention includes: the main source circuit board 45 and an auxiliary source circuit board 46; one of the group consisting of the auxiliary source circuit board 43 and the auxiliary interrogation circuit board 43 is separated. formula. 1246042 V. Description of the invention (9) m, 'Auxiliary gate circuit board 4 3 flexible circuit board U connected' and "outside auxiliary frame ^ original pole circuit board 46 connected to TCP 44, a display panel auxiliary ^ ^ ^ f The circuit board 45 is connected by the connector 59 and the flexible circuit board 58 by 4: electrical connection, and the intermediate circuit board is connected. The main circuit board 48 and the auxiliary gate circuit board 43 and the auxiliary gate circuit board 43 are electrically connected to each other; a control circuit is arranged on the pole circuit board 45 for output 44 and a drive chip is arranged on the display panel 11. Data line (d ... Hne). In addition, a resolution adjustment chip has been placed on the circuit board 45 (the resolution of the Λ tone / display panel 11 is not shown to match the resolution of the display panel of different manufacturers' specifications. Frame 13 It is used to fix all the components inside the Yabao. Display; and can be arranged at the same time to assemble the display from the front. The assembled f first locks the outer frame (beZel) 13 to the auxiliary source circuit board = And: Auxiliary idler circuit board 43. At this time, TCp 44 series has been fixed to the electric circuit two, = =: then the main source circuit board 45 and the main gate circuit board 42 points = ^ on connector 59 And connect, up ', so that the main source circuit board M circuit and auxiliary source circuit board 46 and auxiliary Jing can be directly locked to the auxiliary source circuit board 46 and auxiliary gate circuit board 43 because of the outer frame 13 , Can achieve the effect of electrostatic protection. And TCp 44 = first fixed ^ frame 13 'no need to flip' so you can avoid the traditional

1246042 V. Description of Invention (10)

44, avoid TCP 44 ^ i should. Therefore, the present invention can more effectively protect TCP from being damaged by the above-mentioned present invention:: i a :: voltage static electricity. Separate control of printed mines: As can be seen from the solid examples, the present invention can be disclosed 1. The board according to the present invention has at least the following advantages: The printed circuit board is divided into r, 忐, and die for the purpose. The traditional one control auxiliary circuit board and i-phase ^ two points = can be modularized according to the needs of different manufacturers. «In this way, you can achieve easy assembly of the nt: road board design, and there is no need to address the lightning of different sizes = worry points. The present invention can save man-hours, and also design different fixtures for the aHY circuit board. For the chip, only V is required. Different resolutions are required on the circuit board. The flexible circuit board connected to the auxiliary circuit board is located in the same as the auxiliary panel specifications. In addition, ==: the film can be die from different manufacturers, and the protective medium is used for punching on the flexible circuit board (Punch driving crystal II); the same use can be avoided. The present invention can avoid targeting different and simplified targets. & The shortcomings of the process and the design can be achieved easily and can be small, so that the auxiliary electrical invention can avoid TCP or soft

3. The width of the auxiliary circuit board of the present invention The circuit board can be directly configured on the case where the traces on the front circuit board of the display are broken. 4 · & + product 4c 1 A 本 .y 々θ av # applied to the present invention, the shoulder panel can be applied to various display surfaces, · Ί · ^ · ”, negative panel 'organic light emitting diode panel (organic lighting emi 11Ί *,., 1Ulng display, OLED panel),

TWl 118F (友 达) .ptd Page 14

1246042 V. Description of the invention (11) Thin film transistor liquid crystal display panel (TFT-LCD panel) $ Life limb < Electrocondensing surface; (Plasma display panel, PDP), etc., especially the large screen display panel of the special people. I a is used for electricity = said 'Although the present invention has three ... spirits and norms =, without departing from: the scope of the invention should be regarded as the second and the •, so the definition of the patent circle is quasi.

TW1118F (AUO) .ptd Page 15 1246042 Simple illustration of the drawing [Simplified illustration of the drawing] The first drawing is a schematic diagram of a traditional part of the display. Figure 2A shows the display part according to the first embodiment of the present invention. Figure k shows the display when the main source circuit board and the auxiliary source circuit board in Figure 2A are not connected. . The display part of the second embodiment of the invention is shown in FIG. 3A according to the schematic diagram of the present invention. Technology & f1 is a schematic diagram of the display when the main gate circuit board and the auxiliary gate circuit board in Figure 3A are not connected. _ Indication ^ 4. The drawings are not according to the third embodiment of the display part of the display part of the schematic label description 10, 20, 30, 40: LCD display panel gate control printed circuit board frame M, 24, 44: volume Tape carrier packages 14a, 24a, 44a: driver chip 15: source control printed circuit board

17, 28, 37, 38, 47, 48, U ^ b8: Flexible circuit board, 45 · Main source circuit board 26, 46: Auxiliary source circuit board TW1118F (AUO) .ptd Page 16 1246042 Simple diagram Description 29, 29A, 29B, 39, 39A, 39B, 49, 59 ·· Connector 3 2, 4 2: Main gate circuit board 3 3, 4 3: Auxiliary gate circuit board 1H · TW1118F (AUO) .ptd Page 17

Claims (1)

1246042 6. Scope of patent application 1. A separate control printed circuit board (PCB) is applied to a display panel. The printed circuit board includes: a main circuit board on which a control circuit is arranged, the control The circuit outputs a plurality of control signals; and an auxiliary circuit board is electrically connected to the main circuit board; wherein the auxiliary circuit board uses at least one Tape Carrier Package (TCP) and the display panel Electrically connected, a drive chip is configured on the δH TCP, and the lines on the auxiliary circuit board are used to transmit or amplify the control signals of the main circuit board to the display panel. 2 · The separate control printed circuit board as described in item 1 of the scope of patent application, the width of the auxiliary circuit board is less than 1 cm. 3. The separated control printed circuit board according to item 1 of the scope of patent application, wherein the main circuit board is a main source circuit board, and the auxiliary circuit board is an auxiliary source circuit board. 4. The separated control printed circuit board according to item 1 of the scope of patent application, wherein the driving chip can drive a fixed number of display panel data lines (data 1 ine), and an analysis is arranged on the main circuit board. Adjust the chip to match the resolution of the display panel with different specifications required by different manufacturers. 5. The separated control printed circuit board according to item 1 of the scope of the patent application, wherein the display panel is selected from the group consisting of a low-temperature polycrystalline silicon liquid crystal display panel, an organic light emitting diode panel (〇LED pane 1), a A thin film transistor liquid crystal display panel (TFT-LCD panel) and a plasma panel (PDP). TW1118F (AUO) .ptd Page 18 9 1246042 --MM 92117884 Amended on June 6, Patent Application Range 6 · As described in the first patent application scope ~ board, where the main circuit board and the auxiliary electricity are ionized Controls the electrical connection of the printed circuit board or flexible cable (FFC). The board is provided with a flexible circuit 7. The driver board is as described in item 1 of the scope of patent application, wherein the main circuit board is electrically connected to the knife-off control printed circuit. The circuit board is electrically connected by a connector. As described in item 1 of the scope of the patent application, J- wherein the main circuit board is arranged on the-side of the main circuit board; printed circuit made of FF. The auxiliary circuit board is connected with at least-soft f禝 Several connectors, and a connector is configured on the main circuit ^, each flexible circuit board is fitted to electrically connect the connectors of the main # board with each other 9 a magnetic eight 1 board and the Auxiliary circuit board. Is the library used for? A kind of knife-off gate control printed circuit board (gate PCin application = display panel, the printed circuit board includes a switch (可, can be copied by the system output: the second series 3 have-control circuit 'the control power of which, the: 5 power C requires the circuit board to be electrically connected; (FleXlble Println electrical two boards are electrically connected using at least-a flexible circuit board, and the auxiliary lightning Rui board (FPC)) and the main circuit board of the display panel. It is used to transfer or enlarge the 10-inch technology to the display panel. 11 ^ 2 2 The width of the circuit board is less than 1 cm. Page1246042 Brush circuit board 'wherein the main circuit board is a main gate circuit board, and the auxiliary circuit board is an auxiliary gate circuit board. "12. The separated gate control printed circuit board as described in item 9 of the scope of the patent application, wherein the display panel is selected from the group consisting of a low temperature polycrystalline silicon liquid crystal display panel, an organic light emitting diode panel, and a thin film electrode A group consisting of a crystalline liquid crystal display panel and a plasma panel. "13. The separated gate control printed circuit board as described in item 9 of the patent scope of the patent, wherein the main circuit board and the auxiliary circuit board are It is electrically connected through a flexible circuit board or a flexible cable. The separated gate control printed circuit board as described in item 9 of the patent claim, wherein the main circuit board and the auxiliary circuit board are electrically connected through a remote connector. ^. 1 5 · Separate gate control printed circuit board as described in item 9 of the patent claim, wherein the main circuit board is provided with a plurality of connections on the second side of the main circuit board, and the auxiliary circuit board is at least flexible The circuit board is connected with a connector for each soft board 1. The board can be connected with the connections σ 肷 a of the main circuit board to electrically connect the main circuit board and the auxiliary circuit board.